Sample records for area fraction occupancy

  1. Attributable fraction of work accidents related to occupational noise exposure in a Southeastern city of Brazil.

    PubMed

    Dias, Adriano; Cordeiro, Ricardo

    2007-07-01

    Noise is the most frequent type of occupational exposure and can lead to both auditory and extra-auditory dysfunction as well as increasing the risk of work accidents. The purpose of this study was to estimate the attributable fraction of work accidents related to occupational noise exposure in a medium-sized city in Southeast Brazil. In this hospital-based case-control study, including 600 cases and 822 controls, the odds ratio of work accidents (controlled for several covariables) was obtained classifying occupational noise exposure into four levels and determining the prevalence at each level. Based on these data, the calculated attributable fraction was 0.3041 (95%CI: 0.2341-0.3676), i.e., 30% of work accidents in the study area were statistically associated with occupational noise exposure. The authors discuss the causes of this association and the implications for the prevention of work accidents.

  2. A Computational Model of Fraction Arithmetic

    ERIC Educational Resources Information Center

    Braithwaite, David W.; Pyke, Aryn A.; Siegler, Robert S.

    2017-01-01

    Many children fail to master fraction arithmetic even after years of instruction, a failure that hinders their learning of more advanced mathematics as well as their occupational success. To test hypotheses about why children have so many difficulties in this area, we created a computational model of fraction arithmetic learning and presented it…

  3. Occupational risk factors have to be considered in the definition of high-risk lung cancer populations.

    PubMed

    Wild, P; Gonzalez, M; Bourgkard, E; Courouble, N; Clément-Duchêne, C; Martinet, Y; Févotte, J; Paris, C

    2012-03-27

    The aim of this study was to compute attributable fractions (AF) to occupational factors in an area in North-Eastern France with high lung cancer rates and a past of mining and steel industry. A population-based case-control study among males aged 40-79 was conducted, including confirmed primary lung cancer cases from all hospitals of the study region. Controls were stratified by broad age-classes, district and socioeconomic classes. Detailed occupational and personal risk factors were obtained in face-to-face interviews. Cumulative occupational exposure indices were obtained from the questionnaires. Attributable fractions were computed from multiple unconditional logistic regression models. A total of 246 cases and 531 controls were included. The odds ratios (ORs) adjusted on cumulative smoking and family history of lung cancer increased significantly with the cumulative exposure indices to asbestos, polycyclic aromatic hydrocarbons and crystalline silica, and with exposure to diesel motor exhaust. The AF for occupational factors exceeded 50%, the most important contributor being crystalline silica and asbestos. These AFs are higher than most published figures. This can be because of the highly industrialised area or methods for exposure assessments. Occupational factors are important risk factors and should not be forgotten when defining high-risk lung cancer populations.

  4. Concentrations of Staphylococcus species in indoor air as associated with other bacteria, season, relative humidity, air change rate, and S. aureus-positive occupants.

    PubMed

    Madsen, Anne Mette; Moslehi-Jenabian, Saloomeh; Islam, Md Zohorul; Frankel, Mika; Spilak, Michal; Frederiksen, Margit W

    2018-01-01

    The aim of this study was to obtain knowledge about concentrations of Staphylococcus aureus, MRSA (methicillin-resistant S. aureus), and other Staphylococcus species in indoor air in Greater Copenhagen and about factors affecting the concentrations. The effects of season, temperature, relative humidity, air change rate (ACR), other bacterial genera, area per occupant, and presence of S. aureus-positive occupants were studied. In samples from 67 living rooms, S. hominis, S. warneri, S. epidermidis, and S. capitis were found in 13-25%; S. saprophyticus, S. cohnii, and S. pasteuri in 5-10%; and S. lugdunensis, S. haemolyticus, S. caprae, S. equorum, S. kloosii, S. pettenkoferi, S. simulans, and S. xylosus in less than 3%. Staphylococcus aureus were found in two of 67 living rooms: spa type t034 (an MRSA) was recovered from a farmhouse, while spa type t509 was found in an urban home. Two species, S. equorum and S. kloosii, were found only in the farmhouse. Staphylococcus was significantly associated with season with lowest concentration and richness in winter. Genera composition was associated with ACR with smaller fractions of Staphylococcus at higher ACR, while richness was significantly and negatively associated with area per occupant. Concentration of Staphylococcus correlated positively with the total concentration of bacteria, but negatively with the total concentration of other bacteria. The concentration of Staphylococcus was not significantly associated with concentrations of the other abundant genera Bacillus, Kocuria, and Micrococcus. In offices with S. aureus-positive occupants, airborne S. aureus was not found. In conclusion, Staphylococcus species constitute a considerable proportion of the airborne bacteria in the studied homes and offices. However, both S. aureus and MRSA had very low prevalence during all seasons. Thus, transmission of S. aureus and MRSA through the air in living rooms in Copenhagen is expected to be limited. The negative associations between ACR and the fraction Staphylococcus constituted out of total bacteria, and between area per occupant and Staphylococcus richness indicate that it might be possible to affect the presence of airborne Staphylococcus in homes. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  5. Occupation and cancer in Britain

    PubMed Central

    Rushton, L; Bagga, S; Bevan, R; Brown, T P; Cherrie, J W; Holmes, P; Fortunato, L; Slack, R; Van Tongeren, M; Young, C; Hutchings, S J

    2010-01-01

    Background: Prioritising control measures for occupationally related cancers should be evidence based. We estimated the current burden of cancer in Britain attributable to past occupational exposures for International Agency for Research on Cancer (IARC) group 1 (established) and 2A (probable) carcinogens. Methods: We calculated attributable fractions and numbers for cancer mortality and incidence using risk estimates from the literature and national data sources to estimate proportions exposed. Results: 5.3% (8019) cancer deaths were attributable to occupation in 2005 (men, 8.2% (6362); women, 2.3% (1657)). Attributable incidence estimates are 13 679 (4.0%) cancer registrations (men, 10 063 (5.7%); women, 3616 (2.2%)). Occupational attributable fractions are over 2% for mesothelioma, sinonasal, lung, nasopharynx, breast, non-melanoma skin cancer, bladder, oesophagus, soft tissue sarcoma, larynx and stomach cancers. Asbestos, shift work, mineral oils, solar radiation, silica, diesel engine exhaust, coal tars and pitches, occupation as a painter or welder, dioxins, environmental tobacco smoke, radon, tetrachloroethylene, arsenic and strong inorganic mists each contribute 100 or more registrations. Industries and occupations with high cancer registrations include construction, metal working, personal and household services, mining, land transport, printing/publishing, retail/hotels/restaurants, public administration/defence, farming and several manufacturing sectors. 56% of cancer registrations in men are attributable to work in the construction industry (mainly mesotheliomas, lung, stomach, bladder and non-melanoma skin cancers) and 54% of cancer registrations in women are attributable to shift work (breast cancer). Conclusion: This project is the first to quantify in detail the burden of cancer and mortality due to occupation specifically for Britain. It highlights the impact of occupational exposures, together with the occupational circumstances and industrial areas where exposures to carcinogenic agents occurred in the past, on population cancer morbidity and mortality; this can be compared with the impact of other causes of cancer. Risk reduction strategies should focus on those workplaces where such exposures are still occurring. PMID:20424618

  6. Occupation and cancer in Britain.

    PubMed

    Rushton, L; Bagga, S; Bevan, R; Brown, T P; Cherrie, J W; Holmes, P; Fortunato, L; Slack, R; Van Tongeren, M; Young, C; Hutchings, S J

    2010-04-27

    Prioritising control measures for occupationally related cancers should be evidence based. We estimated the current burden of cancer in Britain attributable to past occupational exposures for International Agency for Research on Cancer (IARC) group 1 (established) and 2A (probable) carcinogens. We calculated attributable fractions and numbers for cancer mortality and incidence using risk estimates from the literature and national data sources to estimate proportions exposed. 5.3% (8019) cancer deaths were attributable to occupation in 2005 (men, 8.2% (6362); women, 2.3% (1657)). Attributable incidence estimates are 13 679 (4.0%) cancer registrations (men, 10 063 (5.7%); women, 3616 (2.2%)). Occupational attributable fractions are over 2% for mesothelioma, sinonasal, lung, nasopharynx, breast, non-melanoma skin cancer, bladder, oesophagus, soft tissue sarcoma, larynx and stomach cancers. Asbestos, shift work, mineral oils, solar radiation, silica, diesel engine exhaust, coal tars and pitches, occupation as a painter or welder, dioxins, environmental tobacco smoke, radon, tetrachloroethylene, arsenic and strong inorganic mists each contribute 100 or more registrations. Industries and occupations with high cancer registrations include construction, metal working, personal and household services, mining, land transport, printing/publishing, retail/hotels/restaurants, public administration/defence, farming and several manufacturing sectors. 56% of cancer registrations in men are attributable to work in the construction industry (mainly mesotheliomas, lung, stomach, bladder and non-melanoma skin cancers) and 54% of cancer registrations in women are attributable to shift work (breast cancer). This project is the first to quantify in detail the burden of cancer and mortality due to occupation specifically for Britain. It highlights the impact of occupational exposures, together with the occupational circumstances and industrial areas where exposures to carcinogenic agents occurred in the past, on population cancer morbidity and mortality; this can be compared with the impact of other causes of cancer. Risk reduction strategies should focus on those workplaces where such exposures are still occurring.

  7. Professional ski waxers' exposure to PFAS and aerosol concentrations in gas phase and different particle size fractions.

    PubMed

    Nilsson, Helena; Kärrman, Anna; Rotander, Anna; van Bavel, Bert; Lindström, Gunilla; Westberg, Håkan

    2013-04-01

    Previous reports show that professional ski waxers have elevated blood levels of perfluorinated substances (PFAS) such as perfluorooctanoate (PFOA) and are exposed to very high concentrations of PFAS in air during ski waxing. Aerosol exposure increases the risk of cardiovascular disease, and PFOA is a potential hormonal disruptor and carcinogen, and can affect the fatty acid metabolism. Animal studies have shown that 8:2 FTOH can undergo biotransformation to PFOA. For the first time, this study presents an occupational scenario of professional ski waxers who are exposed to extremely high dust levels as well as per- and polyfluorinated compounds. Personal and fixed measurements of total aerosol, inhalable and respirable fractions were performed during World Cup events 2007-2010. The occupational exposure limit (OEL) is exceeded in 37% of the personal measurements with concentrations up to 15 mg m(-3) in air. There are differences between personal and area total aerosol concentrations with levels from personal measurements twice as high as those from the area measurements. The personal levels for FTOH ranged up to 996 μg m(-3) (mean = 114 μg m(-3)) and for PFOA up to 4.89 μg m(-3) (mean = 0.53 μg m(-3)) in ENV+ sorbent samples as compared to the general exposure levels from air reaching only low ng m(-3) (<30 ng m(-3)) levels. FTOHs were not detected in aerosols but PFOA showed an average level of 12 μg m(-3) (range = 1.2-47 μg m(-3)). The ski waxers' exposure to paraffin fumes and PFAS is not in compliance with the occupational exposure standards and by far exceed the general populations' exposure. Preventive measures must be taken to minimize the exposure in this occupational group.

  8. Assessment of public health impact of work-related asthma.

    PubMed

    Jaakkola, Maritta S; Jaakkola, Jouni J K

    2012-03-05

    Asthma is among the most common chronic diseases in working-aged populations and occupational exposures are important causal agents. Our aims were to evaluate the best methods to assess occurrence, public health impact, and burden to society related to occupational or work-related asthma and to achieve comparable estimates for different populations. We addressed three central questions: 1: What is the best method to assess the occurrence of occupational asthma? We evaluated: 1) assessment of the occurrence of occupational asthma per se, and 2) assessment of adult-onset asthma and the population attributable fractions due to specific occupational exposures. 2: What are the best methods to assess public health impact and burden to society related to occupational or work-related asthma? We evaluated methods based on assessment of excess burden of disease due to specific occupational exposures. 3: How to achieve comparable estimates for different populations? We evaluated comparability of estimates of occurrence and burden attributable to occupational asthma based on different methods. Assessment of the occurrence of occupational asthma per se can be used in countries with good coverage of the identification system for occupational asthma, i.e. countries with well-functioning occupational health services. Assessment based on adult-onset asthma and population attributable fractions due to specific occupational exposures is a good approach to estimate the occurrence of occupational asthma at the population level. For assessment of public health impact from work-related asthma we recommend assessing excess burden of disease due to specific occupational exposures, including excess incidence of asthma complemented by an assessment of disability from it. International comparability of estimates can be best achieved by methods based on population attributable fractions. Public health impact assessment for occupational asthma is central in prevention and health policy planning and could be improved by purposeful development of methods for assessing health benefits from preventive actions. Registry-based methods are suitable for evaluating time-trends of occurrence at a given population but for international comparisons they face serious limitations. Assessment of excess burden of disease due to specific occupational exposure is a useful measure, when there is valid information on population exposure and attributable fractions.

  9. An evaluation of the occupational health risks to workers in a hazardous waste incinerator.

    PubMed

    Bakoğlu, Mithat; Karademir, Aykan; Ayberk, Savaş

    2004-03-01

    A study was conducted to evaluate the health impact of airborne pollutants on incinerator workers at IZAYDAS Incinerator, Turkey. Ambient air samples were taken from two sampling points in the incinerator area and analyzed for particulate matter, heavy metals, volatile and semi-volatile organic compounds (VOCs and SVOCs) and dioxins. The places where the maximum exposure was expected to occur were selected in determining the sampling points. The first point was placed in the front area of the rotary kiln, between the areas of barrel feeding, aqueous and liquid waste storage and solid waste feeding, and the second one was near the fly ash transfer line from the ash silo. Results were evaluated based on the regulations related to occupational health. Benzene, dibromochloropropane (DBCP) and hexachlorobutadiene (HCBD) concentrations in the ambient air of the plant were measured at levels higher than the occupational exposure limits. Dioxin concentrations were measured as 0.050 and 0.075 pg TEQ.m(-3), corresponding to a daily intake between 0.007 and 0.01 pg TEQ. kg body weight(-1).day (-1). An assessment of dioxin congener and homologue profiles suggested that gaseous fractions of dioxin congeners are higher in front of the rotary kiln, while most of them are in particle-bound phases near the ash conveyor. Finally, the necessity of further studies including occupational health and medical surveillance assessments on the health effects of the pollutants for the workers and the general population in such an industrialized area was emphasized.

  10. Attributable risk of carpal tunnel syndrome according to industry and occupation in a general population

    PubMed Central

    Roquelaure, Yves; Ha, Catherine; Nicolas, Guillaume; Pélier-Cady, Marie-Christine; Mariot, Camille; Descatha, Alexis; Leclerc, Annette; Raimbeau, Guy; Goldberg, Marcel; Imbernon, Ellen

    2008-01-01

    Objectives An epidemiological surveillance network for carpal tunnel syndrome (CTS) was set up in the general population of a French region to assess the attributable fraction of CTS according to work in high risk industries and occupations. Methods Cases of CTS occurring among patients aged 20 to 59 living in the Maine and Loire region were included prospectively from 2002 to 2004. Medical and occupation history was gathered by mailed questionnaire for 815 women and 20 men. Age-adjusted relative risks of CTS and the attributable fractions of CTS to work among exposed persons (AFE) were computed in relation to industry sectors and occupation categories. Results Twenty-one industry sectors and eight occupational categories for women, and ten sectors and six occupational categories for men were characterized by a significant excess risk of CTS. High values of AFE were observed in the manufacturing (from 42 to 93% for both genders), construction (66 for men) and personal service industries (66 for women), and trade and commerce (49% for women) sectors. High values of AFE were observed in female lower grade white-collar occupations (from 43 to 67%), and male (from 60 to 74%) and female (from 48 to 88%) blue-collar occupations. Conclusion The attributable fractions of CTS among workers employed in industry sectors and occupation categories identified at high risk of CTS varied between 36 and 93% PMID:18759264

  11. Mechanical-biological waste treatment and the associated occupational hygiene in Finland

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Tolvanen, Outi K.; Haenninen, Kari I.

    2006-07-01

    A special feature of waste management in Finland has been the emphasis on the source separation of kitchen biowaste (catering waste); more than two-thirds of the Finnish population participates in this separation. Source-separated biowaste is usually treated by composting. The biowaste of about 5% of the population is handled by mechanical-biological treatment. A waste treatment plant at Mustasaari is the only plant in Finland using digestion for kitchen biowaste. For the protection of their employees, the plant owners commissioned a study on environmental factors and occupational hygiene in the plant area. During 1998-2000 the concentrations of dust, microbes and endotoxinsmore » and noise levels were investigated to identify possible problems at the plant. Three different work areas were investigated: the pre-processing and crushing hall, the bioreactor hall and the drying hall. Employees were asked about work-related health problems. Some problems with occupational hygiene were identified: concentrations of microbes and endotoxins may increase to levels harmful to health during waste crushing and in the bioreactor hall. Because employees complained of symptoms such as dry cough and rash or itching appearing once or twice a month, it is advisable to use respirator masks (class P3) during dusty working phases. The noise level in the drying hall exceeded the Finnish threshold value of 85 dBA. Qualitatively harmful factors for the health of employees are similar in all closed waste treatment plants in Finland. Quantitatively, however, the situation at the Mustasaari treatment plant is better than at some Finnish dry waste treatment plants. Therefore is reasonable to conclude that mechanical sorting, which produces a dry waste fraction for combustion and a biowaste fraction for anaerobic treatment, is in terms of occupational hygiene better for employees than combined aerobic treatment and dry waste treatment.« less

  12. Occupant injury and fatality in general aviation aircraft for which dynamic crash testing is certification-mandated.

    PubMed

    Boyd, Douglas D

    2015-06-01

    Towards further improving general aviation aircraft crashworthiness, multi-axis dynamic tests have been required for aircraft certification (14CFR23.562) since 1985. The objective of this study was to determine if occupants in aircraft certified to these higher crashworthiness standards show a mitigated fraction of fatal accidents and/or injury severity. The NTSB aviation database was queried for accidents occurring between 2002 and 2012 involving aircraft certified to, or immune from, dynamic crash testing and manufactured after 1999. Only operations conducted under 14CFR Part 91 were considered. Statistical analysis employed proportion tests and logistic regression. Off-airport landings are associated with high decelerative forces; however for off-airport landings, the fraction of fatal accidents for aircraft subject to, or exempt from, dynamic crash testing was similar (0.53 and 0.60, respectively). Unexpectedly, for on-airport landings a higher fraction of fatalities was evident for aircraft whose certification mandated dynamic crash testing. Improved crashworthiness standards would be expected to translate into a reduced severity of accident injuries. For all accidents, as well as for those deemed survivable, the fraction of minor and serious injuries was reduced for occupants in aircraft certified to the higher crashworthiness standards. Surprisingly, the fraction of occupants fatally injured was not decreased for aircraft subject to dynamic crash tests. To shed light on this unexpected finding flight history, airman demographics and post-impact fires for aircraft for which dynamic crash testing is mandatory or exempt was examined. For the former cohort the median distance of the accident flight was nearly 44% higher. Aircraft subject to dynamic crash testing were also involved in a greater fraction (0.25 versus 0.12, respectively) of post-impact fires. Our data suggest that while the more stringent crashworthiness standards have mitigated minor and serious injuries, surprisingly the fraction of occupants fatally injured is unaltered. The unchanged fraction of fatal injuries may reflect partly (a) fatigue associated with longer flight distances and (b) a greater proportion of post-impact fires. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. [Estimates of Attributable Fraction of occupational cancers in the recent epidemiological literature].

    PubMed

    Merler, Enzo

    2009-01-01

    The article reviews the estimates of Attributable Fraction (AF) of occupational cancers. Because of their relevance, it starts with a synthesis and a comment on the estimates of avoidable cancers, and among these of cancers due to occupation, as expressed in 1981 by Doll and Peto. The main studies that have brought back into the epidemiological pathway the exercise of producing FA are quoted and the results of the new studies reviewed. The dimension of occupational cancers is of public health importance, because caused by exposures assumed to be avoidable. However, the estimates of AF are prone to uncertainties and limitations. Occupational cancers represent the major killer among deaths due to occupational diseases and injuries and a relevant fraction, especially among males, of total cancers. When related to developed countries, estimates may underestimate the risks, because of the insufficient data on exposures for workers in small firms, the lack of information on exposures in agriculture, the scanty availability of epidemiological studies on cancer risks among women. The trend towards a reduction of employees in industrial activities, the elimination or control of some exposures should suggest, instead, a reduction for occupational cancer. However, the more recent estimates of AF of occupational cancers are still in line with the estimates expressed more that 20 years ago. In developing countries, the estimates of AF are plenty of assumptions. In addition, some characteristics (i.e. the younger age of starting work, the extension of work at older age) suggest the need of better data, whereas information on exposures and events are dramatically lacking.

  14. The Magnitude of Mortality from Ischemic Heart Disease Attributed to Occupational Factors in Korea - Attributable Fraction Estimation Using Meta-analysis.

    PubMed

    Ha, Jaehyeok; Kim, Soo-Geun; Paek, Domyung; Park, Jungsun

    2011-03-01

    Ischemic heart disease (IHD) is a major cause of death in Korea and known to result from several occupational factors. This study attempted to estimate the current magnitude of IHD mortality due to occupational factors in Korea. After selecting occupational risk factors by literature investigation, we calculated attributable fractions (AFs) from relative risks and exposure data for each factor. Relative risks were estimated using meta-analysis based on published research. Exposure data were collected from the 2006 Survey of Korean Working Conditions. Finally, we estimated 2006 occupation-related IHD mortality. FOR THE FACTORS CONSIDERED, WE ESTIMATED THE FOLLOWING RELATIVE RISKS: noise 1.06, environmental tobacco smoke 1.19 (men) and 1.22 (women), shift work 1.12, and low job control 1.15 (men) and 1.08 (women). Combined AFs of those factors in the IHD were estimated at 9.29% (0.3-18.51%) in men and 5.78% (-7.05-19.15%) in women. Based on these fractions, Korea's 2006 death toll from occupational IHD between the age of 15 and 69 was calculated at 353 in men (total 3,804) and 72 in women (total 1,246). We estimated occupational IHD mortality of Korea with updated data and more relevant evidence. Despite the efforts to obtain reliable estimates, there were many assumptions and limitations that must be overcome. Future research based on more precise design and reliable evidence is required for more accurate estimates.

  15. Characterisation of workers' exposure in a Russian nickel refinery.

    PubMed

    Thomassen, Y; Nieboer, E; Ellingsen, D; Hetland, S; Norseth, T; Odland, J Ø; Romanova, N; Chernova, S; Tchachtchine, V P

    1999-02-01

    In support of a feasibility study of reproductive and developmental health among females employed in the Monchegorsk (Russia) nickel refinery, personal exposure and biological monitoring assessments were conducted. The inhalable aerosol fraction was measured and characterised by chemical speciation and particle-size distribution measurements. Unexpected findings were that: (i), pyrometallurgical working environments had significant levels of water-soluble nickel; (ii), significant exposure to cobalt occurred for the nickel workers; (iii), particles of size corresponding to the thoracic and respirable fractions appeared to be virtually absent in most of the areas surveyed. The water-soluble fraction is judged to be primarily responsible for the observed urinary nickel and cobalt concentrations. It is concluded relative to current international occupational-exposure limits for nickel in air, and because of the high nickel concentrations observed in urine, that the Monchegorsk nickel workers are heavily exposed. The implication of this finding for follow-up epidemiological work is alluded to.

  16. Personal Exposure to Particulate Matter and Endotoxin in California Dairy Workers

    NASA Astrophysics Data System (ADS)

    Garcia, Johnny

    The average number of cows per dairy has increased over the last thirty years, with little known about how this increase may impact occupational exposure. Thirteen California dairies and 226 workers participated in this study throughout the 2008 summer months. Particulate Matter (PM) and endotoxin concentrations were quantified using ambient area based and personal air samplers. Two size fractions were collected, Total Suspended Particulate matter (TSP) and PM 2.5. Differences across dairies were evaluated by placing area based integrated air samplers in established locations on the dairies, e.g. milking parlor, drylot corral, and freestall barns. The workers occupational exposure was quantified using personal air samplers. We analyzed concentrations along with the time workers spent conducting specific job tasks during their shift to identify high exposure job tasks. Biological and chemical analytical methods were employed to ascertain endotoxin concentrations in personal and area based air samples. Recombinant factor C assays (rFC) were used to analyze biologically active endotoxin and gas chromatography coupled with mass spectrometry in tandem (GC-MS/MS) was used to quantify total endotoxin. The PM2.5 concentrations ranged from 2-116 mug/m3 for ambient area concentration and 7-495 mug/m3 for personal concentrations while TSP concentrations ranged from 74-1690 mug/m3 for area ambient concentrations and 191-4950 mug/m3 for personal concentrations. Biologically active endotoxin concentrations in the TSP size fraction from ambient area based samples ranged from 11-2095 EU/m3 and 45-2061 EU/m3 for personal samples. Total endotoxin in the TSP size fraction ranged from 75-10,166 pmol/m3 for area based samples and 34-11,689 pmol/m3 for personal samples. Drylot corrals were found to have higher sample mean concentrations when compared to other locations on the dairies for PM and endotoxin. Re-bedding, of the freestalls, was found to consistently lead to higher personal sample mean concentrations when compared to other tasks performed on dairies for both endotoxin and PM. In mixed effect regression models, regional ambient concentrations of PM 2.5 helped account for variation in PM2.5 concentration outcomes. We found that while upwind and downwind mean concentrations were not significantly different, central mean concentrations were higher than upwind concentration. Variation in TSP levels was largely explained by dairy-level characteristics such as the age of the dairy and number of animals in the drylot corrals and freestall barns. The different locations within the dairy were found to differ in mean concentrations for TSP. Biologically active and total endotoxin concentration variation was explained by meteorological data, wind speed, relative humidity, and dairy waste management practices. Personal exposure levels where found to be higher than area based concentrations for PM and endotoxin. Endotoxin characteristics differed by particle size and location within the dairy. The chain length proportion for endotoxin in the PM 2.5 size fraction was dominated by C12 and C16 in the TSP size fraction.

  17. Rhinos in the Parks: An Island-Wide Survey of the Last Wild Population of the Sumatran Rhinoceros

    PubMed Central

    Pusparini, Wulan; Sievert, Paul R.; Fuller, Todd K.; Randhir, Timothy O.; Andayani, Noviar

    2015-01-01

    In the 200 years since the Sumatran rhinoceros was first scientifically described (Fisher 1814), the range of the species has contracted from a broad region in Southeast Asia to three areas on the island of Sumatra and one in Kalimantan, Indonesia. Assessing population and spatial distribution of this very rare species is challenging because of their elusiveness and very low population number. Using an occupancy model with spatial dependency, we assessed the fraction of the total landscape occupied by Sumatran rhinos over a 30,345-km2 survey area and the effects of covariates in the areas where they are known to occur. In the Leuser Landscape (surveyed in 2007), the model averaging result of conditional occupancy estimate was ψ^(SE[ψ^])=0.151(0.109) or 2,371.47 km2, and the model averaging result of replicated level detection probability p^(SE[p^])=0.252(0.267); in Way Kambas National Park—2008: ψ^(SE[ψ^])=0.468(0.165) or 634.18 km2, and p^(SE[p^])=0.138(0.571); and in Bukit Barisan Selatan National Park—2010: ψ^(SE[ψ^])=0.322(0.049) or 819.67 km2, and p^(SE[p^])=0.365(0.42). In the Leuser Landscape, rhino occurrence was positively associated with primary dry land forest and rivers, and negatively associated with the presence of a road. In Way Kambas, occurrence was negatively associated with the presence of a road. In Bukit Barisan Selatan, occurrence was negatively associated with presence of primary dryland forest and rivers. Using the probabilities of site occupancy, we developed spatially explicit maps that can be used to outline intensive protection zones for in-situ conservation efforts, and provide a detailed assessment of conserving Sumatran rhinos in the wild. We summarize our core recommendation in four points: consolidate small population, strong protection, determine the percentage of breeding females, and recognize the cost of doing nothing. To reduce the probability of poaching, here we present only the randomized location of site level occupancy in our result while retaining the overall estimation of occupancy for a given area. PMID:26376453

  18. Diesel exhaust exposures in port workers.

    PubMed

    Debia, Maximilien; Neesham-Grenon, Eve; Mudaheranwa, Oliver C; Ragettli, Martina S

    2016-07-01

    Exposure to diesel engine exhaust has been linked to increased cancer risk and cardiopulmonary diseases. Diesel exhaust is a complex mixture of chemical substances, including a particulate fraction mainly composed of ultrafine particles, resulting from the incomplete combustion of fuel. Diesel trucks are known to be an important source of diesel-related air pollution, and areas with heavy truck traffic are associated with higher air pollution levels and increased public health problems. Several indicators have been proposed as surrogates for estimating exposures to diesel exhaust but very few studies have focused specifically on monitoring the ultrafine fraction through the measurement of particle number concentrations. The aim of this study is to assess occupational exposures of gate controllers at the port of Montreal, Canada, to diesel engine emissions from container trucks by measuring several surrogates through a multimetric approach which includes the assessment of both mass and number concentrations and the use of direct reading devices. A 10-day measurement campaign was carried out at two terminal checkpoints at the port of Montreal. Respirable elemental and organic carbon, PM1, PM2.5, PMresp (PM4), PM10, PMtot (inhalable fraction), particle number concentrations, particle size distributions, and gas concentrations (NO2, NO, CO) were monitored. Gate controllers were exposed to concentrations of contaminants associated with diesel engine exhaust (elemental carbon GM = 1.6 µg/m(3); GSD = 1.6) well below recommended occupational exposure limits. Average daily particle number concentrations ranged from 16,544-67,314 particles/cm³ (GM = 32,710 particles/cm³; GSD = 1.6). Significant Pearson correlation coefficients were found between daily elemental carbon, PM fractions and particle number concentrations, as well as between total carbon, PM fractions and particle number concentrations. Significant correlation coefficients were found between particle number concentrations and the number of trucks and wind speed (R(2) = 0.432; p < 0.01). The presence of trucks with cooling systems and older trucks with older exhaust systems was associated with peak concentrations on the direct reading instruments. The results highlight the relevance of direct reading instruments in helping to identify sources of exposure and suggest that monitoring particle number concentrations improves understanding of workers' exposures to diesel exhaust. This study, by quantifying workers' exposure levels through a multimetric approach, contributes to the further understanding of occupational exposures to diesel engine exhaust.

  19. Translational toxicology in setting occupational exposure limits for dusts and hazard classification - a critical evaluation of a recent approach to translate dust overload findings from rats to humans.

    PubMed

    Morfeld, Peter; Bruch, Joachim; Levy, Len; Ngiewih, Yufanyi; Chaudhuri, Ishrat; Muranko, Henry J; Myerson, Ross; McCunney, Robert J

    2015-04-23

    We analyze the scientific basis and methodology used by the German MAK Commission in their recommendations for exposure limits and carcinogen classification of "granular biopersistent particles without known specific toxicity" (GBS). These recommendations are under review at the European Union level. We examine the scientific assumptions in an attempt to reproduce the results. MAK's human equivalent concentrations (HECs) are based on a particle mass and on a volumetric model in which results from rat inhalation studies are translated to derive occupational exposure limits (OELs) and a carcinogen classification. We followed the methods as proposed by the MAK Commission and Pauluhn 2011. We also examined key assumptions in the metrics, such as surface area of the human lung, deposition fractions of inhaled dusts, human clearance rates; and risk of lung cancer among workers, presumed to have some potential for lung overload, the physiological condition in rats associated with an increase in lung cancer risk. The MAK recommendations on exposure limits for GBS have numerous incorrect assumptions that adversely affect the final results. The procedures to derive the respirable occupational exposure limit (OEL) could not be reproduced, a finding raising considerable scientific uncertainty about the reliability of the recommendations. Moreover, the scientific basis of using the rat model is confounded by the fact that rats and humans show different cellular responses to inhaled particles as demonstrated by bronchoalveolar lavage (BAL) studies in both species. Classifying all GBS as carcinogenic to humans based on rat inhalation studies in which lung overload leads to chronic inflammation and cancer is inappropriate. Studies of workers, who have been exposed to relevant levels of dust, have not indicated an increase in lung cancer risk. Using the methods proposed by the MAK, we were unable to reproduce the OEL for GBS recommended by the Commission, but identified substantial errors in the models. Considerable shortcomings in the use of lung surface area, clearance rates, deposition fractions; as well as using the mass and volumetric metrics as opposed to the particle surface area metric limit the scientific reliability of the proposed GBS OEL and carcinogen classification.

  20. Student Achievement Effects of Technology-Supported Remediation of Understanding of Fractions

    ERIC Educational Resources Information Center

    Ross, John A.; Bruce, Catherine D.

    2009-01-01

    Students have difficulty learning fractions, and problems in understanding fractions persist into adulthood, with moderate to severe consequences for everyday and occupational decision-making. Remediation of student misconceptions is hampered by deficiencies in teachers' knowledge of the discipline and pedagogical content knowledge. We theorized…

  1. A descriptive epidemiological study on the patterns of occupational injuries in a coastal area and a mountain area in Southern China

    PubMed Central

    Li, Liping; Liu, Xiaojian; Lu, Yaogui; Yu, Min

    2012-01-01

    Objectives This study compared patterns of occupational injuries in two different areas, coastal (industrial) and mountain (agricultural), in Southern China to provide information for development of occupational injury prevention measures in China. Design Descriptive epidemiological study. Setting Data were obtained from the Hospital Injury Surveillance System based on hospital data collected from 1 April 2006 to 31 March 2008. Participants Cases of occupational injury, defined as injury that occurred when the activity indicated was work. Outcome measures Distribution and differences of patterns of occupational injuries between the two areas. Results Men were more likely than women to experience occupational injuries, and there was no difference in the two areas (p=0.112). In the coastal area, occupational injury occurred more in the 21–30-year age group, but in the mountain area, it was the 41–50-year age group (p<0.001). Occupational injuries in the two areas differed by location of hometown, education and occupation (all p<0.001). Occupational injuries peaked differently in the month of the year in the two areas (p<0.001). Industrial and construction areas were the most frequent locations where occupational injuries occurred (p<0.001). Most occupational injuries were unintentional and not serious, and patients could go home after treatment. The two areas also differed in external causes and consequences of occupational injuries. Conclusions The differing patterns of occupational injuries in the coastal and mountain areas in Southern China suggest that different preventive measures should be developed. Results are relevant to other developing countries that have industrial and agricultural areas. PMID:22710129

  2. On extending Kohn-Sham density functionals to systems with fractional number of electrons.

    PubMed

    Li, Chen; Lu, Jianfeng; Yang, Weitao

    2017-06-07

    We analyze four ways of formulating the Kohn-Sham (KS) density functionals with a fractional number of electrons, through extending the constrained search space from the Kohn-Sham and the generalized Kohn-Sham (GKS) non-interacting v-representable density domain for integer systems to four different sets of densities for fractional systems. In particular, these density sets are (I) ensemble interacting N-representable densities, (II) ensemble non-interacting N-representable densities, (III) non-interacting densities by the Janak construction, and (IV) non-interacting densities whose composing orbitals satisfy the Aufbau occupation principle. By proving the equivalence of the underlying first order reduced density matrices associated with these densities, we show that sets (I), (II), and (III) are equivalent, and all reduce to the Janak construction. Moreover, for functionals with the ensemble v-representable assumption at the minimizer, (III) reduces to (IV) and thus justifies the previous use of the Aufbau protocol within the (G)KS framework in the study of the ground state of fractional electron systems, as defined in the grand canonical ensemble at zero temperature. By further analyzing the Aufbau solution for different density functional approximations (DFAs) in the (G)KS scheme, we rigorously prove that there can be one and only one fractional occupation for the Hartree Fock functional, while there can be multiple fractional occupations for general DFAs in the presence of degeneracy. This has been confirmed by numerical calculations using the local density approximation as a representative of general DFAs. This work thus clarifies important issues on density functional theory calculations for fractional electron systems.

  3. The future excess fraction of occupational cancer among those exposed to carcinogens at work in Australia in 2012.

    PubMed

    Carey, Renee N; Hutchings, Sally J; Rushton, Lesley; Driscoll, Timothy R; Reid, Alison; Glass, Deborah C; Darcey, Ellie; Si, Si; Peters, Susan; Benke, Geza; Fritschi, Lin

    2017-04-01

    Studies in other countries have generally found approximately 4% of current cancers to be attributable to past occupational exposures. This study aimed to estimate the future burden of cancer resulting from current occupational exposures in Australia. The future excess fraction method was used to estimate the future burden of occupational cancer (2012-2094) among the proportion of the Australian working population who were exposed to occupational carcinogens in 2012. Calculations were conducted for 19 cancer types and 53 cancer-exposure pairings, assuming historical trends and current patterns continued to 2094. The cohort of 14.6 million Australians of working age in 2012 will develop an estimated 4.8 million cancers during their lifetime, of which 68,500 (1.4%) are attributable to occupational exposure in those exposed in 2012. The majority of these will be lung cancers (n=26,000), leukaemias (n=8000), and malignant mesotheliomas (n=7500). A significant proportion of future cancers will result from occupational exposures. This estimate is lower than previous estimates in the literature; however, our estimate is not directly comparable to past estimates of the occupational cancer burden because they describe different quantities - future cancers in currently exposed versus current cancers due to past exposures. The results of this study allow us to determine which current occupational exposures are most important, and where to target exposure prevention. Copyright © 2016 Elsevier Ltd. All rights reserved.

  4. 29 CFR 1910.27 - Fixed ladders.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND HEALTH STANDARDS Walking-Working Surfaces § 1910.27 Fixed ladders. (a) Design... fraction thereof, except that, where no cage, well, or ladder safety device is provided, landing platforms...

  5. Molecular diversity patterns among various phytoplankton size-fractions in West Greenland in late summer

    NASA Astrophysics Data System (ADS)

    Elferink, Stephanie; Neuhaus, Stefan; Wohlrab, Sylke; Toebe, Kerstin; Voß, Daniela; Gottschling, Marc; Lundholm, Nina; Krock, Bernd; Koch, Boris P.; Zielinski, Oliver; Cembella, Allan; John, Uwe

    2017-03-01

    Arctic regions have experienced pronounced biological and biophysical transformations as a result of global change processes over the last several decades. Current hypotheses propose an elevated impact of those environmental changes on the biodiversity, community composition and metabolic processes of species. The effects on ecosystem function and services, particularly when invasive or toxigenic harmful species become dominant, can be expressed over a wide range of temporal and spatial scales in plankton communities. Our study focused on the comparison of molecular biodiversity of three size-fractions (micro-, nano-, picoplankton) in the coastal pelagic zone of West Greenland and their association with environmental parameters. Molecular diversity was assessed via parallel amplicon sequencing the 28S rRNA hypervariable D1/D2 region. We showed that biodiversity distribution within the area of Uummannaq Fjord, Vaigat Strait and Disko Bay differed markedly within and among size-fractions. In general, we observed a higher diversity within the picoplankton size fraction compared to the nano- and microplankton. In multidimensional scaling analysis, community composition of all three size fractions correlated with cell size, silicate and phosphate, chlorophyll a (chl a) and dinophysistoxin (DTX). Individually, each size fraction community composition also correlated with other different environmental parameters, i.e. temperature and nitrate. We observed a more homogeneous community of the picoplankton across all stations compared to the larger size classes, despite different prevailing environmental conditions of the sampling areas. This suggests that habitat niche occupation for larger-celled species may lead to higher functional trait plasticity expressed as an enhanced range of phenotypes, whereas smaller organisms may compensate for lower potential plasticity with higher diversity. The presence of recently identified toxigenic harmful algal bloom (HAB) species (such as Alexandrium fundyense and A. ostenfeldii) in the area points out the potential risk for this vulnerable ecosystem in a changing world.

  6. Carbon Nanotube and Nanofiber Exposure Assessments: An Analysis of 14 Site Visits.

    PubMed

    Dahm, Matthew M; Schubauer-Berigan, Mary K; Evans, Douglas E; Birch, M Eileen; Fernback, Joseph E; Deddens, James A

    2015-07-01

    Recent evidence has suggested the potential for wide-ranging health effects that could result from exposure to carbon nanotubes (CNT) and carbon nanofibers (CNF). In response, the National Institute for Occupational Safety and Health (NIOSH) set a recommended exposure limit (REL) for CNT and CNF: 1 µg m(-3) as an 8-h time weighted average (TWA) of elemental carbon (EC) for the respirable size fraction. The purpose of this study was to conduct an industrywide exposure assessment among US CNT and CNF manufacturers and users. Fourteen total sites were visited to assess exposures to CNT (13 sites) and CNF (1 site). Personal breathing zone (PBZ) and area samples were collected for both the inhalable and respirable mass concentration of EC, using NIOSH Method 5040. Inhalable PBZ samples were collected at nine sites while at the remaining five sites both respirable and inhalable PBZ samples were collected side-by-side. Transmission electron microscopy (TEM) PBZ and area samples were also collected at the inhalable size fraction and analyzed to quantify and size CNT and CNF agglomerate and fibrous exposures. Respirable EC PBZ concentrations ranged from 0.02 to 2.94 µg m(-3) with a geometric mean (GM) of 0.34 µg m(-3) and an 8-h TWA of 0.16 µg m(-3). PBZ samples at the inhalable size fraction for EC ranged from 0.01 to 79.57 µg m(-3) with a GM of 1.21 µg m(-3). PBZ samples analyzed by TEM showed concentrations ranging from 0.0001 to 1.613 CNT or CNF-structures per cm(3) with a GM of 0.008 and an 8-h TWA concentration of 0.003. The most common CNT structure sizes were found to be larger agglomerates in the 2-5 µm range as well as agglomerates >5 µm. A statistically significant correlation was observed between the inhalable samples for the mass of EC and structure counts by TEM (Spearman ρ = 0.39, P < 0.0001). Overall, EC PBZ and area TWA samples were below the NIOSH REL (96% were <1 μg m(-3) at the respirable size fraction), while 30% of the inhalable PBZ EC samples were found to be >1 μg m(-3). Until more information is known about health effects associated with larger agglomerates, it seems prudent to assess worker exposure to airborne CNT and CNF materials by monitoring EC at both the respirable and inhalable size fractions. Concurrent TEM samples should be collected to confirm the presence of CNT and CNF. Published by Oxford University Press on behalf of the British Occupational Hygiene Society 2015.

  7. Quantification by aberration corrected (S)TEM of boundaries formed by symmetry breaking phase transformations.

    PubMed

    Schryvers, D; Salje, E K H; Nishida, M; De Backer, A; Idrissi, H; Van Aert, S

    2017-05-01

    The present contribution gives a review of recent quantification work of atom displacements, atom site occupations and level of crystallinity in various systems and based on aberration corrected HR(S)TEM images. Depending on the case studied, picometer range precisions for individual distances can be obtained, boundary widths at the unit cell level determined or statistical evolutions of fractions of the ordered areas calculated. In all of these cases, these quantitative measures imply new routes for the applications of the respective materials. Copyright © 2017 Elsevier B.V. All rights reserved.

  8. [Assessment of occupational exposure to wood dust in the Polish furniture industry].

    PubMed

    Szewczyńska, Małgorzata; Pośniak, Małgorzata

    2017-02-28

    Occupational exposure to wood dust can be responsible for many different harmful health effects, especially in workers employed in the wood industry. The assessment of wood dust adverse effects to humans, as well as the interpretation of its concentration measurements carried out to assess potential occupational exposure are very difficult. First of all, it is due to possible occurrence of different kind of wood dust in the workplace air, namely wood dust from dozens of species of trees belonging to 2 kinds of botanical gymnosperms and angiosperms, as well as to its different chemical composition. Total dust and respirable wood dust in the workplace air in the furniture industry was determined using the filtration-gravimetric method in accordance with Polish Standards PN-Z-04030-05:1991 and PN-Z-04030-06:1991. Air samples were collected based on the principles of individual dosimetry. Total dust concentrations were 0.84-13.92 mg/m3 and inhalable fraction concentrations, obtained after the conversion of total dust by applying a conversion factor of 1.59, were 1.34-22.13 mg/m3. Respirable fraction concentrations were 0.38-4.04 mg/m3, which makes approx. 25% of the inhalable fraction on average. The highest concentrations occurred in grinding and the lowest during milling processes of materials used in the manufacture of furniture. The results indicate that the share of respirable fraction in the inhalable fraction of wood dust is considerable. Due to the determination of the threshold limit value (TLV) for the inhalable fraction of wood dust, it is necessary to replace the previously used samplers for total dust with samplers that provide quantitative separation of wood dust inhalable fractions in accordance with the convention of this fraction as defined in PN-EN 481:1998. Med Pr 2017;68(1):45-60. This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.

  9. Toward risk reduction: predicting the future burden of occupational cancer.

    PubMed

    Hutchings, Sally; Rushton, Lesley

    2011-05-01

    Interventions to reduce cancers related to certain occupations should be evidence-based. The authors have developed a method for forecasting the future burden of occupational cancer to inform strategies for risk reduction. They project risk exposure periods, accounting for cancer latencies of up to 50 years, forward in time to estimate attributable fractions for a series of forecast target years given past and projected exposure trends and under targeted reduction scenarios. Adjustment factors for changes in exposed numbers and levels are applied in estimation intervals within the risk-exposure periods. The authors illustrate the methods by using a range of scenarios for reducing lung cancer due to occupational exposure to respirable crystalline silica. Attributable fractions for lung cancer due to respirable crystalline silica could be potentially reduced from 2.07% in 2010 to nearly 0% by 2060, depending on the timing and success of interventions. Focusing on achieving compliance with current exposure standards in small industries can be more effective than setting standards at a lower level. The method can be used to highlight high-risk carcinogens, industries, and occupations. It is adaptable for other countries and other exposure situations in the general environment and can be extended to include socioeconomic impact assessment.

  10. [The contribution of surveillance systems of occupational diseases and mesothelioma in environmental health studies].

    PubMed

    Marinaccio, A; Binazzi, A; Di Marzio, D; Massari, S; Scarselli, A; Iavicoli, S

    2011-01-01

    National surveillance systems of occupational diseases may contribute to evaluate the work-related component of diseases investigated in SENTIERI Project. For a description of SENTIERI, refer to the 2010 Supplement of Epidemiology & Prevention devoted to SENTIERI Project. The National Workers Compensation Authority (INAIL) archives all occupational diseases claims (more than 230 000 in the period 2000-2007) and is in charge of their compensation. The Italian National Mesothelioma Register (ReNaM) and the Sinonasal Cancer Register (ReNaTuNS) record high occupational etiological fraction neoplasms (i.e. mesothelioma and sinonasal cancers). The former has identified more than 10 000 mesothelioma cases until now, and covers almost the whole country; the latter is active only in three Italian regions, Piemonte, Lombardia and Toscana. The monitoring of cancer sites at lower occupational etiological fraction is based on a record-linkage procedure between population-based cancer registries and employment history data, available at the Italian National Institute for Social Security (INPS). Finally, the informative system Mal.Prof collects and classifies all the diseases possibly related to the work environment reported by the Prevention Services of the Local Health Units.

  11. On energetic prerequisites of attracting electrons

    NASA Astrophysics Data System (ADS)

    Sundholm, Dage

    2014-06-01

    The internal reorganization energy and the zero-point vibrational energy (ZPE) of fractionally charged molecules embedded in molecular materials are discussed. The theory for isolated open quantum systems is taken as the starting point. It is shown that for isolated molecules the internal reorganization-energy function and its slope, i.e., the chemical potential of an open molecular system are monotonically decreasing functions with respect to increasing amount of negative excess charge (q) in the range of q = [0, 1]. Calculations of the ZPE for fractionally charged molecules show that the ZPE may have a minimum for fractional occupation. The calculations show that the internal reorganization energy and changes in the ZPE are of the same order of magnitude with different behavior as a function of the excess charge. The sum of the contributions might favor molecules with fractional occupation of the molecular units and partial delocalization of the excess electrons in solid-state materials also when considering Coulomb repulsion between the excess electrons. The fractional electrons are then coherently distributed on many molecules of the solid-state material forming a condensate of attracting electrons, which is crucial for the superconducting state.

  12. On energetic prerequisites of attracting electrons.

    PubMed

    Sundholm, Dage

    2014-06-21

    The internal reorganization energy and the zero-point vibrational energy (ZPE) of fractionally charged molecules embedded in molecular materials are discussed. The theory for isolated open quantum systems is taken as the starting point. It is shown that for isolated molecules the internal reorganization-energy function and its slope, i.e., the chemical potential of an open molecular system are monotonically decreasing functions with respect to increasing amount of negative excess charge (q) in the range of q = [0, 1]. Calculations of the ZPE for fractionally charged molecules show that the ZPE may have a minimum for fractional occupation. The calculations show that the internal reorganization energy and changes in the ZPE are of the same order of magnitude with different behavior as a function of the excess charge. The sum of the contributions might favor molecules with fractional occupation of the molecular units and partial delocalization of the excess electrons in solid-state materials also when considering Coulomb repulsion between the excess electrons. The fractional electrons are then coherently distributed on many molecules of the solid-state material forming a condensate of attracting electrons, which is crucial for the superconducting state.

  13. Sensitization to sunflower pollen: only an occupational allergy?

    PubMed

    Jiménez, A; Moreno, C; Martínez, J; Martínez, A; Bartolomé, B; Guerra, F; Palacios, R

    1994-11-01

    Sunflower (Helianthus annuus) pollen sensitization has been reported as an occupational allergy. In this report, the sensitization of the general population living in sunflower-growing areas to Helianthus pollen was studied. Both RAST results in 32 adults with summer symptoms previously diagnosed as allergic to Artemisia pollen, and cross-reactivity studies between H. annuus and other Compositae suggested that H. annuus pollen was the main allergen involved in the hypersensitivity reaction of those patients. Good correlation was found between RAST and SPT to Helianthus and between RAST and conjunctival provocation test to Helianthus. Bronchial challenge tests performed on 8 of the 32 patients confirmed the clinical implication of Helianthus pollen in suspected subjects. Five workers, handling sunflower pollen, who suffered from related symptoms were subjected to the same study, showing lesser wheal areas and lesser specific IgE levels than a non-worker group. Thirteen patients with RAST values > or = class 2 showed 2 IgE-binding fractions at 34.0 and 42.8 kD in 65% of sera and 3 IgE-binding fractions at pI 4.9, 9.6 and 10.2 in 54% of sera. By means of micropreparative high-resolution chromatography, it was possible to purify a 34-kD major allergen. Analysis performed by RAST inhibition with sera from atopic patients and ELISA inhibition with experimental anti-Helianthus rabbit sera demonstrated a cross-reactivity between Helianthus and other Compositae, but low affinity of specific anti-Helianthus antibodies for heterologous antigens. Taking into account the above-mentioned data, and the high prevalence of Helianthus pollen in the atmosphere during harvesting (in spite of its entomophilous character), Helianthus pollen should be considered as an allergenic source to be investigated in the general population living in sunflower-growing regions suffering from seasonal summer allergy.

  14. [Organization of occupational therapeutic service, dynamics and structure of occupational morbidity in Krasnoyarsk area].

    PubMed

    Tereshchenko, Iu A; Zakharinskaia, O N

    2010-01-01

    The authors present organizational and functional structure of occupational therapeutic service in Krasnoyarsk area, major functional divisions of the territorial occupational therapeutic center and their activities. The article covers analysis of changes in levels and structure of occupational morbidity, defines main ways to optimize occupational therapeutic service for the territorial workers.

  15. Gender and regional differences in perceived job stress across Europe.

    PubMed

    de Smet, P; Sans, S; Dramaix, M; Boulenguez, C; de Backer, G; Ferrario, M; Cesana, G; Houtman, I; Isacsson, S O; Kittel, F; Ostergren, P O; Peres, I; Pelfrene, E; Romon, M; Rosengren, A; Wilhelmsen, L; Kornitzer, M

    2005-10-01

    Over the last 20 years stress at work has been found to be predictive of several conditions such as coronary heart disease, high blood pressure and non-specific sick leave. The Karasek demand/control/strain concept has been the most widely used in prospective epidemiological studies. To describe distribution in Karasek's demand/control (DC) dimensions as well as prevalence of strain in samples from different parts of Europe grouped into three regions (South, Middle, Sweden), adjusting for occupation. To describe gender differences in Karasek's DC dimensions along with strain prevalence and assess the regional stability of those differences in different occupational groups. The Job stress, Absenteeism and Coronary heart disease in Europe (JACE) study, a Concerted Action (Biomed I) of the European Union, is a multicentre prospective cohort epidemiological study: 38,019 subjects at work aged 35-59 years were surveyed at baseline. Standardised techniques were used for occupation coding (International Standardised Classification of Occupations) and for the DC model (Karasek scale): five items for the psychological demand and nine items for the control or decision latitude dimensions, respectively. A total of 34,972 subjects had a complete data set. There were important regional differences in the Karasek scales and in prevalence of strain even after adjustment for occupational class. Mean demand and control were higher in the Swedish centres when compared to two centres in Milano and Barcelona (Southern region) and values observed in four centres (Ghent, Brussels, Lille and Hoofddorp) in Middle Europe were closer to those observed in the Southern cities than to those obtained in the Swedish cities. Clerks (ISCO 4) and, more specifically, office clerks (ISCO 41) exhibited the smallest regional variation. In a multivariate model, the factor 'region' explained a small fraction of total variance. In the two Southern centres as well as in the four Middle European centres, men perceived marginally less job-demand as compared to women whereas the reverse was observed in the two Swedish centres. Differences were larger for control: men appeared to perceive more control at work than did women. In a multivariate model, gender explained a small fraction whereas occupational level explained a large fraction of the variance. In this standardised multicentre European study Karasek's DC model showed large gender and occupational differences whereas geographic region explained a small fraction of the total DC variance, notwithstanding large differences in labour market and working conditions as pointed out by the European Commission as recently as 2000.

  16. The State of Post-Occupancy Evaluation in the Practice of Educational Design.

    ERIC Educational Resources Information Center

    Lackney, Jeffery A.

    Over the past decade, thousands of new school buildings and renovations have been planned, designed, and constructed in the United States. Of these, only a small fraction will ever be evaluated against the educational needs of students and teachers. This paper reflects on the state of post-occupancy evaluation (POE) in the practice of educational…

  17. On energetic prerequisites of attracting electrons

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Sundholm, Dage

    The internal reorganization energy and the zero-point vibrational energy (ZPE) of fractionally charged molecules embedded in molecular materials are discussed. The theory for isolated open quantum systems is taken as the starting point. It is shown that for isolated molecules the internal reorganization-energy function and its slope, i.e., the chemical potential of an open molecular system are monotonically decreasing functions with respect to increasing amount of negative excess charge (q) in the range of q = [0, 1]. Calculations of the ZPE for fractionally charged molecules show that the ZPE may have a minimum for fractional occupation. The calculations showmore » that the internal reorganization energy and changes in the ZPE are of the same order of magnitude with different behavior as a function of the excess charge. The sum of the contributions might favor molecules with fractional occupation of the molecular units and partial delocalization of the excess electrons in solid-state materials also when considering Coulomb repulsion between the excess electrons. The fractional electrons are then coherently distributed on many molecules of the solid-state material forming a condensate of attracting electrons, which is crucial for the superconducting state.« less

  18. Female access to non-primary occupations: the Indonesian case.

    PubMed

    Moir, H V

    1980-12-01

    Focus in this discussion is on the range of nonprimary occupations open to women in Indonesia compared to those open to men. Particular attention is directed to the question of whether given occupations (particularly those that are important sources of employment) are more or less open to women in urban compared to rural areas. Whether an occupation is open to women or not is defined on the basis of the proportion female in that occupation. Where the proportion female is high, it is evident that women have a substantial degree of access to that occupation. In contrast, where the proportion female is very low, it is obviously unusual for women to enter that occupation and female access to such occupations is relatively restricted. The data presented refer to the employed population, i.e., the economically active population excluding the unemployed. The 1971 Population Census is used to maintain seasonal comparability with other analyses of the Indonesian workforce and to allow for seasonal comparability with the data from the 1980 Population Census. Out of 75 nonprimary occupation groups, 39 are excluded from the analysis because in most provinces they employ less than 0.1% of the labor force. The percentage of the male workforce in rural areas that is engaged in the remaining 36 occupations is less than the percentage of the female rural workforce engaged in these same occupations (95.0 compared to 98.2% in Java-Bali and 94.1 compared to 97.4% in the Outer Islands). In urban areas, male-female differences in the percentage concentrated in these 36 occupations are slightly larger (4.4 percentage points in urban compared to 3.2 percentage points in rural Java-Bali and 5.6 and 3.3 percentage points for urban and rural areas in the Outer Islands). A negative association was found between the degree of occupational segregation by sex and the relative modernness of an area, i.e., occupational segregation by sex is greatest in the least modern area of the country, the rural areas of the other islands, and is lowest in the metropolitan area of Jakarta. Although occupational segregation is lower in Jakarta than elsewhere in Indonesia, it is still quite high with an Index value of 51.2. Women were found to be underrepresented in the upper level occupations in all areas of Indonesia. The degree of underrepresentation was considerably greater in rural than in urban areas. Women are over-represented in sales and service occupations, and within these broad categories are most dominant in the more traditional sector of the economy than is the male labor force.

  19. [Italian national register of low etiological fraction occupational cancer pursuant to art. 244 of legislative decree n. 81/2008].

    PubMed

    Massari, S; Ippoliti, M; Menegozzo, S; Forastiere, F; Crosignani, P

    2011-01-01

    Legislative decree No. 81/2008 in the article n. 244 states that ISPESL, now INAIL, realizes a register of occupational cancers with low etiological fraction by means of a data collection method based exclusively on voluntary reports by GPs, healthcare and social security agencies (ReNaLOC) and a surveillance cancer monitoring system (OCCAM) based on linkage of routinely available data (cancer registries, hospital discharge records, Italian Social Security archives). ReNaLOC has produced a partial picture of the situation, it includes 1.584 cases as of June 2011. With OCCAM many situations of known risks were identified and others are worthy to be deepen.

  20. Worker Requirements and Methods of Entry into Home and Community Occupations Related to Home Economics; Brief Descriptions of Specific Occupations Classified Into Six Clusters, Highlights of Areas of Work and Worker Trait Groups for Individual Occupations. Professional Education Series No. HE-7.

    ERIC Educational Resources Information Center

    O'Donnell, Beatrice

    Descriptions of 200 occupations from the "Dictionary of Occupational Titles" Volume I designate the area of work and worker trait group and the reference page in Volume II of the Dictionary. Each occupational description briefly outlines highlights of work performed, worker requirements, and training and methods of entry. Occupations are…

  1. Prediction of CNS occupancy of dopamine D2 receptor based on systemic exposure and in vitro experiments.

    PubMed

    Kanamitsu, Kayoko; Arakawa, Ryosuke; Sugiyama, Yuichi; Suhara, Tetsuya; Kusuhara, Hiroyuki

    2016-12-01

    The effect of drugs in the central nervous system (CNS) is closely related to occupancy of their target receptor. In this study, we integrated plasma concentrations, in vitro/in vivo data for receptor or protein binding, and in silico data, using a physiologically based pharmacokinetic model, to examine the predictability of receptor occupancy in humans. The occupancy of the dopamine D2 receptor and the plasma concentrations of the antipsychotic drugs quetiapine and perospirone in humans were collected from the literature or produced experimentally. Association and dissociation rate constants and unbound fractions in the serum and brain were determined in vitro/in vivo using human D2 receptor-expressing membrane fractions, human serum and mouse brain. The permeability of drugs across the blood-brain barrier was estimated based on their physicochemical properties. The effect of a metabolite of perospirone, ID-15036, was also considered. The time profiles of D2 receptor occupancy following oral dose of quetiapine and perospirone predicted were similar to the observed values. This approach could assist in the design of clinical studies for drug development and the prediction of the impact of drug-drug interactions on CNS function in clinical settings. Copyright © 2016 The Japanese Society for the Study of Xenobiotics. Published by Elsevier Ltd. All rights reserved.

  2. Using OES Occupation Profiles in a Job Search

    ERIC Educational Resources Information Center

    Cunningham, Chris

    2013-01-01

    Using occupation profiles, jobseekers can see which industries employ the most workers in a particular field, which geographical areas have high concentrations of those jobs, and how wages differ by industry and geographical area. This article gives an overview of the data in the Occupational Employment Statistics (OES) occupation profiles. It…

  3. Habitat-Specific Occupancy and a Metapopulation Model of Triatoma sordida (Hemiptera: Reduviidae), a Secondary Vector of Chagas Disease, in Northeastern Argentina.

    PubMed

    Rodríguez-Planes, Lucía I; Gaspe, M Sol; Enriquez, Gustavo F; Gürtler, Ricardo E

    2018-02-28

    Triatoma sordida Stål (Hemiptera: Reduviidae), a secondary vector of Trypanosoma cruzi Chagas (Kinetoplastida: Trypanosomatidae), occasionally colonizes human sleeping quarters in Paraguay, Bolivia, and Brazil, whereas only sylvatic and peridomestic populations are found in Argentina. We carried out a cross-sectional survey of house infestation in a well-defined rural area of northeastern Argentina to identify the key habitats of T. sordida; describe its spatial distribution in an apparently undisturbed setting under no recent insecticide treatment and use metapopulation theory to investigate these spatially structured populations. Timed-manual searches in 2,177 georeferenced sites from 368 houses yielded T. sordida in 78 sites (house infestation prevalence, 19.9%). Most triatomines occurred in chicken nests, chicken coops, and trees where chickens roosted (prime habitats). Goat or sheep corrals and pig corrals had a lower fraction of occupied sites (occupancies) and abundance. Both occupancy and catch increased with increasing refuge availability according to multimodel inference with model averaging. The majority of suitable habitats were unoccupied despite their proximity to occupied sites. The site-specific occurrence of T. sordida and Triatoma infestans Klug (Hemiptera: Reduviidae) was positively and homogeneously associated over ecotopes, showing no evidence of interspecific interference. An incidence function metapopulation model (including intersite distances and vector carrying capacity) predicted a fivefold greater occupancy relative to the observed pattern, suggesting the latter represented a transient state. T. sordida failed to colonize human sleeping quarters, thrived in peridomestic habitats occupied by chickens, and had a limited occupancy likely related to a poor colonizing ability and the relative instability of its prime habitats.

  4. Occupation and male lung cancer: a case-control study in northern Sweden.

    PubMed Central

    Damber, L A; Larsson, L G

    1987-01-01

    Using a case-control study comprising about 600 men with lung cancer in northern Sweden the potential risk of different occupations and groups of occupations was studied. Longitudinal data concerning occupation, employment, and smoking habits were obtained by questionnaires. Some occupational groups (underground miners, copper smelter workers, electricians, and plumbers) exposed to previously known lung carcinogenic agents such as radon daughters, arsenic, and asbestos, had considerably increased odds ratios, which persisted after adjustment for smoking. A slightly raised odds ratio was observed in a group of blue collar workers potentially exposed to lung carcinogenic agents; this rise in the group as a whole mainly disappeared after adjustment for smoking. Farmers and foresters had strikingly low odds ratios, which could only partly be explained by their more moderate smoking habits. The population aetiological fraction attributable to occupation was estimated as 9%. PMID:3620367

  5. Mapping out a Career: An Analysis of Geographic Concentration of Occupations

    ERIC Educational Resources Information Center

    Watson, Audrey

    2010-01-01

    Not all occupations are created equal when it comes to geographic distribution. Some occupations are concentrated in relatively few geographic areas; others are spread more evenly across the United States. Specific occupations might be clustered in particular types of geographic settings, such as large urban areas or small rural ones. And some…

  6. Priorities for development of research methods in occupational cancer.

    PubMed Central

    Ward, Elizabeth M; Schulte, Paul A; Bayard, Steve; Blair, Aaron; Brandt-Rauf, Paul; Butler, Mary Ann; Dankovic, David; Hubbs, Ann F; Jones, Carol; Karstadt, Myra; Kedderis, Gregory L; Melnick, Ronald; Redlich, Carrie A; Rothman, Nathaniel; Savage, Russell E; Sprinker, Michael; Toraason, Mark; Weston, Ainsley; Olshan, Andrew F; Stewart, Patricia; Zahm, Sheila Hoar

    2003-01-01

    Occupational cancer research methods was identified in 1996 as 1 of 21 priority research areas in the National Occupational Research Agenda (NORA). To implement NORA, teams of experts from various sectors were formed and given the charge to further define research needs and develop strategies to enhance or augment research in each priority area. This article is a product of that process. Focus on occupational cancer research methods is important both because occupational factors play a significant role in a number of cancers, resulting in significant morbidity and mortality, and also because occupational cohorts (because of higher exposure levels) often provide unique opportunities to evaluate health effects of environmental toxicants and understand the carcinogenic process in humans. Despite an explosion of new methods for cancer research in general, these have not been widely applied to occupational cancer research. In this article we identify needs and gaps in occupational cancer research methods in four broad areas: identification of occupational carcinogens, design of epidemiologic studies, risk assessment, and primary and secondary prevention. Progress in occupational cancer will require interdisciplinary research involving epidemiologists, industrial hygienists, toxicologists, and molecular biologists. PMID:12524210

  7. Occupations that people with late effects of polio perceive difficult to perform.

    PubMed

    Appelin, Katja; Lexell, Jan; Månsson Lexell, Eva

    2014-09-01

    The aims of this study were to describe which occupations that people with late effects of polio perceive difficult to perform, which occupational area the occupations were related to and their level of complexity. The aims were also to describe their own perception of the importance, performance and satisfaction with these occupations. Sixty-two participants (mean age 61 years) were assessed with the Canadian Occupational Performance Measure. A total of 431 occupations were reported (43% self-care, 32% productivity and 25% leisure). Two subcategories, household management (27 %) and functional mobility (23 %), represented half of all the reported occupations. Ratings for prioritized occupations (N = 300) were high for importance and generally low for performance and satisfaction. A wide variety of occupations were reported, related to both occupational areas and different levels of complexity within an occupational area. The results underscore the importance of using assessment tools that can capture both the variety and complexity of occupations. By obtaining more detailed information about occupations that people with late effects of polio perceive difficult to perform, this will enable occupational therapists to offer targeted interventions that can facilitate engagement in meaningful and purposeful occupations. A larger and more heterogeneous sample may enable the results to be generalized to more people with late effects of polio. Future studies should focus on methods that can facilitate engagement in meaningful and purposeful occupations for people with late effects of polio. Copyright © 2014 John Wiley & Sons, Ltd.

  8. Task Analysis for Health Occupations. Cluster: Nursing. Occupation: Professional Nurse (Associate Degree). Education for Employment Task Lists.

    ERIC Educational Resources Information Center

    Lake County Area Vocational Center, Grayslake, IL.

    This document contains a task analysis for health occupations (professional nurse) in the nursing cluster. For each task listed, occupation, duty area, performance standard, steps, knowledge, attitudes, safety, equipment/supplies, source of analysis, and Illinois state goals for learning are listed. For the duty area of "providing therapeutic…

  9. Task Analysis for Health Occupations. Cluster: Nursing. Occupation: Home Health Aide. Education for Employment Task Lists.

    ERIC Educational Resources Information Center

    Lake County Area Vocational Center, Grayslake, IL.

    This document contains a task analysis for health occupations (home health aid) in the nursing cluster. For each task listed, occupation, duty area, performance standard, steps, knowledge, attitudes, safety, equipment/supplies, source of analysis, and Illinois state goals for learning are listed. For the duty area of "providing therapeutic…

  10. A Survey of Demand in Selected Metalworking Occupations for Major Areas of Idaho.

    ERIC Educational Resources Information Center

    Idaho State Dept. of Employment, Boise.

    To determine the state and area impact of occupational shortages in the metal working skills in Idaho and to provide a basis for planning effective vocational education programs, the Idaho Department of Employment conducted a sample survey of 68 employers in the metal working occupations. The occupations were selected from a national list of…

  11. [Risk and features of occupational diseases in nonferrous metallurgy workers of Kolsky Transpolar area].

    PubMed

    Siurin, S A; Chashchin, V P; Frolova, N M

    2015-01-01

    The study covered data on 977 cases of occupational diseases in 615 workers of nonferrous metallurgy in Kolsky Transpolar area. Findings are high risk of occupational diseases in workers engaged into electrolysis production of aluminium, all nickel reprocessing and pyrometallic copper reprocessing (GR 7.02-10.0). Electrolysis operators and anode operators of aluminium production are more prone to occupational diseases, with bone and muscular disorders (46.8%) prevalent in the morbidity structure. Respiratory diseases are more prevalent (68.2-100%) in the occupational morbidity structure of copper-nickelindustry workers. Conclusion is made on mandatory improvement of the work conditions and more effective individual protective means against occupational hazards in workers of nonferrous metallurgy in Kolsky Transpolar area.

  12. Spontaneous abortions among nickel-exposed female refinery workers.

    PubMed

    Vaktskjold, Arild; Talykova, Ljudmila V; Chashchin, Valerij P; Odland, Jon Ø; Nieboer, Evert

    2008-04-01

    A case-control study to investigate whether women employed in nickel-exposed work areas in early pregnancy are at elevated risk of spontaneous abortion (SA). Data about pregnancy outcome and maternal factors were obtained about each delivery and SA from women in selected work places. Each pregnancy record was assigned a categorical nickel (Ni) exposure rating according to the women's occupations at pregnancy onset. The guidelines were the water-soluble Ni subfraction of the inhalable aerosol fraction obtained by personal monitoring for nickel- and copper-refinery workers or/and measured urinary-Ni concentrations. The unadjusted odds ratio for the association between the maternal exposure to Ni and an SA for Ni-exposed women was 1.38 (95% confidence interval: 1.04-1.84), and the adjusted was 1.14 (0.95-1.37). In conclusion, there was no statistical association between maternal occupational exposure to water-soluble Ni in early pregnancy and the risk of self-reported SA. The findings do not exclude the possibility of a weak excess risk, or a risk in the first weeks of pregnancy.

  13. Teacher's Guide to Occupational Orientation.

    ERIC Educational Resources Information Center

    National Evaluation Systems, Inc., Amherst, MA.

    This guide is specifically designed to accompany materials developed for occupational orientation (particularly in Illinois) in the following five cluster areas: Applied biological and agricultural occupations; personal and public service occupations; health occupations; business, marketing, and management occupations; and industrial oriented…

  14. [Norm study of occupational stress on the professionals in Chengdu and Chongqing area].

    PubMed

    Zeng, Fan-Hua; Wang, Zhi-Ming; Wang, Mian-Zhen; Lan, Ya-Jia

    2004-12-01

    To establish the norm of occupational stress on the professionals in Chengdu and Chongqing area. According to the "Occupation Sorting Canon in the People's Republic of China", the professionals of the above-mentioned area were sorted out and randomly stratified. The normative data were derived from a sample of 2 064 participants. The modified Occupation Stress Inventory Revised Edition (OSI-R) was used to test the targets' occupational stress level (including stressors, strain and coping resources). (1) In these professionals, the sex ratio was about 1:1, average age (36.4 +/- 9.4) years, average length of service (15.9 +/- 10.0) years, 63.07% people were college educated and over 80% married. (2) Descriptive statistics for OSI-R scale scores for the total normative sample, for gender samples and for occupational group samples were modulated. (3) The gender norm showed that there were heavier role overload and stronger occupational strains in males than those in females (P < 0.01). The score of personal resources in the males was not different from that in females (P > 0.05). (4) In terms of different occupations, the scores of occupational role and personal strain among various groups indicated significant differences (P < 0.01). The score of personal resources did not manifest difference (P > 0.05). (5) The major factors influencing OSI-R were sex, occupation and length of service. The norm established can basically represent the occupational stress on professionals in Chengdu and Chongqing area.

  15. [Prospectic evaluation of the Italian Workers' Compensation Authority in a large case series of Occupational sino-nasal cancers].

    PubMed

    Casà, M; Bonzini, M; Parassoni, D; Tavecchio, D; Facchinetti, N; Castelnuovo, P; Ferrario, M M

    2012-01-01

    Sino-nasal cancer (SNC) are rare tumours with an elevated occupational etiological fraction, due both to well-established risk factors (wood and leather) and to more rare carcinogens. We evaluated the assessment for workers' compensation performed by the Italian Authority (INAL) in a case-series of occupational SNC (N = 45). We observed an elevated proportion of cases that were recognised as occupational, overall (36 on 39) and for any histotype. INAIL tended to recognize as professional not only patients with exposure to wood and leather but also cases with a documented exposure to formaldehyde, metal, polycyclic hydrocarbons. Significant differences across Italian macro-regions appeared, when the amount of worker compensation was investigated.

  16. Occupational Needs and Goals of Survivors of Domestic Violence.

    PubMed

    Javaherian-Dysinger, Heather; Krpalek, Dragana; Huecker, Esther; Hewitt, Liane; Cabrera, Michelle; Brown, Canique; Francis, Jason; Rogers, Katie; Server, Sage

    2016-01-01

    This study's purpose was to describe the occupational needs and goals of women residing in a domestic violence shelter and their self-perceived changes in satisfaction and occupational performance. Using a retrospective design, data from 68 occupational therapy evaluations from two domestic violence shelter settings were examined. Data were analyzed by coding problem areas and occupational goals and calculating frequencies for these variables. Where data were available, we also analyzed changes in pre- and postscores for self-perceived satisfaction and occupational performance (n = 25). The most common problem areas were leisure, education, work, child rearing, and health management. The most common goals were in the areas of education, work, health management, child rearing, and home management. Retrospective pre- and postchange scores in performance and satisfaction for 25 women were statistically significant. Findings provide direction for, and highlight the importance of occupational therapy services within domestic violence shelters as women regain their life skills.

  17. [Gluten--mechanisms of intolerance, symptoms and treatment possibilities of IgE-related allergy for gluten in the light of actual clinical and immunological studies].

    PubMed

    Obtułowicz, Krystyna; Waga, Jacek; Dyga, Wojciech

    2015-01-01

    Gluten is the product of a chemical bond of wheat prolamin proteins (glia- dins and glutenins) in an aqueous me- dium. IgE mediated gluten allergy can be induced either by gluten as an in- gredient in foods or wheat prolamines present in the air. The aim of the study was clinical analysis of 13 patients, who demonstrated elevated levels of gluten specific IgE and identification of the most allergenic protein fractions from several samples of wheat using serum of examined subjects. Clinical analysis showed the occupational allergy to gluten in the form of rhinitis, asthma and airborne dermatistis in 9 subjects, whose symptoms disappeared during isolation from occupational exposure despite the use of a normal diet. In case of 4 patients with severe forms of chronic urticaria and atopic dermatitis, who are also allergic to grass pollen at the same time, the introduction of a gluten-free diet resulted in improvement of health conditions. The study of wheat protein fractions revealed a significant polymorphism dependent on the wheat sample. In the protein fractions, low and high molecular glutenin fractions, and alpha, beta, gamma, and omega-gliadins were separated. It has been shown that the strongest immunogenic effect causes omega-5 gliadin fraction. The removal of this fraction resulted in reduction of skin reactivity evaluated by skin prick test in the studied patients.

  18. Assessment on the occupational exposure of urban public bus drivers to bioaccessible trace metals through resuspended fraction of settled bus dust.

    PubMed

    Gao, Peng; Liu, Sa; Ye, Wenyuan; Lin, Nan; Meng, Ping; Feng, Yujie; Zhang, Zhaohan; Cui, Fuyi; Lu, Binyu; Xing, Baoshan

    2015-03-01

    Limited information is available on the bioaccessible fraction of trace metals in the resuspended fraction of settled bus dust in order to estimate bus drivers' occupational exposure. In this study, 45 resuspended fraction of settled dust samples were collected from gasoline and compressed natural gas (CNG) powered buses and analyzed for trace metals and their fraction concentrations using a three-step sequential extraction procedure. Experimental results showed that zinc (Zn) had the greatest bioaccessible fraction, recorded as an average of 608.53 mg/kg, followed in order of decreasing concentration by 129.80 mg/kg lead (Pb), 56.77 mg/kg copper (Cu), 34.03 mg/kg chromium (Cr), 22.05 mg/kg nickel (Ni), 13.17 mg/kg arsenic (As) and 2.77 mg/kg cadmium (Cd). Among the three settled bus dust exposure pathways, ingestion was the main route. Total exposure hazard index (HIt) for non-carcinogenic effect trace metals was lower than the safety level of 1. The incremental lifetime cancer risk (ILCR) for drivers was estimated for trace metal exposure. Pb and Ni presented relatively high potential risks in the non-carcinogenic and potentially carcinogenic health assessment for all drivers. ILCR was in the range of 1.84E-05 to 7.37E-05 and 1.74E-05 to 6.95E-05 for gasoline and CNG buses, respectively. Copyright © 2014 Elsevier B.V. All rights reserved.

  19. Numerical investigation of VOC levels in the area of petrol stations.

    PubMed

    Kountouriotis, A; Aleiferis, P G; Charalambides, A G

    2014-02-01

    In the area of petrol stations several Volatile Organic Compounds (VOCs) leak into the atmosphere due to the evaporation of liquid fuels, especially of gasoline that is predominantly composed of light hydrocarbons. The aim of the present study is to investigate the spatial distribution of various VOCs when leaked into the atmosphere in the area of a petrol station. The study is based on numerical simulations. The effect of wind speed and direction, as well as of air temperature has been studied. Gasoline components of different properties have been studied (e.g. pentane, iso-octane, o-xylene, toluene, benzene), as well as ethanol that is considered a new fuel blend component that can be found in different fractions in new gasoline blends worldwide. The area of flammable cloud near the source of the leak is investigated for various atmospheric conditions taking into account the lower and higher flammable limits of each compound. Lastly, the exposure to gasoline vapour is studied taking into consideration the recommended occupational exposure limits of various organisations. © 2013 Elsevier B.V. All rights reserved.

  20. Exploring Manganese Fractionation Using a Sequential Extraction Method to Evaluate Welders' Gas Metal Arc Welding Exposures during Heavy Equipment Manufacturing.

    PubMed

    Hanley, Kevin W; Andrews, Ronnee; Bertke, Steven; Ashley, Kevin

    2017-01-01

    The National Institute for Occupational Safety and Health (NIOSH) has conducted an occupational exposure assessment study of manganese (Mn) in welding fume at three factories where heavy equipment was manufactured. The objective of this study was to evaluate exposures to different Mn fractions using a sequential extraction procedure. One hundred nine worker-days were monitored for either total or respirable Mn during gas metal arc welding. The samples were analyzed using an experimental method to separate different Mn fractions based on selective chemical solubility. The full-shift total particle size Mn time-weighted average (TWA) breathing zone concentrations ranged 0.38-26 for soluble Mn in a mild ammonium acetate solution; 3.2-170 for Mn0,2+ in acetic acid; 3.1-290 for Mn3+,4+ in hydroxylamine-hydrochloride; and non-detectable (ND)-130 µg m-3 for insoluble Mn fractions in hydrochloric and nitric acid. The summation of all the total particulate Mn TWA fractions yielded results that ranged from 6.9 to 610 µg m-3. The range of respirable size Mn TWA concentrations were 0.33-21 for soluble Mn; 15-140 for Mn0,2+; 14-170 for Mn3+,4+; 5.3-230 for insoluble Mn; and 36-530 µg m-3 for Mn (sum of fractions). Total particulate TWA GM concentrations of the Mn (sum) were 53 (GSD = 2.5), 150 (GSD = 1.7), and 120 (GSD = 1.8) µg m-3 for the three separate factories. Although all of the workers' exposures were measured below the OSHA regulatory permissible exposure limit and NIOSH recommended exposure limit for Mn, 70 welders' exposures exceeded the ACGIH Threshold Limit Values® for total Mn (100 µg m-3) and 29 exceeded the recently adopted respirable Mn TLV (20 µg m-3). This study shows that a welding fume exposure control and management program is warranted for Mn, which includes improved exhaust ventilation and may necessitate the use of respiratory protection, especially for welding parts that impede air circulation. Published by Oxford University Press on behalf of the British Occupational Hygiene Society 2017.

  1. Graphic Communications. Occupational Competency Analysis Profile.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Vocational Instructional Materials Lab.

    This Occupational Competency Analysis Profile (OCAP), which is one of a series of OCAPs developed to identify the skills that Ohio employers deem necessary to entering a given occupation/occupational area, lists the occupational, academic, and employability skills required of individuals entering graphic communications occupations. The…

  2. Research priorities in mental health occupational therapy: A study of clinician perspectives.

    PubMed

    Hitch, Danielle; Lhuede, Kate

    2015-10-01

    The evidence to support mental health occupational therapy has proliferated in the early years of this century, but this growth has tended to be organic rather than targeted. Previous efforts to identify research priorities in this area of practice are either out dated, or encompass discrete areas of practice. The aim of this study was to identify priority areas for research in mental health occupational therapy from clinician's perspectives. A Policy Delphi method was used to enable occupational therapists to define and differentiate their perspectives on research priorities. Forty-two occupational therapists took part in the first two rounds of this method, with 69% (n = 29) going on to complete the third and final round of data collection. A Likert scale was used to rate the importance of each priority, and descriptive quantitative analysis undertaken to identify those most consistently identified as being highly important. Four research priorities were identified as being highly important in this study: (i) working in an occupationally focussed way; (ii) consumer experience of therapy groups; (iii) identifying factors which increase consumer engagement in occupation; and (iv) engaging patients on the inpatient unit in meaningful and positive occupation. Two of the priority areas are already the subject of substantial evidence bases, but there has been far less research into consumer experiences of groups and occupational engagement in acute settings. Collaboration between research teams and greater consumer inclusion are recommended for the future. This study provides an updated indication of research priorities for mental health occupational therapy in Australia. © 2015 Occupational Therapy Australia.

  3. Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

    USGS Publications Warehouse

    Kennedy, Patricia L.; Bartuszevige, Anne M.; Houle, Marcy; Humphrey, Ann B.; Dugger, Katie M.; Williams, John

    2014-01-01

    Potential for large prairie remnants to provide habitat for grassland-obligate wildlife may be compromised by nonsustainable range-management practices. In 1979–1980, high nesting densities of 3 species of hawks in the genus Buteo—Ferruginous Hawk (Buteo regalis), Red-tailed Hawk (B. jamaicensis), and Swainson's Hawk (B. swainsoni)—were documented on the Zumwalt Prairie and surrounding agricultural areas (34,361 ha) in northeastern Oregon, USA. This area has been managed primarily as livestock summer range since it was homesteaded. Unlike in other prairie remnants, land management on the Zumwalt Prairie was consistent over the past several decades; thus, we predicted that territory occupancy of these 3 species would be stable. We also predicted that territory occupancy would be positively related to local availability of nesting structures within territories. We evaluated these hypotheses using a historical dataset, current survey and habitat data, and occupancy models. In support of our predictions, territory occupancy of all 3 species has not changed over the study period of ∼25 yr, which suggests that local range-management practices are not negatively affecting these taxa. Probability of Ferruginous Hawk occupancy increased with increasing area of aspen, an important nest structure for this species in grasslands. Probability of Swainson's Hawk occupancy increased with increasing area of large shrubs, and probability of Red-tailed Hawk occupancy was weakly associated with area of conifers. In the study area, large shrubs and conifers are commonly used as nesting structures by Swainson's Hawks and Red-tailed Hawks, respectively. Availability of these woody species is changing (increases in conifers and large shrubs, and decline in aspen) throughout the west, and these changes may result in declines in Ferruginous Hawk occupancy and increases in Swainson's Hawk and Red-tailed Hawk occupancy in the future.

  4. Precision Machining Technologies. Occupational Competency Analysis Profile.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Vocational Instructional Materials Lab.

    This Occupational Competency Analysis Profile (OCAP), which is one of a series of OCAPs developed to identify the skills that Ohio employers deem necessary to entering a given occupation/occupational area, lists the occupational, academic, and employability skills required of individuals entering the occupation of precision machinist. The…

  5. Welding. Occupational Competency Analysis Profile.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Vocational Instructional Materials Lab.

    This Occupational Competency Analysis Profile (OCAP), which is one of a series of OCAPs developed to identify the skills that Ohio employers deem necessary to entering a given occupation/occupational area, lists the occupational, academic, and employability skills required of individuals entering the occupation of welder. The introduction explains…

  6. Task Listing for Introduction to Health Occupations. Competency-Based Education.

    ERIC Educational Resources Information Center

    Henrico County Public Schools, Glen Allen, VA. Virginia Vocational Curriculum Center.

    This task listing is designed to be used in combination with the "Health Occupations Education Service Area Resource" in order to implement competency-based education in health occupations programs in Virginia. The task listing contains four major sections: (1) content/concept areas; (2) program and course description; (3) content…

  7. Utilizing Occupational Complexity Levels in Vocational Interest Assessments: Assessing Interests for STEM Areas

    ERIC Educational Resources Information Center

    Toker, Yonca; Ackerman, Phillip L.

    2012-01-01

    With an aim to improve vocational interest assessments geared toward the Science, Technology, Engineering, and Mathematics (STEM) areas, we developed a new assessment by incorporating occupational complexity levels. Occupations which correspond to Holland's realistic and investigative themes were identified together with their complexity levels…

  8. Endotoxin and dust at respirable and nonrespirable particle sizes are not consistent between cage- and floor-housed poultry operations.

    PubMed

    Kirychuk, Shelley P; Reynolds, Stephen J; Koehncke, Niels K; Lawson, Joshua; Willson, Philip; Senthilselvan, Ambikaipakan; Marciniuk, Darcy; Classen, Henry L; Crowe, Trever; Just, Natasha; Schneberger, David; Dosman, James A

    2010-10-01

    Individuals engaged in work in intensive animal houses experience some of the highest rates of occupationally related respiratory symptoms. Organic dust and in particular endotoxin has been most closely associated with respiratory symptoms and lung function changes in workers. It has previously been shown that for intensive poultry operations, type of poultry housing [cage-housed (CH) versus floor-housed (FH)] can influence the levels of environmental contaminants. The goal of the study was to determine the differences in endotoxin and dust levels at different size fractions between CH and FH poultry operations. Fifteen CH and 15 FH poultry operations were sampled for stationary measurements (area) of dust and associated endotoxin. Fractioned samples were collected utilizing Marple cascade impactors. Gravimetric and endotoxin analysis were conducted on each of the filters. When assessed by individual Marple stage, there was significantly greater airborne endotoxin concentration (endotoxin units per cubic meter) in the size fraction >9.8 μm for the FH operations whereas at the size fraction 1.6-3.5 μm, the CH operations had significantly greater airborne endotoxin concentration than the FH operations. Endotoxin concentration in the dust mass (endotoxin units per milligram) was significantly greater in the CH operations as compared to the FH operations for all size fractions >1.6 μm. As such, endotoxin in the respirable fraction accounted for 24% of the total endotoxin in the CH operations whereas it accounted for only 11% in the FH operations. There was significantly more dust in all size fractions in the FH operations as compared to the CH poultry operations. There is more endotoxin in the presence of significantly lower dust levels in the respirable particle size fractions in CH poultry operations as compared to the FH poultry operations. This difference in respirable endotoxin may be important in relation to the differential respiratory response experienced by CH and FH poultry operation workers.

  9. A Pilot Project to Identify Sex Role Factors Affecting the Employment of Vocational Students in Selected Occupational Areas. Final Report, February 1, 1980-June 30, 1980.

    ERIC Educational Resources Information Center

    Wichowski, Chester P.; DuMond, Doreen C.

    A pilot study was conducted to identify sex role factors which could affect the search for employment and the adjustment to employment for vocational graduates in selected occupational areas. Target employment areas were identified through a review of occupations with a disproportionate composition by one sex or the other. These included…

  10. Estimating occupancy dynamics for large-scale monitoring networks: amphibian breeding occupancy across protected areas in the northeast United States

    USGS Publications Warehouse

    Miller, David A.W.; Grant, Evan H. Campbell

    2015-01-01

    Regional monitoring strategies frequently employ a nested sampling design where a finite set of study areas from throughout a region are selected within which intensive sub-sampling occurs. This sampling protocol naturally lends itself to a hierarchical analysis to account for dependence among sub-samples. Implementing such an analysis within a classic likelihood framework is computationally prohibitive with species occurrence data when accounting for detection probabilities. Bayesian methods offer an alternative framework to make this analysis feasible. We demonstrate a general approach for estimating occupancy when data come from a nested sampling design. Using data from a regional monitoring program of wood frogs (Lithobates sylvaticus) and spotted salamanders (Ambystoma maculatum) in vernal pools, we analyzed data using static and dynamic occupancy frameworks. We analyzed observations from 2004-2013collected within 14 protected areas located throughout the northeast United States . We use the data set to estimate trends in occupancy at both the regional and individual protected area level. We show that occupancy at the regional level was relatively stable for both species. Much more variation occurred within individual study areas, with some populations declining and some increasing for both species. We found some evidence for a latitudinal gradient in trends among protected areas. However, support for this pattern is overestimated when the hierarchical nature of the data collection is not controlled for in the analysis. For both species, occupancy appeared to be declining in the most southern areas, while occupancy was stable or increasing in more northern areas. These results shed light on the range-level population status of these pond-breeding amphibians and our approach provides a framework that can be used to examine drivers of change including among-year and among-site variation in occurrence dynamics, while properly accounting for nested structure of data collection.

  11. A second-order unconstrained optimization method for canonical-ensemble density-functional methods

    NASA Astrophysics Data System (ADS)

    Nygaard, Cecilie R.; Olsen, Jeppe

    2013-03-01

    A second order converging method of ensemble optimization (SOEO) in the framework of Kohn-Sham Density-Functional Theory is presented, where the energy is minimized with respect to an ensemble density matrix. It is general in the sense that the number of fractionally occupied orbitals is not predefined, but rather it is optimized by the algorithm. SOEO is a second order Newton-Raphson method of optimization, where both the form of the orbitals and the occupation numbers are optimized simultaneously. To keep the occupation numbers between zero and two, a set of occupation angles is defined, from which the occupation numbers are expressed as trigonometric functions. The total number of electrons is controlled by a built-in second order restriction of the Newton-Raphson equations, which can be deactivated in the case of a grand-canonical ensemble (where the total number of electrons is allowed to change). To test the optimization method, dissociation curves for diatomic carbon are produced using different functionals for the exchange-correlation energy. These curves show that SOEO favors symmetry broken pure-state solutions when using functionals with exact exchange such as Hartree-Fock and Becke three-parameter Lee-Yang-Parr. This is explained by an unphysical contribution to the exact exchange energy from interactions between fractional occupations. For functionals without exact exchange, such as local density approximation or Becke Lee-Yang-Parr, ensemble solutions are favored at interatomic distances larger than the equilibrium distance. Calculations on the chromium dimer are also discussed. They show that SOEO is able to converge to ensemble solutions for systems that are more complicated than diatomic carbon.

  12. Are occupational factors important determinants of socioeconomic inequalities in musculoskeletal pain?

    PubMed

    Mehlum, Ingrid Sivesind; Kristensen, Petter; Kjuus, Helge; Wergeland, Ebba

    2008-08-01

    The aim of this study was to quantify socioeconomic inequalities in low-back pain, neck-shoulder pain, and arm pain in the general working population in Oslo and to examine the impact of job characteristics on these inequalities. All economically active 30-, 40-, and 45-year-old persons who attended the Oslo health study in 2000-2001 and answered questions on physical job demands, job autonomy, and musculoskeletal pain were included (N=7293). Occupational class was used as an indicator of socioeconomic status. The lower occupational classes were compared with higher grade professionals, and prevalences, prevalence ratios, prevalence differences, and population attributable fractions were calculated. There were marked, stepwise socioeconomic gradients for musculoskeletal pain, steeper for the men than for the women. The relative differences (prevalence ratios) were larger for low-back pain and arm pain than for neck-shoulder pain. The absolute differences (prevalence differences) were the largest for low-back pain. Physical job demands explained a substantial proportion of the absolute occupational class inequalities in low-back pain, while job autonomy was more important in explaining the inequalities in neck-shoulder pain and arm pain. The estimated population attributable fractions supported the impact of job characteristics at the working population level, especially for low-back pain. In this cross-sectional study, physical job demands and job autonomy explained a substantial proportion of occupational class inequalities in self-reported musculoskeletal pain in the working population in Oslo. This finding indicates that the workplace may be an important arena for preventive efforts to reduce socioeconomic inequalities in musculoskeletal pain.

  13. Airborne Particulate Matter in Two Multi-Family Green Buildings: Concentrations and Effect of Ventilation and Occupant Behavior

    PubMed Central

    Patton, Allison P.; Calderon, Leonardo; Xiong, Youyou; Wang, Zuocheng; Senick, Jennifer; Sorensen Allacci, MaryAnn; Plotnik, Deborah; Wener, Richard; Andrews, Clinton J.; Krogmann, Uta; Mainelis, Gediminas

    2016-01-01

    There are limited data on air quality parameters, including airborne particulate matter (PM) in residential green buildings, which are increasing in prevalence. Exposure to PM is associated with cardiovascular and pulmonary diseases, and since Americans spend almost 90% of their time indoors, residential exposures may substantially contribute to overall airborne PM exposure. Our objectives were to: (1) measure various PM fractions longitudinally in apartments in multi-family green buildings with natural (Building E) and mechanical (Building L) ventilation; (2) compare indoor and outdoor PM mass concentrations and their ratios (I/O) in these buildings, taking into account the effects of occupant behavior; and (3) evaluate the effect of green building designs and operations on indoor PM. We evaluated effects of ventilation, occupant behaviors, and overall building design on PM mass concentrations and I/O. Median PMTOTAL was higher in Building E (56 µg/m3) than in Building L (37 µg/m3); I/O was higher in Building E (1.3–2.0) than in Building L (0.5–0.8) for all particle size fractions. Our data show that the building design and occupant behaviors that either produce or dilute indoor PM (e.g., ventilation systems, combustion sources, and window operation) are important factors affecting residents’ exposure to PM in residential green buildings. PMID:26805862

  14. Airborne Particulate Matter in Two Multi-Family Green Buildings: Concentrations and Effect of Ventilation and Occupant Behavior.

    PubMed

    Patton, Allison P; Calderon, Leonardo; Xiong, Youyou; Wang, Zuocheng; Senick, Jennifer; Sorensen Allacci, MaryAnn; Plotnik, Deborah; Wener, Richard; Andrews, Clinton J; Krogmann, Uta; Mainelis, Gediminas

    2016-01-20

    There are limited data on air quality parameters, including airborne particulate matter (PM) in residential green buildings, which are increasing in prevalence. Exposure to PM is associated with cardiovascular and pulmonary diseases, and since Americans spend almost 90% of their time indoors, residential exposures may substantially contribute to overall airborne PM exposure. Our objectives were to: (1) measure various PM fractions longitudinally in apartments in multi-family green buildings with natural (Building E) and mechanical (Building L) ventilation; (2) compare indoor and outdoor PM mass concentrations and their ratios (I/O) in these buildings, taking into account the effects of occupant behavior; and (3) evaluate the effect of green building designs and operations on indoor PM. We evaluated effects of ventilation, occupant behaviors, and overall building design on PM mass concentrations and I/O. Median PMTOTAL was higher in Building E (56 µg/m³) than in Building L (37 µg/m³); I/O was higher in Building E (1.3-2.0) than in Building L (0.5-0.8) for all particle size fractions. Our data show that the building design and occupant behaviors that either produce or dilute indoor PM (e.g., ventilation systems, combustion sources, and window operation) are important factors affecting residents' exposure to PM in residential green buildings.

  15. Modeling Single Occupant Vehicle Behavior in High-Occupancy Toll (HOT) Facilities

    DOT National Transportation Integrated Search

    2009-12-14

    High-occupancy toll (HOT) lanes are in operation, under construction, and planned for in several major metropolitan areas. The premise behind HOT lanes is to allow single occupant vehicles (SOVs) to access high occupancy vehicle (HOV) lanes (and theo...

  16. Exposure to volatile organic compounds in healthcare settings

    PubMed Central

    LeBouf, Ryan F; Virji, M Abbas; Saito, Rena; Henneberger, Paul K; Simcox, Nancy; Stefaniak, Aleksandr B

    2015-01-01

    Objectives To identify and summarise volatile organic compound (VOC) exposure profiles of healthcare occupations. Methods Personal (n=143) and mobile area (n=207) evacuated canisters were collected and analysed by a gas chromatograph/mass spectrometer to assess exposures to 14 VOCs among 14 healthcare occupations in five hospitals. Participants were volunteers identified by their supervisors. Summary statistics were calculated by occupation. Principal component analysis (PCA) was used to reduce the 14 analyte inputs to five orthogonal factors and identify occupations that were associated with these factors. Linear regressions were used to assess the association between personal and mobile area samples. Results Exposure profiles differed among occupations; ethanol had the highest geometric mean (GM) among nursing assistants (~4900 and ~1900 μg/m3, personal and area), and 2-propanol had the highest GM among medical equipment preparers (~4600 and ~2000 μg/m3, personal and area). The highest total personal VOC exposures were among nursing assistants (~9200 μg/m3), licensed practical nurses (~8700 μg/m3) and medical equipment preparers (~7900 μg/m3). The influence of the PCA factors developed from personal exposure estimates varied by occupation, which enabled a comparative assessment of occupations. For example, factor 1, indicative of solvent use, was positively correlated with clinical laboratory and floor stripping/waxing occupations and tasks. Overall, a significant correlation was observed (r=0.88) between matched personal and mobile area samples, but varied considerably by analyte (r=0.23–0.64). Conclusions Healthcare workers are exposed to a variety of chemicals that vary with the activities and products used during activities. These VOC profiles are useful for estimating exposures for occupational hazard ranking for industrial hygienists as well as epidemiological studies. PMID:25011549

  17. Occupational Analysis: A Basis for Curriculum Development and Evaluation.

    ERIC Educational Resources Information Center

    Mehallis, Mantha Vlahos; Fair, Kerry-Lyn

    In an effort to develop curricula to meet the occupational training needs identified in a 1978 survey of area business leaders, Broward Community College (BCC) undertook a research project designed to: (1) determine the occupational areas that were in greatest need of vocational training programs; (2) identify the job-level competencies for the…

  18. HOSA Competitive Event Guidelines. Health Occupations Students of America. Students with Special Needs.

    ERIC Educational Resources Information Center

    Candelori, Elaine M.; And Others

    Designed for use by instructors and advisors of handicapped students, this guide presents guidelines for judging the performance of special needs students in Health Occupations Students of America (HOSA) competetive events in eight allied health occupations education areas. These areas are dietetics, first aid, hospitality, housekeeping, job…

  19. Service Area Market Analysis: Focus on Industry and Occupation.

    ERIC Educational Resources Information Center

    Front Range Community Coll., Westminster, CO.

    This report presents occupation and industry data (statewide and service area specific) for the purpose of assessing external forces in order to provide information to help guide policymaking at Front Range Community College. The report contains tables that display statewide occupational trends as published by the Colorado Department of Labor and…

  20. 78 FR 56235 - Safety and Occupational Health Study Section (SOHSS), National Institute for Occupational Safety...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-12

    ... delivery of occupational safety and health services, and the prevention of work-related injury and illness... Occupational Health Study Section (SOHSS), National Institute for Occupational Safety and Health (NIOSH or... occupational safety and health, and allied areas. It is the intent of NIOSH to support broad-based research...

  1. 75 FR 56549 - National Institute for Occupational Safety and Health (NIOSH), Safety and Occupational Health...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-16

    ... Institute for Occupational Safety and Health (NIOSH), Safety and Occupational Health Study Section (SOHSS...-1403. Purpose: The Safety and Occupational Health Study Section will review, discuss, and evaluate... pertaining to research issues in occupational safety and health, and allied areas. It is the intent of NIOSH...

  2. 77 FR 75633 - Safety and Occupational Health Study Section (SOHSS), National Institute for Occupational Safety...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-21

    ... Occupational Health Study Section (SOHSS), National Institute for Occupational Safety and Health (NIOSH) In... Public Law 92-463. Purpose: The Safety and Occupational Health Study Section will review, discuss, and... cycles pertaining to research issues in occupational safety and health, and allied areas. It is the...

  3. 75 FR 26266 - Safety and Occupational Health Study Section (SOHSS), National Institute for Occupational Safety...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-11

    ... Occupational Health Study Section (SOHSS), National Institute for Occupational Safety and Health (NIOSH) In...) Public Law 92-463. Purpose: The Safety and Occupational Health Study Section will review, discuss, and... cycles pertaining to research issues in occupational safety and health, and allied areas. It is the...

  4. 78 FR 24751 - Safety and Occupational Health Study Section (SOHSS), National Institute for Occupational Safety...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ... improvements in the delivery of occupational safety and health services, and the prevention of work-related... Occupational Health Study Section (SOHSS), National Institute for Occupational Safety and Health (NIOSH or... issues in occupational safety and health, and allied areas. It is the intent of NIOSH to support broad...

  5. Review of Occupational Therapy Intervention Research in the Practice Area of Children and Youth 2009–2013

    PubMed Central

    Bendixen, Roxanna M.; Huang, Yu Yun; Lim, Yoonjeong

    2014-01-01

    PURPOSE. We conducted a systematic review examining the extent to which pediatric intervention research recently published in the American Journal of Occupational Therapy reflects occupational therapy’s holistic occupation-based tenets. METHOD. We surveyed 10 systematic reviews and analyzed 38 single effectiveness studies for intervention approach, type, level of environmental targeting, level of occupational task and participation practice, and measures used. RESULTS. Of the 38 single effectiveness studies, 12 (32%) explicitly incorporated both environmental targets of intervention and practice of complex or in vivo occupational tasks, with steady increases during the 2009–2013 time frame. CONCLUSION. In the area of children and youth, occupational therapy is making steady gains in reflecting and demonstrating the effectiveness of the profession’s holistic, occupation-based tenets. Occupational therapy researchers must be mindful to ensure that despite the reductionist nature of intervention research, interventions reflect the profession’s holistic understanding of the interplay between the child, environment, and occupations. PMID:24581415

  6. [Utilization of Occupational Therapy in Children - Results from the KiGGS Basis Survey].

    PubMed

    Weber, A; Karch, D; Thyen, U; Rommel, A; Schlack, R; Hölling, H; von Kries, R

    2016-03-01

    A population-based analysis on use of occupational therapy by child's parentally reported health restrictions and socio-demographic determinants is missing. The basis KiGGS survey (2003 to 2006) reports on health in 17 641 children aged 0 to 17 years. The use of occupational therapy in the last 12 months could be ticked as other therapies with a free text field to name occupational therapy or others. Health restrictions potentially relevant for the use of occupational therapy and sociodemographic factors were assessed. The proportion of use of occupational therapy explained by the health restrictions was estimated by the population attributable risk fraction. The average use of occupational therapy for 3 to 13-year-olds was 2.4%. There was no association with the socioeconomic status; Children with immigration background used occupational therapy less often (e. g. age group 3 to 6 years: ORadjusted 0.2 [95-% KI: 0.1-1.0]). The proportion of occupational therapy explainable by the health restrictions considered ranged from 45% (3 to 6 years) to 65% (11 to 13 years). The lower use of occupational therapy in the KiGGS survey compared to health insurance reports may be explained by the ascertainment method. A lower use of occupational therapy related to immigration background matches lower use for physician visits. The causes for the low proportion of explained occupational therapy in young children and the lower use in children with immigration background warrant further research. © Georg Thieme Verlag KG Stuttgart · New York.

  7. Occupational Differences between Hispanics and Non-Hispanics. A Rand Note.

    ERIC Educational Resources Information Center

    Stolzenberg, Ross M.

    A study examined the occupational differences between Hispanics and non-Hispanics. The study focused on the determinants of Hispanic occupational achievement; differences in the process of occupational achievement among different Hispanic ethnic subgroups; variations in the process of occupational achievement across geographic areas; and…

  8. Occupational Listings Arranged by Cluster and Subject Matter Areas.

    ERIC Educational Resources Information Center

    Schwarz, Otto

    Approximately 850 occupations are listed under 27 occupational clusters. The Dictionary of Occupational Title (DOT) number is specified for occupations in the clusters of business training and distributive education, chemistry, general shop and industrial arts, home economics, foreign language, music, social studies, art, agriculture, physics, and…

  9. Occupational safety and health: progress toward the 1990 objectives for the nation.

    PubMed Central

    Millar, J D; Myers, M L

    1983-01-01

    Occupational safety and health is 1 of 15 areas addressed in the Public Health Service's Objectives for the Nation. This area represents 104 million working men and women and the deaths, diseases, and injuries that result from exposures to hazards in their work environment. Characteristics of public health practice are compared with characteristics of occupational safety and health practice. The National Institute for Occupational Safety and Health (NIOSH), created by the Occupational Safety and Health Act, is discussed. NIOSH has developed a list of 10 leading work-related diseases and injuries. The list is headed by occupational lung diseases. Twenty Objectives for the Nation in the area of occupational safety and health are reviewed, and the status of NIOSH efforts toward their attainment is discussed. Five categories of objectives are covered: (a) improved health status, (b) reduced risk factors, (c) improved public and professional awareness, (d) improved service and protection, and (e) improved surveillance and evaluation. The potential for achieving these objectives is discussed, with special attention given to the lack of a data base for monitoring progress. A major conclusion is that surveillance in occupational safety and health needs to be strengthened. PMID:6310668

  10. Presence-nonpresence surveys of golden-cheeked warblers: detection, occupancy and survey effort

    USGS Publications Warehouse

    Watson, C.A.; Weckerly, F.W.; Hatfield, J.S.; Farquhar, C.C.; Williamson, P.S.

    2008-01-01

    Surveys to detect the presence or absence of endangered species may not consistently cover an area, account for imperfect detection or consider that detection and species presence at sample units may change within a survey season. We evaluated a detection?nondetection survey method for the federally endangered golden-cheeked warbler (GCWA) Dendroica chrysoparia. Three study areas were selected across the breeding range of GCWA in central Texas. Within each area, 28-36 detection stations were placed 200 m apart. Each detection station was surveyed nine times during the breeding season in 2 consecutive years. Surveyors remained up to 8 min at each detection station recording GCWA detected by sight or sound. To assess the potential influence of environmental covariates (e.g. slope, aspect, canopy cover, study area) on detection and occupancy and possible changes in occupancy and detection probabilities within breeding seasons, 30 models were analyzed. Using information-theoretic model selection procedures, we found that detection probabilities and occupancy varied among study areas and within breeding seasons. Detection probabilities ranged from 0.20 to 0.80 and occupancy ranged from 0.56 to 0.95. Because study areas with high detection probabilities had high occupancy, a conservative survey effort (erred towards too much surveying) was estimated using the lowest detection probability. We determined that nine surveys of 35 stations were needed to have estimates of occupancy with coefficients of variation <20%. Our survey evaluation evidently captured the key environmental variable that influenced bird detection (GCWA density) and accommodated the changes in GCWA distribution throughout the breeding season.

  11. Task Analysis for Health Occupations. Cluster: Medical Assisting. Occupation: Medical Assistant. Education for Employment Task Lists.

    ERIC Educational Resources Information Center

    Lathrop, Janice

    Task analyses are provided for two duty areas for the occupation of medical assistant in the medical assisting cluster. Five tasks for the duty area "providing therapeutic measures" are as follows: assist with dressing change, apply clean dressing, apply elastic bandage, assist physician in therapeutic procedure, and apply topical…

  12. OUTLOOK BY DENVER AREA OCCUPATIONS. OCCUPATIONS IN COLORADO, PART II.

    ERIC Educational Resources Information Center

    Colorado State Univ., Ft. Collins.

    EMPLOYMENT STATISTICS FOR 1960, ESTIMATED EMPLOYMENT FOR 1965 AND 1970, ESTIMATES OF ADDITIONAL WORKERS NEEDED BY 1970, AND SALARY INFORMATION ARE PROVIDED FOR A WIDE RANGE OF OCCUPATIONS IN THE DENVER AREA. DATA WERE OBTAINED FROM A DENVER STUDY, "JOBS AND THE FUTURE," BY ROBERT VAUGHAN OF THE MOUNTAIN STATES TELEPHONE CO., 1962, AND…

  13. METHODOLOGY FOR PROJECTION OF OCCUPATIONAL TRENDS IN THE DENVER STANDARD METROPOLITAN STATISTICAL AREA.

    ERIC Educational Resources Information Center

    FISHMAN, LESLIE; AND OTHERS

    THE FINAL STAGE OF A PROGRAM FOR ACHIEVING A BALANCE BETWEEN THE AGGREGATE SUPPLY AND DEMAND FOR LABOR IS THE DISTRIBUTION OF THE INDUSTRY EMPLOYMENT ESTIMATES INTO OCCUPATIONAL REQUIREMENTS BASED ON PROJECTIONS OF OCCUPATIONAL PATTERNS BY INDUSTRY. THIS CAN BE USED TO EVALUATE POTENTIAL AREAS OF SUBSTANTIAL SURPLUS OR SHORTAGE, AND PROVIDE THE…

  14. Consensus statements on occupational therapy education and professional development related to driving and community mobility.

    PubMed

    Stav, Wendy B

    2014-04-01

    Professional and postprofessional education for occupational therapy practitioners in the area of driving and community mobility has been inconsistent and not sufficient to meet the growing community mobility needs of the aging population. This article reviews the current expectations of entry-level occupational therapy education, the postprofessional credentialing opportunities, and the professional development path for occupational therapy practitioners. Finally, consensus statements are presented to move both entry-level and professional education forward in the area of driving and community mobility.

  15. Burrow Occupancy Patterns of the Western Burrowing Owl in Southern Nevada

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Paul D. Greger and Derek B. Hall

    Understanding long-term patterns of burrow occupancy for the Western Burrowing Owl (Athene cunicularia hypugaea) is necessary for the conservation of this species, especially in arid, desert ecosystems where burrow occupancy data are lacking. Monthly burrow monitoring was conducted over a 4-year period (1997–2001) in southern Nevada to determine burrow occupancy patterns of Burrowing Owls and to evaluate the effects of burrow type and desert region on burrow occupancy. Burrow occupancy occurred year-round and was most consistent in the Transition region and tended to be lowest in the Mojave Desert region. Peak burrow occupancy occurred during March through May, followed bymore » a gradual decline in occupancy through the summer and fall until January and February, when occupancy was lowest. Occupancy was significantly higher at sites with both culvert and pipe burrows than at sites with earthen burrows in disturbed habitat or earthen burrows in natural habitat. Breeding-season occupancy was not significantly higher in wetter, cooler portions (e.g., Great Basin desert region) of the study area. Results suggest that occupancy is influenced by habitat features—such as suitable burrows in open areas with low vegetation—and climatic regime.« less

  16. Marketing occupational health care.

    PubMed

    Norris, M J; Harris, J C

    1981-01-01

    A very basic part of marketing success is determining areas of your business in which you have a competitive advantage. In drafting a marketing plan for the Denver Clinic, the competitive advantages group practices have in the area of occupational health were quickly realized. This competitive edge is presented along with the Denver Clinic's marketing strategies and plans to capitalize on occupational healthcare advantages.

  17. Task Analysis for Health Occupations. Cluster: Rehabilitation Services. Occupation: Physical Therapist Assistant. Education for Employment Task Lists.

    ERIC Educational Resources Information Center

    Lathrop, Janice

    Task analyses are provided for two duty areas for the occupation of physical therapist assistant in the rehabilitation services cluster. Ten tasks are listed for the duty area "providing therapeutic measures": apply cold compress, administer hot soak, apply heat lamp, apply warm compress, apply ice bag, assist with dressing change, apply…

  18. The burden of mortality with costs in productivity loss from occupational cancer in Italy.

    PubMed

    Binazzi, Alessandra; Scarselli, Alberto; Marinaccio, Alessandro

    2013-11-01

    The costs of productivity loss due to occupational cancer mortality are rarely investigated. An estimate of occupational cancer deaths in Italy in 2006 and an approximation of the resultant costs from medical and non-medical expenditures together with figures of remuneration lost are provided. Occupational cancer deaths, obtained from the application of the attributable fraction (AF) to mortality data (source: Italian National Institute of Statistics), were used to calculate the Potential Years of Life Lost (PYLLs), the Potential Years of Working Life Lost (PYWLLs) and the costs of the loss of productive life. The health care costs for any cancer was applied to the estimated number of occupational cancer cases to obtain the total cost. Around 8,000-8,500 deaths/year from occupational cancer are estimated to occur in Italy, corresponding to 170,000 PYLLs and more than 16,000 PYWLLs, leading to around 360,000,000 euros in indirect economic loss. Health care costs of occupational cancer are estimated at 456,000,000 euros. Occupational cancer is of major concern in terms of mortality and economic productivity loss. Preventive efforts in evaluating ongoing risks and current exposures are strongly recommended to health policy-makers. Copyright © 2013 Wiley Periodicals, Inc.

  19. Jobs for Which Junior College, Technical Institute, or Other Specialized Training Is Usually Required.

    ERIC Educational Resources Information Center

    Bureau of Labor Statistics (DOL), Washington, DC.

    Selected from the "Occupational Outlook Handbook," the listings included in this document represent a number of occupations for which junior college or other special training is useful. Each listing, grouped under a broader occupational area, provides a specific occupational title, number employed in the occupation in 1974, qualifications and…

  20. [Atherogenic indices in workers of different occupational sectors of the Spanish Mediterranean area].

    PubMed

    López González, Ángel Arturo; Rivero Ledo, Yarianne Inalvis; Vicente Herrero, M Teófila; Gil Llinás, María; Tomás Salvá, Matías; Riutord Fe, Bartomeu

    2015-01-01

    Atherogenic indices predict cardiovascular disease, as they provide a good reflection of the clinical and metabolic interactions of lipid fractions. A descriptive cross-sectional study was conducted on 60,798 workers in the Spanish Mediterranean area on whom different atherogenic indices (cholesterol/HDL, LDL/HDL, triglycerides/HDL) were determined, and the influence they have in the different productive work sectors. In women, the mean values of the different atherogenic indices are better in the health sector, while they are better in men in the primary sector. The percentage of working women with low values is also greater in the healthcare sector, while in men there is no clear predominant sector, with the best values being shown in the hospitality and primary sector. The distribution of cardiovascular risk factors and the values of the different atherogenic indices analyzed vary in different industrial sectors. Copyright © 2014 Sociedad Española de Arteriosclerosis. Published by Elsevier España. All rights reserved.

  1. [Evolution of technology and occupational exposures in petrochemical industry and in petroleum refining].

    PubMed

    Cottica, Danilo; Grignani, Elena

    2013-01-01

    The industry of oil refining and petrochemical play an important role in terms of number of employees in the Italian production. Often the terms "petroleum refining" and "petrochemical" are used interchangeably to define processes that occur in complex plants, which grow outdoors on large surfaces and a visual impact is not irrelevant. In reality, the two areas involve potential exposure to different chemical agents, related to raw materials processed and the specific products. The petrochemical uses as raw materials, the oil fractions, obtained by distillation in the refinery, or natural gas; petrochemical products are, usually, single compounds with a specific degree of purity, used as basic raw materials for the entire industry of organic chemistry, from the production of plastics to pharmaceuticals. The oil refining, that is the topic of this paper, processes mainly oil to obtain mixtures of hydrocarbon compounds, the products of which are specified on the basis of aptitude for use. For example gasolines, are obtained by mixing of fractions of the first distillation, reforming products, antiknock. The paper illustrates, necessarily broadly due to the complexity of the productive sectors, the technological and organizational changes that have led to a significant reduction of occupational exposure to chemical agents, the results of environmental monitoring carried out in some refineries both during routine conditions that during scheduled maintenance activities with plant shutdown and a store of petroleum products. The chemical agents measured are typical for presence, physico-chemical properties and toxicological characteristics of the manufacturing processes of petroleum products like benzene, toluene, xylenes, ethyl benzene, n-hexane, Volatile Hydrocarbons belonging to gasoline, kerosene, diesel fuel. Data related to both personal sampling and fixed positions.

  2. [Health hazards resulting from exposure to zinc and its inorganic compounds in industry].

    PubMed

    Pakulska, Daria; Czerczak, Sławomir

    2017-10-17

    This article deals with health risks resulting from exposure to zinc and its inorganic compounds in industry. The main source of zinc exposure are fumes generated during thermal and chemical processes, mainly zinc oxide fume formed by immediate oxidation of metallic zinc vapor formed during high-temperature processes, as well as dust generated during the mechanical processing of zinc-containing materials. It is recognized that zinc ions are responsible for health effects of exposure to dust/fumes of the majority of zinc compounds, and the final effect of exposure depends on the degree of dispersion of dusts/fumes suspended in the air. Since the effects of exposure depends on the particle size, occupational exposure limits have began to be established separately for respirable and inhalable fractions. A critical effect of acute exposure to respirable fraction is a "fume fever" which in chronic exposure occurs as an effect associated with recurrent symptoms of acute poisoning. Impaired lung function and asthma symptoms are considered to be the main effects of exposure to inhalable fraction. Due to the limited number of the available data it is not possible to assess carcinogenicity, reproductive toxicity and teratogenicity of zinc and its compounds. The aim of the study was to analyze the major health hazards resulting from occupational exposure to zinc and its inorganic compounds in the context of their physico-chemical properties, a wide range of applications and occupational exposure data. Med Pr 2017;68(6):779-794. This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.

  3. Small proportions of actively-smoking patrons and high PM2.5 levels in southern California tribal casinos: support for smoking bans or designated smoking areas

    PubMed Central

    2012-01-01

    Background Nearly all California casinos currently allow smoking, which leads to potentially high patron exposure to secondhand tobacco smoke pollutants. Some argue that smoking restrictions or bans would result in a business drop, assuming > 50% of patrons smoke. Evidence in Nevada and responses from the 2008 California tobacco survey refute this assertion. The present study investigates the proportion of active smokers in southern California tribal casinos, as well as occupancy and PM2.5 levels in smoking and nonsmoking sections. Methods We measured active-smoker and total-patron counts during Friday or Saturday night visits (two per casino) to smoking and nonsmoking gaming areas inside 11 southern California casinos. We counted slot machines and table games in each section, deriving theoretical maximum capacities and occupancy rates. We also measured PM2.5 concentrations (or used published levels) in both nonsmoking and smoking areas. Results Excluding one casino visit with extremely high occupancy, we counted 24,970 patrons during 21 casino visits of whom 1,737 were actively smoking, for an overall active- smoker proportion of 7.0% and a small range of ~5% across casino visits (minimum of 5% and maximum of 10%). The differences in mean inter-casino active-smoker proportions were not statistically significant. Derived occupancy rates were 24% to 215% in the main (low-stakes) smoking-allowed slot or table areas. No relationship was found between observed active-smoker proportions and occupancy rate. The derived maximum capacities of nonsmoking areas were 1% to 29% of the overall casino capacity (most under 10%) and their observed occupancies were 0.1 to over 3 times that of the main smoking-allowed casino areas. Seven of twelve visits to nonsmoking areas with no separation had occupancy rates greater than main smoking areas. Unenclosed nonsmoking areas don’t substantially protect occupants from PM2.5 exposure. Nonsmoking areas encapsulated inside smoking areas or in a separate, but unenclosed, area had PM2.5 levels that were 10 to 60 μg/m3 and 6 to 23 μg/m3 higher than outdoor levels, respectively, indicating contamination from smoking. Conclusions Although fewer than roughly 10% of casino patrons are actively smoking on average, these individuals substantially increase PM2.5 exposure for all patrons in smoking and unenclosed nonsmoking areas. Nonsmoking areas may be too inconvenient, small, or undesirable to serve a substantial number of nonsmoking patrons. Imposing indoor smoking bans, or contained smoking areas with a maximum capacity of up to 10% of the total patronage, would offer protection from PM2.5 exposures for nonsmoking patrons and reduce employee exposures. PMID:22998850

  4. Small proportions of actively-smoking patrons and high PM2.5 levels in southern California tribal casinos: support for smoking bans or designated smoking areas.

    PubMed

    Klepeis, Neil E; Omoto, Jason; Ong, Seow Ling; Omoto, Harmeena Sahota; Dhaliwal, Narinder

    2012-09-22

    Nearly all California casinos currently allow smoking, which leads to potentially high patron exposure to secondhand tobacco smoke pollutants. Some argue that smoking restrictions or bans would result in a business drop, assuming > 50% of patrons smoke. Evidence in Nevada and responses from the 2008 California tobacco survey refute this assertion. The present study investigates the proportion of active smokers in southern California tribal casinos, as well as occupancy and PM(2.5) levels in smoking and nonsmoking sections. We measured active-smoker and total-patron counts during Friday or Saturday night visits (two per casino) to smoking and nonsmoking gaming areas inside 11 southern California casinos. We counted slot machines and table games in each section, deriving theoretical maximum capacities and occupancy rates. We also measured PM(2.5) concentrations (or used published levels) in both nonsmoking and smoking areas. Excluding one casino visit with extremely high occupancy, we counted 24,970 patrons during 21 casino visits of whom 1,737 were actively smoking, for an overall active- smoker proportion of 7.0% and a small range of ~5% across casino visits (minimum of 5% and maximum of 10%). The differences in mean inter-casino active-smoker proportions were not statistically significant. Derived occupancy rates were 24% to 215% in the main (low-stakes) smoking-allowed slot or table areas. No relationship was found between observed active-smoker proportions and occupancy rate. The derived maximum capacities of nonsmoking areas were 1% to 29% of the overall casino capacity (most under 10%) and their observed occupancies were 0.1 to over 3 times that of the main smoking-allowed casino areas. Seven of twelve visits to nonsmoking areas with no separation had occupancy rates greater than main smoking areas. Unenclosed nonsmoking areas don't substantially protect occupants from PM2.5 exposure. Nonsmoking areas encapsulated inside smoking areas or in a separate, but unenclosed, area had PM(2.5) levels that were 10 to 60 μg/m(3) and 6 to 23 μg/m(3) higher than outdoor levels, respectively, indicating contamination from smoking. Although fewer than roughly 10% of casino patrons are actively smoking on average, these individuals substantially increase PM(2.5) exposure for all patrons in smoking and unenclosed nonsmoking areas. Nonsmoking areas may be too inconvenient, small, or undesirable to serve a substantial number of nonsmoking patrons. Imposing indoor smoking bans, or contained smoking areas with a maximum capacity of up to 10% of the total patronage, would offer protection from PM2.5 exposures for nonsmoking patrons and reduce employee exposures.

  5. Testing the coherence between occupational exposure limits for inhalation and their biological limit values with a generalized PBPK-model: the case of 2-propanol and acetone.

    PubMed

    Huizer, Daan; Huijbregts, Mark A J; van Rooij, Joost G M; Ragas, Ad M J

    2014-08-01

    The coherence between occupational exposure limits (OELs) and their corresponding biological limit values (BLVs) was evaluated for 2-propanol and acetone. A generic human PBPK model was used to predict internal concentrations after inhalation exposure at the level of the OEL. The fraction of workers with predicted internal concentrations lower than the BLV, i.e. the 'false negatives', was taken as a measure for incoherence. The impact of variability and uncertainty in input parameters was separated by means of nested Monte Carlo simulation. Depending on the exposure scenario considered, the median fraction of the population for which the limit values were incoherent ranged from 2% to 45%. Parameter importance analysis showed that body weight was the main factor contributing to interindividual variability in blood and urine concentrations and that the metabolic parameters Vmax and Km were the most important sources of uncertainty. This study demonstrates that the OELs and BLVs for 2-propanol and acetone are not fully coherent, i.e. enforcement of BLVs may result in OELs being violated. In order to assess the acceptability of this "incoherence", a maximum population fraction at risk of exceeding the OEL should be specified as well as a minimum level of certainty in predicting this fraction. Copyright © 2014 Elsevier Inc. All rights reserved.

  6. Attributable risk of carpal tunnel syndrome according to industry and occupation in a general population.

    PubMed

    Roquelaure, Yves; Ha, Catherine; Nicolas, Guillaume; Pélier-Cady, Marie-Christine; Mariot, Camille; Descatha, Alexis; Leclerc, Annette; Raimbeau, Guy; Goldberg, Marcel; Imbernon, Ellen

    2008-09-15

    An epidemiologic surveillance network for carpal tunnel syndrome (CTS) was set up in the general population of a French region to assess the proportion of CTS cases attributable to work in high-risk industries and occupations. Cases of CTS occurring among patients ages 20-59 years living in the Maine and Loire region were included prospectively from 2002 to 2004. Medical and occupation history was gathered by mailed questionnaire for 815 women and 320 men. Age-adjusted relative risks of CTS and the attributable risk fractions of CTS among exposed persons (AFEs) were computed in relation to industry sectors and occupation categories. Twenty-one industry sectors and 8 occupational categories for women and 10 sectors and 6 occupational categories for men were characterized by a significant excess risk of CTS. High AFE values were observed in the manufacturing (42-93% for both sexes), construction (66% for men), and personal service industries (66% for women) and in the trade and commerce sectors (49% for women). High AFE values were observed in lower-grade white-collar occupations for women (43-67%) and blue-collar occupations for men (60-74%) and women (48-88%). The attributable proportions of CTS cases among workers employed in industry sectors and occupation categories identified at high risk of CTS varied between 36% and 93%.

  7. Human disturbance and stage-specific habitat requirements influence snowy plover site occupancy during the breeding season

    PubMed Central

    Webber, Alyson F; Heath, Julie A; Fischer, Richard A

    2013-01-01

    Habitat use has important consequences for avian reproductive success and survival. In coastal areas with recreational activity, human disturbance may limit use of otherwise suitable habitat. Snowy plovers Charadrius nivosus have a patchy breeding distribution along the coastal areas on the Florida Panhandle, USA. Our goal was to determine the relative effects of seasonal human disturbance and habitat requirements on snowy plover habitat use. We surveyed 303 sites for snowy plovers, human disturbance, and habitat features between January and July 2009 and 2010. We made multiple visits during three different sampling periods that corresponded to snowy plover breeding: pre-breeding, incubation, and brood-rearing and used multi-season occupancy models to examine whether human disturbance, habitat features, or both influenced site occupancy, colonization (probability of transition from an unoccupied site to an occupied site), and extinction (probability of transition from an occupied site to an unoccupied site). Snowy plover site occupancy and colonization was negatively associated with human disturbance and site extinction was positively associated with human disturbance. Interdune vegetation had a negative effect on occupancy and colonization, indicating that plovers were less likely to use areas with uniform, dense vegetation among dunes. Also, dune shape, beach debris, and access to low-energy foraging areas influenced site occupancy, colonization, and extinction. Plovers used habitat based on beach characteristics that provided stage-specific resource needs; however, human disturbance was the strongest predictor of site occupancy. In addition, vegetation plantings used to enhance dune rehabilitation may negatively impact plover site occupancy. Management actions that decrease human disturbance, such as symbolic fencing and signage, may increase the amount of breeding habitat available to snowy plovers on the Florida Panhandle and in other areas with high human activity. The specific areas that require this protection may vary across snowy plover life history stages. PMID:23610630

  8. Occupation-Based Intervention for Addictive Disorders: A Systematic Review.

    PubMed

    Wasmuth, Sally; Pritchard, Kevin; Kaneshiro, Kellie

    2016-03-01

    Addictive disorders disrupt individuals' occupational lives, suggesting that occupational therapists can play a crucial role in addiction rehabilitation. Occupation-based interventions are those in which an occupation is performed, and occupations are defined as those activities a person engages in to structure time and create meaning in one's life. This review asked: In persons with addictive disorders, are occupation-based interventions more effective than treatment as usual in improving short and long-term recovery outcomes? A systematic literature search was performed by a medical librarian in Ovid MEDLINE, PsychINFO, Social Work Abstracts, OTSeeker, HealthSTAR, CINAHL, and ACPJournalClub. Authors screened 1095 articles for inclusion criteria (prospective outcome studies examining the effectiveness of an occupation-based intervention with a sample primarily consisting of a diagnosis of a substance-related or addictive disorder and with at least five participants), and two authors appraised the resulting 66 articles using a standard appraisal tool, yielding 26 articles for qualitative synthesis and 8 with shared outcome measures for quantitative analysis. Occupation-based interventions in the areas of work, leisure, and social participation were found to have been used to treat addictive disorders. Occupation-based interventions in the area of social participation all elicited better outcomes than their respective control/comparison groups. Not all occupation-based interventions in the area of leisure elicited better outcomes than their comparison group, but in the eight articles with shared outcome measures, quantitative analysis demonstrated leisure interventions produced larger effect sizes than social participation interventions. Copyright © 2015 Elsevier Inc. All rights reserved.

  9. The burden of occupationally-related cutaneous malignant melanoma in Britain due to solar radiation.

    PubMed

    Rushton, Lesley; J Hutchings, Sally

    2017-02-14

    Increasing evidence highlights the association of occupational exposure and cutaneous malignant melanoma (CMM). We estimated the burden of CMM and total skin cancer burden in Britain due to occupational solar radiation exposure. Attributable fractions (AF) and numbers were estimated for CMM mortality and incidence using risk estimates from the published literature and national data sources for proportions exposed. We extended existing methods to account for the exposed population age structure. The estimated total AF for CMM is 2.0% (95% CI: 1.4-2.7%), giving 48 (95% CI: 33-64) deaths in (2012) and 241 (95% CI: 168-325) registrations (in 2011) attributable to occupational exposure to solar radiation. Higher exposure and larger numbers exposed led to much higher numbers for men than women. Industries of concern are construction, agriculture, public administration and defence, and land transport. These results emphasise the urgent need to develop appropriate strategies to reduce this burden.

  10. Hearing difficulty attributable to employment by industry and occupation: an analysis of the National Health Interview Survey--United States, 1997 to 2003.

    PubMed

    Tak, SangWoo; Calvert, Geoffrey M

    2008-01-01

    To estimate the national burden of hearing difficulty among workers in US industries and occupations. Data on 130,102 employed National Health Interview Survey respondents between the ages of 18 to 65 years who were interviewed between 1997 and 2003 were analyzed to estimate the population prevalence, adjusted prevalence ratios, and fractions of hearing difficulty attributable to employment. The estimated population prevalence of hearing difficulty was 11.4% (24% attributable to employment). The adjusted prevalence ratios of hearing difficulty were highest for railroads, mining, and primary metal manufacturing industry. Occupations with increased risk of hearing difficulty were mechanics/repairers, machine operators, and transportation equipment operators. Hearing difficulty was differentially distributed across various industries. In industries with high rates, employers and workers should take preventive action to reduce the risk of occupational hearing loss.

  11. The Impact of Education and Socioeconomic and Occupational Conditions on Self-Perceived and Mental Health Inequalities Among Immigrants and Native Workers in Spain.

    PubMed

    Cayuela, Ana; Malmusi, Davide; López-Jacob, María José; Gotsens, Mercè; Ronda, Elena

    2015-12-01

    There is limited evidence on the influence of social determinants on the self-perceived and mental health of immigrants settled at least 8 years in Spain. The aim of this study was to examine differences between workers related to migrant-status, self-perceived and mental health, and to assess their relationship to occupational conditions, educational level and occupational social class, stratified by sex. Using data from the Spanish National Health Survey of 2011/12, we computed prevalence, odds ratios and explicative fractions. Mental (OR 2.02; CI 1.39-2.93) and self-perceived health (OR 2.64; CI 1.77-3.93) were poorer for immigrant women compared to natives. Occupational social class variable contributes 25% to self-perceived health OR in immigrant women. Settled immigrant women workers are a vulnerable group in Spain.

  12. 43 CFR 21.6 - Cabin site occupancy where a recreation or conservation area has been leased to, or turned over...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Cabin site occupancy where a recreation or conservation area has been leased to, or turned over to, another Federal or non-Federal public agency for administration. 21.6 Section 21.6 Public Lands: Interior Office of the Secretary of the Interior OCCUPANCY OF...

  13. Summary Report of a Study to Assist in the Development of a Regional Occupational Center System in Tulare and Kings Counties

    ERIC Educational Resources Information Center

    Tadlock, Max; And Others

    A study by Management and Economic Research, Inc. (MERI) of the occupational education in a 2-county area analyzed employer and student needs and existing facilities. To reduce wasteful competition, it recommended a change from local to area planning and the organization of a Regional Occupational Center (ROC) System with subsystems in contiguous…

  14. Spatial occupancy patterns and activity of arid rangeland cattle grazing small riparian pastures.

    PubMed

    Larson, Larry; Johnson, Douglas E; Wilson, Marie; Wilson, Kerry; Louhaichi, Mounir; Williams, John

    2017-03-01

    The spatial occupancy patterns and activity of cattle grazing three riparian pastures was investigated in northeastern Oregon using Global Positioning System (GPS) collars logging at 1-sec intervals. Cattle consistently selected plant communities as grazing areas that had forage in sufficient volume to meet their requirements and favored communities as resting areas that were dry and open. Cattle were stationary for more than 50% of the time in each pasture and consistently rested between dark and 04:00 hours. Interaction with stream channels was found to be 1-2% of total occupancy time and occurred on less than 10% of channel length. Cattle were indifferent or avoided channel areas relative to their area and, when in this zone, they spent most of their time moving not resting. Cattle did not prefer the stream bank zone and spent only 2% of their time in that zone. When occupied, the stream bank zone was used as a travel corridor to gain access to water or cross the channel to access other pasture areas. These results are in contrast with the general belief that cattle are a primary occupant of the stream bank/channel area; additional research is needed to define factors influencing cattle occupancy. © 2016 Japanese Society of Animal Science.

  15. What is occupational therapy’s role in addressing sleep problems among older adults?

    PubMed Central

    Leland, Natalie E.; Marcione, Nicole; Niemiec, Stacey L. Schepens; Don Fogelberg, Kaivalya Kelkar

    2014-01-01

    Sleep problems, prevalent among older adults, are associated with poor outcomes and high healthcare costs. In 2008, rest and sleep became its own area of occupation in the AOTA Occupational Therapy Practice Framework. This scoping review examined a broad context of sleep research in order to highlight efficacious interventions for older adults that fall within the occupational therapy scope of practice and present an agenda for research and practice. Four sleep intervention areas clearly aligned with the Practice Framework, including cognitive behavioral therapy for insomnia, physical activity, and multi-component interventions. Occupational therapy is primed to address sleep problems by targeting the context and environment, performance patterns, and limited engagement in evening activities that may contribute to poor sleep. Occupational therapy researchers and clinicians need to work collaboratively to establish the evidence-base for occupation-centered sleep interventions in order to improve the health and quality of life of the older adult. PMID:24844879

  16. Effectiveness of Occupation-Based Interventions to Improve Areas of Occupation and Social Participation After Stroke: An Evidence-Based Review

    PubMed Central

    Chuh, Adrianna; Floyd, Tracy; McInnis, Karen; Williams, Elizabeth

    2015-01-01

    This evidence-based review examined the evidence supporting the use of occupation-based interventions to improve areas of occupation and social participation poststroke. A total of 39 studies met the inclusion criteria and were critically evaluated. Most of the literature targeted activity of daily living (ADL)–based interventions and collectively provided strong evidence for the use of occupation-based interventions to improve ADL performance. The evidence related to instrumental ADLs was much more disparate, with limited evidence to support the use of virtual reality interventions and emerging evidence to support driver education programs to improve occupational performance poststroke. Only 6 studies addressed leisure, social participation, or rest and sleep, with sufficient evidence to support only leisure-based interventions. The implications of this review for research, education, and practice in occupational therapy are also discussed. PMID:25553745

  17. Innovative Approaches to Health Occupations Education.

    ERIC Educational Resources Information Center

    Gurney, Elizabeth, Comp.; Kintgen, Jean, Comp.

    To improve communications between health occupations educators and health professionals about developments in health occupations education, a compilation of 21 approaches used in health occupations education is presented. Outlines of the 21 different courses are presented, grouped in eight areas: (1) career mobility--modified LPN program for…

  18. [Appraisal of occupational stress and strain in primary and secondary school teachers].

    PubMed

    Wang, Z; Lan, Y; Li, J; Wang, M

    2001-09-01

    This study was conducted to assess occupational stress and strain in primary and secondary school teachers. A test of occupational stress and strain was carried out by using Occupational Stress Inventory Revised Edition (OSI-R) in 1460 primary and secondary school teachers (teacher group) and 319 mental workers in non-educational area (non-teacher group as control). The results showed the level of occupational stress in role overload and physical environment in the teacher group was significantly higher than that in the non-teacher group (P < 0.05). In teacher group the level of occupational stress and strain increased with age; the occupational stress and strain in male teachers were significantly higher than those in female teachers (P < 0.01); the occupational stress and strain in secondary school teachers were significantly higher than those in primary school teachers. These results indicate: to protect and promote primary and secondary school teacher's health, particularly male teachers' health, to mitigate their work pressure and to raise the quality of education are important tasks in the area of occupational health.

  19. Research Education in Undergraduate Occupational Therapy Programs.

    ERIC Educational Resources Information Center

    Petersen, Paul; And Others

    1992-01-01

    Of 63 undergraduate occupational therapy programs surveyed, the 38 responses revealed some common areas covered: elementary descriptive statistics, validity, reliability, and measurement. Areas underrepresented include statistical analysis with or without computers, research design, and advanced statistics. (SK)

  20. Agricultural Occupations Handbook.

    ERIC Educational Resources Information Center

    Lark, Floyd J.; Henderson, Billie

    This agricultural occupations handbook was developed from the Dictionary of Occupational Titles (DOT) and the U.S. Departments of Health, Education, and Welfare, and Labor publication, Vocational Education and Occupations. It includes the U.S. Office of Education coding for the instructional area of agriculture and the cluster coding for the…

  1. A biological decontamination process for small, privately owned buildings.

    PubMed

    Krauter, Paula; Tucker, Mark

    2011-09-01

    An urban wide-area recovery and restoration effort following a large-scale biological release will require extensive resources and tax the capabilities of government authorities. Further, the number of private decontamination contractors available may not be sufficient to respond to the needs. These resource limitations could create the need for decontamination by the building owner/occupant. This article provides owners/occupants with a simple method to decontaminate a building or area following a wide-area release of Bacillus anthracis using liquid sporicidal decontamination materials, such as pH-amended bleach or activated peroxide; simple application devices; and high-efficiency particulate air-filtered vacuums. Owner/occupant decontamination would be recommended only after those charged with overseeing decontamination-the Unified Command/Incident Command-identify buildings and areas appropriate for owner/occupant decontamination based on modeling and environmental sampling and conduct health and safety training for cleanup workers.

  2. Landscape matrix mediates occupancy dynamics of Neotropical avian insectivores

    USGS Publications Warehouse

    Kennedy, Christina M.; Campbell Grant, Evan H.; Neel, Maile C.; Fagan, William F.; Marpa, Peter P.

    2011-01-01

    In addition to patch-level attributes (i.e., area and isolation), the nature of land cover between habitat patches (the matrix) may drive colonization and extinction dynamics in fragmented landscapes. Despite a long-standing recognition of matrix effects in fragmented systems, an understanding of the relative impacts of different types of land cover on patterns and dynamics of species occurrence remains limited. We employed multi-season occupancy models to determine the relative influence of patch area, patch isolation, within-patch vegetation structure, and landscape matrix on occupancy dynamics of nine Neotropical nsectivorous birds in 99 forest patches embedded in four matrix types (agriculture, suburban evelopment, bauxite mining, and forest) in central Jamaica. We found that within-patch vegetation structure and the matrix type between patches were more important than patch area and patch isolation in determining local colonization and local extinction probabilities, and that the effects of patch area, isolation, and vegetation structure on occupancy dynamics tended to be matrix and species dependent. Across the avian community, the landscape matrix influenced local extinction more than local colonization, indicating that extinction processes, rather than movement, likely drive interspecific differences in occupancy dynamics. These findings lend crucial empirical support to the hypothesis that species occupancy dynamics in fragmented systems may depend greatly upon the landscape context.

  3. Content comparison of occupation-based instruments in adult rheumatology and musculoskeletal rehabilitation based on the International Classification of Functioning, Disability and Health.

    PubMed

    Stamm, Tanja A; Cieza, Alarcos; Machold, Klaus P; Smolen, Josef S; Stucki, Gerold

    2004-12-15

    To compare the content of clinical, occupation-based instruments that are used in adult rheumatology and musculoskeletal rehabilitation in occupational therapy based on the International Classification of Functioning, Disability and Health (ICF). Clinical instruments of occupational performance and occupation in adult rehabilitation and rheumatology were identified in a literature search. All items of these instruments were linked to the ICF categories according to 10 linking rules. On the basis of the linking, the content of these instruments was compared and the relationship between the capacity and performance component explored. The following 7 instruments were identified: the Canadian Occupational Performance Measure, the Assessment of Motor and Process Skills, the Sequential Occupational Dexterity Assessment, the Jebson Taylor Hand Function Test, the Moberg Picking Up Test, the Button Test, and the Functional Dexterity Test. The items of the 7 instruments were linked to 53 different ICF categories. Five items could not be linked to the ICF. The areas covered by the 7 occupation-based instruments differ importantly: The main focus of all 7 instruments is on the ICF component activities and participation. Body functions are covered by 2 instruments. Two instruments were linked to 1 single ICF category only. Clinicians and researchers who need to select an occupation-based instrument must be aware of the areas that are covered by this instrument and the potential areas that are not covered at all.

  4. Professional Development for Occupational Specialist: Occupational Competency Testing. Final Report.

    ERIC Educational Resources Information Center

    Purdue Univ., Lafayette, IN.

    The organization, scope, and activities of the Indiana Occupational Competency Testing Center were expanded to accommodate the requirements of the new Occupational Specialist Certificate for secondary vocational teacher credentialling. A pilot project involved three regional sites in the state. The director of the host area site acted as area…

  5. [General and occupational morbidity in workers engaged into electrolysis nickel production in Transpolar Kolsky area].

    PubMed

    Tarnovskaia, E V; Siurin, S A; Chashchin, V P

    2010-01-01

    Findings are that occupational factors in nickel electrolysis workshops induce respiratory and peripheral nervous system diseases. Electrolysis workers demonstrate the highest prevalence and risk of occupational diseases. The authors make a conclusion on necessity to improve prophylactic methods for occupational disorders in these workers.

  6. PROJECT NOTIFY--NEEDED OCCUPATIONAL TELEVISION INSTRUCTION FOR YOUTH.

    ERIC Educational Resources Information Center

    BANCROFT, JOHN; LAWSON, WILLIAM H.

    AN EVALUATION WAS MADE OF THE EFFECTIVENESS OF VIDEO TAPES AS A MEANS OF DISSEMINATING OCCUPATIONAL INFORMATION TO HIGH SCHOOL STUDENTS. AFTER CRITERIA FOR SELECTION WERE DETERMINED, SEVEN OCCUPATIONAL AREAS WERE CHOSEN FOR PRESENTATION BY VIDEO TAPE. THE TELEVISION PROGRAMS WERE DESIGNED TO IDENTIFY ENTRY LEVEL JOBS IN THE OCCUPATIONAL AREAS…

  7. Directory of Academic Programs in Occupational Safety and Health.

    ERIC Educational Resources Information Center

    Weis, William J., III; And Others

    This booklet describes academic program offerings in American colleges and universities in the area of occupational safety and health. Programs are divided into five major categories, corresponding to each of the core disciplines: (1) occupational safety and health/industrial hygiene, (2) occupational safety, (3) industrial hygiene, (4)…

  8. [Insurance against occupational cancer in Italy and in Europe].

    PubMed

    Bottazzi, Marco

    2009-01-01

    European and Italian data show a marked under ascertainment of occupational cancers: only a small proportion is recognized, although for the majority of them the etiological fraction attributable to the workplace is high. Since more than 20 years Patronato INCA is active in order to reduce this gap. Its commitment to spread scientific knowledge has paralleled the action intended to make social security rules more favourable to workers, as well as to improve hygiene and safety in the workplace. Particular attention has been given to updating both the Italian list of occupational diseases for which notification is compulsory (which includes all Group I carcinogens according to IARC) and the Italian tables of occupational diseases. The latter are of particular relevance to the Patronato because, within the Italian norms, causality is approached in different terms according to whether a disease is or is not included in the tables. Together with changing the tables, a theoretical elaboration regarding causality, as required by multifactorial diseases such as occupational cancer, has been carried out. Such a constant commitment to bring to the surface occupational diseases is based on the belief that the right to compensation of workers who turned ill because of the work is important, and even more on the belief that identification of occupational diseases is most important for primary prevention.

  9. Composition of Metallic Elements and Size Distribution of Fine and Ultrafine Particles in a Steelmaking Factory.

    PubMed

    Marcias, Gabriele; Fostinelli, Jacopo; Catalani, Simona; Uras, Michele; Sanna, Andrea Maurizio; Avataneo, Giuseppe; De Palma, Giuseppe; Fabbri, Daniele; Paganelli, Matteo; Lecca, Luigi Isaia; Buonanno, Giorgio; Campagna, Marcello

    2018-06-07

    The characteristics of aerosol, in particular particle size and chemical composition, can have an impact on human health. Particle size distribution and chemical composition is a necessary parameter in occupational exposure assessment conducted in order to understand possible health effects. The aim of this study was to characterize workplace airborne particulate matter in a metallurgical setting by synergistically using two different approaches; Methodology: Analysis of inhalable fraction concentrations through traditional sampling equipment and ultrafine particles (UFP) concentrations and size distribution was conducted by an Electric Low-Pressure Impactor (ELPI+™). The determination of metallic elements (ME) in particles was carried out by inductively coupled plasma mass spectrometry; Results: Inhalable fraction and ME concentrations were below the limits set by Italian legislation and the American Conference of Governmental Industrial Hygienists (ACGIH, 2017). The median of UFP was between 4.00 × 10⁴ and 2.92 × 10⁵ particles/cm³. ME concentrations determined in the particles collected by ELPI show differences in size range distribution; Conclusions: The adopted synergistic approach enabled a qualitative and quantitative assessment of the particles in steelmaking factories. The results could lead to a better knowledge of occupational exposure characterization, in turn affording a better understanding of occupational health issues due to metal fumes exposure.

  10. High Fractional Occupancy of a Tandem Maf Recognition Element and Its Role in Long-Range β-Globin Gene Regulation

    PubMed Central

    Stees, Jared R.; Hossain, Mir A.; Sunose, Tomoki; Kudo, Yasushi; Pardo, Carolina E.; Nabilsi, Nancy H.; Darst, Russell P.; Poudyal, Rosha; Igarashi, Kazuhiko; Kladde, Michael P.

    2015-01-01

    Enhancers and promoters assemble protein complexes that ultimately regulate the recruitment and activity of RNA polymerases. Previous work has shown that at least some enhancers form stable protein complexes, leading to the formation of enhanceosomes. We analyzed protein-DNA interactions in the murine β-globin gene locus using the methyltransferase accessibility protocol for individual templates (MAPit). The data show that a tandem Maf recognition element (MARE) in locus control region (LCR) hypersensitive site 2 (HS2) reveals a remarkably high degree of occupancy during differentiation of mouse erythroleukemia cells. Most of the other transcription factor binding sites in LCR HS2 or in the adult β-globin gene promoter regions exhibit low fractional occupancy, suggesting highly dynamic protein-DNA interactions. Targeting of an artificial zinc finger DNA-binding domain (ZF-DBD) to the HS2 tandem MARE caused a reduction in the association of MARE-binding proteins and transcription complexes at LCR HS2 and the adult βmajor-globin gene promoter but did not affect expression of the βminor-globin gene. The data demonstrate that a stable MARE-associated footprint in LCR HS2 is important for the recruitment of transcription complexes to the adult βmajor-globin gene promoter during erythroid cell differentiation. PMID:26503787

  11. Occupational exposure to carcinogens: Benzene, pesticides and fibers

    PubMed Central

    Falzone, Luca; Marconi, Andrea; Loreto, Carla; Franco, Sabrina; Spandidos, Demetrios A.; Libra, Massimo

    2016-01-01

    It is well known that the occupational exposure to contaminants and carcinogens leads to the development of cancer in exposed workers. In the 18th century, Percivall Pott was the first to hypothesize that chronic exposure to dust in the London chimney sweeps was associated with an increased risk of developing cancer. Subsequently a growing body of evidence indicated that other physical factors were also responsible for oncogenic mutations. Over the past decades, many carcinogens have been found in the occupational environment and their presence is often associated with an increased incidence of cancer. Occupational exposure involves several factors and the association between carcinogens, occupational exposure and cancer is still unclear. Only a fraction of factors is recognized as occupational carcinogens and for each factor, there is an increased risk of cancer development associated with a specific work activity. According to the International Agency for Research on Cancer (IARC), the majority of carcinogens are classified as ‘probable’ and ‘possible’ human carcinogens, while, direct evidence of carcinogenicity is provided in epidemiological and experimental studies. In the present review, exposures to benzene, pesticides and mineral fibers are discussed as the most important cancer risk factors during work activities. PMID:27748850

  12. Occupational exposure to carcinogens: Benzene, pesticides and fibers (Review).

    PubMed

    Falzone, Luca; Marconi, Andrea; Loreto, Carla; Franco, Sabrina; Spandidos, Demetrios A; Libra, Massimo

    2016-11-01

    It is well known that the occupational exposure to contaminants and carcinogens leads to the development of cancer in exposed workers. In the 18th century, Percivall Pott was the first to hypothesize that chronic exposure to dust in the London chimney sweeps was associated with an increased risk of developing cancer. Subsequently a growing body of evidence indicated that other physical factors were also responsible for oncogenic mutations. Over the past decades, many carcinogens have been found in the occupational environment and their presence is often associated with an increased incidence of cancer. Occupational exposure involves several factors and the association between carcinogens, occupational exposure and cancer is still unclear. Only a fraction of factors is recognized as occupational carcinogens and for each factor, there is an increased risk of cancer development associated with a specific work activity. According to the International Agency for Research on Cancer (IARC), the majority of carcinogens are classified as 'probable' and 'possible' human carcinogens, while, direct evidence of carcinogenicity is provided in epidemiological and experimental studies. In the present review, exposures to benzene, pesticides and mineral fibers are discussed as the most important cancer risk factors during work activities.

  13. Asthma caused by occupational exposures is common – A systematic analysis of estimates of the population-attributable fraction

    PubMed Central

    Torén, Kjell; Blanc, Paul D

    2009-01-01

    Background The aim of this paper is to highlight emerging data on occupational attributable risk in asthma. Despite well documented outbreaks of disease and the recognition of numerous specific causal agents, occupational exposures previously had been relegated a fairly minor role relative to other causes of adult onset asthma. In recent years there has been a growing recognition of the potential importance of asthma induced by work-related exposures Methods We searched Pub Med from June 1999 through December 2007. We identified six longitudinal general population-based studies; three case-control studies and eight cross-sectional analyses from seven general population-based samples. For an integrated analysis we added ten estimates prior to 1999 included in a previous review. Results The longitudinal studies indicate that 16.3% of all adult-onset asthma is caused by occupational exposures. In an overall synthesis of all included studies the overall median PAR value was 17.6%. Conclusion Clinicians should consider the occupational history when evaluating patients in working age who have asthma. At a societal level, these findings underscore the need for further preventive action to reduce the occupational exposures to asthma-causing agents. PMID:19178702

  14. Heavy metals in hair of residents in an e-waste recycling area, south China: contents and assessment of bodily state.

    PubMed

    Zheng, Jing; Luo, Xiao-Jun; Yuan, Jian-Gang; He, Luo-Yiyi; Zhou, Yi-Hui; Luo, Yong; Chen, She-Jun; Mai, Bi-Xian; Yang, Zhong-Yi

    2011-11-01

    Heavy metals were measured in hair from occupationally and nonoccupationally exposed populations in an e-waste recycling area and from residents from a control rural town. The levels of five heavy metals were in the following order of Zn > Pb, Cu > Cd > Ni, with the highest levels found in the occupationally exposed workers. The levels of Cd, Pb, and Cu were significantly higher in residents from the e-waste recycling area than in the control area. Elevated Cd, Pb, and Cu contents along with significant positive correlations between them in hair from the e-waste recycling area indicated that these metals were likely to have originated from the e-waste recycling activities. The similarity in heavy metal pattern between children and occupationally exposed workers indicated that children are particularly vulnerable to heavy metal pollution caused by e-waste recycling activities. The increased Cu exposure might be a benefit for the insufficient intake of Cu in the studied area. However, the elevated hair Cd and Pb levels implied that the residents in the e-waste area might be at high risk of toxic metal, especially for children and occupationally exposed workers.

  15. ANNOTATED BIBLIOGRAPHY FOR VOCATIONAL-TECHNICAL EDUCATION, 1966.

    ERIC Educational Resources Information Center

    BRUNETTI, FRANK; WILLIAMS, JEROME

    MORE THAN 1,000 ITEMS ARE LISTED ALPHABETICALLY WITHIN SUBJECT AREAS. THE AREAS INCLUDE AGRICULTURAL EDUCATION, ART INDUSTRIES AND TRADE, BUSINESS EDUCATION, ECONOMICS, JOB ANALYSIS, LABOR AND DEMOCRACY, MANPOWER, OCCUPATIONAL HEALTH NURSING, OCCUPATIONS, PERSONNEL MANAGEMENT, TECHNICAL EDUCATION, VOCATIONAL GUIDANCE, VOCATIONAL MATHEMATICS,…

  16. Stream water temperature limits occupancy of salamanders in mid-Atlantic protected areas

    USGS Publications Warehouse

    Grant, Evan H. Campbell; Wiewel, Amber N. M.; Rice, Karen C.

    2014-01-01

    Stream ecosystems are particularly sensitive to urbanization, and tolerance of water-quality parameters is likely important to population persistence of stream salamanders. Forecasted climate and landscape changes may lead to significant changes in stream flow, chemical composition, and temperatures in coming decades. Protected areas where landscape alterations are minimized will therefore become increasingly important for salamander populations. We surveyed 29 streams at three national parks in the highly urbanized greater metropolitan area of Washington, DC. We investigated relationships among water-quality variables and occupancy of three species of stream salamanders (Desmognathus fuscus, Eurycea bislineata, and Pseudotriton ruber). With the use of a set of site-occupancy models, and accounting for imperfect detection, we found that stream-water temperature limits salamander occupancy. There was substantial uncertainty about the effects of the other water-quality variables, although both specific conductance (SC) and pH were included in competitive models. Our estimates of occupancy suggest that temperature, SC, and pH have some importance in structuring stream salamander distribution.

  17. Employment Opportunities in Applied Biological and Agricultural Occupations in the Metropolitan Area of Chicago.

    ERIC Educational Resources Information Center

    Thomas, Hollie B.; Neavill, Arthur

    Based on questionnaire data collected from a sample of employers, this phase of a larger research project ascertained employment opportunities in the area of applied biological and agricultural occupations in the metropolitan area of Chicago. Specific fields of business surveyed by stratified random sample were animal care, animal health care,…

  18. Sustainability of the Dissemination of an Occupational Sun Protection Program in a Randomized Trial

    ERIC Educational Resources Information Center

    Buller, David B.; Walkosz, Barbara J.; Andersen, Peter A.; Scott, Michael D.; Dignan, Mark B.; Cutter, Gary R.; Zhang, Xiao; Kane, Ilima L.

    2012-01-01

    Sustainability of an occupational sun safety program, Go Sun Smart (GSS), was explored in a randomized trial, testing dissemination strategies at 68 U.S. and Canadian ski areas in 2004-2007. All ski areas received GSS from the National Ski Areas Association through a Basic Dissemination Strategy (BDS) using conference presentations and free…

  19. Trend of Occupational Injuries/Diseases in Pakistan: Index Value Analysis of Injured Employed Persons from 2001-02 to 2012-13.

    PubMed

    Abbas, Mohsin

    2015-09-01

    The present study aimed to analyze the index value trends of injured employed persons (IEPs) covered in Pakistan Labour Force Surveys from 2001-02 to 2012-13. The index value method based on reference years and reference groups was used to analyze the IEP trends in terms of different criteria such as gender, area, employment status, industry types, occupational groups, types of injury, injured body parts, and treatment received. The Pearson correlation coefficient analysis was also performed to investigate the inter-relationship of different occupational variables. The values of IEP increased at the end of the studied year in industry divisions such as agriculture, forestry, hunting, and fishing, followed by in manufacturing and construction industry divisions. People associated with major occupations (such as skilled agricultural and fishery workers) and elementary (unskilled) occupations were found to be at an increasing risk of occupational injuries/diseases with an increasing IEP trend. Types of occupational injuries such as sprain or strain, superficial injury, and dislocation increased during the studied years. Major injured parts of body such as upper limb and lower limb found with increasing trend. Types of treatment received, including hospitalization and no treatment, were found to decrease. Increased IEP can be justified due to inadequate health care facilities, especially in rural areas by increased IEP in terms of gender, areas, received treatment, occupational groups and employment status as results found after Pearson correlation coefficient analysis. The increasing trend in the IEP% of the total employed persons due to agrarian activities shows that there is a need to improve health care setups in rural areas of Pakistan.

  20. Trend of Occupational Injuries/Diseases in Pakistan: Index Value Analysis of Injured Employed Persons from 2001–02 to 2012–13

    PubMed Central

    Abbas, Mohsin

    2015-01-01

    Background The present study aimed to analyze the index value trends of injured employed persons (IEPs) covered in Pakistan Labour Force Surveys from 2001–02 to 2012–13. Methods The index value method based on reference years and reference groups was used to analyze the IEP trends in terms of different criteria such as gender, area, employment status, industry types, occupational groups, types of injury, injured body parts, and treatment received. The Pearson correlation coefficient analysis was also performed to investigate the inter-relationship of different occupational variables. Results The values of IEP increased at the end of the studied year in industry divisions such as agriculture, forestry, hunting, and fishing, followed by in manufacturing and construction industry divisions. People associated with major occupations (such as skilled agricultural and fishery workers) and elementary (unskilled) occupations were found to be at an increasing risk of occupational injuries/diseases with an increasing IEP trend. Types of occupational injuries such as sprain or strain, superficial injury, and dislocation increased during the studied years. Major injured parts of body such as upper limb and lower limb found with increasing trend. Types of treatment received, including hospitalization and no treatment, were found to decrease. Increased IEP can be justified due to inadequate health care facilities, especially in rural areas by increased IEP in terms of gender, areas, received treatment, occupational groups and employment status as results found after Pearson correlation coefficient analysis. Conclusion The increasing trend in the IEP% of the total employed persons due to agrarian activities shows that there is a need to improve health care setups in rural areas of Pakistan. PMID:26929831

  1. Modeling of site occupancy dynamics for northern spotted owls, with emphasis on the effects of barred owls

    USGS Publications Warehouse

    Olson, Gail S.; Anthony, Robert G.; Forsman, Eric D.; Ackers, Steven H.; Loschl, Peter J.; Reid, Janice A.; Dugger, Katie M.; Glenn, Elizabeth M.; Ripple, William J.

    2005-01-01

    Northern spotted owls (Strix occidentalis caurina) have been studied intensively since their listing as a threatened species by the U.S. Fish and Wildlife Service in 1990. Studies of spotted owl site occupancy have used various binary response measures, but most of these studies have made the assumption that detectability is perfect, or at least high and not variable. Further, previous studies did not consider temporal variation in site occupancy. We used relatively new methods for open population modeling of site occupancy that incorporated imperfect and variable detectability of spotted owls and allowed modeling of temporal variation in site occupancy, extinction, and colonization probabilities. We also examined the effects of barred owl (S. varia) presence on these parameters. We used spotted owl survey data from 1990 to 2002 for 3 study areas in Oregon, USA, and we used program MARK to develop and analyze site occupancy models. We found per visit detection probabilities averaged <0.70 and were highly variable among study years and study areas. Site occupancy probabilities for owl pairs declined greatly on 1 study area and slightly on the other 2 areas. For all owls, including singles and pairs, site occupancy was mostly stable through time. Barred owl presence had a negative effect on spotted owl detection probabilities, and it had either a positive effect on local-extinction probabilities or a negative effect on colonization probabilities. We conclude that further analyses of spotted owls must account for imperfect and variable detectability and barred owl presence to properly interpret results. Further, because barred owl presence is increasing within the range of northern spotted owls, we expect to see further declines in the proportion of sites occupied by spotted owls.

  2. Traditional Occupations in a Modern World: Implications for Career Guidance and Livelihood Planning

    ERIC Educational Resources Information Center

    Ratnam, Anita

    2011-01-01

    This article is an attempt to examine the place and significance of traditional occupations as careers in today's world. The areas of tension and compatibility between ideas and values that signify modernity and the practice of traditional occupations are reviewed. The meaning of "traditional occupations" is unravelled, the potential that…

  3. [Effects of controlling specific dangerous pesticides on prevention of acute pesticide poisoning in rural area].

    PubMed

    Zhang, Ping; Zhao, Jiang-xia; Chang, Xiu-li; Zhou, Zhi-jun

    2010-09-01

    To investigate the effects of controlling the specific dangerous pesticides on prevention of acute pesticide poisoning in rural area. The data of reported cases of pesticide poisoning were analyzed to find out the specific dangerous pesticide in acute pesticide poisoning. Then the occurrence of occupational pesticide poisoning and fatality of non-occupational pesticide poisoning were estimated under the hypothesis of removing the specific dangerous pesticides. The data indicated that parathion (including methyl parathion) was the specific dangerous pesticide inducing occupational pesticide poisoning. After removing the use of parathion, the hazard of pesticides which caused occupational pesticide poisoning would be significantly decreased (P < 0.01). Parathion was also the most dangerous pesticide which caused non-occupational pesticide poisoning, with its fatality up to 15.8%. If parathion was well controlled, the fatality of non-occupational pesticide poisoning would be declined from 9.4% to 7.4%. The analyses of related literatures also revealed the similar results. The occurrence of occupational pesticide poisoning and fatality of non-occupational pesticide poisoning may decrease if the most dangerous pesticides are well supervised.

  4. Management decision making for fisher populations informed by occupancy modeling

    USGS Publications Warehouse

    Fuller, Angela K.; Linden, Daniel W.; Royle, J. Andrew

    2016-01-01

    Harvest data are often used by wildlife managers when setting harvest regulations for species because the data are regularly collected and do not require implementation of logistically and financially challenging studies to obtain the data. However, when harvest data are not available because an area had not previously supported a harvest season, alternative approaches are required to help inform management decision making. When distribution or density data are required across large areas, occupancy modeling is a useful approach, and under certain conditions, can be used as a surrogate for density. We collaborated with the New York State Department of Environmental Conservation (NYSDEC) to conduct a camera trapping study across a 70,096-km2 region of southern New York in areas that were currently open to fisher (Pekania [Martes] pennanti) harvest and those that had been closed to harvest for approximately 65 years. We used detection–nondetection data at 826 sites to model occupancy as a function of site-level landscape characteristics while accounting for sampling variation. Fisher occupancy was influenced positively by the proportion of conifer and mixed-wood forest within a 15-km2 grid cell and negatively associated with road density and the proportion of agriculture. Model-averaged predictions indicated high occupancy probabilities (>0.90) when road densities were low (<1 km/km2) and coniferous and mixed forest proportions were high (>0.50). Predicted occupancy ranged 0.41–0.67 in wildlife management units (WMUs) currently open to trapping, which could be used to guide a minimum occupancy threshold for opening new areas to trapping seasons. There were 5 WMUs that had been closed to trapping but had an average predicted occupancy of 0.52 (0.07 SE), and above the threshold of 0.41. These areas are currently under consideration by NYSDEC for opening a conservative harvest season. We demonstrate the use of occupancy modeling as an aid to management decision making when harvest-related data are unavailable and when budgetary constraints do not allow for capture–recapture studies to directly estimate density.

  5. Occupational asthma in the developing and industrialised world: a review.

    PubMed

    Jeebhay, M F; Quirce, S

    2007-02-01

    Occupational asthma is the most common occupational lung disease in industrialised countries, and the second most common occupational lung disease reported after pneumoconioses in developing countries. The median proportion of adult cases of asthma attributable to occupational exposure is between 10% and 15%. The population attributable fraction appears to be similar in industrialised and developing countries characterised by rapid industrialisation (13-15%), but lower in less industrialised developing countries (6%). The high-risk occupations and industries associated with the development of occupational asthma vary depending on the dominant industrial sectors in a particular country. High-risk exposure to cleaning agents and pesticide exposure in developing countries appear to be as important as exposure to isocyanates, cereal flour/grain dust, welding fumes, wood dust and, more recently, hairdressing chemicals, commonly reported in industrialised countries. The reported mean annual incidence of occupational asthma in developing countries is less than 2 per 100 000 population, compared to very high rates of up to 18/100 000 in Scandinavian countries. While occupational asthma remains under-recognised, especially in developing countries, it remains poorly diagnosed and managed and inadequately compensated worldwide. Primary and secondary preventive strategies should be directed at controlling workplace exposures, accompanied by intense educational and managerial improvements. Appropriate treatment remains early removal from exposure to ensure that the worker has no further exposure to the causal agent, with preservation of income. However, up to one third of workers with occupational asthma continue to remain exposed to the causative agent or suffer prolonged work disruption, discrimination and risk of unemployment.

  6. Residential Segregation by Occupation and Race in Ten Urbanized Areas, 1950-1970.

    ERIC Educational Resources Information Center

    Simkus, Albert A.

    1978-01-01

    This study is directed at measuring the changes in residential segregation in ten United States urbanized areas during the 1950s and 1960s. Changes in the relationship between racial and occupational residential segregation are also examined. (Author/EB)

  7. ESTIMATING PROPORTION OF AREA OCCUPIED UNDER COMPLEX SURVEY DESIGNS

    EPA Science Inventory

    Estimating proportion of sites occupied, or proportion of area occupied (PAO) is a common problem in environmental studies. Typically, field surveys do not ensure that occupancy of a site is made with perfect detection. Maximum likelihood estimation of site occupancy rates when...

  8. 36 CFR 294.25 - Mineral activities in Idaho Roadless Areas.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... recommend, authorize, or consent to road construction, road reconstruction, or surface occupancy associated... construction or road reconstruction associated with mineral leases in Idaho Roadless Areas designated as Backcountry/Restoration. Surface use or occupancy without road construction or reconstruction is permissible...

  9. Exploring arising moments and mindfulness in occupational therapists working in diverse clinical practice areas.

    PubMed

    Reid, Denise; Naseer, Zahid

    2012-10-01

    An online survey was conducted with 72 Canadian occupational therapists to (1) explore if and how occupational therapists were aware of "arising moments" in clinical practice, which are moments that give rise to emotions, sensations, and thoughts, and (2) to examine therapists' responses to questions related to mindfulness. Participants described arising moments through an open-ended survey question. Framework analysis was used to develop key themes and subthemes. A modified Philadelphia Mindfulness Awareness (PHLMS) subscale with two additional survey questions "understanding of living in the moment and being present, and awareness of mindfulness" (sum = PAM) were used as indicators of mindfulness. There were significant differences in the means of PHLMS mindfulness among therapists working in diverse practice areas (F = 3.63, p = .009). Posthoc analysis revealed that therapists working in mental health had higher mean PHLMS-mindfulness scores than in all other groups. There were no significant differences in PAM mindfulness among the practice areas (ANOVA, F = 2.15, p = .08). However, posthoc tests showed that the participants in the mental health practice area had a significant difference with one group, general physical health. Findings have implications for practice in occupational therapy and education about mindfulness in occupational therapy.

  10. Multimessenger Signatures of Massive Black Holes in Dwarf Galaxies

    NASA Astrophysics Data System (ADS)

    Bellovary, Jillian; Cleary, Colleen; Tremmel, Michael; Munshi, Ferah

    2018-01-01

    Inspired by the recent discovery of several nearby dwarf galaxies hosting active galactic nuclei, we present results from a series of cosmological hydrodynamic simulations focusing on dwarf galaxies which host supermassive black holes (SMBHs). Cosmological simulations are a vital tool for predicting SMBH populations and merger events which will eventually be observed by LISA. Dwarf galaxies are the most numerous in the universe, so even though the occupation fraction of SMBHs in dwarfs is less than unity, their contribution to the gravitational wave background could be non-negligible. We find that electromagnetic signatures from SMBH accretion are not common among most SMBH-hosting dwarfs, but the gravitational wave signatures can be substantial. The most common mass ratio for SMBH mergers in low-mass galaxy environments is ~1:20, which is an unexplored region of gravitational waveform parameter space. We discuss the occupation fraction of SMBHs in low-mass galaxies as well as differences in field and satellite populations, providing clues to search for and characterize these elusive giants lurking in the dwarfs.

  11. Northern bobwhite response to habitat restoration in eastern oklahoma

    USGS Publications Warehouse

    Crosby, Andrew D.; Elmore, R.D.; Leslie,, David M.

    2013-01-01

    In response to the decline of northern bobwhite (Colinus virginianus; hereafter, bobwhite) in eastern Oklahoma, USA, a cost-share incentive program for private landowners was initiated to restore early successional habitat. Our objectives were to determine whether the program had an effect on bobwhite occupancy in the restoration areas and evaluate how local-and landscape-level habitat characteristics affect occupancy in both restoration and control areas. We surveyed 14 sample units that received treatment between 2009 and 2011, and 17 sample units that were controls. We used single-season occupancy models, with year as a dummy variable, to test for an effect of restoration treatment and habitat variables on occupancy. We found no significant treatment effect. Model selection showed that occupancy was best explained by the combination of overstory canopy cover and habitat area at both the local and landscape scales. Moran's I revealed positive spatial autocorrelation in the 1,000-3,000-m distance band, indicating that the likelihood of bobwhite occupancy increased with proximity to other populations. We show that creating ≥ 20 ha of habitat within 1-3 km of existing bobwhite populations increases the chance of restoration being successful.

  12. Identification of Occupational Areas for Indiana's Future. Final Report of the Technology Forecasting Task Force.

    ERIC Educational Resources Information Center

    Indiana State Commission on Vocational and Technical Education, Indianapolis.

    A task force representing the Indiana private sector was convened for two purposes: to (1) identify the impact of technology on required worker skills, the labor market, and the vocational education, training, and employment system; and (2) identify occupational areas that should be future growth areas for the state. Task force members reviewed…

  13. Job Vacancies in Iowa Manufacturing Establishments as Reported for the Period March Through August 1968. Volume III, No. 1.

    ERIC Educational Resources Information Center

    Jakubauskas, Edward B.; Palomba, Neil A.

    Job vacancies were reported to aid Iowa area vocational schools in developing curriculums and training program by determining: (1) occupations to be considered for training purposes in area vocational schools, (2) demand for workers in occupations under consideration by area schools, (3) oversupply in certain skills, and (4) an on-going procedure…

  14. An Analysis of Occupational Titles and Competencies Needed in Agricultural Food Products Processing Plants.

    ERIC Educational Resources Information Center

    Smeltz, LeRoy C.

    To identify, rate, and cluster groups of competencies and occupational titles at entry and advance levels for occupations in five food products commodity areas, data were collected by interviews with personnel managers in 25 Pennsylvania food processing plants. Some findings were: (1) There were meaningful competency factor and occupational title…

  15. Relative household wealth and non-fatal road crashes: analysis of population-representative data of Kenyan adults.

    PubMed

    Kraemer, John D

    2018-05-18

    This study aims to examine potential road crash disparities across relative wealth and location of residence in Kenya by analyzing population-representative Demographic and Health Survey data. Relative wealth was measured by household assets, converted into an index by polychoric principal components analysis. Location and sex-stratified associations between wealth quantiles and crashes were flexibly estimated using fractional polynomial models. Structural equation models were fit to examine whether observed differences may operate through previously identified determinants. In rural areas, crashes were least common for both the poorest men (-5.2 percentage points, 95% CI: -7.3 to -3.2) and women (-1.6 percentage points, 95% CI: -2.9 to -0.4). In urban areas, male crashes were lowest (-3.0 percentage points, 95% CI: -5.2 to -0.8) among the wealthiest, while they peaked in the middle of the female wealth distribution (2.0 percentage points, 95% CI: 0.3-3.8). Male differences operate partially though occupational driving and vehicle ownership. Urban female differences operate partially through household vehicle ownership, but differences for rural women were not explained by modeled determinants. Relative wealth and road crash have opposite associations in rural and urban areas. Especially in rural areas, it is important to mitigate potential unintended effects of economic development.

  16. Estimating the drink driving attributable fraction of road traffic deaths in Mexico.

    PubMed

    Santoyo-Castillo, Dzoara; Pérez-Núñez, Ricardo; Borges, Guilherme; Híjar, Martha

    2018-05-01

    To estimate the Drink Driving Attributable Fraction (DDAF) of road traffic injury mortality in car occupants in Mexico during 2010-13. A case-control study was conducted to examine the presence of alcohol in analysed body fluids of car occupants killed in fatal crashes (cases) compared with car drivers tested in alcohol-testing checkpoints who were not involved in a fatal collision (controls). Two data sets were used for the period 2010-13: the forensic module of the Epidemiological Surveillance System on Addictions that included car occupants killed in a collision (cases) and a data set from alcohol-testing at police checkpoints available for matching municipalities (controls). Mexico. The analysed study sample included 1718 car occupants killed in a traffic collision and 80 656 drivers tested at alcohol police checkpoints, all from 10 municipalities. Unadjusted and adjusted odds ratios (OR) of presence of alcohol in body fluids were obtained stratified by sex and age groups and the interaction with these two variables were assessed. The ORs were used to calculate the DDAF. It was estimated that 19.5% of car occupants' deaths due to road traffic injuries were attributable to alcohol consumption [95% confidence interval (CI) = 19.1-19.9]. The adjusted OR of presence of alcohol was 6.84 (95% CI = 6.06-7.71) overall. For males it was 7.21 (95% CI = 6.35-8.18) and for females it was 4.45 (95% CI = 3.01-6.60). The ORs were similar across younger age bands (10-19 years: 9.61, 95% CI = 6.72-13.73; 20-29 years: 7.70, 95% CI = 6.28-9.4; and 30-49 years: 7.21, 95% CI = 5.98-8.70); and lower but still elevated among older people (50+ years: 3.19, 95% CI = 2.19-4.65). An estimated 19.5% of car occupant deaths in Mexico may have been caused by alcohol in 2010-13. © 2017 Society for the Study of Addiction.

  17. Reinterpreting the Anomalous Mole Fraction Effect: The Ryanodine Receptor Case Study

    PubMed Central

    Gillespie, Dirk; Giri, Janhavi; Fill, Michael

    2009-01-01

    Abstract The origin of the anomalous mole fraction effect (AMFE) in calcium channels is explored with a model of the ryanodine receptor. This model predicted and experiments verified new AMFEs in the cardiac isoform. In mole fraction experiments, conductance is measured in mixtures of ion species X and Y as their relative amounts (mole fractions) vary. This curve can have a minimum (an AMFE). The traditional interpretation of the AMFE is that multiple interacting ions move through the pore in a single file. Mole fraction curves without minima (no AMFEs) are generally interpreted as X displacing Y from the pore in a proportion larger than its bath mole fraction (preferential selectivity). We find that the AMFE is also caused by preferential selectivity of X over Y, if X and Y have similar conductances. This is a prediction applicable to any channel and provides a fundamentally different explanation of the AMFE that does not require single filing or multiple occupancy: preferential selectivity causes the resistances to current flow in the baths, channel vestibules, and selectivity filter to change differently with mole fraction, and produce the AMFE. PMID:19843453

  18. Spatio-temporal patterns of ptarmigan occupancy relative to shrub cover in the Arctic

    USGS Publications Warehouse

    Schmutz, Joel A.

    2014-01-01

    Rock and willow ptarmigan are abundant herbivores that require shrub habitats in arctic and alpine areas. Shrub expansion is likely to increase winter habitat availability for ptarmigan, which in turn influence shrub architecture and growth through browsing. Despite their ecological role in the Arctic, the distribution and movement patterns of ptarmigan are not well known, particularly in northern Alaska where shrub expansion is occurring. We used multi-season occupancy models to test whether ptarmigan occupancy varied within and among years, and the degree to which colonization and extinction probabilities were related to shrub cover and latitude. Aerial surveys were conducted from March to May in 2011 and April to May 2012 in a 21,230 km2 area in northeastern Alaska. In areas with at least 30 % shrub cover, the probability of colonization by ptarmigan was >0.90, indicating that moderate to extensive patches of shrubs (typically associated with riparian areas) had a high probability of becoming occupied by ptarmigan. Occupancy increased throughout the spring in both years, providing evidence that ptarmigan migrated from southern wintering areas to breeding areas north of the Brooks Range. Occupancy was higher in the moderate snow year than the high snow year, and this was likely due to higher shrub cover in the moderate snow year. Ptarmigan distribution and migration in the Arctic are linked to expanding shrub communities on a wide geographic scale, and these relationships may be shaping ptarmigan population dynamics, as well as rates and patterns of shrub expansion.

  19. Fort Hood Building Occupant Survey. Volume 2 - Survey Results.

    DTIC Science & Technology

    1993-06-01

    occupant energy awareness. The survey was designed to provide insights into the work area characteristics preferred by building occupants, and to...help in designing programs that reduce energy expenditures without the negative impacts on quality of fife, productivity, and comfort that are sometimes...ventilation system and/or air conditioner noise 1 2 3 4 5 (q4_lf) Fluorescent lighting buzz 1 2 3 4 5 (q4_lo) Other noise in my work area 1 2 3 4 5 (q4_lop

  20. 7 CFR 407.9 - Area risk protection insurance policy.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... FCIC, whose research or occupation is related to the specific crop or practice for which such expertise... following organizations: Appropriate Technology Transfer for Rural Areas, Sustainable Agriculture Research... other persons approved by FCIC, whose research or occupation is related to the specific organic crop or...

  1. Occupational burden of asbestos-related cancer in Argentina, Brazil, Colombia, and Mexico.

    PubMed

    Pasetto, Roberto; Terracini, Benedetto; Marsili, Daniela; Comba, Pietro

    2014-01-01

    An estimate at the national level of the occupational cancer burden brought about by the industrial use of asbestos requires detailed routine information on such uses as well as on vital statistics of good quality. A causal association with asbestos exposure has been established for mesothelioma and cancers of the lung, larynx, and ovary. The aim of this study was to provide estimates of the occupational burden of asbestos-related cancer for the Latin American countries that are or have been the highest asbestos consumers in the region: Argentina, Brazil, Colombia, and Mexico. The burden of multifactorial cancers has been estimated through the approach suggested for the World Health Organization using the population attributable fraction. The following data were used: Proportion of workforce employed in each economic sector. Proportion of workers exposed to asbestos in each sector. Occupational turnover. Levels of exposure. Proportion of the population in the workforce. Relative risk for each considered disease for 1 or more levels of exposure. Data on the proportion of workers exposed to asbestos in each sector are not available for Latin American countries; therefore, data from the European CAREX database (carcinogen exposure database) were used. Using mortality data of the World Health Organization Health Statistics database for the year 2009 and applying the estimated values for population attributable fractions, the number of estimated deaths in 5 years for mesothelioma and for lung, larynx, and ovary cancers attributable to occupational asbestos exposures, were respectively 735, 233, 29, and 14 for Argentina; 340, 611, 68, and 43 for Brazil; 255, 97, 14, and 9 for Colombia, and 1075, 219, 18, and 22 for Mexico. The limitations in compiling the estimates highlight the need for improvement in the quality of asbestos-related environmental and health data. Nevertheless, the figures are already usable to promote a ban on asbestos use. Copyright © 2014 Icahn School of Medicine at Mount Sinai. Published by Elsevier Inc. All rights reserved.

  2. Cumulative occupational shoulder exposures and surgery for subacromial impingement syndrome: a nationwide Danish cohort study.

    PubMed

    Dalbøge, Annett; Frost, Poul; Andersen, Johan Hviid; Svendsen, Susanne Wulff

    2014-11-01

    The primary aim was to examine exposure-response relationships between cumulative occupational shoulder exposures and surgery for subacromial impingement syndrome (SIS), and to compare sex-specific exposure-response relationships. The secondary aim was to examine the time window of relevant exposures. We conducted a nationwide register study of all persons born in Denmark (1933-1977), who had at least 5 years of full-time employment. In the follow-up period (2003-2008), we identified first-time events of surgery for SIS. Cumulative exposure estimates for a 10-year exposure time window with a 1-year lag time were obtained by linking occupational codes with a job exposure matrix. The exposure estimates were expressed as, for example, arm-elevation-years in accordance with the pack-year concept of tobacco consumption. We used a multivariable logistic regression technique equivalent to discrete survival analysis. The adjusted OR (ORadj) increased to a maximum of 2.1 for arm-elevation-years, repetition-years and force-years, and to 1.5 for hand-arm-vibration-years. Sex-specific exposure-response relationships were similar for men and women, when assessed using a relative risk scale. The ORadj increased gradually with the number of years contributing to the cumulative exposure estimates. The excess fraction was 24%. Cumulative occupational shoulder exposures carried an increase in risk of surgery for SIS with similar exposure-response curves for men and women. The risk of surgery for SIS increased gradually, when the period of exposure assessment was extended. In the general working population, a substantial fraction of all first-time operations for SIS could be related to occupational exposures. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  3. Community mobility in the context of universal design: inter-professional collaboration and education.

    PubMed

    Hitch, Danielle; Larkin, Helen; Watchorn, Valerie; Ang, Susan

    2012-10-01

    The design of built environments is a critical factor in facilitating participation for all community members. This study aimed to explore key stakeholders' views on the role and collaboration of occupational therapists and architects in relation to universal design and the built environment. This study is currently the only research to focus on the needs and practices of both occupational therapy and architecture in universal design. The results have implications for both clinical practice and professional education, and highlight an area of developing interest in occupational therapy. Focus groups and semi-structured telephone interviews were conducted with key stakeholders involved in the design of built environments. Data from these interviews were analysed qualitatively, using codes of interpreted meaning which were then organised into themes. Three main themes emerged in relation to inter-professional collaboration around universal design: 'form vs. function', 'the earlier the better' and 'universal design as a specialist area'. Although there are areas of synergy between occupational therapy and architecture in universal design, each profession has its own strengths and skills to bring to the design process. Given the multidisciplinary nature of ensuring designs support participation in occupations and roles, both professions could benefit from opportunities to meaningfully collaborate during professional education and in the workplace. © 2011 The Authors. Australian Occupational Therapy Journal © 2011 Occupational Therapy Australia.

  4. Sociocultural Differences Among Three Areas in Kentucky as Determinants of Educational and Occupational Aspirations and Expectations of Rural Youth.

    ERIC Educational Resources Information Center

    Bogie, Donald Wayne

    In an effort to determine whether there are differences in areas of residence that affect the aspirations and expectations of young people living therein, this study examined occupational and educational aspirations of 1,835 rural high school seniors from 3 sociocultural contexts in Kentucky: (1) a low-opportunity, rural-poverty area in central…

  5. Changes in FTSE in Selected Occupational Areas by Student Sex: Fall 1972, Fall 1977, and Fall 1982. Report No. 82-16.

    ERIC Educational Resources Information Center

    Bresler, Marilyn

    Data are provided in this report on the changes in the sexual composition of full-time student enrollments in selected occupational areas in the Maricopa County Community College District (MCCCD). The report provides figures on male and female enrollments for fall 1972, fall 1977, and fall 1982 in eight areas: Administration of Justice,…

  6. Changing Land Use: Peachtree Street, Atlanta. A Case Study in Sequent Occupance [And] Student Work Book.

    ERIC Educational Resources Information Center

    Laws, Kevin

    A social studies unit and student workbook explore the historical geography of the area of Peachtree Street in Atlanta, Georgia. The unit deals with sequent occupance, a type of historical geography in which students study the same area, the changes in culture, and the changing land use in the area during certain time periods. For each period,…

  7. Trends in compensation for deaths from occupational cancer in Canada: a descriptive study

    PubMed Central

    Del Bianco, Ann

    2013-01-01

    Background Occupational cancer is the leading cause of work-related deaths, yet it is often unrecognized and under reported, and associated claims for compensation go unfiled. We sought to examine trends in deaths from occupational cancer, high-risk industries and exposures, and commonly compensated categories of occupational cancers. In addition, we compared deaths from occupational lung cancer for which compensation had been given with total deaths from lung cancer. Methods We used data from the Association of Workers’ Compensation Boards of Canada pertaining to the nature and source of the injury or disease and the industry in which it occurred (by jurisdiction) to describe trends in compensated claims for deaths from occupational cancer in Canada for the period 1997–2010. We used data published by the Canadian Cancer Society in Canadian Cancer Statistics to compare compensated occupational lung cancer deaths with total estimated lung cancer deaths for the period between 2006 and 2010. Results Compensated claims for deaths from occupational cancer have increased in recent years and surpassed those for traumatic injuries and disorders in Canada, particularly in Ontario. Between 1997 and 2010, one-half of all compensated deaths from occupational cancer in Canada were from Ontario. High-risk industries for occupational cancer include manufacturing, construction, mining and, more recently, government services. Deaths from lung cancer and mesothelioma comprise most of the compensated claims for deaths from occupational cancer in Ontario and Canada. These diseases are usually the result of asbestos exposure. The burden of other occupational carcinogens is not reflected in claims data. Interpretation Although the number of accepted claims for deaths from occupational cancers has increased in recent years, these claims likely only represent a fraction of the true burden of this problem. Increased education of patients, workers at high risk of exposure and health care providers is needed to ensure that people with work-related cancer are identified and file a claim for compensation. PMID:25077112

  8. Trends in compensation for deaths from occupational cancer in Canada: a descriptive study.

    PubMed

    Del Bianco, Ann; Demers, Paul A

    2013-09-01

    Occupational cancer is the leading cause of work-related deaths, yet it is often unrecognized and under reported, and associated claims for compensation go unfiled. We sought to examine trends in deaths from occupational cancer, high-risk industries and exposures, and commonly compensated categories of occupational cancers. In addition, we compared deaths from occupational lung cancer for which compensation had been given with total deaths from lung cancer. We used data from the Association of Workers' Compensation Boards of Canada pertaining to the nature and source of the injury or disease and the industry in which it occurred (by jurisdiction) to describe trends in compensated claims for deaths from occupational cancer in Canada for the period 1997-2010. We used data published by the Canadian Cancer Society in Canadian Cancer Statistics to compare compensated occupational lung cancer deaths with total estimated lung cancer deaths for the period between 2006 and 2010. Compensated claims for deaths from occupational cancer have increased in recent years and surpassed those for traumatic injuries and disorders in Canada, particularly in Ontario. Between 1997 and 2010, one-half of all compensated deaths from occupational cancer in Canada were from Ontario. High-risk industries for occupational cancer include manufacturing, construction, mining and, more recently, government services. Deaths from lung cancer and mesothelioma comprise most of the compensated claims for deaths from occupational cancer in Ontario and Canada. These diseases are usually the result of asbestos exposure. The burden of other occupational carcinogens is not reflected in claims data. Although the number of accepted claims for deaths from occupational cancers has increased in recent years, these claims likely only represent a fraction of the true burden of this problem. Increased education of patients, workers at high risk of exposure and health care providers is needed to ensure that people with work-related cancer are identified and file a claim for compensation.

  9. WACOP (Westside Area Career/Occupation Project) Media Catalog for 1973, 1974.

    ERIC Educational Resources Information Center

    Glur, John; Catalano, Ruth

    The catalog lists various commercially prepared media materials available on loan from the Westside Area Career Occupation Project (WACOP) Media Center for evaluation prior to school or district purchase. Among the types of media specified are: books, kits, cassettes, films, instructional units, transparencies, posters, pamphlets, and magazines.…

  10. Human Centered Modeling and Simulation

    Science.gov Websites

    Contacts Researchers Thrust Area 2: Human Centered Modeling and Simulation Thrust Area Leader: Dr. Matthew performance of human occupants and operators are paramount in the achievement of ground vehicle design objectives, but these occupants are also the most variable components of the human-machine system. Modeling

  11. A Review of Occupational Injury Research In Malaysia.

    PubMed

    Ganesh, C S; Krishnan, R

    2016-06-01

    A literature review of 16 papers on occupational injury research in Malaysia published during a 13-year period from 2000-2013 was carried out. The objective of this review and article selection was based on relevance to the research theme and mention of areas for future research. Most of the publications have focused on descriptive epidemiology, management practices, worker's knowledge, attitude, training, and rehabilitation services. The transportation, agriculture and construction sectors were found to be the most hazardous sectors and would benefit the most from Occupational Safety & Health (OSH) research and interventions. There is a strong need to develop a national injury surveillance system and also a mechanism to ensure adherence to the Occupational Safety & Health Act(OSHA) 1994. Detailed description and identification of risk factors for occupational injury in the environment, including machinery and equipment used was generally lacking. Future research on occupational injury should focus on surveillance to determine the magnitude of occupational injuries, determination of risk factors, identifying costeffective interventions (such as enforcement of OSHA regulations), and assessment of rehabilitation services. Relevant government agencies, universities, corporate sector and occupational safety organizations need to play a proactive role in identifying priority areas and research capacity building. Funding for occupational injury should be commensurate with the magnitude of the problem.

  12. Analysis of Workplace Health Education Performed by Occupational Health Managers in Korea.

    PubMed

    Kim, Yeon-Ha; Jung, Moon-Hee

    2016-09-01

    To evaluate workplace health education as practiced by occupational health managers based on standardized job tasks and suggest priority tasks and areas to be trained. The study was conducted between November 10, 2013 and April 30, 2014. The tool used in this study was standardized job tasks of workplace health education for occupational health managers which was developed through methodological steps. It was evaluated by 233 worksite occupational health managers. Data were analyzed using SPSS 21.0. Predicting variables of workplace health education performance were the "analysis and planning" factor, type of enterprise, and form of management. Healthcare professionals and occupational health managers who managed the nonmanufacturing industry showed high importance and low performance level in "analysis and planning" factor. "Analysis and planning" skill is priority training area for healthcare professionals and occupational health managers who managed nonmanufacturing industry. It is necessary to develop a training curriculum for occupational health managers that include improving analysis of worksites and plans for a health education program. Copyright © 2016. Published by Elsevier B.V.

  13. Occupation-based practices and homelessness: A scoping review.

    PubMed

    Roy, Laurence; Vallée, Catherine; Kirsh, Bonnie H; Marshall, Carrie Anne; Marval, Rebecca; Low, Alissa

    2017-04-01

    Persons experiencing or at risk of homelessness have occupational needs that are seldom addressed in the Canadian system of care. The lack of documented evidence on occupational therapy practices in this field hinders the development of the profession. This article identifies current and potential practices that aim to enable or support the occupations of persons experiencing or at risk of homelessness. A scoping review was conducted, including evidence from both occupational therapy and non-occupational therapy sources. One hundred and seventy-eight papers were selected in the areas of occupational performance skills training, enrichment of occupational repertoire, employment/education, physical rehabilitation services, child/family services, community building, occupational transition from homeless to housed, literacy, and disaster relief. Occupational therapists can build environments and create opportunities that facilitate occupational engagement of individuals experiencing homelessness. Gaps in knowledge include the evaluation of occupational therapy practices, the Canadian context of family homelessness, and the cultural safety of occupational therapy interventions.

  14. Dying for work: The magnitude of US mortality from selected causes of death associated with occupation.

    PubMed

    Steenland, Kyle; Burnett, Carol; Lalich, Nina; Ward, Elizabeth; Hurrell, Joseph

    2003-05-01

    Deaths due to occupational disease and injury place a heavy burden on society in terms of economic costs and human suffering. We estimate the annual deaths due to selected diseases for which an occupational association is reasonably well established and quantifiable, by calculation of attributable fractions (AFs), with full documentation; the deaths due to occupational injury are then added to derive an estimated number of annual deaths due to occupation. Using 1997 US mortality data, the estimated annual burden of occupational disease mortality resulting from selected respiratory diseases, cancers, cardiovascular disease, chronic renal failure, and hepatitis is 49,000, with a range from 26,000 to 72,000. The Bureau of Labor Statistics estimates there are about 6,200 work-related injury deaths annually. Adding disease and injury data, we estimate that there are a total of 55,200 US deaths annually resulting from occupational disease or injury (range 32,200-78,200). Our estimate is in the range reported by previous investigators, although we have restricted ourselves more than others to only those diseases with well-established occupational etiology, biasing our estimates conservatively. The underlying assumptions and data used to generate the estimates are well documented, so our estimates may be updated as new data emerges on occupational risks and exposed populations, providing an advantage over previous studies. We estimate that occupational deaths are the 8th leading cause of death in the US, after diabetes (64,751) but ahead of suicide (30,575), and greater than the annual number of motor vehicle deaths per year (43,501). Copyright 2003 Wiley-Liss, Inc.

  15. Site occupancy and magnetic properties of Al-substituted M-type strontium hexaferrite

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Dixit, Vivek; Nandadasa, Chandani N.; Kim, Seong-Gon, E-mail: kimsg@ccs.msstate.edu

    2015-06-28

    We use first-principles total-energy calculations based on density functional theory to study the site occupancy and magnetic properties of Al-substituted M-type strontium hexaferrite SrFe{sub 12−x}Al{sub x}O{sub 19} with x = 0.5 and x = 1.0. We find that the non-magnetic Al{sup 3+} ions preferentially replace Fe{sup 3+} ions at two of the majority spin sites, 2a and 12k, eliminating their positive contribution to the total magnetization causing the saturation magnetization M{sub s} to be reduced as Al concentration x is increased. Our formation probability analysis further provides the explanation for increased magnetic anisotropy field when the fraction of Al is increased. Although Al{sup 3+}more » ions preferentially occupy the 2a sites at a low temperature, the occupation probability of the 12k site increases with the rise of the temperature. At a typical annealing temperature (>700 °C) Al{sup 3+} ions are much more likely to occupy the 12k site than the 2a site. Although this causes the magnetocrystalline anisotropy K{sub 1} to be reduced slightly, the reduction in M{sub s} is much more significant. Their combined effect causes the anisotropy field H{sub a} to increase as the fraction of Al is increased, consistent with recent experimental measurements.« less

  16. Competency-Based Business Math. Curriculum Guide. Bulletin No. 1814.

    ERIC Educational Resources Information Center

    Louisiana State Dept. of Education, Baton Rouge. Div. of Vocational Education.

    This is a curriculum guide for a course designed to enable students to master the necessary basic mathematics and business-related mathematics skills needed for entry into office and business occupations. The guide includes 11 instructional units: (1) "Fundamental Math Skills"; (2) "Fractions"; (3) "Decimals"; (4)…

  17. PATHWAYS TO HEALTH CAREERS, EXPLORING HEALTH OCCUPATIONS AND PROFESSIONS.

    ERIC Educational Resources Information Center

    Health Careers Council of Illinois, Chicago.

    CAREERS IN THE AREAS OF DENTISTRY, DIETETICS, MEDICAL RECORD LIBRARY SCIENCE, MEDICAL LABORATORY WORK, MEDICINE, NURSING, OCCUPATIONAL THERAPY, OPTOMETRY, PHARMACY, PHYSICAL THERAPY, PODIATRY, PUBLIC HEALTH, RADIOLOGIC TECHNOLOGY, SOCIAL WORK, VETERINARY MEDICINE, HOSPITAL ADMINISTRATION, AND OTHER HEALTH OCCUPATIONS ARE DESCRIBED IN TERMS OF THE…

  18. Reading on the Job: Schema, Function, and Depth.

    ERIC Educational Resources Information Center

    Jordan, William A.

    A study conducted at the Albuquerque Vocational-Technical Institute (New Mexico) investigated the need for occupation-related reading skills and resulted in recommendations for curriculum and instruction to meet those needs. The occupational areas examined include architectural drafting, office occupations, diesel mechanics, practical nursing,…

  19. Predicting impacts of future human population growth and development on occupancy rates of forest-dependent birds

    USGS Publications Warehouse

    Brown, Michelle L.; Donovan, Therese; Schwenk, W. Scott; Theobald, David M.

    2014-01-01

    Forest loss and fragmentation are among the largest threats to forest-dwelling wildlife species today, and projected increases in human population growth are expected to increase these threats in the next century. We combined spatially-explicit growth models with wildlife distribution models to predict the effects of human development on 5 forest-dependent bird species in Vermont, New Hampshire, and Massachusetts, USA. We used single-species occupancy models to derive the probability of occupancy for each species across the study area in the years 2000 and 2050. Over half a million new housing units were predicted to be added to the landscape. The maximum change in housing density was nearly 30 houses per hectare; however, 30% of the towns in the study area were projected to add less than 1 housing unit per hectare. In the face of predicted human growth, the overall occupancy of each species decreased by as much as 38% (ranging from 19% to 38% declines in the worst-case scenario) in the year 2050. These declines were greater outside of protected areas than within protected lands. Ninety-seven percent of towns experienced some decline in species occupancy within their borders, highlighting the value of spatially-explicit models. The mean decrease in occupancy probability within towns ranged from 3% for hairy woodpecker to 8% for ovenbird and hermit thrush. Reductions in occupancy probability occurred on the perimeters of cities and towns where exurban development is predicted to increase in the study area. This spatial approach to wildlife planning provides data to evaluate trade-offs between development scenarios and forest-dependent wildlife species.

  20. [Relationship between occupational stress and working ability of workers in a petroleum processing enterprise in high altitude area].

    PubMed

    Ma, X M; Kang, H L; Shi, C B; Li, Y; Wu, Y F; Liu, Z H; Wang, G; Lei, H Y

    2017-12-20

    Objective: To investigate the relationship between occupational stress and working ability of workers in a petroleum processing enterprise in a high altitude area. Methods: A total of 728 workers in a petroleum processing enterprise at an altitude of 2850 m were subjected to a survey using Occupational Stress Inventory (OSI) , Work Ability Index (WAI) Scale, Occupational Role Questionnaire (ORQ) , Personal Strain Questionnaire (PSQ) , and Personal Resource Questionnaire (PRQ) from May 2014 to August 2016. Results: Of the 728 workers, 55 (7.6%) had a poor working ability, moderate in 262 (35.9%) , and good in 411 (56.5%). There were significant differences in WAI between the workers with different types of work, sexes, ages, and working years ( P <0.05). There was a significant difference in WAI between different occupational stress groups ( P <0.05). WAI was negatively correlated with ORQ score and PSQ score ( r (s)=-0.387, P <0.05; r (s)=-0.467, P <0.05) and positively correlated with PRQ score ( r (s)=0.343, P <0.05). The multiple linear regression analysis showed that high ORQ score and PSQ score were the inhibitory factors for high WAI ( B =-0.058; B =-0.082) and high PRQ score was a contributing factor for high WAI ( B =0.029) . Conclusion: Occupational stress is an influencing factor for the working ability of workers in the petroleum processing enterprise in the high altitude area. Hypoxia in high altitude area may further reduce the working ability. In order to reduce occupational stress and improve work ability, it should be considered to strengthen skills training, improve the working environment, and pay attention to mental health.

  1. Interdisciplinary Residential Treatment of Posttraumatic Stress Disorder and Traumatic Brain Injury: Effects on Symptom Severity and Occupational Performance and Satisfaction

    PubMed Central

    Speicher, Sarah M.; Walter, Kristen H.

    2014-01-01

    OBJECTIVE. This study examined outcomes of an 8-wk residential treatment program for veterans with posttraumatic stress disorder (PTSD) and a history of traumatic brain injury (TBI). METHOD. Twenty-six veterans completed the Canadian Occupational Performance Measure, Clinician-Administered PTSD Scale, Beck Depression Inventory–2nd Edition, and PTSD Checklist before and after treatment. RESULTS. Veterans demonstrated significant improvements in occupational performance and satisfaction with their performance, as well as in PTSD and depression symptom severity after residential PTSD/TBI treatment. Additionally, improvements in occupational performance and satisfaction were associated with decreases in depression symptom severity. CONCLUSION. Although preliminary, results suggest that veterans with PTSD and a history of TBI experienced significant decreases in PTSD and depression symptom severity and improvement in self-perception of performance and satisfaction in problematic occupational areas. Changes in occupational areas and depression symptom severity were related, highlighting the importance of interdisciplinary treatment. PMID:25005504

  2. The Role of the Occupational Therapist in Disaster Areas: Systematic Review

    PubMed Central

    Parente, M.; De Santis, R.; Esposito, G.; Santilli, V.

    2017-01-01

    Background Disasters are increasingly more frequent events on our planet. During disaster the role of the occupational therapist will require a more specific operative framework within nongovernmental organizations and community health services. Design Systematic review. Objective The aim of this study is to evaluate the evidence that highlight occupational therapist's role in disaster area through a systematic review. Materials and Methods Research on MEDLINE was performed. All articles from 2005 to 2015 concerning rehabilitation and occupational therapy in disaster areas were included. Results Ten studies were selected to be included in this review. Four interesting points emerged: the importance of having rehabilitation intervention in postdisaster situations, the necessity to include a rehabilitation team in the early phase of disaster response, the need to provide a method to address the difficult evacuation, and finding the safest method of transport of people with preexisting disabilities and new injuries. Conclusions The amount of evidence with respect to specific intervention of the occupational therapist's role in a disaster situation is limited. However some evidence suggests that it could be a good means for reducing the number of medical complications and deaths of persons with preexisting disabilities. The evidences found highlight the necessity to create a multidisciplinary team addressing needs in disasters situation, in which the occupational therapist could certainly contribute. PMID:29097975

  3. Effect of particle size on the experimental dissolution and auto-aluminization processes of K-vermiculite

    NASA Astrophysics Data System (ADS)

    Viennet, Jean-Christophe; Hubert, Fabien; Tertre, Emmanuel; Ferrage, Eric; Robin, Valentin; Dzene, Liva; Cochet, Carine; Turpault, Marie-Pierre

    2016-05-01

    In acidic soils, the fixation of Al in the interlayer spaces of 2:1 clay minerals and the subsequent formation of hydroxyl interlayer minerals (HIMs) are known to reduce soil fertility. The resulting crystal structure of HIMs consist of complex mixed-layer minerals (MLMs) with contrasting relative proportions of expandable, hydroxy-interlayers (HI) and illite layers. The present study aims to experimentally assess the influence of particle size on the formation of such complex HIMs for vermiculite saturated with potassium (K). Based on chemical and structural data, this study reports the dissolution and Al-interlayer occupancy of three size fractions (0.1-0.2, 1-2 and 10-20 μm) of K-vermiculite, which were obtained at pH = 3 by using stirred flow-through reactors. The Al-interlayer occupancies were ordered 0.1-0.2 μm < 10-20 μm < 1-2 μm even though the dissolution rate (in molvermiculite g-1 s-1) increases with decreasing particle size. For fine particles (0.1-0.2 μm), a rapid but low Al-interlayer occupancy during the transitory state and a null rate in the steady-state were evidenced and interpreted as indicating (i) a rapid but limited K+ interlayer exchange during the first step of the overall reactions and (ii) a stoichiometric dissolution of the crystal (TOT layer + interlayer) in the steady-state. By contrast, although the stoichiometric dissolution of the TOT layer is reached in the steady-state for the coarsest fractions (10-20 and 1-2 μm), the Al-interlayer occupancies continue to evolve due to the exchange of interlayer K+, which continues to progress for a longer duration. The mechanism of auto-aluminization is interpreted in the present study as multiple processes that involve (i) the dissolution of the mineral under acidic conditions, (ii) the interlayer diffusion of initial interlayer cations and their exchange with those from the aqueous phase and (iii) the fixation of interlayer aluminum. Competition between the kinetics of ion-exchange reactions and that of mineral dissolution is responsible for the above Al-interlayer occupancy order among the particle sizes (i.e., 0.1-0.2 μm < 10-20 μm < 1-2 μm). Moreover, this mechanism may be the cause of complex mineralogical structures such as mixed-layer minerals, which are commonly found in the clay-size fraction of acidic soils.

  4. Communication: Density functional theory model for multi-reference systems based on the exact-exchange hole normalization

    NASA Astrophysics Data System (ADS)

    Laqua, Henryk; Kussmann, Jörg; Ochsenfeld, Christian

    2018-03-01

    The correct description of multi-reference electronic ground states within Kohn-Sham density functional theory (DFT) requires an ensemble-state representation, employing fractionally occupied orbitals. However, the use of fractional orbital occupation leads to non-normalized exact-exchange holes, resulting in large fractional-spin errors for conventional approximative density functionals. In this communication, we present a simple approach to directly include the exact-exchange-hole normalization into DFT. Compared to conventional functionals, our model strongly improves the description for multi-reference systems, while preserving the accuracy in the single-reference case. We analyze the performance of our proposed method at the example of spin-averaged atoms and spin-restricted bond dissociation energy surfaces.

  5. Communication: Density functional theory model for multi-reference systems based on the exact-exchange hole normalization.

    PubMed

    Laqua, Henryk; Kussmann, Jörg; Ochsenfeld, Christian

    2018-03-28

    The correct description of multi-reference electronic ground states within Kohn-Sham density functional theory (DFT) requires an ensemble-state representation, employing fractionally occupied orbitals. However, the use of fractional orbital occupation leads to non-normalized exact-exchange holes, resulting in large fractional-spin errors for conventional approximative density functionals. In this communication, we present a simple approach to directly include the exact-exchange-hole normalization into DFT. Compared to conventional functionals, our model strongly improves the description for multi-reference systems, while preserving the accuracy in the single-reference case. We analyze the performance of our proposed method at the example of spin-averaged atoms and spin-restricted bond dissociation energy surfaces.

  6. CAREER GUIDE FOR DEMAND OCCUPATIONS.

    ERIC Educational Resources Information Center

    LEE, E.R.; WELCH, JOHN L.

    THIS PUBLICATION UPDATES THE "CAREER GUIDE FOR DEMAND OCCUPATIONS" PUBLISHED IN 1959 AND PROVIDES COUNSELORS WITH INFORMATION ABOUT OCCUPATIONS IN DEMAND IN MANY AREAS WHICH REQUIRE PREEMPLOYMENT TRAINING. IT PRESENTS, IN COLUMN FORM, THE EDUCATION AND OTHER TRAINING USUALLY REQUIRED BY EMPLOYERS, HIGH SCHOOL SUBJECTS OF PARTICULAR PERTINENCE TO…

  7. 2007 motor vehicle occupant safety survey : use of and support for emergency medical services systems.

    DOT National Transportation Integrated Search

    2009-09-01

    The Motor Vehicle Occupant Safety Survey (MVOSS) is a national telephone survey administered by NHTSA on a periodic basis to obtain data on attitudes, knowledge, and self-reported behavior primarily in areas of occupant protection. The sample is comp...

  8. Up, Up, Up, and Away: Trends in Computer Occupations.

    ERIC Educational Resources Information Center

    Howard, H. Philip; Rothstein, Debra E.

    1981-01-01

    Discusses the technological changes that have occurred in computers and the recent and projected employment trends in the major computer occupations. Implications of growth in computer occupations are examined in five areas: education, recruiting techniques, salaries, competition between industry and education, and employment opportunities. (CT)

  9. Optimum contracted-for water supply for hotels in arid coastal regions.

    PubMed

    Lamei, A; von Münch, E; van der Zaag, P; Imam, E

    2009-01-01

    Hotels in arid coastal areas use mainly desalinated water for their domestic water demands, and treated wastewater for irrigating green areas. Private water companies supply these hotels with their domestic water needs. There is normally a contractual agreement stating a minimum requirement that has to be supplied by the water company and that the hotel management has to pay for regardless of its actual consumption ("contracted-for water supply"). This paper describes a model to determine what value a hotel should choose for its contracted-for water supply in order to minimize its total annual water costs. An example from an arid coastal tourism-dominated city is presented: Sharm El Sheikh, Egypt.The managers of hotels with expected high occupancy rates (74% and above) can contract for more than 80%. On the other hand, hotels with expected lower occupancy rates (60% and less) can contract for less than 70% of the peak daily domestic water demand. With a green area ratio of 40 m(2)/room or less, an on-site wastewater treatment plant can satisfy the required irrigation demand for an occupancy rate as low as 42%. Increasing the ratio of green irrigated area to 100 m(2)/room does not affect the contracted-for water supply at occupancy rates above 72%; at lower occupancy rates, however, on-site treated wastewater is insufficient for irrigating the green areas. Increasing the green irrigated area to 120 m(2)/room increases the need for additional water, either from externally sourced treated wastewater or potable water. The cost of the former is much lower than the latter (0.58 versus 1.52 to 2.14 US$/m(3) in the case study area).

  10. Office Occupations Curriculum Course Guide Postsecondary. Vocational Education, 1981.

    ERIC Educational Resources Information Center

    Aucoin, Margaret; And Others

    This publication is a curriculum guide for postsecondary office occupations education programs in Louisiana. The guide details courses to be taken in order for a student to major in the accounting, secretarial, or typist-clerk curriculum areas. Each of these three curriculum areas contains minimum requirements, exit points, hourly schedules, and…

  11. Career Exploration in the Physical Sciences.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    The purpose of the teacher's guide is to acquaint ninth grade students with the areas of physical science and the possible occupations within those areas. By exploring some of the basic concepts of chemistry, physics, metallurgy, and geology, students gain insight into the knowledge and skill required by those in occupations related to these…

  12. Attitudes of Suburban Chicago Teachers Toward Applied Biological and Agricultural Occupations Programs.

    ERIC Educational Resources Information Center

    Thomas, Hollie B.; Jackson, Franklin D. R.

    The attitudes of teachers in a metropolitan area toward starting programs in applied biological and agricultural occupations and other vocational areas were studied in order to establish a base line of attitudes with which program implementation must start. Specific objectives were to: (1) determine the attitude of teachers toward offering such…

  13. Attitudes of Metropolitan Chicago Administrators Toward Applied Biological and Agricultural Occupations Programs.

    ERIC Educational Resources Information Center

    Thomas, Hollie B.; And Others

    The attitudes of administrators in a metropolitan area toward starting programs in applied and agricultural occupations and other vocational areas were studied in order to determine their willingness in promoting the programs. The sample consisted of 120 school administrators from the city of Chicago and contiguous suburbs. Data were collected…

  14. Competency Test Items for Fundamentals of Agribusiness and Natural Resource Occupations. A Report of Research.

    ERIC Educational Resources Information Center

    McGhee, Max B.; Cheek, Jimmy G.

    An activity was undertaken to develop written criterion-referenced tests for each of the instructional areas comprising the Fundamentals of Agribusiness and Natural Resources Occupations Program. Designed to be taught at the ninth grade level, the program consists of six major instructional areas: agribusiness management, animal science, plant…

  15. OCCUPATIONAL OPPORTUNITIES AND TRAINING NEEDS FOR NONFARM AGRICULTURAL JOBS IN THE METROPOLITAN AREAS OF LOUISIANA.

    ERIC Educational Resources Information Center

    CURTIS, C.M.; MONDART, C.L.

    A SURVEY OF 1,067 BUSINESSES OR AGENCIES HANDLING FARM PRODUCTS OR PROVIDING AGRICULTURAL SERVICE IN SEVEN METROPOLITAN AREAS IDENTIFIED PRESENT AND EMERGING AGRICULTURAL OCCUPATIONS OTHER THAN FARMING AND RANCHING FOR WHICH INSTRUCTION IN VOCATIONAL AGRICULTURE SHOULD BE MADE AVAILABLE. DATA PROVIDED EMPLOYEE INFORMATION FOR SELECTED OCCUPATIONAL…

  16. Business Telephone Etiquette. Office Occupations. Audiovisual Package. Instructor's Guide. Student Activity Packet.

    ERIC Educational Resources Information Center

    Johnson, Diane E.

    This instructor's guide and student activity packet (together with a slide/tape presentation not available here) comprise a module for the postsecondary office occupations education competency area of business telephone etiquette. Modules for other competency areas are available separately (see note). The purpose stated for the module is to help…

  17. Language Discordance and Patient-Centered Care in Occupational Therapy: A Case Study

    PubMed Central

    Martinez, Jenny; Leland, Natalie

    2017-01-01

    The accumulative burden of a growing non-English speaking minority population and health disparities in the United States demonstrate the urgency of examining occupational therapy practices and defining care that is timely, effective, safe, and patient-centered. In this context, we investigate an occupational therapy episode of care from the perspectives of patient, caregiver, and primary occupational therapy care provider. Treatment sessions were observed and one-on-one semi-structured interviews were conducted with the participants. Several themes describing areas of concern in communication and care delivery emerged, including expectations for care, the therapy relationship, professional identity, and pragmatic constraints. The use of untrained interpreters compromised treatment effectiveness and safety. This case highlights potential areas of concern in therapy when working with a diverse patient population. Abundant opportunities exist for occupational therapy to situate itself as an equitable, responsive, valuable, and essential service. PMID:26460475

  18. The Area Coverage of Geophysical Fields as a Function of Sensor Field-of View

    NASA Technical Reports Server (NTRS)

    Key, Jeffrey R.

    1994-01-01

    In many remote sensing studies of geophysical fields such as clouds, land cover, or sea ice characteristics, the fractional area coverage of the field in an image is estimated as the proportion of pixels that have the characteristic of interest (i.e., are part of the field) as determined by some thresholding operation. The effect of sensor field-of-view on this estimate is examined by modeling the unknown distribution of subpixel area fraction with the beta distribution, whose two parameters depend upon the true fractional area coverage, the pixel size, and the spatial structure of the geophysical field. Since it is often not possible to relate digital number, reflectance, or temperature to subpixel area fraction, the statistical models described are used to determine the effect of pixel size and thresholding operations on the estimate of area fraction for hypothetical geophysical fields. Examples are given for simulated cumuliform clouds and linear openings in sea ice, whose spatial structures are described by an exponential autocovariance function. It is shown that the rate and direction of change in total area fraction with changing pixel size depends on the true area fraction, the spatial structure, and the thresholding operation used.

  19. Population Attributable and Preventable Fractions: Cancer Risk Factor Surveillance, and Cancer Policy Projection

    PubMed Central

    Shield, Kevin D.; Parkin, D. Maxwell; Whiteman, David C.; Rehm, Jürgen; Viallon, Vivian; Micallef, Claire Marant; Vineis, Paolo; Rushton, Lesley; Bray, Freddie; Soerjomataram, Isabelle

    2016-01-01

    The proportions of new cancer cases and deaths that are caused by exposure to risk factors and that could be prevented are key statistics for public health policy and planning. This paper summarizes the methodologies for estimating, challenges in the analysis of, and utility of, population attributable and preventable fractions for cancers caused by major risk factors such as tobacco smoking, dietary factors, high body fat, physical inactivity, alcohol consumption, infectious agents, occupational exposure, air pollution, sun exposure, and insufficient breastfeeding. For population attributable and preventable fractions, evidence of a causal relationship between a risk factor and cancer, outcome (such as incidence and mortality), exposure distribution, relative risk, theoretical-minimum-risk, and counterfactual scenarios need to be clearly defined and congruent. Despite limitations of the methodology and the data used for estimations, the population attributable and preventable fractions are a useful tool for public health policy and planning. PMID:27547696

  20. Searching for the self: an identity control theory approach to triggers of occupational exploration.

    PubMed

    Anderson, Katherine L; Mounts, Nina S

    2012-01-01

    Identity control theory researchers have found evidence for two processes of identity development (identity defense and identity change) and have theorized a third process (identity exploration). College students (N = 123) self-rated as high or low in occupational identity certainty and importance received self-discrepant feedback to induce identity disturbance, and dependent measures of identity defense, identity change, and identity exploration were obtained. As predicted, high certainty about identity standards led to identity defense, while low certainty led to identity change. Although an interaction between certainty and importance was hypothesized to predict identity exploration, results showed that the two operated independently. Low certainty predicted exploration of additional occupational areas, whereas high importance predicted exploration of self, environment, and additional occupational areas.

  1. An Analysis of the Landscaping Occupation.

    ERIC Educational Resources Information Center

    Stemple, Lynn L.; Dilley, John E.

    The general purpose of the occupational analysis is to provide workable, basic information dealing with the many and varied duties performed in the landscape services occupation. Depending on the preparation and abilities of the individual student, he may enter the landscape area as (1) nursery worker, (2) landscape planter, (3) landscape…

  2. Emerging Careers: Occupations for Post-Industrial Society.

    ERIC Educational Resources Information Center

    Feingold, S. Norman

    1984-01-01

    The future holds in store a multitude of exciting new occupations, from treasure hunting to moon mining. Discussed are future careers in many areas, including the information industry, ocean industry, robotics, health, energy, and small business. Future occupational titles are listed and 54 ways to get a job are discussed. (RM)

  3. Jobs in Manufacturing. Job Family Series.

    ERIC Educational Resources Information Center

    Science Research Associates, Inc., Chicago, IL.

    The instructional booklet explores various occupations in the occupational cluster of manufacturing. In the first chapter, the student is briefly introduced to the occupational cluster concept and to the general area of manufacturing. Chapter 2 describes jobs involved in the production of materials and processing of goods. Chapter 3 discusses…

  4. Occupational Training Programs in Illinois Secondary Schools. Bulletin No. 44-1173.

    ERIC Educational Resources Information Center

    Illinois State Board of Vocational Education and Rehabilitation, Springfield. Div. of Vocational and Technical Education.

    The directory is an unannotated list of approved occupational training programs found in the secondary schools of Illinois. Entries are listed alphabetically by location. Counties are listed with each school location to differentiate between similar location names. Programs are grouped under five occupational areas: applied biological and…

  5. An Analysis of the Auto Mechanic Occupation.

    ERIC Educational Resources Information Center

    Conner, Michael; Thoman, LeRoy

    The general purpose of the occupational analysis is to provide workable, basic information dealing with the many and varied duties performed in the auto mechanic occupation. It identifies the broad area of skills and knowledge necessary to perform various tasks involved in diagnosis, maintenance, and repair of automotive systems. Selected…

  6. Guest-Service Agent. Teacher Edition.

    ERIC Educational Resources Information Center

    Al-Harake, Mounzer

    This teacher's guide for the hospitality and tourism industry is designed to include the entry-level competencies students will need to enter any of the occupational areas identified in the front-desk section of the lodging occupations cluster. These occupations include front-desk clerk, cashier, telephone operator, guest-service agent,…

  7. Occupational Inheritance in Service Academy Cadets and Midshipmen

    ERIC Educational Resources Information Center

    Roller, Brain; Doerries, Lee E.

    2008-01-01

    Occupational inheritance refers to the phenomenon where sons and daughters follow in the career paths of their parents. Historically this has been documented in the areas of engineering, medicine and education. This study investigated the phenomenon of occupational inheritance as it pertains to military service. Archival data provided by the…

  8. Identification of Occupational Competencies in Services for the Electromechanical Cluster Occupations.

    ERIC Educational Resources Information Center

    Stone, Robert D.

    The research study was undertaken to provide data on skills and competencies to aid persons developing curricula for electromechanical technician training programs. Through a 73.8 percent return of 212 questionnaires distributed to Iowa electromechanical technicians, five occupational areas were identified as representative: residential appliance…

  9. [Nanomaterials--proposals of occupational exposure limits in the world and hygiene standards in Poland].

    PubMed

    Swidwińska-Gajewska, Anna Maria; Czerczak, Sławomir

    2013-01-01

    Currently, there are no legally binding workplace exposure limits for substances in the form of nanoobjects. There are different ap proaches to risk assessment and determination of occupational exposure limits. The purpose of this article is to compare exposure levels in the work environment proposed by international organizations and world experts, as well as the assumptions and methods used for their estimation. This paper presents the proposals of the National Institute for Public Health and the Environment in the Netherlands (RIVM), the New Energy and Industrial Technology Development Organization in Japan (NEDO) and the National Institute for Occupational Safety and Health in the USA (NIOSH). The authors also discuss the reports on the levels for carbon nanotubes (Baytubes and Nanocyl) proposed by Pauluhn and Luizi, the derived no-effect levels (DNEL) complying with the REACH Regulation, proposed by experts under the 7th Framework Programme of the European Commission, coordinated by Professor Vicki Stone (ENRHES), and alternative estimation levels for poorly soluble particles by Pauluhn. The issue was also raised whether the method of determining maximum admissible concentrations in the work environment, currently used in Poland, is adequate for nanoobjects. Moreover, the introduction of nanoreference values, as proposed by RIVM, the definition of a new fraction for particles of 1-100 nm, taking into account the surface area and activity of the particles, and an adequate estimation of uncertainty factors seem to be worth considering. Other important, if not key issues are the appropriate measurement (numerical concentration, surface concentration, particle size distribution), as well as the methodology and equipment accessibility to all employers responsible for a reliable risk assessment of exposure to nanoparticles in the work environment.

  10. Work organization research at the National Institute for Occupational Safety and Health.

    PubMed

    Rosenstock, L

    1997-01-01

    For 25 years, the National Institute for Occupational Safety and Health (NIOSH) has conducted and sponsored laboratory, field, and epidemiological studies that have helped define the role of work organization factors in occupational safety and health. Research has focused on the health effects of specific job conditions, occupational stressors in specific occupations, occupational difference in the incidence of stressors and stress-related disorders, and intervention strategies. NIOSH and the American Psychological Association have formalized the concept of occupational health psychology and developed a postdoctoral training program. The National Occupational Research Agenda recognizes organization of work as one of 21 national occupational safety and health research priority areas. Future research should focus on industries, occupations, and populations at special risk; the impact of work organization on overall health; the identification of healthy organization characteristics; and the development of intervention strategies.

  11. Cytogenetic instability in populations with residential proximity to open-pit coal mine in Northern Colombia in relation to PM10 and PM2.5 levels.

    PubMed

    Espitia-Pérez, Lyda; da Silva, Juliana; Espitia-Pérez, Pedro; Brango, Hugo; Salcedo-Arteaga, Shirley; Hoyos-Giraldo, Luz Stella; de Souza, Claudia T; Dias, Johnny F; Agudelo-Castañeda, Dayana; Valdés Toscano, Ana; Gómez-Pérez, Miguel; Henriques, João A P

    2018-02-01

    Epidemiological studies indicate that living in proximity to coal mines is correlated with numerous diseases including cancer, and that exposure to PM 10 and PM 2.5 components could be associated with this phenomenon. However, the understanding of the mechanisms by which PM exerts its adverse effects is still incomplete and comes mainly from studies in occupationally exposed populations. The aims of this study were to: (1) evaluate DNA damage in lymphocytes assessing the cytokinesis-block micronucleus cytome assay (CBMN-cyt) parameters; (2) identify aneugenic or clastogenic effects in lymphocytes of exposed populations using CREST immunostaining for micronuclei; (3) evaluate multi-elemental composition of atmospheric particulate matter; and (4) verify relation between the DNA damage and PM 2.5 and PM 10 levels around the mining area. Analysis revealed a significant increase in micronuclei frequency in binucleated (MNBN) and mononucleated (MNMONO) cells of individuals with residential proximity to open-pit coal mines compared to residents from non-mining areas. Correlation analysis demonstrated a highly significant association between PM 2.5 levels, MNBN frequencies and CREST+ micronuclei induction in exposed residents. These results suggest that PM 2.5 fraction generated in coal mining activities may induce whole chromosome loss (aneuploidy) preferentially, although there are also chromosome breaks. Analysis of the chemical composition of PM 2.5 by PIXE demonstrated that Si, S, K and Cr concentrations varied significantly between coal mining and reference areas. Enrichment factor values (EF) showed that S, Cr and Cu were highly enriched in the coal mining areas. Compared to reference area, mining regions had also higher concentrations of extractable organic matter (EOM) related to nonpolar and polar compounds. Our results demonstrate that PM 2.5 fraction represents the most important health risk for residents living near open-pit mines, underscoring the need for incorporation of ambient air standards based on PM 2.5 measures in coal mining areas. Copyright © 2017. Published by Elsevier Inc.

  12. Trace metals adhered to urban sediments. Results from fieldwork in Poços de Caldas, Brazil

    NASA Astrophysics Data System (ADS)

    Isidoro, Jorge; Silveira, Alexandre; Júnior, José; Poleto, Cristiano; de Lima, João; Gonçalves, Flávio; Alvarenga, Lívia

    2016-04-01

    The urbanization process has consequences such as the introduction of new sources of pollution and changes in the natural environment, like increase of impervious areas that accumulate pollutants between rainfall events. The pollution caused by the washing of accumulated sediment on the gutters, ultimately carried to water bodies through the stormwater drainage system, stands out in this process. This study aimed to quantify and characterize the sediments accumulated in the gutters of roads in an urban area of Poços de Caldas (MG), Brazil. Fieldwork took place during the period of 21.05.2013 to 27.08.2013. Main goal was to investigate the process of accumulation of dry sediments on impervious surfaces and find how this process relates with the urban occupation. More specific goals were to quantify the average mass and characterize the granulometric distribution of accumulated sediments, and identify the occurrence of trace metals Zn, Cu, Ni, Cd, Cu and Pb in the fraction of sediments with diameter smaller or equal to 63μm. The samples were weighed to find the aggregate mass and then sieved through meshes of 63μm, 125μm, 250μm, 600μm, 1180μm, and 2000μm for the granulometric analysis. Samples of the sediment fraction smaller than 63μm of diameter were subjected to analysis by Energy Dispersive X-Ray Fluorescence (EDXRF) and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) for the identification of trace metals. We found that the aggregate mass of accumulated sediments varies in time and space and is particularly influenced by the land use of the sampling areas. Areas under construction produced more sediments than built areas or areas without construction. This study may serve as an input for creating diffuse pollution control and mitigation strategies towards the reduction of accumulated pollutants in the urban environment of Poços de Caldas. Pb and Zn shown the highest concentrations. The heavy metal concentration decreases after wet periods, showing that runoff carries these elements.

  13. Population Health and Occupational Therapy.

    PubMed

    Braveman, Brent

    2016-01-01

    Occupational therapy practitioners play an important role in improving the health of populations through the development of occupational therapy interventions at the population level and through advocacy to address occupational participation and the multiple determinants of health. This article defines and explores population health as a concept and describes the appropriateness of occupational therapy practice in population health. Support of population health practice as evidenced in the official documents of the American Occupational Therapy Association and the relevance of population health for occupational therapy as a profession are reviewed. Recommendations and directions for the future are included related to celebration of the achievements of occupational therapy practitioners in the area of population health, changes to the Occupational Therapy Practice Framework and educational accreditation standards, and the importance of supporting, recognizing, rewarding, and valuing occupational therapy practitioners who assume roles in which direct care is not their primary function. Copyright © 2016 by the American Occupational Therapy Association, Inc.

  14. Occupational asphalt is not associated with head and neck cancer

    PubMed Central

    Fogleman, E. V.; Eliot, M.; Michaud, D. S.; Nelson, H. H.; McClean, M. D.

    2015-01-01

    Background Epidemiologic studies that evaluate the relationship between occupational asphalt exposure and head and neck cancer have had a limited ability to control for known risk factors such as smoking, alcohol and human papillomavirus (HPV). Aims To better elucidate this relationship by including known risk factors in a large case–control study of head and neck squamous cell carcinoma (HNSCC) from the greater Boston area. Methods We analysed the relationship between occupational asphalt exposure and HNSCC among men in the Greater Boston area of Massachusetts. Analyses were conducted using unconditional multivariable logistic regression, performed with adjustments for age, race, education, smoking, alcohol consumption and HPV serology. Results There were 753 cases and 913 controls. No associations between HNSCC and occupational asphalt exposure (neither among ever-exposed nor by occupational duration) were observed for exposures in any occupation or those restricted to the construction industry. We also observed no associations in subgroup analyses of never-smokers and ever-smokers. Adjusting for known risk factors further reduced the estimated effect of asphalt exposure on HNSCC risk. Conclusions We found no evidence for an association between occupational asphalt exposure and HNSCC. The null findings from this well-controlled analysis could suggest that the risk estimates stemming from occupational cohort studies may be overestimated due to uncontrolled confounding and enhance the literature available for weighing cancer risk from occupational exposure to bitumen. PMID:26272381

  15. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Business and Office Occupations.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of business and…

  16. MANPOWER NEEDS AND EMPLOYMENT OPPORTUNITIES FOR WORKERS NEEDING KNOWLEDGE AND SKILL IN AGRICULTURE. TECHNICAL EDUCATION IN AND FOR RURAL AREAS, REPORT NUMBER 2.

    ERIC Educational Resources Information Center

    WARMBROD, J. ROBERT

    THREE TYPES OF FIRMS IN A 14-COUNTY AREA WERE SURVEYED TO DETERMINE THE NUMBER OF WORKERS WITH AGRICULTURAL COMPETENCIES REQUIRED IN THE OFF-FARM AGRICULTURAL OCCUPATIONS AND TO COMPARE EMPLOYMENT OPPORTUNITIES IN FARM AND OFF-FARM AGRICULTURAL OCCUPATIONS. OF 77,868 WORKERS IN 384 FIRMS IN AREAS OF LESS THAN 25,000 POPULATION, 18 PERCENT WERE IN…

  17. Early markers of airways inflammation and occupational asthma: Rationale, study design and follow-up rates among bakery, pastry and hairdressing apprentices

    PubMed Central

    Tossa, Paul; Bohadana, Abraham; Demange, Valérie; Wild, Pascal; Michaely, Jean-Pierre; Hannhart, Bernard; Paris, Christophe; Zmirou-Navier, Denis

    2009-01-01

    Background Occupational asthma is a common type of asthma caused by a specific agent in the workplace. The basic alteration of occupational asthma is airways inflammation. Although most patients with occupational asthma are mature adults, there is evidence that airways inflammation starts soon after inception of exposure, including during apprenticeship. Airways hyper responsiveness to methacholine is a valid surrogate marker of airways inflammation, which has proved useful in occupational epidemiology. But it is time-consuming, requires active subject's cooperation and is not readily feasible. Other non-invasive and potentially more useful tests include the forced oscillation technique, measurement of fraction exhaled nitric oxide, and eosinophils count in nasal lavage fluid. Methods and design This study aims to investigate early development of airways inflammation and asthma-like symptoms in apprentice bakers, pastry-makers and hairdressers, three populations at risk of occupational asthma whose work-related exposures involve agents of different nature. The objectives are to (i) examine the performance of the non-invasive tests cited above in detecting early airways inflammation that might eventually develop into occupational asthma; and (ii) evaluate whether, and how, constitutional (e.g. atopy) and behavioural (e.g. smoking) risk factors for occupational asthma modulate the effects of allergenic and/or irritative substances involved in these occupations. This paper presents the study rationale and detailed protocol. Discussion Among 441 volunteers included at the first visit, 354 attended the fourth one. Drop outs were investigated and showed unrelated to the study outcome. Sample size and follow-up participation rates suggest that the data collected in this study will allow it to meet its objectives. PMID:19389222

  18. Early markers of airways inflammation and occupational asthma: rationale, study design and follow-up rates among bakery, pastry and hairdressing apprentices.

    PubMed

    Tossa, Paul; Bohadana, Abraham; Demange, Valérie; Wild, Pascal; Michaely, Jean-Pierre; Hannhart, Bernard; Paris, Christophe; Zmirou-Navier, Denis

    2009-04-23

    Occupational asthma is a common type of asthma caused by a specific agent in the workplace. The basic alteration of occupational asthma is airways inflammation. Although most patients with occupational asthma are mature adults, there is evidence that airways inflammation starts soon after inception of exposure, including during apprenticeship. Airways hyper responsiveness to methacholine is a valid surrogate marker of airways inflammation, which has proved useful in occupational epidemiology. But it is time-consuming, requires active subject's cooperation and is not readily feasible. Other non-invasive and potentially more useful tests include the forced oscillation technique, measurement of fraction exhaled nitric oxide, and eosinophils count in nasal lavage fluid. This study aims to investigate early development of airways inflammation and asthma-like symptoms in apprentice bakers, pastry-makers and hairdressers, three populations at risk of occupational asthma whose work-related exposures involve agents of different nature. The objectives are to (i) examine the performance of the non-invasive tests cited above in detecting early airways inflammation that might eventually develop into occupational asthma; and (ii) evaluate whether, and how, constitutional (e.g. atopy) and behavioural (e.g. smoking) risk factors for occupational asthma modulate the effects of allergenic and/or irritative substances involved in these occupations. This paper presents the study rationale and detailed protocol. Among 441 volunteers included at the first visit, 354 attended the fourth one. Drop outs were investigated and showed unrelated to the study outcome. Sample size and follow-up participation rates suggest that the data collected in this study will allow it to meet its objectives.

  19. Occupational asphalt is not associated with head and neck cancer.

    PubMed

    Fogleman, E V; Eliot, M; Michaud, D S; Nelson, H H; McClean, M D; Langevin, S M; Kelsey, K T

    2015-10-01

    Epidemiologic studies that evaluate the relationship between occupational asphalt exposure and head and neck cancer have had a limited ability to control for known risk factors such as smoking, alcohol and human papillomavirus (HPV). To better elucidate this relationship by including known risk factors in a large case-control study of head and neck squamous cell carcinoma (HNSCC) from the greater Boston area. We analysed the relationship between occupational asphalt exposure and HNSCC among men in the Greater Boston area of Massachusetts. Analyses were conducted using unconditional multivariable logistic regression, performed with adjustments for age, race, education, smoking, alcohol consumption and HPV serology. There were 753 cases and 913 controls. No associations between HNSCC and occupational asphalt exposure (neither among ever-exposed nor by occupational duration) were observed for exposures in any occupation or those restricted to the construction industry. We also observed no associations in subgroup analyses of never-smokers and ever-smokers. Adjusting for known risk factors further reduced the estimated effect of asphalt exposure on HNSCC risk. We found no evidence for an association between occupational asphalt exposure and HNSCC. The null findings from this well-controlled analysis could suggest that the risk estimates stemming from occupational cohort studies may be overestimated due to uncontrolled confounding and enhance the literature available for weighing cancer risk from occupational exposure to bitumen. © The Author 2015. Published by Oxford University Press on behalf of the Society of Occupational Medicine. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  20. The relationship between various exposure metrics for elongate mineral particles (EMP) in the taconite mining and processing industry.

    PubMed

    Hwang, Jooyeon; Ramachandran, Gurumurthy; Raynor, Peter C; Alexander, Bruce H; Mandel, Jeffrey H

    2014-01-01

    Different dimensions of elongate mineral particles (EMP) have been proposed as being relevant to respiratory health end-points such as mesothelioma and lung cancer. In this article, a methodology for converting personal EMP exposures measured using the National Institute for Occupational Safety and Health (NIOSH) 7400/7402 methods to exposures based on other size-based definitions has been proposed and illustrated. Area monitoring for EMP in the taconite mines in Minnesota's Mesabi Iron Range was conducted using a Micro Orifice Uniform Deposit Impactor (MOUDI) size-fractionating sampler. EMP on stages of the MOUDI were counted and sized according to each EMP definition using an indirect-transfer transmission electron microscopy (ISO Method 13794). EMP were identified using energy-dispersive x-ray and electron diffraction analysis. Conversion factors between the EMP counts based on different definitions were estimated using (1) a linear regression model across all locations and (2) a location-specific ratio of the count based on each EMP definition to the NIOSH 7400/7402 count. The highest fractions of EMP concentrations were found for EMP that were 1-3 μm in length and 0.2-0.5 μm in width. Therefore, the current standard NIOSH Method 7400, which only counts EMP >5 μm in length and ≥ 3 in aspect ratio, may underestimate amphibole EMP exposures. At the same time, there was a high degree of correlation between the exposures estimated according to the different size-based metrics. Therefore, the various dimensional definitions probably do not result in different dose-response relationships in epidemiological analyses. Given the high degree of correlation between the various metrics, a result consistent with prior research, a more reasonable metric might be the measurement of all EMP irrespective of size. [Supplementary materials are available for this article. Go to the publisher's online edition of Journal of Occupational and Environmental Hygiene for the following free supplemental resource: figures detailing EMP concentration.].

  1. The current status of occupational health in China

    PubMed Central

    Zhang, Xueyan; Li, Tao

    2010-01-01

    Objective This study aimed to summarize the major health problems among Chinese workers, the strategies and measures for occupational hazards control, the network and organizations of occupational health administration, and the achievements and current challenges of occupational health in China. Results The situation of occupational health was found to be still serious in China. Enterprises with occupational hazards were widely distributed, the exposed population and cases of occupational diseases were numerous, and occupational risks were being transferred from the city to the countryside and from developed areas to developing ones. New emerging problems coexisted with traditional occupational hazards. Besides, a lack of occupational health services for migrant workers could be a major problem for a long time. Conclusions It is necessary to improve the fields related to occupational health, such as the supervision and administration of small- and medium-scale enterprises, research into key techniques for the prevention and control of occupational hazards, systems for the diagnosis and reporting of occupational diseases, and the training of health professionals. PMID:21432554

  2. Addressing agricultural issues in health care education: an occupational therapy curriculum program description.

    PubMed

    Smallfield, Stacy; Anderson, Angela J

    2008-01-01

    Medical and allied health professionals who work in agricultural states frequently address the needs of clients who live and work in rural and frontier environments. The primary occupations of those living in rural areas include farming, ranching, or other agriculture-related work. Farming is consistently ranked as one of the most high-risk occupations for work-related injuries and accidents; therefore, it is critical that health education programs include content to prepare future medical and health professionals to work with this population. This paper describes the rural issues component of the occupational therapy curriculum at The University of South Dakota. This rural issues module is designed to provide occupational therapists with training about the physical, temporal, and sociocultural aspects of production agriculture and the impact these have on the health and well-being of the agricultural population. It also addresses the occupational therapy implications for farmers and ranchers who have disabilities. Student assessments of the course content have been above average. Training in agricultural health enables our occupational therapy students to be well prepared for work in the rural and frontier areas of South Dakota and other rural locations.

  3. Curriculum Change at Liberal Arts Colleges: The Influence of Financial Conditions.

    ERIC Educational Resources Information Center

    Paulsen, Michael B.

    1990-01-01

    A study tested the hypothesis: The greater the amount of philanthropic income per dollar of tuition, the smaller the fraction of bachelor's degrees in occupational fields. Findings support the contention that a college's tuition dependence is associated with its tendency to adjust its curriculum to match student consumer preferences. (MLW)

  4. Hard Lessons: Why Rational Number Arithmetic Is so Difficult for so Many People

    ERIC Educational Resources Information Center

    Siegler, Robert S.; Lortie-Forgues, Hugues

    2017-01-01

    Fraction and decimal arithmetic pose large difficulties for many children and adults. This is a serious problem, because proficiency with these skills is crucial for learning more advanced mathematics and science and for success in many occupations. This review identifies two main classes of difficulties that underlie poor understanding of…

  5. Disability Pensions due to Skin Diseases: A Cohort Study in Swedish Construction Workers.

    PubMed

    Meding, Birgitta; Wrangsjö, Karin; Burdorf, Alex; Järvholm, Bengt

    2016-02-01

    Disability pensions due to skin diseases in Swedish male construction workers were studied by linking data from pension registers and an occupational health service. Incidence rates of disability pensions for cement workers, painters and plumbers were compared with 2 control groups. A total of 623 disability pensions were granted during 4 decades of follow-up. The main diagnoses were eczema (36%) and psoriasis (49%). Pensions were mostly granted in the age range 55-64 years. Among painters, cement workers and plumbers the incidence rates for disability pensions were 33.3, 24.5 and 20.4 cases/100,000 person-years, respectively, compared with 13.7 and 9.2 cases/100,000 person-years in control groups. Relative risks were highest for eczema, and were notable for psoriasis. Attributable fractions for eczema were 90% in cement workers and painters and 75% in plumbers compared with control groups. Attributable fractions for psoriasis in the occupational groups studied were in the range 54-67%. In conclusion, eczema and psoriasis have a high impact on loss of work ability, as reflected by disability pensions.

  6. The comparison of vernacular residences' thermal comfort in coastal with that in mountainous regions of tropical areas

    NASA Astrophysics Data System (ADS)

    Hermawan, Prianto, Eddy; Setyowati, Erni; Sunaryo

    2017-11-01

    Adaptive thermal comfort is the latest theory used to analyze thermal acceptability of the naturally ventilated buildings for occupants in tropical areas. Vernacular residences are considered capable to meet the thermal comfort for the occupants. The combination between adaptive and passive theory is still rarely conducted. This study aims to compare the adaptive and passive thermal comfort for occupants of vernacular residences in mountainous and coastal regions using AMV (Actual Mean Vote) and PMV (Predicted Mean Vote). This research uses a quantitative method with a statistical analysis on variables of air temperature, globe temperature, velocity, relative humidity, age, weight, and height. AMV data are collected based on questionnaires with ASHRAE (American Society of Heating, Refrigeration, Air conditioning Engineering) standards. The samples consist of 100 vernacular residences of both coastal and mountainous regions. The results show that there are AMV and PMV differences in each region. The AMV values in those vernacular residences in mountainous and coastal regions are respectively -0.4982 and 0.1673. It indicates that the occupants of vernacular residences in coastal regions accept the thermal conditions better. Thus, it can be concluded that vernacular residences in coastal areas comfort the occupants more.

  7. Post occupancy evaluation of energy-efficient behavior in informal housing of high density area

    NASA Astrophysics Data System (ADS)

    Aulia, D. N.; Marpaung, B. O. Y.

    2018-02-01

    The concept of energy-efficient building emphasizes the critical of efficiency in the use of water, electrical energy, and building materials, beginning with design, construction, to the maintenance of the building in the future. This study was conducted to observe the behavior of Energy Saving of the residents in performing everyday activities in the building. The observed variables are the consumption of natural resources (energy, material, water, and land) and the emissions of air, water, and land related to the environment and health. This research is a descriptive qualitative research with the method of data collection is the distribution of questionnaires and observation. The method of analyzing data is posted occupancy evaluation undertaken to obtain patterns of community-based behavior in urban areas. The informal high-density housing area is a typology of population settlements that found in many big cities in Indonesia. This community represents various community groups regarding occupation, education, income, and race. The results of the study concluded that there are five components of energy-saving behavioral formers in housing namely: residential building components, environmental components in occupancy, external occupancy components, components of social activities and elements of business

  8. Task Analysis for Health Occupations. Cluster: Nursing. Occupation: Geriatric Aide. Education for Employment Task Lists.

    ERIC Educational Resources Information Center

    Lake County Area Vocational Center, Grayslake, IL.

    This task analysis for nursing education provides performance standards, steps to be followed, knowledge required, attitudes to be developed, safety procedures, and equipment and supplies needed for 13 tasks performed by geriatric aides in the duty area of performing diagnostic measures and for 30 tasks in the duty area of providing therapeutic…

  9. Occupational Choices of Elementary School Children: Traditional or Non-Traditional?

    ERIC Educational Resources Information Center

    Awender, M. A.; Wearne, T. David

    This study examined the occupational perspectives and preferences of 178 students (ages 9-14 ) from three urban schools; one in a high socioeconomic area; the second in a lower socioeconomic stratum with parents in white and blue collar jobs; and the third in a low-income industrial area where most parents lived in subsidized low-income housing…

  10. Jobs: Employment Opportunities in the Washington Metropolitan Area for Persons with Limited Employment Qualifications.

    ERIC Educational Resources Information Center

    Bendick, Marc, Jr.; Egan, Mary Lou

    Employment data for the Washington, D.C., metropolitan area were analyzed to determine jobs available to people who had not graduated from high school. Three hundred nine occupations offered at least some openings. These occupations encompassed 584,000 jobs and offered 14,000 openings in an average week. These numbers overestimated jobs available…

  11. Short-term occupancy and abundance dynamics of the Oregon spotted frog (Rana pretiosa) across its core range

    USGS Publications Warehouse

    Adams, Michael J.; Pearl, Christopher A.; Mccreary, Brome; Galvan, Stephanie

    2014-01-01

    The Oregon spotted frog (Rana pretiosa) occupies only a fraction of its original range and is listed as Threatened under the Endangered Species Act. We surveyed 93 sites in a rotating frame design (2010–13) in the Klamath and Deschutes Basins, Oregon, which encompass most of the species’ core extant range. Oregon spotted frogs are declining in abundance and probability of site occupancy. We did not find an association between the probability that Oregon spotted frogs disappear from a site (local extinction) and any of the variables hypothesized to affect Oregon spotted frog occupancy. This 4-year study provides baseline data, but the 4-year period was too short to draw firm conclusions. Further study is essential to understand how habitat changes and management practices relate to the status and trends of this species.

  12. Manganese Fractionation Using a Sequential Extraction Method to Evaluate Welders' Shielded Metal Arc Welding Exposures During Construction Projects in Oil Refineries.

    PubMed

    Hanley, Kevin W; Andrews, Ronnee; Bertke, Steven; Ashley, Kevin

    2015-01-01

    The National Institute for Occupational Safety and Health has conducted an occupational exposure assessment study of manganese (Mn) in welding fume of construction workers rebuilding tanks, piping, and process equipment at two oil refineries. The objective of this study was to evaluate exposures to different Mn fractions using a sequential extraction procedure. Seventy-two worker-days were monitored for either total or respirable Mn during stick welding and associated activities both within and outside of confined spaces. The samples were analyzed using an experimental method to separate different Mn fractions by valence states based on selective chemical solubility. The full-shift total particulate Mn time-weighted average (TWA) breathing zone concentrations ranged from 0.013-29 for soluble Mn in a mild ammonium acetate solution; from 0.26-250 for Mn(0,2+) in acetic acid; from non-detectable (ND) - 350 for Mn(3+,4+) in hydroxylamine-hydrochloride; and from ND - 39 micrograms per cubic meter (μg/m(3)) for insoluble Mn fractions in hydrochloric and nitric acid. The summation of all Mn fractions in total particulate TWA ranged from 0.52-470 μg/m(3). The range of respirable particulate Mn TWA concentrations were from 0.20-28 for soluble Mn; from 1.4-270 for Mn(0,2+); from 0.49-150 for Mn(3+,4+); from ND - 100 for insoluble Mn; and from 2.0-490 μg/m(3) for Mn (sum of fractions). For all jobs combined, total particulate TWA GM concentrations of the Mn(sum) were 99 (GSD = 3.35) and 8.7 (GSD = 3.54) μg/m(3) for workers inside and outside of confined spaces; respirable Mn also showed much higher levels for welders within confined spaces. Regardless of particle size and confined space work status, Mn(0,2+) fraction was the most abundant followed by Mn(3+,4+) fraction, typically >50% and ∼30-40% of Mn(sum), respectively. Eighteen welders' exposures exceeded the ACGIH Threshold Limit Values for total Mn (100 μg/m(3)) and 25 exceeded the recently adopted respirable Mn TLV (20 μg/m(3)). This study shows that a welding fume exposure control and management program is warranted, especially for welding jobs in confined spaces.

  13. Manganese fractionation using a sequential extraction method to evaluate welders’ shielded metal arc welding exposures during construction projects in oil refineries

    PubMed Central

    Hanley, Kevin W.; Andrews, Ronnee; Bertke, Steven; Ashley, Kevin

    2015-01-01

    The National Institute for Occupational Safety and Health (NIOSH) has conducted an occupational exposure assessment study of manganese (Mn) in welding fume of construction workers rebuilding tanks, piping, and process equipment at two oil refineries. The objective of this study was to evaluate exposures to different Mn fractions using a sequential extraction procedure. Seventy-two worker-days were monitored for either total or respirable Mn during stick welding and associated activities both within and outside of confined spaces. The samples were analyzed using an experimental method to separate different Mn fractions by valence states based on selective chemical solubility. The full-shift total particulate Mn time-weighted average (TWA) breathing zone concentrations ranged from 0.013 – 29 for soluble Mn in a mild ammonium acetate solution; from 0.26 – 250 for Mn0,2+ in acetic acid; from non-detectable (ND) – 350 for Mn3+,4+ in hydroxylamine-hydrochloride; and from ND – 39 micrograms per cubic meter (μg/m3) for insoluble Mn fractions in hydrochloric and nitric acid. The summation of all Mn fractions in total particulate TWA ranged from 0.52 to 470 μg/m3. The range of respirable particulate Mn TWA concentrations were from 0.20 – 28 for soluble Mn; from 1.4 – 270 for Mn0,2+; from 0.49 – 150 for Mn3+,4+; from ND – 100 for insoluble Mn; and from 2.0 – 490 μg/m3 for Mn (sum of fractions). For all jobs combined, total particulate TWA GM concentrations of the Mn(sum) were 99 (GSD=3.35) and 8.7 (GSD=3.54) μg/m3 for workers inside and outside of confined spaces; respirable Mn also showed much higher levels for welders within confined spaces. Regardless of particle size and confined space work status, Mn0,2+ fraction was the most abundant followed by Mn3+,4+ fraction, typically >50% and ~30-40% of Mn(sum), respectively. Eighteen welders’ exposures exceeded the ACGIH Threshold Limit Values for total Mn (100 μg/m3) and 25 exceeded the recently adopted respirable Mn TLV (20 μg/m3). This study shows that a welding fume exposure control and management program is warranted, especially for welding jobs in confined spaces. PMID:26011602

  14. Predictive habitat models derived from nest-box occupancy for the endangered Carolina northern flying squirrel in the southern Appalachians

    USGS Publications Warehouse

    Ford, W. Mark; Evans, A.M.; Odom, Richard H.; Rodrigue, Jane L.; Kelly, C.A.; Abaid, Nicole; Diggins, Corinne A.; Newcomb, Doug

    2016-01-01

    In the southern Appalachians, artificial nest-boxes are used to survey for the endangered Carolina northern flying squirrel (CNFS; Glaucomys sabrinus coloratus), a disjunct subspecies associated with high elevation (>1385 m) forests. Using environmental parameters diagnostic of squirrel habitat, we created 35 a priori occupancy models in the program PRESENCE for boxes surveyed in western North Carolina, 1996-2011. Our best approximating model showed CNFS denning associated with sheltered landforms and montane conifers, primarily red spruce Picea rubens. As sheltering decreased, decreasing distance to conifers was important. Area with a high probability (>0.5) of occupancy was distributed over 18662 ha of habitat, mostly across 10 mountain ranges. Because nest-box surveys underrepresented areas >1750 m and CNFS forage in conifers, we combined areas of high occupancy with conifer GIS coverages to create an additional distribution model of likely habitat. Regionally, above 1385 m, we determined that 31795 ha could be occupied by CNFS. Known occupied patches ranged from

  15. Experimental study on occupant evacuation in narrow seat aisle

    NASA Astrophysics Data System (ADS)

    Huang, Shenshi; Lu, Shouxiang; Lo, Siuming; Li, Changhai; Guo, Yafei

    2018-07-01

    Narrow seat aisle is an important area in the train car interior due to the large passenger population, however evacuation therein has not gained enough concerns. In this experimental study, the occupant evacuation of the narrow seat aisle area is investigated, with the aisle width of 0.4-0.6 m and the evacuation direction of forward and backward. The evacuation behaviors are analyzed based on the video record, and the discussion is carried out in the aspect of evacuation time, crowdedness, evacuation order, and aisle conflicts. The result shows that with the increasing aisle width, total evacuation time and the average specific evacuation rate decrease. The aisle is crowded for some time, with a large linear occupant densities. The evacuation order of each occupant is mainly related to the seat position. Moreover, it is found that the aisle conflicts can be well described by Burstedde's model. This study gives a useful benchmark for evacuation simulation of narrow seat aisle, and provides reference to safety design of seat area in train cars.

  16. Meeting the challenge of assessing clinical competence of occupational therapists within a program management environment.

    PubMed

    Salvatori, Penny; Simonavicius, Nijole; Moore, Joan; Rimmer, Georgina; Patterson, Michele

    2008-02-01

    Program management models have raised concerns among occupational therapists about professional standards related to clinical competence, performance review procedures, and quality improvement initiatives. This paper describes how a chart-stimulated recall (CSR) peer-review process and interview tool was revised, implemented, and evaluated as a pilot project to assess the clinical competence of occupational therapy staff at a large urban health centre in southern Ontario. Fourteen pairs (n=28) of occupational therapists representing various practice areas participated in this project. Half served as peer assessors and half as interviewees. Peer assessors conducted an independent chart review followed by a one-hour personal interview with a peer partner to discuss clinical management issues related to the client cases. Each interviewer rated his or her partner's clinical competence in eight areas of performance using a 7-point Likert scale. Results indicated that the CSR tool could discriminate among occupational therapists in terms of overall levels of clinical competence and also identify specific areas of concern that could be targeted for professional development. Feedback from participants was positive. The CSR tool was found to be useful for assessing clinical competence of occupational therapists in this large health centre as a quality improvement initiative within that discipline group. Further research is needed to establish the reliability and validity of the CSR tool.

  17. Using occupancy models of forest breeding birds to prioritize conservation planning

    USGS Publications Warehouse

    De Wan, A. A.; Sullivan, P.J.; Lembo, A.J.; Smith, C.R.; Maerz, J.C.; Lassoie, J.P.; Richmond, M.E.

    2009-01-01

    As urban development continues to encroach on the natural and rural landscape, land-use planners struggle to identify high priority conservation areas for protection. Although knowing where urban-sensitive species may be occurring on the landscape would facilitate conservation planning, research efforts are often not sufficiently designed to make quality predictions at unknown locations. Recent advances in occupancy modeling allow for more precise estimates of occupancy by accounting for differences in detectability. We applied these techniques to produce robust estimates of habitat occupancy for a subset of forest breeding birds, a group that has been shown to be sensitive to urbanization, in a rapidly urbanizing yet biological diverse region of New York State. We found that detection probability ranged widely across species, from 0.05 to 0.8. Our models suggest that detection probability declined with increasing forest fragmentation. We also found that the probability of occupancy of forest breeding birds is negatively influenced by increasing perimeter-area ratio of forest fragments and urbanization in the surrounding habitat matrix. We capitalized on our random sampling design to produce spatially explicit models that predict high priority conservation areas across the entire region, where interior-species were most likely to occur. Finally, we use our predictive maps to demonstrate how a strict sampling design coupled with occupancy modeling can be a valuable tool for prioritizing biodiversity conservation in land-use planning. ?? 2009 Elsevier Ltd.

  18. Formation and emissions of carbonyls during and following gas-phase ozonation of indoor materials

    NASA Astrophysics Data System (ADS)

    Poppendieck, D. G.; Hubbard, H. F.; Weschler, C. J.; Corsi, R. L.

    Ozone concentrations that are several orders of magnitude greater than typical urban ambient concentrations are necessary for gas-phase ozonation of buildings, either for deodorization or for disinfection of biological agents. However, there is currently no published literature on the interaction of building materials and ozone under such extreme conditions. It would be useful to understand, for example in the case of building re-occupation planning, what types and amounts of reaction products may form and persist in a building after ozonation. In this study, 24 materials were exposed to ozone at concentrations of 1000 ppm in the inlet stream of experimental chambers. Fifteen target carbonyls were selected and measured as building ozonation by-products (BOBPs). During the 36 h that include the 16 h ozonation and 20 h persistence phase, the total BOBP mass released from flooring and wall coverings ranged from 1 to 20 mg m -2, with most of the carbonyls being of lower molecular weight (C 1-C 4). In contrast, total BOBP mass released from wood-based products ranged from 20 to 100 mg m -2, with a greater fraction of the BOBPs being heavier carbonyls (C 5-C 9). The total BOBP mass released during an ozonation event is a function of both the total surface area of the material and the BOBP emission rate per unit area of material. Ceiling tile, carpet, office partition, and gypsum wallboard with flat latex paint often have large surface areas in commercial buildings and these same materials exhibited relatively high BOBP releases. The greatest overall BOBP mass releases were observed for three materials that building occupants might have significant contact with: paper, office partition, and medium density fiberboard, e.g., often used in office furniture. These materials also exhibited extended BOBP persistence following ozonation; some BOBPs (e.g., nonanal) persist for months or more at emission rates large enough to result in indoor concentrations that exceed their odor threshold.

  19. Technologists and Technicians in the Life Sciences

    ERIC Educational Resources Information Center

    Wheeler, Melissa

    1978-01-01

    A variety of technical occupations that involve biological or life science education are discussed. These technical occupations are divided into agricultural, biological, marine science, and medical areas. (MDR)

  20. [Analysis on occupational exposure to dust and harmful gas and corresponding protection in adults aged 40 years and older in China, 2014].

    PubMed

    Wang, B H; Cong, S; Bao, H L; Feng, Y J; Fan, J; Wang, N; Fang, L W; Wang, L H

    2018-05-10

    Objective: To understand the current status of dust and/or harmful gas exposure in adults aged ≥40 years and corresponding protection in China, and provide evidence for strengthening the occupational protection against dust and harmful gas exposure. Methods: The data were obtained from 2014-2015 COPD surveillance in China. A total of 75 107 adults aged ≥40 years selected through multi-stage stratified cluster sampling from 125 surveillance points in 31 provinces (autonomous regions and municipalities) were surveyed in face to face interviews. Occupational exposure was defined as occupational exposure to dust and/or harmful gas for more than 1 year. The weighted percentages of exposure were estimated by using complex sampling design. Results: Among eligible 71 061 participants, the exposure rate of dust and/or harmful gas was 46.3 % . The exposure rate in rural area (51.7 % ) was significantly higher than that in urban area (40.3 % ), and the exposure rate in the western area was higher than those in the eastern and central areas ( P <0.001). Among the groups with different education level, the exposure rate in those with education level of primary school and below was highest (49.7 % , P <0.001). The exposure protection rate was 26.7 % , and the exposure protection rate was highest in the eastern area (29.9 % ), followed by that in the central area (27.0 % ) and that in the western area (22.9 % ) The exposure protection rate in urban area was significantly higher than that in rural area, and the exposure protection rate was lowest in those with education level of primary school and below. The regular exposure protection was taken by only 50.7 % of the adults surveyed. Conclusion: The exposure rate of dust and/or harmful gas is high in China, while the exposure protection rate is very low. Health education, occupational protection and supervision should be strengthened among those with low education level, and those living in rural area and in the western area.

  1. Female and Male Enrollment and Staffing in Secondary and Postsecondary Occupational Education in Nevada between 1984-1991.

    ERIC Educational Resources Information Center

    Quon, Denise K.; And Others

    A study examined occupational education student enrollments and instructional staffing at the secondary and postsecondary levels in Nevada from 1984 to 1991. It focused on gender compositions within general occupational education areas and specifically concentrated on changes over the period for the traditionally underrepresented gender within…

  2. The Shortage of Skilled and Technical Workers; An Inquiry Into Selected Occupations in Short Supply.

    ERIC Educational Resources Information Center

    Franke, Walter; Sobel, Irvin

    The institutional arrangements through which workers are prepared and employed in selected occupations are examined to determine whether barriers to entry and employment are susceptible to elimination or reduction, and how labor shortages effect employers. It covers six occupations in the St. Louis and Chicago metropolitan areas: licensed…

  3. An Examination of It Occupational Culture: Interpretation, Measurement, and Impact

    ERIC Educational Resources Information Center

    Jacks, Timothy

    2012-01-01

    Past IS studies on culture have primarily focused on two levels of analysis: national culture and organizational culture. The gap in our knowledge of culture is in the area of occupational culture of IT professionals. Occupational culture, unlike organizational culture, is not bounded by a single organization, but rather forms itself around…

  4. Health Related Occupations. Revised Summary Report: Technical Employment in Northeast Florida.

    ERIC Educational Resources Information Center

    Baker, William E.; And Others

    The document is one of five summary reports, all part of a Pre-Technical Curriculum Planning Project for secondary students who aspire to technical employment or post secondary technical education. This report represents the results of an assessment of the northeast Florida area's technical occupations in health related occupations. A three-phase…

  5. Workers in Agribusiness: Profile, Images, Recruitment, Mobility, and Occupations.

    ERIC Educational Resources Information Center

    Taylor, Lee, Ed.; Leagans, J. Paul, Ed.

    Designed and conducted by a team of professors and research associates at New York State College of Agriculture, this study focuses on five primary areas of concern: (1) profile of firms and workers, (2) images of agribusiness work, (3) recruitment, (4) occupational mobility, and (5) agribusiness occupations and projections. Findings reveal that…

  6. An Analysis of the Residential Remodeling Occupation.

    ERIC Educational Resources Information Center

    Scruggs, Kenneth

    The general purpose of the occupational analysis is to provide workable, basic information dealing with the many and varied duties performed in the residential remodeling occupation. The analysis only briefly covers the many areas of residential remodeling. The document opens with a brief introduction followed by a job description. The bulk of the…

  7. Habitat features influencing jaguar Panthera onca (Carnivora: Felidae) occupancy in Tortuguero National Park, Costa Rica.

    PubMed

    Arroyo-Arce, Stephanny; Guilder, James; Salom-Pérez, Roberto

    2014-12-01

    Habitat characteristics and human activities are known to play a major role in the occupancy of jaguars Panthera onca across their range, however the key variables influencing jaguar distribution in Tortuguero National Park, Costa Rica, have yet to be identified. This study evaluated jaguar occupancy in Tortuguero National Park and the surrounding area. Jaguar detection/non-detection data was collected using digital camera traps distributed within the boundaries of the protected area. Local community members were also interviewed to determine jaguar occurrence in the Park's buffer zone. Occupancy models were then applied to identify the habitat characteristics that may better explain jaguar distribution across the study area. From June 2012 to June 2013, a total of 4,339 camera trap days were used to identify 18 individual jaguars inside the protected area; 17 of these jaguars were exclusively detected within the coastal habitat, whilst the remaining individual was detected solely within the interior of the Park. Interviewees reported 61 occasions of jaguar presence inside the buffer zone, between 1995 and 2013, with 80% of these described by the communities of Lomas de Sierpe, Barra de Parismina and La Aurora. These communities also reported the highest levels of livestock predation by jaguars (85% of attacks). In the study area, jaguar occurrence was positively correlated with the seasonal presence of nesting green turtles Chelonia mydas, and negatively correlated with distance to the Park boundary. Our findings suggested that the current occupancy of the jaguar in the study area may be a response to: 1) the vast availability of prey (marine turtles) on Tortuguero beach, 2) the decline of its primary prey species as a result of illegal hunting inside the Park, and 3) the increase in anthropogenic pressures in the Park boundaries.

  8. The effects of urbanization on population density, occupancy, and detection probability of wild felids.

    PubMed

    Lewis, Jesse S; Logan, Kenneth A; Alldredge, Mat W; Bailey, Larissa L; VandeWoude, Sue; Crooks, Kevin R

    2015-10-01

    Urbanization is a primary driver of landscape conversion, with far-reaching effects on landscape pattern and process, particularly related to the population characteristics of animals. Urbanization can alter animal movement and habitat quality, both of which can influence population abundance and persistence. We evaluated three important population characteristics (population density, site occupancy, and species detection probability) of a medium-sized and a large carnivore across varying levels of urbanization. Specifically, we studied bobcat and puma populations across wildland, exurban development, and wildland-urban interface (WUI) sampling grids to test hypotheses evaluating how urbanization affects wild felid populations and their prey. Exurban development appeared to have a greater impact on felid populations than did habitat adjacent to a major urban area (i.e., WUI); estimates of population density for both bobcats and pumas were lower in areas of exurban development compared to wildland areas, whereas population density was similar between WUI and wildland habitat. Bobcats and pumas were less likely to be detected in habitat as the amount of human disturbance associated with residential development increased at a site, which was potentially related to reduced habitat quality resulting from urbanization. However, occupancy of both felids was similar between grids in both study areas, indicating that this population metric was less sensitive than density. At the scale of the sampling grid, detection probability for bobcats in urbanized habitat was greater than in wildland areas, potentially due to restrictive movement corridors and funneling of animal movements in landscapes influenced by urbanization. Occupancy of important felid prey (cottontail rabbits and mule deer) was similar across levels of urbanization, although elk occupancy was lower in urbanized areas. Our study indicates that the conservation of medium- and large-sized felids associated with urbanization likely will be most successful if large areas of wildland habitat are maintained, even in close proximity to urban areas, and wildland habitat is not converted to low-density residential development.

  9. The Effects of Curtain Airbag on Occupant Kinematics and Injury Index in Rollover Crash

    PubMed Central

    Li, Hongyun; Cui, Dong; Lu, Shuang

    2018-01-01

    Background Occupant injuries in rollover crashes are associated with vehicle structural performance, as well as the restraint system design. For a better understanding of the occupant kinematics and injury index in certain rollover crash, it is essential to carry out dynamic vehicle rollover simulation with dummy included. Objective This study focused on effects of curtain airbag (CAB) parameters on occupant kinematics and injury indexes in a rollover crash. Besides, optimized parameters of the CAB were proposed for the purpose of decreasing the occupant injuries in such rollover scenario. Method and Material The vehicle motion from the physical test was introduced as the input for the numerical simulation, and the 50% Hybrid III dummy model from the MADYMO database was imported into a simulation model. The restraint system, including a validated CAB module, was introduced for occupant kinematics simulation and injury evaluation. TTF setting, maximum inflator pressure, and protection area of the CAB were analysed. Results After introducing the curtain airbag, the maximum head acceleration was reduced from 91.60 g to 49.52 g, and the neck Mx and neck Fz were reduced significantly. Among these CAB parameters, the TTF setting had the largest effect on the head acceleration which could reduce 8.6 g furthermore after optimization. The neck Fz was decreased from 3766.48 N to 2571.77 N after optimization of CAB protection area. Conclusions Avoiding hard contact is critical for the occupant protection in the rollover crashes. The simulation results indicated that occupant kinematics and certain injury indexes were improved with the help of CAB in such rollover scenario. Appropriate TTF setting and inflator selection could benefit occupant kinematics and injury indexes. Besides, it was advised to optimize the curtain airbag thickness around the head contact area to improve head and neck injury indexes. PMID:29765463

  10. Evidence for non-linear metabolism at low benzene exposures? A reanalysis of data.

    PubMed

    McNally, K; Sams, C; Loizou, G D; Jones, K

    2017-12-25

    The presence of a high-affinity metabolic pathway for low level benzene exposures of less than one part per million (ppm) has been proposed although a pathway has not been identified. The variation of metabolite molar fractions with increasing air benzene concentrations was suggested as evidence of significantly more efficient benzene metabolism at concentrations <0.1 ppm The evidence for this pathway is predicated on a rich data set from a study of Chinese shoe workers exposed to a wide range of benzene concentrations (not just "low level"). In this work we undertake a further independent re-analysis of this data with a focus on the evidence for an increase in the rate of metabolism of benzene exposures of less than 1 ppm. The analysis dataset consisted of measurements of benzene and toluene from personal air samplers, and measurements of unmetabolised benzene and toluene and five metabolites (phenol hydroquinone, catechol, trans, trans-muconic acid and s-phenylmercapturic acid) from post-shift urine samples for 213 workers with an occupational exposure to benzene (and toluene) and 139 controls. Measurements from control subjects were used to estimate metabolite concentrations resulting from non-occupational sources, including environmental sources of benzene. Data from occupationally exposed subjects were used to estimate metabolite concentrations as a function of benzene exposure. Correction for background (environmental exposure) sources of metabolites was achieved through a comparison of geometric means in occupationally exposed and control populations. The molar fractions of the five metabolites as a function of benzene exposure were computed. A supra-linear relationship between metabolite concentrations and benzene exposure was observed over the range 0.1-10 ppm benzene, however over the range benzene exposures of between 0.1 and 1 ppm only a modest departure from linearity was observed. The molar fractions estimated in this work were near constant over the range 0.1-10 ppm. No evidence of high affinity metabolism at these low level exposures was observed. Our reanalysis brings in to question the appropriateness of the dataset for commenting on low dose exposures and the use of a purely statistical approach to the analysis. Crown Copyright © 2017. Published by Elsevier B.V. All rights reserved.

  11. Demographic response of northern spotted owls to barred owl removal

    USGS Publications Warehouse

    Diller, V. Lowell; Hamm, Keith A; Early, Desiree A; Lamphear, David W; Dugger, Katie M.; Yackulic, Charles B.; Schwarz, Carl J.; Carlson, Peter C.; McDonald, Trent L.

    2016-01-01

    Federally listed as threatened in 1990 primarily because of habitat loss, the northern spotted owl (Strix occidentalis caurina) has continued to decline despite conservation efforts resulting in forested habitat being reserved throughout its range. Recently, there is growing evidence the congeneric invasive barred owl (Strix varia) may be responsible for the continued decline primarily by excluding spotted owls from their preferred habitat. We used a long-term demographic study for spotted owls in coastal northern California as the basis for a pilot barred owl removal experiment. Our demography study used capture–recapture, reproductive output, and territory occupancy data collected from 1990 to 2013 to evaluate trends in vital rates and populations. We used a classic before-after-control-impact (BACI) experimental design to investigate the demographic response of northern spotted owls to the lethal removal of barred owls. According to the best 2-species dynamic occupancy model, there was no evidence of differences in barred or northern spotted owl occupancy prior to the initiation of the treatment (barred owl removal). After treatment, barred owl occupancy was lower in the treated relative to the untreated areas and spotted owl occupancy was higher relative to the untreated areas. Barred owl removal decreased spotted owl territory extinction rates but did not affect territory colonization rates. As a result, spotted owl occupancy increased in the treated area and continued to decline in the untreated areas. Prior to and after barred owl removal, there was no evidence that average fecundity differed on the 2 study areas. However, the greater number of occupied spotted owl sites on the treated areas resulted in greater productivity in the treated areas based on empirical counts of fledged young. Prior to removal, survival was declining at a rate of approximately 0.2% per year for treated and untreated areas. Following treatment, estimated survival was 0.859 for the treated areas and 0.822 for the untreated areas. Derived estimates of population change on both study areas showed the same general decline before removal with an estimated slope of –0.0036 per year. Following removal, the rate of population change on the treated areas increased to an average of 1.029 but decreased to an average of 0.870 on the untreated areas. The results from this first experiment demonstrated that lethal removal of barred owls allowed the recovery of northern spotted owl populations in the treated portions of our study area. If additional federally funded barred owl removal experiments provide similar results, this could be the foundation for development of a long-term conservation strategy for northern spotted owls.

  12. A Comprehensive Study of Vocational Interests, Occupational Opportunities and Cooperative Education for the Mid-Plains Nebraska Technical Community College Area.

    ERIC Educational Resources Information Center

    Boardman, Gerald R.; Mendenhall, Elton B.

    The main purpose of the study was to develop a cooperative education plan for the Mid-Plains Technical Community College area through assessment of: (1) vocational interests of students in grades 9-12, (2) occupational opportunities of employers, and (3) various existing cooperative education programs. Vocational interest assessment consisted of…

  13. Projected Allied Health and Nursing Training Needs for a Seven-County Area in West Virginia.

    ERIC Educational Resources Information Center

    Bertram, Charles L.; And Others

    This report describes a project that developed and field tested a model for projecting state-wide manpower needs in the allied health and nursing occupations in West Virginia and presents projections made for sixteen allied health and nursing occupations in the Charleston area. The content of the report is presented in three sections. The first…

  14. Training Occupational, Physical, and Recreational Therapists in the Area of Deaf-Blind: Proceedings (Dallas, Texas, July 28-31, 1975).

    ERIC Educational Resources Information Center

    Gray, Jill M.; Dantona, Robert

    The document contains 12 papers from the 1975 National Conference for Training Occupational, Physical, and Recreational Therapists in the Area of Deaf-Blind to assist in improving services to deaf-blind children and youth and thereby reduce the impact of their multiple impairments. Entries include the following titles and authors:…

  15. Renewal of Currently Employed Teachers as Teachers of Applied Biological and Agricultural Occupations. Final Report.

    ERIC Educational Resources Information Center

    Thomas, Hollie B.; And Others

    A workshop of interested science teachers from the metropolitan area of Illinois sought to increase their awareness of the career opportunities for their students in the biological and agricultural occupations that exist locally. The main purpose of the project was to establish programs in the metropolitan areas designed to match the interests of…

  16. Employment Placement Data of 1990-91 Occupational Graduates at Minnesota's Twin City Area Community Colleges. Metro Pilot Study Report #1.

    ERIC Educational Resources Information Center

    Taylor, Kenneth E.; Flermoen, Cynthia

    In 1991, followup studies of the employment and educational status of 1990-1991 occupational program graduates were conducted by the seven community colleges in the Twin Cities metro area of Minnesota: Anoka-Ramsey, Cambridge Center, Inver Hills, Lakewood, Minneapolis, North Hennepin, and Normandale. While the colleges used different questionnaire…

  17. [Concept analysis of a participatory approach to occupational safety and health].

    PubMed

    Yoshikawa, Etsuko

    2013-01-01

    The purpose of this study was to analyze a participatory approach to occupational safety and health, and to examine the possibility of applying the concept to the practice and research of occupational safety and health. According to Rodger's method, descriptive data concerning antecedents, attributes and consequences were qualitatively analyzed. A total of 39 articles were selected for analysis. Attributes with a participatory approach were: "active involvement of both workers and employers", "focusing on action-oriented low-cost and multiple area improvements based on good practices", "the process of emphasis on consensus building", and "utilization of a local network". Antecedents of the participatory approach were classified as: "existing risks at the workplace", "difficulty of occupational safety and health activities", "characteristics of the workplace and workers", and "needs for the workplace". The derived consequences were: "promoting occupational safety and health activities", "emphasis of self-management", "creation of safety and healthy workplace", and "contributing to promotion of quality of life and productivity". A participatory approach in occupational safety and health is defined as, the process of emphasis on consensus building to promote occupational safety and health activities with emphasis on self-management, which focuses on action-oriented low-cost and multiple area improvements based on good practices with active involvement of both workers and employers through utilization of local networks. We recommend that the role of the occupational health professional be clarified and an evaluation framework be established for the participatory approach to promote occupational safety and health activities by involving both workers and employers.

  18. Supermassive Black Holes in Late-type Spiral Galaxies: Constraining High Mass X-ray Binary Contamination

    NASA Astrophysics Data System (ADS)

    Dittenber, Benjamin; Hodges-Kluck, Edmund J.; Gallo, Elena

    2018-06-01

    Supermassive black holes (SMBHs) are known to commonly reside in the centers of large galaxies, but it is unclear whether they reside in smaller galaxies (M_* < M_sun x 10^10). X-rays are the most efficient way to detect low-level accretion, and provide the best measurement of the occupation fraction. X-ray binaries can be nearly as bright as SMBHs that have sub-Eddington accretion rates. High-mass XRBs (HMXBs) are especially problematic because they can get brighter than low-mass XRBs. However, previous estimates of HMXB contamination (based on the optical continuum to get the fraction of HMXBs expected in the nucleus) may be too high. A better approach is to use FUV or H-alpha, which directly trace ongoing star formation. We did this in a sample of 30 late-type galaxies with Chandra data. We calculate the total Expected X-ray Luminosity from XRBs (L_x) for each sample galaxy using existing relationships between X-ray luminosity and SFR. We estimate the fraction of the stellar formation in the nucleus by measuring the fraction of nuclear UV or H-alpha light there (total SFR is from the far infrared). Our Galex data is scaled with a sample of 6 Swift UVOT galaxies to measure with the same aperture size that previous works have used in the B-band. We found that the mean L_x,c for Swift scaled FUV ratios is ~2.025 x 10^36 and the mean L_x,c for H-alpha ratios is 7.693 x 10^35. These luminosities are 1.9 and 5 times smaller than B-band measured luminosities respectively. These results suggest that HMXBs do not contribute as much contamination in these galaxies as previously thought. Therefore, with a lower contamination, estimates of the occupation fraction from late-type galaxies are more reliable.

  19. [Cross-sectional study on the determinants of work stress for nurses and intention of leaving the profession].

    PubMed

    Romano, Marina; Festini, Filippo; Bronner, Leonardo

    2015-01-01

    Occupational stress is one of the main causes of sick leaves among healthcare professionals and it determines high costs to health systems. Monitoring occupational related stress can be an important tool for policy makers. The Italian nursing research gave little attention to nurses' occupational stress. The aims of this study is to estimate the prevalence of occupational stress and evaluate risks factors among Italian nurses in order to evaluate health promotion intervention. Cross-sectional study on a convenience sample of nurses from three Italian public hospitals was carried out. The Nursing Stress Scale was administrated together with socio-demographic data information(age, occupational age, family structure etc). The Nursing Stress Scale includes 34 items with a score from 0 to 3. Seven areas of job related stress are investigate in the scale: conflict with physicians, inadequate training, lack of support, conflict with other nurses, workload, uncertainty about treatments, death and suffering. Scores were calculated for each item and for each area. Associations between stress scores and socio-demographic data were analyzed. 231 nurses participated to the study. The two stress areas with the highest scores were "workload" (1.58) and "death and suffering" (1.39). Among the 13 items that exceed the overall mean stress score (i.e. 1.07), five belong to the "workload" area. "Watching a suffering patient" is the single item with the highest mean score. Demographic data associated to higher stress scores are, female gender (p=0.03) and working with night shifts (p=0.02). Intention to leave the nursing profession is associated to higher stress scores (p=0.002). Age, occupational age, time to commute to work, number of children, having disabled relatives at home, were not correlated to higher stress scores. Our study provides data regarding nurses' occupational stress that was not available before. This data may be useful for policy makers to plan preventive interventions for nurses' job related stress and to reduce nurses' intention to leave.

  20. Occupational health in the People's Republic of China.

    PubMed Central

    Christiani, D C

    1984-01-01

    China's drive to modernize its economy will produce new occupational health problems even as it resolves earlier ones. Well aware of this, Chinese occupational health experts are intensifying efforts to improve workers' health and establish a modern occupational health program. Occupational lung disease, occupational cancer, heavy metal poisoning, industrial chemical poisoning, and physical factor-induced diseases (noise and heat) have all been targeted for expanded research which will serve as a basis for standard setting. Hazard control efforts include engineering controls, particularly in new construction, limited use of personal protective equipment, and expansion of environmental and medical monitoring. Worker education and professional activities have been expanded. International exchanges have been initiated and will prove occupational health a promising area of scientific cooperation. PMID:6228153

  1. Perfluorinated surfactants (PFSs) in size-fractionated street dust in Tokyo.

    PubMed

    Murakami, Michio; Takada, Hideshige

    2008-11-01

    We investigated perfluorinated surfactants (PFSs) in size-fractionated street dust to identify their occurrence, contributions from traffic, and potential routes of entry into waters. Street dust was collected from residential areas and heavily trafficked areas in Tokyo and sorted into fine (<63 microm) and coarse fractions (63-2000 microm). Five PFS species were analyzed by liquid chromatography-tandem mass spectrometry: perfluorooctanesulfonate (PFOS), perfluorooctanoate (PFOA), perfluorononanoate (PFNA), perfluorodecanoate (PFDA), and perfluoroundecanoate (PFUA). In fine fractions, PFS contents were significantly higher in heavily trafficked street dust than in residential street dust, but in coarse fractions, no significant differences were observed. Additionally, in heavily trafficked areas, PFS contents were significantly higher in fine fractions than in coarse fractions, but in residential areas, no significant differences were observed. PFS compositions differed between size fractions, not locations, indicating differences in sources between size fractions. Fine particles from traffic contributed to PFSs in street dust. Street dust possibly acts as the origin of PFSs in street runoff and eventually enters waters. This is the first report of PFSs in street dust.

  2. The use of biomarkers in occupational health research, practice, and policy.

    PubMed

    Schulte, P A; Hauser, J E

    2012-08-13

    Biomarkers are potentially useful tools for occupational health and safety research, practice, and policy. However, the full realization of this potential has not been achieved. In this paper, the progress made in these three usage areas is reviewed to identify what efforts can be taken to realize the full promise of biomarkers. Biomarker uses are described by a diverse taxonomy that builds on the categories of exposure, effect and susceptibility, and the continuum between exposure and disease prognosis. The most significant uses of biomarkers in occupational health have been in biological monitoring of workers. Other important uses have been in enhancing research and assessing mechanisms of action of occupational toxicants at low exposures. Seven critical areas will influence the extent to which the potential of biomarkers in occupational health and safety is realized. These include: (1) adequate investment in validation; (2) obtaining international agreement on exposure guidelines; (3) exploring the utility of biomarkers in regulation; (4) applying biomarkers to critical occupational safety and health questions; (5) developing the exposome; (6) utilizing biomarkers to address emerging occupational health issues; and (7) continuing to address the ethical and social justice issues related to biomarkers. Overall, if biomarkers are to make a major contribution to occupational health and safety then a more holistic approach to bringing them from the laboratory to practice will be needed. Published by Elsevier Ireland Ltd.

  3. Assessment of the occupational and environmental risks of hexabromocyclododecane (HBCD) in China.

    PubMed

    Yi, Shan; Liu, Jian-Guo; Jin, Jun; Zhu, Jing

    2016-05-01

    In 2013, hexabromocyclododecane (HBCD) was listed in the Stockholm Convention on Persistent Organic Pollutants obligated to be phased out worldwide. China is a major producer and user of HBCD. Based on Chinese HBCD production and processing conditions, we classified the existing 599 HBCD production and processing plants into six occupational exposure scenarios. We also used occupational environmental monitoring and occupational health risk assessment models to estimate exposure levels. Occupational internal exposure levels for HBCD in China were estimated to range from 0.61 to 840 μg kg(-1) d(-1), which suggests that approximately 453-840 workers, or 72% of all workers in this industry, may have occupational exposure risk. As such, the occupational risks of HBCD should not be ignored. In our study area, HPLC-MS/MS revealed HBCD concentrations ranging from 0.11 to 560 ng g dry weight (dw)(-1), 20.4-24.2 ng g dw(-1), and 166-1964 ng g lipid weight (lw)(-1) in soil, sediment, and biological samples, respectively, consistent with previous monitoring results. These data suggest potential risk to marine environments due to sustained and large-scale HBCD production and processing. Thus, timely measures to control HBCD-related risk are necessary and may bring significant occupational health and environmental benefits in areas where HBCD is prevalent. Copyright © 2016 Elsevier Ltd. All rights reserved.

  4. Barriers to the use of Information and Communication Technology by occupational therapists working in a rural area of New South Wales, Australia.

    PubMed

    Chedid, Rebecca Jean; Dew, Angela; Veitch, Craig

    2013-06-01

    This qualitative study formed part of a large-scale, multi-phase study into the delivery of therapy services to people with a disability, living in one rural area of New South Wales, Australia. The study's purpose was to identify the impact of Information and Communication Technology on the workforce practices of occupational therapists' working in a rural area of New South Wales. Individual semi-structured telephone interviews were conducted with 13 occupational therapists working in disability, health and private practice in a rural area of New South Wales. Participants were asked about access to, skills and limitations of using Information and Communication Technology. A modified grounded theory approach, based on thematic analysis and constant comparison, was used to analyse the interview transcripts. This study found widespread use of technology by rurally based occupational therapists working in the disability sector in New South Wales. However, Information and Communication Technology was primarily used for client contact, professional development and professional networking rather than therapy provision. The study identified individual, workplace and community barriers to greater uptake of Information and Communication Technology by this group. The individual barriers included: age cohort, knowledge and personal preferences. The workplace barriers included: support and training and availability of resources. The community barriers included: infrastructure and perceptions of clients' acceptance. The potential exists for Information and Communication Technology to supplement face-to-face therapy provision, enhance access to professional development and reduce professional isolation thereby addressing the rural challenges of large distances, travel times and geographic isolation. To overcome these challenges, individual, workplace and community Information and Communication Technology barriers should be addressed concurrently. © 2012 The Authors Australian Occupational Therapy Journal © 2012 Occupational Therapy Australia.

  5. [Endemic zoonosis in Mediterranean area].

    PubMed

    Fenga, Concettina; Pugliese, Michela

    2013-01-01

    The Mediterranean is historically considered an area of high concentration of zoonoses. Mediterranean countries socio-economic features have favoured, over time, the onset of different types of zoonosis. Many of these may affect many occupational categories, first of all farmers, people working in abattoirs and processing products of animal origin. New farming activities and technologies have generated new occupational and zoonotic risks. These changes have influenced zoonosis epidemiology and have led to a gradual decrease in the number of diseases and to a reduction of some biological risks. However, brucellosis, Q fever, bovine tuberculosis cystic echinococcosis remain a strong example of zoonosis and a real risk, in the Mediterranean area especially. Therefore, an interdisciplinary collaboration between Veterinary Service, Public Health and Occupational medicine is necessary in order to plan territorial prevention.

  6. Career Exploration in Agribusiness, Renewable Natural Resources, and Environmental Protection: A Curriculum Guide for Grades 7-9.

    ERIC Educational Resources Information Center

    Lawson, Dorothy; And Others

    This guide contains eight learning modules which are designed as samples which fuse the career development concepts, subject matter, and occupational information into learning activities using occupations as the nucleus. There is one module for each of the eight occupational areas: agricultural equipment and mechanics, agricultural products (food…

  7. Site occupancy of brown-headed nuthatches varies with habitat restoration and range-limit context

    Treesearch

    Richard A. Stanton; Frank R. Thompson; Dylan C. Kesler

    2015-01-01

    Knowledge about species’ responses to habitat restoration can inform subsequent management and reintroduction planning. We used repeated call-response surveys to study brown-headed nuthatch (Sitta pusilla) patch occupancy at the current limits of its apparently expanding range in an area with active habitat restoration. We fit a probit occupancy...

  8. Guidebook for Home Economics Cooperative Education Occupational Areas.

    ERIC Educational Resources Information Center

    Texas Education Agency, Austin. Dept. of Occupational Education and Technology.

    The curriculum guide opens with brief introductions on the use of the guide and on the nature of the 17 occupations considered and possible places of employment in each job category. The remainder of the guide consists of unit plans for the occupations: art and craft aide, bridal consultant, child care aide, clothing assistant, companion to…

  9. A Comparative Analysis of Tasks Essential to Successful Performance in Three Veterinarian Lay Occupations. Summary Research 5.

    ERIC Educational Resources Information Center

    McCracken, J. David; Cooke, Frederick C.

    The occupational survey's purpose was to identify the skills which are performed and essential for success in three veterinary lay occupations: animal health assistant, animal hospital receptionist, and animal health technician. Survey objectives were accomplished by constructing an initial task inventory of 21 duty areas, validating the initial…

  10. Occupational Risks of Health Professionals in Turkey as an Emerging Economy.

    PubMed

    Ulutasdemir, Nilgun; Cirpan, Metin; Copur, Ebru Ozturk; Tanir, Ferdi

    2015-01-01

    Health services are one of the work areas that contain important risks in terms of the occupational health and safety of the laborer. Professionals in various areas of health services encounter biological, chemical, physical, ergonomic, and psychosocial risks, particularly in hospitals. This study has been performed to evaluate the impacts of the occupational risks on health of health professionals in Turkey. In Turkey, as an emerging economy, the history of studies on health professionals is not longstanding. There have been various regulations intended for the occupational health and safety of health professionals in line with the Regulation of the Provision on Patient and Staff Safety prepared in 2012. However, applications can differ from region to region, institution to institution, and person to person. We believe that this review will lead health professionals to be aware of occupational risks and contribute to planning health services for health professionals. Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.

  11. Thermal evaluation for exposed stone house with quantitative and qualitative approach in mountainous area, Wonosobo, Indonesia

    NASA Astrophysics Data System (ADS)

    Hermawan, Hermawan; Prianto, Eddy

    2017-12-01

    A building can be considered as having a good thermal performance if it can make the occupant comfortable. Thermal comfort can be seen from the occupant's respond toward the architectural elements and the environment, such as lighting, the room crowding, air temperature, humidity, oxygen level, and occupant's behaviours. The objective of this research is to analyse the thermal performance of four different orientation houses in mountainous area. The research was conducted on the four expose stone houses with four different orientations in the slope of Sindoro Mountain which has relative cool temperature, about 26°C. The measurement of the elements above was done quantitatively and qualitatively for 24 hours. The results are as follows. First, the most comfortable house is west-orientation house. Second, based on the quantitative and qualitative observation, there is no significant difference (±5 %). Third, the occupant's behaviours (caring and genen) also become factors influencing occupant's comfort.

  12. Basic occupational health services (BOHS) in community primary care: the MSF (Dhaka) model.

    PubMed

    Muralidhar, Venkiteswaran; Ahasan, Md Faizul; Khan, Ahad Mahmud; Alam, Mohammad Shariful

    2017-03-20

    The Médecins Sans Frontiérs (MSF) established basic occupational health services to diagnose and treat work-related diseases among tannery, metal, plastics and garment workers and families in one of the more polluted areas of the world populated by 600 000 people. In spite of project limitations, an analysis of the 6-month data showed that of the original cohort of 5000, 3200 (64%) came for at least 1 consultation. Among them, 468 (14.6%) were diagnosed with suspected work-related diseases as per defined protocols. Follow-up consultation was performed for 1447 cases of occupational diseases and work-related injuries. The MSF experience begs the need for replication of such services in densely populated urban areas in developing nations like Bangladesh and India, where no specialty occupational health clinics exist in primary care but are desperately needed and where occupational health clinics on factory premises are exclusive to industry workers and are not accessible to communities. 2017 BMJ Publishing Group Ltd.

  13. Occupational risk factors for female breast cancer: a review.

    PubMed Central

    Goldberg, M S; Labrèche, F

    1996-01-01

    OBJECTIVES: Although progress has been made in identifying personal risk factors and in improving treatment for female breast cancer, incidence rates continue to increase. With women now occupying a sizable fraction of the workforce, it is worth inquiring whether there are occupational risk factors for breast cancer. This is a review of occupational studies on female breast cancer. METHODS: Suitable reports and published articles with associations of female breast cancer and occupation were identified from technical reports, by searching the MEDLINE bibliographic data base, and by reviewing each paper on cancer that was published in 20 major journals during the period from about 1971-94. RESULTS: A total of 115 studies were identified; 19 studies relied exclusively on data collected for administrative purposes, and there were four incident case-control studies and 92 cohort studies. Although data for individual industries, occupations, and exposures were sparse, there was limited evidence of an association with employment in the pharmaceutical industry and among cosmetologists and beauticians. Associations were also found for chemists and occupations with possible exposure to extremely low frequency electromagnetic fields, but potential methodological weaknesses preclude drawing any definite conclusions. There was little support for increased risks among textiles workers, dry cleaning workers, and nuclear industry workers. CONCLUSIONS: Few high quality occupational studies directed specifically toward women have been carried out to allow the unambiguous identification of occupational risk factors for breast cancer. It is suggested that investigations that account for non-occupational risk factors and that assess exposure in a more detailed way be carried out. One strategy already suggested is to conduct population based, case-control studies in which subjects are interviewed about their occupational histories and exposure to chemical and physical agents which are then attributed from the job descriptions by a team of experts. These studies can then be supplemented when necessary with cohort studies of specific populations. PMID:8704854

  14. Clarifying the Construct of Occupational Engagement for Occupational Therapy Practice.

    PubMed

    Kennedy, Jennifer; Davis, Jane A

    2017-04-01

    Occupational engagement (OE) has been presented as a core construct in occupational therapy; however, its broad conceptualization and confounding definitions are problematic. Clarifying the construct of OE would help occupational therapists to explicate the nature of their practice. The purpose of this study was to explore occupational therapists' perspectives of the construct of OE. Qualitative descriptive methodology was used to collect data using semistructured interviews with nine practicing occupational therapists in the Greater Toronto Area. Qualitative content analysis, using an inductive approach, was employed to uncover emerging categories. Participants spoke about transitioning from therapeutic engagement to OE with a client by following a client's path of choice. The essential elements and influencers of OE were highlighted, and the relationship between OE and occupational performance was discussed. The findings provide an initial understanding of essential elements necessary to enable clients to initiate engagement in therapy and then, subsequently, in occupations of their choice.

  15. Urban economies and occupation space: can they get "there" from "here"?

    PubMed

    Muneepeerakul, Rachata; Lobo, José; Shutters, Shade T; Goméz-Liévano, Andrés; Qubbaj, Murad R

    2013-01-01

    Much of the socioeconomic life in the United States occurs in its urban areas. While an urban economy is defined to a large extent by its network of occupational specializations, an examination of this important network is absent from the considerable body of work on the determinants of urban economic performance. Here we develop a structure-based analysis addressing how the network of interdependencies among occupational specializations affects the ease with which urban economies can transform themselves. While most occupational specializations exhibit positive relationships between one another, many exhibit negative ones, and the balance between the two partially explains the productivity of an urban economy. The current set of occupational specializations of an urban economy and its location in the occupation space constrain its future development paths. Important tradeoffs exist between different alternatives for altering an occupational specialization pattern, both at a single occupation and an entire occupational portfolio levels.

  16. Urban Economies and Occupation Space: Can They Get “There” from “Here”?

    PubMed Central

    Muneepeerakul, Rachata; Lobo, José; Shutters, Shade T.; Goméz-Liévano, Andrés; Qubbaj, Murad R.

    2013-01-01

    Much of the socioeconomic life in the United States occurs in its urban areas. While an urban economy is defined to a large extent by its network of occupational specializations, an examination of this important network is absent from the considerable body of work on the determinants of urban economic performance. Here we develop a structure-based analysis addressing how the network of interdependencies among occupational specializations affects the ease with which urban economies can transform themselves. While most occupational specializations exhibit positive relationships between one another, many exhibit negative ones, and the balance between the two partially explains the productivity of an urban economy. The current set of occupational specializations of an urban economy and its location in the occupation space constrain its future development paths. Important tradeoffs exist between different alternatives for altering an occupational specialization pattern, both at a single occupation and an entire occupational portfolio levels. PMID:24040021

  17. The minimum area requirements (MAR) for giant panda: an empirical study

    PubMed Central

    Qing, Jing; Yang, Zhisong; He, Ke; Zhang, Zejun; Gu, Xiaodong; Yang, Xuyu; Zhang, Wen; Yang, Biao; Qi, Dunwu; Dai, Qiang

    2016-01-01

    Habitat fragmentation can reduce population viability, especially for area-sensitive species. The Minimum Area Requirements (MAR) of a population is the area required for the population’s long-term persistence. In this study, the response of occupancy probability of giant pandas against habitat patch size was studied in five of the six mountain ranges inhabited by giant panda, which cover over 78% of the global distribution of giant panda habitat. The probability of giant panda occurrence was positively associated with habitat patch area, and the observed increase in occupancy probability with patch size was higher than that due to passive sampling alone. These results suggest that the giant panda is an area-sensitive species. The MAR for giant panda was estimated to be 114.7 km2 based on analysis of its occupancy probability. Giant panda habitats appear more fragmented in the three southern mountain ranges, while they are large and more continuous in the other two. Establishing corridors among habitat patches can mitigate habitat fragmentation, but expanding habitat patch sizes is necessary in mountain ranges where fragmentation is most intensive. PMID:27929520

  18. The minimum area requirements (MAR) for giant panda: an empirical study.

    PubMed

    Qing, Jing; Yang, Zhisong; He, Ke; Zhang, Zejun; Gu, Xiaodong; Yang, Xuyu; Zhang, Wen; Yang, Biao; Qi, Dunwu; Dai, Qiang

    2016-12-08

    Habitat fragmentation can reduce population viability, especially for area-sensitive species. The Minimum Area Requirements (MAR) of a population is the area required for the population's long-term persistence. In this study, the response of occupancy probability of giant pandas against habitat patch size was studied in five of the six mountain ranges inhabited by giant panda, which cover over 78% of the global distribution of giant panda habitat. The probability of giant panda occurrence was positively associated with habitat patch area, and the observed increase in occupancy probability with patch size was higher than that due to passive sampling alone. These results suggest that the giant panda is an area-sensitive species. The MAR for giant panda was estimated to be 114.7 km 2 based on analysis of its occupancy probability. Giant panda habitats appear more fragmented in the three southern mountain ranges, while they are large and more continuous in the other two. Establishing corridors among habitat patches can mitigate habitat fragmentation, but expanding habitat patch sizes is necessary in mountain ranges where fragmentation is most intensive.

  19. Neighborhood Social Inequalities in Road Traffic Injuries: The Influence of Traffic Volume and Road Design

    PubMed Central

    Gauvin, Lise; Plante, Céline; Fournier, Michel; Morency, Catherine

    2012-01-01

    Objectives. We examined the extent to which differential traffic volume and road geometry can explain social inequalities in pedestrian, cyclist, and motor vehicle occupant injuries across wealthy and poor urban areas. Methods. We performed a multilevel observational study of all road users injured over 5 years (n = 19 568) at intersections (n = 17 498) in a large urban area (Island of Montreal, Canada). We considered intersection-level (traffic estimates, major roads, number of legs) and area-level (population density, commuting travel modes, household income) characteristics in multilevel Poisson regressions that nested intersections in 506 census tracts. Results. There were significantly more injured pedestrians, cyclists, and motor vehicle occupants at intersections in the poorest than in the richest areas. Controlling for traffic volume, intersection geometry, and pedestrian and cyclist volumes greatly attenuated the event rate ratios between intersections in the poorest and richest areas for injured pedestrians (−70%), cyclists (−44%), and motor vehicle occupants (−44%). Conclusions. Roadway environment can explain a substantial portion of the excess rate of road traffic injuries in the poorest urban areas. PMID:22515869

  20. Occupational therapy culture seen through the multifocal lens of fieldwork in diverse rural areas.

    PubMed

    Zango Martín, Inmaculada; Flores Martos, Juan Antonio; Moruno Millares, Pedro; Björklund, Anita

    2015-03-01

    Existing occupational therapy culture has not yet fully articulated diverse worldviews on occupation, health, and well-being and the link between them. Taking into consideration the diversity of the global world, incorporating different worldviews would be a valuable contribution to expanding the relevance of occupational therapy. The aim of this research was to analyse worldviews regarding human occupation and the link between occupation, health, and well-being among people from rural Honduras, Morocco, Burkina Faso, Tanzania, and Ecuador. This ethnographic research used three methods, i.e. semi-structured interviews, participant observations, and in-depth interviews, to collect data from 27 participants in five countries. The material was analysed using a Grounded Theory approach. One core category, "Occupations are social practices", was identified and it included three subcategories: "Occupation, health and well-being as a personal and community experience"; "Co-occupations, collective occupations and collaborative occupations are the most important occupations"; and "Occupation, health and well-being mutually influence each other". Conclusion and significance. The overall findings showed that taking different worldviews into account is needed for developing an occupational therapy culture that is useful globally and hosts diverse meanings and occupation-focused practices.

  1. Exposure to particles, elemental carbon and nitrogen dioxide in workers exposed to motor exhaust.

    PubMed

    Lewné, Marie; Plato, Nils; Gustavsson, Per

    2007-11-01

    The main aim of this study was to investigate the personal exposure to diesel and petrol exhaust fumes in occupations when exposure is prevalent and/or high. We also investigated the correlation between the five particle fractions [particles with an aerodynamic diameter <1 microm (PM(1)), particles with an aerodynamic diameter <2.5 microm (PM(2.5)), particles in size 0.1-10 microm, elemental carbon (EC) and total carbon (TC)] and nitrogen dioxide (NO(2)), in the various occupational environments. Seventy-one workers were included in the study. They were subdivided into seven groups depending on working area, working indoors, out of doors or in vehicles and type of exposure (diesel or petrol exhaust). Personal measurements were performed during 3 days per worker. We used five indicators of the particle fraction: PM(1), PM(2.5), particle measured with a real-time monitoring instrument for particles in sizes 0.1 and 10 microm (DataRAM), EC and TC. We used NO(2) as an indicator of the gas phase. Tunnel construction workers showed the highest levels of exposure for all indicators, followed by diesel-exposed garage workers. For the other five groups, the levels were statistically significantly lower, and the differences between the groups were small. The full-shift geometric average of PM(1) varied between 119 microg m(-3) (tunnel construction workers) and 11 microg m(-3) (taxi drivers). For PM(2.5), the levels varied between 231 microg m(-3) (tunnel construction workers) and 16 microg m(-3) (bus and lorry drivers). For the measurements with the real-time monitoring instrument DataRAM, the levels varied between 398 microg m(-3) (tunnel construction workers) and 14 microg m(-3) (taxi drivers). For EC, the levels varied between 87 microg m(-3) (tunnel construction workers) and 4 microg m(-3) (other outdoor workers exposed to diesel exhaust), and for TC, the levels varied between 191 microg m(-3) (tunnel construction workers) and 10 microg m(-3) (taxi drivers). Finally, for NO(2), the levels varied between 350 microg m(-3) (tunnel construction workers) and 32 microg m(-3) (other outdoor workers exposed to diesel exhaust). For the indoor workers exposed to diesel exhaust fumes only, all the indicators correlated comparatively well and statistically significantly to each other (r(2) = 0.44-0.89). For the other groups, correlations were lower and showed no consistent pattern. The tunnel construction workers had exposure levels for all indicator substances that were considerably and significantly higher than for the other groups. The NO(2) levels were higher for indoor workers exposed to diesel exhaust than for all other groups (except tunnel construction workers). All particle fractions, as well as NO(2) correlated well in occupations with indoor exposure to diesel exhaust.

  2. Mass, surface area and number metrics in diesel occupational exposure assessment.

    PubMed

    Ramachandran, Gurumurthy; Paulsen, Dwane; Watts, Winthrop; Kittelson, David

    2005-07-01

    While diesel aerosol exposure assessment has traditionally been based on the mass concentration metric, recent studies have suggested that particle number and surface area concentrations may be more health-relevant. In this study, we evaluated the exposures of three occupational groups-bus drivers, parking garage attendants, and bus mechanics-using the mass concentration of elemental carbon (EC) as well as surface area and number concentrations. These occupational groups are exposed to mixtures of diesel and gasoline exhaust on a regular basis in various ratios. The three groups had significantly different exposures to workshift TWA EC with the highest levels observed in the bus garage mechanics and the lowest levels in the parking ramp booth attendants. In terms of surface area, parking ramp attendants had significantly greater exposures than bus garage mechanics, who in turn had significantly greater exposures than bus drivers. In terms of number concentrations, the exposures of garage mechanics exceeded those of ramp booth attendants by a factor of 5-6. Depending on the exposure metric chosen, the three occupational groups had quite different exposure rankings. This illustrates the importance of the choice of exposure metric in epidemiological studies. If these three occupational groups were part of an epidemiological study, depending on the metric used, they may or may not be part of the same similarly exposed group (SEG). The exposure rankings (e.g., low, medium, or high) of the three groups also changes with the metric used. If the incorrect metric is used, significant misclassification errors may occur.

  3. Occupational adjustment of the prospective payment system wage index

    PubMed Central

    Pope, Gregory C.

    1989-01-01

    In this article, the bias in the Medicare prospective payment system (PPS) hospital wage index that results from its failure to hold hospital occupation mix constant is examined. On average, the difference between the current PPS wage index and a fixed-occupation-mix Laspeyres index is small, approximately 2 percent. However, occupation-mix distortions are substantially larger for a small proportion of labor market areas, especially some in the South. Biases in the wage index resulting from its failure to appropriately account for labor substitution and intra-occupational worker characteristics are also analyzed but are not found to be significant. PMID:10313354

  4. Burden of lung cancer attributable to occupational diesel engine exhaust exposure in Canada.

    PubMed

    Kim, Joanne; Peters, Cheryl E; Arrandale, Victoria H; Labrèche, France; Ge, Calvin B; McLeod, Christopher B; Song, Chaojie; Lavoué, Jérôme; Davies, Hugh W; Nicol, Anne-Marie; Pahwa, Manisha; Demers, Paul A

    2018-04-28

    To estimate the population attributable fraction (PAF) and number of incident and fatal lung cancers in Canada from occupational exposure to diesel engine exhaust (DEE). DEE exposure prevalence and level estimates were used with Canadian Census and Labour Force Survey data to model the exposed population across the risk exposure period (REP, 1961-2001). Relative risks of lung cancer were calculated based on a meta-regression selected from the literature. PAFs were calculated using Levin's equation and applied to the 2011 lung cancer statistics obtained from the Canadian Cancer Registry. We estimated that 2.4% (95% CI 1.6% to 6.6%) of lung cancers in Canada are attributable to occupational DEE exposure, corresponding to approximately 560 (95% CI 380 to 1570) incident and 460 (95% CI 310 to 1270) fatal lung cancers in 2011. Overall, 1.6 million individuals alive in 2011 were occupationally exposed to DEE during the REP, 97% of whom were male. Occupations with the highest burden were underground miners, truck drivers and mechanics. Half of the attributable lung cancers occurred among workers with low exposure. This is the first study to quantify the burden of lung cancer attributable to occupational DEE exposure in Canada. Our results underscore a large potential for prevention, and a large public health impact from occupational exposure to low levels of DEE. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  5. 24 CFR 582.5 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... substantial functional limitations in three or more of the following areas of major life activity: (A) Self... occupancy (SRO) housing means a unit for occupancy by one person, which need not but may contain food...

  6. The Influence of Family on Educational and Occupational Achievement of Adolescents in Rural Low-Income Areas: An Ecological Perspective.

    ERIC Educational Resources Information Center

    Schiamberg, Lawrence B.; Chin, Chong-Hee

    Focusing on the family as a context for the development of life plans by youth, this report summarizes findings of a 14-year longitudinal study on the educational and occupational life plans and achievement of youth in rural low-income areas in six southeastern states. Specific attention is given to (1) how parental educational and occupational…

  7. Meta-analysis of California Spotted Owl (Strix occidentalis occidentalis) territory occupancy in the Sierra Nevada: habitat associations and their implications for forest management

    Treesearch

    Douglas J. Tempel; John J. Keane; R. J. Gutierrez; Jared D. Wolfe; Gavin M. Jones; Alexander Koltunov; Carlos M. Ramirez; William J. Berigan; Claire V. Gallagher; Thomas E. Munton; Paula A. Shaklee; Sheila A. Whitmore; M. Zachariah Peery

    2016-01-01

    We assessed the occupancy dynamics of 275 California Spotted Owl (Strix occidentalis occidentalis) territories in 4 study areas in the Sierra Nevada, California, USA, from 1993 to 2011. We used Landsat data to develop maps of canopy cover for each study area, which we then used to quantify annual territory-specific habitat...

  8. The Physical Learning Environment for Teaching: Child Care Services, Clothing Services, Food Services, Health Services, Home Furnishings Service, Housekeeping Services, and Management Services. Home Economics Occupational Education.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

    Suggestions are given to aid school administrators, area directors, teachers, advisory committees, and architects in planning for the home economics occupational education facility. Requirements are listed for space and equipment for instructional classrooms, laboratories, and laundry and storage areas, as well as space allocation in square feet…

  9. Occupational problems and barriers reported by individuals with obesity.

    PubMed

    Nossum, Randi; Johansen, Ann-Elin; Kjeken, Ingvild

    2018-03-01

    Even if occupational therapists meet many people with obesity in the course of their work, a majority of them do not seem to view weight management as within their area of professional practice. To explore the occupational problems and barriers among persons with severe obesity from an occupational therapy perspective. The study used the Canadian Model of Occupation and Engagement (CMOP-E) and Canadian Occupational Performance Measure (COPM) to identify and analyze prioritized occupational performance problems and barriers perceived by 63 individuals with obesity. The occupational problems individuals with obesity most frequently prioritized comprised playing with (grand)children, purchasing clothes, implementing regular meals and going to the swimming pool, while the barriers they most frequently described were dyspnea, musculoskeletal disorders, narrow chairs and seats, fear of glances and comments from others, and social anxiety. Persons with obesity struggle with a large variety of occupational performance problems, which occur in the dynamic relationship between these individuals, their environment and their occupation. Occupational therapists have the skills to take more active role in helping persons with obesity to perform valued occupations and establish healthier everyday routines.

  10. Occupational Health and Safety. Numeracy. Level 1. Level 2. Level 3. Support Materials for Agricultural Training.

    ERIC Educational Resources Information Center

    Batman, Kangan; Tully, Chris

    This publication contains the three numeracy units of the three levels of Support Materials for Agricultural Training (SMAT) in the area of occupational health and safety: Level 1 (starting), 2 (continuing), and 3 (completing). The units are designed to help the learner improve his or her numeracy skills needed to deal with occupational safety and…

  11. Pilot Study of the Effects of Supraliminal Bipolar Primes on Occupational Educators' Viewing Time and Perceived Confidence with Desktop Virtual Reality

    ERIC Educational Resources Information Center

    Williams, M. Scott

    2008-01-01

    Virtual reality (VR) has been demonstrated to offer learning benefits over traditional instructional methods in many technical and occupational areas. However, in the framework of Rogers' innovation diffusion theory, adoption of VR in Career and Technical Education and occupational programs appears to be lagging. This study used experimental…

  12. Occupational health and safety issues in military field hospitals.

    PubMed

    Bricknell, M C

    2001-10-01

    This paper considers the occupational health and safety issues that apply within a military field hospital. It considers NHS occupational health and safety activities and examines how these might be applied within an Army Medical Services unit. Areas that are unique to field hospitals are highlighted in comparison with a static NHS hospital. Some issues for future work are also considered.

  13. Standards for Quality Programs in Agricultural Occupations in the Secondary Schools and Area Vocational Centers of Illinois. Phase II. A Progress Report.

    ERIC Educational Resources Information Center

    Stitt, Thomas R.; And Others

    The purpose of this project was to prepare materials to be used in the review and evaluation of an agricultural occupations program. Based on standards validated by Illinois agricultural occupations teachers, a standards workbook was developed that included standards specific to agricultural production, agricultural sales and service, agricultural…

  14. Ethics in occupational health and safety: case studies from Gujarat.

    PubMed

    Patel, Jagdish; David, Siddarth

    2016-01-01

    Rapid industrialisation in India is giving employment to millions of people in the formal sector, and many more in the unorganised sector. However, the absence of clear policies, poorly enforced regulations, lack of systematic reporting of occupational diseases, lamentable socioeconomic conditions of the workers and their limited access to healthcare make occupational health and safety (OHS) a critical area.

  15. Standardized Assessment of Biodiversity Trends in Tropical Forest Protected Areas: The End Is Not in Sight.

    PubMed

    Beaudrot, Lydia; Ahumada, Jorge A; O'Brien, Timothy; Alvarez-Loayza, Patricia; Boekee, Kelly; Campos-Arceiz, Ahimsa; Eichberg, David; Espinosa, Santiago; Fegraus, Eric; Fletcher, Christine; Gajapersad, Krisna; Hallam, Chris; Hurtado, Johanna; Jansen, Patrick A; Kumar, Amit; Larney, Eileen; Lima, Marcela Guimarães Moreira; Mahony, Colin; Martin, Emanuel H; McWilliam, Alex; Mugerwa, Badru; Ndoundou-Hockemba, Mireille; Razafimahaimodison, Jean Claude; Romero-Saltos, Hugo; Rovero, Francesco; Salvador, Julia; Santos, Fernanda; Sheil, Douglas; Spironello, Wilson R; Willig, Michael R; Winarni, Nurul L; Zvoleff, Alex; Andelman, Sandy J

    2016-01-01

    Extinction rates in the Anthropocene are three orders of magnitude higher than background and disproportionately occur in the tropics, home of half the world's species. Despite global efforts to combat tropical species extinctions, lack of high-quality, objective information on tropical biodiversity has hampered quantitative evaluation of conservation strategies. In particular, the scarcity of population-level monitoring in tropical forests has stymied assessment of biodiversity outcomes, such as the status and trends of animal populations in protected areas. Here, we evaluate occupancy trends for 511 populations of terrestrial mammals and birds, representing 244 species from 15 tropical forest protected areas on three continents. For the first time to our knowledge, we use annual surveys from tropical forests worldwide that employ a standardized camera trapping protocol, and we compute data analytics that correct for imperfect detection. We found that occupancy declined in 22%, increased in 17%, and exhibited no change in 22% of populations during the last 3-8 years, while 39% of populations were detected too infrequently to assess occupancy changes. Despite extensive variability in occupancy trends, these 15 tropical protected areas have not exhibited systematic declines in biodiversity (i.e., occupancy, richness, or evenness) at the community level. Our results differ from reports of widespread biodiversity declines based on aggregated secondary data and expert opinion and suggest less extreme deterioration in tropical forest protected areas. We simultaneously fill an important conservation data gap and demonstrate the value of large-scale monitoring infrastructure and powerful analytics, which can be scaled to incorporate additional sites, ecosystems, and monitoring methods. In an era of catastrophic biodiversity loss, robust indicators produced from standardized monitoring infrastructure are critical to accurately assess population outcomes and identify conservation strategies that can avert biodiversity collapse.

  16. Standardized Assessment of Biodiversity Trends in Tropical Forest Protected Areas: The End Is Not in Sight

    PubMed Central

    O'Brien, Timothy; Alvarez-Loayza, Patricia; Boekee, Kelly; Campos-Arceiz, Ahimsa; Eichberg, David; Espinosa, Santiago; Fegraus, Eric; Fletcher, Christine; Gajapersad, Krisna; Hallam, Chris; Hurtado, Johanna; Jansen, Patrick A.; Kumar, Amit; Larney, Eileen; Lima, Marcela Guimarães Moreira; Mahony, Colin; Martin, Emanuel H.; McWilliam, Alex; Mugerwa, Badru; Ndoundou-Hockemba, Mireille; Razafimahaimodison, Jean Claude; Romero-Saltos, Hugo; Rovero, Francesco; Salvador, Julia; Santos, Fernanda; Sheil, Douglas; Spironello, Wilson R.; Willig, Michael R.; Winarni, Nurul L.; Zvoleff, Alex; Andelman, Sandy J.

    2016-01-01

    Extinction rates in the Anthropocene are three orders of magnitude higher than background and disproportionately occur in the tropics, home of half the world’s species. Despite global efforts to combat tropical species extinctions, lack of high-quality, objective information on tropical biodiversity has hampered quantitative evaluation of conservation strategies. In particular, the scarcity of population-level monitoring in tropical forests has stymied assessment of biodiversity outcomes, such as the status and trends of animal populations in protected areas. Here, we evaluate occupancy trends for 511 populations of terrestrial mammals and birds, representing 244 species from 15 tropical forest protected areas on three continents. For the first time to our knowledge, we use annual surveys from tropical forests worldwide that employ a standardized camera trapping protocol, and we compute data analytics that correct for imperfect detection. We found that occupancy declined in 22%, increased in 17%, and exhibited no change in 22% of populations during the last 3–8 years, while 39% of populations were detected too infrequently to assess occupancy changes. Despite extensive variability in occupancy trends, these 15 tropical protected areas have not exhibited systematic declines in biodiversity (i.e., occupancy, richness, or evenness) at the community level. Our results differ from reports of widespread biodiversity declines based on aggregated secondary data and expert opinion and suggest less extreme deterioration in tropical forest protected areas. We simultaneously fill an important conservation data gap and demonstrate the value of large-scale monitoring infrastructure and powerful analytics, which can be scaled to incorporate additional sites, ecosystems, and monitoring methods. In an era of catastrophic biodiversity loss, robust indicators produced from standardized monitoring infrastructure are critical to accurately assess population outcomes and identify conservation strategies that can avert biodiversity collapse. PMID:26785119

  17. Career Cruiser.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Bureau of Career Development and Educational Improvement.

    This booklet, which is designed for middle school students in Florida, contains introductory information about the available occupations, possible earnings, and educational requirements of the following occupational clusters/areas: artistic, plants and animals, scientific, protective, mechanical, business detail, industrial, selling,…

  18. Teaching Occupational Health to Physicians

    ERIC Educational Resources Information Center

    Wegman, David H.; And Others

    1978-01-01

    A comprehensive training program is described that prepares students to identify and prevent occupational disease, emphasizing public health. Content areas include epidemiology and biostatistics, toxicology, industrial hygiene, safety and ergonomics, policy issues, administration, and clinical aspects. (Author/LBH)

  19. Fractional statistics and quantum scaling properties of the integrable Penson-Kolb-Hubbard chain

    NASA Astrophysics Data System (ADS)

    Vitoriano, Carlindo; Coutinho-Filho, M. D.

    2010-09-01

    We investigate the ground-state and low-temperature properties of the integrable version of the Penson-Kolb-Hubbard chain. The model obeys fractional statistical properties, which give rise to fractional elementary excitations and manifest differently in the four regions of the phase diagram U/t versus n , where U is the Coulomb coupling, t is the correlated hopping amplitude, and n is the particle density. In fact, we can find local pair formation, fractionalization of the average occupation number per orbital k , or U - and n -dependent average electric charge per orbital k . We also study the scaling behavior near the U -driven quantum phase transitions and characterize their universality classes. Finally, it is shown that in the regime of parameters where local pair formation is energetically more favorable, the ground state exhibits power-law superconductivity; we also stress that above half filling the pair-hopping term stabilizes local Cooper pairs in the repulsive- U regime for U

  20. How mental health occupational therapists address issues of diet with their clients: a qualitative study.

    PubMed

    Mahony, Georgia; Haracz, Kirsti; Williams, Lauren T

    2012-08-01

    Poor diet is a contributing factor to the high rates of obesity and related comorbidities in people with severe mental illness, and dietary change is a key treatment strategy. Providing healthy lifestyle interventions is a recognised role for occupational therapists. However, the existing literature fails to elucidate boundaries of this role. To begin to address this gap in the literature, this study explored the attitudes, actions and beliefs of mental health occupational therapists about providing diet-related interventions. Semi-structured interviews were conducted with mental health occupational therapists working in one Area Health Service in New South Wales. Purposive sampling was used. Data were analysed using Constructivist Grounded Theory methods, where meaning is co-constructed by, and the theory ultimately grounded in the experiences of, the participant and researcher. The participants felt confident providing clients with interventions to promote diet-related skill development and providing general healthy eating education to support this development. However, they were not comfortable providing clients with specific dietary advice. Participants identified a need for further training and support to enhance their effectiveness in providing healthy eating education and highlighted the need for more dietitians in mental health services. The occupational therapists in this study identified clear boundaries of their role in providing diet-related interventions for people with severe mental illness. Suggestions for improvement in this area included further training for occupational therapists as well as increased access to dietitians for those services that lie outside the occupational therapy role. © 2012 The Authors Australian Occupational Therapy Journal © 2012 Occupational Therapy Australia.

  1. Responses of pond-breeding amphibians to wildfire: Short-term patterns in occupancy and colonization

    USGS Publications Warehouse

    Hossack, B.R.; Corn, P.S.

    2007-01-01

    Wildland fires are expected to become more frequent and severe in many ecosystems, potentially posing a threat to many sensitive species. We evaluated the effects of a large, stand-replacement wildfire on three species of pond-breeding amphibians by estimating changes in occupancy of breeding sites during the three years before and after the fire burned 42 of 83 previously surveyed wetlands. Annual occupancy and colonization for each species was estimated using recently developed models that incorporate detection probabilities to provide unbiased parameter estimates. We did not find negative effects of the fire on the occupancy or colonization rates of the long-toed salamander (Ambystoma macrodactylum). Instead, its occupancy was higher across the study area after the fire, possibly in response to a large snowpack that may have facilitated colonization of unoccupied wetlands. Naïve data (uncorrected for detection probability) for the Columbia spotted frog (Rana luteiventris) initially led to the conclusion of increased occupancy and colonization in wetlands that burned. After accounting for temporal and spatial variation in detection probabilities, however, it was evident that these parameters were relatively stable in both areas before and after the fire. We found a similar discrepancy between naïve and estimated occupancy of A. macrodactylum that resulted from different detection probabilities in burned and control wetlands. The boreal toad (Bufo boreas) was not found breeding in the area prior to the fire but colonized several wetlands the year after they burned. Occupancy by B. boreas then declined during years 2 and 3 following the fire. Our study suggests that the amphibian populations we studied are resistant to wildfire and that B. boreas may experience short-term benefits from wildfire. Our data also illustrate how naïve presence–non-detection data can provide misleading results.

  2. Variation in the magnitude of black-white differences in stroke mortality by community occupational structure.

    PubMed Central

    Casper, M; Wing, S; Strogatz, D

    1991-01-01

    STUDY OBJECTIVE--The aim was to examine the patterns of black-white differences in stroke mortality across communities with varying levels of occupational structure in the southern region of the United States DESIGN--Annual age adjusted race-sex specific rates for stroke mortality were calculated for the years 1979-1981 and related to socioeconomic conditions. SETTING--The study involved 211 state economic areas comprising the southern region of the USA. STUDY POPULATION--Data on stroke mortality for black and white men and women between the ages of 35 and 74 years living in the study area were acquired from the National Center for Health Statistics. MEASUREMENTS AND MAIN RESULTS--Occupational structure was measured as the proportion of white collar workers in each state economic area, and is an indicator of the employment opportunities and related social and economic resources of a community. Stratified analyses and linear regression modelling indicate that communities of lower occupational structure have (a) higher levels of stroke mortality for all four race-sex groups (p less than 0.05) and (b) larger racial inequalities in stroke mortality (p less than 0.01). For men and women, the excess stroke mortality among blacks compared to whites is larger in communities of lower occupational structure. CONCLUSIONS--Consideration of occupational structure and related patterns of economic development is crucial for understanding the distribution of stroke mortality within and between racial groups, as well as for planning effective public health interventions. The larger racial inequalities in communities of lower occupational structure in the south suggest that aspects of the black experience which are conducive to high rates of stroke mortality are exacerbated in those communities. Public health interventions to reduce the racial and social inequalities in stroke mortality should recognise the social context within which nutritional, occupational, medical care, and environmental determinants of stroke are distributed. PMID:1795152

  3. Demographic Risk Factors for Alcohol-Related Aggression In and Around Licensed Venues.

    PubMed

    Zinkiewicz, Lucy; Curtis, Ashlee; Meurer, Hannah; Miller, Peter

    2016-03-01

    Few studies have examined the role of gender and both area-level and individual socio-economic status (SES) as independent predictors of alcohol-related aggression (ARA) in and around licensed venues. The aim of the present study was to investigate the relationship between gender, area-level SES and individual SES (operationalised as occupational category) and ARA in and around licensed venues. The sample comprised 697 men and 649 women aged 16-47, who completed a patron intercept survey as part of a larger study assessing trends in harm and stakeholders' views surrounding local community level interventions in dealing with alcohol-related problems in the night-time economy. Binary logistic regression analyses showed that age, gender, occupational category, area-level SES and level of intoxication at time of interview were all significant predictors of involvement in ARA. Being male doubled the odds of involvement in ARA, while age was a protective factor. Blue collar workers had more than double the odds of ARA involvement of professionals, while those living in the most socio-economically disadvantaged areas were over twice as likely to report experiencing ARA compared to those living in the most advantaged areas. However, assessment of the predictive model by gender revealed that effects of age, occupational category and area-level SES were restricted to male participants, with greater intoxication no longer predictive. ARA among patrons was significantly more likely to occur among men, those in blue collar occupations, and individuals living in low SES areas, suggesting both individual and area-level disadvantage may play a role in ARA. © The Author 2015. Medical Council on Alcohol and Oxford University Press. All rights reserved.

  4. Adolescents Occupational and Educational Goals: A Test of Reciprocal Relations

    PubMed Central

    Beal, Sarah J.; Crockett, Lisa J.

    2013-01-01

    During adolescence, young people’s future aspirations and expectations begin to crystallize, especially in the domains of education and occupation. Much of the research in this area has emphasized development within a particular domain (e.g., education) and relations between aspirations and expectations across domains remain largely unexplored, resulting in a lack of information on how goals develop in tandem and affect each other. It is also unclear whether these developmental processes differ by gender and socioeconomic status. We tested reciprocal effects between occupational and educational goals using a longitudinal sample of 636 adolescents (52% boys). Results from dynamic systems models indicated change in occupational and educational goals across high school. For all youth, occupational aspirations predicted change in occupational expectations. Educational expectations predicted change in occupational aspirations for youth in high but not low parent education groups, and occupational expectations predicted change in educational expectations for girls but not boys. PMID:23997383

  5. Components of cognitive competence predictive of occupational competence in persons with dementia: a Delphi study.

    PubMed

    Zur, Briana M; Rudman, Debbie Laliberte; Johnson, Andrew M; Roy, Eric A; Wells, Jennie L

    2013-04-01

    Within the area of dementia care, occupational therapists are asked to predict occupational competence in everyday living and often do so by assessing cognitive competence. Considering the cognitive changes that occur with dementia over time, the construct of cognitive competence is a key consideration. Still, a gap exists in the literature examining the relationship between cognitive competence and occupational competence. This study developed a consensus among participating Canadian occupational therapists regarding the components of cognitive competence they considered essential to predict occupational competence in people with dementia. A three-round Delphi study was completed with English- and French-speaking occupational therapists (n = 127; 116; 125) experienced in dementia care. Ten cognitive components were identified as essential to predict occupational competence in individuals with dementia. The 10 identified components provide direction for assessment practices and education in dementia care and for development of measurement tools.

  6. Spatial and temporal variations in indoor environmental conditions, human occupancy, and operational characteristics in a new hospital building

    DOE PAGES

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.; ...

    2015-03-02

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogatemore » measures for human occupancy and activity in the patient rooms using both indoor air CO₂ concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ~8×10⁶ data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections.« less

  7. Spatial and Temporal Variations in Indoor Environmental Conditions, Human Occupancy, and Operational Characteristics in a New Hospital Building

    PubMed Central

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.; Gilbert, Jack A.; Stephens, Brent

    2015-01-01

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogate measures for human occupancy and activity in the patient rooms using both indoor air CO2 concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ∼8×106 data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections. PMID:25729898

  8. Occupation and lung cancer in two industrialized areas of northern Italy.

    PubMed

    Ronco, G; Ciccone, G; Mirabelli, D; Troia, B; Vineis, P

    1988-03-15

    A population-based case-control study on lung cancer was conducted in 2 industrialized areas of northern Italy. Cases (126) were all males who died from lung cancer between 1976 and 1980. Controls (384) were a random sample of males dying from other causes during the same period. Jobs held during working life have been analyzed according to a list of occupations already known to be causally associated with lung cancer (list A) and a list of occupations suspected of being so (list B). Attributable risk percentages in the population for occupations included in either list A or B were about 36% and 12% in the 2 areas. Welders or workers in industries in which welding is common showed elevated odds ratios: 2.9 for welders (95% CI 0.9-9.8); 4.9 (1.1-22.9) for structural metal workers; 11.4 (2.6-49.9) for workers in structural metal production. Other job categories associated with lung cancer included: electricians and workers in electrical machine production, woodworkers (in furniture or cabinet making, but not in carpentry or joinery) and cleaning services. Smoking did not seem to exert a substantial confounding effect. Attributable risk percentages for tobacco smoking were about 78% and 76% in the population of the 2 areas.

  9. Analyses of non-fatal accidents in an opencast mine by logistic regression model - a case study.

    PubMed

    Onder, Seyhan; Mutlu, Mert

    2017-09-01

    Accidents cause major damage for both workers and enterprises in the mining industry. To reduce the number of occupational accidents, these incidents should be properly registered and carefully analysed. This study efficiently examines the Aegean Lignite Enterprise (ELI) of Turkish Coal Enterprises (TKI) in Soma between 2006 and 2011, and opencast coal mine occupational accident records were used for statistical analyses. A total of 231 occupational accidents were analysed for this study. The accident records were categorized into seven groups: area, reason, occupation, part of body, age, shift hour and lost days. The SPSS package program was used in this study for logistic regression analyses, which predicted the probability of accidents resulting in greater or less than 3 lost workdays for non-fatal injuries. Social facilities-area of surface installations, workshops and opencast mining areas are the areas with the highest probability for accidents with greater than 3 lost workdays for non-fatal injuries, while the reasons with the highest probability for these types of accidents are transporting and manual handling. Additionally, the model was tested for such reported accidents that occurred in 2012 for the ELI in Soma and estimated the probability of exposure to accidents with lost workdays correctly by 70%.

  10. High occupancy vehicle project case studies : historical trends and project experiences

    DOT National Transportation Integrated Search

    1992-08-01

    High-occupancy vehicle (HOV) facilities represent one approach being used in many metropolitan areas today to respond to increasing traffic congestion, declining mobility levels, air quality and environmental concerns, and limited resources. HOV faci...

  11. The stress and underground environment

    NASA Astrophysics Data System (ADS)

    Chama, A.

    2009-04-01

    Currently,the program of prevention in occupational health needs mainly to identify occupational hazards and strategy of their prevention.Among these risks,the stress represents an important psycho-social hazard in mental health,which unfortunately does not spare no occupation.My Paper attempts to highlight and to develop this hazard in its different aspects even its regulatory side in underground environment as occupational environment.In the interest of better prevention ,we consider "the information" about the impact of stress as the second prevention efficient and no expensive to speleologists,hygienists and workers in the underground areas. In this occasion of this event in Vienna,we also highlight the scientific works on the stress of the famous viennese physician and endocrinologist Doctor Hans Selye (1907-1982),nicknamed "the father of stress" and note on relation between biological rhythms in this underground area and psychological troubles (temporal isolation) (Jurgen Aschoff’s works and experiences out-of time).

  12. The Process for the Formulation of the International Telehealth Position Statement for Occupational Therapy

    PubMed Central

    JACOBS, KAREN; CASON, JANA; MCCULLOUGH, ANN

    2015-01-01

    The World Federation of Occupational Therapists (WFOT) consists of 84 member organizations representing over 420,000 occupational therapists internationally (WFOT, 2014). In 2014, WFOT published the WFOT Telehealth Position Statement on the use of telehealth in occupational therapy. The process for the formulation of the official document involved reviewing WFOT member organizations’ telehealth position statements and data collected from a survey sent to member organizations’ delegates in April 2014. Qualitative data from 39 countries yielded factors to consider in five key areas: licensure/registration requirements, the cost of technology, privacy and security, reimbursement/payment models, and other issues (e.g., need for collaboration/transfer of knowledge, client selection, provider competencies, standard of care). The WFOT Telehealth Position Statement addressed each of these areas. The collaborative effort resulting in the development of the WFOT Telehealth Position Statement serves as a model for other international organizations. PMID:27563380

  13. The effects of occupational interventions on reduction of musculoskeletal symptoms in the nursing profession.

    PubMed

    Bos, E H; Krol, B; Van Der Star, A; Groothoff, J W

    2006-06-10

    The objective of the review was to gain more insight into the effects of occupational interventions for primary prevention of musculoskeletal symptoms in healthcare workers. The Cochrane Collaboration methodological guidelines for systematic reviews functioned as a starting point. Thirteen studies meeting the inclusion criteria were analysed for methodological quality and effects. Eight outcome effect areas were established and defined as areas in which an effect had been determined in at least two studies. A method based on levels of scientific evidence was then used to synthesize the information available. Strong scientific evidence for the beneficial effect of occupational interventions was found for the outcome effect areas physical discomfort, technical performance of transfers and frequency of manual lifting. Insufficient evidence was found for the effect areas absenteeism due to musculoskeletal problems, musculoskeletal symptoms, fatigue, perceived physical load and knowledge of risk factors at work and ergonomic principles. Training and education combined with an ergonomic intervention were found to be effective.

  14. Occupational injuries in Italy.

    PubMed

    Baldasseroni, Alberto; Chellini, Elisabetta; Mantero, Silvia; Giovannetti, Lucia

    2005-01-01

    Data collected by the Italian Funds for Occupational Injuries and Diseases (INAIL) on incidence and mortality for occupational injuries in Italy during 1951-2001 are described with respect to the two main occupational sectors, Industry and Services, and Agriculture. Comparisons with other EU countries are included to place the current severe phenomenon in context. An ad hoc analysis aimed at verifying the completeness of the data on occupational fatal accidents collected by INAIL in Tuscany is reported: a linkage between the INAIL data and those registered by the Tuscan Regional Mortality Registry highlights that a number of working areas are not covered by INAIL, a problem whose solution would be useful for primary prevention.

  15. Occupational Lymphohematopoietic Cancer in Korea

    PubMed Central

    Lee, Won Jin; Son, Mia; Kang, Seong-Kyu

    2010-01-01

    The purpose of this study was to review the existing studies on lymphohematopoietic (LHP) cancer in Korea, estimate the prevalence of workers exposed to carcinogens, and determine the population attributable fraction (PAF) of leukemia. Two case series and 4 case reports were reviewed. Using official statistics, the prevalence of benzene exposure and ionizing radiation exposure was estimated. Based on the prevalence of exposure and the relative risk, The PAF of leukemia was calculated. Between 1996 and 2005, 51 cases of LHP cancer were reported from the compensation system. Greater than 50% of occupational LHP cancer was leukemia, and the most important cause was benzene. In a cohort study, the standardized incidence ratio was 2.71 (95% CI, 0.56-7.91). The prevalence of exposure was 2.5% and 2.2% in 1995 and 2000, respectively. Using the 1995 prevalence, 3.6-4.8% and 0.1% of cases with leukemia were attributable to benzene and ionizing radiation exposure, respectively, which resulted in 39.7-51.4 cases per year. Benzene is the most important cause of occupational leukemia in Korea. Considering the estimated PAF in this study, the annual number of occupational LHP cancer (51 cases during 10-yr period), might be underreported within the compensation system. PMID:21258598

  16. The fifth solvatomorph of gallic acid with a supramolecular channel structure: Structural complexity and phase transitions

    NASA Astrophysics Data System (ADS)

    Thomas, Sajesh P.; Kaur, Ramanpreet; Kaur, Jassjot; Sankolli, Ravish; Nayak, Susanta K.; Guru Row, Tayur N.

    2013-01-01

    A new solvatomorph of gallic acid was generated using chiral additive technique and characterized by single crystal and powder X-ray diffraction, C-13 NMR, IR spectroscopic techniques and thermal analysis. The supramolecular channels formed by hexameric motifs of gallic acid and solvent molecules contain highly disordered solvent molecules with fractional occupancies.

  17. Maintenance of order in a moving strong condensate

    NASA Astrophysics Data System (ADS)

    Whitehouse, Justin; Costa, André; Blythe, Richard A.; Evans, Martin R.

    2014-11-01

    We investigate the conditions under which a moving condensate may exist in a driven mass transport system. Our paradigm is a minimal mass transport model in which n - 1 particles move simultaneously from a site containing n > 1 particles to the neighbouring site in a preferred direction. In the spirit of a zero-range process the rate u(n) of this move depends only on the occupation of the departure site. We study a hopping rate u(n) = 1 + b/nα numerically and find a moving strong condensate phase for b > bc(α) for all α > 0. This phase is characterised by a condensate that moves through the system and comprises a fraction of the system's mass that tends to unity. The mass lost by the condensate as it moves is constantly replenished from the trailing tail of low occupancy sites that collectively comprise a vanishing fraction of the mass. We formulate an approximate analytical treatment of the model that allows a reasonable estimate of bc(α) to be obtained. We show numerically (for α = 1) that the transition is of mixed order, exhibiting a discontinuity in the order parameter as well as a diverging length scale as b\\searrow bc .

  18. Tidal Disruption Events Across Cosmic Time

    NASA Astrophysics Data System (ADS)

    Fialkov, Anastasia; Loeb, Abraham

    2017-01-01

    Tidal disruption events (TDEs) of stars by single or binary super-massive black holes illuminate the environment around quiescent black holes in galactic nuclei allowing to probe dorment black holes. We predict the TDE rates expected to be detected by next-generation X-ray surveys. We include events sourced by both single and binary super-massive black holes assuming that 10% of TDEs lead to the formation of relativistic jets and are therefore observable to higher redshifts. Assigning the Eddington luminosity to each event, we show that if the occupation fraction of intermediate black holes is high, more than 90% of the brightest TDE might be associated with merging black holes which are potential sources for eLISA. Next generation telescopes with improved sensitivities should probe dim local TDE events as well as bright events at high redshifts. We show that an instrument which is 50 times more sensitive than the Swift Burst Alert Telescope (BAT) is expected to trigger ~10 times more events than BAT. Majority of these events originate at low redshifts (z<0.5) if the occupation fraction of IMBHs is high and at high-redshift (z>2) if it is low.

  19. Occupational Diversity of Rural Residents in Virginia: A Research Study of Multiple Job Holding and Labor Exchange. Virginia Higher Education Research Project No. 2034410.

    ERIC Educational Resources Information Center

    Bryant, Clifton D.; And Others

    For a 1979 study of occupational division of labor in rural areas, in-depth interviews conducted with 541 randomly selected respondents from 4 Virginia counties examined socio-demographic parameters (age, sex, race, and occupation); degree of involvement in multiple job holding; economic and social-psychological motives for participation in…

  20. Apollo 11 impact on the occupational medicine program, NASA Manned Spacecraft Center

    NASA Technical Reports Server (NTRS)

    Wright, P. E.

    1969-01-01

    Requirements and development of standards for occupational medicine support of personnel in the Lunar Receiving Laboratory (LRL) are outlined. Considered are proper personnel performance and exclusion of people prone to develop a serious illness within the quarantine area. Occupational medicine report for the LRL consists of examination procedures covering laboratory work, periodic examinations, immunizations, health maintenance, preventive practices, medical standards, and waiver authority.

  1. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Metalworking.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of metalworking.…

  2. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Electrical Program.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of electrical…

  3. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Business/Data Processing.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of business/data…

  4. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Drafting.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of drafting.…

  5. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for the Cosmetology Program.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of cosmetology.…

  6. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Electronics Program.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of electronics.…

  7. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for the Practical Nursing Program.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of practical…

  8. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Auto Mechanics.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of auto mechanics.…

  9. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Woodworking.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of woodworking.…

  10. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Child Care.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of child care.…

  11. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Plumbing.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of plumbing.…

  12. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Distributive Education.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of distributive…

  13. WE SHALL NOT REST, REPORT ON OCCUPATIONAL EDUCATION IN THE SOUTH, BASED ON DISCUSSIONS AT THE SOUTHWIDE CONFERENCE ON OCCUPATIONAL EDUCATION (ATLANTA, GA., APRIL 5-6, 1967).

    ERIC Educational Resources Information Center

    Southern Association of Colleges and Schools, Atlanta, GA.

    THE DISCUSSIONS, PRESENTATIONS, AND RECOMMENDATIONS OF 125 BUSINESS EXECUTIVES, EDUCATORS, AND GOVERNMENTAL REPRESENTATIVES AT A CONFERENCE CONCERNING OCCUPATIONAL EDUCATION AND ITS IMPORTANCE TO THE SOUTH ARE SUMMARIZED. THE AREAS DISCUSSED ARE--(1) THE NEED FOR EDUCATION TO SUPPLY A WIDE SPECTRUM OF OPPORTUNITY FOR STUDENTS TO ACQUIRE IMPORTANT…

  14. Characterization of magnetic spherical fractions in sand deposits for interpretation of environmental change around the El- Zayyan temple, Kharga Oasis, Western Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Watanabe, Makiko; Koizumi, Natsuko; Kato, Sayuri; Kikuchi, Ryohei; Kamei, Hiroyuki

    2014-05-01

    Desertification in North Africa has rapidly advanced over the last 6,000 years. Such environmental changes began in the Early Dynastic Period of Egypt (4200 - 3150 BC), and the occupation of Achaemenid Persian and Roman cultures in Egypt occurred under even drier climates. Kharga is the largest oasis of the five oases, located in the western desert of Egypt that contains a treasure trove of archaeological resources. This oasis has been highlighted to promote resource exploration and development of archaeological tourism since the 1980's. The El-Zayyan temple is located 27 km south of the central Kharga oasis. Zayyan was once called 'Tchonemyris', which has connection with the means of 'huge well' in Greek. Although major portions of the temple were rebuilt in 140 AD during the rule of the Roman Emperor Antoninus Pius, this temple is considered to be originally built in the Ptolemaic period (4c-1c BC). It is likely that the area had a sufficient water supply in the past as the El-Zayyan temple stands at the lowest point (-18 m a.s.l.) in the Kharga oasis. Furthermore, the El-Ghueita temple that stands on a hill top at 68.5 m a.s.l., 4 km northward from the El-Zayyan temple, has given name that means 'beautiful garden' in Greek. From these facts, we can imagine that the past landscape of this area contained green surroundings. The El-Ghueita temple was well known as a production centre of high quality wine since the mid-Dynastic age (2050 -1786 BC). As this area is currently arid, it is expected that there were irrigation facilities to maintain the vast farm land during the ancient period. To deepen our knowledge of how people developed their technologies and conducted their life within the natural environment of a drastic drying period, understanding the process of environmental change on a region scale is necessary. The aim of this study was to extract proxies from sand deposits in the western desert area to estimate the change in the environment. We examined the sand layers with a focus on the spherical magnetic fractions having relations with accumulation of free iron oxides, condition of water and microbial activities. The study sites were located west of the El-Zayyan temple, and six and seven samples were collected every 10 cm from the two sand profiles, Zy-R and Zy-6, respectively. AMS 14C dating was conducted using fine fractions of an organo-mineral complex; date ranges 5,000-8,400 yBP and 5,500-7,800 yBP were assigned to Zy-R and Zy-6, respectively. Spherical fractions, separated into six colored-types, were extracted using a neodymium magnet, and then characterized by SEM observation, EDX elemental analysis (FE-SEM S4700, Hitachi, Genesis, EDAX), and X-ray micro-crystal structural analysis (D8-Discover, Bruker axs) to discuss their origins. The vertical change in the density of each fraction by weight and counts in sand revealed the environmental change.

  15. Changes in indoor pollutants since the 1950s

    NASA Astrophysics Data System (ADS)

    Weschler, Charles J.

    Over the past half-century there have been major changes in building materials and consumer products used indoors. Composite-wood, synthetic carpets, polymeric flooring, foam cushioning, plastic items and scented cleaning agents have become ubiquitous. The same is true for mechanical and electrical appliances such as washer/dryers, TVs and computers. These materials and products emit an array of chemicals including solvents, unreacted monomers, and additives. The consequent changes in emission profiles for indoor pollutants have been accompanied by modifications in building operations. Residences and non-residences are less ventilated than they were decades ago. Air-conditioned buildings are more numerous, especially in certain parts of the world. Most of these recirculate a high fraction of their air. The personal habits of building occupants, including the fraction who smoke indoors, have also changed. Taken together, these changes have altered the kind and concentrations of chemicals that occupants are exposed to in their homes, workplaces and schools. Since the 1950s, levels of certain indoor pollutants (e.g., formaldehyde, aromatic and chlorinated solvents, chlorinated pesticides, PCBs) have increased and then decreased. Levels of other indoor pollutants have increased and remain high (e.g., phthalate esters, brominated flame-retardants, nonionic surfactants and their degradation products). Many of the chemicals presently found in indoor environments, as well as in the blood and urine of occupants, were not present 50 years ago. Given the public's exposure to such species, there would be exceptional value in monitoring networks that provided cross-sectional and longitudinal information regarding pollutants found in representative buildings.

  16. Descriptive profile of the academic integrity of Australian occupational therapy students.

    PubMed

    Brown, Ted; Isbel, Stephen; Bourke-Taylor, Helen; Gustafsson, Louise; McKinstry, Carol; Logan, Alexandra

    2018-04-10

    Academic integrity is the moral code of academia. Students who demonstrate trustworthiness in an academic setting are more likely to be dependable in a clinical setting. It is, therefore, important for occupational therapy academic and fieldwork educators to know the academic integrity profile of their students and to address any areas of academic dishonesty in curriculum design and delivery. To date, there has been no baseline description of the academic honesty profile of Australian occupational therapy students. To establish a baseline of academic integrity and academic dishonesty among occupational therapy undergraduate and graduate-entry masters students in a cohort of Australian students. Seven hundred and one students from five Australian universities completed a self-report questionnaire comprising demographic questions and six standardised scales measuring academic integrity. Overall, occupational therapy students reported high levels of academic and fieldwork integrity; however, some areas of concerns exist. Students report copying material without citations at least once during their studies (55%), obtaining test questions at least once during their studies (42.6%) or padding out a bibliography (39.5%). Occupational therapy education needs to continue to emphasise the importance of academic and fieldwork integrity. Students need to be explicitly taught what academic honesty and dishonesty is and be provided with the resources and time to complete academic work to reduce the risk of academic dishonesty. © 2018 Occupational Therapy Australia.

  17. Implications of Occupational Disorder on Ion Mobility in Li4Ti5O12 Battery Materials.

    PubMed

    Heenen, Hendrik H; Scheurer, Christoph; Reuter, Karsten

    2017-06-14

    Lithium-titanium-oxide (Li 4 Ti 5 O 12 , LTO) is unique among battery materials due to its exceptional cyclability and high rate capability. This performance is believed to derive at least partly from the occupational disorder introduced via mixed Li/Ti occupancy in the LTO spinel-like structure. We explore the vast configuration space accessible during high-temperature LTO synthesis by Monte Carlo sampling and indeed find lowest-energy structures to be characterized by a high degree of microscopic inhomogeneity. Dynamical simulations in corresponding configurations reveal the dominant fraction of Li ions to be immobile on nanosecond time scales. However, Ti antisite-like defects stabilized by the configurational disorder give rise to a novel correlated ion diffusion mechanism. The resulting fast but localized diffusion could be a key element in the sudden rise in conductivity found in LTO in the early stages of charging and questions the validity of ion mobility measurements for this and other configurationally disordered materials.

  18. Comparison of Peak-area Ratios and Percentage Peak Area Derived from HPLC-evaporative Light Scattering and Refractive Index Detectors for Palm Oil and its Fractions.

    PubMed

    Ping, Bonnie Tay Yen; Aziz, Haliza Abdul; Idris, Zainab

    2018-01-01

    High-Performance Liquid Chromatography (HPLC) methods via evaporative light scattering (ELS) and refractive index (RI) detectors are used by the local palm oil industry to monitor the TAG profiles of palm oil and its fractions. The quantitation method used is based on area normalization of the TAG components and expressed as percentage area. Although not frequently used, peak-area ratios based on TAG profiles are a possible qualitative method for characterizing the TAG of palm oil and its fractions. This paper aims to compare these two detectors in terms of peak-area ratio, percentage peak area composition, and TAG elution profiles. The triacylglycerol (TAG) composition for palm oil and its fractions were analysed under similar HPLC conditions i.e. mobile phase and column. However, different sample concentrations were used for the detectors while remaining within the linearity limits of the detectors. These concentrations also gave a good baseline resolved separation for all the TAGs components. The results of the ELSD method's percentage area composition for the TAGs of palm oil and its fractions differed from those of RID. This indicates an unequal response of TAGs for palm oil and its fractions using the ELSD, also affecting the peak area ratios. They were found not to be equivalent to those obtained using the HPLC-RID. The ELSD method showed a better baseline separation for the TAGs components, with a more stable baseline as compared with the corresponding HPLC-RID. In conclusion, the percentage area compositions and peak-area ratios for palm oil and its fractions as derived from HPLC-ELSD and RID were not equivalent due to different responses of TAG components to the ELSD detector. The HPLC-RID has a better accuracy for percentage area composition and peak-area ratio because the TAG components response equally to the detector.

  19. The power of local action in occupational health: the adoption of local exhaust ventilation in the Chicago tuckpointing trade.

    PubMed

    Weinstein, Marc; Susi, Pam; Goldberg, Mark

    2016-04-01

    Silica is a pervasive and potentially deadly occupational hazard in construction. The occupational risk posed by silica has long been known, but efforts to use engineering controls to minimize dust generation in tuckpointing operations, a masonry restoration specialty, have been slow. The objective of this study is to explore how local innovation in occupational safety and health may emerge, absent the establishment of national standards. This study uses a case study to explore the adoption of local exhaust ventilation in tuckpointing operations in the Chicago area. Sources of data for this research include interviews with a diverse range of key informants and the review of archival material. This case study found local unions, municipal regulators, contractors, and major public users of construction services played a central role in the events and milestones that led to the early adoption of local exhaust ventilation in Chicago. The adoption of local exhaust ventilation technology in Chicago demonstrates the potential for local actors to fill an important void when rulemaking in vital areas of occupational of health impedes effective national regulation.

  20. Modeling Net Land Occupation of Hydropower Reservoirs in Norway for Use in Life Cycle Assessment.

    PubMed

    Dorber, Martin; May, Roel; Verones, Francesca

    2018-02-20

    Increasing hydropower electricity production constitutes a unique opportunity to mitigate climate change impacts. However, hydropower electricity production also impacts aquatic and terrestrial biodiversity through freshwater habitat alteration, water quality degradation, and land use and land use change (LULUC). Today, no operational model exists that covers any of these cause-effect pathways within life cycle assessment (LCA). This paper contributes to the assessment of LULUC impacts of hydropower electricity production in Norway in LCA. We quantified the inundated land area associated with 107 hydropower reservoirs with remote sensing data and related it to yearly electricity production. Therewith, we calculated an average net land occupation of 0.027 m 2 ·yr/kWh of Norwegian storage hydropower plants for the life cycle inventory. Further, we calculated an adjusted average land occupation of 0.007 m 2 ·yr/kWh, accounting for an underestimation of water area in the performed maximum likelihood classification. The calculated land occupation values are the basis to support the development of methods for assessing the land occupation impacts of hydropower on biodiversity in LCA at a damage level.

  1. An occupational exposure assessment for engineered nanoparticles used in semiconductor fabrication.

    PubMed

    Shepard, Michele Noble; Brenner, Sara

    2014-03-01

    Engineered nanoparticles of alumina, amorphous silica, and ceria are used in semiconductor device fabrication during wafer polishing steps referred to as 'chemical mechanical planarization' (CMP). Some metal oxide nanoparticles can impact the biological response of cells and organ systems and may cause adverse health effects; additional research is necessary to better understand potential risks from nanomaterial applications and occupational exposure scenarios. This study was conducted to assess potential airborne exposures to nanoparticles and agglomerates using direct-reading instruments and filter-based samples to characterize workplace aerosols by particle number, mass, size, composition, and morphology. Sampling was repeated for tasks in three work areas (fab, subfab, wastewater treatment) at a facility using engineered nanoparticles for CMP. Real-time measurements were collected using a condensation particle counter (CPC), optical particle counter, and scanning mobility particle spectrometer (SMPS). Filter-based samples were analyzed for total mass or the respirable fraction, and for specific metals of interest. Additional air sample filters were analyzed by transmission electron microscopy with energy dispersive x-ray spectroscopy (TEM/EDX) for elemental identification and to provide data on particle size, morphology, and concentration. Peak concentrations measured on the CPC ranged from 1 to 16 particles per cubic centimeter (P cm(-3)) for background and from 4 to 74 P cm(-3) during tasks sampled in the fab; from 1 to 60 P cm(-3) for background and from 3 to 84 P cm(-3) for tasks sampled in the subfab; and from 1160 to 45 894 P cm(-3) for background and from 1710 to 45 519 P cm(-3) during wastewater treatment system filter change tasks. Significant variability was seen among the repeated task measurements and among background comparisons in each area. Several data analysis methods were used to compare each set of task and background measurements. Increased concentrations of respirable particles were identified for some tasks sampled in each work area, although of relatively low magnitude and inconsistently among repeated measurements for specific tasks. Measurements with a portable SMPS indicated that nanoparticle number concentrations (channels 11.5-115.5nm) increased above background levels by 3.2 P cm(-3) during CMP tool set-up in the fab area but were not elevated when changing filters for the CMP wastewater treatment system. All results from mass concentration analysis were below the limits of detection. Characterization by TEM/EDX identified structures containing the elements of interest (Al, Si), primarily as agglomerates or aggregates in the 100-1000nm size range. Although health-based occupational exposure limits have not been established for nanoscale alumina, silica, or ceria, the measured concentrations by number and mass were below currently proposed benchmarks or reference values for poorly soluble low-toxicity nanoparticles.

  2. QUANTITATIVE PLUTONIUM MICRODISTRIBUTION IN BONE TISSUE OF VERTEBRA FROM A MAYAK WORKER

    PubMed Central

    Lyovkina, Yekaterina V.; Miller, Scott C.; Romanov, Sergey A.; Krahenbuhl, Melinda P.; Belosokhov, Maxim V.

    2010-01-01

    The purpose was to obtain quantitative data on plutonium microdistribution in different structural elements of human bone tissue for local dose assessment and dosimetric models validation. A sample of the thoracic vertebra was obtained from a former Mayak worker with a rather high plutonium burden. Additional information was obtained on occupational and exposure history, medical history, and measured plutonium content in organs. Plutonium was detected in bone sections from its fission tracks in polycarbonate film using neutron-induced autoradiography. Quantitative analysis of randomly selected microscopic fields on one of the autoradiographs was performed. Data included fission fragment tracks in different bone tissue and surface areas. Quantitative information on plutonium microdistribution in human bone tissue was obtained for the first time. From these data, quantitative relationship of plutonium decays in bone volume to decays on bone surface in cortical and trabecular fractions were defined as 2.0 and 0.4, correspondingly. The measured quantitative relationship of decays in bone volume to decays on bone surface does not coincide with recommended models for the cortical bone fraction by the International Commission on Radiological Protection. Biokinetic model parameters of extrapulmonary compartments might need to be adjusted after expansion of the data set on quantitative plutonium microdistribution in other bone types in human as well as other cases with different exposure patterns and types of plutonium. PMID:20838087

  3. Introduction to special issue on burnout and health.

    PubMed

    Schaufeli, W B; Greenglass, E R

    2001-09-01

    Abstract In recent years, the issue of occupational stress and burnout have received increasing research attention. Given the amount of time people spend on work-related activities and the central importance of work to one's sense of identity and self-worth, it is not surprising that occupational stress is regarded as a central area of study. Although burnout is linked to the extensive literature on occupational health, burnout goes beyond occupational health by focusing on specific stressors in the workplace to emphasize total life and environmental pressures affecting health.

  4. Careers in the Aerospace Industry.

    ERIC Educational Resources Information Center

    Federal Aviation Administration (DOT), Washington, DC. Office of General Aviation.

    The document briefly presents career information in the field of aerospace industry. Employment exists in three areas: (1) professional and technical occupations in research and development (engineers, scientists, and technicians); (2) administrative, clerical, and related occupations (engineers, scientists, technicians, clerks, secretaries,…

  5. Vapor, Dust and Smoke Exposure in relation to adult-onset asthma and chronic respiratory symptoms: The Singapore Chinese Health Study

    PubMed Central

    LeVan, Tricia D.; Koh, Woon-Puay; Lee, Hin-Peng; Koh, David; Yu, Mimi C.; London, Stephanie J.

    2006-01-01

    Occupational factors contribute to a significant fraction of respiratory disease and symptoms. We evaluated the role of occupational exposures on asthma, chronic bronchitis, and respiratory symptoms in a population-based cohort, the Singapore Chinese Health Study. History of occupations, occupational exposures, and respiratory conditions were collected by interviews with 52,325 Singaporeans born 1918–1953. Exposure to dusts, from cotton, wood, metal, mineral and/or asbestos, was associated with non-chronic cough and/or phlegm (OR = 1.19, 95% CI = 1.08, 1.30), chronic bronchitis (OR = 1.26, 95% CI = 1.01, 1.57) and adult-onset asthma (OR = 1.14, 95% CI = 1.00, 1.30). Cotton dust was the major component contributing to respiratory symptoms. Vapor exposure, from chemical solvents, dyes, cooling oils, paints, wood preservatives and/or pesticides, was associated with non-chronic cough or phlegm (OR = 1.14, 95% CI = 1.03, 1.27), chronic dry cough (OR = 1.55, 95% CI = 1.19, 2.01) and adult-onset asthma (OR = 1.34, 95% CI = 1.15, 1.56). Chemical solvents, cooling oils and pesticides were the major sources contributing to respiratory symptoms. These data support the role of occupational exposures in the etiology of respiratory illness in a population-based cohort in Singapore with a low prevalence of atopic illness. PMID:16707657

  6. Evaluation of the Impact of Ambient Temperatures on Occupational Injuries in Spain.

    PubMed

    Martínez-Solanas, Èrica; López-Ruiz, María; Wellenius, Gregory A; Gasparrini, Antonio; Sunyer, Jordi; Benavides, Fernando G; Basagaña, Xavier

    2018-06-01

    Extreme cold and heat have been linked to an increased risk of occupational injuries. However, the evidence is still limited to a small number of studies of people with relatively few injuries and with a limited geographic extent, and the corresponding economic effect has not been studied in detail. We assessed the relationship between ambient temperatures and occupational injuries in Spain along with its economic effect. The daily number of occupational injuries that caused at least one day of leave and the daily maximum temperature were obtained for each Spanish province for the years 1994-2013. We estimated temperature-injuries associations with distributed lag nonlinear models, and then pooled the results using a multivariate meta-regression model. We calculated the number of injuries attributable to cold and heat, the corresponding workdays lost, and the resulting economic effect. The study included 15,992,310 occupational injuries. Overall, 2.72% [95% confidence interval (CI): 2.44-2.97] of all occupational injuries were attributed to nonoptimal ambient temperatures, with moderate heat accounting for the highest fraction. This finding corresponds to an estimated 0.67 million (95% CI: 0.60-0.73) person-days of work lost every year in Spain due to temperature, or an annual average of 42 d per 1,000 workers. The estimated annual economic burden is €370 million, or 0.03% of Spain's GDP (€2,015). Our findings suggest that extreme ambient temperatures increased the risk of occupational injuries, with substantial estimated health and economic costs. These results call for public health interventions to protect workers in the context of climate change. https://doi.org/10.1289/EHP2590.

  7. The assumed relation between occupation and inequality in health.

    PubMed

    Madsen, Jacob; Kanstrup, Anne Marie; Josephsson, Staffan

    2016-01-01

    Occupational science and therapy scholars have argued that research on inequality in health is needed. Simultaneously, a knowledge gap between how to understand and take action on health inequalities exists in occupational science and therapy. To identify how inequality in health, high-risk areas of health, and engagement in health for low-income adult citizens have been described and conceptualized in contemporary occupational science and therapy literature. A structured literature review of 37 publications in occupational science and therapy literature, published from 2004 to 2014. The review revealed several descriptions and conceptualizations based on environmental, social, cultural, historical, and personal perspectives on occupation and already existing occupational science concepts. However, these descriptions were mainly based on assumptions regarding the relation between occupation and inequality in health, and statements on the need to explore this relation. Basic theory and reasoning, as well as empirical studies, on inequality in health are missing in occupational science and therapy. Based on the findings and theoretical trends, the authors suggest a transactional perspective on occupation is a possible frame for understanding inequality in health and related issues.

  8. Elemental properties of coal slag and measured airborne exposures at two coal slag processing facilities

    PubMed Central

    Mugford, Christopher; Boylstein, Randy; Gibbs, Jenna L

    2017-01-01

    In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of silica sand abrasives containing >1% silica due to the risk of silicosis. This gave rise to substitutes including coal slag. An Occupational Safety and Health Administration investigation in 2010 uncovered a case cluster of suspected pneumoconiosis in four former workers at a coal slag processing facility in Illinois, possibly attributable to occupational exposure to coal slag dust. This article presents the results from a National Institute for Occupational Safety and Health industrial hygiene survey at the same coal slag processing facility and a second facility. The industrial hygiene survey consisted of the collection of: a) bulk samples of unprocessed coal slag, finished granule product, and settled dust for metals and silica; b) full-shift area air samples for dust, metals, and crystalline silica; and c) full-shift personal air samples for dust, metals, and crystalline silica. Bulk samples consisted mainly of iron, manganese, titanium, and vanadium. Some samples had detectable levels of arsenic, beryllium, cadmium, and cobalt. Unprocessed coal slags from Illinois and Kentucky contained 0.43–0.48% (4,300–4,800 mg/kg) silica. Full-shift area air samples identified elevated total dust levels in the screen (2–38 mg/m3) and bag house (21 mg/m3) areas. Full-shift area air samples identified beryllium, chromium, cobalt, copper, iron, nickel, manganese, and vanadium. Overall, personal air samples for total and respirable dust (0.1–6.6 mg/m3 total; and 0.1–0.4 mg/m3 respirable) were lower than area air samples. All full-shift personal air samples for metals and silica were below published occupational exposure limits. All bulk samples of finished product granules contained less than 1% silica, supporting the claim coal slag may present less risk for silicosis than silica sand. We note that the results presented here are solely from two coal slag processing facilities, and more in-depth air monitoring is needed to better characterize occupational exposure to coal slag dust, metals, and silica at similar facilities. PMID:27808662

  9. Elemental properties of coal slag and measured airborne exposures at two coal slag processing facilities.

    PubMed

    Mugford, Christopher; Boylstein, Randy; Gibbs, Jenna L

    2017-05-01

    In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of silica sand abrasives containing >1% silica due to the risk of silicosis. This gave rise to substitutes including coal slag. An Occupational Safety and Health Administration investigation in 2010 uncovered a case cluster of suspected pneumoconiosis in four former workers at a coal slag processing facility in Illinois, possibly attributable to occupational exposure to coal slag dust. This article presents the results from a National Institute for Occupational Safety and Health industrial hygiene survey at the same coal slag processing facility and a second facility. The industrial hygiene survey consisted of the collection of: (a) bulk samples of unprocessed coal slag, finished granule product, and settled dust for metals and silica; (b) full-shift area air samples for dust, metals, and crystalline silica; and (c) full-shift personal air samples for dust, metals, and crystalline silica. Bulk samples consisted mainly of iron, manganese, titanium, and vanadium. Some samples had detectable levels of arsenic, beryllium, cadmium, and cobalt. Unprocessed coal slags from Illinois and Kentucky contained 0.43-0.48% (4,300-4,800 mg/kg) silica. Full-shift area air samples identified elevated total dust levels in the screen (2-38 mg/m 3 ) and bag house (21 mg/m 3 ) areas. Full-shift area air samples identified beryllium, chromium, cobalt, copper, iron, nickel, manganese, and vanadium. Overall, personal air samples for total and respirable dust (0.1-6.6 mg/m 3 total; and 0.1-0.4 mg/m 3 respirable) were lower than area air samples. All full-shift personal air samples for metals and silica were below published occupational exposure limits. All bulk samples of finished product granules contained less than 1% silica, supporting the claim coal slag may present less risk for silicosis than silica sand. We note that the results presented here are solely from two coal slag processing facilities, and more in-depth air monitoring is needed to better characterize occupational exposure to coal slag dust, metals, and silica at similar facilities.

  10. Survey of Student Interest in Home Economics Wage-Earning Programs and Employment Opportunities in Home Economics Related Occupations in Dade County, Florida.

    ERIC Educational Resources Information Center

    Hein, Margaret R.

    Occupational areas and coincident student interest in home economics were surveyed in Dade County to provide a basis for future program planning. Surveyed were 11,402 junior and senior high school students enrolled in home and family education courses in May 1972 and 64 employers in home economics related occupations. A series of recommendations…

  11. An Empirical Determination of Tasks Essential to Successful Performance as a Chemical Applicator. Determination of a Common Core of Basic Skills in Agribusiness and Natural Resources.

    ERIC Educational Resources Information Center

    Miller, Daniel R.; And Others

    To improve vocational educational programs in agriculture, occupational information on a common core of basic skills within the occupational area of the chemical applicator is presented in the revised task inventory survey. The purpose of the occupational survey was to identify a common core of basic skills which are performed and are essential…

  12. Moral Waivers and Suitability for High Security Military Jobs

    DTIC Science & Technology

    1988-12-01

    Score 9 High School Diploma 10 Service Entry Variables 11 Months in the Delayed Entry Program (DEP) 11 DoD Primary Occupation Code ( DPOC ) 14...services 6 4. DoD Primary Occupational ( DPOC ) Areas 14 5. Cumulative percentage of personnel who received Bis during first six months of...Entry Variables - Months in the Delayed Entry Program (DEP) - DoD Primary Occupation Code ( DPOC ) Clearance Criteria - Issue case - Clearance status

  13. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for the Quantity Foods Program.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of quantity foods.…

  14. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Graphic Arts and Graphic Design.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of graphic arts and…

  15. Fall Department Head Report--Reporting Booklet 2.0 to the Massachusetts Division of Occupational Education (Fiscal Year Ending June 30, 1975) for Auto Body.

    ERIC Educational Resources Information Center

    Management and Information System for Occupational Education, Winchester, MA.

    The reporting booklet is required for the Census Data System (CDS) of the Management Information System for Occupational Education (MISOE); it contains the reporting forms which collect data that describe program structure and job-entry skill outcomes expected of program completors in the individual occupational education area of auto body repair.…

  16. Is globalisation outpacing ethics and social responsibility in occupational health?

    PubMed

    Voyi, Kuku

    2006-01-01

    The definition of globalisation is varied. However, one certainty is that in a globalised world the borders are porous in many aspects; people movement, goods exchange, knowledge sharing and redistribution of labour. The concept of globalisation, its impact on society, and its direction leads to a two-sided argument. Could this be the effect of globalisation on ethics and social responsibility, as it is perceived? This paper endeavours to further our understanding of the dynamic relationship of globalisation, ethics and social responsibility in occupational health. The multidisciplinary activity approach to occupational health was used. The globalisation, ethical and social responsibility relationship of the activities in occupational health was analysed using a schematic map of the direct and indirect influences. The analysis revealed areas that can be clustered to address the interaction between driving forces in occupational health ethics and social responsibility for a healthy workforce. Each cluster is discussed highlighting areas of concern. In the discussion proposals are made on how we can modify the way we think in order to avoid repeating mistakes. Suggestion is made of using an innovative method borrowed from other disciplines and adopted for use in occupational health. A partnership approach is proposed and explored on how it will be applied in situations of unequal balance of power.

  17. Genital malformations in newborns of female nickel-refinery workers.

    PubMed

    Vaktskjold, Arild; Talykova, Ljudmila Vasiljevna; Chashchin, Valerij Petrovitsj; Nieboer, Evert; Thomassen, Yngvar; Odland, Jon Oyvind

    2006-02-01

    This study investigated whether pregnant women employed in nickel-exposed work areas are at elevated risk of delivering a newborn with a genital malformation. In this register-based cohort study, data about pregnancy outcome and occupation were obtained using the Kola Birth Registry. Each record in the Registry was assigned a categorical nickel exposure rating according to the occupation the delivering woman had at the time of becoming pregnant, using, as guidelines, the water-soluble nickel subfraction of the inhalable aerosol fraction obtained by personal monitoring for nickel-refinery workers or the measured urinary nickel concentrations. The reference population comprised delivering women from Moncegorsk with a background exposure level. The association of the outcome with the assigned exposure ratings was analyzed in a logistic regression model, adjusted for parity, maternal malformation, exposure to solvents, and infection in early pregnancy. The odds ratio for nickel-exposed women delivering a newborn with a genital malformation was 0.81 [95% confidence interval (95% CI) 0.52-1.26], and that for an undescended testicle was 0.76 (95% CI 0.40-1.47). In this study no negative effect of maternal exposure to water-soluble nickel was found on the risk of delivering a newborn with malformations of the genital organs. The results should be interpreted with caution since there were few cases in the higher exposure groups. The findings do not exclude the possibility of an effect on the risk of other congenital malformations and adverse outcomes (including reduced fertility).

  18. Occupational exposure to airborne asbestos from phenolic molding material (Bakelite) during sanding, drilling, and related activities.

    PubMed

    Mowat, Fionna; Bono, Michael; Lee, R J; Tamburello, Susan; Paustenbach, Dennis

    2005-10-01

    In this study, a historical phenolic (Bakelite) molding material, BMMA-5353, was tested to determine the airborne concentrations of asbestos fibers released during four different activities (sawing, sanding, drilling, and cleanup of dust generated from these activities). Each activity was performed for 30 min, often in triplicate. The primary objective for testing BMMA-5353 was to quantitatively determine the airborne concentration of asbestos fibers, if any, in the breathing zone of workers. Uses of this product typically did not include sawing or sanding, but it may have been drilled occasionally. For this reason, only small quantities were sawed, sanded, and drilled in this simulation study. Personal (n = 40), area (n = 80), and background/clearance (n = 88) air samples were collected during each activity and analyzed for total fiber concentrations using phase contrast microscopy (PCM) and, for asbestos fiber counts, transmission electron microscopy (TEM). The raw PCM-total fiber concentrations were adjusted based on TEM analyses that reported the fraction of asbestos fibers, to derive a PCM-asbestos concentration that would enable calculation of an 8-hour time-weighted average (TWA). The estimated 8-hour TWAs ranged from 0.006 to 0.08 fibers per cubic centimeter using a variety of worker exposure scenarios. Therefore, assuming an exposure scenario in which a worker uses power tools to cut and sand products molded from BMMA-5353 and similar products in the manner evaluated in this study, airborne asbestos concentrations should not exceed current or historical occupational exposure limits.

  19. Evaluation of biodiesel’s impact on real-world occupational and environmental particulate matter exposures at a municipal facility in Keene, NH

    PubMed Central

    Thelen, Brett Amy; Ingalls, Jaime Kathryn; Treadwell, Melinda Dawn

    2016-01-01

    Many organizations are interested in biodiesel as a renewable, domestic energy source for use in transportation and heavy-duty equipment. Although numerous biodiesel emission studies exist, biodiesel exposure studies are nearly absent from the literature. This study compared the impact of petroleum diesel fuel and a B20 blend (20% soy-based biodiesel/80% petroleum diesel) on occupational and environmental exposures at a rural municipal facility in Keene, NH. For each fuel type, we measured concentrations of fine particulate matter (PM2.5), elemental carbon (EC), and organic carbon (OC) at multiple locations (in-cabin, work area, and near-field) at a materials recovery facility utilizing non-road equipment. B20 fuel use resulted in significant reductions in PM2.5 mass (56–76%), reductions in EC (5–29%), and increases in OC (294–467%). Concentrations of PM2.5 measured during petroleum diesel use were up to four times higher than PM2.5 concentrations during B20 use. Further analysis of the EC and OC fractions of total carbon also indicated substantial differences between fuels. Our results demonstrate that biodiesel blends significantly reduced PM2.5 exposure compared to petroleum diesel fuel in a workplace utilizing non-road construction-type equipment. While this suggests that biodiesel may reduce health risks associated with exposure to fine particulate matter mass, more exposure research is needed to better understand biodiesel-related changes in particulate matter composition and other exposure metrics.

  20. Quadriceps intramuscular fat fraction rather than muscle size is associated with knee osteoarthritis

    PubMed Central

    Kumar, Deepak; Karampinos, Dimitrios C.; MacLeod, Toran D.; Lin, Wilson; Nardo, Lorenzo; Li, Xiaojuan; Link, Thomas M; Majumdar, Sharmila; Souza, Richard B

    2014-01-01

    Objectives To compare thigh muscle intramuscular fat (intraMF) fractions and area between people with and without knee radiographic osteoarthritis (ROA); and to evaluate the relationships of quadriceps adiposity and area with strength, function and knee MRI lesions. Methods Ninety six subjects (ROA: KL >1; n = 30, control: KL = 0,1; n = 66) underwent 3-Tesla MRI of the thigh muscles using chemical shift-based water/fat MR imaging (fat fractions) and the knee (clinical grading). Subjects were assessed for isometric/isokinetic quadriceps/hamstrings strength, function (KOOS, stair climbing test [SCT], and 6-minute walk test [(6MWT]. Thigh muscle intraMF fractions, muscle area and strength, and function were compared between controls and ROA subjects, adjusting for age. Relationships between measures of muscle fat/area with strength, function, KL and lesion scores were assessed using regression and correlational analyses. Results The ROA group had worse KOOS scores but SCT and 6MWT were not different. The ROA group had greater quadriceps intraMF fraction but not for other muscles. Quadriceps strength was lower in ROA group but the area was not different. Quadriceps intraMF fraction but not area predicted self-reported disability. Aging, worse KL, and cartilage and meniscus lesions were associated with higher quadriceps intraMF fraction. Conclusion Quadriceps intraMF is higher in people with knee OA and is related to symptomatic and structural severity of knee OA, where as the quadriceps area is not. Quadriceps fat fraction from chemical shift-based water/fat MR imaging may have utility as a marker of structural and symptomatic severity of knee OA disease process. PMID:24361743

  1. Development and Evaluation of Vocational Competency Measures. Final Report.

    ERIC Educational Resources Information Center

    Chalupsky, Albert B.; And Others

    A series of occupational competency tests representing all seven vocational education curriculum areas were developed, field tested, and validated. Seventeen occupations were selected for competency test development: agricultural chemicals applications technician, farm equipment mechanic, computer operator, word processing specialist, apparel…

  2. Self-consistent implementation of ensemble density functional theory method for multiple strongly correlated electron pairs

    DOE PAGES

    Filatov, Michael; Liu, Fang; Kim, Kwang S.; ...

    2016-12-22

    Here, the spin-restricted ensemble-referenced Kohn-Sham (REKS) method is based on an ensemble representation of the density and is capable of correctly describing the non-dynamic electron correlation stemming from (near-)degeneracy of several electronic configurations. The existing REKS methodology describes systems with two electrons in two fractionally occupied orbitals. In this work, the REKS methodology is extended to treat systems with four fractionally occupied orbitals accommodating four electrons and self-consistent implementation of the REKS(4,4) method with simultaneous optimization of the orbitals and their fractional occupation numbers is reported. The new method is applied to a number of molecular systems where simultaneous dissociationmore » of several chemical bonds takes place, as well as to the singlet ground states of organic tetraradicals 2,4-didehydrometaxylylene and 1,4,6,9-spiro[4.4]nonatetrayl.« less

  3. Experiences of participation in everyday occupations among persons aging with a tetraplegia.

    PubMed

    Lundström, Ulrica; Lilja, Margareta; Gray, David; Isaksson, Gunilla

    2015-01-01

    This study aimed to gain understanding of participation in everyday occupations through life stories of persons aging with a traumatic spinal cord injury (SCI). A narrative method was used for data collection and a paradigmatic analysis was used to analyze data. The analysis resulted in three themes that illustrate how the participants acted to participate in everyday occupations, how that changed over time, and some concerns about their future. The first theme illustrates how participants following SCI acted to become agents of their lives and participate in everyday occupations. The second theme illustrates how participants had to prioritize participation in meaningful occupations due to personal and environmental factors. The third theme shows how they had to try new strategies to continue participation in occupations, due to secondary health complications related to aging. This study captures how persons aging with tetraplegia acted to participate in everyday occupations from soon after the injury until several decades later. In addition, their ability to act and participate changed over time. Our findings provide knowledge that can guide clinicians in their work within this complex area of rehabilitation. Besides, it can also guide the work with policy recommendations for healthcare and social service systems. Aging with a SCI is a complex daily struggle in order to be able to continue acting and participating in everyday occupations, and thereby this gives implications for a lifelong support. This study provides knowledge that can guide clinicians in their work within this complex area of rehabilitation. Knowledge from this study can guide the work with policy recommendations for healthcare and social service systems.

  4. Is there an occupational therapy employment crisis within Australia? An investigation into two consecutive cohorts of occupational therapy graduates from a single Victorian University identifying trends in employment.

    PubMed

    Fay, Pearse; Adamson, Lynne

    2017-12-01

    Within the context of growing concerns about a potential oversupply of occupational therapist, this research examines when, where and how long new graduates take to gain employment and identifies influences upon the health and university systems. A mixed method research design, using an online survey was adopted to investigate the topic. Two consecutive cohorts of graduates from a single university program were invited to participate. Seventy-five (58%) responses were received, with 63 (84%) currently employed in an occupational therapy role. Of the 12 (16%) not employed, only 3 (4%) described themselves as actively seeking employment in an occupational therapy role. A wide spread of employment settings and scope of practice areas was reported. Findings suggest that occupational therapy graduates are gaining employment in a range of settings and practice areas, relatively quickly. This research adds evidence to the conversation around graduate employment within a region of Australia. The Australian population, health system and university changes are possible factors influencing employment. The research reveals the difficulties in understanding the current situation with limitations in data collected, varied terminology and an ever changing job seeking environment. The research provides a starting point for the occupational therapy profession to further understand the directions the profession is taking. University programs may also benefit by using the research to tailor course content to assist graduates in gaining employment or to present students with the prospects of new employment opportunities. © 2017 Occupational Therapy Australia.

  5. Gender-related aspects in occupational allergies - Secondary publication and update.

    PubMed

    Raulf, Monika; Brüning, Thomas; Jensen-Jarolim, Erika; van Kampen, Vera

    2017-01-01

    For years occupational allergies have been among the most frequently recorded occupational diseases, and both the skin as well as the respiratory tract may be affected. An estimated 9 to 15% of adult asthma is (partially) caused by work-related exposure. Gender-specific differences in exposure cause different risks in the workplace which affect the health of employees. This also applies to exposure and working conditions when handling sensitizing working substances. The presented gender-specific analysis of the German documentation of confirmed occupational respiratory allergic diseases and occupational skin diseases reveals clear differences between men and women in the number of diseases and also in exposure conditions and working areas.

  6. Effectiveness of Occupational Therapy Interventions for Lower-Extremity Musculoskeletal Disorders: A Systematic Review.

    PubMed

    Dorsey, Julie; Bradshaw, Michelle

    Lower-extremity (LE) musculoskeletal disorders (MSDs) can have a major impact on the ability to carry out daily activities. The effectiveness of interventions must be examined to enable occupational therapy practitioners to deliver the most appropriate services. This systematic review examined the literature published between 1995 and July 2014 that investigated the effectiveness of occupational therapy interventions for LE MSDs. Forty-three articles met the criteria and were reviewed. Occupational therapy interventions varied on the basis of population subgroup: hip fracture, LE joint replacement, LE amputation or limb loss, and nonsurgical osteoarthritis and pain. The results indicate an overall strong role for occupational therapy in treating clients with LE MSDs. Activity pacing is an effective intervention for nonsurgical LE MSDs, and multidisciplinary rehabilitation is effective for LE joint replacement and amputation. Further research on specific occupational therapy interventions in this important area is needed. Copyright © 2017 by the American Occupational Therapy Association, Inc.

  7. Work-Related Burn Injuries Hospitalized in US Burn Centers: 2002 to 2011.

    PubMed

    Huang, Zhenna; Friedman, Lee S

    2017-03-01

    To develop a comprehensive definition to identify work-related burns in the National Burn Repository (NBR) based on multiple fields and describes injuries by occupation. The NBR, which is an inpatient dataset, was used to compare type and severity of burn injuries by occupation. Using the definition developed for this analysis, 22,969 burn injuries were identified as work-related. In contrast, the single work-related field intended to capture occupational injuries only captured 4696 cases. The highest numbers of burns were observed in construction/extraction, food preparation, and durable goods production occupations. Occupations with a mean total body surface area (TBSA) burned greater than 10% include transportation and material-moving, architecture and engineering, and arts/design/entertainment/sports/media occupations. The NBR dataset should be further utilized for occupational burn injury investigations and multiple fields should be considered for case ascertainment.

  8. Occupational gender stereotypes: is the ratio of women to men a powerful determinant?

    PubMed

    Adachi, Tomoko

    2013-04-01

    Gendered division of occupational choices still exists in contemporary Japanese society. Women are underrepresented in traditionally male-dominated fields, while few men occupy positions in traditionally female-dominated areas. The purpose of the present study was to examine occupational gender stereotypes and its relation to the female-to-male ratio of jobholders. Participants were 540 Japanese (262 women, 278 men) who participated in an Internet survey. The results showed that the female-to-male ratio of jobholders was a strong predictor of gender stereotyping. That is to say, contemporary Japanese recognized male-dominated occupations as typically masculine and female-dominated ones as typically feminine. Gender comparisons revealed that men rated female-dominated occupations as more feminine in nature than did women, while women rated male-dominated occupations as more masculine than did men. Future implications for career interventions focusing on occupational gender stereotypes were also discussed.

  9. [UV-irradiation-induced skin cancer as a new occupational disease].

    PubMed

    Diepgen, T L; Drexler, H; Elsner, P; Schmitt, J

    2015-03-01

    With the revision of the German Ordinance on Occupational Diseases, skin cancer due to UV irradiation was amended as a new occupational disease to the list of occupational diseases in Germany. The new occupational disease BK 5103 has the following wording: "Squamous cell carcinoma or multiple actinic keratosis of the skin caused by natural UV irradiation". Actinic keratoses are to be considered as multiple according to this new occupational diseases if they occur as single lesions of more than five annually, or are confluent in an area > 4 cm(2) (field cancerization). It is estimated that more than 2.5 million employees are exposed to natural UV irradiation due to their work (outdoor workers) in Germany and therefore have an increased risk of skin cancer. In this article the medical and technical prerequisites which have to be fulfilled for this new occupational disease in Germany are introduced.

  10. Prevention and Early Detection of Occupational Cancers - a View of Information Technology Solutions.

    PubMed

    Davoodi, Somayeh; Safdari, Reza; Ghazisaeidi, Marjan; Mohammadzadeh, Zeinab; Azadmanjir, Zahra

    2015-01-01

    Thousands of people die each year from cancer due to occupational causes. To reduce cancer in workers, preventive strategies should be used in the high-risk workplace. The effective prevention of occupational cancer requires knowledge of carcinogen agents. Like other areas of healthcare industry, occupational health has been affected by information technology solutions to improve prevention, early detection, treatment and finally the efficiency and cost effectiveness of the healthcare system. Information technology solutions are thus an important issue in the healthcare field. Information about occupational cancer in information systems is important for policy makers, managers, physicians, patients and researchers; because examples that include high quality data about occupational cancer patients and occupational cancer causes are able to determine the worker groups which require special attention. As a result exposed workers who are vulnerable can undergo screening and be considered for preventive interventions.

  11. Socioeconomic Inequalities in Hearing Loss in a Healthy Population Sample: The HUNT Study

    PubMed Central

    Krokstad, Steinar; Tambs, Kristian

    2009-01-01

    We assessed socioeconomic position and hearing loss in a Norwegian population of 17 593 men and women aged 30–54 years in 1984–1986 who were followed for 11 years. We used analysis of variance, logistic regression, and population-attributable fraction analyses to examine associations. Significant socioeconomic inequalities in hearing loss were found among men. Adjusted odds ratios for hearing loss were approximately 1.3 to 1.9 for semi- and unskilled manual workers compared with participants with high occupational class; the population-attributable fraction of the prevalence of hearing loss over the cutpoint in the high-frequency (3, 4, 6, and 8 kHz) range was 35%. PMID:19542048

  12. Patch dynamics and the timing of colonization-abandonment events by male Kirtland’s Warblers in an early succession habitat

    USGS Publications Warehouse

    Donner, Deahn M.; Ribic, Christine; Probst, John R.

    2010-01-01

    Habitat colonization and abandonment affects the distribution of a species in space and time, ultimately influencing the duration of time habitat is used and the total area of habitat occupied in any given year. Both aspects have important implications to long-term conservation planning. The importance of patch isolation and area to colonization–extinction events is well studied, but little information exists on how changing regional landscape structure and population dynamics influences the variability in the timing of patch colonization and abandonment events. We used 26 years of Kirtland’s Warbler (Dendroica kirtlandii) population data taken during a habitat restoration program (1979–2004) across its historical breeding range to examine the influence of patch attributes and temporal large-scale processes, specifically the rate of habitat turnover and fraction of occupied patches, on the year-to-year timing of patch colonization and abandonment since patch origin. We found the timing of patch colonization and abandonment was influenced by patch and large-scale regional factors. In this system, larger patches were typically colonized earlier (i.e., at a younger age) and abandoned later than smaller patches. Isolated patches (i.e., patches farther from another occupied patch) were generally colonized later and abandoned earlier. Patch habitat type affected colonization and abandonment; colonization occurred at similar patch ages between plantation and wildfire areas (9 and 8.5 years, respectively), but plantations were abandoned at earlier ages (13.9 years) than wildfire areas (16.4 years) resulting in shorter use. As the fraction of occupied patches increased, patches were colonized and abandoned at earlier ages. Patches were abandoned at older ages when the influx of new habitat patches was at low and high rates. Our results provide empirical support for the temporal influence of patch dynamics (i.e., patch destruction, creation, and succession) on local colonization and extinction processes that help explain large-scale patterns of habitat occupancy. Results highlight the need for practitioners to consider the timing of habitat restoration as well as total amount and spatial arrangement of habitat to sustain populations.

  13. Intervening to reduce the future burden of occupational cancer in britain: what could work?

    PubMed

    Hutchings, Sally; Cherrie, John W; Van Tongeren, Martie; Rushton, Lesley

    2012-10-01

    In Britain, 14 carcinogenic agents and occupational circumstances currently account for 86% of estimated occupation attributable cancer. The future burden associated with these carcinogens has been forecast, using attributable fractions for forecast scenarios representing patterns of past and predicted future exposure, and exposure levels representing the introduction of new occupational exposure limits, increased levels of compliance with these limits and other reductions in worker exposure. Without intervention, occupational attributable cancers are forecast to remain at more than 10,000 by 2060. With modest intervention over 2,600, or with stricter interventions more than 8,200 cancers could be avoided by 2060 although because of long latency no impact will be seen until at least 10 years after intervention. Effective interventions assessed in this study include reducing workplace exposure limits and improving compliance with these limits. Cancers associated with asbestos, diesel engine exhaust, polycyclic aromatic hydrocarbons, work as a painter, radon, and solar radiation are forecast to continue, with construction remaining the prime industry of concern. Although exposure levels to the established carcinogens are falling, workers are remaining exposed at low levels at which there is still a cancer risk, although the aging population also contributes to rising cancer numbers, These forecasts can be used to assess the relative costs to society of different occupational carcinogenic agents, and the relative merits and savings associated with alternative intervention strategies. The methods are adaptable for different data circumstances, other types of interventions and could be extended to environmental carcinogens and other chronic diseases.

  14. Effect of occupational exposure to vapors, gases, dusts, and fumes on COPD mortality risk among Swedish construction workers: a longitudinal cohort study.

    PubMed

    Torén, Kjell; Järvholm, Bengt

    2014-05-01

    The aim of the present study was to elucidate whether occupational exposure to vapors, gases, dusts, and fumes increases the mortality risk of COPD, especially among never smokers. The study population was a cohort of 354,718 male construction workers; of these, 196,329 were exposed to vapors, gases, dusts, and fumes, and 117,964 were unexposed. Exposure to inorganic dust, wood dust, vapors, fumes, gases, and irritants was based on a job-exposure matrix with a focus on exposure in the mid-1970s. The cohort was followed from 1971 to 2011. Relative risks (RRs) were obtained using Poisson regression models adjusting for age, BMI, and smoking habits. There were 1,085 deaths from COPD among the exposed workers, including 49 never smokers. Workers with any occupational exposure to vapors, gases, fumes, and dust showed an increased mortality due to COPD (RR, 1.32; 95% CI, 1.18-1.47). When comparing different exposure groups, there was a significantly increased mortality due to COPD among those exposed to fumes (RR, 1.20; 95% CI, 1.07-1.36) and inorganic dust (RR, 1.19; 95% CI ,1.07-1.33). Among never smokers, there was high mortality due to COPD among workers with any occupational airborne exposure (RR, 2.11; 95% CI, 1.17-3.83). The fraction of COPD attributable to occupational exposure was 0.24 among all workers and 0.53 among never-smoking workers. Occupational exposure to airborne pollution increases the mortality risk for COPD, especially among never smokers.

  15. The Geographic Concentration of Enterprise in Developing Countries

    PubMed Central

    Felkner, John S.; Townsend, Robert M.

    2011-01-01

    A nation’s economic geography can have an enormous impact on its development. In Thailand, we show that a high concentration of enterprise in an area predicts high subsequent growth in and around that area. We also find spatially contiguous convergence of enterprise with stagnant areas left behind. Exogenous physiographic conditions are correlated with enterprise location and growth. We fit a structural, micro-founded model of occupation transitions with fine-tuned geographic capabilities to village data and replicate these salient facts. Key elements of the model include costs, credit constraints on occupation choice, and spatially varying expansion of financial service providers. PMID:22844158

  16. Specific surface area of a crushed welded tuff before and after aqueous dissolution

    USGS Publications Warehouse

    Reddy, M.M.; Claassen, H.C.

    1994-01-01

    Specific surface areas were measured for several reference minerals (anorthoclase, labradorite and augite), welded tuff and stream sediments from Snowshoe Mountain, near Creede, Colorado. Crushed and sieved tuff had an unexpectedly small variation in specific surface area over a range of size fractions. Replicate surface area measurements of the largest and smallest tuff particle size fractions examined (1-0.3 mm and <0.212 mm) were 2.3 ?? 0.2 m2/g for each size fraction. Reference minerals prepared in the same way as the tuff had smaller specific surface areas than that of the tuff of the same size fraction. Higher than expected tuff specific surface areas appear to be due to porous matrix. Tuff, reacted in solutions with pH values from 2 to 6, had little change in specific surface area in comparison with unreacted tuff. Tuff, reacted with solutions having high acid concentrations (0.1 M hydrochloric acid or sulfuric-hydrofluoric acid), exhibited a marked increase in specific surface area compared to unreacted tuff. ?? 1994.

  17. The Prehistory and Paleoenvironment of Hominy Creek Valley. 1979 Field Season,

    DTIC Science & Technology

    1982-01-01

    study of Hiominy Creek Valley (Henry, 1977a:1-5). The program focuses on the definition of adaptive strate- gies throughout the prehistoric occupation...area of the shelter is estimated 75m 2 with approximately one-fifth of this area covered by rockfall . The cellng is generally level with a height...greater rates of deposition than fewer numbers Gi occupants. These open floodplain sites may LW -98- well have represented alternative encampments to the

  18. 75 FR 10545 - Occupational Information Development Advisory Panel Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-08

    ... following areas: Medical and vocational analysis of disability claims; occupational analysis, including... system suited to its disability programs and improve the medical-vocational adjudication policies and... remaining time to deliberate or conduct other Panel business. Those interested in providing testimony in...

  19. 76 FR 21786 - Occupational Information Development Advisory Panel Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-18

    ... following areas: medical and vocational analysis of disability claims; occupational analysis, including... suited to its disability programs and improve the medical-vocational adjudication policies and processes... conduct other business. Those interested in providing testimony in person at the meeting or via...

  20. Reference Lists for HECE Occupational Areas.

    ERIC Educational Resources Information Center

    Texas Education Agency, Austin. Dept. of Occupational Education and Technology.

    The annotated bibliography contains citations to appropriate reference books, pamphlets and audiovisual materials for the following 17 occupations: art and craft aide, bridal consultant, child care aide, clothing assistant, companion to the elderly, consumer aide, dietetic aide, fabric coordinator, fashion coordinator, floral designer, food…

  1. 29 CFR 1952.320 - Description of the plan as initially approved.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... specifically designed to cover the following areas: general industrial safety, construction safety, first aid... Section 1952.320 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH... structure, the Occupational Safety Standards Commission has the responsibility to adopt standards and...

  2. 29 CFR 1952.320 - Description of the plan as initially approved.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... specifically designed to cover the following areas: general industrial safety, construction safety, first aid... Section 1952.320 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH... structure, the Occupational Safety Standards Commission has the responsibility to adopt standards and...

  3. 29 CFR 1952.320 - Description of the plan as initially approved.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... specifically designed to cover the following areas: general industrial safety, construction safety, first aid... Section 1952.320 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH... structure, the Occupational Safety Standards Commission has the responsibility to adopt standards and...

  4. Marketing Occupations. Cluster Guide.

    ERIC Educational Resources Information Center

    Oregon State Dept. of Education, Salem.

    This cluster guide, which is designed to show teachers what specific knowledge and skills qualify high school students for entry-level employment (or postsecondary training) in marketing occupations, is organized into three sections: (1) cluster organization and implementation, (2) instructional emphasis areas, and (3) assessment. The first…

  5. Delivery of health surveillance for hand-arm vibration in the West Midlands.

    PubMed

    Kinoulty, Mary

    2006-01-01

    Concerns about provider competence and quality of hand-arm vibrations (HAVs) health surveillance programmes were identified by Health & Safety Executive (HSE) inspectors. To evaluate health surveillance programmes and compare them with published HSE guidance. To identify deficiencies and areas for improvement in the health surveillance programmes. A proforma was developed for the study and used on a sample of 10 local occupational health providers. All 10 organizations were aware of current HSE guidance for health surveillance for HAVs but only a minority (30%) were following it. Occupational health provider training, written procedures and health surveillance delivery were all identified as areas requiring improvement. The majority of organizations were not following HSE guidance. Occupational health providers undertaking health surveillance for HAV require specific training.

  6. Occupational Skin Diseases in the San Francisco Bay Area

    PubMed Central

    Gellin, Gerald A.; Wolf, C. Richard; Milby, Thomas H.

    1970-01-01

    From answers by one-third of the practicing dermatologists in the San Francisco Bay Area to a questionnaire on occupational skin diseases, contact dermatitis due to irritants and sensitizers was found to rank first. Poison oak, which is the leading reported cause on “Doctor's First Report of Work Injury” received by the California Department of Industrial Relations, was sixth on the list of the survey, trailing solvents, cleansing agents, petroleum products and epoxy resins. A history of atopic dermatitis was often noted in current cases of occupational diseases of the skin. Avoidance of exposure or limiting the contact with pathogenic substances—through engineering changes, observation of working conditions by physicians, education of workers—appeared to be the best preventive measures. PMID:4255687

  7. Anthropogenic Influences on Macro-Level Mammal Occupancy in the Appalachian Trail Corridor

    PubMed Central

    Erb, Peter L.; McShea, William J.; Guralnick, Robert P.

    2012-01-01

    Anthropogenic effects on wildlife are typically assessed at the local level, but it is often difficult to extrapolate to larger spatial extents. Macro-level occupancy studies are one way to assess impacts of multiple disturbance factors that might vary over different geographic extents. Here we assess anthropogenic effects on occupancy and distribution for several mammal species within the Appalachian Trail (AT), a forest corridor that extends across a broad section of the eastern United States. Utilizing camera traps and a large volunteer network of citizen scientists, we were able to sample 447 sites along a 1024 km section of the AT to assess the effects of available habitat, hunting, recreation, and roads on eight mammal species. Occupancy modeling revealed the importance of available forest to all species except opossums (Didelphis virginiana) and coyotes (Canis latrans). Hunting on adjoining lands was the second strongest predictor of occupancy for three mammal species, negatively influencing black bears (Ursus americanus) and bobcats (Lynx rufus), while positively influencing raccoons (Procyon lotor). Modeling also indicated an avoidance of high trail use areas by bears and proclivity towards high use areas by red fox (Vulpes vulpes). Roads had the lowest predictive power on species occupancy within the corridor and were only significant for deer. The occupancy models stress the importance of compounding direct and indirect anthropogenic influences operating at the regional level. Scientists and managers should consider these human impacts and their potential combined influence on wildlife persistence when assessing optimal habitat or considering management actions. PMID:22880038

  8. Anthropogenic influences on macro-level mammal occupancy in the Appalachian Trail corridor.

    PubMed

    Erb, Peter L; McShea, William J; Guralnick, Robert P

    2012-01-01

    Anthropogenic effects on wildlife are typically assessed at the local level, but it is often difficult to extrapolate to larger spatial extents. Macro-level occupancy studies are one way to assess impacts of multiple disturbance factors that might vary over different geographic extents. Here we assess anthropogenic effects on occupancy and distribution for several mammal species within the Appalachian Trail (AT), a forest corridor that extends across a broad section of the eastern United States. Utilizing camera traps and a large volunteer network of citizen scientists, we were able to sample 447 sites along a 1024 km section of the AT to assess the effects of available habitat, hunting, recreation, and roads on eight mammal species. Occupancy modeling revealed the importance of available forest to all species except opossums (Didelphis virginiana) and coyotes (Canis latrans). Hunting on adjoining lands was the second strongest predictor of occupancy for three mammal species, negatively influencing black bears (Ursus americanus) and bobcats (Lynx rufus), while positively influencing raccoons (Procyon lotor). Modeling also indicated an avoidance of high trail use areas by bears and proclivity towards high use areas by red fox (Vulpes vulpes). Roads had the lowest predictive power on species occupancy within the corridor and were only significant for deer. The occupancy models stress the importance of compounding direct and indirect anthropogenic influences operating at the regional level. Scientists and managers should consider these human impacts and their potential combined influence on wildlife persistence when assessing optimal habitat or considering management actions.

  9. Occupational therapy needs of patients with thoracic cancer at the time of diagnosis: findings of a dedicated rehabilitation service.

    PubMed

    Bentley, Rachel; Hussain, Asmah; Maddocks, Matthew; Wilcock, Andrew

    2013-06-01

    Guidelines recommend screening patients with cancer to identify their rehabilitation needs. To help quantify this area of need and associated workload from an occupational therapy perspective in patients with thoracic cancer, we report the experiences of a dedicated rehabilitation service. Consecutive patients were screened soon after diagnosis using items associated with occupational performance in the Sheffield Profile for Assessment and Referral for Care questionnaire. Those reporting predetermined levels of distress underwent a full occupational therapy evaluation; this generated a problem list from which individualised goals and interventions were instigated. Of 540 patients screened, 273 (51 %) reported levels of distress which warranted a full occupational therapy assessment. Of these, 260 (95%) reported a total of 681 problems (median of 4 [2-5] per patient). Mostly these lay within the domain of self care (553, 78%) in the categories of transfers, functional mobility and bathing/showering. A total of 646 goals (median of 2 [1-3] per patient) were formulated, resulting in 652 individual interventions, most frequently the provision of equipment (79%) or advice (32%) and referral to another professional/agency (23%). Patients considered that most goals were achieved (98%) and that the provision of equipment was useful (97%). About half of patients with thoracic cancer screened have occupational therapy needs around the time of diagnosis. Problems are mostly in the area of self-care, with equipment provision the most frequent intervention provided. Future work should examine the efficacy of occupational therapy interventions further.

  10. A Career Guidance Curriculum for Ninth Grade Students. Occupational Cluster Learning Activities. Business-Environmental. Part 1 of 2. Ninth Grade Guidance Project. Project Duration: July 16, 1979, to June 30, 1980.

    ERIC Educational Resources Information Center

    Cape May County Vocational Schools, NJ.

    This first of two parts presents learning activities for four occupational clusters of a ninth-grade cluster program. It contains theory and hands-on activities that explore the occupational requirements and working environment of these areas to help students make intelligent decisions of possible career choices based on levels of interest and…

  11. An Empirical Determination of Tasks Essential to Successful Performance as a Bulk Fertilizer Plant Worker. Determination of a Common Core of Basic Skills in Agribusiness and Natural Resources.

    ERIC Educational Resources Information Center

    Miller, Daniel R.; And Others

    To improve vocational educational programs in agriculture, occupational information on a common core of basic skills within the occupational area of the bulk fertilizer plant worker is presented in the revised task inventory survey. The purpose of the occupational survey was to identify a common core of basic skills which are performed and are…

  12. An Empirical Determination of Tasks Essential to Successful Performance as an Animal Health Assistant. Determination of a Common Core of Basic Skills in Agribusiness and Natural Resources.

    ERIC Educational Resources Information Center

    Cooke, Fred C.; And Others

    To improve vocational educational programs in agriculture, occupational information on a common core of basic skills within the occupational area of the animal health assistant is presented in the revised task inventory survey. The purpose of the occupational survey was to identify a common core of basic skills which are performed and are…

  13. An Empirical Determination of Tasks Essential to Successful Performance as a Swine Farmer. Determination of a Common Core of Basic Skills in Agribusiness and Natural Resources.

    ERIC Educational Resources Information Center

    Byrd, J. Rick; And Others

    To improve vocational educational programs in agriculture, occupational information on a common core of basic skills within the occupational area of the swine farmer is presented in the revised task inventory survey. The purpose of the occupational survey was to identify a common core of basic skills which are performed and are essential for…

  14. An Empirical Determination of Tasks Essential to Successful Performance as a Tree Service Worker. Determination of a Common Core of Basic Skills in Agribusiness and Natural Resources.

    ERIC Educational Resources Information Center

    Waddy, Paul H.; And Others

    To improve vocational educational programs in agriculture, occupational information on a common core of basic skills within the occupational area of the tree service worker is presented in the revised task inventory survey. The purpose of the occupational survey was to identify a common core of basic skills which are performed and are essential…

  15. Occupancy patterns of regionally declining grassland sparrow populations in a forested Pennsylvania landscape

    USGS Publications Warehouse

    Hill, Jason M.; Diefenbach, Duane R.

    2014-01-01

    Organisms can be affected by processes in the surrounding landscape outside the boundary of habitat areas and by local vegetation characteristics. There is substantial interest in understanding how these processes affect populations of grassland birds, which have experienced substantial population declines. Much of our knowledge regarding patterns of occupancy and density stem from prairie systems, whereas relatively little is known regarding how occurrence and abundance of grassland birds vary in reclaimed surface mine grasslands. Using distance sampling and single-season occupancy models, we investigated how the occupancy probability of Grasshopper (Ammodramus savannarum) and Henslow's Sparrows (A. henslowii) on 61 surface mine grasslands (1591 ha) in Pennsylvania changed from 2002 through 2011 in response to landscape, grassland, and local vegetation characteristics . A subset (n = 23; 784 ha) of those grasslands were surveyed in 2002, and we estimated changes in sparrow density and vegetation across 10 years. Grasshopper and Henslow's Sparrow populations declined 72% and 49%, respectively from 2002 to 2011, whereas overall woody vegetation density increased 2.6 fold. Henslow's Sparrows avoided grasslands with perimeter–area ratios ≥0.141 km/ha and woody shrub densities ≥0.04 shrubs/m2. Both species occupied grasslands ≤13 ha, but occupancy probability declined with increasing grassland perimeter–area ratio and woody shrub density. Grassland size, proximity to nearest neighboring grassland ( = 0.2 km), and surrounding landscape composition at 0.5, 1.5, and 3.0 km were not parsimonious predictors of occupancy probability for either species. Our results suggest that reclaimed surface mine grasslands, without management intervention, are ephemeral habitats for Grasshopper and Henslow's Sparrows. Given the forecasted decline in surface coal production for Pennsylvania, it is likely that both species will continue to decline in our study region for the foreseeable future.

  16. Response of brown-headed cowbirds and three host species to thinning treatments in low-elevation ponderosa pine forests along the northern Colorado Front Range

    USGS Publications Warehouse

    Keeley, W.H.; Germaine, Stephen S.; Stanley, Thomas R.; Spaulding, Sarah A.; Wanner, C.E.

    2013-01-01

    Thinning ponderosa pine (Pinus ponderosa) forests to achieve desired ecological conditions remains a priority in the North American west. In addition to reducing the risk of high-severity wildfires in unwanted areas, stand thinning may increase wildlife and plant diversity and provide increased opportunity for seedling recruitment. We initiated conservative (i.e. minimal removal of trees) ponderosa stand thinning treatments with the goals of reducing fire risk and improving habitat conditions for native wildlife and flora. We then compared site occupancy of brown-headed cowbirds (Molothrus ater), chipping sparrows (Spizella passerina), plumbeous vireos (Vireo plumbeus), and western wood-pewees (Contopus sordidulus) in thinned and unthinned (i.e., control) forest stands from 2007 to 2009. Survey stations located in thinned stands had 64% fewer trees/ha, 25% less canopy cover, and 23% less basal area than stations in control stands. Occupancy by all three host species was negatively associated with tree density, suggesting that these species respond favorably to forest thinning treatments in ponderosa pine forests. We also encountered plumbeous vireos more frequently in plots closer to an ecotonal (forest/grassland) edge, an association that may increase their susceptibility to edge-specialist, brood parasites like brown-headed cowbirds. Occupancy of brown-headed cowbirds was not related to forest metrics but was related to occupancy by plumbeous vireos and the other host species in aggregate, supporting previous reports on the affiliation between these species. Forest management practices that promote heterogeneity in forest stand structure may benefit songbird populations in our area, but these treatments may also confer costs associated with increased cowbird occupancy. Further research is required to understand more on the complex relationships between occupancy of cowbirds and host species, and between cowbird occupancy and realized rates of nest parasitism.

  17. Using areas of known occupancy to identify sources of variation in detection probability of raptors: taking time lowers replication effort for surveys.

    PubMed

    Murn, Campbell; Holloway, Graham J

    2016-10-01

    Species occurring at low density can be difficult to detect and if not properly accounted for, imperfect detection will lead to inaccurate estimates of occupancy. Understanding sources of variation in detection probability and how they can be managed is a key part of monitoring. We used sightings data of a low-density and elusive raptor (white-headed vulture Trigonoceps occipitalis ) in areas of known occupancy (breeding territories) in a likelihood-based modelling approach to calculate detection probability and the factors affecting it. Because occupancy was known a priori to be 100%, we fixed the model occupancy parameter to 1.0 and focused on identifying sources of variation in detection probability. Using detection histories from 359 territory visits, we assessed nine covariates in 29 candidate models. The model with the highest support indicated that observer speed during a survey, combined with temporal covariates such as time of year and length of time within a territory, had the highest influence on the detection probability. Averaged detection probability was 0.207 (s.e. 0.033) and based on this the mean number of visits required to determine within 95% confidence that white-headed vultures are absent from a breeding area is 13 (95% CI: 9-20). Topographical and habitat covariates contributed little to the best models and had little effect on detection probability. We highlight that low detection probabilities of some species means that emphasizing habitat covariates could lead to spurious results in occupancy models that do not also incorporate temporal components. While variation in detection probability is complex and influenced by effects at both temporal and spatial scales, temporal covariates can and should be controlled as part of robust survey methods. Our results emphasize the importance of accounting for detection probability in occupancy studies, particularly during presence/absence studies for species such as raptors that are widespread and occur at low densities.

  18. Creating a Future for Occupational Health.

    PubMed

    Peckham, Trevor K; Baker, Marissa G; Camp, Janice E; Kaufman, Joel D; Seixas, Noah S

    2017-01-01

    Economic, social, technical, and political drivers are fundamentally changing the nature of work and work environments, with profound implications for the field of occupational health. Nevertheless, researchers and practitioners entering the field are largely being trained to assess and control exposures using approaches developed under old models of work and risks. A speaker series and symposium were organized to broadly explore current challenges and future directions for the occupational health field. Broad themes identified throughout these discussions are characterized and discussed to highlight important future directions of occupational health. Despite the relatively diverse group of presenters and topics addressed, some important cross-cutting themes emerged. Changes in work organization and the resulting insecurity and precarious employment arrangements change the nature of risk to a large fraction of the workforce. Workforce demographics are changing, and economic disparities among working groups are growing. Globalization exacerbates the 'race to the bottom' for cheap labor, poor regulatory oversight, and limited labor rights. Largely, as a result of these phenomena, the historical distinction between work and non-work exposures has become largely artificial and less useful in understanding risks and developing effective public health intervention models. Additional changes related to climate change, governmental and regulatory limitations, and inadequate surveillance systems challenge and frustrate occupational health progress, while new biomedical and information technologies expand the opportunities for understanding and intervening to improve worker health. The ideas and evidences discussed during this project suggest that occupational health training, professional practice, and research evolve towards a more holistic, public health-oriented model of worker health. This will require engagement with a wide network of stakeholders. Research and training portfolios need to be broadened to better align with the current realities of work and health and to prepare practitioners for the changing array of occupational health challenges. © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

  19. Occupational therapy and the treatment of the colles' fracture.

    PubMed

    Naunton, D

    1988-01-01

    Colles' fracture is a frequently occurring injury, particularly in the older population, and well-known to most occupational therapists working in the area of physical dysfunction. The residual deficits associated with this fracture cause major functional problems for the patient and may be avoided by early referral to occupational therapy. Stages of fracture healing will be discussed with recommendations for timely therapeutic intervention. The importance of developing an automatic, early referral system between physicians and occupational therapy departments is stressed, in order to provide thoughtful, preventive, effective treatment to patients with this potentially disabling fracture.

  20. Evaluation of Quantitative Exposure Assessment Method for Nanomaterials in Mixed Dust Environments: Application in Tire Manufacturing Facilities.

    PubMed

    Kreider, Marisa L; Cyrs, William D; Tosiano, Melissa A; Panko, Julie M

    2015-11-01

    Current recommendations for nanomaterial-specific exposure assessment require adaptation in order to be applied to complicated manufacturing settings, where a variety of particle types may contribute to the potential exposure. The purpose of this work was to evaluate a method that would allow for exposure assessment of nanostructured materials by chemical composition and size in a mixed dust setting, using carbon black (CB) and amorphous silica (AS) from tire manufacturing as an example. This method combined air sampling with a low pressure cascade impactor with analysis of elemental composition by size to quantitatively assess potential exposures in the workplace. This method was first pilot-tested in one tire manufacturing facility; air samples were collected with a Dekati Low Pressure Impactor (DLPI) during mixing where either CB or AS were used as the primary filler. Air samples were analyzed via scanning transmission electron microscopy (STEM) coupled with energy dispersive spectroscopy (EDS) to identify what fraction of particles were CB, AS, or 'other'. From this pilot study, it was determined that ~95% of all nanoscale particles were identified as CB or AS. Subsequent samples were collected with the Dekati Electrical Low Pressure Impactor (ELPI) at two tire manufacturing facilities and analyzed using the same methodology to quantify exposure to these materials. This analysis confirmed that CB and AS were the predominant nanoscale particle types in the mixing area at both facilities. Air concentrations of CB and AS ranged from ~8900 to 77600 and 400 to 22200 particles cm(-3), respectively. This method offers the potential to provide quantitative estimates of worker exposure to nanoparticles of specific materials in a mixed dust environment. With pending development of occupational exposure limits for nanomaterials, this methodology will allow occupational health and safety practitioners to estimate worker exposures to specific materials, even in scenarios where many particle types are present. © The Author 2015. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

  1. Estimation of the fractional coverage of rainfall in climate models

    NASA Technical Reports Server (NTRS)

    Eltahir, E. A. B.; Bras, R. L.

    1993-01-01

    The fraction of the grid cell area covered by rainfall, mu, is an essential parameter in descriptions of land surface hydrology in climate models. A simple procedure is presented for estimating this fraction, based on extensive observations of storm areas and rainfall volumes. Storm area and rainfall volume are often linearly related; this relation can be used to compute the storm area from the volume of rainfall simulated by a climate model. A formula is developed for computing mu, which describes the dependence of the fractional coverage of rainfall on the season of the year, the geographical region, rainfall volume, and the spatial and temporal resolution of the model. The new formula is applied in computing mu over the Amazon region. Significant temporal variability in the fractional coverage of rainfall is demonstrated. The implications of this variability for the modeling of land surface hydrology in climate models are discussed.

  2. Geometric confinement influences cellular mechanical properties I -- adhesion area dependence.

    PubMed

    Su, Judith; Jiang, Xingyu; Welsch, Roy; Whitesides, George M; So, Peter T C

    2007-06-01

    Interactions between the cell and the extracellular matrix regulate a variety of cellular properties and functions, including cellular rheology. In the present study of cellular adhesion, area was controlled by confining NIH 3T3 fibroblast cells to circular micropatterned islands of defined size. The shear moduli of cells adhering to islands of well defined geometry, as measured by magnetic microrheometry, was found to have a significantly lower variance than those of cells allowed to spread on unpatterned surfaces. We observe that the area of cellular adhesion influences shear modulus. Rheological measurements further indicate that cellular shear modulus is a biphasic function of cellular adhesion area with stiffness decreasing to a minimum value for intermediate areas of adhesion, and then increasing for cells on larger patterns. We propose a simple hypothesis: that the area of adhesion affects cellular rheological properties by regulating the structure of the actin cytoskeleton. To test this hypothesis, we quantified the volume fraction of polymerized actin in the cytosol by staining with fluorescent phalloidin and imaging using quantitative 3D microscopy. The polymerized actin volume fraction exhibited a similar biphasic dependence on adhesion area. Within the limits of our simplifying hypothesis, our experimental results permit an evaluation of the ability of established, micromechanical models to predict the cellular shear modulus based on polymerized actin volume fraction. We investigated the "tensegrity", "cellular-solids", and "biopolymer physics" models that have, respectively, a linear, quadratic, and 5/2 dependence on polymerized actin volume fraction. All three models predict that a biphasic trend in polymerized actin volume fraction as a function of adhesion area will result in a biphasic behavior in shear modulus. Our data favors a higher-order dependence on polymerized actin volume fraction. Increasingly better experimental agreement is observed for the tensegrity, the cellular solids, and the biopolymer models respectively. Alternatively if we postulate the existence of a critical actin volume fraction below which the shear modulus vanishes, the experimental data can be equivalently described by a model with an almost linear dependence on polymerized actin volume fraction; this observation supports a tensegrity model with a critical actin volume fraction.

  3. [Prenatal screening of cytomegalovirus in France: an increasing frequency practices of screening from 2000 to 2003 despite no recommendation in favor].

    PubMed

    Moty-Monnereau, C; Leroy, V; Deligne, J; Latapy, C; Rumeau-Pichon, C; Blum-Boisgard, C; Flori, Y-A; Salamon, R

    2005-12-01

    Screening cytomegalovirus infection in pregnant women is still controversial in 2004 in France. In this context, we evaluated the interest of such a screening in 2004 in France. This paper was designed to describe trends in CMV prenatal screening practices in 2000-2003 in France. This retrospective study, describes the prescription of CMV screening in HIV-negative pregnant women giving birth in the private care sector, according to their occupational category and geographical area. Data were provided by the "Caisse d'Assurance-maladie des Travailleurs Indépendants" (independent workers health insurance fund). The study included 34.347 women, delivering in 2001-2004 (beginning of pregnancy in 2000-2003). The number of pregnant women screened for CMV increased significantly between 2000 (5.8%, 301/5.177), 2001 (11.1%, 1.130/10.139) and 2002 (22.1%, 2.701/12.223), (p<0.001), then was stable in 2003 (22.0%, 1.496/6.808). The percentage of women screened for CMV, at least once during pregnancy, doubled between 2001 and 2002 (p<0.001) in each occupational category and geographical area. It was significantly different between occupational categories (p<0.01), with a higher percentage of women in the self-employed and commercial agent occupational categories than in the craftsman category. There was also a significant difference between geographical areas (p<0.001), with a higher rate in Paris. This study providing baseline information on CMV practices showed: 1- a significant increase in the frequency of CMV screening among pregnant women over the period 2000-2002 with a stabilization in 2003; 2- a similar trend observed in each occupation category and geographical area but with a markedly higher frequency of screening practices in the Paris area and among self-employed women. A study measuring the effect of the 2004 ANAES recommendation suggesting not to screen for CMV during pregnancy should be conducted.

  4. Epidemiology of peptic ulcer disease in Wuhan area of China from 1997 to 2002

    PubMed Central

    Dong, Wei-Guo; Cheng, Chun-Sheng; Liu, Shao-Ping; Yu, Jie-Ping

    2004-01-01

    AIM: To describe the epidemiological features of peptic ulcer disease in Wuhan area during 1997-2002, to analyze the sex, age and occupation characteristics, as well as the geographic distribution of peptic ulcer disease, and to determine the effective methods of preventing and controlling peptic ulcer disease. METHODS: In the early 1980s, the peptic ulcer disease registry system was established to collect the data of peptic ulcer disease in Wuhan area. Here we performed a statistically detailed analysis of 4876 cases of peptic ulcer disease during 1997-2002. RESULTS: The morbidity of peptic ulcer disease between males and females was significantly different (χ2 = 337.9, P < 0.001). The majority of peptic ulcer diseases were found at the age of 20 to 50 years. Because of different occupations, the incidence of peptic ulcer disease was different in different areas. CONCLUSION: The incidence of peptic ulcer disease is highly associated with sex, age, occupation and geographic environmental factors. By analyzing the epidemiological features of peptic ulcer disease, we can provide the scientific data for prevention and control of peptic ulcer disease. PMID:15484323

  5. Evaluation of a nationally funded state-based programme to reduce fatal occupational injuries

    PubMed Central

    Menendez, Cammie Chaumont; Castillo, Dawn; Rosenman, Kenneth; Harrison, Robert; Hendricks, Scott

    2015-01-01

    Background The Fatality Assessment and Control Evaluation (FACE) programme was established by the National Institute for Occupational Safety and Health to help prevent occupational traumatic fatalities by funding states to conduct targeted fatality investigations within cause-specific focus areas and associated prevention efforts. Purpose To investigate the impact of the state-based FACE programme on two previous focus areas. Methods A longitudinal time-series analysis spanning 22 years compared state fatality rates for occupational falls and electrocutions before and after FACE programme funding with states not receiving FACE programme funding. Lag periods were utilised to allow time for the programme to have an effect, and rates were adjusted for a variety of covariates. Separate analyses were conducted for each injury outcome. Results A reduction in fall fatality rates that was of borderline significance (1-year lag adjRR=0.92 (0.84 to 1.00)) and a non-significant reduction in electrocution fatality rates (3-year lag adjRR=0.92 (0.82 to 1.03)) were observed in states with FACE programme funding, Best-fit models presented two separate lag periods. Conclusions While it is challenging to quantitatively evaluate effectiveness of programmes such as FACE, the data suggest the FACE programme may be effective in preventing occupational injury deaths within its outcome focus areas throughout the state. It is important to look for ways to measure intermediate effects more precisely, as well as ways to maintain effects over time. PMID:22864251

  6. Occupational therapy practice in predriving assessment post stroke in the Irish context: findings from a nominal group technique meeting.

    PubMed

    Stapleton, Tadhg; Connelly, Deirdre

    2010-01-01

    Practice in the area of predriving assessment for people with stroke varies, and research findings are not always easily transferred into the clinical setting, particularly when such assessment is not conducted within a dedicated driver assessment programme. This article explores the clinical predriving assessment practices and recommendations of a group of Irish occupational therapists for people with stroke. A consensus meeting of occupational therapists was facilitated using a nominal group technique (NGT) to identify specific components of cognition, perception, and executive function that may influence fitness to return to driving and should be assessed prior to referral for on-road evaluation. Standardised assessments for use in predriving assessment were recommended. Thirteen occupational therapists speed of processing; perceptual components of spatial awareness, depth perception, and visual inattention; and executive components of planning, problem solving, judgment, and self-awareness. Consensus emerged for the use of the following standardised tests: Behavioural Assessment of Dysexecutive Syndrome (BADS), Test of Everyday Attention (TEA), Brain Injury Visual Assessment Battery for Adults (biVABA), Rivermead Perceptual Assessment Battery (RPAB), and Motor Free Visual Perceptual Test (MVPT). Tests were recommended that gave an indication of the patient's underlying component skills in the area of cognition, perception, and executive functions considered important for driving. Further research is needed in this area to develop clinical practice guidelines for occupational therapists for the assessment of fitness to return to driving after stroke.

  7. Spatial occupancy models applied to atlas data show Southern Ground Hornbills strongly depend on protected areas.

    PubMed

    Broms, Kristin M; Johnson, Devin S; Altwegg, Res; Conquest, Loveday L

    2014-03-01

    Determining the range of a species and exploring species--habitat associations are central questions in ecology and can be answered by analyzing presence--absence data. Often, both the sampling of sites and the desired area of inference involve neighboring sites; thus, positive spatial autocorrelation between these sites is expected. Using survey data for the Southern Ground Hornbill (Bucorvus leadbeateri) from the Southern African Bird Atlas Project, we compared advantages and disadvantages of three increasingly complex models for species occupancy: an occupancy model that accounted for nondetection but assumed all sites were independent, and two spatial occupancy models that accounted for both nondetection and spatial autocorrelation. We modeled the spatial autocorrelation with an intrinsic conditional autoregressive (ICAR) model and with a restricted spatial regression (RSR) model. Both spatial models can readily be applied to any other gridded, presence--absence data set using a newly introduced R package. The RSR model provided the best inference and was able to capture small-scale variation that the other models did not. It showed that ground hornbills are strongly dependent on protected areas in the north of their South African range, but less so further south. The ICAR models did not capture any spatial autocorrelation in the data, and they took an order, of magnitude longer than the RSR models to run. Thus, the RSR occupancy model appears to be an attractive choice for modeling occurrences at large spatial domains, while accounting for imperfect detection and spatial autocorrelation.

  8. Instructional Analysis for Health Occupations.

    ERIC Educational Resources Information Center

    East Texas State Univ., Commerce. Occupational Curriculum Lab.

    This instructional analysis centers on identifying the skills, related knowledge, teacher activities, and student activities that are central to teaching various topics included in the core curriculum for health occupations courses. Addressed in the volume are the following instructional areas: first aid; medical terminology; medical asepsis;…

  9. Sensing for HOV/HOT lanes enforcement : final report.

    DOT National Transportation Integrated Search

    2017-02-01

    The use and creation of combined high-occupancy vehicle/high-occupancy toll (HOV/HOT Lanes) have become : more common in urban areas since all types of road users can take advantage of the lane either as a highoccupancy : vehicle or opting in to pay ...

  10. 76 FR 53993 - Occupational Information Development Advisory Panel Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-30

    ... disability programs in the following areas: Medical and vocational analysis of disability claims... occupational information system suited to its disability programs and improve the medical-vocational... deliberate or conduct other business. Those interested in providing testimony in person at the meeting or via...

  11. Occupational Needs Assessment.

    ERIC Educational Resources Information Center

    Stewart, Betsy

    In order to determine community needs and preferences with regard to vocational education, the Cerritos Community College District surveyed 1,386 Cerritos College students, 896 students in area adult schools, 126 participants in regional occupational programs, and 258 community residents. A 46-item questionnaire focused on: (1) preferences for…

  12. Aspergers--different, not less: occupational strengths and job interests of individuals with Asperger's Syndrome.

    PubMed

    Lorenz, Timo; Heinitz, Kathrin

    2014-01-01

    Rooted in the neurodiversity approach, this study provides an overview of the strengths and interests of individuals with Asperger's Syndrome. We interviewed 136 individuals with Asperger's Syndrome and 155 neurotypical individuals via an online survey with regards to (a) demography, (b) occupational strengths, (c) general self-efficacy, (d) occupational self-efficacy, and (e) the job interest profile according to Holland. The vocational and educational fields of the individuals with Asperger's in the sample are more diverse than and surpass those classical fields stated in research and biographical literature. The comparison of both groups in cross-tables showed that the indicated strengths differ in several areas (ΦCramer = .02-.47), which means that a specific strength profile can be derived, and this profile goes beyond the clinical view of the diagnostic criteria. Individuals with Asperger's indicate lower self-efficacy, both general and occupational. Furthermore, a high concentration of individuals with Asperger's can be found in the areas I (Investigative) and C (Conventional) of Holland's RIASEC model.

  13. Bladder cancer and occupation: a case-control study in northern Italy.

    PubMed Central

    Porru, S; Aulenti, V; Donato, F; Boffetta, P; Fazioli, R; Cosciani Cunico, S; Alessio, L

    1996-01-01

    OBJECTIVES--A hospital based case-control study was conducted between 1992 and 1993 in the province of Brescia, a highly industrialised area in northern Italy, to evaluate occupational risk factors of bladder cancer. METHODS--The study evaluated 355 histologically confirmed cases of bladder cancer (275 men, 80 women) and 579 controls affected by urological non-neoplastic diseases (397 men, 182 women). Lifetime occupational history, smoking and drinking habits, and sociodemographic characteristics were recorded by means of a structured questionnaire. Odds ratios (ORs) were computed with adjustment for age, smoking, alcohol and coffee consumption, education, and place of residence. RESULTS--A significant (P < 0.05) increase of risk of bladder cancer were found in men for labourers in the construction industry (OR 2.1, 95% confidence interval (95% CI) 1.1-3.9) and for recreational and cultural services (OR 5.0, 95% CI 1.3-18.9). Increased risks, although not significant, were found for various other occupations and industries such as machinery mechanics, metal processers and polishers, blacksmiths, gunsmiths, painters; for transport workers, an increased risk with increasing duration of employment was found. CONCLUSIONS--Occupational exposures seem to contribute to bladder cancer risk in the area under study. PMID:8563860

  14. The power of local action in occupational health: the adoption of local exhaust ventilation in the Chicago tuckpointing trade

    PubMed Central

    2016-01-01

    Background Silica is a pervasive and potentially deadly occupational hazard in construction. The occupational risk posed by silica has long been known, but efforts to use engineering controls to minimize dust generation in tuckpointing operations, a masonry restoration specialty, have been slow. Objectives The objective of this study is to explore how local innovation in occupational safety and health may emerge, absent the establishment of national standards. Method This study uses a case study to explore the adoption of local exhaust ventilation in tuckpointing operations in the Chicago area. Sources of data for this research include interviews with a diverse range of key informants and the review of archival material. Results This case study found local unions, municipal regulators, contractors, and major public users of construction services played a central role in the events and milestones that led to the early adoption of local exhaust ventilation in Chicago. The adoption of local exhaust ventilation technology in Chicago demonstrates the potential for local actors to fill an important void when rulemaking in vital areas of occupational of health impedes effective national regulation. PMID:27362634

  15. Patch-occupancy models indicate human activity as major determinant of forest elephant Loxodonta cyclotis seasonal distribution in an industrial corridor in Gabon

    USGS Publications Warehouse

    Buij, R.; McShea, W.J.; Campbell, P.; Lee, M.E.; Dallmeier, F.; Guimondou, S.; Mackaga, L.; Guisseougou, N.; Mboumba, S.; Hines, J.E.; Nichols, J.D.; Alonso, A.

    2007-01-01

    The importance of human activity and ecological features in influencing African forest elephant ranging behaviour was investigated in the Rabi-Ndogo corridor of the Gamba Complex of Protected Areas in southwest Gabon. Locations in a wide geographical area with a range of environmental variables were selected for patch-occupancy surveys using elephant dung to assess seasonal presence and absence of elephants. Patch-occupancy procedures allowed for covariate modelling evaluating hypotheses for both occupancy in relation to human activity and ecological features, and detection probability in relation to vegetation density. The best fitting models for old and fresh dung data sets indicate that (1) detection probability for elephant dung is negatively related to the relative density of the vegetation, and (2) human activity, such as presence and infrastructure, are more closely associated with elephant distribution patterns than are ecological features, such as the presence of wetlands and preferred fresh fruit. Our findings emphasize the sensitivity of elephants to human disturbance, in this case infrastructure development associated with gas and oil production. Patch-occupancy methodology offers a viable alternative to current transect protocols for monitoring programs with multiple covariates.

  16. Muriel Driver Memorial Lecture 2013: Embracing our role as change agents.

    PubMed

    Finlayson, Marcia L

    2013-10-01

    Given the nature of occupational therapy philosophy and practice, it is not surprising that "change agent" has been identified as one of the seven professional roles that occupational therapists fulfill. This Muriel Driver lecture examines the change agent role, what it means, and what knowledge, skills, and personal qualities are necessary to be effective. Overall, relatively little has been written about the change agent role in the occupational therapy literature. Much of what does exist is implicit and often embedded in related topics, such as advocacy. An examination of literature from outside of occupational therapy uncovered four major themes about this role: (a) Change agents are insightful, reflective, and disciplined; (b) Charnge agents are visionary leaders and mobilizers; (c) Change agents are knowledge integrators and translators; and (d) Change agents are diplomatic interventionists who produce meaningful outcomes. These themes point to several areas of silence in the occupational therapy literature. Overcoming these areas of silence and moving forward will require open, challenging, and scholarly debates; reconsideration of change agent role competencies; and clear messaging that we all have the capacity to be competent and effective change agents regardless of our title or setting.

  17. Comparative study of fractional CO2 laser and fractional CO2 laser-assisted drug delivery of topical steroid and topical vitamin C in macular amyloidosis.

    PubMed

    Sobhi, Rehab Mohamed; Sharaoui, Iman; El Nabarawy, Eman Ahmad; El Nemr Esmail, Reham Shehab; Hegazy, Rehab Aly; Aref, Dina Hesham Fouad

    2018-05-01

    Macular amyloidosis (MA) represents a common variant of primary localized cutaneous amyloidosis. It has a characteristic female predominance; none of the treatment modalities described is either curative or uniformly effective in patients with macular amyloidosis. To determine the effect of fractional CO 2 laser in macular amyloidosis in comparison to fractional CO 2 laser-assisted drug delivery of topical steroids and topical vitamin C, the study includes 10 female patients with cutaneous macular amyloidosis aged between 20 and 62 years. Patients were treated with four sessions of fractional CO 2 laser with 4 weeks interval. Laser treatments were performed using fractional CO 2 laser with the following parameters (power 18 W, spacing 800 μm, dwell time 600 μs, stacking 3). The lesion is divided into three areas: area 1, treated by fractional laser only; area 2, treated by fractional laser followed by topical corticosteroid application under occlusion for 24 h; and area 3, treated by fractional laser followed by topical vitamin C serum application under occlusion for 24 h. All lesions were examined clinically and histologically before the therapy and 1 month after the end of the therapy to evaluate the degree of improvement. All treated areas show significant decrease in pigmentation score after treatment, significant drop in rippling (P value < 0.016), and improvement of lichenification; as regards the histological improvement, there was a significant decrease of the amyloid amount after treatment. As regards the amyloid amount, results show significant decrease in the amount of amyloid in all of the three treated areas. Area 2 reported the highest decrease in the amyloid amount followed by areas 1 and 3. One patient (10%) was highly satisfied by the treatment, 6 (60%) reported moderate degree of satisfaction, while only 3 (30%) reported mild satisfaction. Minimal complication occurred in the form of post-inflammatory hyperpigmentation in 1 patient. None of the patients suffered pain, ulceration, or infection. Fractional CO 2 alone can be used to improve the texture of macular amyloidosis. If used to assist the delivery of topical steroids and topical vitamin C, improvement can be highly increased.

  18. [Bronchopulmonary diseases features in miners of Kolsky Transpolar area].

    PubMed

    Siurin, S A; Nikanov, A N

    2009-01-01

    Miners engaged into open-cast and underground extraction of copper-nickel ores in Kolsky Transpolar area have chronic bronchitis as a main nosologic entity among chronic bronchopulmonary diseases (19.1% of the workers). Considerably lower (4.0% of the workers) occurrence concerns chronic obstructive lung disease and bronchial asthma, both developed before the occupational involvement (1.3% of the workers). Complex of occupational and nonoccupational risk factors is connected mostly with smoking that increases COLD/CB risk 10.7-15.8-fold.

  19. Suing the doctor: lawsuits by injured workers against the occupational physician.

    PubMed

    Postol, L P

    1989-11-01

    Occupational physicians are beginning to learn that they, like other physicians, can be targets for lawsuits. This article attempts to outline the relationship between the workers' compensation system and occupational physicians' personal liability. Consideration is given to potential liability due to malpractice, negligent interference with a workers' contractual relationship with his or her employer, libel and slander, and unauthorized release of information. The requirements of the Occupational Health and Safety Administration for medical examinations and recordkeeping are also highlighted. Finally, the need to clarify the relationship between the doctor, patient/worker, and employer is analyzed. Once the occupational physician recognizes the areas for liability, he or she can take practical steps to minimize his or her exposure.

  20. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogatemore » measures for human occupancy and activity in the patient rooms using both indoor air CO₂ concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ~8×10⁶ data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections.« less

  1. Testing the role of patch openness as a causal mechanism for apparent area sensitivity in a grassland specialist.

    PubMed

    Keyel, Alexander C; Bauer, Carolyn M; Lattin, Christine R; Romero, L Michael; Reed, J Michael

    2012-06-01

    Area sensitivity, species being disproportionately present on larger habitat patches, has been identified in many taxa. We propose that some apparently area-sensitive species are actually responding to how open a habitat patch is, rather than to patch size. We tested this hypothesis for Bobolinks (Dolichonyx oryzivorus) by comparing density and occupancy to a novel openness index, patch area, and edge effects. Bobolink density and occupancy showed significant relationships with openness, but logistic models based on an openness occupancy threshold had greater explanatory power. Thresholds remained approximately consistent from June through August, and shifted to be more open in September. Variance partitioning supported the openness index as unique and relevant. We found no relationships between measures of body condition (body mass, body size, circulating corticosterone levels) and either openness or area. Our findings have implications for studies of area sensitivity, especially with regards to inconsistencies reported within species: specifically, (1) whether or not a study finds a species to be area sensitive may depend on whether small, open sites were sampled, and (2) area regressions were sensitive to observed densities at the largest sites, suggesting that variation in these fields could lead to inconsistent area sensitivity responses. Responses to openness may be a consequence of habitat selection mediated by predator effects. Finally, openness measures may have applications for predicting effects of habitat management or development, such as adding wind turbines, in open habitat.

  2. Occupational fall injuries presenting to the emergency department.

    PubMed

    Son, Hyung Min; Kim, Sun Hyu; Shin, Sang Do; Ryoo, Hyun Wook; Ryu, Hyun Ho; Lee, Ji Ho

    2014-04-01

    This study was performed to evaluate occupational and fall injuries presenting to the ED, the risk factors associated with falls among all occupational injuries, and factors affecting prognosis. Data from ED-based Occupational Injury Surveillance System were analysed to investigate the occupational injuries. The 2147 occupational injury subjects were divided into two groups: fall (n = 213, 9.9%) and non-fall (n = 1934, 90.1%). Data including baseline and clinical characteristics were compared between the groups. The mean age was older in the fall group (46 vs 42 years old). The rate of construction site-related injury was 32% in the fall group and only 8% in the non-fall group. Injury occurrence during regular working hours (09.00 hours to 18.00 hours) was 70% in the fall group and 57% in the non-fall group. Injury severity using the Excess Mortality Ratio-adjusted Injury Severity Score (EMR-ISS) was more severe in the fall group than in the non-fall group, and days away from work were longer in the fall group than the non-fall group. Older age, compared with an age <29 years old and presence in a construction area during regular working hours were factors associated with fall injuries. Factors affecting prolonged absence for work were older age, higher EMR-ISS, fall injury and poor workplace environmental conditions. Risk factors associated with fall-related occupational injuries include older age and being at a construction area during regular working hours. Falls among occupational injuries are more severe than other injuries and result in longer work loss. © 2014 Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

  3. Methods for estimating properties of hydrocarbons comprising asphaltenes based on their solubility

    DOEpatents

    Schabron, John F.; Rovani, Jr., Joseph F.

    2016-10-04

    Disclosed herein is a method of estimating a property of a hydrocarbon comprising the steps of: preparing a liquid sample of a hydrocarbon, the hydrocarbon having asphaltene fractions therein; precipitating at least some of the asphaltenes of a hydrocarbon from the liquid sample with one or more precipitants in a chromatographic column; dissolving at least two of the different asphaltene fractions from the precipitated asphaltenes during a successive dissolution protocol; eluting the at least two different dissolved asphaltene fractions from the chromatographic column; monitoring the amount of the fractions eluted from the chromatographic column; using detected signals to calculate a percentage of a peak area for a first of the asphaltene fractions and a peak area for a second of the asphaltene fractions relative to the total peak areas, to determine a parameter that relates to the property of the hydrocarbon; and estimating the property of the hydrocarbon.

  4. Infinite occupation number basis of bosons: Solving a numerical challenge

    NASA Astrophysics Data System (ADS)

    Geißler, Andreas; Hofstetter, Walter

    2017-06-01

    In any bosonic lattice system, which is not dominated by local interactions and thus "frozen" in a Mott-type state, numerical methods have to cope with the infinite size of the corresponding Hilbert space even for finite lattice sizes. While it is common practice to restrict the local occupation number basis to Nc lowest occupied states, the presence of a finite condensate fraction requires the complete number basis for an exact representation of the many-body ground state. In this work we present a truncation scheme to account for contributions from higher number states. By simply adding a single coherent-tail state to this common truncation, we demonstrate increased numerical accuracy and the possible increase in numerical efficiency of this method for the Gutzwiller variational wave function and within dynamical mean-field theory.

  5. A Career Guidance Curriculum for Ninth Grade Students. Occupational Cluster Learning Activities. Health-Technical. Part 2 of 2. Ninth Grade Career Guidance Project. Project Duration: July 16, 1979, to June 30, 1980.

    ERIC Educational Resources Information Center

    Cape May County Vocational Schools, NJ.

    This second of two parts presents learning activities for four occupational clusters of a ninth-grade cluster program. It contains theory and hands-on activities that explore the occupational requirements and working environment of these areas to help students make intelligent decisions of possible career choices based on levels of interest and…

  6. Gender Issues. Trends in the Occupational Distribution of Military Women. Report to the Ranking Minority Member, Subcommittee on Readiness and Management Support, Committee on Armed Services, U.S. Senate.

    ERIC Educational Resources Information Center

    General Accounting Office, Washington, DC. National Security and International Affairs Div.

    Since 1993 and 1994, significant changes in legislation and policy allow women to fly combat aircraft, serve on combat ships, and serve in combat-related occupations. As was the case in the early 1990s, a large percentage of military women continue to work in the areas of health care, administration, personnel, and supply occupations. However,…

  7. Danger zone: Men, masculinity and occupational health and safety in high risk occupations

    PubMed Central

    Stergiou-Kita, Mary; Mansfield, Elizabeth; Bezo, Randy; Colantonio, Angela; Garritano, Enzo; Lafrance, Marc; Lewko, John; Mantis, Steve; Moody, Joel; Power, Nicole; Theberge, Nancy; Westwood, Eleanor; Travers, Krista

    2016-01-01

    The workplace is a key setting where gender issues and organizational structures may influence occupational health and safety practices. The enactment of dominant norms of masculinity in high risk occupations can be particularly problematic, as it exposes men to significant risks for injuries and fatalities. To encourage multi-disciplinary collaborations and advance knowledge in the intersecting areas of gender studies, men’s health, work and workplace health and safety, a national network of thirteen researchers and health and safety stakeholders completed a critical literature review examining the intersection between masculinities and men’s workplace health and safety in order to: (i) account for research previously undertaken in this area; (ii) identify themes that may inform our understanding of masculinity and workplace health and safety and; (iii) identify research and practice gaps in relation to men’s workplace health and safety. In this paper we present key themes from this review. Recommendations are made regarding: (i) how to define gender; (ii) how to attend to and identify how masculinities may influence workers’ identities, perceptions of occupational risks and how institutionalized practices can reinforce norms of masculinity; (iii) the importance of considering how masculinities may intersect with other variables (e.g. historical context, age, class, race, geographical location) and; (iv) the added significance of present-day labour market forces on men’s occupational health and safety. PMID:27239098

  8. Danger zone: Men, masculinity and occupational health and safety in high risk occupations.

    PubMed

    Stergiou-Kita, Mary; Mansfield, Elizabeth; Bezo, Randy; Colantonio, Angela; Garritano, Enzo; Lafrance, Marc; Lewko, John; Mantis, Steve; Moody, Joel; Power, Nicole; Theberge, Nancy; Westwood, Eleanor; Travers, Krista

    2015-12-01

    The workplace is a key setting where gender issues and organizational structures may influence occupational health and safety practices. The enactment of dominant norms of masculinity in high risk occupations can be particularly problematic, as it exposes men to significant risks for injuries and fatalities. To encourage multi-disciplinary collaborations and advance knowledge in the intersecting areas of gender studies, men's health, work and workplace health and safety, a national network of thirteen researchers and health and safety stakeholders completed a critical literature review examining the intersection between masculinities and men's workplace health and safety in order to: (i) account for research previously undertaken in this area; (ii) identify themes that may inform our understanding of masculinity and workplace health and safety and; (iii) identify research and practice gaps in relation to men's workplace health and safety. In this paper we present key themes from this review. Recommendations are made regarding: (i) how to define gender; (ii) how to attend to and identify how masculinities may influence workers' identities, perceptions of occupational risks and how institutionalized practices can reinforce norms of masculinity; (iii) the importance of considering how masculinities may intersect with other variables (e.g. historical context, age, class, race, geographical location) and; (iv) the added significance of present-day labour market forces on men's occupational health and safety.

  9. [Career Awareness Units. Grades K-6.

    ERIC Educational Resources Information Center

    Price, Peggy R.; And Others

    The 13 units outline activities focusing on particular occupations and skills integrated with language arts, mathematics, science, social studies, and other areas. Unit One, for the kindergarten level, contains 11 activities centering on helpers for the home. Unit Two examines restaurant occupations through 10 activities. The six activities in…

  10. Office Occupations Curriculum Course Guide. Postsecondary. 1984 Revision. Bulletin 1665.

    ERIC Educational Resources Information Center

    Louisiana State Dept. of Education, Baton Rouge. Div. of Vocational Education.

    This curriculum course guide lists requirements for the various courses that could be offered in an office occupations program in the postsecondary vocational-technical schools of Louisiana. Descriptions are provided for these curricula: account clerk, administrative/office assistant, secretary/stenographer (including three specialized areas:…

  11. Planning for the Introduction of the Metric System into Occupational Education Programs

    ERIC Educational Resources Information Center

    Low, A. W.

    1974-01-01

    A three-dimensional planning model for introducting the International System of Metric Units into Canadian occupational education curricula includes employment level, career area, and metric topics. A fourth dimension, time, is considered in four separate phases: familiarization, adoption, conversion, and compulsory usage.

  12. Building Trades 1. Course Outline.

    ERIC Educational Resources Information Center

    Hill, Clair S.

    Intended to assist building trades instructors, this course outline to a prevocational building trades program for junior and senior high school students covers four occupational areas: carpentry, masonry, plumbing, and electricity. Specific notes to the administrator and teacher and the course goals precede the four occupational units. Each unit…

  13. Radiographer.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This document, which is designed for use in developing a tech prep competency profile for the occupation of radiographer, lists technical competencies and competency builders for 18 units pertinent to the health technologies cluster in general as well as those specific to the occupation of radiographer. The following skill areas are covered in the…

  14. Occupational Information Systems and Their Use in Rehabilitation. Revised.

    ERIC Educational Resources Information Center

    Kruger, Reuven

    As our industrial-based economy changes into an information-based economy, information activities will continue to permeate rehabilitation. New technology in this area includes computerized occupational information systems used to aid vocational planning. Such systems include the federal government's Job Service Matching System, the Michigan…

  15. Core IV Materials for Metropolitan Agriculture/Horticulture Programs.

    ERIC Educational Resources Information Center

    Hemp, Paul; And Others

    This core curriculum guide consists of materials for use in presenting a 13-unit vocational agriculture course geared toward high school students living in metropolitan areas. Addressed in the individual units of the course are the following topics: employment in agricultural occupations, supervised occupational experience, leadership in…

  16. The Chicano Worker.

    ERIC Educational Resources Information Center

    Briggs, Vernon M., Jr.; And Others

    The 4.7 million Chicanos in the Southwest in 1970 contributed significantly to the local labor supply; yet, they had substantially smaller incomes and greater unemployment than area Anglos. Although Chicanos have moved steadily from unskilled to skilled labor occupations and have entered white collar occupations, they continue to be employed in…

  17. Cluster Guide. Accounting Occupations.

    ERIC Educational Resources Information Center

    Beaverton School District 48, OR.

    Based on a recent task inventory of key occupations in the accounting cluster taken in the Portland, Oregon, area, this curriculum guide is intended to assist administrators and teachers in the design and implementation of high school accounting cluster programs. The guide is divided into four major sections: program organization and…

  18. Task Analysis Inventories. Series II.

    ERIC Educational Resources Information Center

    Wesson, Carl E.

    This second in a series of task analysis inventories contains checklists of work performed in twenty-two occupations. Each inventory is a comprehensive list of work activities, responsibilities, educational courses, machines, tools, equipment, and work aids used and the products produced or services rendered in a designated occupational area. The…

  19. Jobs in Environment. Job Family Series.

    ERIC Educational Resources Information Center

    Science Research Associates, Inc., Chicago, IL.

    The booklet describes 40 occupations related to the environmental areas of studying the earth, tackling pollution, better food and fewer diseases, developing the land and its uses, and protecting natural resources. For each occupation, duties are outlined and working conditions discussed. Techniques used to complete the illustrations include brief…

  20. Investigation of occupational and environmental causes of respiratory cancers (ICARE): a multicenter, population-based case-control study in France.

    PubMed

    Luce, Danièle; Stücker, Isabelle

    2011-12-14

    Occupational causes of respiratory cancers need to be further investigated: the role of occupational exposures in the aetiology of head and neck cancers remains largely unknown, and there are still substantial uncertainties for a number of suspected lung carcinogens. The main objective of the study is to examine occupational risk factors for lung and head and neck cancers. ICARE is a multi-center, population-based case-control study, which included a group of 2926 lung cancer cases, a group of 2415 head and neck cancer cases, and a common control group of 3555 subjects. Incident cases were identified in collaboration with cancer registries, in 10 geographical areas. The control group was a random sample of the population of these areas, with a distribution by sex and age comparable to that of the cases, and a distribution by socioeconomic status comparable to that of the population. Subjects were interviewed face to face, using a standardized questionnaire collecting particularly information on tobacco and alcohol consumption, residential history and a detailed description of occupational history. Biological samples were also collected from study subjects. The main occupational exposures of interest are asbestos, man-made mineral fibers, formaldehyde, polycyclic aromatic hydrocarbons, chromium and nickel compounds, arsenic, wood dust, textile dust, solvents, strong acids, cutting fluids, silica, diesel fumes, welding fumes. The complete list of exposures of interest includes more than 60 substances. Occupational exposure assessment will use several complementary methods: case-by-case evaluation of exposure by experts; development and use of algorithms to assess exposure from the questionnaires; application of job-exposure matrices. The large number of subjects should allow to uncover exposures associated with moderate increase in risks, and to evaluate risks associated with infrequent or widely dispersed exposures. It will be possible to study joint effects of exposure to different occupational risk factors, to examine the interactions between occupational exposures, tobacco smoking, alcohol drinking, and genetic risk factors, and to estimate the proportion of respiratory cancers attributable to occupational exposures in France. In addition, information on many non-occupational risk factors is available, and the study will provide an excellent framework for numerous studies in various fields.

  1. Early Fractions Learning of 3rd Grade Students in SD Laboratorium Unesa

    ERIC Educational Resources Information Center

    Sari, Elisabet Ayunika Permata; Juniati, Dwi; Patahudin, Sitti Maesuri

    2012-01-01

    Fractions varied meanings is one of the causes of difficulties in learning fractions. These students should be given greater opportunities to explore the meaning of fractions before they learn the relationship between fractions and operations on fractions. Although students shading an area represents a fraction, it does not mean they really…

  2. Occupational exposure to coal tar pitch volatiles, benzo/a/pyrene and dust in tyre production.

    PubMed

    Rogaczewska, T; Ligocka, D

    1994-01-01

    Occupational exposure to coal tar pitch volatiles (CTPVs), benzo/a/pyrene (BaP) and dust was evaluated by means of individual measurements carried out in 80 workers and by stationary measurements on 16 work-posts in two divisions of the tyre producing plant. Dust and coal tar pitch volatiles concentrations in the air were determinated by the gravimetric method, measured, in the case of CPTVs, benzene-soluble fraction (BSF) with ultrasonic extraction. Benzo/a/pyrene analysis was performed using high performance liquid chromato-graphy (HPLC) with a spectrofluorimetric detector. It was found that nearly all personal sampling results for BaP were within the range < 4 divided by 142 ng/m3, except for the exposure of workers employed at weighing the raw materials (3,470-6,060 ng/m3) in the Semiproducts Division. Attention should be paid to the recorded CTPVs concentrations (benzene solubles). About 56% of the Vulcanizing Division workers and about 90% of the Semiproducts Division workers were exposed to these substances at concentrations of over 0.2 mg/m3 (hygienic standard for benzene solubles in USA). Exposure to dust (of high respirable fraction percentage > 90%) which exceeded the admissible value (4 mg/m3) was found mainly only in the workers of the Semiproducts Division at some work-posts.

  3. Performance study of personal inhalable aerosol samplers at ultra-low wind speeds.

    PubMed

    Sleeth, Darrah K; Vincent, James H

    2012-03-01

    The assessment of personal inhalable aerosol samplers in a controlled laboratory setting has not previously been carried out at the ultra-low wind speed conditions that represent most modern workplaces. There is currently some concern about whether the existing inhalable aerosol convention is appropriate at these low wind speeds and an alternative has been suggested. It was therefore important to assess the performance of the most common personal samplers used to collect the inhalable aerosol fraction, especially those that were designed to match the original curve. The experimental set-up involved use of a hybrid ultra-low speed wind tunnel/calm air chamber and a rotating, heating breathing mannequin to measure the inhalable fraction of aerosol exposure. The samplers that were tested included the Institute of Occupational Medicine (IOM), Button, and GSP inhalable samplers as well as the closed-face cassette sampler that has been (and still is) widely used by occupational hygienists in many countries. The results showed that, down to ∼0.2 m s(-1), the samplers matched the current inhalability criterion relatively well but were significantly greater than this at the lowest wind speed tested. Overall, there was a significant effect of wind speed on sampling efficiency, with lower wind speeds clearly associated with an increase in sampling efficiency.

  4. Empirically Optimized Flow Cytometric Immunoassay Validates Ambient Analyte Theory

    PubMed Central

    Parpia, Zaheer A.; Kelso, David M.

    2010-01-01

    Ekins’ ambient analyte theory predicts, counter intuitively, that an immunoassay’s limit of detection can be improved by reducing the amount of capture antibody. In addition, it also anticipates that results should be insensitive to the volume of sample as well as the amount of capture antibody added. The objective of this study is to empirically validate all of the performance characteristics predicted by Ekins’ theory. Flow cytometric analysis was used to detect binding between a fluorescent ligand and capture microparticles since it can directly measure fractional occupancy, the primary response variable in ambient analyte theory. After experimentally determining ambient analyte conditions, comparisons were carried out between ambient and non-ambient assays in terms of their signal strengths, limits of detection, and their sensitivity to variations in reaction volume and number of particles. The critical number of binding sites required for an assay to be in the ambient analyte region was estimated to be 0.1VKd. As predicted, such assays exhibited superior signal/noise levels and limits of detection; and were not affected by variations in sample volume and number of binding sites. When the signal detected measures fractional occupancy, ambient analyte theory is an excellent guide to developing assays with superior performance characteristics. PMID:20152793

  5. 10 CFR 835.1101 - Control of material and equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ....1101 Energy DEPARTMENT OF ENERGY OCCUPATIONAL RADIATION PROTECTION Radioactive Contamination Control... section, material and equipment in contamination areas, high contamination areas, and airborne radioactivity areas shall not be released to a controlled area if: (1) Removable surface contamination levels on...

  6. Vegetation spatial variability and its effect on vegetation indices

    NASA Technical Reports Server (NTRS)

    Ormsby, J. P.; Choudhury, B. J.; Owe, M.

    1987-01-01

    Landsat MSS data were used to simulate low resolution satellite data, such as NOAA AVHRR, to quantify the fractional vegetation cover within a pixel and relate the fractional cover to the normalized difference vegetation index (NDVI) and the simple ratio (SR). The MSS data were converted to radiances from which the NDVI and SR values for the simulated pixels were determined. Each simulated pixel was divided into clusters using an unsupervised classification program. Spatial and spectral analysis provided a means of combining clusters representing similar surface characteristics into vegetated and non-vegetated areas. Analysis showed an average error of 12.7 per cent in determining these areas. NDVI values less than 0.3 represented fractional vegetated areas of 5 per cent or less, while a value of 0.7 or higher represented fractional vegetated areas greater than 80 per cent. Regression analysis showed a strong linear relation between fractional vegetation area and the NDVI and SR values; correlation values were 0.89 and 0.95 respectively. The range of NDVI values calculated from the MSS data agrees well with field studies.

  7. Occupational injuries among pediatric orthopedic surgeons

    PubMed Central

    Alsiddiky, Abdulmonem M.; Alatassi, Raheef; Altamimi, Saad M.; Alqarni, Mahdi M.; Alfayez, Saud M.

    2017-01-01

    Abstract In this cross-sectional study, we surveyed all pediatric orthopedic surgeons in Saudi Arabia using an anonymous electronic questionnaire composed of 23 items to identify the rate of occupational injuries and obtain other relevant information. Thirty-nine participants completed the questionnaire (response rate: 83%). Participants who sustained occupational injuries throughout their careers represented 82.5%. The most injured areas were the hands, eyes, and back by 54.5%, 24.2%, and 15.2%, respectively. Approximately 11.1% were injured while operating on infected patients. Approximately 30.3% reported their injuries to their institution. We concluded that the rate of occupational injuries among pediatric orthopedic surgeons is very high and underreported. PMID:28640103

  8. Role for Occupational Therapy in Community Mental Health: Using Policy to Advance Scholarship of Practice.

    PubMed

    Mahaffey, Lisa; Burson, Kathrine A; Januszewski, Celeste; Pitts, Deborah B; Preissner, Katharine

    2015-01-01

    Occupational therapists must be aware of professional and policy trends. More importantly, occupational therapists must be involved in efforts to influence policy both for the profession and for the people they serve (Bonder, 1987). Using the state of Illinois as an example, this article reviews the policies and initiatives that impact service decisions for persons with psychiatric disabilities as well as the rationale for including occupational therapy in community mental health service provision. Despite challenges in building a workforce of occupational therapists in the mental health system, this article makes the argument that the current climate of emerging policy and litigation combined with the supporting evidence provides the impetus to strengthen mental health as a primary area of practice. Implications for scholarship of practice related to occupational therapy services in community mental health programs for individuals with psychiatric disability are discussed.

  9. Occupational health crossing borders part 2: Comparison of 18 occupational health systems across the globe.

    PubMed

    Radon, Katja; Ehrenstein, Vera; Nowak, Dennis; Bigaignon-Cantineau, Janine; Gonzalez, Maria; Vellore, Arun Dev; Zamora, Veronica Enzina; Gupta, Neeraj; Huang, Lirong; Kandkers, Salamat; Lanza, Ana María Menchú; Garcia, Leila Posenato; Patsis, Keti Stylianos; Rojas, Ana Maria Sanchez; Shoma, Ashraf; Verbeek, Jos

    2010-01-01

    Occupational health and safety (OHS) is considered one of the most important factors for a sustainable development; however, it is often considered a luxury by decision-makers. This article compares OHS systems of 18 countries at different stages of development. In an international summer school, structure of the national OHS system, definition of occupational accidents and diseases, procedures for compensation claims, outcome (expressed as incidence of occupational accidents) and training opportunities were presented. National OHS systems ranged from non-existent to systems implemented almost 200 years ago. Priorities, incidence of occupational accidents and training opportunities varied. Common problems included the lack of OHS service for small enterprises and in rural areas. International training programs like this summer school might enhance the exchange about OHS opportunities around the globe and contribute to improved workers health. (c) 2009 Wiley-Liss, Inc.

  10. Occupational Exposures in the Oil and Gas Extraction Industry: State of the Science and Research Recommendations

    PubMed Central

    Witter, Roxana Z.; Tenney, Liliana; Clark, Suzanne; Newman, Lee S.

    2015-01-01

    The oil and gas extraction industry is rapidly growing due to horizontal drilling and high volume hydraulic fracturing (HVHF). This growth has provided new jobs and economic stimulus. The industry occupational fatality rate is 2.5 times higher than the construction industry and 7 times higher than general industry; however injury rates are lower than the construction industry, suggesting injuries are not being reported. Some workers are exposed to crystalline silica at hazardous levels, above occupational health standards. Other hazards (particulate, benzene, noise, radiation) exist. In this article, we review occupational fatality and injury rate data; discuss research looking at root causes of fatal injuries and hazardous exposures; review interventions aimed at improving occupational health and safety; and discuss information gaps and areas of needed research. We also describe Wyoming efforts to improve occupational safety in this industry, as a case example. PMID:24634090

  11. The complexity of daily occupations in multiple sclerosis.

    PubMed

    Lexell, Eva Månsson; Iwarsson, Susanne; Lexell, Jan

    2006-12-01

    The aims of this study were to describe which self-care, productivity, and leisure occupations individuals with multiple sclerosis (MS) perceive as difficult to perform on admission to rehabilitation and the individuals' own perception of the importance of, performance of, and satisfaction with these occupations. Whether the reported self-care, productivity, and leisure occupations were related to sex, age, disease severity, and living arrangements was also investigated. Forty-seven men and women (mean age 49.4 years) were assessed with the Canadian Occupational Performance Measure (COPM) on admission to rehabilitation. The individuals reported 366 occupations (median 8, range 3-15), which were categorized as self-care (51%), productivity (30%), and leisure (19%). Three COPM subcategories--household management (26%), personal care (21%), and functional mobility (20%)--accounted for two-thirds of the reported occupations. All prioritized occupations (n = 238; (median 5, range 2-7) had high ratings for importance and the ratings for performance and satisfaction were generally low. Men reported significantly more occupations related to self-care than women, but no significant difference between the sexes could be found for productivity and leisure. No significant differences between the occupational areas were found when age, disease severity, or/and living arrangements were included in the analysis. In conclusion, individuals with MS perceive difficulties with occupations related to all aspects of daily life. This underscores the need to use assessment tools that capture the complexity of daily occupations.

  12. Technologies of the '80s: Their Impact on Vocational Agriculture Occupations.

    ERIC Educational Resources Information Center

    Jaffe, J. A., Ed.; And Others

    This report is one of seven that identify major new and emerging technological advances expected to influence major vocational education program areas and to describe the programmatic implications in terms of skill-knowledge requirements, occupations most directly affected, and the anticipated diffusion rate. Chapter 1 considers technology as…

  13. Perceived Stress and Canadian Early Childcare Educators

    ERIC Educational Resources Information Center

    Wagner, Shannon L.; Forer, Barry; Cepeda, Ivan L.; Goelman, Hillel; Maggi, Stefania; D'Angiulli, Amedeo; Wessel, Julie; Hertzman, Clyde; Grunau, Ruth E.

    2013-01-01

    Background: Occupational stress for early childcare educators is an area of apparent understudy in the literature. The present study attempted to address this gap and provide some updated data regarding the experiences of this occupational group. Methods: Early childhood workers across a variety of early childhood education settings (N = 69)…

  14. Jobs in Marine Science. Job Family Series.

    ERIC Educational Resources Information Center

    Science Research Associates, Inc., Chicago, IL.

    The instructional booklet explores various occupations in the job family of marine science. Following a brief introduction to the concept of occupational clusters, the student is given an overall orientation to the general area of oceanography and marine-related careers. A shore research station and the activities of a marine biologist are…

  15. Evaluation of a rural demonstration program to increase seat belt use in the Great Lakes Region.

    DOT National Transportation Integrated Search

    2009-03-01

    Six States in the Great Lakes Region (Region 5) participated in a Rural Demonstration Program to increase seat belt : use in rural areas and among high-risk occupants, such as young males and occupants of pickup trucks. These : efforts, which include...

  16. Health Occupations. Instructional System Development Model for Vermont Area Vocational Centers.

    ERIC Educational Resources Information Center

    The curriculum guide presents a suggested outline for teaching health occupations in secondary schools in Vermont. It consists of a student/teacher curriculum outline for each of the 20 units. It includes a concept statement, the behavioral objective, suggested learning activities, suggested teacher resource needs, and suggested evaluation…

  17. Vocational Instructional Materials for Health Occupations Education Available from Federal Agencies.

    ERIC Educational Resources Information Center

    Northwest Regional Educational Lab., Portland, OR.

    This annotated bibliography lists curriculum materials for health occupations education which were produced by Federal agencies and are appropriate for these subject matter areas: (1) dentistry, (2) medical laboratory technology, (3) nursing, (4) rehabilitation, (5) radiology, (6) opthalmology, (7) environmental health, and (8) mental health…

  18. Relative Contributions of Agricultural Drift, Para-Occupational, and Residential Use Exposure Pathways to House Dust Pesticide Concentrations: Meta-Regression of Published Data

    EPA Science Inventory

    Background: Increased pesticide concentrations in house dust in agricultural areas have been attributed to several exposure pathways, including agricultural drift, para-occupational, and residential use. Objective: To guide future exposure assessment efforts, we quantified rel...

  19. Identification of Tasks in Photo-Offset Lithography Occupations.

    ERIC Educational Resources Information Center

    Iowa State Dept. of Public Instruction, Des Moines. Div. of Career Education.

    The research project was designed to provide data pertaining to performance tasks in specific occupations in various areas of vocational/technical education. The data presented in the document is intended to be used to develop appropriate objectives and curricular content to assist in the preparation of individuals entering the specific…

  20. Free Enterprise in the Office Occupations Education Curriculum.

    ERIC Educational Resources Information Center

    South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

    This booklet presents in eight sections competencies, content areas, learning activities, and resources intended to serve as examples of strategies for incorporating free enterprise education in the office occupations education curriculum. Section 1 includes the rationale for studying free enterprise and describes the format and procedures of this…

  1. Differences in the Vocational Interests of Research and Development Managers versus Technical Specialists.

    ERIC Educational Resources Information Center

    Hill, Raymond E.; Roselle, Pamela F.

    1985-01-01

    Compared the occupational interests of research and development managers (N=110) and technical specialists (N=55). Analysis on the general occupational themes and basic interest scales of the Strong-Campbell Interest Inventory indicated the social, enterprising, and conventional areas predicted managerial group membership, whereas the artistic…

  2. Let's Teach Safety. A Directory of Classroom Resources.

    ERIC Educational Resources Information Center

    American Vocational Association, Arlington, VA.

    Intended for use by vocational education teachers, this directory contains listings of such classroom resources as films, pamphlets, charts, and transparencies useful for teaching safety awareness and safety habits in seven vocational occupation areas. A total of fifty-one resources relating to agricultural occupations are listed. The section on…

  3. MATHEMATICS CLUSTERS IN SELECTED AREAS OF VOCATIONAL EDUCATION, REPORT NUMBER 8.

    ERIC Educational Resources Information Center

    RAHMLOW, HAROLD F.; WINCHELL, LEONARD

    IDENTIFICATIONS WERE MADE OF THE MATHEMATICAL KNOWLEDGES COMMONLY USED IN OCCUPATIONS MOST READILY SUITABLE FOR NONCOLLEGE-BOUND YOUTH. TASK ITEMS FROM QUESTIONNAIRES USED IN OFFICE OCCUPATIONS, GENERAL MERCHANDISING, BUILDING TRADES, ELECTRONICS, FOOD SERVICE, CHILD CARE, AND AGRICULTURE STUDIES WERE EXAMINED FOR MATHEMATICAL KNOWLEDGE CONTENT.…

  4. EARNINGS IN THE MACHINERY INDUSTRIES, MID-1966.

    ERIC Educational Resources Information Center

    BAUER, FREDERICK L.

    RESULTS OF A MID-1966 NATIONWIDE SURVEY BY THE BUREAU OF LABOR STATISTICS SHOWED THAT THE EARNINGS OF PRODUCTION AND RELATED NONELECTRICAL MACHINERY WORKERS IN 21 LARGE OCCUPATIONAL AREAS VARIED BY OCCUPATION, SIZE OF ESTABLISHMENT, AND COMMUNITY, INDUSTRY, LABOR-MANAGEMENT CONTRACT STATUS, AND LOCATION. THE AVERAGE HOURLY WAGE WAS $2.84. HIGHER…

  5. The Articulation of Secondary and Post-Secondary Vocational Education Programs. Workshop Products.

    ERIC Educational Resources Information Center

    Keene State Coll., NH.

    As a result of the cooperative efforts in articulation by secondary/postsecondary instructor teams, six packages representing the occupational areas of child care, culinary arts, electronics, health occupations, power mechanics, and industrial welding were developed. Each package contains the following three components: a series of job titles…

  6. Occupational Therapists' Beliefs and Involvement with Secondary Transition Planning

    ERIC Educational Resources Information Center

    Mankey, Tina A.

    2011-01-01

    The purpose of the study was to investigate the involvement and beliefs toward possible involvement of occupational therapy in one geographical area of the United States in regard to secondary transition planning for students with disabilities. Secondary transition planning is mandated by federal legislature and occurs while the student is…

  7. Charting the Projections: 1996-2006. A Special Issue.

    ERIC Educational Resources Information Center

    Occupational Outlook Quarterly, 1998

    1998-01-01

    Depicts labor force projections between 1996 and 2006 in the following areas: occupational employment, demographic composition of the labor force, economic demand, and employment by industry. Indicates that employment is expected to grow in occupations at all levels of education and training. Predicts that labor force growth will be slower than…

  8. Remembering Alcatraz: Twenty-Five Years After.

    ERIC Educational Resources Information Center

    Johnson, Troy; Nagel, Joane

    1994-01-01

    Describes circumstances that set the stage for the 1969 occupation of Alcatraz Island by American Indians, including federal relocation of thousands of reservation Indians to urban areas, national civil rights and antiwar movements, and growth of urban Indian and Indian college student organizations. Briefly traces events of the occupation. Lists…

  9. Agricultural Machinery 01.0301 for Agribusiness, Natural Resources and Environmental Occupations.

    ERIC Educational Resources Information Center

    Wright, John; And Others

    The document presents unit plans which offer lists of experiences and competencies to be learned in the area of agricultural machinery for agribusiness, natural resources, and environmental occupations. The units include: (1) safety; (2) agricultural service center; (3) component parts--bearings, gears, pulleys, clutches, and others; (4) metal…

  10. Careers in Art. Career Development Project.

    ERIC Educational Resources Information Center

    Gergeceff, Lorraine; Wheeler, Geoffrey

    The 10 activities in the unit on art careers attempt to provide eighth and ninth grade students with opportunities for acquiring occupational information, to help students discover themselves in relation to art careers, and to explore various clusters of careers. The suggested occupational areas are: architecture, product design, cartooning,…

  11. Converting high occupancy vehicle (HOV) lanes to high occupancy toll (HOT) lanes conversions : a guidebook, project fact sheet, January 2008.

    DOT National Transportation Integrated Search

    2008-01-01

    Growing traffic congestion has become an increasingly troublesome issue in urban areas throughout the nation, and state and local agencies are exploring new ways to manage new and existing highway facilities more effectively. Of special interest to t...

  12. 29 CFR 1979.103 - Filing of discrimination complaint.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....103 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION... Occupational Safety and Health Act, 29 U.S.C. 660(c), shall be deemed to be a complaint filed under both AIR21... filing. The complaint should be filed with the OSHA Area Director responsible for enforcement activities...

  13. 29 CFR 1979.103 - Filing of discrimination complaint.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....103 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION... Occupational Safety and Health Act, 29 U.S.C. 660(c), shall be deemed to be a complaint filed under both AIR21... filing. The complaint should be filed with the OSHA Area Director responsible for enforcement activities...

  14. Technologies of the '80s: Their Impact on Technical Occupations.

    ERIC Educational Resources Information Center

    Jaffe, J. A., Ed.; And Others

    This report is one of seven that identify major new and emerging technological advances expected to influence major vocational education program areas and to describe the programmatic implications in terms of skill-knowledge requirements, occupations most directly affected, and the anticipated diffusion rate. Chapter 1 considers technology as…

  15. Army Net Zero Prove Out. Net Zero Waste Best Practices

    DTIC Science & Technology

    2014-11-20

    targeted efforts may be needed in barracks and other areas with significant occupant turn-over. Conventional media (e.g., posters and signage ) can be...significant occupant turn-over. Conventional media (e.g., posters and signage ) can be used, along with innovative ideas and interactive events (e.g

  16. Jobs in Transportation. Job Family Series.

    ERIC Educational Resources Information Center

    Science Research Associates, Inc., Chicago, IL.

    The instructional booklet explores various occupations in the job family of transportation. Following a brief introduction to the concept of occupational clusters, the student is given an overall orientation to the general area of transportation. Chapter 2 describes jobs in water transportation, and chapter 3 deals with rail transportation,…

  17. Occupational Exploration at Ontario Junior High School: 8th Grade.

    ERIC Educational Resources Information Center

    Bates, Gene; And Others

    The document contains 47 activities for Grade 8. The contents include the following areas: questionnaires; work vocabularies; employment seeking procedures--employment ads, application forms, resumes, job interviews, and resume preparation advice; a 24-page unit presenting occupational information in relation to career choice and job application…

  18. Labor Market Assessments: An Essential Data Element for Program Development and Evaluation.

    ERIC Educational Resources Information Center

    Friedel, Janice N.

    The Eastern Iowa Community College District (EICCD) has conducted labor market assessments in 17 occupations related to its programs. These assessments are an integral component of the EICCD program evaluation process. These assessments provide valuable information in the specific occupational areas regarding (1) characteristics of the local…

  19. The Effectiveness of Community-Based Occupational Therapy Education and Functional Training Programs for Older Adults: A Critical Literature Review.

    ERIC Educational Resources Information Center

    Wilkins, Seanne; Jung, Bonny; Wishart, Laurie; Edwards, Mary; Norton, Shelley Gamble

    2003-01-01

    Results of a literature review describing the provision of education and occupational therapy training programs for older adults indicate that programs are effective in three areas: prevention of functional decline and falls, stroke, and rheumatoid arthritis. (Contains 37 references.) (JOW)

  20. Technologies of the '80s: Their Impact on Office Occupations.

    ERIC Educational Resources Information Center

    Jaffe, J. A., Ed.; And Others

    This report is one of seven that identify major new and emerging technological advances expected to influence major vocational education program areas and to describe the programmatic implications in terms of skill-knowledge requirements, occupations most directly affected, and the anticipated diffusion rate. Chapter 1 considers technology as…

  1. Health Occupations Trends and Issues: Issue Paper.

    ERIC Educational Resources Information Center

    Covelli, Nicholas J.; And Others

    A study was conducted to identify the trends occurring within the health service industry and their impact on the providers of health care; determine shifts or emerging occupational areas within health services; and assess local health service providers' staffing patterns and anticipated needs. The study involved meetings with local hospital…

  2. Dental Hygienist.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center on Education and Training for Employment.

    This document, which is designed for use in developing a tech prep competency profile for the occupation of dental hygienist, lists technical competencies and competency builders for 13 units pertinent to the health technologies cluster in general and 9 units specific to the occupation of dental hygienist. The following skill areas are covered in…

  3. Cable T.V.: Boon to Vocational Guidance in Rural Areas.

    ERIC Educational Resources Information Center

    Bliss, James L.; And Others

    Allegany Opportunities is a television series which is designed to assist people who may be unemployed, underemployed, or contemplating entering an occupational field by informing them of opportunities available for work, training, and education and procedures for securing work in rural Allegany County. Emphasis is on those occupations requiring…

  4. Arizona Business Occupations, Competency-Based Curriculum Guide.

    ERIC Educational Resources Information Center

    Jalowsky, Toby D.; And Others

    This competency-based curriculum guide to business occupations was designed to improve the articulation in business education programs among high schools, between high schools and postsecondary institutions, and between schools and the business community in Arizona. The teaching units are to be used to develop skills in areas identified by…

  5. Materials Handling and Structures 01.0302 for Agribusiness, Natural Resources, and Environmental Occupations.

    ERIC Educational Resources Information Center

    Finstad, Dennis; And Others

    The document presents unit plans which offer lists of experiences and competencies to be learned in the area of materials handling and structuring for agribusiness, natural resources, and environmental occupations. The units include: (1) farmstead planning and reorganization; (2) site preparation (contour, terraces, waterways; land measurements…

  6. Training for Jobs

    ERIC Educational Resources Information Center

    Lewis, Anne C.

    2006-01-01

    Surveys show that students persist in wanting occupational classes, and many of the small high schools being created around the country are built on a career theme. However, one neglected area in educational policy is the encouragement of girls to consider nontraditional occupations, ones that would move them up on career ladders providing higher…

  7. Strategies for Learners with Special Needs in Health Occupations.

    ERIC Educational Resources Information Center

    Missouri Univ., Columbia. Missouri LINC.

    This Vocational Instructional Management System (VIMS) module illustrates instructional and cognitive strategies that can be used to teach special needs students vocational competencies in three areas of health occupations: (1) identification of pulse sites; (2) taking a radial pulse; and (3) converting ounces to cubic centimeters (cc). Three…

  8. Challenges and Opportunities for Occupational Epidemiology in the Twenty-first Century.

    PubMed

    Stayner, L T; Collins, J J; Guo, Y L; Heederik, D; Kogevinas, M; Steenland, K; Wesseling, C; Demers, P A

    2017-09-01

    There are many opportunities and challenges for conducting occupational epidemiologic studies today. In this paper, we summarize the discussion of a symposium held at the Epidemiology in Occupational Health (EPICOH) conference, Chicago 2014, on challenges for occupational epidemiology in the twenty-first century. The increasing number of publications and attendance at our conferences suggests that worldwide interest in occupational epidemiology has been growing. There are clearly abundant opportunities for new research in occupational epidemiology. Areas ripe for further work include developing improved methods for exposure assessment, statistical analysis, studying migrant workers and other vulnerable populations, the use of biomarkers, and new hazards. Several major challenges are also discussed such as the rapidly changing nature and location of work, lack of funding, and political/legal conflicts. As long as work exists there will be occupational diseases that demand our attention, and a need for epidemiologic studies designed to characterize these risks and to support the development of preventive strategies. Despite the challenges and given the important past contribution in this field, we are optimistic about the importance and continued vitality of the research field of occupational epidemiology.

  9. The Scope of Practice of Occupational Therapy in U.S. Criminal Justice Settings.

    PubMed

    Muñoz, Jaime P; Moreton, Emily M; Sitterly, Audra M

    2016-09-01

    In the past 40 years, prison populations in the U.S. have nearly quadrupled while funding for rehabilitation, education and other programmes has been cut. Despite accounting for a small fraction of the world's population more than 20% of the worlds incarcerated population is in the U.S. and the rate of recidivism remains alarmingly high. Occupational therapists have the capability to play a significant role in addressing the needs of persons within the criminal justice system. However, the profession has been slow to delineate of the role occupational therapy within criminal justice settings. This study sought to provide a descriptive analysis of current occupational therapy roles and practices within the U.S. criminal justice system. Using survey research methods, the researchers collected data from respondents (N = 45; Response Rate + 51.7%) to establish a baseline of the scope of practices employed by occupational therapists working in the U.S. criminal justice system. U.S. practitioners work within institutional and community based criminal justice settings. Primary practice models, assessments and group interventions were catalogued. Respondents strongly valued the creation of networking to build the professions' presence within criminal justice settings. Occupational therapy in the criminal justice system remains an emerging practice arena. Understanding the current scope of practice in the U.S. and creating a mechanism for collaboration may help increase the depth, breadth and overall growth of the profession's role in these settings. The sampling method does not guarantee a representative sample of the population and is limited to practice within the United States. Survey design may not have allowed for respondents to fully describe their practice experiences. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

  10. Occupancy in continuous habitat

    USGS Publications Warehouse

    Efford, Murray G.; Dawson, Deanna K.

    2012-01-01

    The probability that a site has at least one individual of a species ('occupancy') has come to be widely used as a state variable for animal population monitoring. The available statistical theory for estimation when detection is imperfect applies particularly to habitat patches or islands, although it is also used for arbitrary plots in continuous habitat. The probability that such a plot is occupied depends on plot size and home-range characteristics (size, shape and dispersion) as well as population density. Plot size is critical to the definition of occupancy as a state variable, but clear advice on plot size is missing from the literature on the design of occupancy studies. We describe models for the effects of varying plot size and home-range size on expected occupancy. Temporal, spatial, and species variation in average home-range size is to be expected, but information on home ranges is difficult to retrieve from species presence/absence data collected in occupancy studies. The effect of variable home-range size is negligible when plots are very large (>100 x area of home range), but large plots pose practical problems. At the other extreme, sampling of 'point' plots with cameras or other passive detectors allows the true 'proportion of area occupied' to be estimated. However, this measure equally reflects home-range size and density, and is of doubtful value for population monitoring or cross-species comparisons. Plot size is ill-defined and variable in occupancy studies that detect animals at unknown distances, the commonest example being unlimited-radius point counts of song birds. We also find that plot size is ill-defined in recent treatments of "multi-scale" occupancy; the respective scales are better interpreted as temporal (instantaneous and asymptotic) rather than spatial. Occupancy is an inadequate metric for population monitoring when it is confounded with home-range size or detection distance.

  11. Dividing Fractions Using an Area Model: A Look at In-Service Teachers' Understanding

    ERIC Educational Resources Information Center

    Lamberg, Teruni; Wiest, Lynda R.

    2015-01-01

    The paper reports an investigation into how a group of elementary and middle school teachers collectively attempted to solve and understand a fraction division problem using an area model. Solving the word problem required that teachers determine how many two-thirds fit into three-fourths. The teachers struggled to conceptualise fraction division,…

  12. [An investigation of prevalence of occupational diseases and treatment implementation in migrant workers in Hunan, China].

    PubMed

    Yang, L H; Xiao, Y L; Chen, B L; Tang, H Q; Lvqiu, S J; Xia, G H

    2016-08-20

    Objective: To investigate the prevalence of occupational diseases and treatment implementation in migrant workers in Hunan, China, and to provide a scientific basis for related departments to develop preventive and treatment measures and social security system for migrant workers. Methods: A retrospective investigation was performed in 2015 to collect the information of occupational diseases in migrant workers, and age, type of work, type of occupational disease, and implementation of employment injury insurance for occupation diseases were analyzed. Results: The migrant workers with occupational diseases accounted for 50.43% (11 280/22 368) of all patients with occupational diseases in Hunan, among whom 99.4% (11 212/11 280) were male workers. The mean age of migrant workers with occupational diseases was 55 years. The types of occupational diseases involved 6 categories such as occupational pneumoconiosis and occupational skin diseases, totaling 42 legal occupational diseases; 98.31% of all migrant workers (11 089/11 280) had occupational pneumoconiosis. The main types of work were underground coal miners (62.42%) , heading drivers (29.79%) , and haulage workers (2.20%) in coal mines and non-coal mines. A total of 27.25% migrant workers with occupational diseases (2 072/7 605) enjoyed employment injury insurance, and 20.84% (1 585/7 605) did not receive any medical or life compensations. Conclusion: The occupational diseases in migrant workers in Hunan are mainly pneumoconiosis, and a large proportion of those with occupational diseases do not enjoy implementation of treatment. Coal mines and non-coal mines are the high-risk areas for occupational diseases in migrant workers and should be the focus of prevention and control.

  13. Occupational health, cognitive disorders and occupational neuropsychology

    PubMed Central

    Caixeta, Leonardo; da Silva Júnior, George Martins Ney; Caixeta, Victor de Melo; Reimer, Cláudio Henrique Ribeiro; Azevedo, Paulo Verlaine Borges e

    2012-01-01

    Work can be an important etiologic factor in the genesis of some mental disorders including cognitive disability. Occupational neuropsychology constitutes an intriguing new but neglected area of research and clinical practice which deals with the neurocognitive consequences of the work environment and work habits. Neuropsychological knowledge is fundamental to understand cognitive requirements of work competence. Work can impact sleep patterns and mental energy, which in turn can cause neuropsychological symptoms. This report presents relevant evidence to illustrate the relationship between work and cognitive dysfunction. PMID:29213798

  14. Stomach cancer and occupation in Sweden: 1971–89

    PubMed Central

    Aragones, N; Pollan, M; Gustavsson, P

    2002-01-01

    Objectives: To examine the relation between gastric cancer and occupation among men and women gainfully employed in 1970 in Sweden for the period 1971–89 and, more specifically, to evaluate whether any excess of incidence of gastric cancer had also occurred among the subcohort of people reporting the same occupation in 1960 and 1970. Methods: In both sexes and cohorts, relative risks adjusted for age, period of diagnosis, and geographical risk area were computed for occupational codes specified at one, two, or three level (occupational sector, occupational group, and occupation, respectively). Relative risks were calculated with all other occupations as reference and then, to take socioeconomic status into account, solely other occupations within the same occupational sector were used. Results: Among men, occupations with increased risk included miners and quarrymen, construction and metal processing workers, supporting the possible causative role of dusty environments in stomach cancer. In men, the results also provide support for increased risks among electrical and mechanical engineers, fishermen, petrol station workers, motor vehicle drivers, butchers and meat preparers, dockers, freight handlers, launderers and dry cleaners. Furthermore, it is worth noting interesting results for women, whose occupational risks have been studied less. Excess risks were found for practical nurses, cashiers, bank employees, engineering and electronic industry workers, food industry, housekeeping and cleaning workers. Due to the many occupations studied, several significant associations may be expected by chance. Conclusions: The study is explorative but provides support for the relations suggested previously between occupational exposure to dusty environments and stomach cancer, together with some new high risk occupations which should be further studied. PMID:11983848

  15. The role of occupational participation and environment among Icelandic women with breast cancer: a qualitative study.

    PubMed

    Palmadottir, Gudrun

    2010-12-01

    Breast cancer diagnosis generally causes a disruption of occupational life. The purpose of this study was to explore the role of occupational participation and environment in the perception of health and well-being of Icelandic women with breast cancer. Eighteen women were interviewed using the main areas from the Occupational Performance History Interview as a guideline. An inductive analysis revealed seven categories that were organized under two main headings: occupational participation and environment. The categories were labelled "maintaining control and stability", "experiencing sense of self-worth", "enhancing self development", "access to information", "support and care", "refuge in community", and "rehabilitative opportunities". Through occupational participation the women were able to regain control of life and a sense of competence and development. Information, emotional support, safety, and stimulating environments were crucial in alleviating distress and facilitate satisfactory coping with the cancer experience. The results support that occupational participation in a safe and supportive environment has powerful restorative properties. Rehabilitative and supportive services should be based on a holistic perspective and emphasize the healthy aspects of a women's life. Furthermore, occupational therapists need to widen their approach when working with women with breast cancer and focus on their needs as occupational beings.

  16. eDNAoccupancy: An R package for multi-scale occupancy modeling of environmental DNA data

    USGS Publications Warehouse

    Dorazio, Robert; Erickson, Richard A.

    2017-01-01

    In this article we describe eDNAoccupancy, an R package for fitting Bayesian, multi-scale occupancy models. These models are appropriate for occupancy surveys that include three, nested levels of sampling: primary sample units within a study area, secondary sample units collected from each primary unit, and replicates of each secondary sample unit. This design is commonly used in occupancy surveys of environmental DNA (eDNA). eDNAoccupancy allows users to specify and fit multi-scale occupancy models with or without covariates, to estimate posterior summaries of occurrence and detection probabilities, and to compare different models using Bayesian model-selection criteria. We illustrate these features by analyzing two published data sets: eDNA surveys of a fungal pathogen of amphibians and eDNA surveys of an endangered fish species.

  17. Elemental properties of copper slag and measured airborne exposures at a copper slag processing facility.

    PubMed

    Mugford, Christopher; Gibbs, Jenna L; Boylstein, Randy

    2017-08-01

    In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of abrasives containing >1% silica, giving rise to abrasive substitutes like copper slag. We present results from a National Institute for Occupational Safety and Health industrial hygiene survey at a copper slag processing facility that consisted of the collection of bulk samples for metals and silica; and full-shift area and personal air samples for dust, metals, and respirable silica. Carcinogens, suspect carcinogens, and other toxic elements were detected in all bulk samples, and area and personal air samples. Area air samples identified several areas with elevated levels of inhalable and respirable dust, and respirable silica: quality control check area (236 mg/m 3 inhalable; 10.3 mg/m 3 respirable; 0.430 mg/m 3 silica), inside the screen house (109 mg/m 3 inhalable; 13.8 mg/m 3 respirable; 0.686 mg/m 3 silica), under the conveyor belt leading to the screen house (19.8 mg/m 3 inhalable), and inside a conveyor access shack (11.4 mg/m 3 inhalable; 1.74 mg/m 3 respirable; 0.067 mg/m 3 silica). Overall, personal dust samples were lower than area dust samples and did not exceed published occupational exposure limits. Silica samples collected from a plant hand and a laborer exceeded the American Conference of Governmental Industrial Hygienist Threshold Limit Value of 0.025 µg/m 3 . All workers involved in copper slag processing (n = 5) approached or exceeded the Occupational Safety and Health Administration permissible exposure limit of 10 µg/m 3 for arsenic (range: 9.12-18.0 µg/m 3 ). Personal total dust levels were moderately correlated with personal arsenic levels (R s = 0.70) and personal respirable dust levels were strongly correlated with respirable silica levels (R s = 0.89). We identified multiple areas with elevated levels of dust, respirable silica, and metals that may have implications for personal exposure at other facilities if preventive measures are not taken. To our knowledge, this is the first attempt to characterize exposures associated with copper slag processing. More in-depth air monitoring and health surveillance is needed to understand occupational exposures and health outcomes in this industry.

  18. School-based practice patterns: a survey of occupational therapists in Colorado.

    PubMed

    Spencer, Karen C; Turkett, Amanda; Vaughan, Roberta; Koenig, Sandra

    2006-01-01

    This purpose of this study was to describe school-based occupational therapy practice for kindergarten through twelfth-grade students in Colorado and to examine occupational therapy practice in light of current education policy and published views of best practice. Study data were provided by 105 occupational therapists and occupational therapy assistants who completed a 24-item questionnaire. Occupational therapists carried an average caseload of 43.68 students; most frequently served kindergarten through third-grade students with perceptual or communicative disabilities; and delivered services most often in pullout treatment areas. Practitioners spent most of their work week providing direct services. Remedial or developmental approaches were used 62% of the time and compensatory and educational approaches 37% of the time. Individualized education program goals addressed by occupational therapists were most frequently developed by the occupational therapist and targeted students' sensory or motor impairments. Workshops on autism and sensorimotor intervention techniques were reported as the primary and preferred forms of professional development. The strong majority of reported occupational therapy services contrasted with emerging views of best practice. They were, however, consistent with the Colorado Department of Education's guidelines for "motor specialists" that address occupational therapy, physical therapy, and adaptive physical educators working in schools. Study findings are discussed.

  19. Tutorial for Collecting and Processing Images of Composite Structures to Determine the Fiber Volume Fraction

    NASA Technical Reports Server (NTRS)

    Conklin, Lindsey

    2017-01-01

    Fiber-reinforced composite structures have become more common in aerospace components due to their light weight and structural efficiency. In general, the strength and stiffness of a composite structure are directly related to the fiber volume fraction, which is defined as the fraction of fiber volume to total volume of the composite. The most common method to measure the fiber volume fraction is acid digestion, which is a useful method when the total weight of the composite, the fiber weight, and the total weight can easily be obtained. However, acid digestion is a destructive test, so the material will no longer be available for additional characterization. Acid digestion can also be difficult to machine out specific components of a composite structure with complex geometries. These disadvantages of acid digestion led the author to develop a method to calculate the fiber volume fraction. The developed method uses optical microscopy to calculate the fiber area fraction based on images of the cross section of the composite. The fiber area fraction and fiber volume fraction are understood to be the same, based on the assumption that the shape and size of the fibers are consistent in the depth of the composite. This tutorial explains the developed method for optically determining fiber area fraction performed at NASA Langley Research Center.

  20. The Fraction of Cancer Attributable to Ways of Life, Infections, Occupation, and Environmental Agents in Brazil in 2020

    PubMed Central

    Azevedo e Silva, Gulnar; de Moura, Lenildo; Curado, Maria Paula; Gomes, Fabio da Silva; Otero, Ubirani; de Rezende, Leandro Fórnias Machado; Daumas, Regina Paiva; Guimarães, Raphael Mendonça; Meira, Karina Cardoso; Leite, Iuri da Costa; Valente, Joaquim Gonçalves; Moreira, Ronaldo Ismério; Koifman, Rosalina; Malta, Deborah Carvalho; Mello, Marcia Sarpa de Campos; Guedes, Thiago Wagnos Guimarães; Boffetta, Paolo

    2016-01-01

    Many human cancers develop as a result of exposure to risk factors related to the environment and ways of life. The aim of this study was to estimate attributable fractions of 25 types of cancers resulting from exposure to modifiable risk factors in Brazil. The prevalence of exposure to selected risk factors among adults was obtained from population-based surveys conducted from 2000 to 2008. Risk estimates were based on data drawn from meta-analyses or large, high quality studies. Population-attributable fractions (PAF) for a combination of risk factors, as well as the number of preventable deaths and cancer cases, were calculated for 2020. The known preventable risk factors studied will account for 34% of cancer cases among men and 35% among women in 2020, and for 46% and 39% deaths, respectively. The highest attributable fractions were estimated for tobacco smoking, infections, low consumption of fruits and vegetables, excess weight, reproductive factors, and physical inactivity. This is the first study to systematically estimate the fraction of cancer attributable to potentially modifiable risk factors in Brazil. Strategies for primary prevention of tobacco smoking and control of infection and the promotion of a healthy diet and physical activity should be the main priorities in policies for cancer prevention in the country. PMID:26863517

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