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Guiny, Eliane M. "Hydraulic and biological aspects of fish passes for dams". Thesis, University of Glasgow, 2001. http://theses.gla.ac.uk/1565/.
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The primary purpose of the dissertation is to quantify the efficiency and operation of various types of fish passes for dams. This is achieved through a novel experiment of testing juvenile salmon in a scale model fish-passes with a range of small structures including vertical slots, orifices, weirs and combinations of all three. Direct comparisons of the efficiency of each type of fish pass in terms of upstream migration. Two identical physical models were constructed, one at the Fisheries Research Services Freshwater Laboratory at Almondbank, Perth, Scotland where observations were made of fish behaviour. The other model at the University of Glasgow, Glasgow tested only hydraulic conditions. The physical models were simplified representations of a reach of a river downstream of a dam, weir or any other obstruction to fish migration. A removable cross wall incorporating one of the types of pass tested divided the flume into two pools. A significantly higher proportion of fish moved through submerged orifices or vertical slots than through weirs for a given flow rate and velocity. The orifice and vertical slot passing efficiencies are directly correlated to the velocities existing in their vicinity. To reach the weir/slot/orifice devices, salmon parr tended also to stay near the bottom of the flume and followed a path along the sides of the arena, which provided them with low velocities and cover. In the vicinity of the weir/orifice/slot devices, the movements of salmon parr were consistent with energy-conserving strategies. Clearly, the extrapolations of results from the behaviour of small to large salmon remains cautious, the intention of this research being to characterise the behaviour of small salmon and to develop clear testable hypotheses about how large salmon may respond to water flow. Preliminary field tests were then conducted at Tongland Dam fish pass to test the main recommendation extrapolated from the parr behavioural study. The particular situation of this fish pass, which contains both weirs and orifices, allows a comparison between the two. Passive Integrated Transponder (PIT) tags together with antennae installed at a weir and an orifice were used to individually monitor the movement of wild spawning salmon passing through the fish pass. The results of the field test are as yet, inconclusive.
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Silva, Jonny Carlos da. "Expert system prototype for hydraulic system design focusing on concurent engineering aspects /". Florianópolis, SC, 1998. http://repositorio.ufsc.br/xmlui/handle/123456789/77609.
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Tese (Doutorado)- Universidade Federal de Santa Catarina, Centro Tecnológico.Made available in DSpace on 2012-10-17T05:48:41Z (GMT). No. of bitstreams: 0Bitstream added on 2016-01-08T23:41:14Z : No. of bitstreams: 1 140111.pdf: 6168050 bytes, checksum: c9535fdd5afea16f4e8a40212072887e (MD5)
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Grinnell, S. "The social health and well-being impacts associated with hydraulic fracturing". Thesis, Liverpool John Moores University, 2018. http://researchonline.ljmu.ac.uk/9919/.
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In 2014, the UK Government announced they were, 'going all out for shale gas,' as part of the UKs need to change the energy landscape to focus on security of supply, economic benefits, (reduction of imports), the need to cut carbon emissions and further establish renewable sources. Subsequent licencing to explore for Shale Gas resulted in significant publicised protests concerning environmental issues. Published literature in the form of Case Studies and completed Health Impact Assessments, of which there is a paucity, tend to support these concerns. However, clearly absent from this literature, are the Social Health and Well-Being Impacts (Social Determinants of Health) associated with Hydraulic Fracturing. Data was gathered using an on-line questionnaire which was open for six weeks. The questionnaire included both qualitative and quantitative methods of data collection. Ninety four respondents completed the questionnaire providing over seven hundred pieces of information and comments. Thematic analysis was used to analyse the data sets. The results of this analysis indicate that the threat to the quality of life, environmental concerns and a lack of confidence in the governance of the decision-making process as key factors in the perceptions of the participants. The complexities of these themes were then visually described using causal loop modelling techniques. The research concludes that the public have a very negative and mistrustful perception of Government, Statutory Bodies and the Oil and Gas Industry. Frequently cited social impacts include, stress, anxiety, loss of control and negative impacts on communities including environmental pollution. The implications of this research are that authorities and relevant bodies need to pay far more attention to people and community needs when granting and considering planning consent and licences.
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Cheema, Mahmood A. (Mahmood Ahmad). "Environmental health, risk analysis and safety aspects of nuclear magnetic resonance and spectroscopy systems". Thesis, Massachusetts Institute of Technology, 1991. https://hdl.handle.net/1721.1/129503.
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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1991.Title as it appears in the June, 1991 M.I.T. Graduate List: Geochemistry and petrogenesis of basalts from Broken Ridge and Naturaliste Plateau, S.E. Indian Ocean.
Includes bibliographical references (leaves 47-48).
by Mahmood A. Cheema.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1991.
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Eizagguirre-Garcia, Domingo. "Industrial toxic waste and health : a practical case study". Thesis, University of Glasgow, 1996. http://theses.gla.ac.uk/710/.
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The objective of this thesis is to develop a standard, simple methodology for the assessment of health in areas near sources of pollution. This methodology should make use of readily available data and computing facilities. A literature review on previous studies on the subject was carried out in order to draw from existing experience. A total of twenty-five studies on health near sources of pollution were reviewed. These studies were carried out between 1982 and 1991, most of them in Britain, two in France. The types of pollution sources studied ranged from waste dumps to incinerators, to nuclear power stations. Each study was described, stressing on their respective backgrounds, building on geographical (study) areas, data, analysis and results. Brief synopses of the studies were next grouped, according to those using conventional epidemiological methods and more innovative ones. Finally, it was concluded from the review that the methodology intended should be descriptive, making use of routinely collected data, with a study area based on small geographical divisions (small areas) and taking into account socio-economic differences over its study area. In the absence of accurate data on pollution levels, and from the previous experience of one of the studies reviewed, circular study areas centred on the source of pollution and subdivided into rings were used, with distance of each ring to the centre as a proxy indicator of levels of pollution. The new methodology was found valid and the objective of the study was met. It compared favourably with previously reviewed methodologies. The methodology is intended to be used as a descriptive, exploratory tool, whose findings may warrant further analytic studies, which the method is not designed to, and can not, replace. The use of routinely collected data greatly facilitated the study, although caveats for future studies exist on them. Distance as a surrogate for exposure is seen as a simplistic approach, but in the absence of reliable exposure data it is a useful one. Standardization by Deprivation category has also been found useful to account for factors for which little data exist.
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Muller, Sabine. "A simple ergonomic intervention for neck and upper back musculoskeletal pain in computer users". Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96938.
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Thesis (MScPhysio)--Stellenbosch University, 2015ENGLISH ABSTRACT: Background: The use of computers at school, university, work and for social media is growing and whilst neck pain is common in the general population, computer users have an even higher prevalence. Incorrect workstation ergonomics have been identified as a risk factor for the development of neck pain in computer workers. Aims: To assess the effect of adjusting chair and monitor height of a female office worker’s computer workstation on work related neck and upper back pain intensity, comfort of her sitting posture and disability. Methods: An N=1 study was conducted using the A-B-C design consisting of a computer workstation adjustment involving chair and monitor height of a female office worker. The effect of the intervention was evaluated using the Visual Analogue Scale (VAS) to measure neck and upper back pain intensity and comfort of sitting position, and the Neck Disability Index to measure disability. The effect of the intervention was assessed over the three phases, consisting of four weeks each. During these phases, the participant could continue with her usual computer work. The results were compiled and tabulated. Results: A reduction in neck and upper back pain intensity as well as an increase in sitting comfort position were found. However these improvements were not statistically or clinically significant. The effect size for pain intensity was 0.76 and for sitting comfort 0.21. The participant reported no disability as measured by the Neck Disability Index, at the start and at the end at the end of the study. Conclusion: The vertical adjustment of this female office worker’s chair and monitor height according to her anthropometrics improved neck and upper back pain intensity and comfort of sitting position. This ergonomic workstation intervention could form part of a practical management option for computer users with neck and upper back pain. Further research is recommended to establish whether these findings are generalizable to the wider community of computer users.
AFRIKAANSE OPSOMMING: Probleemstelling: Die gebruik van rekenaars by skole, universiteite, werksplekke en vir sosiale doeleindes neem toe. Nek pyn kom dikwels in die algemene bevolking voor, maar dit is meer prevalent in rekenaargebruikers. ‘n Werkstasie wat nie ergonomies korrek opgestel is nie, is geidentifiseer as ‘n risikofaktor vir die ontwikkeling van nekpyn in rekenaar werkers. Doelwitte: Om te bepaal of aanpassings in die stoel- en beeldskerm hoogte van ‘n vroulike kantoor werker se rekenaar werkstasie, ‘n effek het op werksverwante nek en boonste rug pyn, sitgemak en funksionele vermoë. Methode: Die N=1 studie met ‘n A-B-C ontwerp is onderneem en het bestaan uit n rekenaar werkstasie aanpassing waarby die hoogte van die stoel en beeldskerm van ‘n vroulike relenaargebruiker aangepas is. Die effek van die intervensie is ge-evalueer deur middle van die visueel analoogskaal (VAS) om pyn en sitgemak te bepaal; en die Nek Ongeskiktheids Indeks (NOI) om gestremtheid te bepaal. Die effek van die intervensie is oor drie fases, wat elk bestaan het uit vier weke, evalueer. Gedurende die fases, kon die deelnemer met haar gewone rekenaarwerk voortgaan. Die resultate is saamgestel en getabuleer. Resultate: Daar was ‘n vemindering in die intensiteit van nekpyn, boonste rug pyn en die sitgemak van die individu het ook verbeter. Hierdie verbeteringe was egter nie statisties of klinies betekenisvol nie. Die effek grootte vir pyn intensiteit was 0.76 en vir sitgemak was 0.21. Die deelnemer het geen gestremdheid gerapporteer, soos gemeet met die NOI met aanvangs van die studie of teen die einde van die studie nie. Gevolgtrekking: Die vertikale hoogte-aanpassing van die stoel en beeldskerm van hierdie vroulike rekenaar werker volgens haar antropometrie het bygedra tot ‘n verbetering in nek en boonste rug pyn, asook sitgemak. Hierdie ergonomiese werkstasie intervensie kan deel vorm van die praktiese hantering van nek en boonste rug pyn in rekenaargebruikers. Verdere navorsing wod aanbeveel om te bepaal of hierdie bevindinge veralgemeenbaar is na die wyer gemeenskap van rekenaarverbruikers.
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Du, Toit Willem Johannes. "The relationship between health and safety and human risk taking behaviour in the South African electrical construction industry". Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1009529.
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Mankind, and the development of people, exists due to risk-taking behaviour. It is not that humans should not take risks, but rather the ability to identify the magnitude of risk exposure in order that mankind‟s actions would be so selected as to mitigate exposed risk factors, that no harm should befall them. The approach to health and safety (H&S) has always been to manage H&S environmental factors that could have a negative impact on people, capital, and organisational systems. However, the critical component of human risk-taking behaviour that would have a far greater impact has rarely been acknowledged as part of the drivers that increase risk exposure. Human behaviour is a major contributing factor in accident causation. Although human error cannot be completely eliminated, it should be identified and correctly managed according to each individual‟s risk-taking profile. The reason people decide to take certain risks under certain conditions and the effect it has on H&S management systems is a key component to managing organisational risk exposure. To quantify the value of individual risk-taking behaviour could provide management with better opportunities of lowering the organisational risk exposure. Human risk-taking behaviour is influenced by each individual‟s perception of risk. Such perception of risk will influence decisions on risk-taking behaviour, which in turn is influenced by the individual‟s psychological profile and environmental factors, including character and the impact of a cultural environment. The electrical construction and maintenance industry differs from other similar industries in that the physical entity of electricity requires not only sensory perception for the identification and evaluation of risk factors, but also requires specialised knowledge and testing equipment to evaluate the parameters of electrical installation, plant or equipment. Without such competence, direct exposure to most electrical installations could be fatal. The optimum human resource (HR) solution for managing the risk potential of high risk-taking behaviour is the rating and allocation of specific job tasks that can match and limit the individual potential for risk-taking behaviour and the impact on organisational incident statistics. Maintaining and optimising employee job performance enables organisations to better achieve pre-set goals and missions. Such improvements being a catalyst for better job performance by setting limitations on high risk-taking behaviour, that will improve H&S performance by lowering incident rates.
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Moore, Adam. "An Empirical Study of Particulate Matter Exposure for Transit Users at Bus Stop Shelters". PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/870.
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Congested traffic corridors in dense urban areas are key contributors to the degradation of urban air quality. While waiting at bus stops, transit patrons may be exposed to greater amounts of vehicle-based pollution, including particulate matter, due to their proximity to the roadway. Current guidelines for the location and design of bus stops do not take into account air quality or exposure considerations. This thesis provides a unique contribution to roadside air quality studies and presents an innovative method for the consideration of bus shelter placement. Exposure to roadside pollutants is estimated for transit riders waiting at three-sided bus stop shelters that either: 1) face roadway traffic, or 2) face away from roadway traffic. Shelters were instrumented with particulate matter monitoring equipment, sonic anemometers for wind speed and direction, and vehicle counters capable of categorizing vehicles by length. Temperature and relative humidity were gathered from a nearby monitoring station. Data were collected for two different days at three shelters during both the morning and afternoon peak periods for a total of eleven data periods. Bus shelter orientation is found to significantly affect concentration of four sizes of particulate matter: ultrafine particles, PM1, PM2.5, and PM10. Shelters with an opening oriented towards the roadway were observed to have significantly higher concentrations inside the shelter than outside the shelter. In contrast, shelters oriented away from the roadway were observed to have significantly lower concentrations inside the shelter than outside the shelter. The differences in average particulate matter concentrations are statistically significant across all four sizes of particulate matter studied. Additional correlation and linear regression investigation reveals interactions between particulate concentrations and built environment characteristics, vehicle flow, and weather conditions. Temperature and relative humidity played a large role in the diurnal variation of average concentration levels. In all instances, particulate concentrations were greater during the morning period, often substantially so. Particulate concentrations are shown to vary based on both wind speed and direction. Vehicle flow is correlated with particulate levels, though significance is not consistent. Lagged vehicle flow is demonstrated to be more consistently significant. Regression analysis suggests weather factors such as wind, temperature, and relative humidity explain roughly 70% of particulate variation, while vehicle flow explains less than 6%.
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Espinal, Dayana. "A comparison of measurement techniques used for 3-D pointing tests". Honors in the Major Thesis, University of Central Florida, 2001. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/221.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Engineering
Engineering
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James, Genevieve. "The effect of personalised adjustments to computer workstations on the efficiency and physical comfort of computer operators". Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1005190.
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The present study sought to investigate the effects of a Standard workstation, designed for “average” users, on an anthropometrically diverse sample of computer operators, and to assess whether physical and perceptual responses, as well as performance efficiency were dependent on stature. Further investigation assessed the influence of personalised adjustments to the Standard workstation, based on the anthropometric characteristics of the subjects, as well as the introduction of a custom-designed ‘floating’ wrist support, on subject responses. All subjects (n=30) were tested in each of the three workstations: Standard, Personalised and Wrist Support. For analysis of responses in the Standard workstation, subjects were divided into three groups depending on their stature: Short (<1650mm), Medium (1650mm to 1800mm), Tall (>1800mm). The musculoskeletal responses indicated that Tall subjects were forced to adopt the most awkward general body postures as a result of the low computer screen. However, the low screen allowed for the Short subjects to adopt the most natural general body postures, although levels of muscular activity in the upper trapezius suggest that the muscular load imposed on both Short and Tall subjects was significantly greater than that imposed on the Medium subjects. In addition, the Medium subjects’ perceptions of the Standard workstation dimensions support the fact that this workstation was better suited to users with “average” morphologies. The responses elicited in the Personalised and Wrist Support workstations were improved significantly when compared to the Standard workstation. Joint angles were more natural, upper trapezius EMG was reduced, standard of performance improved and perceptual responses indicated a diminished incidence of body and visual discomfort, as well as greater perceived satisfaction with these workstation dimensions. The improved physical responses suggest a decrease in the risk of developing cumulative trauma disorders. Although subjects were unaccustomed to the wrist support device, this workstation demonstrated a further reduction in the range of wrist angles, as well as a general positive attitude towards the concept.
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Wergeland, Oscar y Astrid Mehlberg. "The value of Health and Safety aspects in Product-Service Systems : A case study based on the manufacturing industry". Thesis, Karlstads universitet, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-68487.
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Companies are expected to reduce the impact on society caused by its operations while at the same time, generate profit for its stakeholders. One way to satisfy both parts is by creating shared values. As the trend of servitization becomes more popular the ability of Product-Service Systems (PSS) to deliver additional value to customers arises. PSS provides an opportunity for developing a sustainable business model to benefit both the society and the stakeholders. A sustainable PSS can be based on the Triple Bottom Line dimensions, environment, economic, and social. Since the economic and environmental advantages have already been studied for PSS:s, the social aspect is yet to be studied in detail. This thesis focuses on the Occupational Safety and Health (OSH) theme of the social dimension, for PSS:s. Both the ability to improve the social dimension performance and the role it plays in the value proposition for PSS:s were studied. The thesis has been based on a case study on one company in a Business to Business market. It was found that customers seldom demanded or mentioned health and safety aspects for PSS:s, even when an increase of OSH was achieved by the PSS. However, it could also be concluded that all interviewed thought OSH was important for the company and the employees but there were divided opinions regarding OSH, if it would be put in the value proposition or not. By analysing the customer situation and how it operates, companies should use the customizability of PSS:s to better match their requirements and thus develop the value proposition for the PSS. Cost estimations for accidents have been done which showed that one single accident can cause very high costs. It is a good investment to prevent risks which should be communicated when selling PSS:s. Furthermore, it is important to communicate both internally within the firm, and externally to customers, about what health and safety benefits the PSS will contribute with.Företag förväntas att reducera påfrestningarna på samhället och miljön orsakade av deras verksamhet och samtidigt fortsätta generera värde till dess intressenter. Ett sätt att tillgodose båda parter är genom att skapa så kallade delade värden. Då trenden att tjänstefiera blir mer och mer populär finns det möjlighet för ett så kallat Produkt-Service System (PSS) att leverera mervärde till kunderna. PSS ger en möjlighet att utveckla en hållbar affärsmodell som gynnar både samhället och intressenterna. Ett hållbart PSS kan grundas på de tre byggstenarna för Triple Bottom Line, miljö, ekonomi och samhälle. Då de ekonomiska och miljömässiga fördelarna redan har studerats för PSS fokuserar denna studie på hur konceptet står sig för den samhälleliga aspekten. I denna rapport studeras arbetshälsa och säkerhet för PSS, både möjligheten att förbättra den samhälleliga aspekten i Triple Bottom Line samt vilken roll dessa värden spelar för en värdepropositionering för PSS. Rapporten har baserats på en fallstudie på ett företag inom marknaden för Business till Business. Det konstaterades att kunderna sällan efterfrågar eller nämner hälso- och säkerhetsaspekter i förhandlingar om PSS, även när en ökning av arbetshälsa och säkerhet uppnåddes. Hur som helst tyckte alla intervjuade att arbetshälsa och säkerhet var viktigt för företag och anställda men det var trots detta delade meningar om det borde vara en del av värdepropositioneringen eller inte. Genom att analysera kundernas situation och hur de arbetar borde företag använda anpassningsbarheten av PSS för att bättre matcha kundernas önskemål och således utveckla värdepropositioneringen för PSS. Kostnadsberäkningar för olyckor har genomförts som visar att en enskild olycka kan orsaka mycket höga kostnader. Det är en god investering att förebygga risker vilket borde kommuniceras vid försäljning av PSS:s. Det är viktigt att både kommunicera internt inom företaget samt externt till kunderna om de hälso- och säkerhetsaspekter som PSS bidrar med.
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Raphela, Selepeng France. "Occupational exposure to electromagnetic fields in the heavy engineering CO2 welding industry in the Mangaung Metropolitan municipality". Thesis, Bloemfontein : Central University of Technology, Free State, 2013. http://hdl.handle.net/11462/181.
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Thesis (D. Tech. (Environmental Health)) -- Central University of technology, Free State, 2013Some epidemiological studies suggest that exposure to high levels of electromagnetic fields (EMFs) may be linked with the development of adverse health effects. However there is still controversy on this matter. Due to rapid technological growth in the modern society, employees in the welding and electrical industries are highly exposed to electromagnetic fields and may be at a high risk for developing occupational diseases. The health effects which may result from exposure to electromagnetic fields are related to the strength and frequency of the fields. This study was conducted to (i) assess the exposure levels to EMFs in the welding industry, (ii) determine the possible health risks associated with exposure levels, and (iii) develop a health and safety model to guide the industry on how to reduce exposure to EMFs. The study was conducted in one mega welding company in the Mangaung Metropolitan Municipality. Welders, fitters and office workers (88 in total) gave consent to participate in the study and completed questionnaires (ethical clearance attached). Measurements of extremely low frequency EMFs were taken in workshop A, workshop B and working offices. Measurements for magnetic fields were taken at distances of 1, 2 and 3 meters (m) from the EMFs sources. The exposure levels of magnetic fields were very high in the workshops, with welders and fitters exposed to about 7.6 microtesla (μT). Electric fields were relatively low in all workstations. Participants in the study were experiencing symptoms of ill health such as headaches, sleep disorders, fatigue and distress. The symptoms reported by the workers were similar in the both groups (exposed and control). There is no clear relationship between recorded exposure levels and the development of the reported symptoms. The health and safety model was developed to guide the industry to reduce exposure to electromagnetic fields. The model describes the implementation of engineering and administrative control measures in an effort to reduce exposure to EMFs. The model also highlights the importance of wearing personal protective equipment to shield against EMFs amongst others. This study suggests that occupational exposure to high levels of extremely low frequency EMFs may increase the risk for development of chronic diseases such as leukaemia, brain and breast cancer and other diseases among highly exposed employees. Implementation of safety measures is necessary to reduce exposure to EMFs.
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Savarese, Josephine. "The gifts of the chip? : the regulation of occupational health and safety in the post-industrial age". Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30324.
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In the face of the extensive changes resulting from the Post-Industrial Age, many are questioning "the gifts of the chip," or, more specifically, the ability of computer technologies to deliver the comfort predicted. The objective of this thesis is to examine the law's response to computer technology concerning occupational health and safety. This inquiry is necessary due to the dramatic changes that have occurred in the workforce, altering the profile of workplace health.The thesis begins with a reference to The Gift of Stones, a fictional account of the difficulties that stone workers experienced when the Bronze Age arrived. Modern labourers face parallel struggles due to the arrival of the Post-Industrial Age characterized by technological innovation and restructuring. The legitimacy and effectiveness of occupational health and safety law is challenged by changes to social institutions and by computer related work injuries.
In many jurisdictions, the state has responded to these changes by enacting ergonomic standards that seek to minimize the harmful effects of computer use. The thesis examines the trend towards ergonomic standards with particular focus on Canadian initiatives. In conclusion, it argues that ergonomic regulations are an important means of promoting safer computer practices. Additionally, ergonomic standards provide a mechanism for continued state regulation of occupational health and safety. The challenge for rule makers is ensuring that the standards are a component of comprehensive legal reforms.
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Ahmadi, Mahdi. "Ozone Pollution of Shale Gas Activities in North Texas". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849624/.
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The effect of shale gas activities on ground-level ozone pollution in the Dallas-Fort Worth area is studied in detail here. Ozone is a highly reactive species with harmful effects on human and environment. Shale gas development, or fracking, involves activities such as hydraulic fracturing, drilling, fluid mixing, and trucks idling that are sources of nitrogen oxides (NOX) and volatile organic compounds (VOC), two of the most important precursors of ozone. In this study two independent approaches have been applied in evaluating the influences on ozone concentrations. In the first approach, the influence of meteorology were removed from ozone time series through the application of Kolmogorov-Zurbenko low-pass filter, logarithmic transformation, and subsequent multi-linear regression. Ozone measurement data were acquired from Texas Commission on Environmental Quality (TCEQ) monitoring stations for 14 years. The comparison between ozone trends in non-shale gas region and shale gas region shows increasing ozone trends at the monitoring stations in close proximity to the Barnett Shale activities. In the second approach, the CAMx photochemical model was used to assess the sensitivity of ozone to the NOX and VOC sources associated with shale oil and gas activities. Brute force method was applied on Barnett Shale and Haynesville Shale emission sources to generate four hypothetical scenarios. Ozone sensitivity analysis was performed for a future year of 2018 and it was based on the photochemical simulation that TCEQ had developed for demonstrating ozone attainment under the State Implementation Plan (SIP). Results showed various level of ozone impact at different locations within the DFW region attributed to area and point sources of emissions in the shale region. Maximum ozone impact due to shale gas activities is expected to be in the order of several parts per billion, while lower impacts on design values were predicted. The results from the photochemical modeling can be used for health impact assessment and air quality management purposes. Both studies in this research show that the impact of shale gas development on local and regional level of ozone is significant, and therefore, it should be considered in the implementation of effective air quality strategies.
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Mount-Campbell, Austin Fraser. "NurseBrain: A design concept for patient handover support in hospital care based on identification of useful aspects of paper-based cognitive artifacts for nurses". The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1480635675557003.
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Ziegler, Jessica. "How Can the Construction Client Improve the Work Environment in the Real Estate and Construction Process? : An Investigation of the Health and Safety Aspects in the Early Phases". Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297877.
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During the last decade, the Swedish work environment authority (AV) observed a stagnancy of fatal accidents in Sweden. According to statistics, the building industry in Sweden is one of the third largest industries regarding occupational injuries and the industry with the most severe recorded fatal accidents. Scientific contributions have found that efforts and focus on health and safety aspects during the planning and design phases (early phases) could reduce work environment problems in the construction and maintenance phases. The purpose of this study is to explore how the construction client can improve the health and safety aspects in the early phases to enhance the work environment in the construction and maintenance phases. Further, identify the main challenges of health and safety in the early phases to improve the work environment at the construction and maintenance phases. The study has applied qualitative methods, with 13 semi-structured interviews with senior project managers at a public construction client in Sweden. After analyzing the semi-structured interviews, the findings were discussed with an expert panel for further clarifications. This study has identified that health and safety aspects during the planning and design can improve by different measures and methods to ensure a safer work environment in the construction project. It should be a priority for the construction client to be proactive with the health and safety aspects in the early phases. Furthermore, identified the study three main challenges of health and safety aspects. These challenges of health and safety aspects have been identified as crucial to address in the early phases for succeeding in preventing occupational accidents in construction projects. The first identified challenge is the lack of the construction clients' consciousness of their profound responsibilities in the work environment. The second challenge raised is the insufficient work environment competencies of the applied BAS-P and designers in the construction project. The last identified challenge is the lack of safety communication in the construction project, as the transfer meeting between the BAS-P and BAS-U and lessons learned meetings. The portrayed main challenges seem to face both countries inside and outside the EU, as reasoned from the discussion with Åsgård et al. Furthermore, the work environment is essential for commitment, re-evaluation, and improvements in routine activity. Including the construction clients and the involved actors in the construction process to achieve a construction industry with zero accidents and fatalities.Arbetsmiljöverket (AV) har under det senaste decenniet observerat en stagnation av dödsolyckor i Sverige. Enligt statistik är byggbranschen i Sverige en av de tredje största branscherna när det gäller arbetsskador och den bransch som har flest registrerade dödsolyckor. Vetenskapliga studier har visat att prioriteringar och fokus på hälsa och säkerhet under planerings- och projekterings skeden (tidiga skeden) kan bidra till att undvika arbetsmiljöproblem på byggarbetsplatsen i produktions skede, liksom i underhållsskedet. Syftet med denna studie är att undersöka hur byggherren kan förbättra hälso- och säkerhetsaspekterna i de tidiga skedena för att förstärka arbetsmiljön i produktions- och underhållsskedena. Även att identifiera de viktigaste utmaningarna för hälso- och säkerhetsaspekter i de tidiga faserna för att förbättra arbetsmiljön i produktions- och underhållsskedena. Studien har tillämpat kvalitativa metoder, där semi-strukturerade intervjuer genomfördes med 13 projektledare hos en offentlig byggherre i Sverige. Efter att ha analyserat resultaten från de semi-strukturerade intervjuerna diskuterades analysen med en expertpanel. Resultatet i denna studie har identifierat att hälso- och säkerhetsaspekter under planering och projektering skedena kan förbättras med olika åtgärder och metoder för att säkerställa en säkrare arbetsmiljö i byggprojektet. Vad man finner är att det bör vara en prioritet för byggkunden att vara proaktiv med hälso- och säkerhetsaspekterna i de tidiga faserna. Tre huvudutmaningar för hälso- och säkerhetsaspekter har dessutom identifierats i resultatet. Dessa utmaningar för hälso- och säkerhetsaspekter ses som avgörande att hantera i de tidiga faserna för att lyckas med förebyggandet av arbetsolyckor i byggprojekt. Den första identifierade utmaningen är bristen på byggherrarnas medvetenhet om deras ansvar i arbetsmiljön. Den andra utmaningen som tas upp är den otillräckliga arbetsmiljökompetensen hos den tillämpade BAS-P och projektörerna i byggprojektet. Den sista identifierade utmaningen är bristen på säkerhetskommunikation i byggprojektet, som överföringsmöte mellan BAS-P och BAS-U och erfarenhetsåterföringsmöten. De viktigaste utmaningarna som presenteras i denna studie för förbättra hälso- och säkerhetsaspekterna i dem tidiga skedena verkar vara utmaningar som finns både i länderna inom och utanför EU, vilket togs upp i diskussionen med Åsgård et al. Dessutom dras slutsatsen att arbetsmiljön är ett viktigt ämne där engagemang, omvärdering och förbättringar bör vara en återkommande aktivitet. För både byggherren och de involverade aktörerna i hela byggprocessen för att uppnå en byggbransch med noll olyckor och dödsfall.
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Murphy, Lauren Ann. "A Macroergonomics Approach Examining the Relationship between Work-family Conflict and Employee Safety". PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/214.
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In 2008, there were more than 5,200 workplace fatalities in the United States (BLS, 2010b). During the same time period, U.S. employees missed almost 1.1 million days from work (BLS, 2010c). Accidents are unexpected outcomes that result not only from individuals' behaviors, but from contextual factors (Krause, 1997; Reason, 1990). Therefore, unsafe behaviors have to be interpreted according to a combination of what is occurring in the environment and what the individual is doing in that environment. The present study sought to create a more comprehensive model of safety by means of macroergonomics. Macroergonomics utilizes sociotechnical systems theory to posit that a work system is composed of a personnel subsystem (i.e., ways individuals perform tasks), a technological subsystem (i.e., tasks to be performed), and external factors (Hendrick, 2002a). Perceived control over work hours, an aspect of the technological subsystem, was examined as an antecedent of work-family conflict. Supervisor instrumental support, an aspect of the personnel subsystem, was examined as a moderator of the relationships between perceived control over work hours and work-family conflict. Supervisors have an imperative role in employees' perception of control over their work hours (Kelly & Moen, 2007). Supervisor instrumental support was also hypothesized to moderate the relationships between work-family conflict and safety performance. Supervisors who support their employees in their work-family matters exceed mandatory requirements set forth to protect workers' safety and health (Mearns, Hope, Ford, & Tetrick, 2010). A majority of the 360 participants in the present study were grocery store employees who worked in the front end of the store as cashiers. Job tenure in this particular grocery store chain was an average of 7 years (SD = 5.96) and the average number of hours worked per week was 31 (SD = 8.55). The employees were an average age of 38 years old (SD = 15.25). Two hundred and sixty-two (73%) of the participants were female, 330 (92%) were White, 196 (55%) employees were married or living as married, 146 (41%) employees identified themselves as parents with children living at home, and 58 (16%) employees provided elder care. The data were analyzed using a moderated mediation model. An employee's perceived control over his/her work hours was negatively associated with work-to-family and family-to-work conflict. Work-to-family conflict was not significantly associated with either safety compliance or participation. In contrast, family-to-work conflict was significantly associated with both safety compliance and participation. These findings replicate Cullen and Hammer's (2007) findings that family-to-work conflict, but not work-to-family conflict, is negatively associated with safety compliance and participation. The replication of these significant findings gives support to macroergonomics' assertion that external forces (i.e., family) can affect the safety of employees. All of the meditating and moderating relationships proposed in this dissertation were not significant. I conducted post hoc analyses to determine other possible significant paths in the model examined. The FSSB dimension of supervisor instrumental support was found to positively affect both safety compliance and participation. Supervisor instrumental support was also found to directly affect work-to-family conflict. Overall FSSB and its subdimensions demonstrated similar patterns in the hypothesized relationships and in additional relationships examined. Numerous implications can be recognized from this dissertation. First, interdisciplinary approaches to safety research are emerging and important in the pursuit of safer work environments. Macroergonomics and I/O psychology have commonalities that lend themselves to a good partnership where researchers can learn from each other and collaborate to advance the study of safety. Second, organizations need to focus on the stressors their employees experience as part of their safety programs, and numerous studies, including this dissertation, have found that family-to-work conflict impacts safety compliance and participation. Future safety research may incorporate macroergonomics, which emphasizes that focusing on one adverse aspect of the system may not be enough to create valuable change if there are other adverse factors still creating demands elsewhere in the system. This will allow for a more comprehensive model that ensures certain aspects of the system are not neglected, which can reduce effectiveness of constructs used to create positive changes.
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Yoshimura, Eri. "Risk factors for piano-related pain among college students and piano teachers solutions for reducing pain by using the ergonomically modified keyboard /". Thesis, connect to online resource. Recital, recorded Apr. 14, 2006, in digital collections. Access restricted to the University of North Texas campus, 2009. http://digital.library.unt.edu/ark:/67531/metadc1469.
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To, Curtis Sai-Hay. "Closed-Loop Control and Variable Constraint Mechanisms of a Hybrid Neuroprosthesis to Restore Gait after Spinal Cord Injury". Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1269809553.
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Villines, Jonathan A. "USING GIS TO DELINEATE HEADWATER STREAM ORIGINS IN THE APPALACHIAN COAL-BELT REGION OF KENTUCKY". UKnowledge, 2013. http://uknowledge.uky.edu/bae_etds/15.
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Human activity such as surface mining can have substantial impacts on the natural environment. Performing a Cumulative Hydrologic Impact Assessment (CHIA) of such impacts on surface water systems requires knowing the location and extent of these impacted streams. The Jurisdictional Determination (JD) of a stream’s protected status under the Clean Water Act (CWA) involves locating and classifying streams according to their flow regime: ephemeral, intermittent, or perennial. Due to their often remote locations and small size, taking a field inventory of headwater streams for surface mining permit applications or permit reviews is challenging. A means of estimating headwater stream location and extent, according to flow regime using publicly available spatial data, would assist in performing CHIAs and JDs. Using headwater point-of-origin data collected from Robinson Forest in eastern Kentucky along with data from three JDs obtained via a Freedom of Information Act (FOIA) request to the U.S. Army Corps of Engineers (USACE), headwater streams in the Appalachian Coal Belt were characterized according to a set of spatial parameters. These characteristics were extrapolated using GIS to delineate headwater streams over a larger area, and the results were compared to the National Hydrography Dataset (NHD).
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Wictor, Ieda Claudia. "Níveis de maturidade em programas de conservação auditiva em indústrias e a percepção do risco por trabalhadores". Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/1974.
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CAPESO alto nível de ruído ocupacional é um problema presente em todas as regiões do mundo. O ruído é um agente ambiental que afeta diariamente uma grande parte de trabalhadores em indústrias e geram inúmeras consequências negativas. Pesquisas sobre o ruído ocupacional e os efeitos na saúde do trabalhador são publicados, porém, a análise da percepção individual do trabalhador sobre o seu comportamento constitui ainda um tema pouco abordado. Esta pesquisa buscou avaliar a influência do nível de maturidade dos Programas de Conservação Auditiva sobre a percepção de risco pelos trabalhadores. O presente estudo avaliou cinco empresas metalúrgicas com uma amostra de 243 trabalhadores expostos a níveis de pressão sonora superiores ao nível de ação na legislação nacional 85 dB (A). Tendo como base a revisão bibliográfica, foram aplicados dois questionários para avaliação das variáveis de natureza qualitativa. O primeiro questionário foi desenvolvido e aplicado às empresas para avaliar os níveis de maturidade em programas de conservação auditiva. Posteriormente foi aplicado um questionário para o trabalhador considerando a percepção individual do risco, a percepção dos efeitos do ruído, cultura de segurança e o comportamento de risco. Os dados foram analisados estatisticamente, onde foram utilizadas ferramentas de análise de confiabilidade, análise de variância – ANOVA, Teste de Tukey e estatística descritiva para relacionar os dados. Concluiu-se que os diferentes níveis de maturidade não apresentam diferenças significativas na percepção do trabalhador, entretanto, foi possível constatar um maior percepção de risco nos diferentes níveis de exposição ao ruído.
The high level of occupational noise is a problem present in all regions of the world. Noise is an environmental agent that daily affects a large number of workers in industries and generate countless negative consequences. Research on occupational noise and the health effects of the worker is published, however, the analysis of individual perception of the worker on his behavior is still a subject little addressed. This research aimed to evaluate the influence of the level of maturity of the Hearing Conservation Programs on the perception of risk by the workers. The present study evaluated five metallurgical companies with a sample of 243 workers exposed to sound pressure levels above the action level in national legislation 85 dB (A). Based on the bibliographic review, two questionnaires were used to evaluate qualitative variables. The first questionnaire was developed and applied to companies to evaluate maturity levels in auditory conservation programs. Subsequently a questionnaire was applied to the worker considering the individual perception of risk, perception of the effects of noise, safety culture and risk behavior. The data were analyzed statistically, where tools of reliability analysis, analysis of variance - ANOVA, Tukey test and descriptive statistics were used to relate the data. It was concluded that the different levels of maturity do not present significant differences in the perception of the worker, however, it was possible to verify a greater perception of risk in the different levels of exposure to noise.
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Vingéus, Kevin. "AN INVESTIGATION ON MIMICKING WITH BREATH FOR IMMERSION : A case study on immersion comparing the differences between input-feedback and queued guidance during a breathing exercisein a VR experience using common hardware". Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-15792.
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Practicing breathing exercises isn’t very engaging thou it is seen as great for well-being. Applications can utilize breath as a controller mechanism for interactions. With virtual reality (VR) being an effective tool for inducing the sense of immersion and presence, a breathing exercise was paired up with three alternative sessions in an application that was developed to examine the differences between mimicking and controlling input during an experience in VR, with the baseline of interaction being that of no other controllers but head-orientation-tracking of the VR device. Two pilot tests were performed to evaluate functionality and procedure. The main tests investigated the case of research. It was possible to identify mimicking as an immersive experience that promoted the breathing exercise, while input was more immersive but less beneficial towards performing the breathing exercise. The study was also conducted with- and addresses some design limitations of commonly accessible hardware.
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Ottosson, Ulrika y Siri Rönnlund. "Implementation of a Mobile Healthcare Solution at an Inpatient Ward". Thesis, KTH, Medicinteknik och hälsosystem, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279145.
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Healthcare is a complex system under great pressure for meeting the patients’ needs. Implementing technology at inpatient wards might possibly support healthcare professionals and improve quality of care. However, these technologies might come with issues and the system might not be used as intended. This master thesis project investigates how healthcare professionals communicate at an inpatient ward and how this might be affected by implementing a Mobile Healthcare Solution (MHS). Further, it sought to question why healthcare professions might, or might not, use the MHS as a support of their daily work and what some reasons for this might be. Research methods were of qualitative approach. Field studies were performed at an inpatient ward and further, two healthcare professionals were interviewed. Grounded Theory (GT) was chosen as a method to process the data and obtain understanding for communication at the inpatient ward. The results showed that healthcare professionals communicate verbally, written and by reading, using different tools. The most prominent ways of communication were verbally, where it was common to report or discuss about a patient. The means for communication did not get drastically affected by implementing the MHS and reasons for this were of social, technical and organizational types. Some reasons for not using the MHS were habits and due to healthcare professionals perceiving the MHS as more time consuming than manual handling. However, a specific investigation of whether this might affect the usage of the MHS is yet needed
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Eriksson, Per Gustav. "Analysis of Physiotherapists Perceptions for Improvement of Digital Innovation". Thesis, KTH, Medicinteknik och hälsosystem, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279129.
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With the current challenges for the healthcare such as increased demand for care, financial and resource constraints along with rapid changes and complexity there is high believe in digital innovation and digitalisation to efficacy resources and aid in delivering a safer, more accessible and patient centred valuable care. There is a digitalisation that is ongoing, being used and implemented over several different areas of healthcare. Since healthcare can be seen as a complex adaptive system, there is a need to understand several agents. The aim is to gather more knowledge about perceptions within the physiotherapy staff and give recommendations and directions for improvements regarding digital innovation. Opinions about digital innovation have been gathered with open interviews and a semisystematic literature review with focus on physiotherapy. Too find subjective data the mixed method Q methodology was applied. The open interviews resulted in eight categories: digital innovation, digital innovation being used, digital innovation not used, management, obstacles, education, wishful thinking, applications and systems and associated opinions. The semi-systematic literature review showed on a rapid scientifically development, 25 articles was found and thematically analysed. 140 cited viewpoints and facts was merged with the results from the open interviews. Ten physiotherapists performed the q-sort consisting of 25 statements. Three factors were found. Interpreted as digital innovation optimism & patient oriented, digital innovation scepticism & management oriented and digital innovation sceptical optimism. Video-call technique is strongly encouraged by factor one contrary to factor two. Integrity is the major conflicting viewpoint between the factors. The result shows that gender can affect if a physiotherapist is either optimistic or sceptical to digital innovation. Using existing models such as UTAUT could improve acceptance about digital innovation. Education is perceived as important among all factors. Nine participants responded on baseline questions showing low knowledge of the term mHealth and little communication with IT departments.
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Van, Vledder Nicole. "An ergonomic intervention : the effect of a chair and computer screen height adjustment on musculoskeletal pain and sitting comfort in office workers". Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96865.
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Thesis (MScPhysio)--Stellenbosch University, 2015.ENGLISH ABSTRACT: Aims: To assess the effect of a vertical height adjustment of the chair and visual display unit (VDU) on work related upper quadrant musculoskeletal pain (WRUQMP) and sitting comfort in computer users. The upper quadrant refers to the occiput, cervical and upper thoracic spine including the clavicles and scapulae. Methods: An N=1 study was conducted using the ABC design whereby an ergonomic workstation adjustment, of VDU and chair height, was compared to the subject’s usual workstation settings. Pain and sitting comfort were measured using visual analogue scales (VAS). The subject was assessed over the four week phases as she performed her typical VDU work. The results were compiled and tabulated. Results: Both the mean and variance in pain intensity decreased after the workstation intervention. A deterioration was noted in sitting comfort. Conclusion: The vertical height adjustment of the chair and VDU may have contributed to a decrease in WRUQMP in this subject. This safe, economical workstation intervention may be a practical management option for the computer user suffering from WRUQMP. Further research into the measurement of comfort whilst sitting at a computer workstation, is recommended.
AFRIKAANSE OPSOMMING: Doelwitte: Om die effek te bepaal van n vertikale aanpassing van die stoel en beeldskerm van rekenaargebruikers op werksverwandte boonste kwadrant muskuloskeletale pyn en sitgemak. Die boonste kwadrant verwys na die oksiput, servikale en boonste torakale werwelkolom en sluit ook die klavikel en skapula in. Methode: Die N=1 studie is onderneem met gebruik van die ABC ontwerp in terme waarvan n ergonomiese aanpassing van stoel en beeldskerm vergelyk is met die normale gebruik van die deelnemer. Pyn en sitgemak is gemeet deur die gebruik van die Visueel analoogskaal. Die interwensies is ge-evalueer oor vierweekfases tydens normale rekenaar gebruik van die deelnemer. Die resultate is saamgestel en getabuleer. Uitkoms: Beide die gemiddelde en veranderlike pynintensiteit het verminder nadat die werkstasie aangepas is. Geen verbetering in sitgemak is opgemerk nie. Gevolgtrekking: Die vertikale hoogte-aanpassing van die stoel en beeldskerm het moontlik bygedra tot die verminderde pynvlakke in hierdie deelnemer. Hierdie veilige, ekonomiese verstelling is moontlik n praktiese beheeropsie vir rekenaargebruikers wat werksverwandte boonste kwadrant muskuloskeletale pyn verduur. Verder studie in die meet en waarneming van sitgemak tydens rekenaarwerk is nodig.
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Saggu, Rajinder Kaur. "Effect of a chair and computer screen height adjustment on the neck and upper back musculoskeletal symptoms in an office worker". Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96971.
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Thesis (MScPhysio)--Stellenbosch University, 2015.ENGLISH ABSTRACT: Aims: To assess the effect of a chair and computer screen height adjustment on the neck and upper back musculoskeletal symptoms in an office worker. Methods: An N=1 study was conducted using the ABC design. Ethics approval was obtained for the study and the participant provided informed written consent. The participant was assessed over three four week phases as she performed her habitual computer work. The outcome measures assessed during the three phases were the pain intensity and perceived sitting comfort. The three phases were named the baseline, intervention and wash-out phases. During the baseline phase, the outcome measures were obtained at the participant‟s habitual work station. The intervention phase involved a vertical adjustment of the chair and computer screen height. The wash-out phase allowed the participant to adjust the chair and computer screen height to their choice. A follow-up interview was conducted with the participant three months after completion of the study. The mean values and the ranges of the pain intensity and perceived comfort were obtained and compared. The data collected was captured on a Microsoft Excel 2010 spread sheet, where after the data was tabulated and presented graphically. Results: The mean pain intensity of the participant increased slightly during the intervention phase in comparison to the baseline phase, but remained stable during the wash-out phase. The mean perceived sitting comfort deteriorated initially during the intervention phase, but improved later during the intervention phase and showed greater improvement during the wash out phase. The perceived sitting comfort showed more improvement than the pain intensity during the washout phase. Both the pain intensity and perceived sitting comfort showed improvement at the three months follow up assessment, post completion of the study. Conclusion: The vertical height adjustment of the chair and the VDT did not improve the participant‟s pain intensity and perceived sitting comfort when compared to the participant‟s habitual workstation parameters. The findings do not favour the horizontal viewing angle. The findings of this study however support the use of „slightly below horizontal‟ viewing angle as being conducive to reduce the pain intensity and improve the sitting comfort of an office worker.
AFRIKAANSE OPSOMMING: Doelstelling: Om die effek te bepaal van die hoogte aanpassing van die stoel en rekenaarskerm op die nek en bo-rug muskuloskeletale simptome van 'n kantoorwerker. Metodes: „n N=1 studie was uitgevoer deur gebruik te maak van die ABC ontwerp. Etiese goedkeuring was verkry vir die studie en die deelnemer het ingeligte skriftelike toestemming verleen. Die deelnemer was ge-evalueer oor drie vier week-lange fases terwyl sy haar gewone rekenaarwerk verrig het. Die uitkomsmetings ge-evalueer tydens die drie fases was pyn intensiteit en waargenome sitgemak. Die drie fases was genoem die basislyn, intervensie en uitwas fases. Gedurende die basislyn fase was die uitkomsmetings by die deelnemer se gewone werkstasie ingevorder. Die intervensie fase het 'n vertikale aanpassing van die stoel en rekenaarskerm behels. Die uitwas fase het die deelnemer toegelaat om haar stoel en rekenaarskerm se hoogte aan te pas volgens haar keuse. 'n Opvolg onderhoud was gevoer met die deelnemer drie maande na die voltooiing van die studie. Die resultate was vasgelê op 'n Microsoft Excel 2010 data bladsy, waarna die data getabuleer en grafies uitgebeeld is. Resultate: Die gemiddelde pyn intensiteit van die deelnermer het effens toegeneem tydens die intervensie fase in vergelyking met die basislyn fase, maar het stabiel gebly tydens die uitwas fase. Die gemiddelde waargenome sitgemak het aanvanklik verswak tydens die intervensie fase, maar het later verbeter tydens die intervensie fase en het aangehou verbeter tydens die uitwas fase. Die waargenome sitgemak het groter verbetering getoon as die pyn intensiteit tydens die uitwas fase. Beide pyn intensiteit en waargenome sitgemak het verbetering getoon by die drie maande opvolg evaluasie, na voltooiing van die studie. Gevolgtrekking. Die vertikale hoogte aanpassing van die stoel en rekenaarskerm het nie die deelnemer se pyn intensiteit en waargenome sitgemak in vergelyking met die deelnemer se gewone werkstasie parameters verbeter nie. Hierdie bevindinge is nie ten voordeel van die horisontale kykhoek nie. Nietemin, ondersteun die bevindinge van hierdie studie die gebruik van die "effens onder die horisontale" kykhoek as bevorderend om die pyn intensiteit te verminder en die sitgemak van 'n kantoorwerker te verbeter.
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van, Wincoop Sven. "Analysis of Learning from IncidentsProcesses in Swedish and DutchHealthcare Systems : A Mixed Methods Study for Cross-Border Learning". Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302464.
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Many healthcare organisations face repetitive incidents because organisations tend to fail to learn from the past. Learning from incidents (LFI) in healthcare is a process through which healthcare professionals and the organisation as a whole seek to understand adverse events that have taken place. The LFI process consists of five main steps: data acquisition, investigation and analysis, planning interventions, implementing interventions, and evaluations. In order to reduce the reoccurrence of incidents, it is important that LFI processes are improved. As a prerequisite, it is necessary to gain insight into the steps of the LFI process to identify hindrances (bottlenecks) and mitigate them. This thesis is a broad comparative study of the LFI processes in Dutch and Swedish healthcare systems. Cross-border comparisons between LFI systems can support mutual learning, and consequently lead to improvements of healthcare organisations’ learning processes. The study consists of an analysis of Swedish and Dutch legislation, national healthcare inspectorates, and hospitals’ learning from incidents processes. Legislation was analysed through a (legal) documentation study. Healthcare inspectorates’ practices in LFI were analysed by a combination of documentation studies, and by conducting interviews with one Dutch inspector, one Swedish inspector, and one Swedish development strategist. For analysis of hospitals’ LFI processes, a questionnaire and interview study with fourteen Dutch and eleven Swedish hospitals were conducted. Analysis of these processes was done at the hand of a number of quality statements developed based on a literature study. The main differences between how the two countries’ learn from incidents are in data acquisition, and investigation and analysis. The Netherlands have various reporting systems, as well as diversity in incident investigation methods. Sweden has more uniformity in these matters. Moreover, Sweden has a national system for sharing lessons learned between hospitals, which can benefit the learning process on a national level. The Netherlands currently does not have such a system. Sweden and the Netherlands have similar strengths and weaknesses in LFI. Both countries have accessible data acquisition systems, and it does not take much time to report incidents. There are however significant disparities between incidents and sentinel events in both countries in the quality of investigations and analyses, planning of interventions and implementation of interventions. The implementation and evaluation phases are also regarded to have the lowest quality, based on analysis of the quality statements. Dutch and Swedish legislation and the supervision of the healthcare inspectorates only cover these last two phases to a limited extent. Requirements with respect to incidents are also only formulated to a limited extent (except data acquisition), which may explain the significant difference of quality when compared to sentinel events. There are resemblances between the scopes of the legal frameworks and inspectorates, and the LFI processes in hospitals. There is therefore reason to believe that hospitals typically do not excel above what is required by legislation or by the healthcare inspectorates.I många vårdorganisationer upprepar sig incidenter eftersom organisationer tenderar att misslyckas med att lära sig från incidenter. Att lära från incidenter (LFI) inom hälso- och sjukvården är en process genom vilket vårdpersonal och organisationen som helhet försöker förstå incidenter som har ägt rum. LFI-processen består av fem huvudsteg: datainsamling, utredning och analys, planering av åtgärder, implementering av åtgärder, och utvärderingar. För att minska upprepande av incidenter är det viktigt att LFIprocesser förbättras. Det här examensarbetet är en jämförande studie av LFI-processerna i holländska och svenska sjukvårdssystem. Gränsöverskridande jämförelser mellan LFI-system kan stödja ömsesidigt lärande och därmed leda till förbättringar av vårdorganisationernas lärande. Studien består av en analys av svensk och holländsk lagstiftning, nationella inspektioner och sjukhusens lärande från incidensprocesser. Lagstiftningen analyserades genom en (juridisk) dokumentationsstudie. Sjukvårdsinspektionernas praxis i LFI analyserades med en kombination av dokumentationsstudier och genom att göra intervjuer med en holländsk inspektör, en svensk inspektör och en svensk utvecklingsstrateg. För analys av sjukhusens LFI-processer genomfördes en enkätstudie och intervjustudie med 14 holländska och 11 svenska sjukhus. Analysen genomfördes med ett kvalitetsindikatorer som är baserade på en litteraturstudie. De viktigaste skillnaderna mellan hur de två länderna lär sig av incidenter är inom datainsamling och incidentutredning. I Nederländerna används många olika rapporteringssystem och utredningsmetoder för händelser. Sverige har mer enhetlighet i dessa frågor. Dessutom har Sverige ett nationellt system för att dela lärdomar mellan sjukhusen, vilket kan gynna lärningsprocessen på nationell nivå. Nederländerna har för närvarande inget liknande system. Sverige och Nederländerna har liknande styrkor och svagheter i LFI. Båda länderna har tillgängliga datainsamlingssystem och det tar inte mycket tid att rapportera incidenter. Det finns betydliga skillnader mellan incidenter och händelser som har medfört allvarliga vårdskador i båda länderna. Detta gäller kvaliteten på utredningar, planering av åtgärder och implementering av årgärder. Implementerings- och utvärderingsfaserna anses ha lägsta kvalitet, baserat på analys av kvalitetsindikatorerna. Holländsk och svensk lagstiftning och tillsynen av inspektionerna täcker dessa två sista faser endast i begränsad utsträckning. Krav på incidenter formuleras också endast i begränsad omfattning (förutom datainsamling), vilket kan förklara skillnaden i kvalitet jämfört med händelser som har medfört en allvarlig vårdskada. Det finns likheter mellan räckvidden av lagstiftningen och inspektionen, och LFIprocesserna på sjukhus i både länder. Det finns därför anledning att tro att sjukhus vanligtvis inte utmärker sig högre än vad som krävs enligt lagstiftningen eller av hälsooch sjukvårdsinspektionerna.
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"十六世紀至二十世紀四十年代洞庭湖區的環境變遷: 以「堤垸」為中心的考察". Thesis, 2011. http://library.cuhk.edu.hk/record=b6075464.
Texto completoResumen
羅杜芳.Thesis (Ph.D.)--Chinese University of Hong Kong, 2011.
Includes bibliographical references (leaves 210-215)
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Abstracts in Chinese and English.
Luo Dufang.
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"中國水電工程決策過程的開放化: 怒江水壩爭議再考察". 2010. http://library.cuhk.edu.hk/record=b5896637.
Texto completoResumen
褚涓."2010年9月".
"2010 nian 9 yue".
Thesis (M.Phil.)--Chinese University of Hong Kong, 2010.
Includes bibliographical references (leaves 99-106).
Abstract in Chinese and English.
Chu Juan.
論文摘要 --- p.i
Abstract --- p.ii
Chapter 第一章 --- 導論 --- p.1
Chapter 第一節 --- 研究背景與研究問題 --- p.1
Chapter 第二節 --- 理論文獻綜述 --- p.4
“碎片化的權威主義´ح與“多元化´ح --- p.5
中國環保NGO的政治闡釋 --- p.11
Chapter 第三節 --- 研究設計 --- p.16
研究對象 --- p.16
研究意義 --- p.17
資料收集 --- p.20
文章結構 --- p.20
Chapter 第二章 --- 水壩政治的制度環境變遷 --- p.21
Chapter 第一節 --- 水電體制改革：行動者與利益 --- p.23
水電管理與投資體制改革 --- p.23
水電的規劃與決策 --- p.26
Chapter 第二節 --- 官僚政治：環保總局分享決策權 --- p.29
環保總局的“升遷´ح之路 --- p.29
環評制衡水電開發 --- p.30
Chapter 第三節 --- 公民社會政治：環保NGO結緣江河開發 --- p.33
都江堰“保衛戰´ح --- p.34
漫灣電站社會影響評估 --- p.36
Chapter 第三章 --- “保留一條原始生態江´ؤ´ؤ怒江！ ´ح --- p.38
Chapter 第一節 --- 怒江水電開發政策議題的開端 --- p.38
怒江水電項目的由來 --- p.38
環保總局發力 --- p.40
Chapter 第二節 --- 環保NGO的初期動員 --- p.44
掀起媒體“風暴´ح --- p.44
遊說官員 --- p.47
尋求國際社會的支援 --- p.49
NGO之間的聯盟 --- p.S1
深入怒江考察和調研 --- p.52
通過兩會提案保護怒江 --- p.54
Chapter 第三節 --- 總理批示：“慎重研究、科學決策´ح --- p.55
政府内部的角力 --- p.55
爭論聲中叫停 --- p.57
Chapter 第四節 --- 社區行動與政府的反應 --- p.59
綠色流域走進社區 --- p.59
遭到打壓 --- p.62
Chapter 第四章 --- 新一輪的挑戰與動員 --- p.65
Chapter 第一節 --- 轉折：總理再次批示 --- p.65
“傳媒戰´ح受挫與院士考察團訪問怒江 --- p.65
地方政府遊說中央 --- p.67
Chapter 第二節 --- 環保NGO的第二輪動員 --- p.69
呼吁知情权与参与权 --- p.69
啟動法律工具 --- p.71
Chapter 第三節 --- 陷入膠著 --- p.72
官方的表態 --- p.72
環保NGO的後續倡導 --- p.75
Chapter 第四節 --- 虎跳峽、小南海電站再掀波瀾 --- p.77
Chapter 第五章 --- 結論：決策開放化的解讀 --- p.80
政府的“碎片化´ح與“權威´ح --- p.82
利益代表：有序的政治參與官僚包辦 --- p.85
公眾參與的“陷阱´ح --- p.92
參考文獻 --- p.99
附件：訪談對象 --- p.107
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Farwell, Dianna. "Evaluation of NIOSH-sponsored engineering faculty workshops". Thesis, 1993. http://hdl.handle.net/1957/35664.
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Lee, Yuan-chun Harry. "The simulated effect of the lightning first short stroke current on a multi-layered cylindrical model of the human leg". Thesis, 2015. http://hdl.handle.net/10539/22609.
Texto completoResumen
A dissertation submitted to the Faculty of Engineering and the Built Environment,
University of the Witwatersrand, Johannesburg, in ful lment of the requirements
for the degree of Master of Science in Engineering.
Johannesburg, 2015This research investigates the e ects of the frequency components of the lightning First Short Stroke (FSS) on the current pathway through human tissues using frequency domain analysis. A Double Exponential Function (DEF) is developed to model the FSS with frequency components in the range 10 Hz 100 kHz. Human tissues are simulated using Finite Element Analysis (FEA) in COMSOL and comprises of two types of models: Single Layer Cylindrical Model (SLCM) and Multi-layered Cylindrical Model (MLCM). The SLCM models 54 human tissues independently and the MLCM models the human leg with ve tissue layers: bone marrow, cortical bone, muscle, blood and fat. Three aspects are analysed: current density, complex impedance and power dissipation. From the SLCM results, aqueous tissues have the lowest impedances and tissue heat dissipation is proportional to tissue impedance. Results from the MLCM show that 85% of the FSS current ows through muscle, 11% ows through blood, 3:5% through fat and the rest through cortical bone and bone marrow. From the results, frequency dependent equivalent circuit models consisting of resistors and capacitors connected in series are proposed. The simulation results are correlated with three main clinical symptoms of lightning injuries: neurological, cardiovascular and external burns. The results of this work are applicable to the analysis of High Voltage (HV) injuries at power frequencies.
MT2017
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Harinarain, Nishani. "Effective HIV and AIDS management : a South African construction sector model". Thesis, 2013. http://hdl.handle.net/10413/11297.
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Bandi, Ajay Kumar. "An integrated sensor system for early fall detection". 2013. http://hdl.handle.net/1805/3651.
Texto completoResumen
Indiana University-Purdue University Indianapolis (IUPUI)Physical activity monitoring using wearable sensors give valuable information about patient's neuro activities. Fall among ages of 60 and older in US is a leading cause for injury-related health issues and present serious concern in the public health care sector. If the emergency treatments are not on time, these injuries may result in disability, paralysis, or even death. In this work, we present an approach that early detect fall occurrences. Low power capacitive accelerometers incorporated with microcontroller processing units were utilized to early detect accurate information about fall events. Decision tree algorithms were implemented to set thresholds for data acquired from accelerometers. Data is then verified against their thresholds and the data acquisition decision unit makes the decision to save patients from fall occurrences. Daily activities are logged on an onboard memory chip with Bluetooth option to transfer the data wirelessly to mobile devices. In this work, a system prototype based on neurosignal activities was built and tested against seven different daily human activities for the sake of differentiating between fall and non-fall detection. The developed system features low power, high speed, and high reliability. Eventually, this study will lead to wearable fall detection system that serves important need within the health care sector. In this work Inter-Integrated Circuit (I2C) protocol is used to communicate between the accelerometers and the embedded control system. The data transfer from the Microcontroller unit to the mobile device or laptop is done using Bluetooth technology.
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Musonda, Kennedy. "Issues regarding sustainability of rural water supply in Zambia". Diss., 2004. http://hdl.handle.net/10500/1243.
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The purpose of this dissertation was to identify factors that contribute to the sustainability of rural water supply facilities (WSFs). Twenty-four interviews were conducted: 16 from rural communities and 8 from water supply agencies. Key findings are that in order to achieve sustainability of WSFs, there is need to ensure that (1) there is an effective community organisation; (2) communities have the ability to operate and maintain WSFs; (3) communities are able to raise adequate user fees for purchasing spare parts; and (4) that there is a strong backup support at the district level to carry out major repairs. Major threats to the sustainability of WSFs include high poverty levels in communities, weak institutional framework and inability of communities to handle major breakdowns.Social Work
M.A. (Social Work)