277 research outputs found
Dynamics of aluminum use in the global passenger car system: Challenges and solutions of recycling and material substitution
No full textThis thesis analyzes the relationship between the design of vehicles, end-of-life vehicle (ELV) management, and global material production using aluminum as an example. Vehicle manufacturing, material industries and ELV management face different challenges. An important challenge for vehicle manufacturers is the design of lightweight vehicles to reduce energy use and greenhouse gas (GHG) emissions in the use phase for which an increased use of aluminum of different alloys is an attractive option. The aluminum industry has an interest in reducing energy consumption and GHG emissions, which can be accomplished effectively through recycling. ELV management must be improved to enable the first two systems to use aluminum scrap in a sustainable manner. Today, the sorting of different alloys is limited. As a result of having mixed scrap at the ELV phase and limited opportunities for aluminum refining, there may be a future scrap surplus that cannot be absorbed by the aluminum-recycling sink, which is passenger cars. These three sectors are connected through material flows, and a change in one of the sectors can severely affect the others\u27 options for reaching their goals. This thesis addresses the following questions: 1) How are the dynamics of the global vehicle stock changing the boundary condition for aluminum recycling? 2) What are the most effective interventions to minimize a future aluminum scrap surplus? 3) What are the options for material substitution in vehicles to reduce direct and indirect GHG emissions over time? To answer these questions, a system approach is employed to analyze how these three sectors are linked and to explore options for all sectors to reach their objectives in the long term. This thesis employs global bottom-up stock-driven models of the aluminum cycle. A basic model was used to identify the scrap surplus problem. A refined model with segments, components and alloys resolution combined with a source-sink diagram was used to evaluate different solution options. In addition, a global dynamic fleetrecycling MFA model was developed to simulate the future impacts of material substitutions of conventional steel with high-strength steel (HSS) and aluminum on material cycles, energy use and GHG emissions related to the global passenger vehicle fleet. The main findings in this thesis are: i) a continuation of the current practice of cascadic use would eventually result in a scrap surplus because this practice depends on the continuous and fast growth of the secondary casting stock in the global vehicle fleet, a condition that is unlikely to be met. Model simulation indicated a non-recyclable scrap surplus by approximately 2018\ub15 if no alloy sorting is introduced. The surplus is potentially substantial and could grow to reach a level of 0.4-2 kg/cap/yr by 2050, thereby significantly reducing the option of the aluminum industry to reduce its energy consumption through recycling. ii) Drastic changes in ELV management practices are necessary to make use of the growing scrap flow in the future, including further dismantling and efficient component-to-component recycling, alloy sorting of mixed shredded scrap, and designing recycling-friendly alloys that function as alternative sinks for aluminum scrap. iii) Light-weighting has the potential to substantially reduce global emissions of vehicles (9-18 gigatons cumulative CO2-eq. between 2010 and 2050). In the medium term (5-15 years), global emissions reductions from substituting standard steel with aluminum are similar to those achievable by HSS; however, over a longer term (after 15-20 years), substitution with aluminum can reduce total emissions more effectively, provided that the wrought aluminum will be recycled back into automotive wrought aluminum. The environmental consequences of products in general and passenger cars in particular have led to an increasing awareness of the dependencies between the shaping of vehicles and the shaping of the environment. Governments and intergovernmental bodies have formulated quality goals for the environment, such as the 2-degree target, and have introduced emissions standards, thereby extending the responsibility of automobile manufacturers to the use phase. On the materials side, legislation has been introduced to extend producer responsibility, mainly with the goal of avoiding toxic substances and reducing the amount of waste, as is noted in different end-of-life vehicle (ELV) legislation and directives. The current ELV directives do not sufficiently address the management of material systems as a whole or quality issues related to material recovery. To harmonize ELV management with goals for the global aluminum cycle and its impacts for the environment, it is essential to understand how the above-mentioned systems interact.Has partsPaper 1: Modaresi, Roja; M\ufcller, Daniel B.. The Role of Automobiles for the Future of Aluminum Recycling. Environmental Science and Technology 2012 ;Volum 46.(16) s. 8587-8594 http://dx.doi.org/10.1021/es300648w Copyright \ua9 2012 American Chemical SocietyPaper 2: Rombach, Georg; Modaresi, Roja; M\ufcller, Daniel B.. Aluminium Recycling- Raw Material Supply from a Volume and Quality Constraint System. World of Metallurgy - ERZMETALL 2012 ;Volum 65.(3) s. 157-162Paper 3: Modaresi, Roja; L\uf8vik, Amund Nordli; M\ufcller, Daniel Beat. Component- and Alloy-Specific Modeling for Evaluating Aluminum Recycling Strategies for Vehicles. JOM: The Member Journal of TMS 2014 ;Volum 66.(11) s. 2262-2271., The article is not included due to copyright available at http://dx.doi.org/10.1007/s11837-014-0900-8 Paper 4: L\uf8vik, Amund Nordli; Modaresi, Roja; M\ufcller, Daniel Beat. Long-term strategies for increased recycling of automotive aluminum and its alloying elements. Environmental Science and Technology 2014 ;Volum 48.(8) s. 4257-4265 http://dx.doi.org/10.1021/es405604g Copyright \ua9 2014 American Chemical SocietyPaper 5: Modaresi, Roja; Pauliuk, Stefan; L\uf8vik, Amund Nordli; M\ufcller, Daniel Beat. Global Carbon Benefits of Material Substitution in Passenger Cars until 2050 and the Impact on the Steel and Aluminum Industries. Environmental Science and Technology 2014 ;Volum 48. s. 10776-10784 http://dx.doi.org/10.1021/es502930w Copyright \ua9 2014 American Chemical Society PublisherNTNU SeriesDoctoral thesis at NTNU;2015:11
Dynamics of aluminum use in the global passenger car system: Challenges and solutions of recycling and material substitution [Elektronisk resurs]
No full textThis thesis analyzes the relationship between the design of vehicles, end-of-life vehicle (ELV) management, and global material production using aluminum as an example. Vehicle manufacturing, material industries and ELV management face different challenges. An important challenge for vehicle manufacturers is the design of lightweight vehicles to reduce energy use and greenhouse gas (GHG) emissions in the use phase for which an increased use of aluminum of different alloys is an attractive option. The aluminum industry has an interest in reducing energy consumption and GHG emissions, which can be accomplished effectively through recycling. ELV management must be improved to enable the first two systems to use aluminum scrap in a sustainable manner. Today, the sorting of different alloys is limited. As a result of having mixed scrap at the ELV phase and limited opportunities for aluminum refining, there may be a future scrap surplus that cannot be absorbed by the aluminum-recycling sink, which is passenger cars. These three sectors are connected through material flows, and a change in one of the sectors can severely affect the others' options for reaching their goals. This thesis addresses the following questions: 1) How are the dynamics of the global vehicle stock changing the boundary condition for aluminum recycling? 2) What are the most effective interventions to minimize a future aluminum scrap surplus? 3) What are the options for material substitution in vehicles to reduce direct and indirect GHG emissions over time? To answer these questions, a system approach is employed to analyze how these three sectors are linked and to explore options for all sectors to reach their objectives in the long term. This thesis employs global bottom-up stock-driven models of the aluminum cycle. A basic model was used to identify the scrap surplus problem. A refined model with segments, components and alloys resolution combined with a source-sink diagram was used to evaluate different solution options. In addition, a global dynamic fleetrecycling MFA model was developed to simulate the future impacts of material substitutions of conventional steel with high-strength steel (HSS) and aluminum on material cycles, energy use and GHG emissions related to the global passenger vehicle fleet. The main findings in this thesis are: i) a continuation of the current practice of cascadic use would eventually result in a scrap surplus because this practice depends on the continuous and fast growth of the secondary casting stock in the global vehicle fleet, a condition that is unlikely to be met. Model simulation indicated a non-recyclable scrap surplus by approximately 2018±5 if no alloy sorting is introduced. The surplus is potentially substantial and could grow to reach a level of 0.4-2 kg/cap/yr by 2050, thereby significantly reducing the option of the aluminum industry to reduce its energy consumption through recycling. ii) Drastic changes in ELV management practices are necessary to make use of the growing scrap flow in the future, including further dismantling and efficient component-to-component recycling, alloy sorting of mixed shredded scrap, and designing recycling-friendly alloys that function as alternative sinks for aluminum scrap. iii) Light-weighting has the potential to substantially reduce global emissions of vehicles (9-18 gigatons cumulative CO2-eq. between 2010 and 2050). In the medium term (5-15 years), global emissions reductions from substituting standard steel with aluminum are similar to those achievable by HSS; however, over a longer term (after 15-20 years), substitution with aluminum can reduce total emissions more effectively, provided that the wrought aluminum will be recycled back into automotive wrought aluminum. The environmental consequences of products in general and passenger cars in particular have led to an increasing awareness of the dependencies between the shaping of vehicles and the shaping of the environment. Governments and intergovernmental bodies have formulated quality goals for the environment, such as the 2-degree target, and have introduced emissions standards, thereby extending the responsibility of automobile manufacturers to the use phase. On the materials side, legislation has been introduced to extend producer responsibility, mainly with the goal of avoiding toxic substances and reducing the amount of waste, as is noted in different end-of-life vehicle (ELV) legislation and directives. The current ELV directives do not sufficiently address the management of material systems as a whole or quality issues related to material recovery. To harmonize ELV management with goals for the global aluminum cycle and its impacts for the environment, it is essential to understand how the above-mentioned systems interact. Has parts Paper 1: Modaresi, Roja; Müller, Daniel B.. The Role of Automobiles for the Future of Aluminum Recycling. Environmental Science and Technology 2012 ;Volum 46.(16) s. 8587-8594 http://dx.doi.org/10.1021/es300648w Copyright © 2012 American Chemical Society Paper 2: Rombach, Georg; Modaresi, Roja; Müller, Daniel B.. Aluminium Recycling- Raw Material Supply from a Volume and Quality Constraint System. World of Metallurgy - ERZMETALL 2012 ;Volum 65.(3) s. 157-162 Paper 3: Modaresi, Roja; Løvik, Amund Nordli; Müller, Daniel Beat. Component- and Alloy-Specific Modeling for Evaluating Aluminum Recycling Strategies for Vehicles. JOM: The Member Journal of TMS 2014 ;Volum 66.(11) s. 2262-2271., The article is not included due to copyright available at http://dx.doi.org/10.1007/s11837-014-0900-8 Paper 4: Løvik, Amund Nordli; Modaresi, Roja; Müller, Daniel Beat. Long-term strategies for increased recycling of automotive aluminum and its alloying elements. Environmental Science and Technology 2014 ;Volum 48.(8) s. 4257-4265 http://dx.doi.org/10.1021/es405604g Copyright © 2014 American Chemical Society Paper 5: Modaresi, Roja; Pauliuk, Stefan; Løvik, Amund Nordli; Müller, Daniel Beat. Global Carbon Benefits of Material Substitution in Passenger Cars until 2050 and the Impact on the Steel and Aluminum Industries. Environmental Science and Technology 2014 ;Volum 48. s. 10776-10784 http://dx.doi.org/10.1021/es502930w Copyright © 2014 American Chemical Society Publisher NTNU Series Doctoral thesis at NTNU;2015:11
Estimation of pollutant loads transported by runoff for today and future scenarios by using a GIS model : Case study, Luleå city centre
No full textUrbanisation has produced an increase in impervious surfaces which is reducing the amount of storm water infiltration and increasing rapidly surface runoff. Urban storm water carries a variety of pollutants from activities on residential, commercial, and industrial land. There are several objectives that must be accomplished to meet the European Water Framework Directive, however to date, no clear guidelines or legislation have been established regarding storm water quality. Transition to sustainable approaches such as Best Management Practices (BMPs) and Water Sensitive Urban Design (WSUD) is essential, especially in the face of an uncertain future with climate changes affecting the urban water system. The concentration and types of contaminants depends greatly on the type and intensity of activities and land use. By knowing the size of a catchment and the type of land use, it is possible to predict storm water run-off quantity. Subsequently, using generalised pollutant concentrations, it is possible to estimate the pollutant loads transported by the run-off to the receiving water bodies. The main objective of this study was to investigate the annual pollutant mean loads transported from a catchment to receiving water bodies. The study furthermore aimed at estimation of effects of climate change on pollutant loads. The case study was performed in the Luleå city centre located in the north part of Sweden with a cold climate condition. To perform the study, a GIS model was created with a total area of 230 hectares divided into 19 sub-catchments by using a Digital Elevation Model, an Orthophoto map, a storm water network map and a field study. Within each sub-catchment different kinds of land use were identified: roads, housing areas, parking areas, and green areas. As a result of this mapping, the pollution generated from the catchments was estimated as monthly and annual loads for today condition and also for future in periods of 2041-2070 and 2071-2100. Studied pollutants were heavy metals, such as Pb, Zn, Cu, and Cd and some other pollutants including COD, Tot-P, Tot-N, and TSS. While this study roughly estimates the pollutant loads transported to near water bodies, there is a need for further studies to evaluate the values of the water bodies and the legislation to allow the BMP and WSUD recommendations to be realized. Further more it is needed to consider climate change effects. The result of this study shows that climate change will have positive effects in case of pollutants loads but it is needed to perform further study on that since there might be some factors which was ignored and could affect the condition.Validerat; 20101217 (root
Psychoemotional and Ergonomics Risks in State LLC “Riga Psychiatric and neurology Center”
No full textPsihoemocionālo un ergonomisko darba vides risku novērtējums Valsts SIA „Rīgas psihiatrijas un narkoloģijas centrs”. Diplomdarbu izstrādāja Andris Žukovskis, darba zinātniskais vadītājs Doc. Dr. med. Ženija Roja
Diplomdarbā ir lappuses, 25 tabulas, 18 attēli, izmantoti 33 literatūras avoti, 2 pielikumi. Latviešu valodā.
Atslēgvārdi: PSIHOEMOCIONĀLIE RISKI, ERGONOMISKIE RISKI, PSIHIATRIJA, SGR-A METODE, NIOSH METODE, ĀEK METODE, IZDEGŠANAS SINDROMS, DARBA VIDE.
Diplomdarba izstrādes gaitā veikta darba vides risku identificēšana un novērtēšana uzņēmumā. Darba gaitā tika veikta darbinieku aptauja, īpašu uzmanību pievēršot psihoemocionālo un ergonomisko risku identificēšanai un novērtēšanai. Risku novērtēšanā tika izmantotas SGR-A, ĀEK, NIOSH, Psiholoģiskā klimata darba vidē novērtēšanas metodes.
Tika izstrādāti priekšlikumi darba vides uzlabošanai un riska faktoru novēršanai vai samazināšanai.Evaluation of psychoemotional and ergonomic work environment risks in "Riga psychiatric and narcology centre Ltd." Diploma work was written by Andris Žukovskis. Supervisor Doc. Dr. med. Ženija Roja.
In Graduation work there are pages, 25 tables, 18 pictures, 2appendixes are used 33 literature sources, and addition in Latvian language.
Keywords: PSYCHOEMOTIONAL RISKS, ERGONOMIC RISKS, PSYCHIATRY, SGR-A METHOD, NIOSH EQUATION, BURNOUT SYNDROME, WORK ENVIRONMENT
During development of this work the author identified work environment risks in the company. The author conducted survey of employees, concentrating on identifying and evaluating psychoemotional and ergonomic risks. Risks were evaluated using KIM-A, QEC, NIOSH, Work related stress index determination, work environment's psychological climate and violence risk evaluation methods.
The author developed suggestions for improvement of work environment and evaluating or decreasing risk factors
Work-related risk factors for seamstresses which cause occupational diseases and their preventive measures
No full textDarba vides riski šuvējām, kas izraisa arodslimības, un preventīvie pasākumi riska novēršanai. Darba autore: Gunta Vaišļa. Darba zinātniskā vadītāja: asoc. prof., Dr. med. Ženija Roja. Darbs izklāstīts uz 95 lapām, ietver 30 attēlus, 11 tabulas, 13 pielikumus, 47 informatīvos avotus. Maģistra darbs sastāv no četrām daļām. Pirmajā daļā ir apkopota un analizēta literatūra par darba vides riskiem, ar ko saskaras šuvējas darba vietā, par biežākām arodslimībām šuvējām strādājot ilgstoši profesijā. Otrajā daļā ir aprakstītas izmantotās pētījuma metodes. Trešajā daļā analizēti iegūto datu apkopošanas rezultāti, veikta rezultātu analīze un diskusija. Ceturtajā daļā izstrādāti preventīvie darba aizsardzības pasākumi. Maģistra darbā autore ir izstrādājusi praktiskās rekomendācijas darba devējiem un darbiniekiem. Secināts, ka ergonomiskie darba vides riski ietekmē šuvēju darbspējas, kā rezultātā attīstās arodslimības.Work-related risk factors for seamstresses which cause occupational diseases and their preventive measures. Author: Gunta Vaišļa. Supervisor: associate profesor, Dr.Med Ženija Roja. There are 95 pages in the master thesis, including 30 figures, 11 tables, 13 annexes and 47 literature references. The master paper includes four parts. In the first part there is gathered and analyzed literature about the working environment risks encountered in the workplace, for more frequent occupational diseases in a long-term occupation. The second part describes the methods of study used. The third paragraph analyses the results of the collection of data obtained, analyses and discussion of results. The fourth paragraph provides for preventive work protection measures. The master's work, the author has developed practical recommendations for employers and employees. Concluded, that the ergonomic risks of the working environment have an impact on the health of the seams, resulting in the development of occupational diseases
Ergonomic risks in pharmacists work and how to manage them
No full textMaģistra darba nosaukums: Ergonomiskā slodze farmaceitu darbā un to risināšanas iespējas. Darba autore: Alise Kalva. Darba vadītāja: Dr.med. Ženija Roja. Maģistra darba apjoms ir 67 lappuses, 9 tabulas, 11 attēli un 5 pielikumi. Maģistra sastāv no trijām daļām. Pirmajā daļā tiek analizēta literatūra par ergonomisko slodzi darbā. Otrajā daļā tiek aprakstītas darba vides risku novērtēšanas metodes, kuras tiek pielietotas darba izstrādē. Trešajā daļā tiek veikta Benu Latvija aptieku darbinieku anketēšana, lai noskaidrotu darbnieku subjektīvo viedokli, par viņu darba vietā esošajiem darba vides riskiem. Tiek veikt darba vides riska novērtējums, izmantojot Somijas 5 baļļu metodi un ergonomisko risku ātrās ekspozīcijas metodi. Secināts, ka farmaceitiem darba beigās vislielākais nogurums ir acīm un kājām, ko izraisa piespiedu poza stāvus.Title of this work is: Ergonomic risks in pharmacists work and how to manage them. Author of work: Alise Kalva. Supervisor: Zenija Roja. The thesis is 68 pages long, and includes 9 tables, 11 figures and 5 appendixes. Work consists of three parts. In the first part literature about ergonomic load in work is analysed. The second part of working environment risk assessment methods. In the third part a questionnaire of Benu Latvia pharmacists and pharmacy assistants is carried out in order to find out subjective opinion of the workers about work environment risks at their work. Others risk assesment method used were Finnish five-point method and ergonomic risk quick exposure check. It is concluded that at the end of the work pharmacists have the greatest fatigue in the eyes and feet, because of the forced standing posture
Work environment risks in metalworking industry and prevention measures
No full text“Metālapstrādē nodarbināto darba vides riski un to novēršanas pasākumi”. Darba autore Signe Vējkrīgere. Darba zinātniskā vadītāja: asoc. profesore, Dr. med. Ženija Roja. Maģistra darbs sastāv no 4 nodaļām, secinājumiem un praktiskajām rekomendācijām. Pirmajā nodaļā literatūras avotos publicētā informācija par metālapstrādes nozarē sastopamajiem darba vides riska faktoriem, to cēloņiem un ietekmi uz nodarbināto veselību. Otrajā daļā aprakstītas darbā izmantotās risku novērtēšanas metodes, bet trešajā daļā – apkopoti un analizēti pētījuma rezultāti. Ceturtā nodaļa ir vadlīnijas veselīgas un drošas darba vides nodrošināšanai metālapstrādē nodarbinātajiem, iekļaujot risku novēršanas un samazināšanas pasākumus nozarē. Darba apjoms ir 76 lpp., satur 21 attēlu, 12 tabulas, 12 pielikumus, izmantots 51 literatūras avots. Darbs uzrakstīts latviešu valodā. Atslēgvārdi: Darba vide, analīze, vadlīnijas, metālapstrāde“Work environment risks in metalworking industry and prevention measures”. Author: Signe Vējkrīgere. Scientific advisor: asoc. prof., Dr. med. Ženija Roja. Master’s thesis consists of four sections, conclusions. The first section analyzes published information from literature sources on occupational risk factors, their causes and impact on employees health in metalworking industry. The second section describes risk assessment methods, that are used in this thesis, but the third section – summary and analysis of results. Fourth section is guidelines how to provide safe and healthy work environment for metalworking industry’s employees, which includes occupational risk reduction and prevention measures. Master’s thesis contain 76 pages, including 21 figures, 12 tables, 51 literature references, 12 appendices. Thesis is written in Latvian. Keywords: Work environment, analysis, guidelines, metalworking
Psychosocial risks at work and relationship with the work ability and health habits of the call center employees
No full text„Psihosociālo darba vides risku saistība ar nodarbināto darbspējām un veselības paradumiem zvanu centros”. Darba autore: Sarmīte Rūtiņa-Rūtenberga. Darba zinātniskā vadītāja: asociētā profesore, Dr.med. Ženija Roja. Darba izklāstīts uz 117 lapām, ietver 45 attēlus, 13 tabulas, 9 pielikumus un 46 informatīvos avotus. Literatūras analīzē noskaidrots, ka psihosociālajiem darba vides faktoriem ir dažāda ietekme uz nodarbināto drošību un veselību. Psihosociālo darba vides faktoru radītā riska analīzē izmantota datorprogramma „Work Positive”, psiholoģiskā klimata noteikšana darba vietā, Somijas 5 baļļu matrica, bet darbspēju noteikšanā – darbspēju indekss. Rezultāti parāda, ka dažādi psihosociālās darba vides faktori rada būtisku risku nodarbināto drošībai un veselībai un tiem ir saistība ar nodarbināto darbspējām, veselības pašvērtējumu un veselības paradumiem.„Psychosocial risks at work and relationship with the work ability and health habits of the call centres employees”. Author: Sarmīte Rūtiņa-Rūtenberga. Supervisor: associate profesor, Dr.Med Ženija Roja. There are 117 pages in the master thesis, including 45 figures, 13 tables, 9 annexes and 46 literature references. It is determinated in the literature analysis that psychosocial risks have several effects on the employees’ safety and health. For psychosocial risks assessment the methods like software “Work Positive”, evaluation of the psychological climate at the workplace and Finnish 5 grade method are used. The Work Ability Index is used for the determination of the work ability. Psychosocial factors at work cause essential risk for the employees’ safety and health and have association with the work ability, the health self – assessment and health habits
Ergonomic risk effects on spinal health problems and preventive measures Ltd „BX"
No full textErgonomisko risku ietekme uz muguras veselības problēmām un preventīvie pasākumi SIA „BX”. Autore: Inguna Roze. Darba vadītāja: Dr.med., as.profesore Ženija Roja. Maģistra darbs, 92 lappuses, 57 attēli, 26 tabulas, 32 literatūras avoti, 2 pielikumi. Latviešu valodā.
Darbā ir pētīta ergonomisko risku ietekme uz muguras veselību un izstrādāti preventīvi pasākumi. Darbā veikta nodarbināto aptauja, slodzes analīzei lietota Slodzes galveno rādītāju metode SGR-A (smaguma celšana un pārvietošana), Slodzes galveno rādītāju metode SGR-B (smaguma vilkšana un stumšana), Slodzes galveno rādītāju metode SGR-C (biežas darbības ar rokām).
Secināts, ka veselības aprūpē nodarbinātie pakļauti piespiedu darba pozām un fiziskām pārslodzēm, rezultātā nodarbinātie veselības aprūpē cieš no muguras sāpēm un ar to saistītām saslimšanām. Izstrādāti preventīvie pasākumi.
VESELĪBAS APRŪPE, FIZISKA SLODZE, PIESPIEDU POZAS, MUGURAS SĀPES, PSIHOEMOCIONĀLS.The effects of ergonomic risks on spinal health problems and preventive measures Ltd “BX”. Author: Inguna Roze. Adviser: assoc. prof. Ženija Roja, MD. Master’s thesis, 92 pages, 57 images, 26 tables, 32 literature sources, 2 appendixes. In Latvian.
In the research, effects of ergonomic risks on spinal health problems are studied and preventive measures developed. Employee survey was carried out during the research, Key Indicator Method KIM-A (lifting and carrying loads), Key Indicator Method KIM-B (pulling and pushing loads), Key Indicator Method KIM-C (frequent manual handling operations).
It was concluded that health care workers are subjected to forced work postures and physical overload, therefore health care workers are suffering from back pain and related illnesses. Preventive measures were developed.
HEALTH CARE, PHISYCAL LOAD, FORCED POSTURES, BACK PAIN, PSIHOEMOTIONAL
Physical work environment risk factors for airline crew members and the relevance with psycho-emotional load
No full text„Fizikālie darba vides riska faktori gaisa kuģu apkalpē nodarbinātajiem un to saistība ar psihoemocionālo slodzi”. Darba autore: Anete Boitmane. Darba zinātniskā vadītāja: asoc. prof., Dr.med. Ženija Roja. Maģistra darbs izklāstīts uz 126 lpp., ietver 30 attēlus, 21 tabulu, 11 pielikumus, 58 informatīvos avotus. Pētījums sastāv no 4 daļām. Pirmajā daļā ir apkopota un analizēta literatūra par gaisa kuģa apkalpes profesiju, kā arī fizikālajiem riskiem un psihoemocionālo slodzi. Literatūras analīze uzrāda, ka gaisa kuģa apkalpē nodarbināto ikdienā pastāv cieša saskare fizikālajiem riskiem ar psihoemocionālo slodzi. Otrajā daļā aprakstītas pētījumā lietotās metodes, bet trešajā daļā tiek apkopoti pētījumā iegūtie dati un izklāstīta rezultātu analīze. Izstrādāti preventīvie pasākumi. Pētījumā iegūtie rezultāti ļauj secināt, ka pastāv statistiski nozīmīgas sakarības starp fiziklālajiem riskiem un psihoemocionālo slodzi, Nasa-tlx indekss uzrāda paaugstinātu frustrācijas līmeni, savukārt ar Somijas 5 baļļu metodi II riska pakāpe troksnim un psihoemocionālajam riskam. Uzrakstītas praktiskās rekomendācijas. Izmantotās metodes: autores izveidotas aptaujas anketas, matemātiskā statistika ar SPSS, Somijas 5 baļļu metode, NASA-TLX indekss.„Physical Work Environment Risk Factors for Airline Crew Members and the Relevance with Psycho-Emotional Load”. Author: Anete Boitmane. Scientific director: asoc. prof., Dr.med. Ženija Roja. Master’s thesis contains of 126 pages, 30 pictures, 21 charts, 11 attachments, 58 literature sources. Thesis research consists of 4 parts. In the first part literature about physical risks and psychoemotional load is gathered and analysed. In the second part used researcg methods are overlooked, in the third part research data and research analysis is discussed. Preventive measures and practical recommendations are developed. Research results show a statistical connection between physical risks and psychoemotional load, Nasa-Tlx index reports elevated frustration levels, II level risk for noise and psychoemotional risk using Finland’s five-point matrix. Used methods: survey made by the author, mathematical statistics with SPSS, Finland’s five-point matrix, NASA-TLX task load index
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