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  • 1158051. YinPing, Zhang
    et al.
    BaiZhan, Li
    Chen, Huang
    Xu, Yang
    Hua, Qian
    QiHong, Deng
    ZhuoHui, Zhao
    AnGui, Li
    JiaNing, Zhao
    Xin, Zhang
    Fang, Qu
    Yu, Hu
    Qin, Yang
    Juan, Wang
    Ming, Zhang
    Fang, Wang
    XiaoHong, Zheng
    Chan, Lu
    ZhiJian, Liu
    YueXia, Sun
    JinHan, Mo
    YiLi, Zhao
    Wei, Liu
    TingTing, Wang
    Norbäck, Dan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
    Bornehag, Carl-Gustaf
    Sundell, Jan
    Ten cities cross-sectional questionnaire survey of children asthma and other allergies in China2013In: Chinese Science Bulletin, ISSN 1001-6538, E-ISSN 1861-9541, Vol. 58, no 34, p. 4182-4189Article in journal (Refereed)
    Abstract [en]

    Asthma, rhinitis and eczema (allergic or non-allergic) have increased throughout the world during the last decades, especially among children. Changes in the indoor environment are suspected to be important causes. China has experienced a dramatic change in indoor environmental exposures during the past two decades. However, such changes and their associations with children's asthma and other health aspects have not been thoroughly studied. China, Children, Homes, Health (CCHH), Phase I, was a cross-sectional questionnaire survey of 48219 children 1-8 years old in 10 Chinese cities during 2010-2012. The questionnaire includes the International Study of Asthma and Allergies in Childhood (ISAAC) core health questions and additional questions regarding housing, life habits and outdoor environment. In health analyses, children aged 3-6 years old were included. The prevalences of doctor diagnosed asthma varied from 1.7% to 9.8% (mean 6.8%), a large increase from 0.91% in 1999 and 1.50% in 2000. The prevalence of wheeze, rhinitis and atopic eczema (last 12 months) varied from 13.9% to 23.7%, 24.0% to 50.8% and 4.8% to 15.8%, respectively. Taiyuan had the lowest prevalences of all illnesses and Shanghai the highest, except for wheeze-where the highest value was for Urumqi. We found (1) no obvious association between disease prevalences and ambient PM10 concentrations and (2) higher prevalences of disease in humid climates with hot summers and cold winters, but with no centrally heated buildings. Associations between the diseases and economic status as indexed by Gross Domestic Product (GDP) requires further study.

  • 1158052.
    Yinru, Chen
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science.
    Protection profile analysis and security target for an intrusion detection system2003Licentiate thesis, monograph (Other academic)
    Abstract [en]

    The main aim of the thesis is to analyze the Intrusion Detection System System Protection Profile that is used to identify the lowest common set of security functional and assurance requirements addressed by an Intrusion Detection System. Furthermore, the thesis outlines a possible Security Target for an Intrusion Detection System that can be used to express the security requirements for a specific product or system. In order to achieve these ends, the work is carried out by firstly creating a general security requirement framework for an Intrusion Detection System, which is done through examining research efforts on standardizing intrusion detection systems, investigating other academic studies on securing an Intrusion Detection System, choosing some intrusion detection system products on the open market and exploring their technologies applied in securing an Intrusion Detection System. Secondly, based on the general security requirement model produced by theoretical analysis and practical implementations, together with the functional and assurance requirements provided by the Common Criteria, to inspect and analyze the Intrusion Detection System System Protection Profile. Thirdly, discussions of implementations of security requirements in the Security Target for an Intrusion Detection System are mainly built on the information provided by available products. The results of the work are propositions, extensions and improvements based on the Intrusion Detection System System Protection Profile. The guidance of the Security Target is described and there is also a discussion of its pragmatic feasibilities. The work is expected to contribute to the field of standardizing Intrusion Detection Systems.

  • 1158053. Yinru, Chen
    et al.
    Diao, Kegang
    Orci, Istvan
    Åström, Mats
    Normalizing security audit data in XML-format2004Report (Other academic)
    Abstract [en]

    The analysis of log data can be extremely difficult for an administrator due to a large volume of log data with various formats from a number of different sources. It is also impossible to get a more precise view of the network security without aggregating and correlating log data generated by different defending systems and tools. The paper described is to establish an intermediate and platform-independent representation to which all security log data can be normalized to. The work presented here is only a part of an ongoing project that aims at detecting intrusions by utilizing data-mining techniques. In this paper, the log format normalized is proposed and implemented in XML format. This XML log format is not only flexible, extensible and heterogeneous; it also satisfies the other requirements, such as being convenient and easy to share, transfer, and store among different computer systems. It is anticipated that the XML log format will facilitate further research work in intrusion detection.

  • 1158054. Yinru, Chen
    et al.
    Åström, Mats
    Wang, Li-hong
    Session comparison measurement and learning in masquerading detection2004Report (Other academic)
    Abstract [en]

    In applying command sequence matching to detect masquerading attack, the first important step is to build a user's profile for characterizing normal behavior. In this paper, we proposed a new approach which applies the comparison of arbitrary length of sessions to distinguish users. In this approach, a session is regarded as an integral comparison unit. This method makes it possible to locate command matches in historical command data for long sequences. The testing results show that the method can be used in creating a user's profile. Further, it will pave the road for future work in applying data mining technology to detect potential masqueraders.

  • 1158055.
    YINYIN, WANG
    University of Borås, Swedish School of Textiles.
    Consumer Behavior Characteristics in Fast Fashion2011Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Currently there is a lack of research in fast fashion consumer behaviors both in academicand marketing aspects. This research addresses the fast fashion consumer behaviorcharacteristics, and analyzes the how general consumer behavior theories apply to fastfashion consumer behavior, and what the underlying causes that form the behaviors. Theanalyses are based on combination and comparison of conventional consumer behaviortheories, empirical basis that is found from questionnaires conducted in Sweden, and brandsstudies on H&M, Ginatricot and Zara. The main results from the analyses are respectivelyobtained in 3 main terms: Decision making process and involvement, Individual differences,and Group influences. The three aspects try to cover the main topics according to generalconsumer behavior theories. And the outcome is further developed into marketingimplication, also offering ideas for further research.

  • 1158056.
    Yiou, Gong
    et al.
    Linköping University, Department of Management and Engineering, Business Administration.
    Shaolin, Ye
    Linköping University, Department of Management and Engineering, Business Administration.
    Employee Satisfaction Management on Job‐related Stress: The mechanism between middle level manager’s leadership and knowledge worker’s autonomy2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: Resource-based view emphasizes that the competitive advantage of organization is built on two elements: resources and capabilities/competences, which are related to employees within it. And job-related stress is a phenomenon in workplace and a problem in employee satisfaction management.

    Aim: How are decision-making latitude in terms of autonomy, as the need of knowledge worker, and his/her job-related stress related? How is knowledge worker autonomy affected by middle level manager’s authority? What is the mechanism between middle level manager’s leadership and knowledge worker’s stress?

    Definitions: Stress: the overall transactional process; Stressors: the events or properties of events (stimuli) that are encountered by individuals; Strain: the individual’s psychological, physical and behavioral responses to stressors; Outcomes: the consequences of strain at both the individual and the organizational levels.

    Completion & Results: The mechanism among elements in and between knowledge worker and middle level manager is identified and presented.

  • 1158057. Yip, Benjamin H
    et al.
    Björk, Camilla
    Lichtenstein, Paul
    Hultman, Christina M
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, Ulleråker, University Hospital.
    Pawitan, Yudi
    Covariance component models for multivariate binary traits in family data analysis2008In: Statistics in Medicine, ISSN 0277-6715, E-ISSN 1097-0258, Vol. 27, no 7, p. 1086-1105Article in journal (Refereed)
    Abstract [en]

    For family studies, there is now an established analytical framework for binary-trait outcomes within the generalized linear mixed models (GLMMs). However, the corresponding analysis of multivariate binary-trait (MBT) outcomes is still limited. Certain diseases, such as schizophrenia and bipolar disorder, have similarities in epidemiological features, risk factor patterns and intermediate phenotypes. To have a better etiological understanding, it is important to investigate the common genetic and environmental factors driving the comorbidity of the diseases. In this paper, we develop a suitable GLMM for MBT outcomes from extended families, such as nuclear, paternal- and maternal-halfsib families. We motivate our problem with real questions from psychiatric epidemiology and demonstrate how different substantive issues of comorbidity between two diseases can be put into the analytical framework.

  • 1158058.
    Yip, Eugene
    et al.
    University of Auckland.
    Kuo, Matthew M Y
    University of Auckland.
    Roop, Partha S
    University of Auckland.
    Broman, David
    University of California, Berkeley and Linköping University.
    Relaxing the Synchronous Approach for Mixed-Criticality Systems2014In: Proceedings of the 20th IEEE Real-Time and Embedded Technology and Application Symposium (RTAS), IEEE conference proceedings, 2014, p. 89-100Conference paper (Refereed)
    Abstract [en]

    Synchronous languages are widely used to design safety-critical embedded systems. These languages are based on the synchrony hypothesis, asserting that all tasks must complete instantaneously at each logical time step. This assertion is, however, unsuitable for the design of mixed-criticality systems, where some tasks can tolerate missed deadlines. This paper proposes a novel extension to the synchronous approach for supporting three levels of task criticality: life, mission, and non-critical. We achieve this by relaxing the synchrony hypothesis to allow tasks that can tolerate bounded or unbounded deadline misses. We address the issue of task communication between multi-rate, mixed-criticality tasks, and propose a deterministic lossless communication model. To maximize system utilization, we present a hybrid static and dynamic scheduling approach that executes schedulable tasks during slack time. Extensive benchmarking shows that our approach can schedule up to 15% more task sets and achieve an average of 5.38% better system utilization than the Early-Release EDF (ER-EDF) approach. Tasks are scheduled fairer under our approach and achieve consistently higher execution frequencies, but require more preemptions.

  • 1158059. Yip, G. W.
    et al.
    Zhang, Y.
    Tan, P. Y.
    Wang, M.
    Ho, P. Y.
    Brodin, Lars-Åke
    Sanderson, J. E.
    Left ventricular long-axis changes in early diastole and systole: impact of systolic function on diastole2002In: Clinical Science, ISSN 0143-5221, E-ISSN 1470-8736, Vol. 102, no 5, p. 515-522Article in journal (Refereed)
    Abstract [en]

    Impaired long-axis motion is a sensitive marker of systolic myocardial dysfunction, but no data are available that relate long-axis changes in systole with those in diastole, particularly in subjects with diastolic dysfunction and a 'normal' left ventricular (LV) ejection fraction. A total of 311 subjects (including 105 normal healthy volunteers) aged 20-89 years with variable degrees of systolic function (LV ejection fraction range 0.15-0.84) and diastolic function were studied using tissue Doppler echocardiography and M-mode echocardiography to determine mean mitral annular amplitude and peak velocity in systole and early and late diastole. The LV systolic mitral annular amplitude (S-LAX, where LAX is long-axis amplitude) and peak velocity (S-m) correlated well with the respective early diastolic components (E-LAX and E-m) and late diastolic (atrial) components (A(LAX) and A(m)). A non-linear equation fitted better than a linear relationship (non-linear model: S-LAX against E-LAX, r(2) = 0.67; S-m against E-m, r(2) = 0,60; S-LAX against A(LAX) and S-m against A(m), r(2) = 0.42), After adjusting for age, sex and heart rate, linear relationships of early diastolic (E-LAX, r(2) = 0.70; E-m, r(2) = 0.60) and late diastolic (A(LAX), r(2) = 0.61; A(m), r(2) = 0.64) long-axis amplitudes and velocities with the respective values for S-LAX and S-m were found, even in those subjects with apparently 'isolated' diastolic dysfunction. Long-axis changes in systole or diastole did not correlate with Doppler mitral velocities. We conclude that ventricular long-axis changes in early diastole are closely related to systolic function, even in subjects with diastolic dysfunction. 'Pure' or isolated diastolic dysfunction is uncommon.

  • 1158060.
    Yip, Kitty
    Linnaeus University, Faculty of Science and Engineering, School of Computer Science, Physics and Mathematics.
    Exploring Barriers to Knowledge Sharing: A Case Study of a Virtual Community of Practice in a Swedish Multinational Corporation2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis reports on the results of a quantitative study of various barriers to knowledge sharing in a virtual community of practice within Sigma Kudos, a Swedish multinational organization. The study was undertaken to investigate the under-utilization of a virtual "teamroom". Members' views showed that the biggest barrier involved the way in which people chose to share their knowledge; the respondents preferred sharing knowledge in their existing face-to-face networks. Face-to-face sharing mainly seemed to occur between individuals who had a common ground and shared experiences, and between individuals who were in convenient proximity to each other. Time constraints in combination with perceived lack of intranet site structure implied a redundancy of the teamroom as yet another internal site. Another prominent set of barriers that emerged from the findings was related to aspects of uncertainty and unfamiliarity with the teamroom. Additionally, survey comments revealed the use of teamroom features to be a barrier. To enable co-evolved knowledge structures to occur via the community, it is necessary for management to understand face-to-face sharing behavior in terms of implicit and tacit knowledge. It is vital to change the perception of teamroom sharing as an extra task requiring more time. Moreover, the teamroom needs to be distinguished in context of the greater intranet structure, as well as when it comes to the different sections of the community itself. To foster knowledge sharing in the teamroom, it is also important to define and communicate the strategic meaning of it.

  • 1158061.
    Yip, Ngai Ming
    et al.
    City University of Hong Kong.
    Martinez, MiguelUppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Institute for Housing and Urban Research. Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Sociology.Sun, XiaoyiFudan University.
    Contested Cities and Urban Activism2019Collection (editor) (Refereed)
    Abstract [en]

    This edited volume advances our understanding of urban activism beyond the social movement theorization dominated by thesis of political opportunity structure and resource mobilization, as well as by research based on experience from the global north. Covering a diversity of urban actions from a broad range of countries in both hemispheres as well as the global north and global south, this unique collection notably focuses on non-institutionalised or localised urban actions that have the potential to bring about radical structural transformation of the urban system and also addresses actions in authoritarian regimes that are too sensitive to call themselves “movement”. It addresses localized issues cut off from international movements such as collective consumption issues, like clean water, basic shelter, actions against displacement or proper venues for street vendors, and argues that the integration of the actions in cities in the global south with the specificity of their local social and political environment is as pivotal as their connection with global movement networks or international NGOs. A key read for researchers and policy makers cutting across the fields of urban sociology, political science, public policy, geography, regional studies and housing studies, this text provides an interdisciplinary and international perspective on 21st century urban activism in the global north and south.

  • 1158062.
    Yip, Ngai Ming
    et al.
    City University of Hong Kong.
    Martinez, Miguel
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Institute for Housing and Urban Research. Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Sociology.
    Sun, Xiaoyi
    Fudan University.
    Introductory Remarks and Overview2019In: Contested Cities and Urban Activism / [ed] Yip, Ngai Ming, Martínez López, Miguel A., Sun, Xiaoyi, Palgrave Macmillan, 2019, 1, , p. 313p. 3-24Chapter in book (Refereed)
    Abstract [en]

    The notion of ‘urban activism’ holds an ambiguous status in both the fields of social movements and urban studies. It usually conflates the meanings of ‘urban movements’ and all sorts of activist practices that take place in cities. ‘Urban movements’ is the conventional expression to capture sustained mobilisations and protests that challenge consolidated power structures in relation to the production and transformation of urban spaces. When these collective actions are neither lasting over time nor sufficiently challenging the rulers and managers over the territory, it seems convenient to just designate them broadly as ‘activism’. Therefore, we argue that urban activism occurs within specific organisations not much coordinated with others, and when it is focused on single-issue demands and campaigns with limited duration and capacity to alter the deep roots of urban politics. Activists are engaged participants in collec-tive action as members of disparate groups who can turn into contributors to larger movements under certain circumstances. We elaborate on this distinction more accurately.

  • 1158063.
    Yipeng, Wang
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems.
    Implementation of the WirelessHART MAC Layer in the OPNET Simulator2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Industrial wireless sensor network (IWSN) is an application area of WSN used in industrial process monitoring and control with strict time and reliability requirement. WirelessHART standard is the first international standard for IWSN approved by International Electrotechnical Commission (IEC). This is worthwhile to implement this standard on simulator platform. Based on the study of WirelessHART standard, this thesis set up a primary implementation of the MAC layer of WirelessHART standard. To our best knowledge, this is the first comprehensive implementation of WirelessHART using OPNET simulator. The implementation has been evaluated rational. And some improvement of current implementation and standard have also been proposed and implemented. Flexible dedicated slot assignment has also been proposed to reduce the packet loss rate caused by influences of the physical channel. 

  • 1158064.
    YiPing, Jin
    et al.
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. Shanghai Second Polytechnic University.
    Long, Tao
    Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. Kungming University of science and technology.
    Boat Storage System2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nowadays, people have a boat of themselves become more and more popular. People use their boat for fishing trip and taking holiday. However, most of them do not want to take care of their boat by themselves. One of the reasons might be the place of a boat occupied. Recently, a method has been used is to store boat on the Boat Hotel. They pay for the rent of a boat garage and also hire someone to take care of their boat. Place the boat on the boat shelf with several layers is the most common method. They use forklift to take in/out the boat when boat owner need use their boat. On the conditional of this situation, if we want to take a boat which is inside of boat shelf, then we need take all outside boat out.  It’s really an inefficiency way, so we need improve it.

    In this study, we aim to design a Boat Storage System based on the existing shelf and meet all requirement of existing boat. This system should be reliable, efficient, economic, operable and flexible.

    The main function of the Boat Storage System is to take in/off the boat more quickly and automatically and efficiently. The system is similar with the stereo parking garage. Which have a paternoster controlled by PLC program. Consider of the boat is heavier than the car. Our storage structure should be more stable.

    Our design only need one person to operate it. The whole process will cost few seconds. This building will be established in the water. Therefore, the owner only need to push the button and then the boat will be prepared in the water automatically.

    The modelling and assembly was designed in Autodesk Inventor 2017. This hardware circuit of PLC was drawn in AutoCAD. The software to design the PLC is GX Works 2. And we used ANSYS Workbench 17.2 to analysis the structure. The analysis will prove the structure is safety and strong enough. And the simulation will prove the system is possible. Our conclusion is that this system has a good future and general application in the market.

  • 1158065. Yi-Qing, C
    et al.
    Bjermer, L
    Frojd, Ö
    Nettelbladt, O
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Medical Sciences.
    Karlsson-Parra, A
    Department of Oncology, Radiology and Clinical Immunology.
    Henriksson, R
    Effects of IL-2 treatment on different compartments of the irradiated rat lung analysed by bronchoalveolar lavage and lung tissue morphology.1995In: Eur Respir J, Vol. 8, p. 1872-Article in journal (Refereed)
  • 1158066.
    Yiran, Zhou
    et al.
    Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.
    Yilei, Liu
    Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.
    The Challenges and Mitigation Strategies of Using DevOps during Software Development2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 1158067.
    Yirmidokuz, Pınar
    Jönköping University, School of Education and Communication.
    The Uniqueness of the Atelirista2018Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Documentation plays an important role in the organization of Swedish preschool provision. The collection and interpretation of documentation is typically expected to be conducted by preschool teachers. In the Reggio Emilia-inspired preschools, however, documentation which is termed as pedagogical documentation, is produced both by preschool teachers and atelieristas. Working with an atelierista for a project while creating the pedagogical documentation is an important component to build knowledge, which will provide an artistic and aesthetic perspective to the preschool teacher and the children. The aim of this study is to explore the unique contribution of the atelierista to pedagogical documentation practices in the Reggio Emilia-inspired Swedish preschools. In particular, this study focused on how and why collaborative work between the atelierista and the preschool teacher influences the pedagogical documentation. The data is gathered trought on semi-structured interviews with atelieristas and preschool teachers in two Reggio Emilia-inspired preschools in Sweden. The major question addressed is: What are the differences and similarities between the atelierista and the preschool teacher while producing the pedagogical documentation in the Reggio Emilia-inspired Swedish preschools? The findings showed that during the interviews the themes of the similarities are reported by the participants as, 1) ‘being equally responsible’ and 2) ‘working collaboratively’ for the purpose of making the learning process visible and the themes of the diffferences are reported as, 1) ‘utilizing the background differences’. Moreover, the findings reveal the importance of the atelierista’s role during the pedagogical documentation process through equally responsible collaborative work with the preschool teacher in a mutually trusting learning environment.

  • 1158068.
    Yishen, Gao
    Linköping University, Department of Culture and Communication.
    What Makes a Happy Marriage?: A Study of Choice in Four Jane Austen Novels2010Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The aim of this thesis was to show how important both the outward and inward factors are in decision-making process in relation to marriage in the four novels Sense and Sensibility, Emma, Pride and Prejudice and Mansfield Park. The argument was that all Austen’s novels revolve around the balance of all external and internal factors. Individual novels seem to focus more or less on specific factors.

    Chapter one deals with money factor in the novel Sense and Sensibility. Marianne Dashwood is a symbol with unworldly character that shows no  care about money. Unfortunately, her first love John Willoughby chooses a mercenary marriage over true love, and Marianne learns more prudence and realism. It is Elinor, who keeps a good balance between heart and head, which Austen highly praises in the novel. And her happy marriage with Edward Ferrars proves to be a right and wise choice.

    Chapter two, Emma, concerns the rank issue. Emma Woodhouse makes many mistakes in her match-making interference with Harriet Smith because of her class consciousness and superiority. Her wrong-doings are corrected by Mr. Knightley’s good judgment. On the whole, the novel discourages rejection of class boundaries, but we also see that people from different social class are also able to build a happy marriage, as long as there is equality of minds between them. Jane Fairfax and Frank Churchill prove this point.

    Chapter three and four turn to the inward factors. In Pride and Prejudice, the main focus, as shown in Jane and Frank’s case, is the equality of minds. The two good marriages between Elizabeth and Darcy, and her sister Jane and Bingley, are good examples. The other two female characters, Charlotte and Lydia fail in their choices. The former chooses a mercenary marriage, which only an outward factor, money, is concerned; and the latter a marriage built mainly on sexual attraction, which is onlyan inward factor, yet a wrong one. Thus, neither of them considers equality of minds with her husband, and they both end up in bad marriages.

    The last Mansfield Park chapter explains the importance of principle in marital choices. The Crawfords have everything but principle. They are intelligent, good-tempered, elegant and both show respect and affection to the cousins, but they do not have good moral judgments and the courage to act accordingly. Therefore, they do not deserve happy endings. In contrast, Fanny Price, who always keeps consistent principles, wins Edmund’s heart and respect, and ends with a happy life ever after.

    As a realistic novelist, all of these four Austen’s novels deal with realistic issues: money, rank, social status etc. With the in-depth reading and analysis, we realize that there are some romantic thoughts and imaginations in her realistic works. Austen understands the importance of fortune, there is financial security in either good or bad marriages in her novels. This is the social circumstances and trend at her time. But in all her good marriages, the characters value some other factors more. Austen’s ideal marriage consists of true affection, mutual admiration and respect, equality of minds and high moral and principles between a couple, which is not an easy thing to do back to pre-Victorian period. Those bad or less satisfactory marriages explain her disappointment in people who are too realistic and materialistic, or too unrealistic and too unworldly. It is also maybe the reason why she remains single through her entire life. Her expectation in marriage is higher than the social standards, which makes her at the same time a romantic novelist.

    To sum up, marriage must reflect the social and economical reality of the society. Only when there is a firm base can individual desires be  considerable. Money and rank are outward factors which cannot be totally neglected in marital choices. But equality of intelligence, minds and moral principles are more important to determine a happy marriage. These four are Austen’s deeply serious novels, in spite of all the satire, humour, wit and romance portrayed in them.

    It is worth noting that these particular conditions belong to Austen’s time, but the theme of choice of spouse is universal. Every individual must find one balance between the demands of society, and his or her own desires, emotions and hopes. Hence readers are able to both learn from and enjoy Jane Austen’s novels.

    Anyhow, realistic or romantic, those factors mentioned in Austen’s novel are also relevant to people’s marital choices in modern society. Many of her good points are still referred to nowadays. This, together with her light humor and witty words, are the reason why there are so many ‘Janeites’ in the world, and why she still occupies a high place in English and world literature.

  • 1158069.
    Yissa Dawde, Oumer
    KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
    Wind Resource Data Analysis: The case of MYDERHU project site, Tigray regional state, Ethiopia2013Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Ethiopia is a developing country and its major primary energy consumption is largely covered by biomass and imported fossil fuels. Reliability of electricity supply varies widely across Ethiopia. Currently 65% of the population does not have access to electricity; 30 % of those without electricity live in village centers and 70% live in remote rural areas. However, the country is endowed with different renewable energy resources such as, hydro, wind, solar, geothermal and bioenergy. Wind energy is applicable for both power generation & water pumping applications for rural societies.

    The purpose of this study it to analyze the wind energy resource potential at Myderhu, to model the wind data with different statistical methods and software, selecting wind turbine class, forecast site wind energy & power density, develop site wind resource map, preliminary wind turbine micro siting, estimating farm annual energy production (AEP) and the expected cost of electricity. Based on the analysis and site survey, the site roughness and power exponent factors are classified as class I. Detailed wind resource data analysis is performed for the proposed site by using Excel, MatLab and WAsP software, based on a wind mast of 50m with an average wind speed of 7 m/s & mean power density of about 287 W/m2, this is categorized as a class-III wind resource (fair potential).

    Finally, wind resource mapping of 10km x 10km land area for a proposed wind farm is attempted at four different turbine hub heights of 30m, 50m, 80m and 100m. A supposed wind farm having 72 turbines with 82m rotor diameter at 80m hub height has been subjected to a simplified economy analysis by assuming investment costs of 1600 €/kW [38,400 birr/kW] and 1750 €/kW [42,000 birr/kW] and cost of energy estimated as 230.4 million € [5.53 billion birr], 0.028 €/kWhr [0.676 birr/kWhr] and 252 million € [6.05 billion birr], 0.031 €/kWhr [0.74 birr/kWhr] respectively. However, the Ethiopian FIT draft proclamation secure 0.073 €/kWhr [0.1 USD/kWhr] [1.75 birr/kWhr]. The calculation was done strictly by considering the power density at the site, and it didn’t address the issues of transportation and other installation related concerns and costs. Therefore, it is only applicable as a benchmark for future investigation work.

    As per this preliminary analysis the farm installed capacity is 144 MW, gross AEP is estimated about 593 GWhr, considering a wake loss of average 4.4% the net AEP is 567 GWhr and the average power density at the wind farm is estimated at 446 W/m2. The average capacity factor is estimated at 45%. The mean wind speed at hub height is 8.07 m/s. The Weibull shape factor (k) ranges from 2.8 to 3.3 with total average of 3.17.

  • 1158070.
    Yitayew Alemu, Abateneh
    KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.
    Survey of railway ballast selection and aspects of modelling techniques2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Previously great attention has been given for the quality of the track super structure to improve the overall performance of the railway. Frequent research on the track supporting materials shows a good result which improves the existing overall performance. Good ride quality with high speed, minimum initial construction capital, long life service and low maintenance cost are the issue on the railway technology. Ballast is one of the determinant parts of the railway structure which has great influence on the performance of the railway track.

    The aim of this project is to assess the different aspects which affect the overall performance on the ballast structure, its material characterization, gradation, failure modes and modelling techniques. Quality based ballast material characteristics investigation and proper selection of ballast gradation with proper modelling methods will lead to an economical, minimum defect, minimum maintenance and replacement cost.

     

     

  • 1158071.
    Yi-Ting, Lin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Molecular epidemiology. Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Dept Family Med, Kaohsiung, Taiwan.
    Chou, Mei-Chuan
    Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Dept Neurol, Kaohsiung, Taiwan;Kaohsiung Med Univ, Kaohsiung Municipal Ta Tung Hosp, Dept Neurol, Kaohsiung, Taiwan.
    Wu, Shyh-Jong
    Kaohsiung Med Univ, Dept Med Lab Sci & Biotechnol, Kaohsiung, Taiwan.
    Yang, Yuan-Han
    Kaohsiung Med Univ, Kaohsiung Med Univ Hosp, Dept Neurol, Kaohsiung, Taiwan;Kaohsiung Med Univ, Kaohsiung Municipal Ta Tung Hosp, Dept Neurol, Kaohsiung, Taiwan;Kaohsiung Med Univ, Fac Med, Dept Neurol, Kaohsiung, Taiwan;Kaohsiung Med Univ, Fac Med, Masters Program Neurol, Kaohsiung, Taiwan;Kaohsiung Med Univ, Neurosci Res Ctr, Kaohsiung, Taiwan.
    Galantamine plasma concentration and cognitive response in Alzheimer's disease2019In: PeerJ, ISSN 2167-8359, E-ISSN 2167-8359, Vol. 7, article id e6887Article in journal (Refereed)
    Abstract [en]

    Background

    Galantamine has been approved for the treatment of Alzheimer's disease (AD). However, there are few studies which have reported the association between cognitive responses and galantamine plasma concentration. The aim of this study was to determine the correlation between galantamine plasma concentration and the subsequent cognitive response following treatment in AD patients.

    Methods

    ADsufferers who continuously took 8 mg/d galantamine for at least 6 months without previous exposure to other kinds of AChEI such as donepezil, rivastigmine, or memantine were included in this cohort study. The assessments included the Mini Mental Status Examination (MMSE), Clinical Dementia Rating Scale (CDR) and the Cognitive Assessment Screening Instrument (CASI). Each subdomain of the CASI assessment was conducted at baseline and after 6 months of galantamine. The plasma concentrations of galantamine were measured by capillary electrophoresis after 6 months of the treatment. Logistic regression was performed to adjust for age, gender, apolipoprotein E epsilon 4 genotype status, and baseline score to investigate the association between galantamine plasma concentrations and the cognitive response.

    Results

    The total sample consisted of 33 clinically diagnosed AD patients taking galantamine 8 mg/d for 6 months. There was no linear correlation between galantamine concentration and cognitive response in patients. However, 22 patients were responsive to the treatment in the long-term memory domain. In CASI subset domain, concentration improved during the 6 months follow up.

    Conclusions

    In the limited samples study, galantamine mostly benefitted the cognitive domain of long-term memory. The benefits were not related to the galantamine plasma concentration. Objective intra-individual evaluation of therapeutic response should be encouraged.

  • 1158072.
    Yi-Ting, Lin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiology.
    Fall, Tove
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Molecular epidemiology.
    Gustafsson, Stefan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Molecular epidemiology.
    Ingelsson, Erik
    Stanford Univ, Sch Med, Dept Med, Div Cardiovasc Med, Stanford, CA 94305 USA.
    Arnlov, Johan
    Karolinska Inst, Dept Neurobiol, Div Family Med & Primary Care, Stockholm, Sweden.
    Lind, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Epidemiology.
    Engström, Gunnar
    Lund Univ, Dept Clin Sci, Cardiovasc Epidemiol, Lund, Sweden.
    Sundström, Johan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiology.
    Use of Proteomics to Investigate Blood Pressure Progress in the Elderly2018In: Journal of Hypertension, ISSN 0263-6352, E-ISSN 1473-5598, Vol. 36, p. E115-E115Article in journal (Other academic)
  • 1158073.
    Yiting, Zhu
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Xinyu, Gong
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Kind of interventions and effects of them on foot ulcers of patients with diabetes: A descriptive literature review2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 1158074.
    Yiu, Andrew
    et al.
    Kings Coll London, Div Canc Studies, Canc Epidemiol Grp, London, England..
    Van Hemelrijck, Mieke
    Kings Coll London, Div Canc Studies, Canc Epidemiol Grp, London, England.;Karolinska Inst, Inst Environm Med, Unit Epidemiol, Stockholm, Sweden..
    Garmo, Hans
    Kings Coll London, Div Canc Studies, Canc Epidemiol Grp, London, England.;Reg Canc Ctr, Uppsala, Sweden..
    Holmberg, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Endocrine Surgery. Kings Coll London, Div Canc Studies, Canc Epidemiol Grp, London, England.;Reg Canc Ctr, Uppsala, Sweden..
    Malmström, Håkan
    Karolinska Inst, Inst Environm Med, Unit Epidemiol, Stockholm, Sweden..
    Lambe, Mats
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences. Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
    Hammar, Niklas
    Karolinska Inst, Inst Environm Med, Unit Epidemiol, Stockholm, Sweden.;AstraZeneca R&D, Molndal, Sweden..
    Walldius, Göran
    Karolinska Inst, Inst Environm Med, Unit Cardiovasc Epidemiol, Stockholm, Sweden..
    Jungner, Ingmar
    Karolinska Inst, Clin Epidemiol Unit, Dept Med, Stockholm, Sweden.;CALAB Res, Stockholm, Sweden..
    Wulaningsih, Wahyu
    Kings Coll London, Div Canc Studies, Canc Epidemiol Grp, London, England..
    Circulating uric acid levels and subsequent development of cancer in 493,281 individuals: findings from the AMORIS Study2017In: OncoTarget, ISSN 1949-2553, E-ISSN 1949-2553, Vol. 8, no 26, p. 42332-42342Article in journal (Refereed)
    Abstract [en]

    Objectives: Serum uric acid has been suggested to be associated with cancer risk. We aimed to study the association between serum uric acid and cancer incidence in a large Swedish cohort.

    Results: A positive association was found between uric acid levels and overall cancer risk, and results were similar with adjustment for glucose, triglycerides and BMI. Hazard ratio (HR) for overall cancer for the 4th quartile of uric acid compared to the 1st was 1.08 (95% CI: 1.05-1.11) in men and 1.12 (1.09 - 1.16) in women. Site-specific analysis showed a positive association between uric acid and risk of colorectal, hepatobiliary, kidney, non-melanoma skin, and other cancers in men and of head and neck and other cancers in women. An inverse association was observed for pulmonary and central nervous system (CNS) cancers in men and breast, lymphatic and haematological, and CNS malignancies in women.

    Materials and Methods: We included 493,281 persons aged 20 years and older who had a measurement of serum uric acid and were cancer-free at baseline in the AMORIS study. Multivariable Cox proportional hazards regression was used to investigate sex-specific quartiles of serum uric acid in relation to cancer risk in men and women. Analysis was further adjusted for serum glucose, triglycerides and, where available, BMI. Site-specific analysis was performed for major cancers.

    Conclusions: Altered uric acid levels were associated with risk of overall and some specific cancers, further indicating the potential role of uric acid metabolism in carcinogenesis.

  • 1158075.
    Yiu, Benjamin
    et al.
    Western Australian School of Mines, Kalgoorlie.
    Halim, Adrianus
    Western Australian School of Mines, Kalgoorlie.
    Selection of Haulage Fleet at Daisy Milano Gold Mine2014In: Mining Education Australia (MEA) Journal of Research Projects Review, ISSN 2203-529X, Vol. 3, no 1, p. 69-76Article in journal (Refereed)
    Abstract [en]

    In the underground mining industry, one of the long-term operational issues involves longer haulage routes as the mine gets deeper with the life of mine. This longer travel route has a great impact on the productivity and cost of the operation. Choosing the best haulage fleet will result in improved productivity and lower cost per tonne of material moved. For this reason, it has motivated Daisy Milano Gold Mine, owned by Silver Lake Resources, to analyse their current Toro 50 Plus trucks against the Atlas Copco MT5010 truck. During a three month trial of both haulage options, trucking parameters were collected from a specifically designed trucking plod.This research used a time motion study to perform productivity calculations and cost analysis of the two haulage options.Based on the assumptions made in this research, the conclusion is that the Atlas Copco MT5010 should be utilised as the preferred truck option at Daisy Milano. The Atlas Copco MT5010 has a higher average productivity of 254 tkm/hr tonnes kilometre per hour) compared to the Toro 50 Plus with an average productivity of 160 tkm/hr. In terms of cost ($ per tkm) the MT5010 is the cheaper option by over 35 per cent when compared to the Toro 50 Plus ($0.85 versus $1.31).

  • 1158076. Yiu, K. F. C
    et al.
    Chan, K. Y
    Grbic, Nedelko
    Blekinge Institute of Technology, School of Engineering, Department of Signal Processing.
    Nordholm, Sven
    A Hybrid Design Of Beamformers For Voice Control Devices2012In: Pacific Journal of Optimization, ISSN 1348-9151, E-ISSN 1349-8169, Vol. 8, no 3, p. 533-544Article in journal (Refereed)
    Abstract [en]

    In this paper, a new approach to designing beamformers for voice control device is proposed. It is well-known that under a strong near-field noise with low signal-to-noise ratios (SNR), the performance of speech recognition is deteriorated significantly. However, designing the beamformer for enhancing speech recognition is a slow process and might not be adapted easily to the changing noise environment. In order to lower the complexity of the design, we intend to exploit the combination of existing optimal beamformer designs, which can be implemented in parallel. These include the least-squares technique and the signal-to-noise ratio maximization technique. We show here that for a given pre-trained speech recognizer and for a finite set of speech commands, neither method has a satisfactory performance in speech recognition accuracy under very low SNRs. However, since the two techniques have different characteristics in speech distortion and noise suppression, we show that it is possible to enhance the speech recognition accuracy by combining these two optimal designs.

  • 1158077. Yiu, Ka Fai Cedric
    et al.
    Grbic, Nedelko
    Nordholm, Sven
    Teo, Kok Ley
    A hybrid method for the design of oversampled uniform DFT filter banks2006In: Signal Processing, ISSN 0165-1684 , Vol. 86, no 7, p. 1355-1364Article in journal (Refereed)
    Abstract [en]

    Subband adaptive filters have been proposed to speed up the convergence and to lower the computational complexity of time domain adaptive filters. However, subband processing causes signal degradations due to aliasing effects and amplitude distortions. This problem is unavoidable due to further filtering operations in subbands. In this paper, the problem of aliasing effect and amplitude distortion is studied. The prototype filter design problem is formulated as a multi-criteria optimization problem and all the Pareto optima are sought. Since the problem is highly nonlinear and nonsmooth, a new hybrid optimization method is proposed. Different prototype filters are used and their performances are compared. Moreover, the effect of the number of subbands, the oversampling factors and the length of prototype filter are also studied. We find that prototype filters designed via Kaiser or Dolph–Chebyshev window provide the best overall performance. Also, there is a critical oversampling factor beyond which the improvement in performance is not justified. Finally, if the length of the prototype filter increases with the number of subbands, an increase in the subband level will not deteriorate the performance.

  • 1158078. Yiu, Ka Fai Cedric
    et al.
    Grbic, Nedelko
    Nordholm, Sven
    Teo, Kok Ley
    Multicriteria Design of Oversampled Uniform DFT Filter Banks2004In: IEEE Signal Processing Letters, ISSN 1070-9908, E-ISSN 1558-2361, Vol. 11, no 6, p. 541-544Article in journal (Refereed)
    Abstract [en]

    Subband adaptive filters have been proposed to avoid the drawbacks of slow convergence and high computational complexity associated with time domain adaptive filters. However, subband processing causes signal degradations due to aliasing effects and amplitude distortions. This problem is unavoidable due to further filtering operations in subbands. In this letter, the problems of aliasing effect and amplitude distortion are studied. Prototype filters which are optimized with respect to those properties are designed and their performances are compared. Moreover, the effect of the number of subbands, the oversampling factors and the length of the prototype filter are also studied. Using the multicriteria formulation, all Pareto optimums are sought via the nonlinear programming technique. We find that the prototype filter designed via the Kaiser window provides the best overall performance among the methods we studied. Also, there is a critical oversampling factor beyond which the improvement of performance is diminishing. Finally, if the length of the prototype filter increases with the number of subbands, an increase in the number of subbands will not deteriorate the performance.

  • 1158079. Yiu, Ka Fai Cedric
    et al.
    Ho, Chun Hok
    Grbic, Nedelko
    Lu, Yao
    Shi, Xiaoxiang
    Luk, Wayne
    Reconfigurable Acceleration of Microphone Array Algorithms for Speech Enhancement2008Conference paper (Refereed)
    Abstract [en]

    Microphone arrays play an important role in noise reduction and speech enhancement. Their algorithms are based on beamforming, which reduces the level of localized and ambient noise signals while minimizing distortion to speech from the desired direction via spatial filtering. This paper describes a class of subband beamforming algorithms. The similarity between different algorithms is discussed. To enhance computational efficiency, the algorithms are implemented in frequency domain. A hardware architecture, with bitwidth optimization, is proposed to support the algorithms. An implementation with 7 instances on a Xilinx XC4VSX55 FPGA at 175MHz can run 41.7 times faster than the corresponding pure software implementation on a 3.2GHz Pentium 4 PC. ©2008 IEEE.

  • 1158080. Yiu, KFC
    et al.
    Gao, MJ
    Shiu, TJ
    Wu, SY
    Tran, Trung Quang
    Blekinge Institute of Technology, School of Engineering, Department of Signal Processing.
    Claesson, Ingvar
    Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
    A fast algorithm for the optimal design of high accuracy windows in signal processing2013In: Optimization Methods and Software, ISSN 1055-6788, E-ISSN 1029-4937, Vol. 28, no 4, p. 900-916Article in journal (Refereed)
    Abstract [en]

    This paper presents a new optimal window design method with a general window design specification for the passband and stopband. The design problem is formulated as a semi-infinite linear programming problem. With suitable discretizations, an exchange algorithm is employed. The convergence of the proposed algorithm is established. In the formulation, since the stopband is minimized, the method can be employed for the design of very highly optimized windows.

  • 1158081.
    Yiu, Man Ting
    Stockholm University, Faculty of Humanities, Department of English.
    “Are We What We Eat?” Negotiating Identities Through Cuisine and Consumption: A Thing Theory Approach to Alison Wong’s As The Earth Turns Silver2018Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    Culinary narratives are frequently employed to portray migrant identities and societies in Asian diaspora literature This thesis examines cuisine and consumption in Alison Wong’s As The Earth Turns Silver by highlighting the socio-political linkages between material culture and ethnic identity formation of Chinese migrants in New Zealand. Using Brown’s thing theory, food is reframed as site of meaningful discourse to interrogate the role of cuisine and consumption in mediating the migrant experience. It demonstrates the material and cultural importance of food in facilitating ethnic and political identification, transcultural exchange, and independence for frequently oppressed migrant individuals in diaspora literature.  Conversely, food functions as vectors of aggression in racialising the ethnic other by communicating artificial notions of morality, national identity, and purity to reinforce the hegemony. Additionally, culinary objects facilitate how characters articulate their dislocation and fragmentation as hybrid individuals. Finally, I undertake a craft analysis of Wong’s novel by drawing connections between Wong’s hybridity and her narrative design. I use thing theory to demonstrate how characters use culinary objects to negotiate hybridity while the application of transference technique reveals the way material objects are embedded with abstract emotions to communicate writer and character ethnic subjectivity. Findings from the critical analysis are applied to my short story collection Raw. Thing theory provides the theoretical framework for the practical application of transference in my creative thesis, demonstrating its efficacy in improving craft. The creative thesis demonstrates the applicability of theory in creative practice. Finally, it offers an analytical framework for contextualising food as a site of discourse for hybridized identity politics in diaspora literary criticism.

  • 1158082.
    Yiwen, Chen
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Languages, Department of Linguistics and Philology. Uppsala University.
    Generating Chinese Lyrics using Neural Networks with Lyric Patterns2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In this thesis, we explore lyrics generation as a subbranch of computational creativity.

    The dataset is comprised of 16,858 Chinese songs from 160 singers. Compared to the baseline which uses a character-level Recurrent Neural Network (RNN), we apply a sequence to sequence model with a bidirectional encoder and a decoder with attention mechanism. In addition, we introduce new standards to evaluate the quality of generated lyrics: lyricism,

    accuracy, singability and coherence. Two quality tests are included: human judgment and selecting which lyrics are written by human lyricists.

    In the evaluation, the average scores for our model perform better than the baseline in all standards. The average probability of a human judging lyrics generated by our model as created by a human is 17.23%.

  • 1158083.
    Yixing, Liu
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
    A Parallel Computing Implementation ofDynamic Programming and Its Application to anHEV2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Dynamic programming is a widely used optimal control method. This master thesis project aims to decrease the computation time of dynamic programming by parallel computing. A new dynamic programming Matlab function is developed by this master thesis project with applying the Matlab function fmincon optimization solver and parallel computing. Two case studies were solved both by the new programming and a widely used sequential program for dynamic programming. Appropriate analysis and discussion were presented based on the comparison between the performance of the new dynamic programming and the generic dynamic programming.

    This master thesis project also studied the hybrid eco car named Elba built by the KTH student group for the Shell Eco Car Marathon competition. In this master thesis project, a decentralized hierarchical predictive control architecture was used to control the powertrain of Elba car. The speed strategy and the related look-up table block were completed and integrated into the Elba car plant model in Simulink.

  • 1158084.
    Yiying, Chen
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Zhulian, Yang
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Self-regulated learning ability among undergraduate nursing students: A Cross-sectional study2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 1158085.
    Yiyuan, Shu
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Yan, Feng
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Women’s psychological experience of having unwanted abortion: A descriptive literature review2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 1158086.
    Yizhou, MO
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences.
    Hengxing, Hu
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences.
    Parents’ experiences of having a preterm infant: infant - A descriptive literature review2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 1158087. Ykman-Couvreur, C.
    et al.
    Lambrecht, J.
    Verkest, D.
    Catthoor, F.
    Svantesson, B.
    Hemani, Ahmed
    Wolf, F.
    Dynamic memory management methodology applied to embedded telecom network systems2002In: IEEE Transactions on Very Large Scale Integration (vlsi) Systems, ISSN 1063-8210, E-ISSN 1557-9999, Vol. 10, no 5, p. 650-667Article in journal (Refereed)
    Abstract [en]

    This paper presents a new methodology for dynamic memory management of embedded telecom network systems. This methodology enables the designer to further raise the abstraction level of the initial system specification and to achieve optimized embedded system designs. This methodology is well suited for systems characterized by a set of concurrent and dynamic processes, very high-bit-rate data streams, and intensive data transfer and storage, as encountered in telecom network applications. Up to now, it has been successfully applied to four telecom network systems. This methodology can be easily integrated into any C++-based system synthesis approach that bridges the gap between a concurrent process-level system specification and an optimized (for area, performance, or power) embedded implementation of communicating hardware/software processors. This is in contrast to current system design practice, where VHDL/C is derived without room for exploration, refinement, and verification, leading to expensive late design iterations. In this paper, the main focus lies on the system-level specification model and the dynamic memory management applied to two real-life telecom network systems.

  • 1158088.
    Ykman-Couvreur, Ch.
    et al.
    IMEC.
    Lambrecht, J.
    IMEC.
    Verkest, D.
    IMEC.
    Svantesson, Bengt
    KTH, School of Information and Communication Technology (ICT).
    Kumar, Shashi
    KTH, School of Information and Communication Technology (ICT), Electronic Systems.
    Hemani, Ahmed
    KTH, School of Information and Communication Technology (ICT), Electronic Systems.
    Wolf, F.
    Technische Universität Braunschweig.
    System exploration and synthesis from SDL of an ATM switch component1999In: ASIC/SOC Conference, 1999. Proceedings. Twelfth Annual IEEE International, 1999, p. 119-124Conference paper (Refereed)
    Abstract [en]

    We describe the complete hardware synthesis of an ATM switch component, characterized by concurrent and dynamic processes, very high bit-rate data streams, and intensive data storage and transfer. The methodology used to synthesize it bridges the gap between an SDL system specification and an optimized single-chip implementation of communicating hardware processors, that satisfies stringent constraints on area, performance, and power. The novelty of this methodology is that through stepwise exploration, and gradual incorporation of timing constraints, it supports new optimization methods in view of memory and concurrency management, and expensive late iterations are avoided

  • 1158089.
    Ylander, Erik
    et al.
    Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Business Administration.
    Palmgren, Robin
    Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Business Administration.
    The impact of FDI on market efficiency: A study about adaptive market efficiency in African frontier markets2015Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This paper examines the impact of Foreign Direct Investment (FDI) on the level of market efficiency over time in six African frontier stock markets. The countries examined are Botswana, Kenya, Mauritius, Morocco, Nigeria and Tunisia. The purpose of this study is to investigate what impact foreign investors’ capital contributions have on the level of market efficiency in six major frontier stock markets in Africa. To be able to identify periods of market efficiency and inefficiency we will analyze the results in the light of the Adaptive Market Hypothesis.

    To be able to answer the research question and fulfil the intended purpose three statistical tests will be conducted. Two Variance Ratio tests, namely the Chow Denning test (CD) and the multiple version of Wright’s sign test (JS) have been conducted to obtain measures of time-varying market efficiency. These measures of time-varying market efficiency have then been used separately as the dependent variables in a set of 6 different multiple panel regression analyses. Based on previous research we chose a set of six macroeconomic factors that could have an impact on market efficiency. These were then used as independent variables in the panel regression analysis.

    We found that FDI has no impact on the level of market efficiency when including all six countries in the regression model. However, re-performing the analysis on a reduced sample including only Kenya, Mauritius, Morocco and Tunisia we found that FDI is significant at the 5% level, i.e. higher FDI implies higher market efficiency. Considering this result, we strongly recommend African countries to relax FDI regulations.

  • 1158090.
    Ylander Mikkelsen, Kristoffer
    et al.
    Halmstad University.
    Geraldsson, Oskar
    Halmstad University.
    Optimization of Granulate 3D Printer: Focus on cooling2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The authors, Oskar Geraldsson and Kristoffer Ylander Mikkelsen, together with Svenska Konstruktörsbyrån AB, have customized and optimized a granulate 3D printer. The main goal for the authors is to improve the cooling of the liquid ABS plastic leaving the nozzle to prevent displacement and dislocation during the printing process. Furthermore the printers current state is poor resulting in further work regarding the overall mechanics of the printer such as the power supply, electrical motors and linear guides.

    The authors have studied existing 3D printers and searched through scientific articlesto get inspiration and knowledge of the mechanical process of the printers aswell as the materials.

  • 1158091.
    Ylander, Niklas
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Government.
    Urban Riots in Sweden: Is there Continuity or Change in the Political Discourse?2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In the last ten years several violent protests have emerged in Sweden´s largest cities. Some of them have developed into real riots, resulting in burned cars and large police operations. These violent events, or ‘urban riots’, are a relatively new phenomenon in Sweden. The aim of this qualitative study is to investigate the structure of the discourse among the Swedish political elite in power. I will observe if the political discourse on disadvantaged areas in Sweden is characterized by continuity or change after urban riots. This study examines four urban riot cases, between 2005 and 2013. 

     

    To study how the political discourse is constructed, framing theory elements are combined with elements from discourse analysis. The characteristic features of the two framing dimensions are outlined which gives me a framework to categorize the political discourse. The two dimensions are; diagnostic and prognostic frames. The discourse analytical elements are used in order to systemize who is included in the political discourse by the political elite in power. A discourse analysis is then conducted on the collected empirical material, which consists of newspaper articles and parliamentarian debates from the Swedish parliament.

     

    The results from the analysis suggest that the disadvantaged districts are not salient both before and after the riots among the political elite in power, except for the last case. In this case the riot as such has no observable ‘effect’ on political discourse about disadvantaged districts. The political actors tend to separate riots as events from the disadvantaged districts. The last riot did not change how the government defined the problem in the suburbs and how it should be solved. In all cases the political discourse has a strong divide between the state and the inhabitants in the suburbs. The state acts and residents are acted upon.    

  • 1158092.
    Yletyinen, Johanna
    Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology (INK).
    Holocene Climate Variability and Cultural Changes at River Nile and Its Saharan Surroundings2009Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
  • 1158093.
    Yletyinen, Johanna
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Structural changes in marine ecosystems – the application of novel network approaches to understand marine regime shift2014Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Anthropogenic drivers, such as climate change and fishing, have severe, often unexpected impacts on marine ecosystems. Species responses to drivers may have cascading effects through ecological communities, potentially changing the structure and functioning of the food web. The aim of this thesis is to examine how the structure and functioning of marine food webs change over time and space when exposed to perturbation. Applying novel structural network analysis tools, I studied changes and consequences of marine regime shifts in a regional (Baltic Sea) and global context.

    The study of ecological network analysis indicators on the long-term food web dynamics describes the late-1980s abrupt regime shift as well as two topologically different food web states in the central Baltic Sea. However, using a larger food web and examining the change in ecological functioning as represented by motifs in Exponential Random Graph Modeling (ERGM), no change in dominant ecological processes was found in the central offshore Baltic Sea region, despite the food web reorganization. On the contrary, the study suggests that the coastal region is currently significantly altered. These results expand the knowledge of the Baltic Sea food web responses to major drivers and show the role of the coastal zone as the interface ecosystem between land and sea, indicating potentially increased vulnerability to functional change in the offshore Baltic Sea.

    The global analysis on the co-occurrence of drivers potentially causing regime shifts identifies three clusters of drivers primarily responsible for all marine regime shifts. The findings indicate sets of drivers that should be prioritized in management through coordinated actions across multiple scales, and support the notion that sets of ecosystem services change simultaneously.

    Examining the impacts of large-scale changes in marine systems from the perspective of network science, this thesis argues that marine resource management needs to account for multiple stressors and their synergistic effects on species interactions in an ecosystem context so that marine resources can support ecosystem services for the future. 

  • 1158094.
    Yletyinen, Johanna
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    The Impact of Multiple Drivers on Marine Systems: Novel approaches for studying structural changes2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Human action is transforming the species composition, biogeochemistry and habitats of the world’s oceans at unprecedented rates. The cumulative effect of natural and anthropogenic drivers is challenging to measure, in part due to indirect effects and the complexity of marine systems. Building on the theory of complex adaptive systems, this thesis aims to increase our understanding of how complex, heterogeneous marine social-ecological systems (SES) may respond to changing conditions. This thesis integrates resilience research with network science and describes change and structural patterns at several SES scales in order to advance our knowledge on the effects of multiple drivers.

    Paper I proposes a new, quantitative fish stock collapse definition, that accounts for fish stock dynamics and enables standardization and thus comparability across a large number of commercial fish stocks. Recognizing that substantial ecosystem changes are part of SES dynamics, in Paper II we review marine regime shifts worldwide to specify how co-occurring bundles of drivers are related to degraded ecosystem services for management purposes. A more detailed ecological study on regime shifts was performed in Papers III and IV. Paper III describes the late-1980s central Baltic Sea regime shift based on a food-web model. Paper IV uses a novel structural network analysis approach to detect functional shifts in complex food webs. The results of Paper IV imply that the Baltic Sea regime shift may not be a systemwide shift. Paper V uses a network approach to analyze fishing strategy diversification and social-ecological connectivity among Swedish Baltic Sea fishers, indicating that natural resource management evaluations should not be limited only to ecosystem conditions but also take account of social conditions.

    Overall, this thesis provides empirical evidence for the emerging perspective that marine resource science and management must account for the complexity of system elements in order to ensure the provision of ecosystem services in the future. The first application of Exponential Random Graph Modeling in ecology and an improved fish stock collapse definition provide new advanced tools for studying oceans from an SES perspective in the future.

  • 1158095.
    Yletyinen, Johanna
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Bodin, Örjan
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Weigel, Benjamin
    Nordström, Marie C.
    Bonsdorff, Erik
    Blenckner, Thorsten
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Regime shifts in marine communities: a complex systems perspective on food web dynamics2016In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 283, no 1825, article id 20152569Article in journal (Refereed)
    Abstract [en]

    Species composition and habitats are changing at unprecedented rates in the world's oceans, potentially causing entire food webs to shift to structurally and functionally different regimes. Despite the severity of these regime shifts, elucidating the precise nature of their underlying processes has remained difficult. We address this challenge with a new analytic approach to detect and assess the relative strength of different driving processes in food webs. Our study draws on complexity theory, and integrates the network-centric exponential random graph modelling (ERGM) framework developed within the social sciences with community ecology. In contrast to previous research, this approach makes clear assumptions of direction of causality and accommodates a dynamic perspective on the emergence of food webs. We apply our approach to analysing food webs of the Baltic Sea before and after a previously reported regime shift. Our results show that the dominant food web processes have remained largely the same, although we detect changes in their magnitudes. The results indicate that the reported regime shift may not be a system-wide shift, but instead involve a limited number of species. Our study emphasizes the importance of community-wide analysis on marine regime shifts and introduces a novel approach to examine food webs.

  • 1158096.
    Yletyinen, Johanna
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Butler, Will
    Ottersen, Geir
    Andersen, Ken H.
    Bonanomi, Sara
    Diekert, Florian K.
    Folke, Carl
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Lindegren, Martin
    Nordström, Marie C.
    Richter, Andries
    Rogers, Lauren
    Romagnoni, Giovanni
    Weigel, Benjamin
    Whittington, Jason D.
    Blenckner, Thorsten
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Stenseth, Nils C.
    When is a fish stock collapsed?Manuscript (preprint) (Other academic)
  • 1158097.
    Yletyinen, Johanna
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre. University of Canterbury, New Zealand.
    Hentati-Sundberg, Jonas
    Blenckner, Thorsten
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Bodin, Örjan
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Fishing strategy diversification and fishers' ecological dependency2018In: Ecology & society, ISSN 1708-3087, E-ISSN 1708-3087, Vol. 23, no 3, article id 28Article in journal (Refereed)
    Abstract [en]

    Sustainable fisheries management plays a critical role in supporting healthy marine ecosystems and the livelihoods of millions of people. An emerging view on fisheries management emphasizes the need to manage fisheries as complex social-ecological systems. Yet, our understanding of the outcomes of fisheries management from a social-ecological perspective is limited in comparison to that provided by either the biophysical or the social perspective alone. In the Baltic Sea, management interventions focused on ecosystem recovery contributed to unintended changes from 1996 to 2009 in the fishing strategy diversity practiced by Swedish fishers. We evaluate how the changes in strategy diversification affected the capacity of Swedish fishers to adapt to future ecosystem changes. To do this, we constructed and analyzed social-ecological fisheries networks. Our analysis confirmed the previously reported development of a narrower combination of fishing strategies among large-scale fishers, parallel with a diversification in small-scale fishers' strategies. However, the results demonstrated that switching fishing strategies has, in fact, increased in magnitude, and the fishers were more equally distributed in different fishing strategies in 2009 than in 1996. Further, we detected a development toward lower ecological dependency between fishing strategies within the community, although the strategies remained connected through ecological interactions. In conclusion, our analysis of the social-ecological interdependencies suggests that the previously reported changes in the fishing strategy diversity increased the adaptability of the Swedish Baltic Sea fishers to changing ecological conditions. On the other hand, the changes may have made the Baltic Sea more vulnerable to poor management. This empirical study emphasizes the importance of a social-ecological approach on fisheries research and management. Our results show that appreciating the complexity and changing nature of fisher behavior is crucial when assessing fisheries management outcomes, and when designing policies that aim to maintain adaptability in the uncertain and dynamic fish industry.

  • 1158098.
    Yletyinen, Johanna
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Hentati-Sundberg, Jonas
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Blenckner, Thorsten
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Bodin, Örjan
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    How patterns of interactions between and among fishing strategies and targeted fish species affect adaptive capacity: an integrated analysis of the Baltic Sea fishery 1996-2009Manuscript (preprint) (Other academic)
  • 1158099. Yletyinen, Linnéa
    På lika villkor?: En undersökning av pedagogers bemötande av barn och elever ur ett genus- och jämställdhetsperspektiv2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 1158100. Yli, Jenni
    "Arbetslös resten av livet?": Om långtidsarbetslösa ungdomar i dagens samhälle2012Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The study was conducted in a small municipality in Norrbotten with about 17,000 inhabitants, where youth long-term unemployed have been investigated in order to describe and analyze the possibilities and opportunities young people have in their unemployment and how the act to get out of it. The analysis was based on the theoretical framework underlying the study, and the respondents' descriptions of their experiences regarding opportunities, conditions, cooperation with the employment service and their financial situation. The results show that young people perceive their situation as unemployed as both active and tense. They describe the active environment based on high standards, high self-control and good support, the tense environment is described by high demands, low self-control and low support. Factors that the youth experience as distressing is restlessness, that those who have jobs look down on them and that the health and wellness deteriorates. The possibilities that the respondents describe themselves having is to study, commute and/or move out of town. The limitations experienced by the respondents has a difference depending on their family situation, those adolescents who have family, children or a partner find it difficult to get from the town. Another limitation is experienced as a fear of losing the social contact network. The cooperation to the Employment Service is perceived generally as good, but there are opportunities for improvement in efforts to help young people to write their resumes and their cover letters where great difficulty is experienced. Furthermore, perceived a lack of guidance in the job search when the youth don´t know what or how they should highlight themselves in an eventual job interview with a potential employer. The economic stresses and lack of money is the most stressful factor. The fact that they in young adulthood are forced to be financially dependent on parents, family and their boyfriend felt difficult. Priorities among the expenditures is necessary to cope with the economic situation and unnecessary spending is unthinkable, which means that young people have to say no and abstain from things with friends and other amusements. The study shows that youth long-term unemployed are living in a vulnerable and stressful situation in which a connection to the previous research regarding illness exists, which should be important for the Employment Service to furthermore develop these ideas and keep in mind in working with and for youth.Keywords: Long-term unemployment, youth, opportunities, constraints, situation.

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