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  • 451.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Olsson, Hans
    Luleå tekniska universitet.
    Skänkskötare och traversförare vid skänkservicestationen SSAB Luleå: en enkätundersökning. Utvärdering av ny arbetsplats för skivtärningsservice ; delrapport 11990Report (Other academic)
  • 452.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Olsson, Hans
    Luleå tekniska universitet.
    Slutrapport från projektet "Utvärdering av ny arbetsplats för skivtärningsservice"1993Report (Other academic)
  • 453.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Olsson, Hans
    Luleå tekniska universitet.
    Notsten, Johanna
    Luleå tekniska universitet.
    Organisationsförändringar inom massa- och pappersindustrin: idéer och lärdomar från sex förändringsprojekt1995Report (Other academic)
  • 454.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Parding, Karolina
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Learning gaps in a learning organization: professionals' values versus management values2009Conference paper (Refereed)
    Abstract [en]

    There is a rhetoric emphasising that if work organisations become "learning organisation", the needs for learning are provided for. This idea is permeating work organisations not the least in the public sector where welfare sector professionals work. However, through a study on teachers´working conditions it becomes apparent that even if the school organisation claims to be a learning organisation, learning gaps can be identified. The study reveals that the conditions for learning are not optimal, despite the fact that the organisation claims to be a learning organisation. The study points at a tension between different forms of knowledge, knowledge valued by the organisation and knowledge valued by the professionals. In this article we discuss the concept of "learning organisations", by focusing on professionals´ own experiences of conditions for learning.

  • 455.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Sederblad, Per
    Malmö högskola.
    Avslutning2013In: Lean i arbetslivet, Stockholm: College of Liberal Arts and Sciences, 2013, p. 317-325Chapter in book (Other academic)
  • 456.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Segerstedt, Eugenia
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Project: Mining and sustainable development - gender, diversity and work condition2014Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    Detta är ett delprojekt som handlar om den sociala dimensionen av hållbar utveckling (och då specifikt ”gender”, ”diversity” och ”work conditions”). Huvudprojektet "Mining and sustainable development" är en förstudie för att utveckla ett större forskningsprogram om hållbar utveckling i gruvindustrin. Förstudien gick under 2014 med finansiering från bl.a. LKAB. Patrik Söderholm (nationalekonomi) var projektledare. I arbetsgruppen ingick även Björn Öhlander, Frauke Ecke, Anders Widerlund, Roine Wiklund, Petter Hojem mfl.

  • 457.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Segerstedt, Eugenia
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Nygren, Magnus
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Johansson, Jan
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Johansson, Bo
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Edman, Ida
    Luleå tekniska universitet (student).
    Åkerlund, Amanda
    Luleå tekniska universitet (student).
    Mining and Sustainable Development: Gender, Diversity and Work Conditions in Mining2014Report (Other academic)
    Abstract [en]

    Swedish mining companies and surrounding mining communities face many challenges when it comes to social sustainable development. For example, a strong mining workplace culture and community identity can create both strong cohesion but also lead to exclusion of certain groups, rejection of new ideas and reinforce traditional, masculine values. Other challenges include recruitment, as well as health and safety in relation to an increased use of contractors and automation of mining. The social dimension is relatively underdeveloped in studies of sustainable development in general and the mining industry in particular. This report reviews research on social sustainable development and mining with a special focus on (1) diversity of lifestyles, (2) gender, and (3) work conditions. Swedish and international research is reviewed and knowledge gaps are identified. All three areas of research can be regarded as relatively mature and they give important contributions to ourunderstanding of social sustainable development in relation to the mining sector even if they not always explicitly refer to it as such. There is a lack of research that links attitudes, policies and activities within companies to their impact on the wider society, and vice versa. Future research should also include the development of methods and indicators for social sustainability relevant for mining.

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  • 458.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Somerville, Margaret
    University of New England.
    Changing storylines and masculine bodies in Australian coal mining organisations2007In: Norma, ISSN 1890-2138, E-ISSN 1890-2146, Vol. 2, no 1, p. 52-69Article in journal (Refereed)
    Abstract [en]

    In this article we are exploring gendered subjectivity and workplace change in male dominated industrial organizations. The empirical base is a study of Australian coal mining companies implementing new practices in workplace safety in underground coal mines. The starting point for the study was the mining companies' experiences of the continuing practical problem of translating training in safety into new and safe workplace practice in coal mining workplaces. Ethnographic interviews and observations were carried out in two parts, the first focussing on mine workers and second on safety and rescue trainers. We used the poststructural analytical concept of storylines (Sondergaard, 2002) and Butler's theorisation of gendered subjectivity to interpret the data. Our study found that practices of masculinity in local mining organizations are still strong, but there have been changes in the way masculinities are performed in the workplace. One characteristic of the new workplace culture is that the worker's body is becoming more important. Taking care of the body goes hand in hand with focusing on safety. This new kind of mine worker masculinity can therefore be seen as a way of handling the contradiction between storylines of the old hegemonic masculinity and the demands of safe work practices.

  • 459.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Somerville, Margaret
    University of New England.
    Contradictions in community of practice: trainers and learners in the mining industry2003In: Work and lifelong learning in different contexts: 3rd international Conference on researching work and learning, Tampere: University of Tampere, Department of Education , 2003Conference paper (Refereed)
  • 460.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Somerville, Margaret
    University of New England.
    Kolgruvearbete är inte någon machogrej: en studie av attityder, arbetssäkerhet och manligheter i de australiska kolgruvorna2005In: Kvinnoforskningsnytt : nyhetsblad från Centrum för kvinnoforskning, Luleå tekniska universitet, ISSN 1401-5390, no 1, p. 11-22Article in journal (Other (popular science, discussion, etc.))
  • 461.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Somerville, Margaret
    University of New England.
    Mining work is not a macho-thing: a study of changing masculinities and new demands on learning safety in the Australian coal mining industry2003Conference paper (Other academic)
  • 462.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Somerville, Margaret
    University of New England.
    Safety, learning and masculinity in the Australian coal mines2005Conference paper (Refereed)
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    FULLTEXT01
  • 463.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Somerville, Margaret
    University of New England.
    Trainers and learners constructing a community of practice: masculine work cultures and learning safety in the mining industry2003In: Studies in the Education of Adults, ISSN 0266-0830, E-ISSN 1478-9833, Vol. 35, no 1, p. 19-34Article in journal (Refereed)
    Abstract [en]

    Analyzes the cultures of mine work in which trainers and mine workers operate and specifically, their responses about their teaching and learning practices. Discussion on informal workplace learning; Two dimensions to understanding vocational educators' practice; Background on the Mines Rescue Station, an important site for the production/construction and spreading of the story of mining work; Conclusion.

  • 464.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Veibäck, Torgny
    Luleå tekniska universitet.
    Frågor om arbetssituation och kompetens: resultat från enkätundersökning på Duni i Halmstad1995Report (Other academic)
  • 465.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Waara, Peter
    Många manliga män: en studie om hur kvinnor och män skildras i norrbottnisk massmedia2005Report (Other academic)
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    FULLTEXT01
  • 466.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Wallberg, Anders
    Luleå tekniska universitet.
    ASA : arbetssäkerhetsanalys: ledarhandledning1994Book (Other academic)
  • 467.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Wallberg, Anders
    Luleå tekniska universitet.
    ASA : arbetssäkerhetsanalys: lärobok1994Book (Other academic)
  • 468.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Westerberg, Mats
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Forsberg, Lena
    Luleå University of Technology, External, LTU Business AB.
    Projekt: Hästkrafter för entreprenörskap2010Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    En studie av företagande, ledarskap och genus i hästbranschen. Projektet pågick 2009-2011 med finansiering från Stiftelsen Lantbruksforskning (2,5 milj kr). I projektet medverkade Lena Abrahamsson, Mats Westerberg och doktorand Lena Forsberg.

  • 469.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Öhrling, Therese
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Projekt: Lönsam arbetsmiljö för städare2010Other (Other (popular science, discussion, etc.))
    Abstract [sv]

    IFAU och AFA

  • 470. Abrahamsson, Linnéa
    et al.
    Danis, Sanna
    En beskrivning av hur arbetsterapeuten använder sig av leken i arbete med barn2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 471. Abrahamsson, Magnus
    et al.
    Thano, Roger
    Kostnadsökningar - vid utförandeentreprenader med och utan partnering2003Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 472. Abrahamsson, Malin
    Kulturentreprenörers personliga nätverk: karaktär och värdeutbyten2010Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
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  • 473. Abrahamsson, Maria
    Skyddsavstånd till transportleder för farligt gods2013Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Download full text (pdf)
    FULLTEXT02
  • 474. Abrahamsson, Mats
    et al.
    Niemi, Magnus
    IT-relaterat säkerhetsarbete på svenska universitet: en fallstudie över LTU2005Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 475. Abrahamsson, Niklas
    et al.
    Wanhatalo, Henrik
    Förbättrad leveransprecision genom en produktivare och tillförlitligare produktion: en fallstudie vid AB Sandvik Steels rördivision.2002Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 476.
    Abrahamsson, Stefan
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
    Positionering av last hos gantrykranar via direktverkan på last1988Report (Other academic)
  • 477. Abrahamsson, Terese
    et al.
    Taavo, Therese
    Manliga och kvinnliga förskollärares uppfattningar om sitt arbete: ur ett genusperspektiv2009Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 478. Abrahamsson, Thérese
    et al.
    Sundström, Charlotte
    Man behöver inte göra det märkvärdigare än vad det är: en studie om lärares uppfattningar av skriftliga omdömen i den individuella utvecklingsplanen.2009Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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    FULLTEXT01
  • 479.
    Abramov, A.A.
    et al.
    Moscow State Mining University, Moscow.
    Forssberg, Eric
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
    Chemistry and optimal conditions for copper minerals flotation: theory and practice2005In: Mineral Processing and Extractive Metallurgy Review, ISSN 0882-7508, E-ISSN 1547-7401, Vol. 26, no 2, p. 77-143Article in journal (Refereed)
    Abstract [en]

    Reliable information on the surface state of sulphide copper minerals and regularities of sulphidization and flotation of oxidized copper minerals, the composition of sorption layer on the mineral surface forming during its interaction with xanthate or dixanthogen, and the influence of collector forms sorption on the copper minerals floatability and on the optimal conditions for these minerals flotation and depression has been obtained at present. The determined physicochemical models in the form of quantitative equations have been derived for the optimal conditions of flotation and depression of copper minerals under changing pH value and of sodium sulphide, lime, cyanide, zinc–cyanide complexes additions. The equations derived were proven in the laboratory and industrial scale and can be used both in automatic control systems at plants and for improvement of technological processes of selective flotation of copper containing ores.

  • 480.
    Abramovic, Shoshana
    et al.
    University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science. University of Tromsø ; The Arctic University of Norway, Narvik.
    Fejer and Hermite–Hadamard Type Inequalitiesfor N-Quasiconvex Functions2017In: Mathematical notes of the Academy of Sciences of the USSR, ISSN 0001-4346, E-ISSN 1573-8876, Vol. 102, no 5-6, p. 599-609Article in journal (Refereed)
    Abstract [en]

    Abstract—Some new extensions and refinements of Hermite–Hadamard and Fejer type inequali-ties for functions which are N-quasiconvex are derived and discussed.

  • 481.
    Abramovich, S.
    et al.
    Department of Mathematics, University of Haifa, Haifa, Israel.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science. UIT The Arctic University of Norway, Narvik, Norway.
    Extensions and Refinements of Fejer and Hermite–Hadamard Type Inequalities2018In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 21, no 3, p. 759-772Article in journal (Refereed)
    Abstract [en]

    In this paper extensions and refinements of Hermite-Hadamard and Fejer type inequalities are derived including monotonicity of some functions related to the Fejer inequality and extensions for functions, which are 1-quasiconvex and for function with bounded second derivative. We deal also with Fejer inequalities in cases that p, the weight function in Fejer inequality, is not symmetric but monotone on [a, b] .

  • 482.
    Abramovich, Shosana
    et al.
    Department of Mathematics, University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Some New Refined Hardy Type Inequalities with Breaking Points p = 2 or p = 32014In: Concrete Operators, Spectral Theory, Operators in Harmonic Analysis and Approximation: 22nd International Workshop in Operator Theory and its Applications, Sevilla, July 2011 / [ed] Manuel Cepedello Boiso; Håkan Hedenmalm; Marinus A. Kaashoek; Alfonso Montes Rodríguez; Sergei Treil, Basel: Encyclopedia of Global Archaeology/Springer Verlag, 2014, p. 1-10Conference paper (Refereed)
    Abstract [en]

    For usual Hardy type inequalities the natural “breaking point” (the parameter value where the inequality reverses) is p = 1. Recently, J. Oguntuase and L.-E. Persson proved a refined Hardy type inequality with breaking point at p = 2. In this paper we show that this refinement is not unique and can be replaced by another refined Hardy type inequality with breaking point at p = 2. Moreover, a new refined Hardy type inequality with breaking point at p = 3 is obtained. One key idea is to prove some new Jensen type inequalities related to convex or superquadratic funcions, which are also of independent interest

  • 483.
    Abramovich, Shoshana
    et al.
    Department of Mathematics, University of Haifa.
    Krulić, Kristina
    Faculty of Textile Technology, University of Zagreb.
    Pečarić, Josip
    Faculty of Textile Technology, University of Zagreb.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Some new refined Hardy type inequalities with general kernels and measures2010In: Aequationes Mathematicae, ISSN 0001-9054, E-ISSN 1420-8903, Vol. 79, no 1-2, p. 157-172Article in journal (Refereed)
    Abstract [en]

    We state and prove some new refined Hardy type inequalities using the notation of superquadratic and subquadratic functions with an integral operator Ak defined by, where k: Ω1 × Ω2 is a general nonnegative kernel, (Ω1, μ1) and (Ω2, μ2) are measure spaces and,. The relations to other results of this type are discussed and, in particular, some new integral identities of independent interest are obtained.

  • 484.
    Abramovich, Shoshana
    et al.
    Department of Mathematics, University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Inequalities for averages of quasiconvex and superquadratic functions2016In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 19, no 2, p. 535-550Article in journal (Refereed)
    Abstract [en]

    For n ε ℤ+ we consider the difference Bn-1 (f)-Bn(f):= 1/an n-1/ηi=0 f(ai/an-1)-1/an+1 nηi=0f(ai/an) where the sequences{ai} and {ai-ai-1} are increasing. Some lower bounds are derived when f is 1-quasiconvex and when f is a closely related superquadratic function. In particular, by using some fairly new results concerning the so called "Jensen gap", these bounds can be compared. Some applications and related results about An-1 (f)-An(f):= 1/an n-1/ηi=0 f(ai/an-1)-1/an+1 nηi=0f(ai/an) are also included.

  • 485.
    Abramovich, Shoshana
    et al.
    Department of Mathematics, University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Some new estimates of the ‘Jensen gap’2016In: Journal of inequalities and applications (Print), ISSN 1025-5834, E-ISSN 1029-242X, Vol. 2016, article id 39Article in journal (Refereed)
    Abstract [en]

    Let (μ,Ω) be a probability measure space. We consider the so-called ‘Jensen gap’ J(φ,μ,f)=∫ Ω φ(f(s))dμ(s)−φ(∫ Ω f(s)dμ(s)) for some classes of functions φ. Several new estimates and equalities are derived and compared with other results of this type. Especially the case when φ has a Taylor expansion is treated and the corresponding discrete results are pointed out.

  • 486.
    Abramovich, Shoshana
    et al.
    University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Some new scales of refined Hardy type inequalities via functions related to superquadracity2013In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 16, no 3, p. 679-695Article in journal (Refereed)
    Abstract [en]

    For the Hardy type inequalities the "breaking point" (=the point where the inequality reverses) is p = 1. Recently, J. Oguntoase and L. E. Persson proved a refined Hardy type inequality with a breaking point at p = 2. In this paper we prove a new scale of refined Hardy type inequality which can have a breaking point at any p ≥ 2. The technique is to first make some further investigations for superquadratic and superterzatic functions of independent interest, among which, a new Jensen type inequality is proved

  • 487.
    Abramovich, Shoshana
    et al.
    University of Haifa, Department of Mathematics.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Pecaric, Josip
    University of Zagreb.
    Varosanec, Sanja
    University of Zagreb.
    General inequalities via isotonic subadditive functionals2007In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 10, no 1, p. 15-28Article in journal (Refereed)
    Abstract [en]

    In this manuscript a number of general inequalities for isotonic subadditive functionals on a set of positive mappings are proved and applied. In particular, it is pointed out that these inequalities both unify and generalize some general forms of the Holder, Popoviciu, Minkowski, Bellman and Power mean inequalities. Also some refinements of some of these results are proved.

  • 488.
    Abramovich, Shoshana
    et al.
    University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Samko, Natasha
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    On some new developments of Hardy-type inequalities2012In: 9th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences: ICNPAA 2012 / [ed] Seenith Sivasundaram, Melville, NY: American Institute of Physics (AIP), 2012, p. 739-746Conference paper (Refereed)
    Abstract [en]

    In this paper we present and discuss some new developments of Hardy-type inequalities, namely to derive (a) Hardy-type inequalities via a convexity approach, (b) refined scales of Hardy-type inequalities with other “breaking points” than p = 1 via superquadratic and superterzatic functions, (c) scales of conditions to characterize modern forms of weighted Hardy-type inequalities.

  • 489.
    Abramovich, Shoshana
    et al.
    Department of Mathematics, University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Samko, Natasha
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    On γ-quasiconvexity, superquadracity and two-sided reversed Jensen type inequalities2015In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 18, no 2, p. 615-627Article in journal (Refereed)
    Abstract [en]

    In this paper we deal with γ -quasiconvex functions when −1γ 0, to derive sometwo-sided Jensen type inequalities. We also discuss some Jensen-Steffensen type inequalitiesfor 1-quasiconvex functions. We compare Jensen type inequalities for 1-quasiconvex functionswith Jensen type inequalities for superquadratic functions and we extend the result obtained forγ -quasiconvex functions to more general classes of functions.

  • 490.
    Abramovich, Shoshana
    et al.
    Department of Mathematics, University of Haifa.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Samko, Natasha
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Some new scales of refined Jensen and Hardy type inequalities2014In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 17, no 3, p. 1105-1114Article in journal (Refereed)
    Abstract [en]

    Some scales of refined Jensen and Hardy type inequalities are derived and discussed. The key object in our technique is ? -quasiconvex functions K(x) defined by K(x)x-? =? (x) , where Φ is convex on [0,b) , 0 < b > ∞ and γ > 0.

  • 491. Abramsson, Ida
    et al.
    Johansson, Krister
    Internet - informationskälla och kommunikationsmedel: ett försök att utveckla elevernas förmåga att använda Internet i skolarbetet1999Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 492. Abramsson, MaiGreth
    et al.
    Byström, Eva
    Personers upplevelser av att lära sig leva med typ-2 diabetes2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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    FULLTEXT02
  • 493.
    Abrishambaf, Reza
    et al.
    Department of Engineering Technology, Miami University, Hamilton, OH.
    Bal, Mert
    Department of Engineering Technology, Miami University, Hamilton, OH.
    Vyatkin, Valeriy
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science.
    Distributed home automation system based on IEC61499 function blocks and wireless sensor networks2017In: Proceedings of the IEEE International Conference on Industrial Technology, Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 1354-1359, article id 7915561Conference paper (Refereed)
    Abstract [en]

    In this paper, a distributed home automation system will be demonstrated. Traditional systems are based on a central controller where all the decisions are made. The proposed control architecture is a solution to overcome the problems such as the lack of flexibility and re-configurability that most of the conventional systems have. This has been achieved by employing a method based on the new IEC 61499 function block standard, which is proposed for distributed control systems. This paper also proposes a wireless sensor network as the system infrastructure in addition to the function blocks in order to implement the Internet-of-Things technology into the area of home automation as a solution for distributed monitoring and control. The proposed system has been implemented in both Cyber (nxtControl) and Physical (Contiki-OS) level to show the applicability of the solution

  • 494.
    Abudayyeh, H.A.
    et al.
    Department of Physics, Al-Quds University, Jerusalem.
    Barghouthi, I.A.
    Department of Physics, Al-Quds University, Jerusalem.
    Slapak, Rikard
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.
    Nilsson, Hans
    Swedish Institute of Space Physics / Institutet för rymdfysik.
    Centrifugal acceleration at high altitudes above the polar cap: A Monte Carlo simulation2015In: Journal of Geophysical Research - Space Physics, ISSN 2169-9380, E-ISSN 2169-9402, Vol. 120, no 8, p. 6409-6426Article in journal (Refereed)
    Abstract [en]

    A Monte Carlo simulation was used to study the outflow of O+ and H+ ions along three flight trajectories above the polar cap up to altitudes of about 15 RE. Barghouthi (2008) developed a model on the basis of altitude and velocity-dependent wave-particle interactions and a radial geomagnetic field which includes the effects of ambipolar electric field and gravitational and mirror forces. In the present work we improve this model to include the effect of the centrifugal force, with the use of relevant boundary conditions. In addition, the magnetic field and flight trajectories, namely, the central polar cap (CPC), nightside polar cap (NPC), and cusp, were calculated using the Tsyganenko T96 model. To simulate wave-particle interactions, the perpendicular velocity diffusion coefficients for O+ ions in each region were determined such that the simulation results fit the observations. For H+ ions, a constant perpendicular velocity diffusion coefficient was assumed for all altitudes in all regions as recommended by Nilsson et al. (2013). The effect of centrifugal acceleration was simulated by considering three values for the ionospheric electric field: 0 (no centrifugal acceleration), 50, and 100 mV/m. It was found that the centrifugal acceleration increases the parallel bulk velocity and decreases the parallel and perpendicular temperatures of both ion species at altitudes above about 4 RE. Centrifugal acceleration also increases the temperature anisotropy at high altitudes. At a given altitude, centrifugal acceleration decreases the density of H+ ions while it increases the density of O+ ions. This implies that with higher centrifugal acceleration more O+ ions overcome the potential barrier. It was also found that aside from two exceptions centrifugal acceleration has the same effect on the velocities of both ions. This implies that the centrifugal acceleration is universal for all particles. The parallel bulk velocities at a given value of ionospheric electric field were highest in the cusp followed by the CPC followed by the NPC. In this study a region of no wave-particle interaction was assumed in the CPC and NPC between 3.7 and 7.5 RE. In this region the perpendicular temperature was found to decrease with altitude due to perpendicular adiabatic cooling.

  • 495. Abulkheir, Jasmine
    et al.
    Olldén, Lisa
    Reliabilitet och validitet av mätmetoder vid vila och aktivering av Transversus abdominis och Multifidus: en systematisk litteraturstudie om EMG och ultraljud2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 496. Abushaar, Ubah
    Papperslösa flyktingars rätt till subventionerad hälso- och sjukvård2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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    FULLTEXT02
  • 497. Abyareh, Reza
    Tourism attractions and their influence on handicraft employment in Isfahan2009Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Tourism attractions and handicrafts are the main and important factors in attraction of tourist and following it increasing occupation in the present societies. Isfahan, as one of the most important historical cities in our country has special position both from viewpoint of tourism attractions [Ancient Works] and also from viewpoint of handicrafts [variety, quality and oldness of handicrafts] has special position. In this thesis I made effort to research for the relation between tourism attractions and increasing occupation in the handicrafts section. In this thesis it was determined that there is direct relation between tourism attractions and attracting tourist as well as increasing occupation in the handicrafts section [training and establishment of workshop].

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    FULLTEXT01
  • 498.
    Abylayeva, Akbota
    Luleå University of Technology, Department of Engineering Sciences and Mathematics.
    Inequalities for some classes of Hardy type operators and compactness in weighted Lebesgue spaces2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This PhD thesis is devoted to investigate weighted differential Hardy inequalities and Hardy-type inequalities with the kernel when the kernel has an integrable singularity, and also the additivity of the estimate of a Hardy type operator with a kernel.The thesis consists of seven papers (Papers 1, 2, 3, 4, 5, 6, 7) and an introduction where a review on the subject of the thesis is given. In Paper 1 weighted differential Hardy type inequalities are investigated on the set of compactly supported smooth functions, where necessary and sufficient conditions on the weight functions are established for which this inequality and two-sided estimates for the best constant hold. In Papers 2, 3, 4 a more general class of -order fractional integrationoperators are considered including the well-known classical Weyl, Riemann-Liouville, Erdelyi-Kober and Hadamard operators. Here 0 <  < 1. In Papers 2 and 3 the boundedness and compactness of two classes of such operators are investigated namely of Weyl and Riemann-Liouville type, respectively, in weighted Lebesgue spaces for 1 < p ≤ q < 1 and 0 < q < p < ∞. As applications some new results for the fractional integration operators of Weyl, Riemann-Liouville, Erdelyi-Kober and Hadamard are given and discussed.In Paper 4 the Riemann-Liouville type operator with variable upper limit is considered. The main results are proved by using a localization method equipped with the upper limit function and the kernel of the operator. In Papers 5 and 6 the Hardy operator with kernel is considered, where the kernel has a logarithmic singularity. The criteria of the boundedness and compactness of the operator in weighted Lebesgue spaces are given for 1 < p ≤ q < ∞ and 0 < q < p < ∞, respectively. In Paper 7 we investigated the weighted additive estimates for integral operators K+ and K¯ defined by

    K+ ƒ(x) := ∫ k(x,s) ƒ(s)ds,  K¯ ƒ(x) := ∫ k(x,s)ƒ(s)ds.

    It is assumed that the kernel k of the operators K+and K- belongs to the general Oinarov class. We derived the criteria for the validity of these addittive estimates when 1 ≤ p≤ q < ∞

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    fulltext
  • 499.
    Abylayeva, Akbota M.
    et al.
    Department of Mechanics and Mathematics, L.N. Gumilyov Eurasian National University, Astana .
    Oinarov, Ryskul
    Department of Mechanics and Mathematics, L.N. Gumilyov Eurasian National University, Astana.
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science.
    Boundedness and compactness of a class of Hardy type operators2016In: Journal of inequalities and applications (Print), ISSN 1025-5834, E-ISSN 1029-242X, no 1, article id 324Article in journal (Refereed)
    Abstract [en]

    We establish characterizations of both boundedness and of compactness of a general class of fractional integral operators involving the Riemann-Liouville, Hadamard, and Erdelyi-Kober operators. In particular, these results imply new results in the theory of Hardy type inequalities. As applications both new and well-known results are pointed out.

  • 500.
    Abylayeva, Akbota M.
    et al.
    Department of Mechanics and Mathematics, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan .
    Persson, Lars-Erik
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mathematical Science. UiT, Tromso, Norway. RUDN University, Moscow, Russia.
    Hardy type inequalities and compactness of a class of integral operators with logarithmic singularities2018In: Mathematical Inequalities & Applications, ISSN 1331-4343, E-ISSN 1848-9966, Vol. 21, no 1, p. 201-215, article id 21-16Article in journal (Refereed)
    Abstract [en]

    We establish criteria for both boundedness and compactness for some classes of integraloperators with logarithmic singularities in weighted Lebesgue spaces for cases 1 < p 6 q <¥ and 1 < q < p < ¥. As corollaries some corresponding new Hardy inequalities are pointedout.1

78910111213 451 - 500 of 66210
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