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| 2. |
- Hällgren, Markus, et al.
(författare)
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Relevance lost! a critical review of project management standardisation
- 2012
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Ingår i: International Journal of Managing Projects in Business. - : Emerald Group Publishing Limited. - 1753-8378 .- 1753-8386. ; 5:3, s. 457-485
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this paper is to critically analyze the consequences of the diffusion of generic project management knowledge.Design/methodology/approach: This paper is conceptual in its nature, using short examples of four different areas (education, research, certification and practice) to show the diffusion of project management knowledge throughout these areas.Findings: In this paper the authors argue that relevance may be lost at two levels. The first loss occurs when the practice of project management is transferred, through generalisation and standardisation, into what is generally known as “Best Practice”. The second occurs when “Best Practice” is transferred back to where it is applied (education, research, certification and practice).Research limitations/implications: The risk of losing relevance has consequences for what one bases one's assumptions of the nature of projects upon. If the assumptions are based on standardized knowledge, without critically assessing its correctness, the likelihood of producing less relevant research is higher.Practical implications: With the risk of losing relevance the authors argue that anyone involved in the areas of education, research, certification and practice needs to be cautious of how they perceive and work with the standards. There is a risk that the knowledge becomes even less relevant and students and practitioners are therefore less prepared for reality.Originality/value: This paper is part of the literature critiquing the standardization of project management knowledge but it is distinct in terms of how the diffusion processes are perceived and utilized in a project setting.
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| 3. |
- Blomquist, Tomas, 1963-, et al.
(författare)
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Project-as-practice : in search of project management research that matters
- 2010
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Ingår i: Project Management Journal. - : SAGE Publications. - 8756-9728 .- 1938-9507. ; 41:1, s. 5-16
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Tidskriftsartikel (refereegranskat)abstract
- Research on projects is not only an immaturefield of research, but it is also insubstantial whenit comes to understanding what occurs in projects.This article contributes to making projectmanagement research matter to the academic aswell as to the practitioner by developing a projectas-practice approach, in alignment with theongoing debate in social science research.The article outlines a framework and argues thatthere are two major challenges to the researcherand also suggests how these challenges can bemet. Underlying notions of the practice approachare outlined to ensure a development of theproject-as-practice approach that makes projectmanagement research matter!
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| 4. |
- Hällgren, Markus, 1977-
(författare)
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Avvikelsens mekanismer : Observationer av projekt i praktiken
- 2009
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Bakgrund I det närmaste alla organisationer strävar efter att använda sina resurser så effektivt som möjligt. Vad som dock inte diskuterats i någon större utsträckning är att den starkt kopplade komplexa organisationen inte klarar av att bemöta ens den minsta avvikelsen utan att ägna den direkt uppmärksamhet. Den övergripande frågan är därför Hur hanteras avvikelser i starkt kopplade projekt? Det teoretiska ramverket är först och främst projektlitteratur men ramverket vidgas sedermera till att omfatta praktikansatslitteratur samt Weicks (1976) ”Loosely coupled systems”. Metod Givet ansatsen faller det sig naturligt att göra en fallstudie med observationer som huvudsaklig metod. Utöver tolv veckors observationer förlitar jag mig på 57 intervjuer och mängder av dokument. En organisation, två projektgrupper och 118 avvikelser observerades totalt under perioden. De data som samlades in analyserades med hjälp av dataprogrammet Nvivo. Resultat Analysen är uppdelad i tre integrerade kapitel. Det första kapitlet diskuterar avvikelser som företeelse och definierar begreppet närmare. En avvikelse definieras som en händelse som kräver såväl identitet som handlingskraft. Det andra analyskapitlet analyserar praktiken närmare. Allt som allt observerades 29 praktiker vilka kunde grupperas i åtta praktikmönster. Praktikmönstren kunde sedermera inordnas i två distinkta löskopplingsmönster i en teoretiskt underbyggd och empiriskt styrkt figur. Figuren och följaktligen praktikmönstren beskriver hur avvikelsen görs löst kopplad. Det tredje analyskapitlet diskuterar fem mekanismer som följer av med de löst kopplade avvikelserna. Dessa fem mekanismer kan sedermera betonas och utnyttjas av projektledaren. Slutsatser Slutsatserna följer två spår. Det ena spåret fokuserar på projekt i allmänhet och projektledning i synnerhet. Slutsatsen som kan dras där är att det finns en inneboende osäkerhet i projekt som kan utnyttjas för att hantera avvikelser. Alla avvikelser har inte stora konsekvenser men de besitter vissa gemensamma egenskaper. Det andra spåret är ett bidrag till teorin om löst kopplade system. Länge har en processuell och praktikbaserad studie saknats. Genom att undersöka löskopplingsprocesser i ljuset av en praktikansats har jag visat hur löskopplingsprocesser ser ut.
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| 5. |
- Hällgren, Tomas, et al.
(författare)
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Triplet leptogenesis in left-right symmetric seesaw models
- 2008
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Ingår i: Journal of Cosmology and Astroparticle Physics. - : IOP Publishing / SISSA. - 1475-7516. ; 2008:01, s. 014-
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Tidskriftsartikel (refereegranskat)abstract
- We discuss scalar triplet leptogenesis in a specific left-right symmetric seesaw model. We show that the Majorana phases that are present in the model can be effectively used to saturate the existing upper limit on the CP-asymmetry of the triplets. We solve the relevant Boltzmann equations and analyze the viability of triplet leptogenesis. It is known for this kind of scenario that the efficiency of leptogenesis is maximal if there exists a hierarchy between the branching ratios of the triplet decays into leptons and Higgs particles. We show that triplet leptogenesis typically favors branching ratios with not too strong hierarchies, since maximal efficiency can only be obtained at the expense of suppressed CP-asymmetries.
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| 6. |
- Akhmedov, Evgeny, et al.
(författare)
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Stability and leptogenesis in the left-right symmetric seesaw mechanism
- 2007
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Ingår i: Journal of High Energy Physics (JHEP). - : Springer Science and Business Media LLC. - 1126-6708 .- 1029-8479. ; 4, s. 022-1-022-25
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Tidskriftsartikel (refereegranskat)abstract
- We analyze the left-right symmetric type I+II seesaw mechanism, where an eight-fold degeneracy among the mass matrices of heavy right-handed neutrinos M-R is known to exist. Using the stability property of the solutions and their ability to lead to successful baryogenesis via leptogenesis as additional criteria, we discriminate among these eight solutions and partially lift their eight-fold degeneracy. In particular, we find that viable leptogenesis is generically possible for four out of the eight solutions.
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| 7. |
- Andersson, Annika, 1961-, et al.
(författare)
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Challenges in project management : Grabbing the elephant
- 2007
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Ingår i: Projects & Profits. ; 7:12, s. 33-37
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Tidskriftsartikel (refereegranskat)abstract
- Projects and project management tend to have special meanings to the individuals involved in a specific line of research. This article reports on some topics covered in an informal Swedish network devoted to study project management. Ten topics are selected for discussion that fall into three broad categories—projects as practice, productivity in projects and education in a PM curriculum.
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| 8. |
- Bauer, F., et al.
(författare)
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Discretized gravity in 6D warped space
- 2007
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Ingår i: Nuclear Physics B. - : Elsevier BV. - 0550-3213 .- 1873-1562. ; 278:1-3, s. 32-63
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Tidskriftsartikel (refereegranskat)abstract
- We consider discretized gravity in six dimensions. where the two extra dimensions have been compactified on a hyperbolic disk of constant curvature. We analyze different realizations of lattice gravity on the disk at the level of an effective field theory for massive gravitons. It is shown that the observed strong coupling scale of lattice gravity in discretized five-dimensional flat or warped space can be increased if the latticized fifth dimension is wrapped around a hyperbolic disk that has a non-trivial warp factor. As an application, we also study the generation of naturally small Dirac neutrino masses via a discrete volume suppression mechanism and discuss briefly collider implications of our model.
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| 9. |
- Hällgren, Tomas
(författare)
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Aspects of Dimensional Deconstruction and Neutrino Physics
- 2007
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The existence of at or curved extra spatial dimensions provides new insights into several of the problems which face the Standard Model of particle physics, including the gauge hierarchy problem, the smallness of neutrino masses, and the dark matter problem. However, higher-dimensional gauge theories are not renormalizable and can only be considered as low-energy effective theories, with limited applicability. Dimensional deconstruction provides a class of manifestly gauge invariant possible ultraviolet completions of higher-dimensional gauge theories, formulated within conventional quantum eld theory. In dimensional deconstruction, the fundamental theory is a four-dimensional quantum eld theory and extra spatial dimensions are generated dynamically at low energies. In this thesis, we study di erent applications of dimensional deconstruction in the contexts of neutrino masses, mixing and oscillations, Kaluza{Klein dark matter, and e ective eld theories for discretized higher-dimensional gravity. A different possibility to understand the smallness of neutrino masses is provided by the see-saw mechanism. This is a genuinely four-dimensional mechanism, where the light neutrino masses are induced by the addition of heavy right-handed Majorana neutrinos or by other heavy degrees of freedom, such as scalar SU(2)L triplet elds. It has the attractive feature of simultaneously providing a mechanism for generating the observed baryon asymmetry of the Universe. We study in this context a specific left-right symmetric see-saw model.
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| 10. |
- Hällgren, Tomas
(författare)
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Kaluza-klein dark matter from deconstructed universal extra dimensions
- 2007
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Ingår i: SUSY06. - : American Institute of Physics (AIP). - 0735404100 - 9780735404106 ; , s. 652-655
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Konferensbidrag (refereegranskat)abstract
- We consider Kaluza-Klein dark matter from deconstructed or latticized universal extra dimensions and study in this model the positron flux from Kaluza-Klein dark matter annihilation in the galactic halo.
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