| 1. |
- Abelev, Betty, et al.
(författare)
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Long-range angular correlations on the near and away side in p-Pb collisions at root S-NN=5.02 TeV
- 2013
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Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 719:1-3, s. 29-41
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Tidskriftsartikel (refereegranskat)abstract
- Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < P-T,P-assoc < P-T,P-trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS Collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and p(T) bins, and the widths show no significant evolution with event multiplicity or p(T). These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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| 2. |
- Estrada, Karol, et al.
(författare)
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Genome-wide meta-analysis identifies 56 bone mineral density loci and reveals 14 loci associated with risk of fracture.
- 2012
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Ingår i: Nature genetics. - : Springer Science and Business Media LLC. - 1546-1718 .- 1061-4036. ; 44:5, s. 491-501
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Tidskriftsartikel (refereegranskat)abstract
- Bone mineral density (BMD) is the most widely used predictor of fracture risk. We performed the largest meta-analysis to date on lumbar spine and femoral neck BMD, including 17 genome-wide association studies and 32,961 individuals of European and east Asian ancestry. We tested the top BMD-associated markers for replication in 50,933 independent subjects and for association with risk of low-trauma fracture in 31,016 individuals with a history of fracture (cases) and 102,444 controls. We identified 56 loci (32 new) associated with BMD at genome-wide significance (P < 5 × 10(-8)). Several of these factors cluster within the RANK-RANKL-OPG, mesenchymal stem cell differentiation, endochondral ossification and Wnt signaling pathways. However, we also discovered loci that were localized to genes not known to have a role in bone biology. Fourteen BMD-associated loci were also associated with fracture risk (P < 5 × 10(-4), Bonferroni corrected), of which six reached P < 5 × 10(-8), including at 18p11.21 (FAM210A), 7q21.3 (SLC25A13), 11q13.2 (LRP5), 4q22.1 (MEPE), 2p16.2 (SPTBN1) and 10q21.1 (DKK1). These findings shed light on the genetic architecture and pathophysiological mechanisms underlying BMD variation and fracture susceptibility.
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| 3. |
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| 4. |
- Liu, Ching-Ti, et al.
(författare)
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Assessment of gene-by-sex interaction effect on bone mineral density
- 2012
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Ingår i: Journal of Bone and Mineral Research. - : Wiley. - 1523-4681 .- 0884-0431. ; 27:10, s. 2051-2064
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Tidskriftsartikel (refereegranskat)abstract
- Sexual dimorphism in various bone phenotypes, including bone mineral density (BMD), is widely observed; however, the extent to which genes explain these sex differences is unclear. To identify variants with different effects by sex, we examined gene-by-sex autosomal interactions genome-wide, and performed expression quantitative trait loci (eQTL) analysis and bioinformatics network analysis. We conducted an autosomal genome-wide meta-analysis of gene-by-sex interaction on lumbar spine (LS) and femoral neck (FN) BMD in 25,353 individuals from 8 cohorts. In a second stage, we followed up the 12 top single-nucleotide polymorphisms (SNPs; p?
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| 5. |
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| 6. |
- Ambell, Christine, et al.
(författare)
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Potential för ökad materialåtervinning av hushållsavfall och industriavfall
- 2010
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Rapport (populärvet., debatt m.m.)abstract
- Rapportens övergripande syfte är att ge underlag för eventuella förslag till mål för ökad materialåtervinning i Sverige. Vi har gjort detta genom att beräkna potentialen (mängder) för ökad källsortering och materialåtervinning av avfall i Sverige, analysera miljömässiga och företagsekonomiska konsekvenser, samt samla information om den praktiska genomförbarheten. Utifrån befintlig avfallsstatistik har vi identifierat vilka mängder av fraktionerna plast, papper och papp, metall, glas, gummi, gips, textil och WEEE som förekommer i blandade avfallskategorier men som skulle kunna källsorteras och materialåtervinnas. Med ett scenario för hur avfallsmängderna kan antas öka till år 2030 har vi beräknat de potentiella miljöeffekterna i ett livscykelperspektiv av maximal källsortering och materialåtervinning jämfört med dagens nivåer. Klimatpåverkan, försurning, övergödning, bildning av fotooxidanter och total energianvändning utvärderades för plast, papper och papp, metall, glas och gummi. För samma scenario har de företagsekonomiska kostnaderna för ökad återvinning beräknats. Dessutom har olika aktörer intervjuats om vad de ser för hinder och möjligheter för ökad materialåtervinning. Trots väl utbyggd källsortering och återvinning är fortfarande potentialen för ökad källsortering i Sverige betydande. Miljöbedömningarna visar att dagens system för avfallshantering medför nettovinster för miljön i ett livscykelperspektiv, genom att de resurser som återvinns från avfall indirekt ger minskad miljöpåverkan från andra sektorer. Denna positiva indirekta miljöpåverkan från avfallshanteringen kan öka ytterligare genom att öka återvinningen. Med hänsyn till möjliga miljövinster per kton material och tillgängliga mängder återvinningsbart material i blandat avfall, framstår ökad återvinning av plastavfall och pappers- och pappavfall som miljömässigt prioriterat. Ökad återvinning av metallavfall och gummiavfall skulle ge mindre men tydliga miljövinster. Ökad återvinning av glasavfall framstår inte som prioriterat. För textilavfall, gipsavfall och WEEE har inga beräkningar gjorts, men av olika skäl som redovisas i rapporten finns anledning att undersöka dessa fraktioner vidare. Intervjuer och möten med representanter för olika avfallsbolag, återvinningsindustrier, byggsektorn och boendesektorn har gett en mångfald av synpunkter, idéer och förslag kring ökad källsortering och återvinning. Det rör allt ifrån internationell lagstiftning på avfallsområdet och övriga miljöområdet, till synpunkter på arkitekters ansvar att ta hänsyn till källsortering vid nyproduktion. Resultatet kan tolkas som att det finns praktiska förutsättningar att öka källsortering och återvinning i Sverige. Inga synpunkter om avgörande praktiska hinder framfördes. Överlag verkar det finnas en vilja att bidra till ökad källsortering och återvinning, förutsatt att det är motiverat ur miljösynpunkt, men det finns önskemål om tydligare målformuleringar och regelverk. De företagsekonomiska kostnaderna för avfallshantering ökar med ökad återvinning, men i jämförelse med tillgängliga beräknade åtgärdskostnader för reduktion av växthusgaser inom transportsektorn, framstår kostnaderna som rimliga.
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| 7. |
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| 8. |
- Andersson, Erik
(författare)
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Det politiska rummet : villkor för situationspolitisk socialisation i en nätgemenskap av och för ungdomar
- 2012
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The aim is to analyse the institutional character of, and the on-going communication in, a net community organised by and for young people. This is achieved using terms of conditions for situational political socialisation – a situation in a specific context in which the participants, within the battle between different groups attempting to organise society through interaction and action, adopt political preferences and skills. The thesis builds on agonism, a political theory in which controversy and struggle are viewed as prerequisites for human life that uses language as a political act. The net community, as an institution, contingently depends on political rebirth via action and communication. The use of language creates places that give the institution meaning while at the same time the institution claims the participants and their creation of meaning. Black Heart, the analysed net community, is a quasi-public space for and by young people aged between 14 and 28 years. It is a cultural community where political conversations take place among other kinds of communication. The institutional character of Black Heart and ten politically controversial conversations are analysed, using a case study method that applies web content analysis and computer mediated discourse analysis. There is a strong institutional framework operating in the political text conversations of Black Heart, the participants are governed by the institution and the participants govern each other. The political communication is characterised by revealing and arguing for political interest. To challenge is the dominant category of political action which constitutes political subjects that are offensive, argumentative and polemic. Political communication and the on-going interaction generate an educational situation in which the participants are expected to be content oriented, argumentative, expressive, communicative and polemic.
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| 9. |
- Andersson, Magnus, 1983, et al.
(författare)
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Adoption of Systemic and Socio-Technical Perspectives in Waste Management, WEEE and ELV Research
- 2019
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Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 11:6
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Tidskriftsartikel (refereegranskat)abstract
- A greater quantity and variety of materials are being produced worldwide to meet demand for consumer products, buildings and infrastructure. Additionally, highly diffused products such as cars and electronics have become materially complex and depend on numerous scarce metals. Consequently, managing the societal supply of a variety of materials and metals sustainably is becoming increasingly important. This includes the use of efficient and effective waste management. However, the current management of waste in general and of waste consumer products specifically, have been pointed out as requiring significant developments to become more advanced to cope with the increasing material complexity. It has also been pointed out that research taking systems perspectives is crucial to improve waste management. Additionally, researching change processes and the co-evolution of social and technical factors (i.e., socio-technical change), has furthered the understanding of how ‘green’ industries develop in other empirical fields. Consequently, both systemic and socio-technical perspectives are likely relevant to waste management research. We used the Scopus database to search for 31 research approaches associated with such perspectives in journal articles writing about waste management in general, waste electrical and electronic equipment (WEEE) or end-of-life vehicles (ELVs). We conclude that, although the majority of the examined research does not mention the considered approaches, some environmental system analysis approaches are frequently mentioned and show signs of growth in adoption. In contrast, socio-technical approaches are scarcely mentioned. Consequently, we argue that there are relevant scientific tools yet to be adopted in waste management, WEEE and ELV research.
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| 10. |
- Andersson, Magnus, 1983, et al.
(författare)
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Are scarce metals in cars functionally recycled?
- 2017
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Ingår i: Waste Management. - : Elsevier BV. - 0956-053X .- 1879-2456. ; 60, s. 407-416
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Tidskriftsartikel (refereegranskat)abstract
- Improved recycling of end-of-life vehicles (ELVs) may serve as an important strategy to address resource security risks related to increased global demand for scarce metals. However, in-depth knowledge of the magnitude and fate of such metals entering ELV recycling is lacking. This paper quantifies input of 25 scarce metals to Swedish ELV recycling, and estimates the extent to which they are recycled to material streams where their metal properties are utilised, i.e. are functionally recycled. Methodologically, scarce metals are mapped to main types of applications within newly produced Swedish car models and subsequently, material flow analysis of ELV waste streams is used as basis for identifying pathways of these applications and assessing whether contained metals are functionally recycled. Results indicate that, of the scarce metals, only platinum may be functionally recycled in its main application. Cobalt, gold, manganese, molybdenum, palladium, rhodium and silver may be functionally recycled depending on application and pathways taken. For remaining 17 metals, functional recycling is absent. Consequently, despite high overall ELV recycling rates of materials in general, there is considerable risk of losing ELV scarce metals to carrier metals, construction materials, backfilling materials and landfills. Given differences in the application of metals and identified pathways, prospects for increasing functional recycling are discussed.
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