SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "(swepub) srt2:(2010-2025) ;srt2:(2020-2024)"

Sökning: (swepub) srt2:(2010-2025) > (2020-2024)

  • Resultat 1-10 av 310804
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Ward, Sam M., et al. (författare)
  • Relative Intrinsic Scatter in Hierarchical Type Ia Supernova Sibling Analyses : Application to SNe 2021hpr, 1997bq, and 2008fv in NGC 3147
  • 2023
  • Ingår i: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 956:2
  • Tidskriftsartikel (refereegranskat)abstract
    • We present Young Supernova Experiment grizy photometry of SN 2021hpr, the third Type Ia supernova sibling to explode in the Cepheid calibrator galaxy, NGC 3147. Siblings are useful for improving SN-host distance estimates and investigating their contributions toward the SN Ia intrinsic scatter (post-standardization residual scatter in distance estimates). We thus develop a principled Bayesian framework for analyzing SN Ia siblings. At its core is the cosmology-independent relative intrinsic scatter parameter, σRel: the dispersion of siblings distance estimates relative to one another within a galaxy. It quantifies the contribution toward the total intrinsic scatter, σ0, from within-galaxy variations about the siblings' common properties. It also affects the combined distance uncertainty. We present analytic formulae for computing a σRel posterior from individual siblings distances (estimated using any SN model). Applying a newly trained BAYESN model, we fit the light curves of each sibling in NGC 3147 individually, to yield consistent distance estimates. However, the wide σRel posterior means σRel ≈ σ0 is not ruled out. We thus combine the distances by marginalizing over σRel with an informative prior: σRel ∼ U(0, σ0). Simultaneously fitting the trio's light curves improves constraints on distance and each sibling's individual dust parameters, compared to individual fits. Higher correlation also tightens dust parameter constraints. Therefore, σRel marginalization yields robust estimates of siblings distances for cosmology, as well as dust parameters for sibling–host correlation studies. Incorporating NGC 3147's Cepheid distance yields H0 = 78.4 ± 6.5 km s−1 Mpc−1. Our work motivates analyses of homogeneous siblings samples, to constrain σRel and its SN-model dependence.
  •  
2.
  • Wanhainen, Anders, 1966- (författare)
  • Abdominal Aortic Aneurysm : Experience from a Screening Study in Northern Sweden
  • 2004
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Abdominal aortic aneurysm (AAA) is a common problem with life-threatening consequences and was suspected to be a serious health problem in Norsjö, a municipality in northern Sweden. A screening study was undertaken to investigate the prevalence, risk factors associated with AAA and the effect of screening on quality of life (QoL). All men and women, aged 65-75 years, were invited to an ultrasonography (US) examination, 91% attended and 92 subjects were also evaluated with computed tomography (CT).Depending on diagnostic criteria, the AAA prevalence was 3.6-16.9% in men and 0.8-9.4% in women. Seventy-five percent of the differences between US- and CT anteroposterior measurements were less than 5 mm. A decrease in mental health was observed among AAA patients with low baseline SF-36 scale scores. Elevated cholesterol at age 60 years were associated with screening detected AAA after 12 years of follow-up. Smoking, atherosclerosis and having a first degree relative with AAA were associated with AAA at screening. Compared to blood samples obtained 12 years prior to screening an elevation of hsCRP over time was observed among AAA patients. Based on a systematic review of the literature, different screening strategies were analysed in a Markov cohort model. The cost per life year gained ranged from $8 309 to $14 084 and was estimated to $10 474 when 65 year old men were screened once.Conclusions: The highest prevalence of AAA ever reported, in a population-based screening program, was found in Norsjö. The risk of having an AAA at screening showed a strong but complex association with atherosclerosis and its risk factors, genetic and inflammatory mechanisms may also be important. Screening 65-year-old men for AAA may be cost-effective, but QoL aspects on the cost-effectiveness of AAA screening merits further investigation.
  •  
3.
  • Gumerova, Nadiia I., et al. (författare)
  • The Smallest Polyoxotungstate Retained by TRIS-Stabilization
  • 2021
  • Ingår i: Inorganic Chemistry. - : American Chemical Society (ACS). - 0020-1669 .- 1520-510X. ; 60:17, s. 12671-12675
  • Tidskriftsartikel (refereegranskat)abstract
    • A polycondensation reaction of the orthotungstate anion WO42–, buffered at pH 7.5 in a TRIS-HCl (0.15 M) solution, results in the first example of a discrete polyoxotungstate anion, with just two W ions stabilized with TRIS ligands. It was isolated and characterized as Na2[WVI2O6(C4O3NH10)2]·6H2O by single-crystal and powder X-ray diffraction, FT-IR spectroscopy, thermogravimetrical analysis (TGA), and elemental analysis in solid state and by electro-spray ionization mass spectrometry (ESI-MS), 13C, and 183W NMR, as well as Raman spectroscopy in solution. This synthesis demonstrates the crucial and new role of the added tris-alkoxy ligand in the development of a new hybrid TRIS-isopolytungstate with the lowest known nuclearity (so far) and the terminal oxygens substituted with two nitrogen atoms arising from amines of the TRIS ligands.
  •  
4.
  •  
5.
  •  
6.
  • Ekström, Mats, 1961, et al. (författare)
  • Conversation analysis and power: Examining the descendants and antecedents of social action
  • 2023
  • Ingår i: Frontiers in Sociology. - 2297-7775. ; 8
  • Tidskriftsartikel (refereegranskat)abstract
    • Conversation Analysis (CA) tends to adopt an ambivalent attitude to the concept of power. The concept is fundamental in sociology but secondary or even disregarded in CA. A closer look at research and the conceptual foundations of CA however demonstrate significant contributions to theories of power. In this paper we aim to demonstrate and discuss these contributions, however, also arguing for an expansion of the CA approach in dialogue with sociological theories to engage in the sociological analysis of power as an essential feature of social relationships and social organisation. Based on a general definition of power, as the transformative capacities of social agents in virtue of their social relationships, we discuss how power is interactionally achieved and negotiated, but also conditioned by social institutions and structures that extend beyond the contexts of situated encounters. The paper is divided into two main sections. The first section presents central contributions of CA in relation to the distinctions between power over and power to, authority as a legitimate form of power, and deontics as a key concept in the analysis of power. The second section critically considers the tendency in CA to localize power solely to actions in interaction, and to conflate structure and action, which constraints the analysis and explanations of power. We present examples of how analyses of power, grounded in CA, can be extended to account for the dynamics of social structures and realities beyond the interactional encounters.
  •  
7.
  •  
8.
  • Ekblom, Björn (författare)
  • Hade artrosen kunnat förebyggas?
  • 2004
  • Ingår i: Läkartidningen. - 0023-7205 .- 1652-7518. ; 101:40, s. 3098-
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
  •  
9.
  • Fiorenzi, Marco, et al. (författare)
  • Enhancing TCP over HSDPA by cross-layer signalling
  • 2007
  • Ingår i: GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE. - 9781424410422 ; , s. 5362-5366
  • Konferensbidrag (refereegranskat)abstract
    • A comprehensive performance evaluation of a cross-layer solution to increase users' downlink data rates over HSDPA is provided. The solution consists of a proxy entity between a server and the Radio Network Controller, and cross-layer signalling from the base station to the proxy. The performance of the solution is evaluated though a detailed ns-2 simulator environment, which includes all HSDPA features, as well as some existing TCP enhancing protocols widely adopted for internet traffic over wireless links. Numerical results show that the proxy significantly increases the users' throughput, while also improving the utilization of the radio resources.
  •  
10.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 310804
Typ av publikation
tidskriftsartikel (170802)
konferensbidrag (54382)
bokkapitel (24001)
doktorsavhandling (16485)
rapport (13906)
annan publikation (9020)
visa fler...
forskningsöversikt (4725)
bok (4685)
recension (4466)
licentiatavhandling (3345)
samlingsverk (redaktörskap) (3298)
konstnärligt arbete (1358)
proceedings (redaktörskap) (596)
patent (290)
visa färre...
Typ av innehåll
refereegranskat (202691)
övrigt vetenskapligt/konstnärligt (94459)
populärvet., debatt m.m. (13388)
Författare/redaktör
Zetterberg, Henrik, ... (472)
Harrison, Dick (401)
Blennow, Kaj, 1958 (396)
Linderson, Hans (395)
Zwalinski, L. (387)
Kupsc, Andrzej (384)
visa fler...
aut (375)
Johansson, Tord (338)
Strandberg, Jonas (327)
Ekelöf, Tord (318)
Wolke, Magnus (315)
Aad, G (312)
Brenner, Richard (309)
Ellert, Mattias (304)
He, Sailing (267)
Ripellino, Giulia (266)
Ablikim, M. (265)
Ferrari, Arnaud, 197 ... (261)
Sundén, Bengt (261)
Bergeås Kuutmann, El ... (258)
Nilsson, Peter (253)
Larsson, Anders (250)
Lund-Jensen, Bengt (238)
Adlarson, Patrik (236)
Schönning, Karin, 19 ... (230)
Lundälv, Jörgen, 196 ... (227)
Zou, J. H. (227)
Ågren, Hans (217)
Zhang, L. (216)
Bohm, Christian (212)
Ellajosyula, Venugop ... (212)
Zhang, J. (208)
Asimakopoulou, Eleni ... (202)
Winblad, B (202)
Hansson, Anton (202)
Olsson, T (199)
Wang, Y. (195)
Ottersten, Björn, 19 ... (195)
Pettersson, Joachim (193)
Lind, Lars (193)
Silverstein, Samuel ... (190)
Sundquist, Kristina (189)
Hellman, Sten (184)
Zhang, Y. (184)
Moa, Torbjörn (183)
Acharya, S (183)
Zhang, Z. (180)
Chen, Deliang, 1961 (180)
Sundquist, Jan (180)
Liu, Y. (178)
visa färre...
Lärosäte
Uppsala universitet (49311)
Lunds universitet (41512)
Karolinska Institutet (40690)
Göteborgs universitet (29620)
Kungliga Tekniska Högskolan (27744)
Stockholms universitet (22258)
visa fler...
Linköpings universitet (19215)
Chalmers tekniska högskola (17523)
Umeå universitet (15959)
Luleå tekniska universitet (10301)
Sveriges Lantbruksuniversitet (8352)
Linnéuniversitetet (7795)
Örebro universitet (7262)
Jönköping University (4888)
RISE (4636)
Karlstads universitet (4582)
Mittuniversitetet (4396)
Malmö universitet (3793)
Mälardalens universitet (3684)
Södertörns högskola (3470)
Högskolan Dalarna (2827)
Högskolan Kristianstad (2578)
Högskolan i Gävle (2393)
Högskolan i Halmstad (2238)
Högskolan i Borås (2123)
VTI - Statens väg- och transportforskningsinstitut (1727)
Blekinge Tekniska Högskola (1571)
Handelshögskolan i Stockholm (1379)
Naturvårdsverket (1354)
Högskolan i Skövde (1332)
Högskolan Väst (1169)
Riksantikvarieämbetet (1083)
Försvarshögskolan (765)
Naturhistoriska riksmuseet (732)
Gymnastik- och idrottshögskolan (677)
Marie Cederschiöld högskola (548)
IVL Svenska Miljöinstitutet (548)
Nordiska Afrikainstitutet (385)
Institutet för språk och folkminnen (356)
Röda Korsets Högskola (249)
Konstfack (245)
Enskilda Högskolan Stockholm (203)
Sophiahemmet Högskola (195)
Kungl. Musikhögskolan (147)
Havs- och vattenmyndigheten (100)
Stockholms konstnärliga högskola (86)
Nationalmuseum (85)
Kungl. Konsthögskolan (48)
visa färre...
Språk
Engelska (269864)
Svenska (36981)
Tyska (803)
Franska (529)
Spanska (393)
Danska (381)
visa fler...
Norska (344)
Finska (208)
Italienska (189)
Portugisiska (129)
Polska (125)
Ryska (120)
Nederländska (90)
Kinesiska (86)
Odefinierat språk (62)
Nygrekiska (55)
Arabiska (45)
Japanska (44)
Turkiska (41)
Ukrainska (35)
Isländska (30)
Ungerska (23)
Lettiska (22)
Estniska (21)
Persiska (14)
Hindi (14)
Koreanska (13)
Rumänska (12)
Kroatiska (12)
Serbiska (11)
Annat språk (11)
Tjeckiska (9)
Albanska (9)
Esperanto (9)
Bulgariska (6)
Latin (5)
Litauiska (5)
Nynorsk (5)
Katalanska (5)
Grekiska, klassisk (4)
Samiska (4)
Bosniska (3)
Baluchi (3)
Slovenska (2)
Swahili (2)
Mongoliskt språk (2)
Indonesiska (2)
Hebreiska (1)
Kurdiska (1)
Slovakiska (1)
Somaliska (1)
Bengali (1)
Vietnamesiska (1)
Frisiska (1)
Spanjolska (1)
Kazakiska (1)
visa färre...
Forskningsämne (UKÄ/SCB)
Naturvetenskap (76667)
Samhällsvetenskap (72650)
Medicin och hälsovetenskap (67268)
Teknik (46830)
Humaniora (34683)
Lantbruksvetenskap (9931)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy