SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Wang Q) "

Sökning: WFRF:(Wang Q)

  • Resultat 1821-1830 av 2219
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1821.
  •  
1822.
  •  
1823.
  •  
1824.
  •  
1825.
  •  
1826.
  •  
1827.
  •  
1828.
  •  
1829.
  • Mueller, T., et al. (författare)
  • Characterization and intercomparison of aerosol absorption photometers : result of two intercomparison workshops
  • 2011
  • Ingår i: Atmospheric Measurement Techniques. - : Copernicus GmbH. - 1867-1381 .- 1867-8548. ; 4:2, s. 245-268
  • Tidskriftsartikel (refereegranskat)abstract
    • Absorption photometers for real time application have been available since the 1980s, but the use of filter-based instruments to derive information on aerosol properties (absorption coefficient and black carbon, BC) is still a matter of debate. Several workshops have been conducted to investigate the performance of individual instruments over the intervening years. Two workshops with large sets of aerosol absorption photometers were conducted in 2005 and 2007. The data from these instruments were corrected using existing methods before further analysis. The inter-comparison shows a large variation between the responses to absorbing aerosol particles for different types of instruments. The unit to unit variability between instruments can be up to 30% for Particle Soot Absorption Photometers (PSAPs) and Aethalometers. Multi Angle Absorption Photometers (MAAPs) showed a variability of less than 5%. Reasons for the high variability were identified to be variations in sample flow and spot size. It was observed that different flow rates influence system performance with respect to response to absorption and instrumental noise. Measurements with non absorbing particles showed that the current corrections of a cross sensitivity to particle scattering are not sufficient. Remaining cross sensitivities were found to be a function of the total particle load on the filter. The large variation between the response to absorbing aerosol particles for different types of instruments indicates that current correction functions for absorption photometers are not adequate.
  •  
1830.
  • Muller, D. C., et al. (författare)
  • No association between circulating concentrations of vitamin D and risk of lung cancer : an analysis in 20 prospective studies in the Lung Cancer Cohort Consortium (LC3)
  • 2018
  • Ingår i: Annals of Oncology. - : Oxford University Press. - 0923-7534 .- 1569-8041. ; 29:6, s. 1468-1475
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: There is observational evidence suggesting that high vitamin D concentrations may protect against lung cancer. To investigate this hypothesis in detail, we measured circulating vitamin D concentrations in prediagnostic blood from 20 cohorts participating in the Lung Cancer Cohort Consortium (LC3).Patients and methods: The study included 5313 lung cancer cases and 5313 controls. Blood samples for the cases were collected, on average, 5 years before lung cancer diagnosis. Controls were individually matched to the cases by cohort, sex, age, race/ethnicity, date of blood collection, and smoking status in five categories. Liquid chromatography coupled with tandem mass spectrometry was used to separately analyze 25-hydroxyvitamin D2 [25(OH)D2] and 25-hydroxyvitamin D3 [25(OH)D3] and their concentrations were combined to give an overall measure of 25(OH)D. We used conditional logistic regression to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for 25(OH)D as both continuous and categorical variables.Results: Overall, no apparent association between 25(OH)D and risk of lung cancer was observed (multivariable adjusted OR for a doubling in concentration: 0.98, 95% CI: 0.91, 1.06). Similarly, we found no clear evidence of interaction by cohort, sex, age, smoking status, or histology.Conclusion: This study did not support an association between vitamin D concentrations and lung cancer risk.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1821-1830 av 2219
Typ av publikation
tidskriftsartikel (1937)
konferensbidrag (130)
forskningsöversikt (13)
annan publikation (2)
bokkapitel (2)
rapport (1)
visa fler...
proceedings (redaktörskap) (1)
visa färre...
Typ av innehåll
refereegranskat (2123)
övrigt vetenskapligt/konstnärligt (83)
Författare/redaktör
Zhou, B. (758)
Liu, Y. (753)
Meyer, J. (749)
Zhu, J. (747)
Fox, H. (745)
Qian, J. (745)
visa fler...
Evans, H. (743)
Kupco, A. (743)
Quadt, A. (743)
Sawyer, L. (743)
Snyder, S. (743)
Stark, J. (743)
Abbott, B. (742)
Brandt, A. (742)
Burdin, S. (742)
Khanov, A. (742)
Lokajicek, M. (742)
Neal, H. A. (742)
Pleier, M. -A. (742)
Watts, G. (742)
Borissov, G. (741)
Brock, R. (741)
Cooke, M. (741)
Fiedler, F. (741)
Kehoe, R. (741)
Strauss, M. (741)
Schwienhorst, R. (740)
Shabalina, E. (740)
Simak, V. (739)
Hohlfeld, M. (738)
Rizatdinova, F. (738)
Sanders, M. P. (738)
Severini, H. (738)
Tsybychev, D. (738)
Hubacek, Z. (737)
Filthaut, F. (734)
Nunnemann, T. (734)
Han, L. (733)
Schamberger, R. D. (733)
Denisov, S. P. (732)
Skubic, P. (728)
Gutierrez, P. (727)
Grivaz, J. -F. (727)
Zieminska, D. (726)
Vokac, P. (683)
Chakraborty, D. (680)
White, A. (680)
Peters, K. (670)
Lubatti, H. J. (665)
Buescher, V. (661)
visa färre...
Lärosäte
Uppsala universitet (869)
Karolinska Institutet (651)
Kungliga Tekniska Högskolan (559)
Lunds universitet (500)
Stockholms universitet (485)
Göteborgs universitet (197)
visa fler...
Chalmers tekniska högskola (141)
Linköpings universitet (51)
Umeå universitet (46)
Högskolan Dalarna (34)
RISE (28)
Mälardalens universitet (23)
Luleå tekniska universitet (14)
Mittuniversitetet (13)
Örebro universitet (11)
Högskolan i Halmstad (8)
Högskolan i Skövde (8)
Sveriges Lantbruksuniversitet (8)
Linnéuniversitetet (6)
Jönköping University (5)
Södertörns högskola (3)
Naturhistoriska riksmuseet (3)
Malmö universitet (2)
IVL Svenska Miljöinstitutet (2)
Högskolan i Gävle (1)
Handelshögskolan i Stockholm (1)
Högskolan i Borås (1)
Karlstads universitet (1)
visa färre...
Språk
Engelska (2212)
Kinesiska (5)
Svenska (1)
Odefinierat språk (1)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (1097)
Medicin och hälsovetenskap (258)
Teknik (189)
Samhällsvetenskap (11)
Lantbruksvetenskap (6)
Humaniora (2)

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