SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "LAR1:uu "

Sökning: LAR1:uu

  • Resultat 148521-148530 av 272258
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
148521.
  •  
148522.
  •  
148523.
  •  
148524.
  •  
148525.
  • Lindgren, Torsten, et al. (författare)
  • Digestive Functional Symptoms Among Commercial Pilots in Relation to Diet, Insomnia, and Lifestyle Factors
  • 2012
  • Ingår i: Aviation, Space and Environmental Medicine. - 0095-6562 .- 1943-4448. ; 83:9, s. 872-878
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The aim of our study was to identify associations between digestive symptoms among pilots and diet, insomnia, and lifestyle factors.Methods: A standardized questionnaire was mailed to all Stockholm pilots on duty in a Swedish airline company: 354 pilots and 564 office workers from the same company participated. Associations were analyzed by multiple logistic regressions with mutual adjustment.Results: Of the pilots, 9.9% reported poor appetite, 15.2% heartburn, 12.4% diarrhea, 62.1% bloating, 9.3% constipation, and 14.4% epigastralgia. Pilots reported more bloating and poor appetite compared with office workers. The prevalence of insomnia was 70.6% among pilots and 63.1% among office workers. Among pilots, insomnia was related to poor appetite, heartburn, diarrhea, bloating, constipation, and epigastralgia. There were no associations between insomnia and digestive symptoms among office workers. Among pilots, higher body mass index (BMI) was related to heartburn and smokers more often suffered from constipation. Frequent milk consumption was associated with heartburn and less constipation; female pilots suffered from more constipation. The number of years as an active pilot was negatively associated with epigastralgia and bloating.Conclusion: Insomnia and some digestive symptoms were more common among pilots than office workers. In addition to insomnia, BMI, smoking, female gender, and milk consumption were associated with some digestive symptoms. The strong association between insomnia and digestive symptoms among pilots, but not among office workers, suggests a stress component related to this occupation.
  •  
148526.
  •  
148527.
  • Lindgren, Torsten, et al. (författare)
  • Hearing status among cabin crew in a Swedish commercial airline company
  • 2009
  • Ingår i: International Archives of Occupational and Environmental Health. - : Springer Science and Business Media LLC. - 0340-0131 .- 1432-1246. ; 82:7, s. 887-892
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To study hearing loss in commercial airline cabin crew (CC). METHODS: Totally 155 male and 781 female CC (n = 936) in a Swedish airline company underwent repeated audiometric tests during 1974-2005. The last test was used to study hearing loss. The mean test values at 3, 4, 6 kHz were used for the ear with worse hearing loss. Data were compared with a Swedish population (n = 603) who were not occupationally exposed to noise. Equivalent noise levels (Leq) were measured in different aircraft. RESULTS: Leq was 78-84 dB (A), maximum A-weighted exposure was 114 dB. Median values for all ages were close to the reference group. No association was found between years of employment and hearing loss, when adjusting for age and gender by multiple logistic regression analysis. CONCLUSION: Cabin crew are exposed to equivalent noise levels below the current Swedish occupational standard, and have normal age-matched hearing threshold levels.
  •  
148528.
  • Lindgren, Torsten, et al. (författare)
  • Hearing status among commercial pilots in a Swedish airline company
  • 2008
  • Ingår i: International Journal of Audiology. - : Informa UK Limited. - 1499-2027 .- 1708-8186. ; 47:8, s. 515-9
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim was to study hearing impairment in commercial pilots. A total of 634 male and 30 female pilots (N=664) in a Swedish airline company underwent repeated audiological tests during the period 1974-2005. The last test was used to study hearing impairment. The mean values for the hearing test at 3, 4, and 6 kHz were used for the ear with worse hearing impairment. Data was compared with a general adult Swedish population (n=603) not occupationally exposed to noise. Equivalent noise levels gate to gate (Leq) were measured in the cockpit of different aircraft. Leq was 75-81 dB (A), peak exposures were 105 dB (A) from the cabin call signal. Median values were similar as in the reference group at all ages. There was no association between years of employment, tobacco smoking, and hearing impairment, when adjusted for age and gender by multiple logistic regressions analysis. In conclusion, pilots are exposed to equivalent noise levels below the current Swedish occupational standard of 85 dB (A), with short peak exposures above the standard, and have normal age-matched hearing thresholds.
  •  
148529.
  • Lindgren, Torbjörn, 1972- (författare)
  • In Search of the Holy Grail of Photoelectrochemistry : A Study of Thin Film Electrodes for Solar Hydrogen Generation
  • 2004
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Hydrogen is a wanted energy carrier in a future society less dependent of fossil fuels. This thesis investigates the possibilities of using solar energy to convert water into hydrogen and oxygen, so called artificial photosynthesis. Through this work multiple inexpensive and stable thin film semiconductor electrodes have been produced and used as solar energy absorbers and active sites for direct watersplitting in photoelectrochemical cells. The electrodes have mainly been of nanostructured metal oxide character but also nitrides have been studied. Detailed back ground theory on photoelectrochemistry of semiconductors for hydrogen evolution is given in the summary of the thesis.Nanostructured WO3 electrodes with a quantum yield close to unity were designed and photoelectrochemically characterized. Hematite, α-Fe2O3, nanorods were synthesized and characterized for the aim of water oxidation. The morphology of the hematite nanorods was found to be in favor of the traditional isotropic nanostructured electrodes. Moreover, a unique porous nitrogen doped TiO2 material, photoactive in visible light, was obtained by reactive sputtering. The nitrogen doped material has interesting photoelectrochemical properties and is also promising for related applications such as pollution degradation by photocatalysis. Polycrystalline indium nitride, InN, was produced by reactive sputtering. Electrodes of the as prepared InN as well as electrodes annealed in nitrogen were studied for the aim of photooxidation of water.The electrodes studied are interesting candidates as potential watersplitting electrodes in photoelectrochemical cells, even if all had in common that further improvements and optimizations need to be done.
  •  
148530.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 148521-148530 av 272258
Typ av publikation
tidskriftsartikel (153627)
doktorsavhandling (27080)
bokkapitel (24229)
konferensbidrag (24180)
annan publikation (10539)
recension (8789)
visa fler...
rapport (7052)
bok (6247)
forskningsöversikt (4474)
samlingsverk (redaktörskap) (3747)
licentiatavhandling (1408)
proceedings (redaktörskap) (554)
patent (304)
konstnärligt arbete (185)
visa färre...
Typ av innehåll
refereegranskat (161254)
övrigt vetenskapligt/konstnärligt (95666)
populärvet., debatt m.m. (15097)
Författare/redaktör
Ekelöf, Tord (1163)
Brenner, Richard (1123)
Ellert, Mattias (1108)
Larsson, Anders (1074)
Strandberg, Jonas (1052)
Zwalinski, L. (1022)
visa fler...
Bohm, Christian (906)
Abbott, B. (806)
Aad, G (774)
Silverstein, Samuel ... (756)
Kupsc, Andrzej (753)
Janson, Christer (731)
Lund-Jensen, Bengt (716)
Moa, Torbjörn (706)
Hellman, Sten (678)
Wolke, Magnus (666)
Zhu, J. (647)
Peters, K. (632)
Clement, Christophe (626)
Liu, Y. (620)
Sjölin, Jörgen (620)
Meyer, J. (613)
Zhou, B. (613)
Fox, H. (611)
Evans, H. (609)
Gutierrez, P. (608)
Brandt, A. (607)
Brock, R. (607)
Burdin, S. (607)
Kupco, A. (607)
Pleier, M. -A. (607)
Qian, J. (607)
Quadt, A. (607)
Sawyer, L. (607)
Stark, J. (607)
Borissov, G. (606)
Cooke, M. (606)
Kehoe, R. (606)
Lokajicek, M. (606)
Schwienhorst, R. (606)
Snyder, S. (606)
Watts, G. (606)
Khanov, A. (605)
Severini, H. (605)
Shabalina, E. (605)
Rizatdinova, F. (604)
Strauss, M. (604)
Fiedler, F. (603)
Hohlfeld, M. (603)
Tsybychev, D. (603)
visa färre...
Lärosäte
Uppsala universitet (272258)
Karolinska Institutet (17532)
Lunds universitet (6903)
Stockholms universitet (6540)
Kungliga Tekniska Högskolan (6288)
Umeå universitet (5283)
visa fler...
Göteborgs universitet (4908)
Linköpings universitet (4649)
Örebro universitet (2870)
Sveriges Lantbruksuniversitet (2232)
Högskolan Dalarna (1657)
Södertörns högskola (1380)
Linnéuniversitetet (1366)
Mälardalens universitet (1357)
Högskolan i Gävle (1185)
Chalmers tekniska högskola (1041)
Mittuniversitetet (848)
Karlstads universitet (848)
Luleå tekniska universitet (599)
Jönköping University (567)
RISE (449)
Malmö universitet (421)
Marie Cederschiöld högskola (374)
Högskolan i Skövde (283)
Försvarshögskolan (236)
Naturhistoriska riksmuseet (202)
Handelshögskolan i Stockholm (195)
Högskolan i Borås (171)
Nordiska Afrikainstitutet (165)
Högskolan i Halmstad (144)
Sophiahemmet Högskola (135)
Högskolan Kristianstad (133)
Gymnastik- och idrottshögskolan (131)
Röda Korsets Högskola (123)
Enskilda Högskolan Stockholm (117)
Institutet för språk och folkminnen (114)
Högskolan Väst (54)
Riksantikvarieämbetet (47)
Blekinge Tekniska Högskola (37)
VTI - Statens väg- och transportforskningsinstitut (22)
Kungl. Musikhögskolan (18)
Naturvårdsverket (11)
IVL Svenska Miljöinstitutet (11)
Konstfack (9)
Nationalmuseum (3)
Stockholms konstnärliga högskola (1)
Havs- och vattenmyndigheten (1)
visa färre...
Språk
Engelska (213145)
Svenska (39097)
Latin (11968)
Odefinierat språk (3147)
Tyska (1443)
Franska (894)
visa fler...
Spanska (324)
Ryska (303)
Norska (265)
Danska (261)
Polska (169)
Italienska (147)
Finska (136)
Nederländska (128)
Estniska (116)
Isländska (88)
Grekiska, klassisk (81)
Turkiska (61)
Japanska (47)
Esperanto (46)
Kinesiska (43)
Ungerska (40)
Persiska (39)
Portugisiska (37)
Hindi (29)
Lettiska (24)
Bulgariska (20)
Nygrekiska (14)
Arabiska (13)
Tjeckiska (13)
Kroatiska (12)
Nynorsk (12)
Koreanska (11)
Iriska (10)
Serbiska (8)
Albanska (8)
Ukrainska (7)
Baluchi (7)
Katalanska (6)
Flera språk (5)
Hebreiska (5)
Rumänska (5)
Kurdiska (5)
Slovakiska (5)
Bokmål (5)
Vietnamesiska (3)
Slovenska (1)
Färöiska (1)
Makedonska (1)
Swahili (1)
Mongoliskt språk (1)
Indonesiska (1)
visa färre...
Forskningsämne (UKÄ/SCB)
Naturvetenskap (59348)
Medicin och hälsovetenskap (44519)
Humaniora (43146)
Samhällsvetenskap (37793)
Teknik (11350)
Lantbruksvetenskap (1856)

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