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Search: swepub > Chalmers University of Technology > (1990-1999)

  • Result 1-10 of 5719
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2.
  • Ljung, Lennart, 1946-, et al. (author)
  • Adaptive System Performance in the Frequency Domain
  • 1992
  • In: Adaptive systems in control and signal processing 1992. - Linköping : Linköping University. - 9780080425962 ; , s. 33-40
  • Conference paper (peer-reviewed)
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3.
  • Users in Action. Stories of Users and Telematics in Everyday Life
  • 1999
  • Editorial collection (other academic/artistic)abstract
    • Detta är en antologi som består av exempel på empiriska studier där äldre människors varit involverade som subjekt. Resultatet visar att äldres teknikanvändning i vardagen problematiseras på tre nivåer. den första nivån fokuserar konstruktionen och utformningen av artefakten; den andra nivån användningen av tekniken i den vardagliga kontexten; den tredje nivån relationen mellan teknikutvecklingen och användaren som samhällsvarelse.
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4.
  • Abel, Frida, 1974, et al. (author)
  • Gain of chromosome arm 17q is associated with unfavourable prognosis in neuroblastoma, but does not involve mutations in the somatostatin receptor 2(SSTR2) gene at 17q24.
  • 1999
  • In: British journal of cancer. - : Springer Science and Business Media LLC. - 0007-0920 .- 1532-1827. ; 81:8, s. 1402-9
  • Journal article (peer-reviewed)abstract
    • Deletion of chromosome arm 1p and amplification of the MYCN oncogene are well-recognized genetic alterations in neuroblastoma cells. Recently, another alteration has been reported; gain of the distal part of chromosome arm 17q. In this study 48 neuroblastoma tumours were successfully analysed for 17q status in relation to known genetic alterations. Chromosome 17 status was detected by fluorescence in situ hybridization (FISH). Thirty-one of the 48 neuroblastomas (65%) showed 17q gain, and this was significantly associated with poor prognosis. As previously reported, 17q gain was significantly associated with metastatic stage 4 neuroblastoma and more frequently detected than both deletion of chromosome arm 1p and MYCN amplification in tumours of all stages. 17q gain also showed a strong correlation to survival probability (P = 0.0009). However, the most significant correlation between 17q gain and survival probability was observed in children with low-stage tumours (stage 1, 2, 3 and 4S), with a survival probability of 100% at 5 years from diagnosis for children with tumours showing no 17q gain compared to 52.5% for those showing 17q gain (P = 0.0021). This suggests that 17q gain as a prognostic factor plays a more crucial role in low-stage tumours. Expression of the somatostatin receptor 2 (SSTR2), localized in chromosome region 17q24, has in previous studies been shown to be positively related to survival in neuroblastoma. A point mutation in the SSTR2 gene has earlier been reported in a human small-cell lung cancer. In this study, mutation screening of the SSTR2 gene in 43 neuroblastoma tumours was carried out with polymerase chain reaction-based single-stranded conformation polymorphism/heteroduplex (SSCP/HD) and DNA sequencing, and none of the tumours showed any aberrations in the SSTR2 gene. These data suggest that mutations in the SSTR2 gene are uncommon in neuroblastoma tumours and do not correlate with either the 17q gain often seen or the reason some tumours do not express SSTR2 receptors. Overall, this study indicates that gain of chromosome arm 17q is the most frequently occurring genetic alteration, and that it is associated with established prognostic factors.
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5.
  • Grange, Kristina, 1970 (author)
  • Kulturkrock eller brobygge?
  • 1998
  • In: Arkitektidningen. ; :10, s. 10-11:4, s. 16-18
  • Journal article (other academic/artistic)
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8.
  • Undeland, Ingrid, 1968, et al. (author)
  • Comparison between methods using low-toxicity solvents for the extraction of lipids from herring (Clupea harengus)
  • 1998
  • In: Food Chemistry. - 0308-8146 .- 1873-7072 .- 0346-718X. ; 61:3, s. 355-365
  • Journal article (peer-reviewed)abstract
    • Three alkane/alcohol/water-based lipid extraction systems were evaluated to determine which would be the best replacement for the frequently used chloroform/methanol/water system, nowadays known to be very toxic. All the methods were applied to samples of minced herring (Clupea harengus) differing in quality and composition. In addition to comparisons of total lipid yield, the extracted lipids were compared with respect to content of triglycerides, phospholipids, free fatty acids, ?-tocopherol, lipid hydroperoxides and conjugated dienes. The content of phospholipids was found to differ most between the lipids extracted by the four methods. Here, the chloroform/methanol/water system was the most efficient, followed by heptane/ethanol/water/sodium dodecyl sulphate (SDS) and then iso-propanol/hexane. However, by decreasing the level of SDS, the efficiency of the heptane/ethanol/water/SDS system in extracting phospholipids was increased to the same level as that of the chloroform/methanol/water system. This decrease in SDS also resulted in a higher recovery of free fatty acids. The lack of correlation between yields of phospholipids and yields of lipid oxidation products throughout this study was surprising because of the often-described susceptibility of phospholipids to oxidation.
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9.
  • Winter, Johannes, et al. (author)
  • Charge transfer in alkali-metal-doped polymeric fullerenes
  • 1996
  • In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 54, s. 17486-17492
  • Journal article (peer-reviewed)abstract
    • We present room-temperature Raman measurements of pressure-polymerized C60 and compare them with the spectra of RbC60 in the orthorhombic phase. Although both materials were prepared according to two completely different routes the spectra show a surprising similarity with respect to mode positions and line splitting. We concluded from this that both materials, the uncharged pressure-polymerized C60 and the rubidium-doped orthorhombic compound, have the same overall structure and the AC60 compounds can be considered as the doped species of the C60, polymerized using moderate low pressure and high temperatures. From a detailed comparison between both spectra mode shifting and line broadening as a consequence of the charge transfer was determined and electron-phonon coupling constants were estimated for the high-frequency Hg(7) and Hg(8) modes. The low values for the coupling constants compared to the ones in the K3C60 can explain the lack of superconductivity in the AC60 compounds.
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  • Result 1-10 of 5719
Type of publication
journal article (1772)
conference paper (1390)
licentiate thesis (857)
doctoral thesis (839)
reports (460)
other publication (163)
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book chapter (132)
book (70)
editorial collection (28)
research review (6)
patent (2)
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Type of content
other academic/artistic (2908)
peer-reviewed (2811)
Author/Editor
Wiberg, Nils-Erik, 1 ... (145)
Nordén, Bengt, 1945 (139)
Leckner, Bo G, 1936 (136)
Engström, Tomas, 195 ... (97)
Kildal, Per-Simon, 1 ... (89)
Lennartson, Bengt, 1 ... (76)
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Svensson, Arne, 1955 (72)
Skarnemark, Gunnar, ... (71)
Berntsson, Thore, 19 ... (70)
Medbo, Lars, 1957 (55)
Bengtsson, Stefan, 1 ... (53)
Panas, Itai, 1959 (51)
Gadde, Lars-Erik, 19 ... (46)
Gevorgian, Spartak, ... (43)
Löfdahl, Lennart, 19 ... (43)
Ottosson Gadd, Tony, ... (43)
Stemme, Göran, 1958 (43)
Skoglundh, Magnus, 1 ... (42)
Sandberg, Ann-Sofie, ... (41)
Åmand, Lars-Erik, 19 ... (41)
Fabian, Martin, 1960 (40)
Johansson, Mats, 195 ... (39)
Vamling, Lennart, 19 ... (39)
Runesson, Kenneth, 1 ... (38)
Viberg, Mats, 1961 (38)
Bohlin, Erik, 1961 (37)
Karlsson, Magnus, 19 ... (37)
Pedersen, Karsten, 1 ... (37)
Woxenius, Johan, 196 ... (36)
Jonson, Björn, 1941 (36)
Karlsson, MariAnne, ... (36)
Molander, Sverker, 1 ... (35)
Johnsson, Filip, 196 ... (34)
Larsson, Lars, 1945 (34)
Sipus, Zvonimir, 196 ... (34)
Nyman, Göran Hugo, 1 ... (33)
Tittus, Michael, 196 ... (33)
Nilsson, Thomas, 196 ... (32)
Patriksson, Michael, ... (32)
Samuelsson, Alf, 192 ... (32)
Cederwall, Martin, 1 ... (31)
Jacobsson, Per, 1958 (31)
Hedelin, Per, 1948 (31)
Riisager, K. (31)
Jonsson, Dan, 1942 (31)
Niklasson, Claes, 19 ... (30)
Enoksson, Peter, 195 ... (30)
Albinsson, Bo, 1963 (30)
Kollberg, Erik, 1937 (30)
Berbyuk, Viktor, 195 ... (30)
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University
Chalmers University of Technology  (5719)Undo refine
University of Gothenburg (491)
RISE (37)
Jönköping University (25)
Royal Institute of Technology (15)
Lund University (12)
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Uppsala University (11)
Luleå University of Technology (7)
Karolinska Institutet (7)
Linköping University (3)
VTI - The Swedish National Road and Transport Research Institute (3)
Halmstad University (2)
Mid Sweden University (2)
Linnaeus University (2)
Blekinge Institute of Technology (2)
Umeå University (1)
Stockholm University (1)
University West (1)
University of Skövde (1)
University of Borås (1)
Karlstad University (1)
Red Cross University College (1)
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Language
English (5345)
Swedish (348)
German (13)
French (6)
Russian (2)
Undefined language (2)
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Norwegian (1)
Spanish (1)
Japanese (1)
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Research subject (UKÄ/SCB)
Engineering and Technology (3219)
Natural sciences (2559)
Social Sciences (168)
Medical and Health Sciences (99)
Humanities (83)
Agricultural Sciences (50)

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