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  • 1
    Digitale Medien
    Digitale Medien
    Protopine-N-oxide, an alkaloid from Bocconia cordata
    Amsterdam : Elsevier
    Phytochemistry 22 (1983), S. 627-628 
    Details
    ISSN: 0031-9422
    Schlagwort(e): Bocconia cordata ; Papaveraceae ; alkaloids ; protopine-type N-oxide
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/0031-9422(83)83076-3
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  • 2
    Digitale Medien
    Digitale Medien
    Protopine-N-oxide, an alkaloid from Bocconia cordata
    Amsterdam : Elsevier
    Phytochemistry 22 (1983), S. 627-628 
    Details
    ISSN: 0031-9422
    Schlagwort(e): Bocconia cordata ; Papaveraceae ; alkaloids ; protopine-type N-oxide.
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0031-9422(83)83076-3
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Effects of fructose ingestion on sorbitol and fructose 3-phosphate contents of erythrocytes from healthy men (1996)
    Springer
    Acta diabetologica 33 (1996), S. 100-102 
    Details
    ISSN: 1432-5233
    Schlagwort(e): Fructose 3-phosphate ; Sorbitol ; Erythrocyte ; Glycosylation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract To investigate the effect of fructose ingestion on sorbitol and fructose 3-phosphate (F3P) in erythrocytes, we administered 50 g fructose with and without treatment with an aldose reductase inhibitor, epalrestat, to seven healthy, normal-glucose-tolerant, male volunteers aged 20–43 years. The same subjects were given 50 g glucose on another day. The sorbitol and F3P contents in their erythrocytes increased significantly, reaching peak levels at 60 min and 180 min, respectively, following fructose ingestion. On the other hand, glucose ingestion did not cause any statistically significant change in sorbitol content in their erythrocytes, although it significantly elevated their F3P content. Treatment with epalrestat had no significant effect on incremental changes in erythrocyte sorbitol and F3P content following fructose ingestion. This suggests that oral fructose may be converted directly to sorbitol and F3P in erythrocytes instead of being converted via glucose. Thus, the dietary intake of fructose may affect the concentrations of sorbitol and F3P in erythrocytes in normal men.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00569417
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  • 4
    Digitale Medien
    Digitale Medien
    Effects of fructose ingestion on sorbitol and fructose 3-phosphate contents of erythrocytes from healthy men (1996)
    Springer
    Acta diabetologica 33 (1996), S. 100-102 
    Details
    ISSN: 1432-5233
    Schlagwort(e): Key words  Fructose 3-phosphate ; Sorbitol ; Erythrocyte ; Glycosylation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract   To investigate the effect of fructose ingestion on sorbitol and fructose 3-phosphate (F3P) in erythrocytes, we administered 50 g fructose with and without treatment with an aldose reductase inhibitor, epalrestat, to seven healthy, normal-glucose-tolerant, male volunteers aged 20–43 years. The same subjects were given 50 g glucose on another day. The sorbitol and F3P contents in their erythrocytes increased significantly, reaching peak levels at 60 min and 180 min, respectively, following fructose ingestion. On the other hand, glucose ingestion did not cause any statistically significant change in sorbitol content in their erythrocytes, although it significantly elevated their F3P content. Treatment with epalrestat had no significant effect on incremental changes in erythrocyte sorbitol and F3P content following fructose ingestion. This suggests that oral fructose may be converted directly to sorbitol and F3P in erythrocytes instead of being converted via glucose. Thus, the dietary intake of fructose may affect the concentrations of sorbitol and F3P in erythrocytes in normal men.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00569417
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  • 5
    Digitale Medien
    Digitale Medien
    Surface Tension of HFC Refrigerant Mixtures (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 119-127 
    Details
    ISSN: 1572-9567
    Schlagwort(e): differential capillary-rise method ; mixtures ; R-410A ; R-410B ; R-407C ; R-404A ; R-507 ; refrigerants ; surface tension
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The surface tension of refrigerant mixtures, i.e., R-410A (50 mass% R-32/50 mass% R-125), R-410B (45 mass% R-32/55 mass% R-125), R-407C (23 mass% R-32/25 mass% R-125/52 mass% R-134a), R-404A (44 mass% R-125/52 mass% R-143a/4 mass% R-134a), and R-507 (50 mass% R-125/50 mass% R-143a), has been measured and correlated in the present study. Although the first three mixtures are very important as promising replacements for R-22 in air-conditioners and heat-pumps and the last two are promising replacements for R-502, surface tension data for these mixtures were not previously available. The measurements were conducted under conditions of coexistence of the sample liquid and its saturated vapor in equilibrium. The differential capillary rise method (DCRM) was used, with two glass capillaries with inner radii of 0.3034±0.0002 and 0.5717±0.0002 mm. The temperature range covered was from 273 to 323 K, and the uncertainty of measurements for surface tensions and temperatures is estimated to be at most ±0.2 mN·m−1 and ±20 mK, respectively. A mixing rule was selected for representing the temperature dependence of the resultant data. These data were successfully represented by a mixing rule using mass fraction based on the van der Waals correlation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1021482231102
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  • 6
    Digitale Medien
    Digitale Medien
    Experimental surface tensions for HFC-32, HCFC-124, HFC-125, HCFC-141b, HCFC-142b, and HFC-152a (1995)
    Springer
    International journal of thermophysics 16 (1995), S. 791-800 
    Details
    ISSN: 1572-9567
    Schlagwort(e): differential capillary-rise method ; HFC-32 ; HCFC-124 ; HFC-125 ; HCFC-141b ; HCFC-1426 ; HFC-152a ; refrigerants ; surface tension
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The surface tension of six alternative refrigerants, i.e., HFC-32 (CH, F, ). HCFC-124 (CHClFCF,), HFC-125 (CHF2CF3). HCFC-14lb ICH,CCI,F). HCFC-142b (CH3CCIF2), and HFC-152a (CH3CHF2), has been measured in the present study. The measurements were conducted under equilibrium conditions between the liquid and its saturated vapor. The differential capillary-rise method (DORM) used two glass capillaries, with inner radii of 0.3034 ± 0.0002 and 0.5717 ±0.0002 mm, respectively. Temperatures in the range from 270 to 340 K were considered. The accuracy of surface tension measurements is estimated to be within ±0.2 mN · m−1. The temperatures are accurate to within ±20 mK. The temperature dependence of the resultant data were successfully represented by van der Waals' correlations to within ±(1.1 mN m−1 for each substance. Available surface tension data are compared with the present data.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01438864
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