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  • Chemistry  (28)
  • Engineering  (5)
  • 23.20.Lv  (3)
  • Apolipoprotein B-100  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Identification and spectroscopy of the108Te nucleus (1994)
    Springer
    The European physical journal 350 (1994), S. 3-4 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Lv ; 25.70.Gh ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Excited states of 108 Te were populated in the 54 Fe + 58 Ni (270 MeV) reaction using the NORDBALL detector array equipped with charged-particle and neutron detector systems for reaction channel separation. Gamma rays belonging to the neutron deficient nucleus 108 Te were identified for the first time. On the basis of γγ-coincidence and angular correlation relations a level scheme was constructed with tentative spin and parity assignments. The structure of the nucleus is discussed in the framework of systematics of heavier Te nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01285042
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Elevated triglyceride-rich lipoproteins in diabetes (1996)
    Springer
    Acta diabetologica 33 (1996), S. 205-210 
    Details
    ISSN: 1432-5233
    Keywords: Key words Apolipoprotein B-48 ; Apolipoprotein B-100 ; Triglyceride-rich lipoprotein ; Non-insulin-dependent ; diabetes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The role of the intestine in cholesterol metabolism in human diabetes is unclear, although abnormalities have been demonstrated in cholesterol synthesis and absorption in diabetic animals. This study examines the relationship between fasting and post-prandial apolipoprotein B-48 in type 2 (non-insulin-dependent) diabetic and non-diabetic subjects. Eight type 2 diabetic patients and ten healthy non-diabetic control subjects were given a high-fat meal (1300 kcal), and the triglyceride-rich lipoprotein fraction was isolated by ultracentrifugation (d〈1.006 g/ml) from fasting and post-prandial plasma. Apolipoprotein B-48 and apo B-100 were separated on 4%–15% gradient gels and quantified by densitometric scanning with reference to a purified low-density lipoprotein (LDL) apo B-100 preparation. Diabetic patients had significantly higher concentrations of apo B-48 and apo B-100 in both the fasting (P〈0.05) and post-prandial (P〈0.001) triglyceride-rich lipoprotein samples compared with non-diabetic subjects. The diabetic patients also exhibited a significantly different post-prandial profile for apo B-48 and apo B-100, with a prolonged increase and a later post-prandial peak, than the non-diabetic subjects (P〈0.01). These results suggest that the raised fasting triglyceride-rich lipoproteins, often found in diabetes, are associated with apo B-48 and may be derived from increased intestinal chylomicron production. The post-prandial pattern suggests an abnormality in intestinal production as well as hepatic clearance of apo B-48 in type 2 diabetes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02048544
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Elevated triglyceride-rich lipoproteins in diabetes (1996)
    Springer
    Acta diabetologica 33 (1996), S. 205-210 
    Details
    ISSN: 1432-5233
    Keywords: Apolipoprotein B-48 ; Apolipoprotein B-100 ; Triglyceride-rich lipoprotein ; Non-insulin-dependent diabetes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The role of the intestine in cholesterol metabolism in human diabetes in unclear, although abnormalities have been demonstrated in cholesterol synthesis and absorption in diabetic animals. This study examines the relationship between fasting and post-prandial apolipoprotein B-48 in type 2 (non-insulin-dependent) diabetic and non-diabetic subjects. Eight type 2 diabetic patients and ten healthy non-diabetic control subjects were given a high-fat meal (1300 kcal), and the triglyceride-rich lipoprotein fraction was isolated by ultracentrifugation (d〈1.006 g/ml) from fasting and post-prandial plasma. Apolipoprotein B-48 and apo B-100 were separated on 4%–15% gradient gels and quantified by densitometric scanning with reference to a purified low-density lipoprotein (LDL) apo B-100 preparation. Diabetic patients had significantly higher concentrations of apo B-48 and apo B-100 in both the fasting (P〈0.05) and post-prandial (P〈0.001) triglyceride-rich lipoprotein samples compared with non-diabetic subjects. The diabetic patients also exhibited a significantly different post-prandial profile for apo B-48 and apo B-100, with a prolonged increase and a later post-prandial peak, than the non-diabetic subjects (P〈0.01). These results suggest that the raised fasting triglyceride-rich lipoproteins, often found in diabetes, are associated with apo B-48 and may be derived from increased intestinal chylomicron production. The post-prandial pattern suggests an abnormality in intestinal production as well as hepatic clearance of apo B-48 in type 2 diabetes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02048544
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    In-beamγ-ray spectroscopy of102In (1993)
    Springer
    The European physical journal 345 (1993), S. 243-244 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Lv ; 25.70.Gh ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Neutron deficient nuclei close to 100Snhave been investigated in-beam by γ-ray spectroscopic methods using the NORDBALL detector array. A beam of 270 MeV 58Niwas used to bombard a target of 54Fe.Reaction channel separation was achieved with a 4π charged particle multidetector setup together with a 1π neutron detector wall placed in the forward direction. Excited states of 102Inwere identified for the first time. The level scheme constructed from γ-γ-particle-coincidence and γ-γ-angular correlation analysis is presented. The structure of 102 In is discussed and compared to neighboring nuclei in the framework of the nuclear shell-model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01293351
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Excited states of111I and the observation of a 21 ns isomer (1994)
    Springer
    The European physical journal 350 (1994), S. 179-180 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Lv ; 25.70.Gh ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Proton rich nuclei close to 100 Sn have been investigated inbeam using the NORDBALL detector array. A beam of 270 MeV58 Ni was used to bombard a 54 Fe target. Reaction channel separation was achieved with a 4π charged particle multi-detector set-up together with a 1π neutron detector wall placed in the forward direction. Gamma-ray transitions belonging to the 111 I nucleus were identified for the first time. A level scheme constructed from γ-γ-particle-coincidence analysis is proposed. The level structure is discussed within the framework of the shell model and the systematics of the heavier odd iodine nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289577
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    On the accuracy of polynomial finite elements for crack problems (1981)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 17 (1981), S. 1835-1842 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A square tensile sheet with symmetric edge cracks is analysed by the finite element method to demonstrate the accuracy obtained with polynomial elements when the mesh patterns are chosen on the basis of the element's interpolation functions. Numerical results are provided for the accuracy of the total strain energy, the stress intensity factor, and the numerical condition of the global stiffness matrix. The stress intensity factor is determined to within 1.0 per cent accuracy using quadratic (linear strain) triangular elements with only 138 degrees-of-freedom.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620171208
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    A note on equations of time (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 410-412 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690010321
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Experimental investigation of polarization effects in reverse osmosis (1974)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 20 (1974), S. 966-974 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: With a Mach-Zehnder interferometer, salt concentration profiles were measured in a reverse osmosis system under natural convection with the membrane in a vertical position. The measured concentration profiles compared favorably with those predicted theoretically as long as the motion remained laminar. At large distances from the leading edge, however, the flow developed a wavy pattern, especially for bulk salt concentrations in excess of 0.1 moles/liter. As expected, whenever this motion became especially pronounced, the concentration of salt at the membrane surface was less and the production rate of fresh water greater than that predicted using the laminar analysis.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690200518
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Approximate equations for time of batch fractionation (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 111-117 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Analytical expressions are obtained for the calculation of the time required for batch rectification of binary feeds which may be treated by assuming constant relative volatility and no column holdup. The equations cover constant reflux operations and varying reflux constant product operations for the two cases involving either a large or a small number of theoretical stages. The latter type of calculation has hitherto been possible only by tedious graphical methods. This paper introduces novel pseudoequilibrium curves which lead to simple equations of considerable accuracy. The equations obtained may be rearranged or modified so that other factors such as sharpness of fractionation may be represented analytically.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690010117
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Numerical solution of the Navier-Stokes equation for flow past spheres: Part II. Viscous flow around circulating spheres of low viscosity (1967)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 13 (1967), S. 220-224 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Steady state solutions of the Navier-Stokes equations for Reynolds numbers of 0.1, 1, 50, 100, and 200 have been obtained by using finite-difference methods. The effects of radial and angular step size and wall proximity have been investigated. Results were found in the form of stream function and vorticity distributions with pressure distributions and drag coefficients calculated from them. The results compare favorably with experimental data and show a steady trend from Hadamard-Rybczynski flow to boundary-layer flow after Levich-Chao-Moore. For a circulating sphere of low viscosity there is no flow separation indicated at Reynolds numbers equal to or less than 200.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690130207
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