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  • 1
    Electronic Resource
    Electronic Resource
    Postadministration of oral contrast material for abdominal CT in patients with gastrectomy: modified drip ingestion method (1999)
    Springer
    Abdominal imaging 24 (1999), S. 223-225 
    Details
    ISSN: 1432-0509
    Keywords: Key words: CT, abdomen—Contrast agent, administration—Gastrointestinal tract.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We introduce the modified drip ingestion method (MDIM) of administering oral contrast material for abdominal computed tomography (CT) in patients after gastrectomy. MDIM consists of the drip ingestion method, which we have recently reported, with additional ingestion of effervescent agent. MDIM in abdominal CT is a useful technique to improve the degree of distention of the gastrointestinal lumen including anastomotic sites in patients after gastrectomy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900484
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  • 2
    Electronic Resource
    Electronic Resource
    Lymphoepithelial cysts of the pancreas: CT and sonographic findings (1998)
    Springer
    Abdominal imaging 23 (1998), S. 185-187 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Pancreas, cyst—Pancreas—Computed tomography—Ultrasonography.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Two cases of rare lymphoepithelial cyst (LEC) of the pancreas are presented. Although the histogenesis of this lesion is not known, it can be histologically differentiated from other pancreatic and retropancreatic cysts. The importance of its recognition is in the distinction from cystic neoplasm of the pancreas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900318
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  • 3
    Electronic Resource
    Electronic Resource
    Delayed interval delivery in multiple gestations (2000)
    Springer
    Archives of gynecology and obstetrics 263 (2000), S. 185-187 
    Details
    ISSN: 1432-0711
    Keywords: Key words Delayed interval delivery ; Multiple pregnancy ; Twin pregnancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Two multiple pregnancies with delayed delivery after expulsion of dead fetus are presented. Case 1: A woman with a twin pregnancy and one intrauterine fetal death at 20 weeks’ gestation delivered a dead fetus at 27 weeks’ gestation. She delivered a healthy male infant weighing 2430 g at 33 weeks’ gestation (42 d after the delivery of the first twin). Case 2: A woman with quadruplets pregnancy (2 live fetuses, one empty sac, and one fetocide at 7 weeks’ gestation) got a intrauterine fetal death at 21 weeks’ gestation at one fetus among 2 live fetuses and delivered a dead fetus at 24 weeks’ gestation. She delivered a healthy female infant weighing 2110 g at 33 weeks’ gestation (58 d after the delivery of a dead fetus). On the basis of our experience and the review of literature, delayed delivery with careful observation of fetal and maternal condition is recommended for improved survival and decreased morbidity among latter-born siblings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004040050279
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  • 4
    Electronic Resource
    Electronic Resource
    Rotational energy distribution of products in fast hydrogen atom–molecule collisions (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 5486-5492 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Starting from the formalism of collisional time-correlation functions, an expression is derived for the double differential cross section (with respect to scattering angles and final rotational energies) of molecules with a thermal distribution of initial rotational states, colliding with fast atoms. This expression is valid when the duration of the collision is short compared with the periods of internal motions of target molecules. The formulation leads to simple distributions in terms of error functions, which can be used to parametrize experimental results. The parameters in turn give the average rotational energy and its standard deviation for the final state. This procedure is followed to interpret recent experimental measurements of the final rotational distributions of CO and CO2 colliding with fast hydrogen atoms obtained from the photolysis of hydrides. For CO(v=1) and CO2(0001), in which the collisions are impulsive, the derived formula fits the experimental distribution very well. For CO(v=0), in which long-duration, complex-forming collisions play an important role, an additional statistical distribution can be introduced to satisfactorily explain the experimental results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456453
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  • 5
    Electronic Resource
    Electronic Resource
    Thermal Stability of the Pigments Hydroxysafflor Yellow A, Safflor Yellow B, and Precarthamin from Safflower (Carthamus tinctorius) (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 68 (2003), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Three major yellow pigments were isolated from safflower petals (Carthamus tinctorius) and characterized as hydroxysafflor yellow A (1), safflor yellow B (2), and precarthamin (3) by 1H-NMR, 1H-1H COSY, 13C-NMR, HMQC, and HMBC spectral analysis. Thermal degradation reactions of 3 yellow pigments 1 to 3 at temperatures of 70 to 90 °C were carried out at different pH levels within the range of 3.0 to 10.0 by UV-vis spectral measurements. First-order reaction kinetics was observed for the degradation of safflower yellow pigments (1 to 3) at pH 3.0 and 5.0. Activation energies of thermal degradation of 1-3 at pH 5.0 were calculated as 17.0, 15.4, and 20.1 kcal/mol, respectively. At neutral and alkaline conditions, yellow pigments 1-3 did not follow simple first-order kinetics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2003.tb08252.x
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  • 6
    Electronic Resource
    Electronic Resource
    Fluorescence anisotropy studies on the interaction of the short chain n-alkanols with stratum corneum lipid liposomes (SCLL) and distearoylphosphatidylcholine (DSPC)/distearoylphosphatidic acid (DSPA) liposomes
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 1148 (1993), S. 139-151 
    Details
    ISSN: 0005-2736
    Keywords: Enhancement factor ; Fluidity ; Fluorescence anisotropy ; Fluorescence lifetime ; Short chain n-alkanol ; Stratum corneum lipid liposome
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(93)90171-U
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  • 7
    Electronic Resource
    Electronic Resource
    Intramolecular energy flow and bond dissociation in iodoacetylene and iododiacetylene (1994)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 101 (1994), S. 4668-4681 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Intermolecular and intramolecular energy flow and subsequent bond dissociation in collinear collisions I–C≡C–H+Ar and I–C≡C–C≡C–H+Ar have been studied by classical trajectory techniques over the collision energy range of 0 to 10 eV. When the molecule is initially in the ground state, the overall energy transfer in I–C≡C–H+Ar is very small, but in I–C≡C–C≡C–H+Ar it is large. The collisionally perturbed C–H bond stores a large amount of energy from translation for a brief period during the early stage of collision and transfers most of it to the inner region of the molecule, specifically to the low frequency C–I vibration. Thus the high-frequency vibration of the perturbed C–H bond during the collision plays a crucial role in determining the extent of intramolecular energy transfer and, in turn, C–I dissociation. But in nondissociative collisions, there is another series of the C–H vibration at the latter stage of collision, transferring energy back to translation. This study also considers collision-induced intramolecular energy flow in the molecule with an initially excited C–H bond. The relaxation of the low-lying C–H excitation is very slow on a nanosecond time scale. However, when the excitation is high, the vibrational frequency of the C–H bond is significantly weakened, thus becoming comparable to that of the triple bond, in which case the isolating effect of the adjacent C≡C bond is no longer important and intramolecular energy flow becomes efficient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.467456
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  • 8
    Electronic Resource
    Electronic Resource
    Exponential temperature dependence of the critical transport current in Y-Ba-Cu-O thin films (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 2370-2372 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have measured the critical currents in rf-sputtered YBa2Cu3O7−x thin films deposited on polycrystalline yttria-stabilized zirconia substrates as a function of temperature down to 10 K. The dependence of the granular films at low temperature indicated exponential behavior which is similar to the superconductor-normal metal-superconductor (S-N-S) type tunneling junctions. For the films with a grain size of approximately 1 μm, we observed two exponential decay constants, which suggest that Josephson junctions limiting the transport critical current are possible both at the grain boundaries and at twin boundaries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101531
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  • 9
    Electronic Resource
    Electronic Resource
    New modelling of complex fish migration by application of chaos theory and neural network (2003)
    Oxford, UK; Malden, USA : Blackwell Science Ltd/Inc
    Journal of fish biology 63 (2003), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Rules or patterns of movement or migration were still vague even for the main commercial fishes due to different routs in scale or in different, times resulting from complex environments to complex behaviour concept. The quantitative model of fish migration has been investigated using chaos theory to mimic more realistic fish movements by time steps from environmental and biological stimuli. The model uses three steps within a model neural network such as input stimuli, central decision-making and response output in fish movements. The stimuli in the first step include the main physical (temperature, salinity, light, flow etc.) and biotic factors (prey, predator, life cycle etc.) which could be quantified as intensity parameters which were then normalized as ratios. The decision-making process can be generated available signals for motor neuron using Lorenz chaos equations by the relevant stimuli. The response of fish movements from the output signal representing speed and direction can be re-regulated as object-oriented migration depending on physiological state or life cycle by third response filtering. The simulation results seen as 2-dimensional seasonal migration for demersal fishes in the southern sea of the Korean Peninsula represented more realistic meandering tracks than the interpolated tracks in previous reports.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2003.0216s.x
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  • 10
    Electronic Resource
    Electronic Resource
    Reaction of atomic oxygen with adsorbed carbon monoxide on a platinum surface (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 742-757 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The reaction of gas-phase oxygen atoms with carbon monoxide molecules adsorbed on a platinum surface is studied by the use of the classical trajectory approach. Collisions taking place at gas temperature 300 K are considered as a function of the incident angle. Gas atoms approaching CO in the angle range of 0°–50° are very efficient at producing vibrationally excited CO2 molecules in the gas phase. Beyond 50°, the extent of desorbing CO2 formation decreases rapidly and becomes negligible as the incident angle approaches 90°. Most of the exothermicity of the reaction O+CO→CO2 minus the CO–surface-binding energy appears to be transferred to the asymmetric stretching vibration of the desorbing CO2. The fraction of reactive collisions producing molecules having vibrational energies corresponding to levels v3=9 to 13 is found to be very high and exhibits a vibrational population inversion. Molecular time scale trajectory calculations show that relatively few atoms making up the solid are needed to obtain reliable data on energy transfer to the solid. The behavior of ensembles at various reaction times is discussed in detail. The surface is considered to be at 0 K. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470799
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