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  • 1
    Electronic Resource
    Electronic Resource
    Groin hernia: can dynamic magnetic resonance imaging be of help? (1998)
    Springer
    European radiology 8 (1998), S. 270-273 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Hernia ; inguinal ; MR technology ; Abdominal wall ; abnormalities
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. This technical note describes the use of dynamic MRI in the diagnosis of groin herniations. A review of the anatomy of the groin is presented and 4 representative cases are described. This paper indicates that dynamic MRI can be used to confirm the diagnosis in patients with clinically evident groin herniations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050377
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  • 2
    Electronic Resource
    Electronic Resource
    Masses and pain in the groin: a review of imaging findings (1998)
    Springer
    European radiology 8 (1998), S. 911-921 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Hip ; Inguinal hernia ; Abdomen ; Neoplasms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The inguinofemoral region is a crossroads of numerous vascular, nervous and muscular structures. As even the most astute clinician can have difficulty in correctly diagnosing the cause of complaints or a mass in the groin and thigh region, radiological investigation is frequently warranted. For the radiologist involved, knowledge of the anatomy and specific pathology of the groin is essential. This paper deals with the imaging characteristics of the various diseases in the inguinofemoral triangle. Furthermore, this article provides an overview of the role of the various imaging modalities in the evaluation of disease in the groin and upper thigh. A sound working knowledge of groin anatomy and pathology is mandatory. The various imaging modalities used should be considered complementary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050487
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  • 3
    Electronic Resource
    Electronic Resource
    Cerebral venous thrombosis: recurrence with fatal course (1999)
    Springer
    Journal of neurology 246 (1999), S. 144-146 
    Details
    ISSN: 1432-1459
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004150050324
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Acquired neuromyotonia: superiority of plasma exchange over high-dose intravenous human immunoglobulin (1999)
    Springer
    Journal of neurology 246 (1999), S. 623-625 
    Details
    ISSN: 1432-1459
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004150050419
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Acute peripheral arterial occlusion: solving a clinical problem (1999)
    Springer
    Emergency radiology 6 (1999), S. 321-326 
    Details
    ISSN: 1438-1435
    Keywords: Key words Thrombolysis – Arteries, stenosis or obstruction – Thrombosis, arterial – Thrombectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This paper gives an overview of the endovascular treatment of acute limb ischemia. Clinical findings and selection criteria will be discussed briefly. The advantages and disadvantages as well as the clinical success rates and complications of pharmacologic and mechanical thrombolysis and aspiration thromboembolectomy will be covered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101400050078
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  • 6
    Electronic Resource
    Electronic Resource
    QTL analysis of potato tuberization (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 307-316 
    Details
    ISSN: 1432-2242
    Keywords: Key words  Solanum tuberosum  ;  Solanum berthaultii  ; QTL  ;  Potato  ;  Tuberization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract   Quantitative trait loci (QTLs) affecting tuberization were detected in reciprocal backcrosses between Solanum tuberosum and S. berthaultii. Linkage analyses were performed between traits and RFLP alleles segregating from both the hybrid and the recurrent parent using a set of framework markers from the potato map. Eleven distinct loci on seven chromosomes were associated with variation in tuberization. Most of the loci had small effects, but a QTL explaining 27% of the variance was found on chromosome 5. More QTLs were detected while following alleles segregating from the recurrent S. tuberosum parent used to make the backcross than were detected by following alleles segregating from the hybrid parent. More than half of the alleles favoring tuberization were at least partly dominant. Tuberization was favored by an allele from S. berthaultii at 3 of the 5 QTLs detected by segregation from the hybrid parent. The additive effects of the QTLs for tuberization explained up to 53% of the phenotypic variance, and inclusion of epistatic effects increased this figure to 60%. The most common form of epistasis was that in which presence of an allele at each of 2 loci favoring tuberization was no more effective than the presence of a favorable allele at 1 of the 2 loci. The QTLs detected for tuberization traits are discussed in relationship to those previously detected for trichome-mediated insect resistance derived from the unadapted wild species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050282
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  • 7
    Electronic Resource
    Electronic Resource
    QTL analysis of potato tuber dormancy (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 317-324 
    Details
    ISSN: 1432-2242
    Keywords: Key words Solanum tuberosum  ;  Solanum berthaultii  ; QTL  ;  Potato  ;  Dormancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The potential loss of chemical sprout inhibitors because of public concern over the use of pesticides underscores the desirability of breeding for long dormancy of potato (Solanum tuberosum L.) tubers. Quantitative trait locus (QTL) analyses were performed in reciprocal backcrosses between S. tuberosum and S. berthaultii toward defining the complexity of dormancy. S. berthaultii is a wild Bolivian species characterized by a short-day requirement for tuberization, long tuber dormancy, and resistance to several insect pests. RFLP alleles segregating from the recurrent parents as well as from the interspecific hybrid were monitored in two segregating progenies. We detected QTLs on nine chromosomes that affected tuber dormancy, either alone or through epistatic interactions. Alleles from the wild parent promoted dormancy, with the largest effect at a QTL on chromosome 2. Long dormancy appeared to be recessive in the backcross to S. berthaultii (BCB). In BCB the additive effects of dormancy QTLs accounted for 48% of the measured phenotypic variance, and adding epistatic effects to the model explained only 4% more. In contrast, additive effects explained only 16% of the variance in the backcross to S. tuberosum (BCT), and an additional 24% was explained by the inclusion of epistatic effects. In BCB variation at all QTLs detected was associated with RFLP alleles segregating from the hybrid parent; in BCT all QTLs except for two found through epistasis were detected through RFLP alleles segregating from the recurrent parent. At least three dormancy QTLs mapped to markers previously found to be associated with tuberization in these crosses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050283
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  • 8
    Electronic Resource
    Electronic Resource
    Phase behavior of polylactides in solvent-nonsolvent mixtures (1996)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 34 (1996), S. 2553-2568 
    Details
    ISSN: 0887-6266
    Keywords: ternary phase diagrams ; polylactides ; Flory-Huggins ; demixing ; membranes ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Isothermal phase diagrams for the semicrystalline poly-L-lactide (PLLA) and the amorphous poly-DL-lactide (PDLLA) in combination with several solvent-nonsolvent combinations (dioxane/water, dioxane/methanol, chloroform/methanol, and NMP/water) have been determined. The locations of the liquid-liquid miscibility gap, the solid-liquid miscibility gap and the vitrification boundary in the isothermal phase diagrams at 25°C were identified. The liquid-liquid miscibility gap for the systems with PLLA was located in the same composition range as the corresponding systems with PDLLA. For the systems containing PLLA solid-liquid demixing was thermodynamically preferred over liquid-liquid demixing. Attempts were made to correlate the experimental findings with predictions on the basis of the Flory-Huggins theory for ternary solutions using interaction parameters derived from independent experiments. Qualitative agreement was found between the theoretical predictions and the experimentally obtained liquid-liquid miscibility gap. No good agreement was found for the solid-liquid miscibility gap. © 1996 John Wiley & Sons, Inc.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    A morphological study of membranes obtained from the systems polylactide-dioxane-methanol, polylactide-dioxane-water and polylactide-N-methyl pyrrolidone-water (1996)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 34 (1996), S. 2569-2578 
    Details
    ISSN: 0887-6266
    Keywords: polylactide ; membrane formation ; morphology ; crystallization ; liquid-liquid demixing ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The influence of liquid-liquid demixing, solid-liquid demixing, and vitrification on the membrane morphologies obtained from several polylactide-solvent-nonsolvent systems has been investigated. The polymers investigated were the semicrystalline poly-L-lactide (PLLA) and the amorphous poly-DL-lactide (PDLLA). The solvent-nonsolvent systems used were dioxane-water, N-methyl pyrrolidone-water and dioxane-methanol. For each of these systems it was attempted to relate the membrane morphology to the ternary phase diagram at 25°C. It was demonstrated that for the amorphous poly-DL-lactide the intersection of a glass transition and a liquid-liquid miscibility gap in the phase diagram was a prerequisite for the formation of stable membrane structures. For the semicrystalline PLLA a wide variety of morphologies could be obtained ranging from cellular to spherulitical structures. For membrane-forming combinations that show delayed demixing, trends expected on the basis of phase diagrams were in reasonable agreement with the observed membrane morphologies. Only for the rapidly precipitating system PLLA-N-methyl pyrrolidone-water were structures due to liquid-liquid demixing obtained when structures due to solid-liquid demixing were expected. Probably, rapid precipitation conditions promote solid-liquid demixing over liquid-liquid demixing, because the activation energy necessary for liquid-liquid demixing is lower than that for crystallization. © 1996 John Wiley & Sons, Inc.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Metastable liquid-liquid and solid-liquid phase boundaries in polymer-solvent-nonsolvent systems (1997)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 35 (1997), S. 763-770 
    Details
    ISSN: 0887-6266
    Keywords: melting transitions ; liquid-liquid demixing ; immersion precipitation ; membranes ; nonequilibrium phenomena ; Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: In general liquid-liquid demixing processes are responsible for the porous morphology of membranes obtained by immersion precipitation. For rapidly crystallizing polymers, solid-liquid demixing processes also generate porous morphologies. In this study, the interference of both phase transitions has been analyzed theoretically using the Flory-Huggins theory for ternary polymer solutions. It is demonstrated that four main thermodynamic and kinetic parameters are important for the structure formation in solution: the thermodynamic driving force for crystallization, the ratio of the molar volumes of the solvent and the nonsolvent, the polymer-solvent interaction parameter, and the rate of crystallization of the polymer compared to the rate of solvent-nonsolvent exchange. An analysis of the relevance of each of these parameters for the membrane morphology is presented. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 763-770, 1997
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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