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  • 1
    Electronic Resource
    Electronic Resource
    The Number of Reflections for Neutron Transmission through Cylindrical Channels (1997)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 30 (1997), S. 324-326 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The fraction of trajectories that have a given number of reflections during the passage of a neutron beam through a long cylindrical channel is determined when the angular divergence of the incident beam is less than the critical angle of the inner surface of the channel. This is useful for estimating the reflectivity from neutron-transmission measurements. The results are shown on a universal curve.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S002188989601374X
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  • 2
    Electronic Resource
    Electronic Resource
    Mortality after Esophagectomy: Risk Factor Analysis (1997)
    Springer
    World journal of surgery 21 (1997), S. 599-604 
    Details
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Esophageal resection is associated with a high incidence of operative mortality, suggesting the need for predictors of operative risk. A retrospective analysis was performed for esophagectomy patients using univariate and multivariate analyses; relative risks (RR) were calculated. Of the 269 patients, 35 (13%) died. The optimal model for the preoperative prediction of risk of mortality was defined by age ( p = 0.001; RR = 2.6) and performance status ( p = 0.04; RR = 1.9). Delimiting the data pool using a calculated risk of 0.2 accurately identified outcomes in 79% of patients and predicted 41% of deaths. The optimal model for the overall prediction of risk of mortality was defined by age ( p = 0.001; RR = 3.9), intraoperative blood loss ( p 〈 0.001; RR = 1.7), pulmonary complications ( p = 0.002; RR = 6.6), and the need for inotropic support ( p = 0.003; RR = 10.2). The individual risk of mortality after esophagectomy can be predicted preoperatively with a model based on patient age and performance status. The findings underscore the importance of preoperative evaluation of cardiopulmonary function, meticulous operative technique, and aggressive respiratory care in the management of the esophagectomy patient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002689900279
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  • 3
    Electronic Resource
    Electronic Resource
    Whittaker models and unipotent representations of $p$ -adic groups (1997)
    Springer
    Mathematische Annalen 308 (1997), S. 587-592 
    Details
    ISSN: 1432-1807
    Keywords: Mathematics Subject Classification (1991): 22E50, 22E35, 20G25
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002080050091
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  • 4
    Electronic Resource
    Electronic Resource
    Sequence Diversity and Molecular Evolution of the Merozoite Surface Antigen 2 of Plasmodium falciparum (1997)
    Springer
    Journal of molecular evolution 45 (1997), S. 154 -160 
    Details
    ISSN: 1432-1432
    Keywords: Kew words: Merozoite surface antigen 2 — Nucleotide sequence comparisons — Molecular evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract. Eleven new alleles of the Plasmodium falciparum merozoite surface antigen 2 (MSA2) from Papua New Guinea were analyzed by direct sequencing of polymerase chain reaction (PCR) products. We have used the sequence information to trace the molecular evolution of MSA2. The repeats of ten alleles belonging to the 3D7 allelic family differed considerably in size, nucleotide sequence, and repeat copy number. In the repeat region of these new alleles, codon usage was extremely biased with an exclusive use of NNT codons. Another new allele sequenced belonged to the FC27 family and confirmed the family-specific conserved structure of 96 and 36 bp repeats. In order to assess sequence microheterogeneity within samples defined as the same genotype by restriction fragment length polymorphism (RFLP), we have analyzed single-strand conformation polymorphism (SSCP) of different samples of the most frequent allele (D10 of the FC27 family) in the study population. No sequence heterogeneity could be detected within the repeat region. Based on analysis of the repeat regions in both allelic families, we discuss the hypothesis of a different evolutionary strategy being represented by each of the allelic families.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00006215
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  • 5
    Electronic Resource
    Electronic Resource
    A numerical study of barotropic vortex motion near a large-scale mountain range with application to the motion of tropical cyclones approaching the Sierra Madre (1997)
    Springer
    Meteorology and atmospheric physics 64 (1997), S. 1-19 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Summary The motion of an idealized vortex near a large-scale mountain range is examined by numerically integrating the single-layer shallow-water equations on an equatorial beta plane. Modification of the asymmetric circulation by divergent vorticity generation as the air is forced across the ridge greatly affects the motion of the vortex. Attention is focused on the role of the vortex structure, the mountainrange width and orientation, and the stratification of the model atmosphere in influencing the motion of the vortex. A scale analysis is used to explain the sensitivity of the vortex track to changes in the model's external parameters. The sensitivity of the model vortex track to the slope and orientation of the mountain range is used to help explain some features of the observed tracks of hurricanes that make landfall on the east coast of Mexico.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01044127
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  • 6
    Electronic Resource
    Electronic Resource
    Large-scale production of chlamydospores of Gliocladium virens strain GL-21 in submerged culture (1997)
    Springer
    Journal of industrial microbiology and biotechnology 19 (1997), S. 163-168 
    Details
    ISSN: 1476-5535
    Keywords: Keywords: biological control; antagonist; kinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: SoilGard™ is a commercial microbial fungicide containing chlamydospores of Gliocladium virens strain GL-21. The formulation is registrated with the US Environmental Protection Agency (EPA) by Thermo Trilogy Corporation, Columbia, Maryland. The biocontrol agent was developed in cooperation with the Biocontrol of Plant Diseases Laboratory (BPDL), US Department of Agriculture (USDA), and is targeted for controlling damping-off diseases caused by Rhizoctonia solani and Pythium ultimum in vegetable and ornamental greenhouses. Formulation requires production of chlamydospore biomass in liquid fermentation which was carried out in 20-L, 1500-L and 4000-L submerged liquid fermentors. Key economic process parameters, fermentation kinetics and the reproducibility of the fermentation at this scale were evaluated and analyzed. Starter culture quality and maturity of chlamydospores were identified as key issues for obtaining successful fermentations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/sj.jim.2900430
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