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  • 1
    Electronic Resource
    Electronic Resource
    Diffusion of manganese in Ni and Ni3Al (1999)
    Springer
    Journal of materials science 18 (1999), S. 1063-1066 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006639303386
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  • 2
    Electronic Resource
    Electronic Resource
    Activation volumes for diffusion of Cu, Fe and Si in Ni (1993)
    Springer
    Journal of materials science 12 (1993), S. 1057-1058 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00420218
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  • 3
    Electronic Resource
    Electronic Resource
    Reaction diffusion and formation of Al3Ni and Al3Ni2 phases in the Al-Ni system (1993)
    Springer
    Journal of materials science 12 (1993), S. 1684-1686 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00418831
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  • 4
    Electronic Resource
    Electronic Resource
    Implementation of a CMIP-based network management system (1995)
    Springer
    Journal of network and systems management 3 (1995), S. 73-83 
    Details
    ISSN: 1573-7705
    Keywords: Network management ; CMIP ; TMN
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper discusses the experiences of the Provisioning And Monitoring (PAM) laboratory at NYNEX Science and Technology in incorporating the Common Management Information Protocol (CMIP) and the Telecommunications Management Network (TMN) concepts into a network management system developed to manage a network of broadband ATM switches supporting a CMIP interface, as well as a legacy switching platform supporting both a proprietary interface and the Simple Network Management Protocol (SNMP) interface. The primary focus of the discussion will be on the implementation issues pertaining to the CMIP interface and the TMN object model; in particular their complexities and the approaches used to manage that complexities while retaining their functionalities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02139834
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  • 5
    Electronic Resource
    Electronic Resource
    The high oleate trait in the cultivated peanut [Arachis hypogaea L.]. II. Molecular basis and genetics of the trait (2000)
    Springer
    Molecular genetics and genomics 263 (2000), S. 806-811 
    Details
    ISSN: 1617-4623
    Keywords: Key wordsArachis hypogaea ; Peanut ; High oleate ; Desaturase ; Oilseed
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A peanut variety with high oleate content has previously been described. When this high oleate variety was used in breeding crosses, the F2 segregation ratio of high oleate to normal oleate progeny was 3:1 or 15:1 depending on the normal oleate varieties used in the crosses. These data suggested that the high oleate trait is controlled by two recessive genes, and some peanut varieties differ from the high oleate variety by mutations in one gene, while others differ by mutations in two genes. The objective of this study was to understand the molecular nature of the high oleate trait and the various segregation patterns. In the previous paper in this issue, we reported that the level of transcripts expressed by one (ahFAD2B) of two homoeologous genes for oleoyl-PC desaturases in cultivated peanut is significantly reduced in high oleate varieties. In this report, we examined gene expression by RT-PCR/restriction digestion in a cross that shows a one-gene segregation pattern for the high oleate trait. Our data showed that the severely reduced level of ahFAD2B transcript correlates absolutely with the high oleate phenotype in this cross, suggesting that the single gene difference is correlated with the ahFAD2B transcript level. When we tested the enzyme activity of the proteins encoded by ahFAD2A and ahFAD2B by expression of the cloned sequences in yeast, only the ahFAD2B gene product showed significant oleoyl-PC desaturase activity. These data, combined with the observation that ahFAD2A shows a change (D150N) in a residue that is absolutely conserved among other desaturases, raised the possibility that the ahFAD2A in these normal and high oleate lines is a mutant allele. In support of this hypothesis, we found that another ahFAD2A allele in a normal oleate peanut line does not have the D150N change. This peanut line displays a two-gene-segregation pattern for the high oleate trait. In conclusion, our results suggest that a mutation in ahFAD2A and a significant reduction in levels of the ahFAD2B transcript together cause the high oleate phenotype in peanut varieties, and that one expressed gene encoding a functional enzyme appears to be sufficient for the normal oleate phenotype.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380000243
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  • 6
    Electronic Resource
    Electronic Resource
    The high oleate trait in the cultivated peanut [Arachis hypogaea L.]. I. Isolation and characterization of two genes encoding microsomal oleoyl-PC desaturases (2000)
    Springer
    Molecular genetics and genomics 263 (2000), S. 796-805 
    Details
    ISSN: 1617-4623
    Keywords: Key wordsArachis hypogaea ; Peanut ; High oleate ; Desaturase ; Oilseed
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Plant oils rich in oleate are considered superior products compared to oils rich in polyunsaturated fatty acids. Peanut (Arachis hypogaea L.) is one of the major oilseed crops, and high oleate mutant varieties with as much as 85% oleate have been reported. We examined the possibility that this mutant phenotype resulted from reduction in the activity or the transcript level of microsomal oleoyl-PC desaturase. Two independently generated high oleate mutants, M2-225 and 8-2122, and their partially isogenic lines with a normal oleate phenotype were used in this study. Two cDNA sequences coding for microsomal oleoyl-PC desaturases, ahFAD2A and ahFAD2B, have been isolated from the developing peanut seed with a normal oleate phenotype. Cultivated peanut is an allotetraploid, and sequence comparisons with the genes from the putative diploid progenitor species suggested that ahFAD2A and ahFAD2B are non-allelic, but homeologous genes originating from two different diploid species. Northern analysis showed that the transcripts of oleoyl-PC desaturases are highly abundant in both normal and high oleate peanut seeds in the second stage of development. Differential digestion of the RT-PCR products revealed a restriction site polymorphism between ahFAD2A and ahFAD2B, and allowed us to examine the level of transcript expressed from each gene. The results indicate that ahFAD2A is expressed in both normal and high oleate peanut seeds, but the steady state level of the ahFAD2B transcript is severely reduced in the high oleate peanut varieties. These data suggested that the reduction in ahFAD2B transcript level in the developing seeds is correlated with the high oleate trait.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380000244
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  • 7
    Electronic Resource
    Electronic Resource
    Scale-up precision synthesis of octa-arm polyisobutylene stars (2000)
    Springer
    Polymer bulletin 44 (2000), S. 493-499 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary This paper concerns the scale-up precision synthesis of octa-arm polyisobutylene (PIB) stars. Specifically, we have optimized to the 100–200 g scale the preparation of star polymers consisting of eight PIB arms radiating from a calix[8]arene core. The synthesis strategy involved the use of a calix[8]arene fitted with eight p-C(CH3)2OCH3 groups as the initiator in conjunction with mixed BCl3/TiCl4 coinitiators in hexanes/methyl chloride solvent systems at − 80 °C. Various possible side-reactions have been identified and means for their suppression/elimination were developed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002890070070
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  • 8
    Electronic Resource
    Electronic Resource
    Mechanism of adhesion improvement in ion-beam mixed Cu/SiO2 (1994)
    Springer
    Journal of materials science 29 (1994), S. 749-753 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A thin copper layer (35 nm) deposited on SiO2 has been subjected to ion-beam mixing with 80 keV Ar+ at room temperature, 550 and 650 K. Interfacial properties of irradiated samples were investigated using Rutherford backscattering spectroscopy, grazing-angle X-ray diffraction, X-ray photo-electron spectroscopy and scratch testing. The adhesion of the copper film was improved by a factor of three at a dose of 1.5 × 1016 Ar+ cm−2 by the ion-beam mixing at room temperature, while the high-temperature ion-beam mixing enhanced the adhesion by a factor of five. Ballistic mixing plays a role in the improvement of adhesion for the room-temperature ion mixing, and the creation of Cu2O phase induced by ion-beam mixing contributes to the enhancement of adhesion at high temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00445989
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  • 9
    Electronic Resource
    Electronic Resource
    Interdiffusion and its size effect in nickel solid solutions of Ni-Co, Ni-Cr and Ni-Ti systems (1992)
    Springer
    Journal of materials science 11 (1992), S. 1333-1337 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00729354
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  • 10
    Electronic Resource
    Electronic Resource
    Prevalence of congenital malformations and genetic diseases in Korea (1999)
    Springer
    Journal of human genetics 44 (1999), S. 30-34 
    Details
    ISSN: 1435-232X
    Keywords: Key words Congenital malformations ; Genetic diseases ; Prevalence ; Infant ; Korea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A nationwide investigation of congenital malformations and genetic diseases in Korea was conducted by analyzing Medical Insurance data for infants aged under 1 year. Medical Insurance data were obtained for 1993 and 1994 and the ICD-9 (International Classification of Diseases, Ninth Revision) code was used to classify the diseases. The coverage rate of medical insurance was approximately 95% of the total population. Anomalies of the cardiovascular, musculoskeletal, and gastrointestinal systems, in descending order of frequency, were more frequent than anomalies in other systems. The average prevalence of cardiovascular anomalies for 1993 and 1994 was 15 per 1000 infants, and ventricular septal defect, with an average prevalence of about 3.50 per 1000 for 1993 and 1994, was the most frequent cardiovascular anomaly in infants. Polydactyly was the most frequent musculoskeletal anomaly, with an average prevalence, for 1993 and 1994, of about 1.20 per 1000 infants. Anencephaly had the highest frequency of nervous system anomalies. Congenital hypertrophic pyloric stenosis was the most common of the gastrointestinal anomalies. The prevalence of the congenital malformations and genetic diseases examined was similar to that reported in other countries. Total medical expenses for the care of patients with each disease entity were also estimated. The highest medical expenses were incurred for ventricular septal defect, congenital coagulation factor VIII disorders, atrial septal defect, tetralogy of Fallot, and spinal anomalies, in descending order of magnitude. This investigation could be helpful in planning social welfare systems, as well as for elucidating the current status of congenital malformations and genetic diseases in Korea, and in other Asian countries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100380050102
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