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  • 2000-2004  (4)
  • 1990-1994  (7)
  • 1960-1964  (6)
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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Integral equations and operator theory 18 (1994), S. 109-117 
    ISSN: 1420-8989
    Keywords: 45C05 ; 47A75 ; 47G10 ; 45P05
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Let {λn} n=0 ℞ be the eigenvalue sequence of a symmetric Hilbert-Schmidt operator onL 2(I). WhenI is an open interval, a necessary condition for {λn} n=0 ℞ to be in the sequence space Γ is obtained. WhenI is a closed bounded interval, sufficient conditions for {λn} n=0 ℞ to be in the sequence space Г− are obtained.
    Type of Medium: Electronic Resource
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  • 12
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary.  In an epidemiological study of symptomatic human rotaviruses in Mysore, India during 1993 and 1994, isolates MP409 and MP480 were isolated from two children suffering from severe, acute dehydrating diarrhea. Both isolates exhibited ‘long’ RNA pattern and subgroup I specificity suggesting the likelihood of their animal origin. Both isolates did not react with monoclonal antibodies (MAbs) specific for serotypes G1 to G6 as well as G10. To determine the genetic origin of these isolates, complete nucleotide sequences of genes encoding the outer capsid proteins VP4 and VP7, nonstructural proteins NSP1 and NSP3 and viral enterotoxin protein NSP4 from MP409 and partial sequences of genes from MP480 were determined. Comparison of the 5′ and 3′ terminal sequences of 250 nucleotides revealed complete identity of the gene sequences in both strains suggesting that MP409 and MP480 are two different isolates of a single strain. Comparison of the nucleotide and deduced amino acid sequences of VP4, VP7, NSP1 and NSP3 of MP409 with published sequences of strains belonging to different serotypes revealed that both outer capsid proteins VP4 and VP7 and NSP1 are highly related to the respective proteins from the P6[1], G8 type bovine rotavirus A5 isolated from a calf with diarrhoea in Thailand and that the NSP3 is highly homologous to that of bovine rotaviruses. The NSP4 protein showed greatest sequence identity with NSP4s belonging to the KUN genetic group to which NSP4s from human G2 type strains and bovine rotaviruses belong. MP409 and MP480 likely signify interspecies transmission of P6[1], G8 type strains from cattle to humans and represent the first P6[1] type rotaviruses isolated in humans. These and our previous studies on the asymptomatic neonatal strain I321 are of evolutionary and epidemiological significance in the context of close association of majority of the Indian population with cattle.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 19 (2000), S. 1057-1059 
    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
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 13 (1994), S. 708-710 
    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
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 13 (1994), S. 389-392 
    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
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Advances in contraception 8 (1992), S. 129-140 
    ISSN: 1573-7195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Resumé Depuis 1982 en Malaisie, une nouvelle orientation a été donnée à la politique nationale concernant la cruissance démographique. L'étude présentée examine comment ont évolué, sur une période de 5 ans et avec un intervalle de 10 ans, les pratiques contraceptives adoptées par les trois groupes ethniques du pays, à savoir les Malais, les Chinois et les Indiens. Il s'agit en fait d'une étude rétrospective fondée sur les visites à la même clinique de planning familial en milieu urbain. Le changement le plus frappant se rapporte à la composition raciale des groupes utilisant les contraceptifs au cours des deux périodes en question. En effet, les Chinois, qui constituaient le groupe prédominant de 1975 à 1979, ont été remplacés par le groupe malais durant la période de 1985 à 1989. Quant au nombre des Indiens faisant appel à la contraception, il est resté le même. Les résultats font également ressortir une tendance significative au changement de la part de celles qui soit prenaient la pilule soit choisissaient la stérilisation. Aucune modification significative n'est apparue en ce qui concerne l'utilisation des DIU, des préservatifs et des préparations injectables. Cette étude démontre comment les politiques nationales, le niveau d'instruction et les migrations du milieu rural au milieu urbain peuvent considérablement influer sur les pratiques contraceptives.
    Abstract: Resumen Desde 1982 se han producido cambios en la política nacional de Malaysia relativa al crecimiento demográfico. Este estudio examina los cambios en las prácticas anticonceptivas de los tres grupos étnicos del país — malayos, chinos e indios — durante un período de 5 años y con un intervalo de 10 años. Se trata en realidad de un estudio retrospectivo basado en las visitas a la misma clínica de planificación familiar en un ambiente urbano. El cambio más notable observado se relaciona con la composición racial de los grupos que utilizaban anticonceptivos en el curso de los dos períodos en cuestión. Los chinos, que constituían el grupo predominante de 1975 a 1979, fueron reemplazados por los malayos durante el período comprendido entre 1985 y 1989. No se observó cambio alguno en el número de indios que recurrían a anticonceptivos. Los resultados revelan asimismo una tendencia significativa al cambio de parte de quienes tomaban la píldora y de quienes habían elegido la esterilización. No se observó ninguna modificación significativa respecto de la utilización de DIU, preservativos y preparados inyectables. Este estudio demuestra cómo las políticas nacionales, los niveles de educación y las migraciones del ámbito rural al ámbito urbano pueden influir considerablemente sobre las prácticas anticonceptivas.
    Notes: Abstract There have been changes in the national policy regarding population growth in Malaysia from 1982. This report studies the changes in contraceptive practice among the three racial groups in this country, i.e. Malays, Chinese and Indians, over a 5-year period with an interval of 10 years. This is a retrospective study based on the attendance at the same family planning clinic in an urban setting. The striking change noted is the change in the racial composition of contraceptive usage in the two study periods with a shift from the Chinese being predominant in 1975–1979 to Malays in 1985–1989. There was no change among the numbers of Indians using contraception. The results also reveal a significant trend of change for users of the pill and those undergoing sterilization. There were no significant changes in IUD, condom and injectable usage. The study demonstrates how national policies, level of education and rural urban migration can significantly alter contraceptive practice.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 49 (1993), S. 1131-1144 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The structural properties of epoxy can be retained and thermal stability improved by blending epoxy with bismaleimide (BMI) and curing them simultaneously. Depending on the curing agent, the overall viscoelastic properties of the cured material can be varied. In the present work, diaminodiphenylmethane and diaminodiphenyl sulfone have been used as curing agents to prepare blends of epoxy and BMI. The blends were characterized by DSC, TG, DMA, and SEM. Results indicate that an excellent interpenetrating network forms in both the cases and that the DDM-cured system gives better thermal stability than that of the DDS-cured system. © 1993 John Wiley & Sons, Inc.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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