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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 271-289 
    ISSN: 0392-6737
    Keywords: Theory of quantized fields ; Field theory ; Quantum statistical mechanics ; Nonequilibrium thermodynamics ; irreversible processes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si illustrano brevemente i fondamenti di un approccio di teoria dei campi del non equilibrio nel dominio dei tempi reali, basato su una generalizzazione del formalismo della thermo field dynamics. In particolare, vengono messi in evidenza i possibili vantaggi della sua applicazione allo studio di modelli relativistici, come quello φ4 del campo di Higgs. Si sottolineano poi le differenze con altri approcci che fanno uso della tecnica degli integrali di cammino à la Feynman.
    Abstract: Резюме Анализируются основные составные части теоретического подхода с использованием вещестенного времени к неравномерной квантовой теории поля, который основан на обобщении термо-полевой динамики. В частности, отмечаются возможные преимущества применения этого подхода к релятивистским моделям, как например, к φ4-для поля Хиггса. Также обсуждаются различия между предложенным подходом и другими подходами, использующими Фейнмановский метод интегрирования по траекториям.
    Notes: Summary The basic ingredients of a real-time nonequilibrium quantumfield theoretical approach, based on a generalization of thermofield dynamics, are briefly reviewed. In particular, the possible advantages of its application to relativistic models, as the φ4-model for the Higgs field are pointed out. Also the differences between the above approach and others using the Feynman's path integral method are underlined.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 58 (1989), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract An open-reading frame (ORF111) upstream of the glutamine synthetase I structural gene (glnA) in Rhizobium leguminosarum biovar viceae encodes a protein which is highly homologous to the PII protein (encoded by glnB) of enteric bacteria. ORF111 was cloned in a number of different plasmid vectors and shown to complement a K. pneumoniae glnB mutant. We propose that ORF111 encodes the PII protein of R. leguminosarum and that it should be designated glnB.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Physica A: Statistical Mechanics and its Applications 148 (1988), S. 1-26 
    ISSN: 0378-4371
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 333 (1993), S. 342-354 
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Advances in contraception 9 (1993), S. 335-340 
    ISSN: 1573-7195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Resumé Introduction Nous avons étudié l'efficacité du contrôle par le test de la cristallisation de la salive en forme de fougère comme diagnostic aidant au planning familial naturel. Nous avons utilisé un microscope de poche (PG/53). Matières et méthodes L'application de méthodes de planning familial naturel a été étudiée chez 32 femmes qui utilisent la nouvelle technique PG/53 pour déceler la période de fécondité. Les femmes ont observé leurs cycles menstruels et d'autres marqueurs de fécondité, tels que la température basale et l'aspect du mucus cervical. Résultats Chez 28 des 32 femmes ayant participé à cette étude, le test de la salive est apparu concluant au microscope, avec cristallisation positive en feuille de fougère à la même période que les autres marqueurs de fécondité. Pour 4 cycles, la cristallisation n'a pas pu être interprétée car il n'y avait aucune correspondance avec la période du cycle. La salive commençait à se cristalliser 1 à 2 jours avant l'apparition du mucus cervical pendant en moyenne 6,2 jours. Cette cristallisation se produisait en moyenne 7,2 jours avant le premier jour de l'élévation de la température corporelle. Conclusions Il existe une corrélation directe entre la cristallisation salivaire en forme de fougère et la période de fécondité. En combinaison avec d'autres méthodes thermo-symptomatiques de détection de l'ovulation, ce test peut servir de nouveau paramètre pour aider les femmes à déceler la période de fécondité. Il faut dès lors poursuivre les recherches en vue d'améliorer l'efficacité du contrôle de la cristallisation salivaire.
    Abstract: Resumen Estudiamos la eficacia del uso de la formación de helecho salival como ayuda de prueba diagnóstica para la planificación familiar natural. Utilizamos PG/53, un microscopio de bolsillo. El uso de métodos de planificación familiar natural se estudió en 32 mujeres que utilizaron la nueva tecnología PG/53 para detectar su período de fecundidad. Con este método las mujeres observaron sus ciclos menstruales y otros indicadores de fecundidad, tales como la temperatura corporal basal y la aparición de moco cervical. De las 32 mujeres que participaron en este estudio, 28 tuvieron una buena prueba salival con formación positiva de helecho al microscopio en el mismo período que otros indicadores de fecundidad. En 4 ciclos la formación de helecho no fue interpretable ya que no hubo correspondencia con la fase del ciclo. La formación de helecho comenzó 1–2 días antes de la aparición de moco cervical y duró en promedio 6,2 días. La formación de helecho ocurrió, en promedio, 7,2 días antes del primer día de cambio de temperatura. Hay una correlación directa entre la formación de helecho salival y el período de fecundidad. La formación de helecho salival puede utilizarse como un nuevo parámetro para ayudar a las mujeres a detectar el período de fecundidad en combinación con otros métodos sintotérmicos de detección de la ovulación. Actualmente se necesitan más investigaciones a fin de mejorar la eficacia del uso de la formación de helecho salival.
    Notes: Abstract Introduction We have studied the use-effectiveness of salivary ferning as a diagnostic testing aid to natural family planning. We used PG/53, a pocket microscope. Materials and methods Use of natural family planning methods was studied in 32 women who used the new technology PG/53 to detect the fertile period. By this means the women observed their menstrual cycles and other markers of fertility, such as basal body temperature and appearance of cervical mucus. Results Of the 32 women participating in this research, 28 women had a good salivary test with positive ferning by the microscope in the same period as other markers of fertility. In 4 cycles the ferning was uninterpretable as there was no correspondence with the cycle phase. Ferning began 1–2 days before cervical mucus appearance, and lasted a mean of 6.2 days. Ferning occurred, on average, 7.2 days before the first day of temperature shift. Conclusions There is a direct correlation between salivary ferning and fertile period. Salivary ferning may be used as a new parameter to aid women to detect the fertile period in combination with other symptothermal methods of ovulation detection. We now need further research in order to improve the use-effectiveness of salivary ferning.
    Type of Medium: Electronic Resource
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