ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1980-1984  (7)
Collection
Publisher
Year
  • 1
    ISSN: 1432-0983
    Keywords: Protoplast fusion ; Parasexual hybrids ; Electric field pulse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Under the action of a high electric field pulse a pronounced stimulation of yeast protoplast fusion initiated by polyethylene glycol and Ca 2+ ions was found. The fusion rate was enhanced by a factor of 200 for different genetically marked strains of the yeast Saccharomyces cerevisiae as compared with fusion without electric field treatment. Genetic evidence for fusion has been obtained by isolating parasexually produced hybrids resulting from combination of the genomes of both mutants. Our method allows the production of a large number of parasexual hybrids for different purposes.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A method for the determination of the cross-section ratioσ −10/(σ −11+ (σ −10) for hydrogen ions in gases is described; the indices refer to the initial and final charge state. The method is based on the fact that a polarized hydrogen ion beam loses a certain amount of its initial polarization during charge exchange from the negative to positive state in the stripper canal of a tandem accelerator. Combined with the beam-attenuation method the individual electron-stripping cross sections (σ −11, (σ −10 and (σ −01 can be obtained.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 36 (1980), S. 1247-1249 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 0392-6737
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si discute lo scattering elastico di elettroni dagli atomi di cesio e xenon ad energie di collisione al di sotto dei 40 eV. Si studia l'uso del potenzialeX α con α=0.55 e si confrontano i nostri calcoli che usano questo potenziale con sezioni d'urto sperimentali. Si è trovato un ragionvole accordo con le distribuzioni angolari misurate di Gehenn e Reichert, Kleweret al., respettivamente, in contrasto con i calcoli esistenti di Fink e Yates, Walker e McCarthyet al.
    Abstract: Резюме Обсуждается упругое рассеяние электронов на атомах ксенона и цезия при энергиях ниже 40 эВ. Мы анализируем использованиеХ α-потеициала с α=0.55 и сравниваем наши вычисления, использующие этот потенциал, с экспериментальными поперечными сечениями. Получено разумное согласие с угловыми распределениями, измеренными Гехеном и Райхертом и Клевером и др., в иротивоположность существующим вычислениям Финка и Ятса, Уолкера и Маккарти и др.
    Notes: Summary The elastic scattering of electrons from caesium and xenon atoms at collision energies below 40 eV is discussed. We study the use of theX α-potential with α=0.55 and compare our calculations using this potential with experimental cross-sections. Reasonable agreement has been found with the measured angular distributions of Gehenn and Reichert and Kleweret al., respectively, in contrast to the existing calculations of Fink and Yates, Walker and McCarthyet al.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Pharmacy world & science 2 (1980), S. 1493-1505 
    ISSN: 1573-739X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Samenvatting Vitaminen behoren tot de essentiële voedingsstoffen en moeten dus met de voeding worden opgenomen. Hoewel het gemiddelde in Nederland geconsumeerde voedingsmiddelenpakket, zowel kwalitatief als kwantitatief, voldoende Vitaminen lijkt te bevatten, zijn er desondanks aanwijzingen dat voor bepaalde groepen binnen de bevolking de vitaminestatus mogelijk niet optimaal is. Dergelijke, klinisch moeilijk herkenbare, hypovitaminosen kunnen ontstaan als gevolg van een verhoogde vitaminebehoefte of wanneer vitamineresorptie of -metabolisme zijn gestoord. In dit artikel wordt een algemeen overzicht gegeven omtrent behoefte en functie(s) van vitaminen, antivitaminewerkingen, vitaminoïden en provitaminen. Met name wordt ingegaan op die omstandigheden, waarbij een verhoogde vitaminebehoefte bestaat of waaronder vitaminetekorten kunnen ontstaan.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1573-739X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Samenvatting In dit artikel wordt een overzicht gegeven van de functie, het metabolisme en de behoefte aan de verschillende vitamines. Daarnaast wordt ingegaan op de therapeutische toepassing van vitamines. Behalve aan het gebruik van vitamines bij het behandelen van vitaminetekorten, wordt ook aandacht besteed aan de profylaxe van vitaminetekorten, bijvoorbeeld bij een verhoogde vitaminebehoefte. Ook wordt ingegaan op de toepassingen van vitamines bij ziektebeelden die niet direct of herkenbaar zijn gerelateerd aan een vitaminetekort.
    Notes: Abstract Function, metabolism and need of vitamins are discussed, together with their therapeutic application. Vitamins are not only used for treating vitamin deficiency, but also for preventing it.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1573-0530
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...