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
  • 2020-2022  (19)
  • 1975-1979  (12)
  • 1960-1964  (5)
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 186 (1960), S. 633-634 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Larval food was gathered from brood cells containing old larvae (4-6 days of larval life) and young larvae (less than 3 days) of each caste. Care was taken in obtaining the food samples to avoid contamination from materials clinging to the sides of the cells. The samples were kept at 40 C. until a ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 31 (1975), S. 203-205 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Nachweis, dassl-α-Acetyl Methadol (LAAM) nicht nur zentralnervös sedierenden, sondern auch stimulierenden Effekt hat. Im Tierversuch zeigt sich bei elektroenzephalographischen Ableitungen bei visueller Stimulierung und Elektroschock-Behandlung ein 2-phasiger, von der Dosierung abhängiger Effekt des LAAM auf das Zentralnervensystem, was den Erfahrungen mit Methadon Hydrochlorid entspricht.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 362-363 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE lipid content of the food given to the queen larv (royal jelly: RJ) remains fairly constant during the time of the larval growth, while that of the food given to 3-5-day-old larv (modified drone and worker jelly: MDJ and MWJ respectively) decreases considerably in comparison with the food of ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 15 (1978), S. 113-114 
    ISSN: 1432-0630
    Keywords: 78.20 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The electroluminescence spectrum of Zn-doped GaN is independent of uniaxial pressure up to kbars and of temperature in the range 100–300 K.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 24 (1979), S. 547-568 
    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: Analysis of the frequency distributions of breaking load, tenacity, and ratio of cell wall thickness to ribbon width (C/R) for single cotton fibers in this study has indicated that they can all be represented by β-distributions. This suggests that a parallel model of element configurations exists in which there is a uniform distribution of elemental strengths in single cotton fibers before as well as after slack mercerization. In the case of breaking load and tenacity, the distributions are positively skewed and the skewness decreases on slack mercerization, suggesting that quite a few potentially weak places have been either completely removed or at least strengthened. The changes in C/R ratio on slack mercerization for cottons having a range of maturity have been examined and discussed. The dependence of properties such as breaking load, tenacity, and linear density on cell wall to ribbon width ratio (C/R) have also been studied.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 26 (1975), S. 124-125 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Amine als Korrosionsinhibitoren für KupferDie Untersuchung der inhibierenden Wirkung einiger Pyridin- und Anilinderivate auf die Korrosion von Kupfer in Persulfatlösungen ermöglicht die Aufstellung der folgenden Reihenfolge abnehmender Inhibitorwirkung: 2,6-Lutidin - 2-Picolin - Pyridin - m-Anisidin - p-Phenetidin - Anilin.Die Inhibierung kann im allgemeinen auf die Adsorption organischer Moleküle zurückgeführt werden, wobei der Stickstoff als Elektronendonator an der Metalloberfläche fixiert wird. Symmetrische Substitution durch Methylgruppen in Pyridin erhöht die Hemmwirkung. Im Falle der Anilinderivate ist die Wirkung des m-Anisidins am höchsten. Aufgrund von elektrochemischen Versuchen ist die Reaktion kathodisch kontrolliert, wobei die Kathode bei hohen Stromdichten sehr stark polarisiert ist.
    Notes: The study of the inhibiting effect of certain pyridine and aniline derivatives on the corrosion of copper in persulphate solutions enables the compounds to be arranged in the following series of decreasing inhibiting power; 2,6-lutidine - 2-picoline - pyridine - m-anisidine - p-phenetidine - aniline.Inhibition may generally be attributed to the adsorption of organic molecules, nitrogen being an electron donor and becoming attached to the metal surface. Symmetric substitution by methyl groups in the pyridine molecule increases the inhibiting effect. In the case of aniline derivatives m-anisidine is superior to the other compounds studied. On the base of electrochemical experiments it may be concluded that the reaction is under cathodic control, the cathode being extremely polarized at high current densities.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 26 (1975), S. 126-127 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Einfluß der Derivate von Toluidin und Acridin auf die Korrosion von Messing 63/37 in SalpetersäurelösungenUnter den untersuchten Inhibitoren - o-, m- und p-Toluidin, Acridin, Phenazin und Xanthin - haben sich o-Toluidin und Acridin als ausgezeichnete Inhibitoren der Korrosion von Messing in Salpetersäure erwiesen. In der Toluidinreihe ist die Wirkung der Ortho-Verbindung größer als die der Para-Verbindung. Aufgrund der Ergebnisse erhält man die folgende Reihe der Inhibitorwirksamkeit: o-Toluidin - p-Toluidin - m-Toluidin - Acridin - Xanthin - Phenazin.Die Wirkung beruht wahrscheinlich auf der Beseitigung der Salpetrigen Säure (durch Diazotierung) und auf der Adsorption von Oniumionen an der Metalloberfläche, NH2-Gruppen bewirken eine Aktivierung aller Positionen in ringförmigem Molekül.
    Notes: Among the inhibitor studied - o-, m-and p-toluidines, acridine, phenazine and xanthine - o-toluidine and acridine have turned out to be excellent inhibitors of the corrosion of brass in nitric acid. As to the toluidine series the inhibiting power of the ortho isomer is superior to that of the para isomer. On the base of the results obtained the following order of efficiency may be established - o-toluidine - p-toluidine - m-toluidine - acridine - xanthine - phenazine.The efficiency is probably due to the elimination of nitrous acid (by diazotization) and to adsorption of onium type ions at a metal surface. NH2 groups give rise to an activation of all the positions in the cyclic molecule.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 321 (1979), S. 336-340 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Untersuchungen an Cobalt(II)-Komplexen einfacher Monoxime
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2020-09-01
    Print ISSN: 0013-4686
    Electronic ISSN: 1873-3859
    Topics: Chemistry and Pharmacology , Physics
    Published by Elsevier
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1975-09-15
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    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...