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
  • 1960-1964  (19)
  • 1955-1959  (15)
  • 1950-1954  (14)
  • 1925-1929  (2)
Collection
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 68 (1964), S. 3078-3080 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 33 (1929), S. 459-466 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    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 168 (1951), S. 522-523 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The velocity has been determined for four frequencies, as outlined in the accompanying table. ULTRASONIC VELOCITIES OF POTASSIUM CHLORIDE SOLUTIONS AT 24 C. Percentage of 2-5Me./s. 2-25Mc./s. 1-25 Mc./s. 0-625Mc./s. potass. , ' chloride Oj I Vi Oi Vi 6i Vi Oi Vi ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 157-157 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Precipitin sera have been prepared in the Malaria Institute of India during the past thirteen years as a routine for the determination of the sources of mosquito blood meals. Since 1948, human plasma has been successfully used as an antigen. Twenty-five rabbits and twenty-nine fowls were immunized ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 533-533 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the course of studies in these laboratories, the garden squirrel (S. palmarum) has been found to be susceptible to blood-induced infections of P. berghei. In these rodents, unlike mice and some rats, the infection was mild and became chronic. Periods of latency were followed by mild parasitic ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 1292-1292 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Colorimetric readings in presence of: Expo- Methyl ethyl n- n- Diace- sure alco- alco- propyl butyl tone Ace- (min.) Blank hoi hoi alco- alco- alco- tone Dioxan Ether hoi hoi hoi 0 338 338 338 337 338 337 338 338 337 5 126 313 330 335 337 330 335 337 334 10 65 310 327 333 335 328 ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 193 (1962), S. 268-268 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The spectrum extends from 2700 A. to 3100 A,, and consists of about 60 bands degraded towards the red. A ptrong continuum covering the whole region mars the sharpness of the bands which have been measured on a Hilger comparator using IOWT-power objective. The mean of three measurements are taken ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 179 (1957), S. 975-975 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experimental selection of the strain was made in albino mice, the serial passages being exposed to progressively increasing doses of 'Resochin' solution administered intraperitoneally. The experiment involved 33 mouse passages during a period of about seven months. When the dose of drug ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 181 (1962), S. 46-49 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Ultraschallbestrahlung (1 MHz, 225 Watt/cm2) kann erfolgreich zur Präparation stabiler kolloidaler Kobaltohydroxydsole mit positiver Ladung angewandt werden. Bei einer solchen Bestrahlung wird das Sol stabiler. Die spez. Leitfähigkeit und die Wasserstoffionen-Konzentrationen des Sols steigt kontinuierlich mit der Zeit der Ultraschallbestrahlung. Die Viskosität des Sols nimmt entsprechend ab. Die optische Dichte und die Koagulationswerte mit Elektrolyten steigen ebenfalls mit der Bestrahlung. Die Stabilität des Sols ist wahrscheinlich der Erhöhung der positiven Ladung der Kolloidpartikel zuzuschreiben, da die Wasserstoffionen-Konzentration des Sols mit Bestrahlung steigt. Der Wechsel in der Farbe ist der Umformung von Kobalto- zu Kobaltihydroxyd durch die Ultraschallwellen zuzuschreiben.
    Notes: Summary Ultrasonic agency (1 Mc/s 225 watts per sq. cm. output) can be successfully utilised for the preparation of rather a stable colloidal cobaltous hydroxide sol bearing a positive charge. On exposing this sol to ultrasonic waves, it becomes more stable. The specific conductivity and hydrogen ion concentration of the sol continuously increases with the time of exposure to ultrasonic waves. The viscosity of the sol decreases with the time of exposure to ultrasonic waves. The optical density and coagulation values with electrolytes also increase on exposing the sol to ultrasonic waves. The stability of the sol is probably due to the increase in positive charge on the colloidal particles as the hydrogen ion concentration of the sol has increased on exposure. The change in colour is due to transformation of cobaltous to cobaltic hydroxide by ultrasonic waves.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 175 (1961), S. 50-53 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Ultraschallbestrahlung von einemMullard-Generator mit Bariumtitanat-Kristallen als Schallgeber (Frequenz 1 MHz; 225 W/cm2 als Strahlungsleistung) wurde angewandt, um die Entfärbung von wäßrigen Lösungen aus Brillantgrün zu untersuchen. Die erhaltenen Adsorptionskurven aus spektrometrischen Daten zeigen das Verschwinden des Farbstoffs mit wechselnder Zeit der Bestrahlung. Die Reaktion ist unimolekular, und die mittleren Geschwindigkeitskonstanten sind 0,739, 0,452 und 0,365 für die Konzentrationen 0,0064, 0,0096 und 0,0128 g/l. Die Anwesenheit geringer Beträge von Äthylalkohol unterbindet die Entfärbung. Gravitation und Oxydation, verursacht durch die Gegenwart von Spuren aktivierten Sauerstoffs aus der gelösten Luft, scheinen die Ursache für die Entfärbung zu sein.
    Notes: Summary Ultrasonic radiations from aMullard generator with barium titanate crystal as transducer having a frequency 1 MC/sec. and power output 225 W/sq. cm. have been used to study the decolourisation of aqueous solutions of brilliant green dye. Absorption curves obtained from spectrophotometric data demonstrate the fading of the colour of the dyestuff with the time of exposure. The reaction has been found to he unimolecular and average velocity constants are 0.739, 0.452 and 0.365 for concentrations 0.0064, 0.0096 and 0.0128 g./l. respectively. The presence of small amount of ethyl alcohol inhibits the fading. Cavitation and oxidation due to the presence of some activated oxygen from the dissolved air seem to be the cause of fading.
    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...