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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 100 (1978), S. 2894-2896 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 50 (1978), S. 686-687 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— A total of 25 human brain tumors and 4 specimens of human brain were rapidly frozen at the time of operation and analyzed for ATP, ADP, AMP, UTP, total nucleoside triphosphates, P-creatine, creatine, inorganic P, creatine kinase, lipid and glycogen. Analyses were made on submicrogram samples dissected from frozen dried sections in order to obtain material as free as possible from admixture with brain, necrotic tissue, blood, etc. A method was developed to estimate the original water content of the frozen dried samples. The brain specimens contained five times as much glycogen as small mammal brains, otherwise the values were similar. The tumors were in fair to excellent energy status. Within the areas chosen for assay, most of ATP and total adenylate were substantially higher than in brain in the case of 5 out of 15 gliomas, 3 of 5 meningiomas, and 1 of 4 schwannomas. UTP was almost invariably higher and other nucleotide triphosphates (besides ATP and UTP) lower than in brain. Glycogen was extremely variable, ranging among the gliomas from 0.05% to 6% of dry wt (4 times the level in the human brains). Creatine plus P-creatine, compared to cerebral cortex levels, ranged from 15 to 85% in gliomas, was about 25% in meningiomas and the only medulloblastoma, and varied between 6 and 8% in the schwannomas. P-Creatine varied more or less in keeping with the energy status. Creatine kinase was exceedingly variable. It was almost zero in the schwannomas, the medulloblastomas, 3 of 5 meningiomas, and 2 of 15 gliomas, whereas in some of the gliomas the activity approached that found in brain.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of food science & technology 12 (1977), S. 0 
    ISSN: 1365-2621
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: A method has been developed, based on headspace gas chromatography, for the determination of freezant residues in prawns frozen by contact with liquid dichlorodifluoromethane (DCDFM). Detector response was linear up to 300 μ DCDFM injected. This level is two orders of magnitude higher than the maximum permitted limit in the U.K. for residual DCDFM. Recoveries of DCDFM from ‘spiked’ samples were in the range 77 to 105%. A storage trial was set up to measure the fall of residual DCDFM levels with time during storage under deep freeze conditions.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 24 (1975), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Tipula oleracea L. was cultured in the laboratory at 20°C, producing five to six generations per year and, for example, 20,000 surplus insects for experimental purposes. The eggs were kid in agar and the larvae were reared in sand and Fed dried, powdered grass. Small insects such as sciarids contaminated the culture but were controlled by mechanical separation and heat treatment of the sand. This method has been used to rear T. oleracea through 35 generations.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @Cambridge law journal 38 (1979), S. 270-273 
    ISSN: 0008-1973
    Source: Cambridge Journals Digital Archives
    Topics: Law
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial and engineering chemistry 16 (1977), S. 495-495 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0738
    Keywords: Chenodeoxycholic acid ; Chimpanzee ; Conjugation ; Lithocholic acid ; Sulfation ; Toxicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Um im Schimpansen die hepatische Biotransformation der primären Gallensäure Chenodeoxycholsäure und deren wichtigstem bakteriellen Metaboliten, Lithocholsäure zu charakterisieren, wurde ein Gemisch aus Spurenmengen von14C-Lithocholsäure und3H-Chenodeoxycholsäure intravenös in zwei Tiere mit Gallenfistel injiziert. Die chemische Form der Radioaktivität, die in der Galle erschien, wurde dünnschichtchromatographisch ermittelt. Etwa 80% der Chenodeoxycholsäure und 70% der Lithocholsäure wurden innerhalb von 90 min ausgeschieden. Die Chenodeoxycholsäure war vollständig konjugiert und erschien vorwiegend als Chenyltaurin (52%) und Chenylglycin (37%). 11% erschienen in einer Form, die bisher nicht identifiziert wurde. Lithocholsäure wurde vollständig als Taurin- und Glycinkonjugat in die Galle eliminiert; der größte Teil (63%) war zusätzlich sulfatiert. Die Sulfatierung nahm stetig mit der Zeit zu und Lithocholylglycine wurde stärker sulfatiert als Lithocholyltaurin. Wir schließen aus diesen Befunden, daß der Schimpanse mit dem Menschen vergleichbar ist, indem er Lithocholsäure effektiv sulfatiert. Dadurch unterscheidet sich der Schimpanse vom Rhesusaffe und Baboon, die die Lithocholsäure nur in geringem Maße sulfatieren. Jedoch unterscheidet sich der Schimpanse auch vom Menschen und ähnelt dem Rhesusaffen und dem Baboon, indem er Gallensäure vorwiegend mit Taurin konjugiert. Die Ergebnisse lassen den Schluß zu, daß die Hepatotoxizität, die im Rhesusaffe und Baboon durch Chenodeoxycholat hervorgerufen wird, und auf eine geringe Sulfatierung der Lithocholsäure zurückgeführt wird, beim Schimpansen nicht bestehen sollte.
    Notes: Abstract To characterize the hepatic biotransformation in the chimpanzee of the primary bile acid chenodeoxycholic acid (chenic) and its major bacterial metabolite lithocholic acid (lithocholic) a mixture of tracer amounts of14C-lithocholic and3H-chenic was injected intravenously into two animals with a bile fistula; the chemical form of radioactivity appearing in bile was inferred using thin layer chromatography. About 80% of chenic, and 70% of lithocholic was recovered in 90 min. Chenic was completely conjugated in bile, appearing predominantly as chenyltaurine (52%) and chenylglycine (37%). An unidentified conjugate (about 11%) was also found. Lithocholic was excreted completely as taurine and glycine conjugates, but the majority (63%) of conjugates was sulfated. Sulfation increased progressively with time, and lithocholylglycine was sulfated more than lithocholyltaurine. We conclude that the chimpanzee is similar to man in that the secondary bile acid lithocholic is efficiently sulfated. The chimpanzee thus differs from the baboon and rhesus monkey which sulfate lithocholic poorly. However, the chimpanzee differs from man and is similar to the baboon and rhesus monkey in showing preferential conjugation of bile acids with taurine. The results imply that hepatotoxicity caused by chenic, which is well documented in the rhesus monkey and baboon and has been related to defective lithocholic sulfation, should not occur in the chimpanzee.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    BioControl 23 (1978), S. 169-174 
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Des essais en parcelles avec le virus irisant deTipula (TIV) ont été effectués pour déterminer si l'on peut introduire l'infection dans des populations deTipula spp. en prairie. Le virus a été utilisé sous forme de larves vivantes ou mortes deTipula oleracea L., d'appât de son, et en suspensions aqueuses. L'expérimentation a été réalisée dans un emplacement pendant 3 ans successifs et dans 5 sites complémentaires pendant la 3e année. L'échantillonnage des populations de larves de tipules a eu lieu tous les 2 mois. La majorité des larves récoltées n'etaient pas irisantes et elles ne le sont pas devenues après un élevage à 20°C pendant 30 jours. Dans les parcelles où l'on a trouvé des larves irisantes, celles-ci représentaient 1 à 17% de la population de tipules. L'identité du virus dans ces insectes a été confirmée par agglutination au latex. Les résultats suggèrent que tous les traitements ont introduit l'infection virale dans les populations de tipules mais avec une faible efficacité.
    Notes: Abstract Field trials withTipula iridescent virus (TIV) were carried out to determine whether the infection can be introduced into populations ofTipula spp. in grassland. The virus was introduced into plots in live and deadTipula oleracea L. larvae, in a bran bait and in sprayed aqueous suspensions. Trials were conducted at 1 site in 3 successive years and at 5 further sites in the 3rd year. Tipulid larval populations in the plots were sampled at intervals of approximately 2 months. The majority of sampled larvae were not iridescent and did not become iridescent when they were incubated at 20°C for 30 days. In plots where iridescent larvae were found they generally comprised between 1 and 17% of the tipulid population. The identity of the virus infecting these insects was confirmed by the latex agglutination test. The results suggest that all the treatments introduced the virus infection into one or more of the tipulid populations; they all did so, however, with low efficiencies.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 33 (1977), S. 1396-1397 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Vasectomy was found to have no influence on the sexual activity of male mice. Testis and seminal vesicle weights were similary not influenced by this operation although a significant increase in epididymus weight was observed.
    Type of Medium: Electronic Resource
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