Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Oldest record of a bisexual plant (1997)
    [s.l.] : Nature Publishing Group
    Nature 385 (1997), S. 401-401 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have discovered coalescent male and female gametangia in fossils of the earliest charophytes (one of the algal groups most closely related to higher plants) from the Devonian period. This provides the oldest evidence of bisexuality in plants. In contrast to the well-documented complex evolution ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/385401a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Effects of cold, short day and melatonin on thermogenesis, body weight and reproductive organs in Alaskan red-backed voles (1986)
    Springer
    Journal of comparative physiology 156 (1986), S. 741-746 
    Details
    ISSN: 1432-136X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary This study examined whether cold, short day or melatonin causes reproductive regression and stimulates nonshivering thermogenesis in a subarctic rodentClethrionomys rutilus. Red-backed voles born and raised at 23°C and 22 h light per day (LD 22: 2) at Fairbanks, Alaska (65°N) were exposed in one of six groups to: 1) long day (LD 22:2), 23°C, injected daily with melatonin or saline 2 h before lights out, 2) long day, 3°C, injected daily with melatonin or saline, 3) short day (LD 8:16), 23°C or 3°C. Voles were tested for nonshivering thermogenesis (NST) prior to and after 8 wk exposure. Body weight, testes weight and female reproductive tract weight were assessed after 8 wk in long day and 12 wk in short day. NST was not altered by short day or melatonin but cold (3°C) caused an increase in NST which was similar in long day and short day. Body weight of males and females was not affected by short day but was decreased by melatonin. Short day did not alter mean testes weight (about 20% voles regressed) but reduced mean female reproductive tract weight (more than 40% voles regressed). Melatonin reduced testes weight and female reproductive tract weight (more than 50% of voles of both sexes regressed). The results suggest that in northern red-backed voles: 1) the pineal does not mediate seasonal changes in thermogenic capacity, 2) the pineal may mediate reduction of body weight and regression of reproductive organs but, in addition to daylength, other cues or factors may be important, 3) populations may exhibit variability in sensitivity of reproduction to photoperiod which could allow for opportunistic breeding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00692753
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Interaction of AD2+D2 protein and simian virus 40 large T antigen with the large tumor antigen binding site I (1984)
    s.l. : American Chemical Society
    Biochemistry 23 (1984), S. 5938-5944 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00320a008
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Soft chemical synthesis of new compounds with the hexagonal molybdenum oxide structure (1991)
    s.l. : American Chemical Society
    Chemistry of materials 3 (1991), S. 1011-1012 
    Details
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/cm00018a012
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Sulfhydrylcellulose: a new medium for chromatography of mercurated polynucleotides (1981)
    s.l. : American Chemical Society
    Biochemistry 20 (1981), S. 4243-4246 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00518a001
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Acenaphthene Chemistry. VI.1,2 Preparation and Reactions of Some Pyracene Glycols (1960)
    s.l. : American Chemical Society
    The @journal of organic chemistry 25 (1960), S. 356-358 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01073a011
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Erhöhte Phytansäurespiegel in Plasma und Leber bei einem Kleinkind mit unklarem Hirnschaden (1974)
    Springer
    Journal of molecular medicine 52 (1974), S. 651-653 
    Details
    ISSN: 1432-1440
    Keywords: Dystrophy ; cerebral damage ; alpha-oxydation ; phytanic acid ; Refsum's disease ; Dystrophie ; Hirnschaden ; alpha-Oxydation ; Phytansäure ; Refsum-Krankheit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In Serum und Leber eines Kleinkindes mit unklarem Hirnschaden konnten größere Mengen von 3,7,11,15-Tetramethylhexadecansäure (Phytansäure) nachgewiesen und mittels Gaschromatographie und Massenspektroskopie (GCMS) identifiziert werden. Unter den Fettsäuren der Serumtriglyceride betrug ihre Konzentration maximal 8,5%. Bisher wurde Phytansäure nur bei der Heredopathia atactica polyneuritiformis (Refsum-Krankheit) vermehrt gefunden, für die ihre Speicherung pathognomonisch ist. Unser Patient weist die charakteristischen Symptome der Refsum-Krankheit nicht auf. Es handelt sich damit um den ersten Fall einer Phytansäurespeicherung, ohne daß eine Refsum-Krankheit vorliegt.
    Notes: Summary Considerable amounts of 3,7,11,15-tetramethylhexadecanoic acid (phytanic acid) could be identified by gasliquid chromatography and mass spectrometry (GCMS) in serum and liver of an infant with cerebral damage of unknown etiology. The concentration of phytanic acid in serum triglyceride fatty acids was 8.5%. Up to now, increased levels of phytanic acid was found only in heredopathia atactica polyneuritiformis (Refsum's syndrome) for which it's occurrence was considered pathognomonic. Our patient does not exhibit the typical symptoms of Refsum's disease and represents the first case of phytanic acid storage without heredopathia atactica polyneuritiformis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01468803
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Reliability of tonometric intramucosal PCO2 measurement with a phosphate-buffer solution (1995)
    Springer
    Intensive care medicine 21 (1995), S. 387-388 
    Details
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01705423
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Quantitative determination of single serum proteins during acute hepatitis in childhood (1978)
    Springer
    European journal of pediatrics 128 (1978), S. 123-128 
    Details
    ISSN: 1432-1076
    Keywords: Serum proteins ; Acute hepatitis ; Childhood
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Fifteen serum proteins were estimated by linear immunodiffusion in blood samples from children with acute hepatitis. Blood was drawn at the beginning of the disease and three weeks later. The results were compared with results obtained from a group of age-matched normal children. At the beginning of the disease prealbumin and beta-2-glycoprotein I were depressed, whereas alpha-1-acid-glycoprotein, alpha-1-antitrypsin, ceruloplasmin and alpha-2-HS-glycoprotein were found to be elevated. Alpha-2-macroglobulin, transferrin and beta-lipoprotein showed a significant elevation after three weeks. Beta-1-A/C, IgM and IgG remained elevated during the time of observation. Albumin, haptoglobin and IgA were similar in patients and controls and did not change during the period of observation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00496997
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Schwerer Arzneimittel-Ikterus durch das Tuberculostaticum Isonicotinsäurehydrazid (INH) bei einem Kleinkind mit Phenylketonurie (1973)
    Springer
    European journal of pediatrics 115 (1973), S. 49-58 
    Details
    ISSN: 1432-1076
    Keywords: Phenylketonuria ; Seizures ; Isoniazid ; Jaundice ; Electron microscopy ; Degeneration of organelles in liver cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einem jordanischen Kleinkind, das wegen einer Phenylketonurie mit cerebralen Krampfanfällen seit 1 Jahr mit Primidon und Ospolot behandelt und seit 7 Monaten mit einer phenylalaninarmen Diät unter Zusatz eines Aminosäurengemisches ernährt wurde, entwickelte sich nach 3 monatiger INH-Medikation ein hepatocellulärer Arzneimittelikterus. Dieser erwies sich klinisch und histologisch als reine Form einer toxischen Hepatose ohne entzündliche Symptome. Die elektronemmikroskopische Untersuchung von Leberbiopsiematerial 2 Wochen nach dem Höhepunkt des Ikterus (28 mg% Gesamtbilirubin im Serum) erlaubte den Nachweis eines intracellulären Transportdefektes des bereits konjugierten Bilirubins in den Leberepithelien. Das Pigment wurde analog dem Dubin-Johnson-Syndrom in peribiliären Lysosomen gespeichert. Weitere für die Pathogenese aufschlußreiche Befunde wurden an den Organellen der Hepatocyten erhoben: Hydropische Schwellung des hypertrophierten glatten endoplasmatischen Reticulums bei gleichzeitiger Reduktion des rauhen endoplasmatischen Reticulums, Glykogenschwund und Degeneration der Mitochondrien. Bei der Kontrollbiopsie nach 1/2 Jahr waren alle Befunde bis auf die lysosomale Speicherung normalisiert.
    Notes: Abstract After being treated with isonicotinic acid hydrazine (INH) for 3 months a 3-year-old Jordanian boy with phenylketonuria developed severe hepatocellular jaundice. In addition to INH the patient had received Primidone and Ospolot® for 1 year and a PKU diet for 7 months without any side effects. The liver biopsy 2 weeks after the peak of jaundice revealed no signs of hepatitis on light microscopy. An electron microscope investigation showed a defect in the intracellular transport system of bilirubin; bile pigment was stored in peribiliar lysosomes in the same way as in the Dubin-Johnson Syndrome. The smooth endoplasmatic reticulum was increased and vacuolized, whereas rough endoplasmatic reticulum, mitochondria, and glycogen were reduced. In a control biopsy nearly 6 months after the jaundice the morphologic alterations of the liver had normalized with the exception of the lysosomal changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00438990
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...