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  • Cryptococcus neoformans  (2)
  • Magnetic resonance imaging  (2)
  • Allylic stannane  (1)
  • Chiral titanium complex  (1)
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Materialart
Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    Enantio- and diastereoselective catalysis of addition reaction of allylic silanes and stannanes to glyoxylates by binaphthol-derived titanium complex
    Amsterdam : Elsevier
    Tetrahedron 49 (1993), S. 1783-1792 
    Details
    ISSN: 0040-4020
    Schlagwort(e): Allylic silane ; Allylic stannane ; Asymmetric catalysis ; Binaphthol-derived titanium dihalide ; Carbonyl-addition reaction ; Carbonyl-ene reaction ; Chiral titanium complex ; Diastereocontrol ; Enantiocontrol ; Glyoxylate
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4020(01)80535-4
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Posterior cranial fossa dural arteriovenous malformation with a varix mimicking a thrombosed aneurysm: case report (1993)
    Springer
    Neuroradiology 35 (1993), S. 210-211 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Dural arteriovenous malformation ; Posterior cranial fossa ; Varix ; Computed tomography ; Magnetic resonance imaging ; Thrombosed aneurysm
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Dural arteriovenous malformations (AVMs) in the posterior cranial fossa are relatively infrequent. Intradural haemorrhage is one of their specific complications. Angiographic demonstration of varices or aneurysmal structures is one of the hallmarks of severe cases. We report a patient with posterior cranial fossa dural AVM associated with a varix mimicking a thrombosed aneurysm on CT and MRI. Internal carotid and vertebral angiography failed to demonstrate an aneurysm, but external carotid injection revealed a dural AVM affecting the sigmoid sinus, and a varix. The AVM was completely eliminated by embolization. When a dural AVM is suspected clinically selctive angiography should be performed to confirm the diagnosis even when CT or MRI do not show dilated vessels.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00588496
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Acquired epidermoid tumour in the thoracic spinal canal (1993)
    Springer
    Neuroradiology 35 (1993), S. 316-318 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Epidermoid tumour ; Iatrogenic lesion ; Thoracic spine ; Magnetic resonance imaging
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Acquired spinal epidermoid tumours are rare, and probably caused by skin fragments that have been transplanted by trauma or lumbar puncture. They almost always occur in the region of the cauda equina. We present an acquired spinal epidermoid tumour at the T 10 level, with pathological confirmation. A skin fragment had migrated to a site where it developed into a tumour.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00602624
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    A vitamin-free minimal synthetic medium forCryptococcus neoformans (1996)
    Springer
    Mycopathologia 133 (1996), S. 139-142 
    Details
    ISSN: 1573-0832
    Schlagwort(e): Cryptococcus neoformans ; growth ; medium ; physiology ; thiamine ; vitamins
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract The use of a simple synthetic medium is essential for study on the growth and physiology ofCryptococcus neoformans. In the present study, a minimal synthetic liquid medium (MSM) was tested for the growth of 23C. neoformans strains. This medium contained a low concentration of glucose, ammonium sulphate and inorganic salts with a pH value of 4.5, but no amino acids or vitamins. The strains were starved for 4 days to eliminate nutrients which might have been carried over from their pre-culture medium. Then, they were inoculated in the MSM at an initial OD of 0.020 at 550 nm and incubated at 37 °C for 20 days. Cell growth was generally monitored daily by measuring the absorbance at 550 nm. The medium supported the growth of the strains tested and gave an average final OD of 0.500. The results obtained indicate thatC. neoformans may be autotrophic with respect to vitamins and in particular to thiamine. The MSM medium is easy to prepare and store. It is highly reproducible and useful for studies on the growth and physiology ofC. neoformans.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02373020
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  • 5
    Digitale Medien
    Digitale Medien
    Phospholipase activity in Cryptococcus neoformans (1996)
    Springer
    Mycopathologia 136 (1996), S. 119-123 
    Details
    ISSN: 1573-0832
    Schlagwort(e): Cryptococcus neoformans ; phospolipase ; virulence ; AIDS
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Phospholipases have only been detected in a few fungi and yeasts, in particular in Candida albicans. Secreted phospholipases are considered by some researchers to be a potential factor of virulence and pathogenicity in C. albicans. Twenty-three Cryptococcus neoformans strains were tested in order to observe phospholipase production. Twenty-two of the 23 strains tested were able to produce phospholipases, and the ratio diameter of the colony to total diameter of the colony plus zone of precipitation (Pz) ranged between 0.271 and 0.949. C. neoformans, just like C. albicans, can be divided on the basis of the Pz into different strains according to their virulence and pathogenicity. There also appeared to be a correlation between the phospholipase production and the size of the capsule in the strains isolated from AIDS patients. For this reason, further studies on C. neoformans phospholipase activity would be useful in evaluating the virulence of different strains.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00438916
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