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  • 1
    ISSN: 1420-9071
    Keywords: Spongionella sp. ; porifera ; cell division inhibitor ; starfish embryos ; furanosesterterpene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Two novel furanosesterterpenes, okinonellins A (1) and B (2), have been isolated from the spongeSpongionella sp. Both compounds inhibit cell division of starfish embryos.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0649
    Keywords: 42.60 ; 52
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 144 (1985), S. 93-95 
    ISSN: 1432-1076
    Keywords: Moyamoya disease ; Arterial occlusive disease ; Short stature ; Syndactylia ; Cerebrovascular circulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We treated a Japanese boy with moyamoya disease accompanied by synbrachydactylia, funnel chest, pes equinus and short stature. Angiograms showed the anomalous origin of the occipital artery in addition to the moyamoya vascular network at the base of the brain. A generalised mesenchymal anomaly was suggested in this case.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0942-0940
    Keywords: Dural AVM ; embolization ; aron alpha ; cyanoacrylate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors report four cases of dural arteriovenous malformation (AVM) treated by a modified technique of embolization. Three cases had posterior fossa dural AVM and one had bilateral supratentorial dural AVM. The authors think that the best way to treat dural AVM is to close its nidus completely. This could be achieved by a safe and easy technique of embolization. The material used for embolization should intimately adhere to the vascular network and should not become fragmented. We used aron alpha (Ethyl-2-cyanoacrylate). This is a biological glue and it sets in a solid membranous form instantaneously on coming into the contact with an ionic medium. It does not get fragmented. Aron alpha was injected into the nidus of the AVM through a cannula inserted only into the main feeding artery in four cases of dural AVM reported here. Postoperative angiography showed complete obliteration of the AVM's, they did not fill either from the treated artery or from the untreated feeding arteries. The technique is easy and safe. There was no operative or postoperative complication. All the patients have remained asymptomatic to date,i.e. 2, 2, 6 and 7 1/2 years after the procedure.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 98 (1989), S. 184-188 
    ISSN: 0942-0940
    Keywords: Autoregulation: pial vessels ; ventricular fluid pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The behaviour of Pial vessels to levels of CSF-pressure between 10 and 100 mmHg induced by vetricular infusion of mock CSF, was observed in 6 cats under barbiturate and N2O anaesthesia, using the cranial window technique and videoangiometry. Supratentorial pressure (STP) equaled infratentorial pressure in the cisterna magna (CMP) throughou. No changes in pial arterial calibres were noted up to a CMP of 13 mmHg (i.e. a cerebral perfusion pressure (CPP) of 100 mmHg). Further increase of CMP to 45 mmHg induced significant arterial dilatation of 40 ± 3.4%. With a further rise of ventricular fluid pressure (VFP) no marked further arterial dilatation occurred. Dilatation of arteries up to 100 um resting diameter and arteries between 100 and 250 um resting diameter and arteries between 100 and 250 um was not significantly different. When CPP approached 40 mmHg, arteries were still 47 ± 3.6% dilated. Pial venous calibre did not vary by more than 20% during elevation of VFP. At CPP 47 mmHg, small and large veins were dilated by 14%. Single venous segments were compressed by crossing pial arteries and caused upstream venous congestion and distension.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food processing and preservation 3 (1980), S. 0 
    ISSN: 1745-4549
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Ovalbumin freeze-dried with or without the addition of glucose was stored at 50°C and 65% relative humidity to study the effect of the Maillard reaction on the chemical properties and conformational composition of ovalbumin. About 70% of available lysine in ovalbumin reacted with glucose before denaturation. The solubility and heat stability of the protein-glucose complex increased with the addition of the hydrophilic group and the repulsion force due to changes of such charged groups. During prolonged storage the changes of charge balance promoted the unfolding of ovalbumin at the expense of α-helix without the loss of β-structure. Insolubilization of the complex was accompanied by the high loss of lysine and arginine residues, brown color development and the formation of aggregates which were not cleaved by SDS plus 2-mercaptoethanol.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 2600-2602 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have presented a novel in situ method which is simple and sensitive, to measure the micromass of the fuel layer in a cryogenic foam target. In this method, a foam shell is mounted on a flexible polyester fiber 7 μm in diameter and 800 μm in length. The fiber is suspended with a stalk which is mechanically vibrated at any given frequency. The resonant frequency of the elastic vibration of a foam-fiber system is measured before and after fuel loading. The mass of the fuel can be determined from the change in the resonance frequency in the range from submicrograms to submilligrams. The resolution of this system, which is limited by the Q factor of the foam-fiber system, is better than 0.2 μg corresponding to the measurement accuracy of 0.1%.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 223-225 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We propose a 1-cm-long cylinder-type target as the gain medium of a recombination-pumped extreme-ultraviolet (XUV) laser. The gain medium plasma was pumped by a long-pulse CO2 laser (400 J energy in 50 ns pulse duration). At the C VI 3d–2p transition (18.2 nm) we obtained the gain-length product up to 2.4, which was estimated from the line intensity ratio of the axial to transverse directions. The electron temperature of 54 eV and density of 1.2×1019 cm−3 near the cylinder wall measured using soft-x-ray spectroscopy satisfied the condition for the generation of the population inversion between n=3 and 2 levels of the C VI ions.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 703-705 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A compound-semiconductor device simulator, in which deep levels in the semi-insulating layers can be taken into account, has been developed. By using this simulator, the electrical properties for the semi-insulating InP buried heterostructure laser diodes were investigated. The leakage current, without passing through the active region, was found to be small when the trap density in the semi-insulating InP layers is more than 3×1015 cm−3 and less than 1×1016 cm−3. This simulator will be a useful tool in predicting the semi-insulating properties of electrical and optical semiconductor devices.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 7 (1983), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The occurrence of intramucosal cysts in the mucosa of resected stomachs was recorded in 91 consecutive patients having synchronous focal (elevated) dysplasia and/or adenocarcinoma elsewhere in the stomach. Intramucosal cysts were classified into foveolar cysts, pyloric gland cysts, fundic gland cysts, intestinal metaplastic cysts and ciliated-cell cysts. The most common type was intestinal metaplastic cyst, which was present in 60% of the patients.
    Type of Medium: Electronic Resource
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