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  • 1990-1994  (16)
  • 1960-1964
  • 1994  (4)
  • 1992  (6)
  • 1990  (6)
  • 1
    Electronic Resource
    Electronic Resource
    New aspects of electron transfer on semiconductor surface: dye-sensitization system (1990)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 94 (1990), S. 3040-3045 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100370a056
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of carbon material as a scanning tunneling microscopy tip for in situ electrochemical studies (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 404-406 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have studied the feasibility of using carbon as a scanning tunneling microscopy tip material for experiments conducted under electrochemical environments. The tips were found to be stable and durable in acidic or alkaline solution for several hours. The fabricated carbon tips were capable of resolving graphite atoms in electrolyte solution under potentiostatic condition as well as in air.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145146
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  • 3
    Electronic Resource
    Electronic Resource
    Juvenile colloid milium: clinical, histological and ultrastructural features (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 19 (1992), S. 0 
    Details
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We report the clinical, histological and ultrastructural features of juvenile colloid milium affecting a brother and sister. In this rare condition, translucent papules develop on sun-exposed areas of skin, with onset in childhood. Histologically and ultrastructurally, the papules consist of amyloid-like material derived from epidermal keratonocytes. A review of the literature suggests a possible genetic abnormality that leads to sun-induced degeneration of keratinocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0560.1992.tb00617.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Biochemical genetic evidence for a hybrid origin of spined loach, Cobitis taenia taenia, in Japan (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 44 (1994), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Starch gel electrophoresis and isoelectric focusing were performed on sarcoplasmic proteins from three taxa of cobitid fish in Japan, Cobitis biwae, C. taenia striata and C. l. taenia. These taxa are hardly distinguishable from each other by external appearance or morphological characters. Electrophoretic patterns of sarcoplasmic proteins from white muscle suggested fixed allelic differences between C. biwae and C. t. striata at two protein-coding loci (parvalbumin and creatine kinase). The third taxon, C. t. taenia, showed composite banding patterns with respect to the above two proteins, suggesting C. t, taenia originated from hybridization between C. biwae and C, t. striata. Previously, C. t, taenia and C. t. striata were believed to have shared a common ancestor subsequent to their divergence from C. biwae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1994.tb01244.x
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  • 5
    Electronic Resource
    Electronic Resource
    Growth-inhibitory effects of 1,25-dihydroxyvitamin D3 on normal and psoriatic keratinocytes (1990)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 123 (1990), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effects of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) on the growth and DNA synthesis of cultured human keratinocytes obtained from involved and uninvolved psoriatic epidermis and normal epidermis were studied. Treatment with 10-8m and 10-7m of 1,25(OH)2D3 inhibited cell growth as follows: 58.5±19.3% and 21.3±13.6% in normal keratinocytes (n=6); 43.8±22.8% and 17.8±12.3% in psoriatic uninvolved keratinocytes (n=4); 51.7±18.2% and 13.2±6.4% in psoriatic involved keratinocytes (n=6). Inhibition was virtually complete at 10-6m. DNA synthesis was also inhibited by 10-8m, 10-7m and 10-6m of 1,25(OH)2D3 as follows: 70.0±8.3%, 59.0±6.8% and 16.7±4.0%, respectively, in normal keratinocytes (n=3); 78.5±13.5%, 51.5±25.5% and 24.5±21.5%, respectively, in psoriatic uninvolved keratinocytes (n=2); and 69.3±14.5%, 41.3±19.1% and 14.8±11.2%, respectively, in psoriatic involved keratinocytes (n=4). These results indicate that 1,25(OH)2D3 functions as a growth inhibitor for cultured human keratinocytes derived from both normal and psoriatic skin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.1990.tb01828.x
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  • 6
    Electronic Resource
    Electronic Resource
    Amorphous nickel-valve metal-platinum group metal alloy electrodes for hydrogen-oxygen sulphuric acid fuel cells (1992)
    Springer
    Journal of applied electrochemistry 22 (1992), S. 1017-1024 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Powder catalysts were prepared by immersion of amorphous Ni-40Zr and Ni-40Ti alloys containing a few at % of platinum group elements in HF solution. This treatment led to preferential dissolution of the valve metal and nickel with a consequent formation of microcrystalline alloy powders consisting of concentrated platinum group elements and some nickel and valve metal. Porous gas-diffusion electrodes prepared by using these alloy catalyst powders were employed for electrochemical reduction of oxygen and oxidation of hydrogen in 1 M H2SO4 at 25°C. The activity of the electrodes prepared from the amorphous alloys containing Pt−Ru, Pt−Rh, Pt and Pd for oxygen reduction was considerably higher than that of the platinum black electrode. Oxidation of hydrogen occurred readily close to the equilibrium potential. Amorphous alloy electrodes containing Pt−Ru, Pt−Rh and Pt were more active than the platinum black electrode for the hydrogen oxidation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01029579
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  • 7
    Electronic Resource
    Electronic Resource
    Polymorphism of coagulation factor XIII B subunit: Further occurrence of FXIIIB*15 in Japanese and phenotyping in bloodstains (1992)
    Springer
    International journal of legal medicine 104 (1992), S. 317-319 
    Details
    ISSN: 1437-1596
    Keywords: Polymorphism FXIIIB ; Population genetics ; Bloodstains ; Polymorphismus FXIIIB ; Populationsgenetik ; Blutspuren
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Der Polymorphismus des FXIIIB wurde bei 555 unverwandten Japanern mit Hilfe der isoelektrischen Fokussierung und anschließendem Immunoblotting untersucht. Fünf allgemein vorkommende Phänotypen und die seltene Variante FXIIIB 15-3 wurden beobachtet. Die Allel-Frequenzen waren FXIIIB = 0,3063, FXIIIB2 = 0,0162, FXIIIB3 = 0,6766 und FXIIIB15 = 0,0009. Die Bestimmung der Phänotypen war auch an Blutspuren mit folgenden Lagerungsbedingungen möglich: Bei 37°C über einen Zeitraum bis zu 4 Monate, bei Raumtemperatur und bei 4°C länger als 6 Monate. Das FXIIIB-System kann einen neuen, aussagekräftigen genetischen Marker für gerichtsmedizinische Blutspurenuntersuchungen darstellen.
    Notes: Summary The polymorphism of FXIIIB was investigated in 555 unrelated Japanese individuals using isoelectric focusing and immunoblotting. Five common phenotypes and a rare variant type FXIIIB 15-3 were observed. The allele frequencies were FXIIIB*1 = 0.3063, FXIIIB*2 = 0.0162, FXIIIB*3 = 0.6766 and FXIIIB*15 = 0.0009. Phenotyping was also possible from bloodstains stored at 37°C for up to 4 months and from bloodstains stored at room temperature and at 4°C for over 6 months. The FXIIIB system can provide a new powerful genetic marker for the medicolegal grouping of bloodstains.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01369549
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  • 8
    Electronic Resource
    Electronic Resource
    Photoelectrochemical information storage using an azobenzene derivative (1990)
    [s.l.] : Nature Publishing Group
    Nature 347 (1990), S. 658-660 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Two types of reversible processes, photochemical cis-trans isomerization (see, for example, ref. 3) and electrochemical oxidation-reduction4, are available in an azobenzene system.FIG. 1 Cyclic voltammograms of trans (dashed line) and cis (solid line) ABD monolayer films on a Sn02 glass electrode. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/347658a0
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Photochromism induced in an electrolytically pretreated Mo03 thin film by visible light (1992)
    [s.l.] : Nature Publishing Group
    Nature 355 (1992), S. 624-626 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The MoO3 amorphous film was prepared by vacuum evaporation of high-purity MoO3 powders (99.9%) onto a l-mm-thick NESA glass substrate (5 x 2.5 cm), with a typical film thickness of -l,OOOnm being obtained. Photochromic experiments were done in air, and a 500-W high-pressure mercury lamp was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/355624a0
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  • 10
    Electronic Resource
    Electronic Resource
    Recurrent low-grade glioma in children with special reference to computed tomography findings and pathological changes (1990)
    Springer
    Child's nervous system 6 (1990), S. 155-160 
    Details
    ISSN: 1433-0350
    Keywords: Recurrence ; Low-grade glioma ; Children ; Malignant transformation ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Recurrent low-grade gliomas in children were studied with special reference to correlation between the computed tomography (CT) scan and pathological findings at recurrence. During the past 16 years (1970–1986) 105 cases of primary pediatric brain tumors were treated in our hospital. Seventeen of these had low-grade glioma, seven of which (five astrocytomas, one ependymoma, and one subependymoma) had recurrence of tumor by the end of 1987. The enhanced CT findings were classified into three types — cystic, false cystic, and solid, according to Lapras' classification. The pathological findings of recurrent tumors were reviewed with particular attention to malignant transformation. The results showed that in two out of three cases where CT findings had changed from initial cystic to solid type at recurrence malignant transformation was revealed. Enhanced CT scan was also useful for detecting small asymptomatic recurrent tumors in children. On the other hand, surgical procedures and adjuvant therapies demonstrated no significant relationship with recurrence. It is suggested that the recurrence of low-grade glioma in children is not rare, and that changes in findings on contrast enhanced CT might reflect malignant transformation in a recurrent tumor, necessitating a careful follow-up.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00308493
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