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  • Electronic Resource  (38)
  • 1995-1999  (20)
  • 1990-1994  (13)
  • 1970-1974  (5)
  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 5125-5129 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The adsorption of oxygen on H-terminated Si(100) surfaces has been investigated by high-resolution electron energy loss spectroscopy (HREELS). Adsorptions of atomic oxygen occur even at room temperature. Si-OH stretching and Si-O-Si (B1) vibrational modes are observed in HREELS spectra, which indicates that atomic oxygen is adsorbed on sites of Si—H bonds and Si—Si back bonds. On the other hand, H-terminated surfaces are very stable for molecular oxygen, which cannot adsorb until 380 °C on the surface. A dissociative adsorption of molecular oxygen is observed above 380 °C and the activation energy of the adsorption is 2.0 eV at 380–450 °C. This value coincides with the desorption energy of hydrogen atoms from a Si(100) surface with the monohydride phase. These results indicate that the dangling bonds are essential to the adsorption of molecular oxygen on Si(100) surfaces. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 56 (1990), S. 411-413 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Retinal derivatives were synthesized and their third-order nonlinear optical properties were measured by degenerate four-wave mixing with temporally incoherent nanosecond laser pulses. Fast optical nonlinearities, whose response time was shorter than 30 ps, were observed. The magnitudes of resonant third-order hyperpolarizability were found to be 10−31∼10−29 esu. The large optical nonlinearities were of electronic origin.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 2463-2465 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Resonant nonlinear optical response was measured in a crystalline cyanine dye MPER, 5-(5-morpholino-2,4-pentadienilydene)-3-ethylrhodanine, which had a broad reflection band due to large oscillator strength of an electronic excited state in the visible wavelength region. Nonlinear optical response measured by the change of reflectivity under optical pumping at the wavelength of the peak of the excited state was composed of fast and slow components. Response time of the fast component was less than 4 ps and its nonlinear optical coefficient χ(3) was evaluated to be (5±2)×10−15 m2/V2 [(4±2)×10−7 esu], which was one of the largest among organic materials.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 3 (1973), S. 99-102 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The cathodic polarization characteristics of the electrode consisting of poly (4-vinylpyridine) bromine complex and graphite powder were investigated. The electrolyte was propylene carbonate containing 1 M LiBr. The rest potential of the electrode was approx. 0.5 V (versus SCE). The coulometric efficiency of the continuous discharge was 52–53%.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 318-320 (Oct. 1999), p. 681-686 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1437-1596
    Keywords: ABO blood groupin ; Contaminated bloodstains ; Sandwich ELISA ; Monoclonal antibody ; Red cell membrane band 3 ; ABO-Blutgruppenbestimmung ; Kontaminierte Blutspuren ; Sandwich ELISA ; Monoklonale Antikörper ; Erythrozytenmembran-Bande 3
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: usammenfassung Die ABO-Blutgruppenbestimmung an menschlichen Blutspuren wurde mit Hilfe einer ELISA-Sandwichtechnik durchgeführt, indem ein Species-spezifischer monoklonaler Antikörper gegen die aminoterminale zytoplasmatische Domäne der menschlichen Erythrozytenmembran-Bande 3 benutzt wurde. In einem Blindversuch wurden alle A-, B- und O-Blutspuren (ein 1 cm langer Faden) und AB-Blutspuren (ein 1,5 cm langer Faden) mit dieser Methode richtig bestimmt. Auch wenn Blutspuren mit anderen Körperflüssigkeiten kontaminiert waren (z. B. Sperma, Speichel) wurden lediglich die ABO-Blutgruppen-Epitope auf der Bande 3 der Erythrozytenmembran nachgewiesen. Auf diese Weise konnte die Identifikation menschlichen Blutes und die Blutgruppenbestimmung von Blutspuren, welche mit anderen Körperflüssigkeiten kontaminiert waren, simultan mit dieser Methode durchgeführt werden.
    Notes: Summary ABO blood grouping of human bloodstains was performed by a sandwich ELISA using a species-specific monoclonal antibody to the amino-terminal cytoplasmic domain of human red cell membrane band 3. In a blind trial, all A, B and O bloodstains (a 1 cm long thread) and AB bloodstains (a 1.5 cm long thread) were accurately typed by this method. Even when bloodstains were contaminated by other body fluids (e.g., semen and saliva), only the ABO blood group epitopes on band 3 of the red cell membrane were detected. Thus, identification of human blood and ABO blood grouping of bloodstains which were contaminated by other body fluids could be simultaneously performed by this method.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1437-7772
    Keywords: Patterns of Care ; Study ; Esophageal cancer Radiation therapy ; The elderly ; Parameter survey ; Age
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background. In Japan, the elderly population is growing rapidly, and therefore, so is the number of cancer patients who are not good candidates for aggressive surgery or chemotherapy. Radiation therapy offers excellent potential for the treatment of such patients, with minimal invasion and functional preservation. A Patterns of Care Study (PCS) examined the parameters of treatments used for patients with esophageal cancer to determine nationwide variations by age. Methods. From July 1996 through February 1997, external nationwide PCS audits were performed for 29 institutions. Medical charts were reviewed for 455 patients with thoracic esophageal cancer treated between 1992 and 1994. The parameters of treatments used for these patients were compared between those aged ≥75 years (elderly; n = 113) and those aged 〈75 years (yourger; n = 342). Results. Surgery was used in 49% of the younger group and in 17% of the elderly group (P 〈 0.0001) while chemotherapy was used in 48% of the younger and 24% of the older group (P 〈 0.0001). The ratio of non-surgery group with radiation therapy increased significantly from 49% to 82% (P 〈 0.0001). Approximately 70% of the non-surgery patients received an external radiation dose of more than 60Gy, even in the elderly (P = 0.3001). Preliminary results showed no significant difference in survival between the two age groups (P = 0.5559). Conclusions. The use of radiation therapy in elderly people with esophageal cancer has increased markedly. The PCS provided important information about variations in radiotherapy parameters in patients with esophageal cancer in relation to age. Such information should be useful for future prospective studies of the elderly.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Nutrient cycling in agroecosystems 49 (1997), S. 287-293 
    ISSN: 1573-0867
    Keywords: carbon cycling ; carbon dioxide sequestration ; carbon sink ; modeling ; terrestrialecosystem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Major conclusions from our two projects focussing on carbon cycling in terrestrial ecosystems are as follows: 1) A rural system or a farmland system tends to be a source of carbon dioxide. However, it was possible to increase carbon dioxide sequestration in soil by changing soil or paddy/upland-field management systems. 2) A model simulation showed that a carbon budget in a natural forest was balanced before cutting but the large minus (source) was observed just after cutting. But the balance changed from minus to plus (sink) in 10 years after cutting. Nearly the same amounts of carbon as that stocked in the timbers before harvesting accumulated in 70-80 years after the cutting. 3) These results indicate the possibility of soils in terrestrial ecosystems as the major sink of atmospheric carbon dioxide.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0533
    Keywords: Pituitary adenoma ; Plurihormonal adenoma ; Immunohistochemistry ; Acromegaly ; Rathke's cleft cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of multiple large Rathke's cleft cyst within a pituitary adenoma presenting with acromegaly is reported. Rathke's cleft cyst within a pituitary adenoma is rare condition, and this is the first report of such a case presenting with acromegaly. An electron microscopic and an immunohistochemical analysis proved that the cyst within the pituitary adenoma of this case differs from cysts found in the embryonic stage of the pituitary gland.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0533
    Keywords: Key words HTLV-I ; HTLV-I-associated ; myelopathy/tropical spastic paraparesis ; Rat model ; Apoptosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In seropositive HTLV-I carrier rats of the WKAH strain inoculated with 2 × 107 MT-2 cells at 3–6 months of age, chronic progressive myeloneuropathy, tentatively designated as HTLV-I-associated myelopathy (HAM) rat disease, occurred when the rats were 19–23 months old. Clinical and pathological findings were basically identical to those of seronegative HAM rats of the same strain neonatally inoculated with MT-2 cells. It appears that a high dose of MT-2 cells (108 cells) is more effective for the induction and acceleration of HAM rat disease. Seronegative and seropositive carriers of other strains (F344, ACI, and LEW), WKAH rats inoculated with HUT-78 (a human T cell line without HTLV-I infection), and untreated WKAH rats at comparable ages did not develop HAM rat disease, thereby indicating that development of this disease is caused by HTLV-I infection and is under strict genetic restriction of the host strain. Chronological examination of HAM rat disease induced by 107 MT-2 inoculation into newborn rats showed that the spinal cord lesion began to develop by 12 months of age. T cells were absent in the affected spinal cord throughout the disease process. There was morphological evidence of apoptotic death of oligodendrocytes in the affected spinal cord. Apoptosis was also confirmed by the specific nick end labeling of the nuclear fragmentation in situ, and the apoptotic oligodendrocytes confined to the demyelinating foci, and the number of apoptotic cells positively correlated with severity of the spinal cord lesion. The collective evidence suggests that the major pathogenetic pathway of HAM rat disease appears to be closely related to apoptotic death of the oligodendrocytes, directly or indirectly associated with HTLV-I infection.
    Type of Medium: Electronic Resource
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