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  • 1
    Electronic Resource
    Electronic Resource
    Identification of the series-specific random amplified polymorphic DNA markers of Viola species (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 117 (1998), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Although many Viola species are grown as ornamentals, no information on molecular markers is available for the classification and breeding of Viola. Random amplified polymorphic DNA (RAPD) analysis was applied to identify series-specific molecular markers from the series Pinnatae, Chinensis, and Variegatae of Viola species in the subsection Patellares. We report eight RAPD markers which can be used to distinguish three different series of Viola species based on morphological characters. The eight RAPD markers we identified could be useful to classify Viola species and to assist the hybrid breeding of new varieties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1998.tb01945.x
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  • 2
    Electronic Resource
    Electronic Resource
    Geochemistry and mineralization age of magnesian skarn-type iron deposits of the Janggun mine, Republic of Korea (1998)
    Springer
    Mineralium deposita 33 (1998), S. 379-390 
    Details
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The Janggun iron deposits, Republic of␣Korea, occur as lens-shaped magnesian skarn, magnetite and base-metal sulfide orebodies developed in the Cambrian Janggun Limestone Formation. Mineralization stage of the deposits can be divided into two separate events. The skarn stage (107 Ma) consists of magnetite, pyrrhotite, base-metal sulfides, carbonates and magnesian skarn minerals. The hydrothermal stage (70 Ma) consists of base-metal sulfides, native bismuth, bismuthinite, tetrahedrite, boulangerite, bournonite and stannite. Mineral assemblages, chemical compositions and thermodynamic considerations indicate that formation temperatures, −log fs2 and −log fo2 values of ore fluids from the skarn stage were 433 to 345 °C, 8.1 to 9.7 bar and 29.4 to 31.6 bar, and the hydrothermal stage was 245 to 315 °C, 10.4 to 13.2 bar and 33.6 to 35.4 bar, respectively. Thermochemical considerations indicate that the XCO2 during magnesian skarnization ranged from 0.06 to 0.09, and the activity of H+ presumably decreased when the fluids equilibrated with host dolomitic limestone which resulted in a pH change from about 6.1 to 7.8, and decreases in fo2 and fs2. The δ34S values of ore sulfides have a wide range from 3.2 to 11.6 ‰ (CDT). Calculated 34SH2 S values of ore fluids are 2.9 to 5.4 ‰ (skarn stage) and 8.7 to 13.5 ‰ (hydrothermal stage). These are interpreted to represent an initial deep-seated, igneous source of sulfur which gave way to influence of oxidized sedimentary sulfur to hydrothermal stage. The δ13C values of carbonates in ores range from −4.6 to −2.5 ‰ (PDB). It is likely that carbon in the ore fluids was a mixture of deep-seated magmatic carbon and dissolved carbon of dolomitic limestone. The δ18OH2 O and δD values (SMOW) of water in the ore fluids were 14.7 to 1.8 and −85 to −73 ‰ during the skarn stage and 11.1 to −0.2 and −87 to −80 ‰ in the hydrothermal stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001260050156
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  • 3
    Electronic Resource
    Electronic Resource
    Chlorophyll fluorescence assay for kanamycin resistance screening in transgenic plants (1998)
    Springer
    Plant cell reports 17 (1998), S. 189-194 
    Details
    ISSN: 1432-203X
    Keywords: Key words Chlorophyll fluorescence ; Kanamycin resistance screening ; Tobacco ; Arabidopsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The applicability of a chlorophyll fluorescence assay for kanamycin (Km) resistance screening in transgenic tobacco (Nicotiana tabacum) and Arabidopsis thaliana plants was investigated. In wild-type leaves incubated in the presence of 200 mg/l Km, a decrease in maximum variable fluorescence ((Fv)m) and a significant increase in constant fluorescence (Fo) were observed. Using (Fv)m/Fo as a screening parameter, we were able to distinguish Km-treated samples from untreated samples within 4 days. This parameter was applied to Km resistance screening using tobacco plants transformed with the nptII gene via Agrobacterium. Among 74 shoots selected on medium containing 200 mg/l Km, 37 plants were scored as Km sensitive by the chlorophyll fluorescence assay. These 74 scorings proved to be accurate, as reconfirmed by (1) polymerase chain reaction amplification of the transgene, (2) enzymatic assay of neomycin phosphotransferase and (3) leaf disc assay. Using the chlorophyll fluorescence assay, we could also screen 3-week old Arabidopsis plants carrying the nptII gene. These results clearly demonstrate the reliability and efficiency of this nondestructive assay for Km resistance screening of transgenic plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050376
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  • 4
    Electronic Resource
    Electronic Resource
    In Situ Fixed-Angle X-ray Reflectivity Measurement of Thin-Film Roughness and Thickness during Deposition (1998)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 31 (1998), S. 181-184 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: X-ray reflectivity was used to measure in situ the surface roughness and thickness of a thin film during thin-film growth. In this experiment, the sample and detector positions were held at fixed angles. An oscillating reflectivity intensity as a function of time was observed as the film thickness grew. The oscillation amplitude was damped as the surface roughness increased. Surface roughness as a function of time can be determined by analyzing the profile of oscillation intensity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S002188989700928X
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  • 5
    Electronic Resource
    Electronic Resource
    The Effect of Heating Rate on the Reactive Sintering of Ti-48%Al Elemental Powder Mixture (1998)
    Springer
    Journal of materials science 17 (1998), S. 1367-1370 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026412009992
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  • 6
    Electronic Resource
    Electronic Resource
    Alternations of surface antigens on leukocytes after severe injury: correlation with infectious complications (1998)
    Springer
    Intensive care medicine 24 (1998), S. 152-156 
    Details
    ISSN: 1432-1238
    Keywords: Key words Polymorphonuclear cells ; Mononuclear cells ; CD11b ; CD16 ; CD25 ; Trauma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To investigate the alternations of surface antigens of leukocytes after severe injury and the correlation with clinical outcome. Setting: Emergency Department and Intensive Care Unit of a university hospital. Patients: Patients with severe trauma (injury severity score 〉 16) were enrolled. Those who were transferred or had critical injuries were excluded. Measurements and results: Polymorphonuclear cells (PMN) and mononuclear cells (MN) were isolated from patients on the 1st, 3rd and 7th day following injury. The mean fluorescent expressions of CD11b and CD16 of PMN, and CD25 of MN were measured and compared with those obtained from paralleled controls. Sixteen injured patients were included. The CD11b expressions of PMN increased on the 1st day and were still high on the 7th day. The CD16 expressions decreased on the 1st day and CD25 decreased on the 3rd day; both were still low on the 7th day. Six patients developed infectious complications. CD11b expression remained high and CD16 expression remained low on three measurements of the infectious patients, whereas both expressions recovered on the last measurement of non-infectious patients. CD25 expression remained low in both groups. Three infectious patients with pneumonia died from mutiple organ failure. Conclusion: Phenotypic alternations of leukocytes develop early after severe injury. The alternations may represent a state of activation of PMN and subsequent suppression of IL-2 related immunity. Persistent activation of PMN with enhanced CD11b and attenuated CD16 expression indicates the development of infectious complications and a poor prognosis can be anticipated if the infectious sites can not be controlled early.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001340050537
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  • 7
    Electronic Resource
    Electronic Resource
    Ignitor and Thickness Effects on Upward Flame Spread (1998)
    Springer
    Fire technology 34 (1998), S. 18-38 
    Details
    ISSN: 1572-8099
    Keywords: flame spread ; ignitor effects ; propagation criteria ; thickness effects ; transient effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract The effects of a material's ignitor characteristics and burning duration on upward wall flame spread are investigated. The ignitor is represented as an energy line source. Its energy release rate and its duration after ignition are considered. The material is represented as a finite, thick noncharring material with properties representative of polymethylmethracrylate (PMMA). A Volterra integral equation is solved for upward flame speed by numerical methods, and a transient, noncharring burning rate model is included. Results show the influence on propagation of ignitor effects and material thickness. A propagation map is computed showing the domains of flames that spread and flames that stop. Criteria for propagation and how propagation affects fire growth are considered in a standard room-corner test.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1015356830962
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  • 8
    Electronic Resource
    Electronic Resource
    Solution Bounds for the Discrete Riccati Equation and Its Applications (1998)
    Springer
    Journal of optimization theory and applications 99 (1998), S. 443-463 
    Details
    ISSN: 1573-2878
    Keywords: Discrete Riccati equation ; robust stabilization ; time-delay systems ; robust stabilizability criterion ; state feedback control laws
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper, we address the estimation problem for the solution of the discrete algebraic matrix Riccati equation. Both upper and lower bounds are measured. Compared to the majority of the approaches proposed in the literature, the present results are sharper. We also apply the results obtained to solve the robust stabilization problem of discrete time-delay systems. A robust stabilizability criterion and the corresponding state feedback control law are proposed. Furthermore, the tolerable bound of the delay term is also estimated. Finally, numerical examples are given to demonstrate the applications of the results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1021730512293
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