Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    An Unusual Cause of Spinal Paraplegia Intramedullary Schistosomiasis (1999)
    Springer
    Acta neurochirurgica 141 (1999), S. 105-106 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050273
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Internal Carotid Artery Injury and Occlusion from Camel Collision (1998)
    Springer
    Acta neurochirurgica 140 (1998), S. 633-634 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050154
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Characterization of SnO2-based H2 gas sensors fabricated by different deposition techniques (1997)
    Springer
    Journal of materials science 8 (1997), S. 23-27 
    Details
    ISSN: 1573-482X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Thick and thin films of SnO2 are extensively used for resistive gas sensors. Characteristics are compared for films produced by four different techniques – chemical vapour deposition (CVD), spray pyrolysis, vacuum evaporation and screen printing. The films are characterized for H2 sensing only, using a static measurement system to investigate their temperature selectivity. The samples are tested at a concentration of 300 p.p.m. H2 gas, a typical value for comparison. No selective peak is observed for CVD and spray deposited samples, and the selective peak for vacuum evaporated samples has a low sensitivity. But the selective peak for screen printed samples has a sensitivity of 55% (δR/Rair). And what is more, the screen printed samples have a repeatable response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018544702391
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Dose-dependent relationship of polymeric hydrogels on motility and vitality of human spermatozoa in vitro (1995)
    Springer
    Journal of materials science 6 (1995), S. 192-196 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract Alteration in motility and vitality of human spermatozoa treated with various polymeric hydrogels in vitro has been studied. Different copolymers of acrylic acid-co-methylmethacrylate, poly (AA-co-MMA); acrylic acid-co-butylacrylate, poly (AA-co-BA); Itaconic acid-co-methylmethacrylate, poly (IA-co-MMA); styrene maleic anhydride, poly (SMA) and homo-polymers of polyacrylic acid, poly (AA); poly methylmethacrylate, poly (MMA) were taken. Of all the polymers studied, the following three groups of water-insoluble polymers, namely poly(IA-co-MMA), poly(AA-co-MMA) and poly (AA-co-BA) proved to be strong inhibitors of spermatozoa motility and vitality. The homopolymer of acrylic acid which is water soluble, also exhibited strong inhibitory action. Poly (MMA) did not show any such effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00146854
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Effect of thickness on H2 gas sensitivity of SnO2 nanoparticle-based thick film resistors (1996)
    Springer
    Journal of materials science 7 (1996), S. 267-270 
    Details
    ISSN: 1573-482X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The effect of thickness on the p.p.m. level H2 gas sensitivity of SnO2 nanoparticle-based thick film resistors is reported. The nanoparticles are synthesized by a sol-gel method and the films are prepared using standard screen printing technology. The thickness of the films is varied from a few micrometers to a few hundred micrometers. The results indicate that the sample having thickness 76 Μm gives the maximum sensitivity. The mechanism of the change in sensitivity with thickness is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00188953
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    The European space information system (ESIS) (1995)
    Springer
    Experimental astronomy 6 (1995), S. 143-162 
    Details
    ISSN: 1572-9508
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract ESIS is a modern service to the scientific community that provides uniform on-line access to a wide variety of multi-wavelength data. Catalogue information, images, spectra and other data products can be retrieved in a simple way from a number of geographically distributed and intrinsically different archives. An important characteristic of ESIS is the capability to compare data from different experiments and missions, potentially increasing the scientific exploitation of the archived data. ESIS also provides an extensive bibliographic information service which includes transparent access to SIMBAD and to about 500,000 abstracts. This article gives general information about the astronomy version of the ESIS system and provides a description of its architecture and of the services provided. Most of the ESIS software was developed in 1992–1993, i.e. at a time when hardware, software and network technology underwent rapid evolution. Because of this highly evolving environment a fully formal approach to software development (i.e., compliant with high level engineering standards) could not be followed. A mixture of prototyping and a more formal approach proved to be flexible enough to cope with the rapid evolution and has lead to the current system which is sufficiently robust and makes large use of the latest technology. The ESIS services can be accessed either via client software that is available for VMS or UNIX operating systems, or via the World Wide Web through NCSA-Mosaic and ESIS developed applications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00421130
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Adventitious rooting in shoot cuttings of Azadirachta indica and Pongamia pinnata (1998)
    Springer
    New forests 16 (1998), S. 81-88 
    Details
    ISSN: 1573-5095
    Keywords: auxins ; B-vitamins ; clonal seed orchard ; rooting zone ; soluble sugars ; vegetative propagation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Adventitious rooting in shoot cuttings of neem (Azadirachta indica) and karanj (Pongamia pinnata) was investigated in different seasons. The influence of auxins and B-vitamins (neem only) was evaluated. Maximum rhizogenesis coincided with the emergence of new sprouts i.e. February (neem) and March (karanj). Considering both rooting percentage and root biomass, IBA was the most effective auxin tested. Compared to auxin free controls, IBA (1000 ppm in neem and 800 ppm in karanj) significantly increased adventitious rooting percentage (80 to 100 % respectively), the numbers of roots and root biomass for both species. In neem, B-vitamin treatment yielded 40–50% rooting for cuttings. This was significantly greater than rooting for controls but equivalent to IAA treatments. In neem, some of the cuttings treated with 2000–3000 ppm IBA had well developed root systems without any sprouts. In karanj, all auxin treatments promoted sprouting. The level of total soluble sugars in the rooting zone of neem and karanj was higher in non-rooted than rooted cuttings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006586603388
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Root surface area measurements based on adsorption and desorption of nitrite (1995)
    Springer
    Plant and soil 175 (1995), S. 133-137 
    Details
    ISSN: 1573-5036
    Keywords: nitrite adsorption/desorption ; regression analysis ; root surface area
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A method, based on the negative adsorption of NO2 -, has been developed to determine surface area of roots. Young roots of 3–4 year old plants ofAcacia catechu, Eucalyptus camaldulensis andLeucaena leucocephala were up-rooted and cut into 18 cylindrical pieces. Each root piece was immersed individually for 10 sec in 0.05M, 0.10M and 0.15M aqueous NaNO2 solution and the excess solution on the root surface allowed to drain off. It was then transferred to conical flask containing distilled water and shaken for 15 min for desorption of nitrite. A known quantity of this aliquot was reacted with 1% acidic sulphanilamide and 0.02% NED HCl. A pink colour developed, and its optical density was read at 540 nm. A positive linear correlation was noted between colour density and root surface area. The respective correlation coefficientvalues for 0.05M, 0.10M and 0.15M NaNO2 solutions were 0.973, 0.963 and 0.964 forAcacia catechu, 0.933, 0.903 and 0.898 forEucalyptus camaldulensis and 0.968, 0.976 and 0.972 forLeucaena leucocephala (significant atp〈0.001). The method was successfully adopted to determine the root surface area of seedlings ofAlbizia lebbek, A. procera, Acacia auriculiformis, A. nilotica, Dalbergia latifolia andD. sissoo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02413018
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...