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  • 1
    Series available for loan
    Series available for loan
    A digital computer simulation of the annual snow and soil thermal regimes at Barrow, Alaska (1975)
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Details Availability
    Call number: ZSP-202-331
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Introduction. - An overview of the model structure and operation. - Operation of subroutines. - TSTART. - FOMO. - REAWEA. - SEARCH. - STEMP. - TUNPIC. - Development history of the simulator. - The simulation of snow fence effects. - Urbanization and meltout. - Conclusion. - Literature cited. - Appendix A: Mathematical notation. - Appendix B: Computerprogram. - Abstract.
    Description / Table of Contents: An annual snow-soil simulator for Arctic tundra was developed using coupled models of surface equilibrium temperature and substrate thermal diffusion. Snow ripening, melt and accumulation are modeled in the simulator which is forced with daily weather data. The simulator predicts that a snow fence array capable of producing drift deeper than 4.2 meters will initiate a permanent snowfield at Barrow, Alaska. Such a man-induced snowfield could serve as a reliable source of fresh water for Barrow and similar villages in the North Slope region of Alaska. Further analysis indicated that albedo reduction due to dust fall, snow removal, etc., is dominant over aerodynamic effects in producing the early spring meltout observed at Barrow Village.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 331
    URL: http://www.worldcat.org/oclc/1381484
    Language: English
    Branch Library: AWI Library
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  • 2
    Electronic Resource
    Electronic Resource
    Conversation Analysis (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Anthropology 19 (1990), S. 283-307 
    Details
    ISSN: 0084-6570
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Ethnic Sciences , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.an.19.100190.001435
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  • 3
    Electronic Resource
    Electronic Resource
    Comparison of Techniques for the Isolation of T-strain Mycoplasmas (1969)
    [s.l.] : Nature Publishing Group
    Nature 222 (1969), S. 274-275 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. T-mycoplasma colony (arrowed) and epithelial cells on solid medium without added urea. Medium inoculated with material from the human urethra (x 192). We have compared liquid and solid media for isolation, the same clinical material being examined in Portsmouth and Salisbury. We used a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/222274a0
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  • 4
    Electronic Resource
    Electronic Resource
    Notes and Correspondence: The Sulfuric Acid Industry (1918)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 10 (1918), S. 751-752 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50105a600
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  • 5
    Electronic Resource
    Electronic Resource
    Microprocessor control of a small vacuum system
    Amsterdam : Elsevier
    Vacuum 30 (1980), S. 160-166 
    Details
    ISSN: 0042-207X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0042-207X(80)80678-6
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  • 6
    Electronic Resource
    Electronic Resource
    The relationship between dissolved oxygen concentration, ATP and embryogenesis in carrot (Daucus carota) tissue cultures
    Amsterdam : Elsevier
    Plant Science Letters 10 (1977), S. 265-274 
    Details
    ISSN: 0304-4211
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0304-4211(77)90138-9
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  • 7
    Electronic Resource
    Electronic Resource
    Role perceptions of services: A cross-cultural comparison with behavioral implications
    Amsterdam : Elsevier
    Journal of Economic Psychology 10 (1989), S. 543-558 
    Details
    ISSN: 0167-4870
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology , Economics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-4870(89)90042-1
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  • 8
    Electronic Resource
    Electronic Resource
    A comparison between two methacrylate cements as delivery systems for bioactive human growth hormone (1995)
    Springer
    Journal of materials science 6 (1995), S. 590-596 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Two methacrylate orthopaedic bone cements were compared as delivery systems for bioactive human growth hormone (hGH). These were London Hospital Bone Cement (LHBC) and a poly(methylmethacrylate) (PMMA) bone cement. A uniquely precise bioassay for hGH, named ESTA, was used. It was adapted to assess both the bioactivity of the hormone released from hGH loaded cements and also the in vitro cytotoxicity of the cements themselves. Eluates from both cements proved cytotoxic, this being most pronounced for LHBC. The cytotoxicity could be readily diluted out, and a lengthy exposure time (〉 24 h) was required to kill the cells. Both cements released similar quantities of bioactive hGH, which were ∼0.6% of that originally incorporated. This could potentially provide significantly high local concentrations of the hormone to the tissues surrounding the implant. Approximately double quantities of hormone were released as measured by immunoassay, leading to significant decreases (p=〈0.0001) in the B:I ratios of the released hormone. The effect was greatest for LHBC. Our results suggest that the structural integrity of the hGH molecules released from LHBC were the most compromised.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00121283
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  • 9
    Electronic Resource
    Electronic Resource
    Inhibition of Haemaggregation by Lepromin and Other Mycobacterial Substances (1967)
    [s.l.] : Nature Publishing Group
    Nature 216 (1967), S. 1019-1020 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In view of the shortage of in vitro methods for detecting the biologically active components of Mycobacterium leprae and related organisms we have attempted to show that they inhibit haemaggregation. The materials for assay were dialysed against a mixture of distilled water and ion exchange resins ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2161019a0
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  • 10
    Electronic Resource
    Electronic Resource
    Release of bioactive human growth hormone from a biodegradable material: Poly(∊-caprolactone) (1998)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 40 (1998), S. 204-213 
    Details
    ISSN: 0021-9304
    Keywords: growth hormone delivery ; bioactivity ; poly(∊-caprolactone); solvent casting; particulate leaching ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: We have characterized the biodegradable material poly(∊-caprolactone) (PCL) as a delivery system for recombinant human growth hormone (hGH). Two contrasting methods for the manufacture of the biomaterial were investigated: namely, solvent casting and solvent casting particulate leaching; the latter yielded porous PCL discs. The degree of porosity, which was assessed by scanning electron microscopy, could be controlled by incorporating selected concentrations of particulate sodium chloride during the manufacturing process. Bioactive hGH released from the PCL preparations was quantified with a highly sensitive and precise bioassay which was based upon hGH activation of rat lymphoma Nb2 cells. Eluates obtained from control discs of PCL which had not been loaded with hGH proved to be nontoxic when tested on these cells. The release of bioactive hGH from hormone-loaded nonporous discs of PCL was found to be a direct function of the initial hormone loading dose. Increased porosity of the discs manufactured by solvent casting particulate leaching increased the delivery of hGH from discs which had been immersion loaded. However, hGH release after surface loading was independent of porosity. Hormone concentrations were also assessed by immunoassay so that the ratios of bio- to immunoactivity (B:I ratio) of the hormone release could be determined. We found that the B:I ratio of the hormone after release from unstored discs was identical to that of the hormone prior to its incorporation into the PCL, demonstrating that the mild incorporation procedures utilized had not adversely affected the structural integrity of the hormone. However, if the hormone-loaded discs were stored at 37°C prior to elution, the B:I ratios of the hGH released decreased indicating that this compromised the bioactive site. © 1998 John Wiley & Sons, Inc. J Biomed Mater Res, 40, 204-213, 1998
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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