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  • 2005-2009  (19)
  • 1940-1944  (8)
  • 1
    Electronic Resource
    Electronic Resource
    Phenolic Invert Soaps (1941)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 63 (1941), S. 2024-2024 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01852a504
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Precipitation of Carbonated Calcium Phosphate Powders from a Highly Supersaturated SBF Solution (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 59-62 
    Details
    ISSN: 1013-9826
    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
    Notes: Hydroxy carbonated apatite (HCA) powders were prepared by precipitation from amodified SBF solution (5x M-SBF). The ionic concentrations were 5 times higher than in humanblood plasma with the exception of Mg2+ and HCO3- concentrations that were reduced in order toaccelerate crystal growth. Spheroaggregates of HCA platelets with molar (Ca+Mg)/P ratios rangingfrom 1.44 to 1.56 were obtained after precipitation at 50 °C. The crystallite size in c-direction wasapproximately 20 nm and depending on the precipitation time a CO32- content of 1.8 to 5.2 wt.-%was determined. Using this low temperature precipitation method, HCA powders with a highspecific surface area of 83 m2/g and a composition and crystallite size close to those of the mineralphase of human bone were obtained
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.59.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Carbonate Substitution and Preferred Growth Orientation of Biomimetic Apatites (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 330-332 (Feb. 2007), p. 725-728 
    Details
    ISSN: 1013-9826
    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
    Notes: Simulated body fluid (SBF) solutions are widely used for in vitro bioactivity tests and tocoat bioinert materials with biomimetic calcium phosphates. In this study SBF solutions with varyingHCO3- content were used to precipitate hydroxy carbonated apatite (HCA) on a bioactive titaniumsurface. XRD as well as cross-sectional TEM analyses revealed that the biomimetically derivedcrystallites show a preferred growth orientation in direction of their c-axis and perpendicular to thesurface of the substrate. FTIR and Raman analyses revealed that, as long as the HCO3- concentrationin the testing solutions is below 20 mmol/l, only B-type HCA precipitates. Using SBF with a HCO3-concentration equal to human blood plasma (27 mmol/l) leads to a AB-type substitution where, inaccordance with bone mineral, CO32- substitutes PO43- as well as OH-
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.725.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Clinical effects of scaling and root planing on untreated teeth (2005)
    Oxford, UK : Munksgaard International Publishers
    Journal of clinical periodontology 32 (2005), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective: The aim of this report is to examine whether scaling and root planing (SRP) in one area of the mouth may affect periodontal improvement in untreated areas in the same patient, possibly through systemic effects of treatment.Material and Methods: Twenty patients diagnosed with generalized aggressive periodontitis were randomized into treatment (n=11) and no treatment (n=9) groups. Within the treatment group, three quadrants were treated by SRP at week 0, 3, 12, and 24, while a single experimental quadrant remained untreated throughout the study. The outcome for all teeth was assessed using clinical parameters, subtraction radiography, and pathogenic bacteria levels in the subgingival flora over the 24-week study period.Results: Compared with sites in no treatment patients, the treated sites in the treated patients showed a 1 mm decrease in probing depth (PD) (p〈0.01) and a 0.5 mm increase in bone height (p〈0.01) by 24 weeks. In untreated sites within treated subjects, however, PDs tended to improve (p=0.09) but at a reduced rate compared with treated sites. The levels of Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis, and Tannerella forsythensis (Bacteroides forsythus) remained unchanged in untreated sites while levels of Prevetolla intermedia and Treponema denticola tended to decrease as compared with controls but did not reach significance.Conclusions: This study indicates that untreated sites in treated periodontitis patients show a trend towards clinical improvement and exhibit reductions in some but not all periodontopathic bacterial species tested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.2004.00626.x
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  • 5
    Electronic Resource
    Electronic Resource
    Evidence of giant sulphur bacteria in Neoproterozoic phosphorites (2007)
    [s.l.] : Nature Publishing Group
    Nature 445 (2007), S. 198-201 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In situ phosphatization and reductive cell division have recently been discovered within the vacuolate sulphur-oxidizing bacteria. Here we show that certain Neoproterozoic Doushantuo Formation (about 600 million years bp) microfossils, including structures previously interpreted as ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05457
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  • 6
    Electronic Resource
    Electronic Resource
    Palaeontology Undressing and redressing Ediacaran embryos (Reply) (2007)
    [s.l.] : Nature Publishing Group
    Nature 446.2007, 7136, E10-, (2 S.) 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Xiao et al. suggest that the presence of a textured capsule surrounding some Doushantuo globular microfossils calls into question the alternative interpretation of these structures as giant sulphur bacteria similar to modern Thiomargarita. However, the outer coatings illustrated by Xiao ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05754
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  • 7
    Electronic Resource
    Electronic Resource
    Jazz and Its Impact on European Classical Music (2005)
    Oxford, UK : Blackwell Publishing
    The @journal of popular culture 38 (2005), S. 0 
    Details
    ISSN: 1540-5931
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Ethnic Sciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0022-3840.2005.00138.x
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  • 8
    Electronic Resource
    Electronic Resource
    Development of a Robust Photogrammetric Metrology System for Monitoring the Healing of Bedsores (2005)
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 20 (2005), S. 0 
    Details
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: A three-camera close range photogrammetric system for robust and precise measurement of bedsores has been designed and constructed. MEDPHOS (MEDical PHOtogrammetric System) consists of three synchronised cameras with convergent optical axes. A light projector is fixed in the centre of the rig that holds the cameras. A special dot pattern is projected onto the surface to be measured, to compensate for the lack of natural texture on the wound surface. The proposed algorithm consists of the following steps: the cameras and projector are calibrated so that all interior and exterior parameters are known; tailored image segmentation procedures are developed and applied for the detection of the projected pattern dots from the uneven background of the images using morphologic operators; and watershed transformation is used to tackle the problem of overlapping pattern dots. To reduce the effects of non-uniform illumination and specular reflection of light due to humidity (often the case with wounds), a homomorphic transformation is developed and applied to the images. After segmentation of the images, a connected-component labelling procedure is used to establish the points for matching. The centroids of these components were precisely calculated. Intensity-based image matching has been tested without yielding satisfactory results due to the significant deviation from the Lambertian reflection assumption used for solving the correspondence problem. This problem is reliably solved by developing a new algorithm based on geometric constraints that allow feature-based matching and do not need approximate values of the location of the targets in the images. This robust three-focal constraint is found to be very effective for matching provided the necessary conditions for the system configuration are met. Auxiliary photometric constraints together with the calibrated projector (which is treated like an active camera) also serve as additional sources of information for reducing the number of remaining ambiguities and checking the consistency of the results. Almost all of the required biometric information can be obtained rapidly, robustly and easily using MEDPHOS. Experimental results showed the effectiveness of the proposed technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1477-9730.2005.00319.x
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  • 9
    Electronic Resource
    Electronic Resource
    The Effect of Anodal Stimulation on V-V Timing at Varying V-V Intervals (2005)
    350 Main Street , Malden , MA 02148-5018 , USA and 9600 Garsington Road , Oxford OX4 2DQ , UK . : Blackwell Science Inc
    Pacing and clinical electrophysiology 28 (2005), S. 0 
    Details
    ISSN: 1540-8159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We studied the effect of anodal capture at the ring electrode of the right ventricular (RV) lead on interventricular (V-V) timing during biventricular (BiV) pacing, in which left ventricular (LV) pacing was preceding RV pacing. The V-V interval was programmed from 80 to 4 ms (LV first) in the LV unipolar (LV tip—generator can) followed by the LV tip-RV ring pacing configuration. In the LV unipolar configuration, V-V programming leads to a continuous change in morphology of the QRS complex according to a change in collision of both activation fronts. When using the LV tip-RV ring configuration with anodal capture at the RV ring electrode no change in QRS morphology was recorded varying the V-V interval from 80 to 60 and 40 ms. However, at V-V intervals between 20 and 4 ms a change in morphology of the QRS complex was recorded, which was due to additional cathodal stimulation of the RV tip electrode during RV stimulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-8159.2005.00185.x
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    A pilot evaluation of pulse itraconazole vs. terbinafine for treatment of Candida toenail onychomycosis (2005)
    Oxford, UK : Blackwell Science Ltd
    International journal of dermatology 44 (2005), S. 0 
    Details
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-4632.2004.02117.x
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