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  • 1
    Electronic Resource
    Electronic Resource
    Recurrent Trigeminal Neuralgia After Microvascular Decompression Using an Interposing Technique. Teflon Felt Adhesion and the Sling Retraction Technique (2000)
    Springer
    Acta neurochirurgica 142 (2000), S. 557-561 
    Details
    ISSN: 0942-0940
    Keywords: Keywords: Trigeminal neuralgia; microvascular decompression; recurrence; Teflon felt; re-operation; sling retraction technique.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary ¶ The causes of recurrence after microvascular decompression for trigeminal neuralgia and the results of re-operations were studied in 6 cases. Eighty-two patients with trigeminal neuralgia were operated on through microvascular decompression using the technique of interposing Teflon felt between the offending artery and the pons and/or nerve. Recurrence occurred in 14 cases (17.1%) and re-operations were carried out in 6 severe cases at which time the sling retraction technique was used. At the second operation, the adhesion of the interposed Teflon felt was found at the trigeminal nerve in all cases and the adhesions were the main cause of recurrence. The Teflon felt was dissected from the nerve, and the sling of the Teflon felt adhering to the offending arteries was fixed to the tentorium in order to transpose the arteries and avoid re-adhesion. All cases resulted in an excellent relief from pain and experienced no pain for at least 2 years. The intra-operative findings of our cases indicated that the microvascular decompression using the interposing technique may result in adhesion of the prosthesis to the nerve and thus eventually lead to recurrence. Our surgical experience also suggests that such recurrent cases should be re-operated on using the sling retraction technique instead of the interposing technique, even for the first microvascular decompression procedure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050469
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  • 2
    Electronic Resource
    Electronic Resource
    Assessment of the quality of ladies' garment fabrics - a preliminary report (2000)
    Bingley : Emerald
    International journal of clothing science & technology 12 (2000), S. 205-213 
    Details
    ISSN: 0955-6222
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In order to establish an objective method of evaluating ladies' garment fabrics by connecting the mechanical properties of ladies' garment fabrics to subjective evaluation, subjective assessments were examined by judges who work at textile mills or in the textile trade. We examined a method of deriving objective equations, a total hand value (THV) equation and a total appearance value (TAV) equation. The THV equation was derived directly from the mechanical properties of the fabrics and the TAV equation was derived from three mechanical parameters which are related to the beauty of garment appearance. In the case of the THV objective equation, the accuracy of regression was high within the same groups of judges; however, in the case of the TAV objective equation, accuracy was slightly low. Because there were few subjects and that caused deviation, the accuracy of prediction was slightly low; however, the objective evaluation was adequate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09556220010373205
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  • 3
    Electronic Resource
    Electronic Resource
    Neutral beams for the International Thermonuclear Experimental Reactor : The 8th international conference on ion sources (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 744-746 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Receiving higher emphasis on the neutral beam (NB) off-axis current drive, the NB system is being highlighted for the steady state operation of the International Thermonuclear Experimental Reactor (ITER). To fulfill the physics requirement of heating and current drive, the NB system delivers ∼50 MW of D0 beams at 1 MeV into the ITER plasmas. The NB injector was designed so as to minimize the axial length, to avoid cost impact on the building. It was estimated by nuclear analyses that the insulation gas around the beam source would cause radiation induced conductivity, which would result in a power dissipation of 〉100 kW in the gas itself. As a result the present design utilizes vacuum insulation around the beam source. Since the vacuum pressure inside/outside the beam source ranges 10−1–10−2 Pa, both gas (glow) and vacuum arc discharges are taken into account in the design. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150281
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  • 4
    Electronic Resource
    Electronic Resource
    correction: Ultrahard polycrystalline diamond from graphite (2003)
    [s.l.] : Nature Publishing Group
    Nature 421 (2003), S. 806-806 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nature 421, 599–600, 2002 In the legend to Fig. 1a of this communication, the diameter of the transparent polycrystalline diamond shown is 1 mm, and not 0.1 mm as published; the scale divisions represent 0.1 mm. Also, the first full ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/421806b
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  • 5
    Electronic Resource
    Electronic Resource
    Vibration analysis of maxillary removable partial denture frameworks (2002)
    Oxford UK : Blackwell Science Ltd
    Journal of oral rehabilitation 29 (2002), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The purpose of this study was to investigate the vibratory characteristics of three designs of the Class I Kennedy maxillary removable partial denture frameworks as the basic study. Their major connectors comprised a U-shaped palatal connector (UPC), single palatal bar (SPB), and anterior–posterior palatal bars (APB). Frequency response functions were measured when the framework was impacted. The modal shape was observed and the decay rate was calculated using modal analysis software. The results showed that the vibratory properties of each framework differed from each other. Within the range of frequencies from 10 to 2000 Hz, the UPC type had seven natural frequencies, while the SPB and the APB types had six. The UPC type had a greater number of natural modes accompanied by elastic deformation, including fluttering and twisting, than the other type, and the UPC type was considered to be unfavourable. The decay rate of the APB type was significantly higher than those of the UPC and the SPB types (P 〈 0·01).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2002.00841.x
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  • 6
    Electronic Resource
    Electronic Resource
    Development of a large volume negative-ion source for ITER neutral beam injector : Papers from the Ninth International Conference on Ion Sources (2002)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 73 (2002), S. 1090-1092 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Development of the negative-ion sources has been conducted to realize a high power neutral beam injector for International Thermonuclear Experimental Reactor (ITER). A high negative-ion current density of 31 mA/cm2 (H−) at a very low pressure of 0.1 Pa has been produced in a cesium seeded multicusp plasma generator which has the same concept of the ITER source. For a vacuum insulated accelerator, a voltage holding experiment of long distance vacuum gaps up to ∼1.8 m has been performed. It was clarified that the transition region of product pressure distance (pd) from the vacuum breakdown to the gas discharge is about 0.2 Pa m which is high enough from the operating region of the ITER source. A prototype vacuum insulated accelerator was fabricated based on the experiment and tested. A high-energy H− beam acceleration up to 970 keV, 37 mA, and 1 s has been successfully demonstrated. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1431422
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  • 7
    Electronic Resource
    Electronic Resource
    Proliferative activities of epithelial and connective tissue cells in the rat periodontal regeneration using argyrophilic nucleolar organizer regions staining (2004)
    Oxford, UK : Munksgaard International Publishers
    Journal of periodontal research 39 (2004), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background and objective:  It is still an open question why long junctional epithelium can proliferate and occupies the root surface following periodontal surgery or experimentally produced periodontitis, and why the epithelium repopulated once on the root surface is replaced by the connective tissue. The aim of this study is to investigate the proliferative activity of the newly formed regenerative connective tissue and long junctional epithelium during wound healing by staining argyrophilic proteins of the nucleolar organizer regions (AgNORs).Methods:  Regenerative connective tissue and long junctional epithelium were experimentally created by insertion of a rubber piece between maxillary molars of rats for 1 week. After removal of the rubber, AgNORs parameters including nuclear area (NA), AgNORs area (AA), AgNORs percentage nuclear area (APNA), AgNORs number (AN) and nuclear number (NN) in regenerative connective tissue and long junctional epithelium were measured and analyzed statistically.Results:  APNA in long junctional epithelium after 1 and 4 weeks was over two times greater than that in the regenerative connective tissue. AA in long junctional epithelium was significantly higher than in regenerative connective tissue at 1 and at 4 weeks post-treatment. AN was higher in the central portion than at the root surface except at 20 weeks. APNA and AA decreased remarkably in long junctional epithelium at 12 weeks post-treatment (approximately half at 4 weeks), whereas in regenerative connective tissue, they did not change distinctly.Conclusions:  These results imply that long junctional epithelium cannot supply sufficient epithelial cells because of their significantly low rates of proliferation, consequently long junctional epithelium becomes shorter after 12 weeks, whereas the proliferative activity of regenerative connective tissue maintains the same level of proliferation, and ultimately long junctional epithelium is replaced by regenerative connective tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.2004.00721.x
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  • 8
    Electronic Resource
    Electronic Resource
    Various population fluctuation patterns of light-attracted beetles in a tropical lowland dipterocarp forest in Sarawak (2000)
    Springer
    Population ecology 42 (2000), S. 97-104 
    Details
    ISSN: 1437-5613
    Keywords: Key words General flowering ; Light-trap ; Population dynamics ; Scarabaeidae ; Meloidae ; Borneo
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The population fluctuation pattern of light-attracted beetles was studied from August 1992 to September 1998 (for 73 months) using ultraviolet light-traps set at three vertical levels in a tropical lowland dipterocarp forest in Sarawak, Malaysia. During our study, a general flowering occurred from April to July in 1996, and flowering on a small scale in 1997 and 1998. We analyzed the data for eight scarabaeid and six meloid species, some of which were anthophilous species. Various fluctuation patterns were observed among the beetle species in aspects of both seasonality and correlation with the supraannual phenological pattern. Three large chafer species (Scarabaeidae, Melolonthini) showed a clear seasonal fluctuation pattern with a peak once from March to May every year, the peak monthly catch greatly fluctuating annually. Other scarabaeid beetles did not show such a clear seasonal population pattern and hardly fluctuated annually. Populations of an anthophilous scarabaeid species, Parastasia bimaculata, a specific pollinator of Homalomena propinqua (Araceae), hardly fluctuated, probably because of its response to the constant flowering of its floral hosts. Monthly catches of an anthophilous scarabaeid, Anomala sp., and meloid beetles showed clear supraannual patterns in response to the general flowering and were significantly correlated with the flowering intensity with or without a lag of a month. The fluctuation pattern of meloids suggests a supraannual population fluctuation pattern of their hosts, i.e., megachilid/anthophorid bees.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101440050014
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  • 9
    Electronic Resource
    Electronic Resource
    Bone Mineral Density and Bone Turnover in Patients with Knee Osteoarthritis Compared with Generalized Osteoarthritis (2000)
    Springer
    Calcified tissue international 66 (2000), S. 325-329 
    Details
    ISSN: 1432-0827
    Keywords: Key words: Pyridinoline — CTx — Osteocalcin — Radiographic grading.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract. The aim of this study was to investigate bone mineral density (BMD) and bone turnover in patients with primary knee osteoarthritis (KOA) and to compare them with generalized OA (GOA) and nonGOA patients. A total of 88 postmenopausal primary KOA patients were studied. OA was graded by using knee radiographs. BMD of the lumber spine, femur, and radius, and biochemical markers of bone turnover, pyridinoline (Pyr), deoxypyridinoline (Dpyr), CTx, and osteocalcin were compared among each grade. BMD was also compared with 88 normal controls who were age and weight-matched. In 88 KOA patients, 56 were divided into 28 GOA and 28 non-GOA groups by grading hand radiographs. BMD and biochemical markers were compared between GOA and non-GOA. KOA patients had higher BMD at several skeletal sites compared with age- and weight-matched normals. A significant difference of BMD between each grade was observed between grades 0–1 and 3 (0.774 ± 0.143 versus 0.940 ± 0.185 g/cm2, P 〈 0.001), grades 2 and 3 (0.781 ± 0.125 versus 0.940 ± 0.185 g/cm2, P 〈 0.01) in the spine, and between grades 0–1 and 3 (0.505 ± 0.100 versus 0.564 ± 0.127 g/cm2, P 〈 0.05) in the trochanter. A significant difference of biochemical bone markers was observed between grades 0–1 and 3 (P 〈 0.05) and between grades 2 and 3 (P 〈 0.05) in Pyr and grades 0–1 and 3 (P 〈 0.05) and between grades 1 and 4 (P 〈 0.05) in Dpyr, but not in osteocalcin and CTx. GOA patients had higher BMD of the spine (0.902 ± 0.175 versus 0.747 ± 0.138 g/cm2, P 〈 0.01), trochanter (0.535 ± 0.107 versus 0.480 ± 0.107 g/cm2, P 〈 0.05), and one-third of the radius (0.526 ± 0.068 versus 0.472 ± 0.089 g/cm2, P 〈 0.05) and had significantly higher biochemical markers in Pyr and Dpyr than non-GOA patients. It is concluded that KOA patients had higher BMD at several skeletal sites. Biochemical bone markers were influenced by some degree of cartilage damage in OA patients. This tendency was stronger in GOA patients than in non-GOA patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002230010068
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  • 10
    Electronic Resource
    Electronic Resource
    Damage Properties of PEEK Films Irradiated by Atomic Oxygen (2004)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 261-263 (Apr. 2004), p. 1617-1622 
    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: Atomic Oxygen (AO) is a main constituent of the atmosphere on low earth orbit where theInternational Space Station (ISS) goes around, and is also known as the matter which deterioratemany kinds of polymers. However, the strength properties of polymers suffered from AO have notbeen fully clarified. To investigate this problem, we irradiated AO to Poly-Ether-Ether-Keton(PEEK) films under three kinds of tensile stresses. Based on the analysis of irradiated samples, theeffects of AO fluence (total amount of AO per unit area) and tensile stresses on damage propertieswere discussed with regard to reaction efficiency Re, surface morph, and tensile strength properties.As a result, the following were obtained: (1) Test piece surfaces exhibited considerable damagecovered by conical pits of 1μm sizes with a few μm depths. (2) Test piece thickness of irradiatedarea decreased almost proportionally to AO fluence. (3) Re and thickness reduction wasaccelerated by tensile stress. (4) Strength properties after AO irradiation were almost same asthose of a pristine sample considering the decrease of specimen thickness
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/47/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.261-263.1617.pdf
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