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  • 2000-2004  (57)
  • Comparative Studies. Non-European Languages/Literatures  (57)
  • 1
    Online Resource
    Online Resource
    Der Einfluss der grossen Verbinder von zahnärztlichen Teilprothesen auf die Lautbildung
    S. Karger AG ; 2004
    In:  Folia Phoniatrica et Logopaedica Vol. 56, No. 3 ( 2004), p. 144-156
    Details
    In: Folia Phoniatrica et Logopaedica, S. Karger AG, Vol. 56, No. 3 ( 2004), p. 144-156
    Abstract: In der zahnmedizinischen Teilprothetik zur Versorgung des Lückengebisses wird die Lautbildung durch viele Variablen beeinflusst, deren Auswirkungen im Einzelnen noch weitgehend unbekannt sind. Ziel dieser Untersuchung war es, den Einfluss von verschiedenen Konstruktionselementen von Ober- und Unterkieferteilprothesen auf die Bildung der Plosiv-, Nasal-, Lateral- und Frikativlaute zu untersuchen. Für jeden der 24 Probanden wurden 5 verschiedene Testprothesen hergestellt. Jeder Proband trug seine Testprothesen jeweils 6 h. Es erfolgten 6 digitale Sprachaufnahmen je Testprothese zu verschiedenen Zeitpunkten des Untersuchungszeitraumes von 24 h. Über eine rechnergestützte Frequenzanalyse nach dem Prinzip der schnellen Fouriertransformation (FFT) war es möglich, Unterschiede in der Lautbildung der untersuchten Konsonanten als Folge der jeweils getragenen Testprothese objektiv und reproduzierbar nachzuweisen. Ausserdem wurden während der Untersuchung Daten zum Tragekomfort und zur subjektiven Lautbildung der Testprothesen erhoben. Die Studie belegt unter anderem einen unerwartet grossen Einfluss des Sublingualbügels auf die Lautbildung. Der Sprecher versucht, gewohnte Artikulationsmuster trotz eingesetzter Testprothese zunächst aktiv beizubehalten. Eine Sprechprobe direkt nach der Eingliederung einer neu angefertigten zahnmedizinischen Teilprothese ist daher für die endgültige Beurteilung der Lautbildung vorsichtig zu interpretieren. Aufgrund der Ergebnisse können Empfehlungen für die zahnärztliche Therapie gegeben werden.
    Type of Medium: Online Resource
    ISSN: 1021-7762 , 1421-9972
    URL: Article
    DOI: 10.1159/000076936
    RVK:
    EQ 1000
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2004
    detail.hit.zdb_id: 1482295-7
    SSG: 7,11
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  • 2
    Online Resource
    Online Resource
    The Key Witnesses: The Younger Slovene Prose at the Turn of the Millennia
    JSTOR ; 2004
    In:  World Literature Today Vol. 78, No. 3/4 ( 2004), p. 140-
    Details
    In: World Literature Today, JSTOR, Vol. 78, No. 3/4 ( 2004), p. 140-
    Type of Medium: Online Resource
    ISSN: 0196-3570
    URL: Article
    DOI: 10.2307/40158622
    RVK:
    EA 1000
    Language: English
    Publisher: JSTOR
    Publication Date: 2004
    detail.hit.zdb_id: 2067813-7
    detail.hit.zdb_id: 131663-1
    SSG: 7,12
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  • 3
    Online Resource
    Online Resource
    Ten Slovenian Poets of the Nineties
    JSTOR ; 2003
    In:  World Literature Today Vol. 77, No. 2 ( 2003), p. 142-
    Details
    In: World Literature Today, JSTOR, Vol. 77, No. 2 ( 2003), p. 142-
    Type of Medium: Online Resource
    ISSN: 0196-3570
    URL: Article
    DOI: 10.2307/40158134
    RVK:
    EA 1000
    Language: English
    Publisher: JSTOR
    Publication Date: 2003
    detail.hit.zdb_id: 2067813-7
    detail.hit.zdb_id: 131663-1
    SSG: 7,12
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  • 4
    Online Resource
    Online Resource
    Acts of Silence, Acts of Speech: How to Do Things with Othello and Desdemona
    University of Chicago Press ; 2004
    In:  Renaissance Drama Vol. 33 ( 2004-01), p. 3-35
    Details
    In: Renaissance Drama, University of Chicago Press, Vol. 33 ( 2004-01), p. 3-35
    Type of Medium: Online Resource
    ISSN: 0486-3739 , 2164-3415
    URL: Article
    DOI: 10.1086/rd.33.41917385
    RVK:
    EC 5141
    RVK:
    HC 6077.2
    RVK:
    HC 1000
    Language: English
    Publisher: University of Chicago Press
    Publication Date: 2004
    detail.hit.zdb_id: 2411378-5
    SSG: 7,25
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  • 5
    Online Resource
    Online Resource
    Introduction
    Duke University Press ; 2000
    In:  Twentieth-Century Literature Vol. 46, No. 4 ( 2000-12-01), p. 387-395
    Details
    In: Twentieth-Century Literature, Duke University Press, Vol. 46, No. 4 ( 2000-12-01), p. 387-395
    Type of Medium: Online Resource
    ISSN: 0041-462X , 2325-8101
    URL: Article
    DOI: 10.1215/0041462X-2000-1006
    RVK:
    EA 1000
    Language: English
    Publisher: Duke University Press
    Publication Date: 2000
    detail.hit.zdb_id: 2067117-9
    SSG: 7,25
    SSG: 7,12
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  • 6
    Online Resource
    Online Resource
    Analysis of the axial transmission technique for the assessment of skeletal status
    Acoustical Society of America (ASA) ; 2000
    In:  The Journal of the Acoustical Society of America Vol. 108, No. 6 ( 2000-12-01), p. 3058-3065
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 108, No. 6 ( 2000-12-01), p. 3058-3065
    Abstract: Ultrasonic wave propagation in human cortical bone has been investigated in vitro using the so-called axial transmission technique. This technique, which relies on velocity measurement of the first arriving signal, has been used in earlier investigations to study bone status during fracture healing or osteoporosis. Two quasi-point-source elements, one transmitter and one receiver (central frequency 0.5 MHz), were used to generate a wide ultrasonic beam, part of which strikes the sample surface at the longitudinal critical angle, and to receive the signals reflected from the sample surface. The analysis of the field reflected from a fluid–solid interface for an incident spherical wave predicts the existence of a lateral wave propagating along the sample surface at a velocity close to the longitudinal velocity, in addition to the ordinary reflected wave and vibration modes. The transducer–sample and the transmitter–receiver distances were chosen such that the lateral wave is the first arriving signal. Validation of the measuring technique was performed on test materials and was followed by experiments on human cortical bones. Experimental results (arrival time and velocity) strongly suggest that the first detected signal corresponds to the lateral wave predicted by theory.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.1290245
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2000
    detail.hit.zdb_id: 1461063-2
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  • 7
    Online Resource
    Online Resource
    Hearing protection: Surpassing the limits to attenuation imposed by the bone-conduction pathways
    Acoustical Society of America (ASA) ; 2003
    In:  The Journal of the Acoustical Society of America Vol. 114, No. 4 ( 2003-10-01), p. 1955-1967
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 114, No. 4 ( 2003-10-01), p. 1955-1967
    Abstract: With louder and louder weapon systems being developed and military personnel being exposed to steady noise levels approaching and sometimes exceeding 150 dB, a growing interest in greater amounts of hearing protection is evident. When the need for communications is included in the equation, the situation is even more extreme. New initiatives are underway to design improved hearing protection, including active noise reduction (ANR) earplugs and perhaps even active cancellation of head-borne vibration. With that in mind it may be useful to explore the limits to attenuation, and whether they can be approached with existing technology. Data on the noise reduction achievable with high-attenuation foam earplugs, as a function of insertion depth, will be reported. Previous studies will be reviewed that provide indications of the bone-conduction (BC) limits to attenuation that, in terms of mean values, range from 40 to 60 dB across the frequencies from 125 Hz to 8 kHz. Additionally, new research on the effects of a flight helmet on the BC limits, as well as the potential attenuation from deeply inserted passive foam earplugs, worn with passive earmuffs, or with active-noise reduction (ANR) earmuffs, will be examined. The data demonstrate that gains in attenuation exceeding 10 dB above the head-not-covered limits can be achieved if the head is effectively shielded from acoustical stimulation.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.1605415
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2003
    detail.hit.zdb_id: 1461063-2
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  • 8
    Online Resource
    Online Resource
    Geoacoustic properties of sediments determined from measurements of head waves
    Acoustical Society of America (ASA) ; 2000
    In:  The Journal of the Acoustical Society of America Vol. 107, No. 5_Supplement ( 2000-05-01), p. 2773-2773
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 107, No. 5_Supplement ( 2000-05-01), p. 2773-2773
    Abstract: As part of the SAX 99 experiments, head wave signals have been analyzed to determine geoacoustic properties for the sandy sediment at the shallow water site near Destin, FL. A small-aperture (2.33 m), vertical array of four hydrophones was deployed at mid-water depth over the sea floor, where the water column is 20 m deep. Transient signals were generated by an airgun, at a fixed location, resting on the ocean bottom. At a range of approximately 1 km from the source, the array was allowed to drift to vary its position; the location was measured with DGPS equipment. Two estimates of the compressional wave speed in the sandy sediment were obtained from the incoming signals: a spatially averaged value over the track between the source and receiver, determined at a single sensor from the difference in arrival times between the head wave and the water-borne wave; and a localized value, computed from the critical angle derived from the vertical directionality of the received head wave signals. A comparison of the independent local and spatially averaged estimates provides a useful consistancy check, and establishes the spatial variation of the sediment more completely than by either purely averaged or local measurements alone.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.428903
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2000
    detail.hit.zdb_id: 1461063-2
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  • 9
    Online Resource
    Online Resource
    Frequency dependence of ultrasonic backscattering in cancellous bone: Autocorrelation model and experimental results
    Acoustical Society of America (ASA) ; 2000
    In:  The Journal of the Acoustical Society of America Vol. 108, No. 5 ( 2000-11-01), p. 2403-2411
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 108, No. 5 ( 2000-11-01), p. 2403-2411
    Abstract: The goal of this study is to model the frequency dependence of the ultrasonic backscatter coefficient in cancellous bone. A twofold theoretical approach has been adopted: the analytical theoretical model of Faran for spherical and cylindrical elastic scatterers, and the scattering model for weakly scattering medium in which the backscatter coefficient is related to the autocorrelation function of the propagating medium. The ultrasonic backscatter coefficient was measured in 19 bone specimens (human calcaneae) in the frequency range of 0.4–1.2 MHz. The autocorrelation function was computed from the three-dimensional (3D) microarchitecture measured using synchrotron radiation microtomography. Good agreement was found between the frequency dependence of the experimental (f3.38±0.31) and autocorrelation modeled (f3.48±0.26) backscatter coefficients. The results based on Faran theory (cylindrical Faran model: f2.89±0.06 and spherical Faran model: f3.91±0.04) show qualitative agreement with experimental data. The good prediction obtained by modeling the backscatter coefficient using the autocorrelation function of the medium opens interesting prospects for the investigation of the influence of bone microarchitecture on ultrasonic scattering.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.1316094
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2000
    detail.hit.zdb_id: 1461063-2
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  • 10
    Online Resource
    Online Resource
    In vitro measurement of the frequency-dependent attenuation in cancellous bone between 0.2 and 2 MHz
    Acoustical Society of America (ASA) ; 2000
    In:  The Journal of the Acoustical Society of America Vol. 108, No. 3 ( 2000-09-01), p. 1281-1289
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 108, No. 3 ( 2000-09-01), p. 1281-1289
    Abstract: Our goal was to evaluate the frequency dependence of the ultrasonic attenuation coefficient in cancellous bone. Estimates were obtained in immersion, using a substitution method in the through-transmit mode, by scanning 14 human bone specimens (calcaneus). Measurements were performed with three pairs of focused transducers with a center frequency of 0.5, 1.0, and 2.25 MHz, respectively in order to cover an extended frequency bandwidth (0.2–1.7 MHz). When the experimental attenuation coefficient values were modeled with a nonlinear power fit α(f )=α0+α1fn, the attenuation coefficient was found to increase as f1.09±0.3 over the measurement bandwidth. However, a substantial variation of the exponent n (0.4–2.2) within specimens and also between specimens was observed. The acoustical parameters were compared to bone mineral density. A highly significant relationship was noted between α1 and BMD (r2=0.75, p & lt;10−4). No correlation was found between n and BMD. Several attenuation mechanisms are discussed as well as the potential impact these results may have in in vivo quantitative measurements.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.1288934
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2000
    detail.hit.zdb_id: 1461063-2
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