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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 113 (2000), S. 7384-7397 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The NaK 1 3Δ state has been studied by the perturbation-facilitated optical–optical double resonance technique. Mixed singlet–triplet levels, A(2)1Σ+(vA,J)∼b(1)3Π(vb,J), were pumped from thermally populated rovibrational levels of the ground state, X(1)1Σ+(vX,J±1), using a single-mode cw dye laser. A single-mode cw Ti:Sapphire laser was then used to further excite the NaK molecules to various 1 3Δ(vΔ,NΔ,JΔ) rovibrational levels which were detected by observing collision-induced 3Λ→a(1)3Σ+ fluorescence in the green part of the spectrum. The measured energies of the 1 3Δ(vΔ,NΔ) levels were fit to a Dunham expansion, and the Dunham coefficients were used to construct the RKR potential curve. Absolute numbering of the 1 3Δ state vibrational levels was established by a comparison of experimental and calculated 1 3Δ(vΔ,NΔ,JΔ)←b(1)3Π(vb,Jb) absorption line strengths. A deperturbation program was used to determine the vibration-dependent 1 3Δ state spin–orbit interaction parameter. Hyperfine structure of the 1 3Δ state was studied, and the Fermi-contact interaction term for this state was determined to be ∼0.0111 cm−1. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 211 (1975), S. 43-49 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird eine neue Methode zur ERA-Stimulation mit freiprogram-mierbarer Frequenz- und Intensitätsfolge beschrieben. Zur Realisierung dieser Methode wurde ein freiprogrammierbarer ERA-Stimulator, FPERAS/74, entwickelt. Die Erwartung, daß diese Art der Stimulation mit ständiger Veränderung der Frequenz und Intensität der Tonreize die Entwicklung einer Habituation in Betrag und Geschwindigkeit wirksam verringert, wird experimentell bestätigt. In unserer Untersuchung (K- und P-Experiment) wird die Effektivität dieser Methodik sowohl hinsichtlich der Zeitersparnis beim Ermitteln der AEP als auch ihre Qualität gegenüber konventionell ermittelter AEP geklärt. Dabei ist eine dreifache Verkürzung der Untersuchungsdauer bei gleichzeitiger Verbesserung der Qualität und Reproduzierbarkeit der AEP festzustellen.
    Notes: Summary A new method for ERA-stimulation with free-programable sequence of intensity and frequency will described. We developed to realize this method a Free-Programable ERA-Stimulator, FPERAS/74. The expectation has been confirmed that this way of stimulation which includes a regular change of frequency and intensity of the auditory stimuli decreases effective the development of habituation in its amount and velocity. In our experiment (K- and P-experiment) it will be clarified the efficiency of this method both with regard to the time-saving during the recordings of the AEP and its quality compared with the conventionally determined AEP. It can be stated a triple shortening of the examination time with a simultaneous improvement of the quality and the reproductibility of the AEP.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 224 (1979), S. 85-88 
    ISSN: 1434-4726
    Keywords: Aquaeductus cochleae ; Innenohr ; Liquor cerebrospinalis ; Perilymphe ; radioaktiver Tracer ; Aqueduct of cochlea ; Inner ear ; Cerebrospinal fluid ; Perilymphatic fluid ; Radioactive tracer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Radioactively labelled chromium was instilled in the cerebrospinal fluid of guinea pigs. After different intervals, the radioactivity of inner ear fluids was measured and compared with those of other regions. The results lead to kinetic information about the permeability of 51Cr between cerebrospinal and inner ear fluids.
    Notes: Zusammenfassung Radioaktiv markiertes Chrom wurde in den Liquor cerebrospinalis von Meerschweinchen eingebracht. Nach verschiedenen Zeitintervallen wurde die Radioaktivität der Innenohrflüssigkeiten gemessen und mit der anderer Regionen verglichen. Die Ergebnisse führen zu kinetischen Informationen über die Permeabilität von 51Cr zwischen Liquor und Innenohrflüssigkeiten.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Der Anaesthesist 46 (1997), S. 34-37 
    ISSN: 1432-055X
    Keywords: Schlüsselwörter Hypoglossusparese ; Intubationsnarkose ; Septumkorrektur ; Key words Hypoglossal nerve palsy ; Intubation anaesthesia ; Nasal septum surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Background: We report a case of irreversible unilateral hypoglossal nerve palsy in connection with nasal septum surgery in intubation anaesthesia. On account of the spatial distance, there is no danger of injuring the hypoglossal nerve during nasal surgery. However, in the otorhinolaryngological and anaesthesiological literature, some cases of hypoglossal palsy following endotracheal intubation, use of the laryngeal mask airway, bronchoscopy and laryngoscopy are reported. Case report: One day after uneventful nasal septoplasty in intubation anaesthesia in a 45-year-old male patient, an unilateral hypoglossal nerve palsy and a hematoma in the area of the ipsilateral lingual tonsil were observed. A detailed diagnostic work-up failed to provide additional insights into the cause of the nerve injury. Despite pharmacological treatment, the palsy was irreversible and the patient sued for recovery of damages. Discussion and conclusions: According to the available publications, it must be assumed that in the process of intubation pressure from the MacIntosh blade was the cause of the hypoglossal palsy. This complication is extremely rare, so that routine preoperative briefing of the patient does not appear necessary.
    Notes: Zusammenfassung Hintergrund: Nach einer operativen Korrektur der Nasenscheidewand in Intubationsnarkose trat bei einem Patienten eine irreversible einseitige periphere Hypoglossusparese auf. Eine direkte Schädigung des N. hypoglossus im Rahmen einer Septumkorrektur ist aber aus anatomischen Gründen unmöglich. In der Literatur werden dagegen einzelne Fälle beschrieben, bei denen es nach Intubation und Endoskopien zu meist reversiblen Hypoglossusparesen kam. Kasuistik: Bei dem 45jährigen Patienten wurden nach unproblematischer Septumplastik in Intubationsnarkose eine einseitige Hypoglossusparese und ein Hämatom am Zungengrund beobachtet. Eine weiterführende Diagnostik ergab keine zusätzlichen Aspekte zur Genese der Nervenläsion. Die Parese blieb auch nach medikamentöser Behandlung irreversibel, so daß der Patient Regreßansprüche stellte. Diskussion und Schlußfolgerungen: Nach Durchsicht der wenigen bisherigen Veröffentlichungen zu diesem Thema muß als Ursache der Hypoglossusparese der Druck des MacIntosh-Spatels auf den seitlichen Zungengrund zum Zeitpunkt der Intubation angesehen werden. Diese Komplikation ist so extrem selten und atypisch, daß eine Aufklärungspflicht nicht abzuleiten ist.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 93 (1933), S. 307-310 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 99 (1934), S. 77-78 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 118 (1939), S. 66-66 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 95 (1941), S. 126-130 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 208 (1974), S. 193-202 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Differenz zwischen den akustisch evozierten Potentialen (AEP) am Menschen bei periodischem und zufallsverteiltem Reizmuster wurde bei 9 verschiedenen Reizintervallen von 0,8; 1,0; 1,5; 2,0; 2,5; 3,0; 3,5; 4,0; 5,0 sec (periodische Reizung) und bei den zugeordneten Zeitintervallen von jeweils ca. 80; 100; 150; 200; 250; 300; 350; 400; 500 sec (zufallsverteilte Reizung) für die Applikation von 100 Reizen untersucht. Dabei wurden die Differenzen in den Amplituden und Latenzzeiten der AEP bei drei verschiedenen Reizintensitäten von 25, 50 und 70 dB SPL festgestellt. Weiterhin erfolgte die Untersuchung der Amplitudendifferenzen bei einer Reizintensität von 35 dB SPL und vier verschiedenen Reizfrequenzen von 500, 1000, 2000 und 4000 Hz. Die Verwendung einer zufallsverteilten Reizung bringt eine Verbesserung der Amplituden der AEP von maximal 12% bei P1N1 und maximal 4% bei N1P2. Die Differenz der Mittelwerte der Amplituden und Latenzzeiten, die durch Anwendung der beiden verschiedenen Stimulationsmuster erhalten wurden, sind jedoch bei einer Irrtumswahrscheinlichkeit von 1% nicht signifikant. Die geringe Verbesserung der Amplituden der AEP durch die Verwendung einer zufallsverteilten Reizfolge rechtfertigt nicht den für einen stochastischen Reizgeber erforderlichen Aufwand, der den ohnehin großen Aufwand bei ERA-Anlagen noch erhöht.
    Notes: Summary The difference between acoustically evoked potentials (AEP) in man due to either periodic signals or due to broad-band signals were investigated. Nine different stimulus intervals, i.e., 0.8, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 5.0 sec, were employed for the periodic signals and eight time intervals, i.e., 80, 100, 150, 250, 300, 350, 400, and 500 sec, for the borad-band signals. One run consisted of 100 signals each. Amplitudes and latencies of the AEP were determined for three different intensity levels, i.e., 25, 50, and 70 dB SPL. Amplitudes were also assessed for the signal level of 35 dB SPL and for four different frequencies, 500, 2000, and 4000 Hz. For broad-band signals, the p-to-p amplitudes of the P1-N1 of the AEP was increased maximally by 12% and that of the N1-P2 p-to-p amplitude by 4%. The difference between the averaged amplitudes and latencies for the two different types of signals were not significant: P=1%. The small increase in amplitude of the AEP caused by the broad-band signal does not justify the expense for the noise generator, an additional expense over and above the large outlay for the ERA equipment.
    Type of Medium: Electronic Resource
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