Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 6204-6208 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Changes in the impedance, ≈600%/Oe, at axial fields less than 1 Oe have been observed in the presence of a 90 kHz, few mA current through a soft, nearly zero magnetostrictive wire. In this 125 μm diameter CoFeSiB amorphous wire we observe a total change of 160% at the maxima of the impedance in dc fields less than 2 Oe. A systematic study of the role of induced anisotropy in the axial, circumferential, and helical directions on the magneto-impedance shows that the largest effect is seen in the wire annealed to obtain circumferential easy axis using a 15 mA ac current passing through it. Both the axial hysteresis loops and the observed I-V characteristics reflect the induced anisotropies. The observed dependence of the inductance change on the type of the anisotropy induced in these wires can be modeled in terms of an interplay between the induced anisotropy, reversing ac field, and the axial dc field.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 3091-3093 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The magnetic properties of 200 Å epitaxial Fe (001)/MgO (001) tiling are studied as a function of tile size and separation. For edge sizes above ∼3 μm, the individual tiles maintain the single domain behavior while below ∼3 μm the tiles break into domains due to demagnetizing effects. In addition, below an inter tile separation threshold of about 0.9 μm, a single tile magnetization switch provokes a reversal cascade in all the tiles; while, above this threshold, the individual tile's magnetization switches independently. In this last case, we have experimental access to the distribution of nucleation sites. Thus, we have found a clear signature of the magnetic interaction between patterned epitaxial micro tiles with in-plane magnetization. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 2039-2041 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The development of a versatile tool to quantify magnetic anisotropies in continuous and patterned magnetic thin films is reported. The technique involves measuring the magnetooptic response to a rotating magnetic field. Similarly to mechanical torque techniques, a single measurement obtains both the anisotropy constants and their symmetry axes distribution. The technique has been applied to analyze arrays of submicrometer stripe-shaped Fe (001) elements with different interelement separations (s). For s larger than 1 μm, the anisotropy associated with the stripes is independent on separation, with a value of the effective uniaxial anisotropy constant very consistent with theoretical estimations for these systems. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    facet.materialart.
    Unknown
    Berlin : Periodicals Archive Online (PAO)
    Orientalistische Literaturzeitung. 51 (1956) 197 
    ISSN: 0030-5383
    Topics: Linguistics and Literary Studies , Ethnic Sciences , History
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    facet.materialart.
    Unknown
    Berlin : Periodicals Archive Online (PAO)
    Orientalistische Literaturzeitung. 51 (1956) 197 
    ISSN: 0030-5383
    Topics: Linguistics and Literary Studies , Ethnic Sciences , History
    Notes: Besprechungen
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    International urogynecology journal 5 (1994), S. 141-145 
    ISSN: 1433-3023
    Keywords: Personality ; Stress incontinence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Seventy-three multiparous women with stress incontinence were evaluated before and 1 year after anti-incontinence procedures to assess the effects of successful surgical therapy on the personality of patients with genuine stress urinary incontinence. Urodynamic studies were used to assess the urinary incontinence; Taylor-Johnson temperament analysis was used to evaluate the personality characteristics of the subjects; and paired t-tests and t-tests were performed for statistical analysis. Nine of the 73 patients were excluded because of invalid answers on the questionnaire. Of the remaining 64, 57 (89%) were subjectively cured and 51 (80%) were objectively cured. The preoperative temperament evaluation revealed, in all the patients, traits of depressiveness and quietness which were significantly different from the normal range of the average population. Postoperatively, the authors found significantly (P〈0.05) reduced depressiveness and increased social involvement, demonstrativeness and self-discipline only in the women subjectively cured. A trend was noted in terms of psychosocial adaptation between the patients cured and the ones with persistent incontinence. However, due to the small number of failures (n=7) no statistical differences could be demonstrated. It was concluded that women with stress urinary incontinence have increased depressiveness and decreased psychosocial involvement compared to the average population. Successful anti-incontinence procedures significantly improve the psychosocial status of these individuals.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1432-0932
    Keywords: Rachis lombaire ; Arthrodèse lombaire ; Spondylolisthésis ; Echec de la chirurgie lombaire ; Biomécanique ; Lumbar spine ; Spinal fusion ; Spondylolisthesis ; Failed-back syndrome ; Biomechanics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Various methods of lumbosacral fusions for the treatment of degenerative spinal diseases are used clinically. Results vary greatly depending on indication, type of fusion, implants, and method of evaluation. In a retrospective clinical and radiological examination after an average follow-up time of 3.9 years this study reports on the outcome of lumbosacral distraction spondylodesis (LSDS) in a consecutive series of 147 patients being fused for the treatment of spondylolisthesis, failed-back syndrome, or lumbar instability. LSDS consists of a posterolateral fusion together with an autologous corticocancellous H-graft wedged under distraction between the spinous processes of L4 and S1. With 81.0% good and excellent results this noninstrumented fusion technique showed the best outcome in patients with spondylolisthesis, while in cases with a failed-back syndrome or lumbar instability only 62.3% excellent to satisfying outcomes were noted. The rate of pseudarthrosis was 13.6% in the whole patient group; no major complications such as nerve root damage, postoperative neurological deficits, or spinal stenosis were found.
    Notes: Résumé Diverses méthodes de fusion lombo-sacrée sont utilisées dans le traitement des affections dégénératives rachidiennes. Les résultats sont très variables et dépendent de l'indicatio, du type de fusion, des implants et de la méthode d'évaluation. Par une analyse rétrospective clinique et radiologique après un délai postopératoire moyen de 3,9 mois, cette étude rend compte du résultat de la “spondylodèse lombo-sacrée en distraction” (LSDS) dans une série consécutive de 147 patients traités par arthrodèse pour spondylolisthésis, échec de la chirurgie lombaire ou instabilité lombaire. La LSDS consite en une greffe postéro-latérale associée à un greffon autologue cortico-spongieux en H enfoncé sous distraction entre les épineuses de L4 et de S1. Avec 81,0% de bons et excellents résultats, cette technique d'arthrodèse sans ostéosynthèse a montré ses meilleurs résultats dans le traitement des spondylolisthésis, tandis que dans les cas d'échec de la chirurgie lombaire ou d'instabilité lombaire il n'a donné que 62,3% des résultats excellents ou satisfaisants. Le taux de pseudarthroses était de 13,6% pour tout le groupe et l'on n'a pas trouvé de complications majeures comme une atteinte radiculaire, un déficit neurologique post-opératoire ou une sténose lombaire.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Kardiologie 89 (2000), S. 747-753 
    ISSN: 1435-1285
    Keywords: Key words Renal artery disease – coronary artery disease –¶renal artery stenting –¶arteriosclerosis ; Schlüsselwörter¶Renovaskuläre Erkrankung –¶Ischämische Nephropathie –¶Koronare Herzerkrankung –¶Renale Stentimplantation –¶Arteriosklerose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An 609 Patienten mit Verdacht auf koronare Herzerkrankung (KHK) wurden die Verteilung und der Schweregrad einer begleitenden renovaskulären Erkrankung (RE) untersucht. 152 dieser Patienten (25%) waren von einer RE betroffen. Unter den 399 Patienten mit signifikanten Koronarstenosen (〉50%) fanden sich 143 mit renovaskulärer Beteiligung (35,8%). Geringgradige Veränderungen (20–40% Stenose) stellten sich hierbei in 12,5%, mittelgradige (40–60% Stenose) in 10,5% und höhergradige (〉60% Stenose) in 12,8% der Patienten dar. In allen drei Gruppen zeigte sich signifikant häufiger eine 3-Gefäßerkrankung (GE) als eine 1- oder 2-GE (p〈0,01). Der Effekt einer perkutanen Revaskularisation auf Blutdruck und exkretorischen Nierenfunktion wird für höhergradige Stenosen in der Literatur uneinheitlich bewertet. Bei den 51 Patienten mit Stenose 〉60% führte eine Stentimplantation zu einer signifikanten Reduktion der Blutdruckwerte von 163±30 auf 145±17 mmHg systolisch und von 93±18 auf 83±10 mmHg diastolisch (p=0,008), sowie zur Abnahme der antihypertensiven Medikation (3,2±0,9 auf 2,8±1,0; p=0,005). Die Serumkreatininkonzentration verringerte sich nicht signifikant von 1,46±0,70 auf 1,39±0,58 mg/dl. Die Verteilung der Schweregrade einer RE in einem großen kardiologischen Patientengut liegt jeweils bei ca. 1/3 für gering-, mittel- und höhergradige Nierenarterienstenosen und geht in jeder dieser Gruppen mit einer progredienten KHK einher. Dabei können höhergradige Nierenarterienstenosen durch eine elektive Stentimplantation sicher und blutdruckeffektiv revaskularisiert werden.
    Notes: Summary To explore the relationship between coronary artery disease and renal vascular disease, we performed renal arterial angiography in 609 patients undergoing coronary angiography for suspected coronary artery disease. We defined renal artery stenosis as nonsignificant (〈40%), borderline (40–60%) and significant (〉60%). One-hundred fifty-two patients had renal artery stenosis, while 457 did not. Two-hundred and ten patients had no coronary disease; of these, only 9 had renal artery stenosis. On the other hand, the 143 patients with renal artery stenosis, when subdivided, had similar degrees of coronary disease; three vessel disease was significantly more common than one or two vessel disease in all groups. Renal artery stenosis of all severity degrees was associated with common atherosclerotic risk factors. However, hypertension was not a clue to the presence of renal artery stenosis. To evaluate the effect of percutaneous revascularization on hypertension and renal function all 51 patients with significant renal artery stenosis were treated by primary stent implantation and were follwed up for 6 months. Stent implantation showed a marked decrease in systolic and diastolic blood pressure (163±30 to 145±17 and 93±18 to 83±10 mmHg; p=0.008) with a decrease in the amount of antihypertensive medication but without beneficial effect on serum creatinine during follow-up (1.46±0.70 mg/dl to 1.39±0.58 mg/dl, p=ns). We conclude that renal artery stenosis of any severity is strongly suggestive of three vessel coronary artery disease. The fact that renal stenting lowers blood pressure decreases antihypertensive drugs and increases medication flexibility in patients with coronary artery disease would support the notion of revascularization in patients with significant stenoses.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 66 (1994), S. 1257-1257 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird über die Fortsetzung früherer Versuche zur Darstellung von hochgeschwefelten Chlorsulfan-Ölen SxCl2 aus S2Cl2 und H2 im heiß-kalten Rohr berichtet. Die in einer etwas verbesserten Apparatur erhaltenen Produkte werden durch Untersuchung der RAMAN-Spektren und der Molekulargewichte eingehend charakterisiert. Dabei ergibt sich, daß dieselben neben höheren Homologen der Chlorsulfan-Reihe wechselnde Mengen von physikalisch gelöstem Schwefel enthalten.Die analoge Umsetzung von S2Br2 mit H2 führt zur Bildung von höheren Bromsulfanen SxBr2, deren Existenz durch chemische Analysen und Molekulargewichts-Bestimmungen nachgewiesen werden kann. Daneben enthalten die Umsetzungs-Öle ebenfalls gelösten S8.Es wird ein Verfahren angegeben, welches in derartigen Reaktionsprodukten den Anteil an physikalisch gelöstem Schwefel und damit die tatsächliche mittlere Molekülgröße der Sulfan-Komponente zu ermitteln gestattet.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...