Library

X
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
    Magnetic flux noise in thin-film rings of YBa2Cu3O7−δ (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 695-697 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The low-frequency magnetic flux noise in thin-film rings of YBa2Cu3O7−δ (YBCO) is measured over the temperature range 1.3–125 K by means of a dc superconducting quantum interference device (SQUID) maintained at liquid-helium temperatures. Below the transition temperature Tc of the YBCO, the spectral density of the noise scales as 1/f, where f is the frequency, and generally increases with increasing temperature. The magnitude of the noise depends strongly on the microstructure of the film, and is lowest for a sample which is predominantly oriented with its c axis perpendicular to the substrate. These results imply that SQUID's and flux transformers of YBCO must be fabricated from highly oriented films to produce good resolution at low frequencies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100643
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Feasibility of the high Tc superconducting bolometer (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 283-285 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A design analysis is given for a bolometric infrared detector that uses the resistive transition of a high-temperature superconductor as the temperature sensing element, and liquid nitrogen (LN) as the coolant. It is shown that for highly oriented c-axis films, the measured low-frequency noise causes little or no degradation of the performance. With the incoming radiation chopped at 10 Hz, noise equivalent powers (NEP) in the range (1–20)×10−12 W Hz−1/2 should be achievable. These values compare favorably with the NEP of other detectors operating at or above LN temperatures for wavelengths greater than 20 μm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101447
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Crystallization and preliminary X-ray diffraction studies of the influenza C virus glycoprotein (1996)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 1041-1045 
    Details
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Influenza C virus contains a single surface glycoprotein in its lipid envelope which is the hemagglutinin-esterase-fusion glycoprotein (HEF). HEF binds cell-surface receptors, is a receptor-destroying enzyme (a 9-O-acetylesterase), and mediates the fusion of virus and host cell membranes. A bromelain-released soluble form of HEF has been crystallized. Two different tetragonal forms have been identified from crystals with the same morphology [P1(3)22, a = b = 154.5, c = 414.4 Å, and P41(3)212, a = b = 217.4, c = 421.4 Å]. Both crystal forms share a common packing scheme. Synchrotron data collection and flash cooling of crystals have been used for high-resolution data collection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0907444996005021
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Kutane Reaktionen bei Morbus Crohn Vaskulitiden verschiedener Etagen des Hautorgans (1997)
    Springer
    Der Hautarzt 48 (1997), S. 328-331 
    Details
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Morbus Crohn ; Ileitis terminalis ; Kutane Vaskulitis ; Purpura Schönlein-Henoch ; Erythema nodosum ; Key words Crohn disease ; Ileitis terminalis ; Cutaneous vasculitis ; Schönlein-Henoch purpura ; Erythema nodosum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Two young female patients presented with recurrent erythema and Henoch-Schönlein purpura respectively. In both cases clinical, histological and radiological showed relatively mild, but previously undiagnosed Crohn’s disease as a trigger. We describe the treatment of the underlying disease and the symptomatic treatment of skin lesions. Categories of specific and unspecific skin lesions associated with Crohn’s disease, as described in the literature, are presented. Vasculitic changes of the deep versus the superficial dermal plexus are discussed.
    Notes: Zusammenfassung Wir berichten über 2 junge Patientinnen mit rezidivierendem Erythema nodosum, bzw. Purpura-Schönlein-Henoch unklarer Genese. Bei der klinischen, histologischen und radiologischen Diagnostik zeigte sich in beiden Fällen als Trigger ein relativ mild verlaufender, bisher nicht erkannter Morbus Crohn. Die spezifische Therapie der Grunderkrankung bzw. symptomatische Behandlung der Hauterscheinungen wird beschrieben. Die Einteilung der spezifischen und unspezifischen Crohn-assoziierten Hautsymptome in der Literatur wird dargestellt, und die vaskulitischen Veränderungen des tiefen versus des oberflächlichen dermalen Gefäßplexus werden diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001050050591
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Quantitative measurements of receptive field changes during antagonism of GABAergic transmission in primary somatosensory cortex of cats (1989)
    Springer
    Experimental brain research 78 (1989), S. 514-532 
    Details
    ISSN: 1432-1106
    Keywords: Bicuculline ; Inhibition ; Latency ; Receptive field profile ; Somatosensory cortex ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In cortical area 3b of cats, responses of 76 single neurons to punctate indentations were recorded before and during iontophoretic administration of bicuculline methiodide (BMI), a GABAergic antagonist, at levels that did not affect spontaneous activity. Constant amplitude indentations were applied to selected sites along distalproximal and radial-ulnar axes that intersected the most sensitive area in the receptive field. Profiles of response magnitudes were used to measure receptive field dimensions before and during antagonism of GABAergic inhibition. Blockade of GABAergic transmission caused receptive field dimensions of 48 rapidly-adapting neurons to increase an average 141%, or nearly 2.5 times their original size. Analysis of the spatial distribution of inhibition indicated that in-field inhibition was larger than surround inhibition. During BMI administration, response latency was significantly longer for response elicited from the expanded territory than for responses elicited from within the original receptive field, suggesting that receptive field expansion might be mediated by multisynaptic intracortical connections. The magnitude of receptive field expansion was independent of receptive field size or peripheral location. In a substantial number of neurons, however, BMI produced asymmetric expansions that extended only in the proximal direction. For 9 slowly-adapting neurons, BMI produced measureable increases in receptive field dimensions, but these changes were significantly smaller than the changes in rapidly-adapting neurons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00230239
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Liver transplantation for the treatment of urea cycle disorders (1998)
    Springer
    Journal of inherited metabolic disease 21 (1998), S. 112-118 
    Details
    ISSN: 1573-2665
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The principal goal of therapy when liver transplantation is used for the treatment of metabolic disease is to correct the metabolic error. By doing so, liver transplantation eliminates the hepatic and peripheral consequences of the error. Inborn errors involving the urea cycle appear on theoretical grounds to be amenable to treatment using liver transplantation and, indeed, published data demonstrate that this approach to therapy can be successful. The purpose of this study is to examine the outcome of liver transplantation done for the indication of urea cycle defects in a large group of patients. The first goal of the study is to determine with certainty that liver transplantation corrects hyperammonaemia and halts the progress of disease. A second goal is to determine the extent of neurological recovery in children previously injured by hyperammonaemia. The final goal is to understand whether the quality of life is improved and medical expense is reduced by transplantation. The study involved a survey of major transplantation centres. Four centres provided data about 16 patients, 14 of whom were alive 11 months to 6 years after transplantation. The results demonstrate that liver transplantation resulted in correction of hyperammonaemia in all patients. The neurological outcome after transplantation correlated closely with the condition prior to transplantation. This population of patients has had relatively few problems in the long term related to the liver transplant itself. The quality of life seems to be much improved, but further study will be needed to confirm this. Limited data involving two patients show a reduction in the cost of care. We conclude from our experience that liver transplantation can be an effective treatment for children with urea cycle defects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005317909946
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...