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
    Book
    Book
    Free boundary value problems; Vol. 95 (1990)
    Basel u.a. :Birkhäuser,
    Details
    Title: Free boundary value problems; Vol. 95
    Contributer: Hoffmann, K.-H. , Sprekels, J.
    Publisher: Basel u.a. :Birkhäuser,
    Year of publication: 1990
    Pages: 275 S.
    Series Statement: International series of numerical mathematics Vol. 95
    Type of Medium: Book
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    ZIB Catalog
    Zuse Institute Berlin get availability status
  • 2
    Electronic Resource
    Electronic Resource
    EPR spectra of low-symmetry tetrahedral high-spin cobalt(II) in a cinchoninium tetrachlorocobaltate(II) dihydrate single crystal (1985)
    s.l. : American Chemical Society
    Inorganic chemistry 24 (1985), S. 4009-4012 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00218a009
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    A New Synthesis of 2,7-Naphthyridine Derivatives1 (1954)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 76 (1954), S. 3220-3222 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01641a037
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Olivary afferents from the pretectal nuclei in the cat (1981)
    Springer
    Anatomy and embryology 161 (1981), S. 291-304 
    Details
    ISSN: 1432-0568
    Keywords: Pretectoolivary fibres ; Horseradish peroxidase ; Retrograde transport
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The organization of the projection from the pretectal region to the inferior olive in the cat was studied by means of retrograde protein tracing and experimental degeneration. Small injections of horseradish peroxidase (HRP) were made into various parts of the inferior olive from a ventral approach. The number of nerve cells in the pretectal nuclei retrogradely labelled with HRP was counted and put in relation to the site of injection. Labelled cells were only found in the posterior pretectal nucleus (NPP), the nucleus of the optic tract (NOT) and the anterior pretectal nucleus (NPA). Most labelled cells were found in NPP and NOT in cases in which the rostral or caudal levels of the principal olive were labelled by the injection. NAP labelling occurred in one case with a very rostral injection of the inferior olive. Unilateral electrolytical destruction of the pretectal region produced terminal degeneration in the ipsilateral inferior olive. The heaviest ipsilateral degeneration was found in the upper half of the principal and dorsal accessory olives, and caudally in the ventrolateral outgrowth, the dorsal cap and nucleus β with the adjacent part of the medial accessory olive. Some functional implications of the findings are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00301827
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Long-term manometry of tubular esophagus in progressive systemic sclerosis (1994)
    Springer
    Journal of molecular medicine 72 (1994), S. 343-349 
    Details
    ISSN: 1432-1440
    Keywords: Long-term manometry ; Progressive systemic sclerosis ; Esophageal involvement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Long-term manometry of the tubular esophagus was performed in 20 consecutive patients (18 females, 2 males; median age 56.5 years) with progressive systemic sclerosis (PSS) and a control group of 20 healthy subjects (18 females, 2 males; median age 56.5 years). The measurements were performed via a data logger of 1 MByte memory capacity with the help of two pressure sensors placed 8 and 18 cm above the lower esophageal sphincter. Esophageal contractions were analyzed with respect to pressure amplitudes in the esophagus distal and proximal, quotient of pressure amplitudes distal/proximal, number of contraction waves in a 24-h period, and kind of spreading (propulsive, simultaneous). In the PSS group there was a significant decrease in pressure amplitudes in the distal sensor (median 31.5 versus 39.5 mbar in controls, P 〈 0.02), in the quotient of pressure amplitudes distal/proximal (median 0.885 versus 1.25 in controls, P 〈 0.001), in the number of waves in 24 h (median 939.5 versus 1656 in controls, P 〈 0.01), and in the occurrence of propulsive waves (median 34% versus 57% in controls, P 〈 0.01). Fifteen patients (75%) had hypomotility disorders as compared to the control group, in which the lower limit of normal values was defined by the 5th percentile of descriptive analysis. These first data of long-term manometry in patients with PSS indicate that long-term manometry may be an effective method for identifying esophageal involvement in PSS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00252825
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Untersuchungen über die Wirkungsweise der Lactulose (β-Galactosido-Fructose) im Darm (1964)
    Springer
    Journal of molecular medicine 42 (1964), S. 126-130 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary 1. Lactulose was administered orally in 20 g quantities to four adult, healthy human volunteers. It appeared that this sugar was absorbed in traces only, if at all. 2. Ten strains each of B. bifidum and Ristella, 4 of L. acidophilus, 7 of Lancefield group D streptococci, 5 each of E. coli and Salmonella, one of Sh. sonnei, 2 of Proteus, 3 of Cl. perfringens and 6 of Staph. aureus, all freshly isolated from adult and infant stools, were examined for attack on lactulose, using Mossel & Martin's one tube modification of Hugh & Leifson's 0/F-test. B. bifidum, L. acidophilus and the D-streptococci dissimilate this sugar, yielding predominantly lactic acid; Cl. perfringens attacks lactulose with vigorous gas formation. E. coli and Staph. aureus attack lactulose only very weakly, whereas Ristella, Proteus, Salmonella and Shigella seem unable to metabolize this sugar. 3. The action of lactulose in the human intestine seems therefore to originate from bacterial attack on the non absorbed sugar occurring in the colon. This results in the formation of considerable amounts of lactic acid, which both suppresses the development of acid-sensitive intestinal bacteria and stimulates peristalsis.
    Notes: Zusammenfassung 1. Die Lactulose wird vom gesunden Menschen nur in geringen Mengen resorbiert. 2. B. bifidum, L. acidophilus und Streptokokken der Lancefield-Gruppe D bauen regelmäßig Lactulose ab, wobei überwiegend Milchsäure entsteht. C. perfringens bildet aus Lactulose Säure und Gas. E. coli und Staph. aureus bilden aus Lactulose keine bzw. nur sehr wenig Milchsäure. Bei Bacteroides, Proteus, Salmonellen und Shigellen wurde keine Säuerung des Lactulose-Nährbodens gefunden. 3. Die acidophilen Bakterien (B. bifidum, L. acidophilus und Streptokokken der Lancefield-Gruppe D) schaffen mit Hilfe der Lactulose-Spaltung ein saures Dickdarmmilieu, in dem diese Bakterien wieder bevorzugt gediehen können. Die entstandene Milchsäure vermag außerdem die Darmperistaltik anzuregen. 4. Das bifidogene Prinzip der Lactulose besteht aus: a) Übertritt unresorbierter Lactulose ins Colon. b) Bevorzugter Spaltbarkeit durch B. bifidum und Ausnutzbarkeit der Lactulose als Energiequelle und Wachstumsfaktor für B. bifidum. c) Schaffung eines sauren Milieus zugunsten der acidophilen B. bifidum-Bakterien und Unterdrückung der alkalophilen Darmbakterien.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01479054
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Versuche zur Bestimmung der Resistenz von Tuberkelbakterien gegen Paraaminosalicylsäure in vitro (1951)
    Springer
    Medical microbiology and immunology 132 (1951), S. 325-329 
    Details
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es werden 2 Methoden zur Prüfung der Resistenz der Tuberkelbakterien gegen Paraaminosalicylsäure beschrieben. Die PAS ist zwar hitzeempfindlich; doch läßt sie sich bei Einhaltung bestimmter Temperatur- und Zeitgrenzen bequem dem Eisubstrat zusetzen. Die Methode der Zugabe der PAS zu dem Eiernährboden vor dem Koagulieren ist der Filterplättchenmethode überlegen. Von 344 geprüften Stämmen waren 2 resistent gegen PAS sowie gleichzeitig gegen Tb I und Streptomycin und I Stamm resistent nur gegen PAS. Diese resistenten Stämme erwiesen sich im Tierversuch als apathogen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02149450
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Analysis of neuronal networks in the visual system of the cat using statistical signals (1976)
    Springer
    Biological cybernetics 22 (1976), S. 7-20 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract If the input signals of the visual system in the cat are statistical patterns in space and time, a complete system analysis can be carried out. What counts here as a system are the neuronal networks between retina and recording site. In the case of linearity, one obtains the temporal impulse response functions at every point in the receptive field with the aid of correlation methods. The measuring time is about one minute. Some aspects of the procedure are explained in terms of examples. The method of measurement also makes it possible to determine the characteristic function of the system in time and space between different recording sites within the cortex. It is possible to specialize the procedure for analysing the stationary space dependent behaviour of neuronal networks. The extension of the analysis procedure allows a concise, relatively simple description for nonlinear systems in which linear and nonlinear subsystems can be separated. Besides this, there are no restrictions concerning the kind of nonlinearity. A second paper will present the detailed experimental application of these methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00340228
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Analysis of neuronal networks in the visual system of the cat using statistical signals — Simple and complex cells (1978)
    Springer
    Biological cybernetics 31 (1978), S. 175-185 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract Superimposing additively a two-dimensional noise process to deterministic input signals (bars) the neurons of area 17 show a class-specific reaction for the task of signal extraction. Moving both parts of the signals simultaneously and varying the signal to noise ratio (S/N) the simple cells achieve the same performance as resulted from the psychophysical experiment. Type I complex cells extract moving deterministic signals (i.e. bars) from the stationary noise, whereas in the answers of Type II complex cells the statistical parts of the signals predominate. Considering the different cell types each as a series of a linear and a nonlinear system one obtains the cell specific space-time frequency and the amplitude characteristics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00337004
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Population coding of arm-movement-related neurons in and below the superior colliculus of Macaca mulatta (1997)
    Springer
    Biological cybernetics 76 (1997), S. 331-337 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract. It has been shown for the motor cortex of primates, that an arm trajectory is coded as a population vector formed by many neurons with activities correlated with arm movements. Recently, neurons in the primate superior colliculus that also display activities related to arm movements have been described. In the present paper we show that a subpopulation of this type of neuron is able to code for limb movement by the population vector. However, the cosine function cannot describe these neurons adequately. Rather the Fisher distribution yields a much better description of arm-movement-related cells in the superior colliculus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004220050346
    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...