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  • 1
    Electronic Resource
    Electronic Resource
    Dynamics of SCR, EEG, and ERP activity in an oddball paradigm with short interstimulus intervals (1999)
    Oxford, UK : Blackwell Publishing
    Psychophysiology 36 (1999), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Studies of concurrent central, and autonomic activity using a conventional event-related potential (ERP) oddball paradigms, are considered useful in elucidating the relationship between central and autonomic responses, but the autonomic response tends to overlap. A new method was used to decompose and score overlapping skin conductance responses (SCR). This method enabled examination of dynamic relationships of phasic SCR, prestimulus electroencephalogram (EEG), and ERP to auditory target stimuli in 50 normal adults. SCR amplitude was negatively correlated to EEG and N200 amplitude. The SCR amplitude changes over time exhibited an exponential decline opposite to those of N200, alpha, and beta. All the fitted exponential functions had a time constant of 1–2 min. The findings suggest that a N200 component, active in the auditory sensory discrimination, is concomitant with the SCR. The narrow range of the time constant may provide a clue to the conjoint processes underlying central and autonomic adaptive functions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1469-8986.3650543
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  • 2
    Electronic Resource
    Electronic Resource
    CERI and Systems (1972)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of educational technology 3 (1972), S. 0 
    Details
    ISSN: 1467-8535
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Education
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8535.1972.tb00576.x
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  • 3
    Electronic Resource
    Electronic Resource
    Nutrition of the Domestic Cat, a Mammalian Carnivore (1984)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Nutrition 4 (1984), S. 521-562 
    Details
    ISSN: 0199-9885
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.nu.04.070184.002513
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  • 4
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    Usage of Superphosphate on Australian Pastures: An Exploratory Analysis (1974)
    Canberra : Periodicals Archive Online (PAO)
    Quarterly review of the rural economy. 27:1 (1974:Jan.) 39 
    Details
    ISSN: 0156-7446
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Economics
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:6017-1974-027-01-000003
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  • 5
    Electronic Resource
    Electronic Resource
    βHydroxyaspartate Pathway: A New Route for Biosyntheses from Glyoxylate (1963)
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 456-457 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN micro-organisms grow on glycollate as sole source of carbon, reactions ancillary to the tri-carboxylic acid cycle must occur to replenish, from the C2-growth substrate, the intermediates of the cycle which have been removed in the course of cellular syntheses. In micro-organisms such as E. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/197456a0
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  • 6
    Electronic Resource
    Electronic Resource
    Optimal objective function approximation for separable convex quadratic programming (1994)
    Springer
    Mathematical programming 67 (1994), S. 133-142 
    Details
    ISSN: 1436-4646
    Keywords: Separable programming ; Quadratic programming
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract We present an optimal piecewise-linear approximation method for the objective function of separable convex quadratic programs. The method provides guidelines on how many grid points to use and how to position them for a piecewise-linear approximation if the error induced by the approximation is to be bounded a priori.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01582218
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  • 7
    Electronic Resource
    Electronic Resource
    Spatial price equilibrium, distribution center location and successive over-relaxation (1986)
    Springer
    Annals of operations research 6 (1986), S. 111-128 
    Details
    ISSN: 1572-9338
    Keywords: Spatial price equilibrium ; quadratic programming ; interregional trade ; distribution ; successive over-relaxation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract A spatial price equilibrium problem is modeled which allows piecewise linear convex flow costs, and a capacity limit on the trade flow between each supply/demand pair of regions. Alternatively, the model determines the locations of intermediate distribution centers in a market economy composed of separate regions, each with approximately linear supply and demand functions. Equilibrium prices, regional supply and demand quantities, and commodity flows are determined endogenously. The model has a quadratic programming formulation which is then reduced by exploiting the structure. The reduced model is particularly well suited to solution using successive over-relaxation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02026819
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  • 8
    Electronic Resource
    Electronic Resource
    Increasing dispensable amino acids in diets of kittens fed essential amino acids at or below their requirement increases the requirement for arginine (1997)
    Springer
    Amino acids 13 (1997), S. 257-272 
    Details
    ISSN: 1438-2199
    Keywords: Essential amino acids ; Dispensable amino acids ; Crude protein ; Orotic acid ; Feline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Kittens fed diets containing 0.75 × the NRC (1986) essential amino acid requirement (EAArq) and 210 to 560g crude protein(CP)/kg diet exhibited, with increasing CP: 1) decreasing weight gain, 2) decreasing plasma arginine concentrations, 3) increasing urinary orotic acid excretion, 4) increasing plasma glutamic acid concentrations, and 5) plasma isoleucine concentrations at levels that suggest a marginal isoleucine deficiency. Kittens fed a control diet (CD) containing 1.5 × EAArq and 350 g CP/kg diet had maximal weight gains and no orotic aciduria. It was concluded that the decreased weight gain and adverse metabolic effects were caused by arginine deficiency and possibly glutamic acid toxicity induced by high dietary dispensable amino acids. Kittens fed the diets containing 1.0 × EAArq and 350 and 560 g CP/kg diet had depressed plasma arginine and elevated glutamic acid concentrations and orotic aciduria. These results indicate that 10 g arg/kg diet is not adequate at CP concentrations above 280 g/kg and the calculated requirement of arginine is (0.02 g arginine/g CP) × (Y g CP/kg diet) + (4.0 g arginine/kg diet) where Y is the dietary CP level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01372591
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  • 9
    Electronic Resource
    Electronic Resource
    Maximal growth occurs at a broad range of essential amino acids to total nitrogen ratios in kittens (1998)
    Springer
    Amino acids 15 (1998), S. 221-234 
    Details
    ISSN: 1438-2199
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Kittens fed diets containing 2.0 and 3.0 times (X) the NRC (1986) essential amino acid (EAA) requirement (EAArq) and 210 to 560g crude protein (CP)/kg diet had growth rates and plasma amino acid patterns that were not significantly different than kittens fed a control diet (CD) containing 1.5 X EAArq and 350 g CP/kg diet. Growth rates of kittens fed diets containing only EAA (with nontoxic levels of arginine and methionine) and 280 to 460 g CP/kg diet were equivalent to those of kittens fed CD. Kittens fed only EAA and 140 and 210 g CP/kg diet had growth rates that were significantly lower than kittens fed CD. Since the growth rate of kittens fed 1.5X EAArq and 210 g CP/kg diet in a previous experiment was equivalent to kittens fed CD (Taylor et al., 1997), it is suggested that the requirement for CP is higher (up to 280 g CP/kg diet) when only EAA are fed. The higher crude protein requirement appears to be primarily a consequence of the high obligatory nitrogen loss as urea (especially from arginine) incurred in the conversion of nitrogen from EAA to dispensable amino acids in the liver and secondarily because of a slow rate of catabolism of the EAA. A 3-dimensional plot of weight gains vs. CP levels and EAA to total nitrogen (E: T) ratios of kittens shows a broad range of CP levels and E: T ratios that support optimal growth in the kitten. It is suggested that similar patterns would occur in the chick, rat and other species if adverse effects caused by excesses of specific amino acids are avoided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01318861
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  • 10
    Electronic Resource
    Electronic Resource
    Ubiquitin-positive achromatic neurons in corticobasal degeneration (1995)
    Springer
    Acta neuropathologica 90 (1995), S. 68-75 
    Details
    ISSN: 1432-0533
    Keywords: Key words Neuropathology ; Ballooned neurons ; Ubiquitin ; Quantitation ; Alien limb
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 66-year-old woman presented with an alien limb syndrome without dementia. The course of her illness was unremitting and at autopsy 6 years later her diagnosis was confirmed as corticobasal degeneration without Alzheimer-type pathology. Although the presence of ballooned achromatic cortical neurons and cell loss from the substantia nigra distinguishes such patients, the site and density of achromatic neurons has not previously been quantified. We show that immunohistochemistry for the cell stress protein ubiquitin selectively stains these achromatic neurons, whereas they do not stain for abnormally phosphorylated tau protein. Phosphorylated neurofilament antibodies recognise both ballooned and non-ballooned neurons. In this case, high densities of ubiquitin-positive ballooned neurons were found in frontal cortical regions with the highest densities in layers V and VI of the anterior cingulate cortex. In addition, high densities of ubiquitin-positive ballooned neurons were found in the insular cortex, claustrum and amygdala. These results confirm past reports of frontal pathology, but show that there is also considerable pathology in insular and parahippocampal cortical regions and some subcortical regions. Our findings suggest that the distribution and staining characteristics of ballooned neurons in corticobasal degeneration may help to differentiate these cases pathologically, while the absence of dementia appears to be an important clinical criterion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00294461
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