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  • 1
    Electronic Resource
    Electronic Resource
    Angelman syndrome in an inbred family (1996)
    Springer
    Human genetics 〈Berlin〉 97 (1996), S. 294-298 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Angelman syndrome (AS) is characterized by severe mental retardation, absent speech, puppet-like movements, inappropriate laughter, epilepsy, and abnormal electroencephalogram. The majority of AS patients (≈ 65%) have a maternal deficiency within chromosomal region 15q11–q13, caused by maternal deletion or paternal uniparental disomy (UPD). Approximately 35% of AS patients exhibit neither detectable deletion nor UPD, but a subset of these patients have abnormal methylation at several loci in the 15q11–q13 interval. We describe here three patients with Angelman syndrome belonging to an extended inbred family. High resolution chromosome analysis combined with DNA analysis using 14 marker loci from the 15q11-q13 region failed to detect a deletion in any of the three patients. Paternal UPD of chromosome 15 was detected in one case, while the other two patients have abnormal methylation atD15S9, D15S63, andSNRPN. Although the three patients are distantly related, the chromosome 15q11-q13 haplotypes are different, suggesting that independent mutations gave rise to AS in this family.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02185757
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  • 2
    Electronic Resource
    Electronic Resource
    Angelman syndrome in an inbred family (1996)
    Springer
    Human genetics 〈Berlin〉 97 (1996), S. 294-298 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Angelman syndrome (AS) is characterized by severe mental retardation, absent speech, puppet-like movements, inappropriate laughter, epilepsy, and abnormal electroencephalogram. The majority of AS patients (≈ 65%) have a maternal deficiency within chromosomal region 15q11–q13, caused by maternal deletion or paternal uniparental disomy (UPD). Approximately 35% of AS patients exhibit neither detectable deletion nor UPD, but a subset of these patients have abnormal methylation at several loci in the 15q11–q13 interval. We describe here three patients with Angelman syndrome belonging to an extended inbred family. High resolution chromosome analysis combined with DNA analysis using 14 marker loci from the 15q11–q13 region failed to detect a deletion in any of the three patients. Paternal UPD of chromosome 15 was detected in one case, while the other two patients have abnormal methylation at D15S9, D15S63, and SNRPN. Although the three patients are distantly related, the chromosome 15q11–q13 haplotypes are different, suggesting that independent mutations gave rise to AS in this family.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02185757
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  • 3
    Electronic Resource
    Electronic Resource
    The Asymptotic Optimality of Residual Income Maximization (1998)
    Springer
    Review of accounting studies 2 (1998), S. 207-229 
    Details
    ISSN: 1573-7136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract Residual income subtracts from operating income an interest charge for invested capital. Residual income can be calculated each period from current accounting information, unlike discounted cash flow (DCF), which requires the knowledge of future cash flows. This paper provides a normative justification for residual-income maximization by showing that if investment decisions are made myopically each period to maximize residual income, the resulting path asymptotically maximizes discounted cash flow. Thus, under the assumptions of the model, residual-income maximization is a heuristic that leads to the long-run DCF-optimum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1023636720728
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  • 4
    Electronic Resource
    Electronic Resource
    Activity-Based Costing for Economic Value Added® (1998)
    Springer
    Review of accounting studies 2 (1998), S. 231-264 
    Details
    ISSN: 1573-7136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract Economic value added, which is the currently popular term for the traditional accounting concept of residual income (RI), subtracts from operating income an interest charge for invested capital. This paper provides an activity-based cost system that supports RI maximization. We construct a model of participative budgeting for a multi-activity firm in which the cost system allocates plant and equipment cost to products using a formula that includes the interest charge. The budget system we design enables decision makers to identify RI-improving opportunities for outsourcing and dropping unprofitable products. The budget system also has the “open-architecture” property that additional informal communication among activity managers can only serve to increase RI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018317230647
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of Chemical Reaction on Two-Dimensional Turbulence (1999)
    Springer
    Journal of scientific computing 14 (1999), S. 31-72 
    Details
    ISSN: 1573-7691
    Keywords: Turbulent reactive flows ; direct numerical simulation ; two-dimensional turbulence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Direct numerical simulations of compressible two-dimensional homogeneous turbulent reacting flows are conducted to investigate the interactions between turbulence and chemical reaction. Both isothermal and exothermic nonpremixed reactions are considered. In isothermal reacting simulations, the turbulence is not affected by the reaction and is characterized by the large scale coherent vortices and vorticity-gradient sheet structures. The spatial structures of the density and temperature fields are similar to that of vorticity. However, mixing and reaction occur in the layer like (lamellar) structures which are mainly formed in the hyperbolic flow regions, where the vorticily-gradient sheets are present and the turbulent stretching dominates the circulation. Analysis of the simulations with exothermic reactions indicates that the heat of reaction has significant influence on thc spatial and the compositional structure of velocity, scalar and thermodynamic variables. The fluctuations of the density, the temperature, the pressure and the dilatation are substantially increased due to nonuniform heat release. The heat of reaction also modifies the small scale solenoidal velocity field. At early times, when the reaction is significant, the magnitude of the vorticity (enstrophy) is enhanced by the baroclinic vorticity generation. At late times, when the reaction is almost completed, the molecular dissipation is dominant and the magnitude of vorticity decays continuously. Examination of the energy transfer among the rotational and the compressive components of the kinetic energy and the internal energy indicates that the energy of reaction is transfered to the compressive component of the kinetic energy by the pressure-dilatation correlations. The turbulent advection then transfer the energy from the compressive component of the kinetic energy to its rotational component.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1025672705324
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  • 6
    Electronic Resource
    Electronic Resource
    Significance of cyst fragments ofArtemia sp. recovered from a 27,000 year old core taken under the Great Salt Lake, Utah, USA (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 207-216 
    Details
    ISSN: 1573-8590
    Keywords: ancient DNA ; Artemia franciscana ; brine shrimp ; geologic cores ; Great Salt Lake ; palaeobiochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract We present electron microscopic observations on fragments of encysted embryos of the crustacean,Artemia sp., recovered from a 27,000 year-old core section taken under the Great Salt Lake (GSL), Utah. The significance of these results comes from a consideration of the geological history of the GSL and the extraordinary properties and abundance ofArtemia cysts at this site. We make the case that this unique system, and probably other salt lakes as well, provides novel opportunities for the study of “ancient DNA” and related matters. The analysis provides the major focus of this paper, which we hope will stimulate interest in this aspect of salt lake research.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02449925
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  • 7
    Electronic Resource
    Electronic Resource
    Significance of cyst fragments of Artemia sp. recovered from a 27,000 year old core taken under the Great Salt Lake, Utah, USA (1997)
    Springer
    International journal of salt lake research 6 (1997), S. 207-216 
    Details
    ISSN: 1573-8590
    Keywords: ancient DNA ; Artemia franciscana ; brine shrimp ; geologic cores ; Great Salt Lake ; palaeobiochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract We present electron microscopicobservations on fragments of encysted embryos of thecrustacean, Artemia sp., recovered from a 27,000year-old core section taken under the Great Salt Lake(GSL), Utah. The significance of these results comesfrom a consideration of the geological history of theGSL and the extraordinary properties and abundance ofArtemia cysts at this site. We make the casethat this unique system, and probably other salt lakesas well, provides novel opportunities for the studyof “ancient DNA” and related matters. The analysisprovides the major focus of this paper, which we hopewill stimulate interest in this aspect of salt lakeresearch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009042209989
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  • 8
    Electronic Resource
    Electronic Resource
    Strain-coupling effects in steady planar extension (1995)
    Springer
    Rheologica acta 34 (1995), S. 281-287 
    Details
    ISSN: 1435-1528
    Keywords: Strain coupling ; planar extension ; nonlinear viscoelasticity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract This study is concerned with an evaluation of the capability of the strain-coupling model to predict steady shear and steady planar extensional flows. A comparison is made between the predictions of the K-BKZ and strain-coupling theories.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00396018
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  • 9
    Electronic Resource
    Electronic Resource
    Field and Nutrient Solution Tests Measure Similar Mechanisms Controlling Iron Deficiency Chlorosis in Soybean (1998)
    Springer
    Crop science 38 (1998), S. 254-259 
    Details
    ISSN: 1435-0653
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Glycine max (L.) Merr.] with improved iron efficiency. Although rates of gain are similar for both methods, it has not been previously demonstrated that field tests and nutrient solution tests for IDC measure similar genetic mechanisms. To test this, quantitative trait loci (QTL) identified in nutrient solutions were compared with those previously identified in field studies. F24 lines from two populations, Pride B216 x A15 and Anoka x A7, were grown in nutrient solution and evaluated for IDC by visual scores and determinations of chlorophyll concentrations. In the Anoka x A7 population, one major gene on linkage group N, and modifying QTL on linkage groups A1 and I, that were previously mapped during field tests, also were identified in the nutrient solution test. In the Pride B216 x A15 population, one QTL previously mapped on Linkage Group I during field tests was not identified in the nutrient solution test, and a newly identified QTL was mapped on Linkage Group B1. QTL on Linkage Groups B2, G, and N were identified in both field and nutrient solution tests. We concluded that similar QTL are identified in nutrient solution and field tests and, therefore, both systems identify similar genetic mechanisms of iron uptake and/or utilization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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  • 10
    Electronic Resource
    Electronic Resource
    Inheritance and QTL Analysis of Field Resistance to Ashy Stem Blight in Common Bean (1998)
    Springer
    Crop science 38 (1998), S. 916-921 
    Details
    ISSN: 1435-0653
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Macrophomina phaseolina (Tassi) Goid.] can be a serious disease of common bean (Phaseolus vulgarisL.) under drought and high temperature conditions in some regions. The mode of inheritance of valuable sources of resistance is lacking. We studies inheritance of field resistance to ashy stem blight in a recombinant inbred population ('Dorado' X XAN 176) consisting of 119 F5∝7 recombinant inbred lines (RILs) tested in replicated experiments across 2 yr. A score from 1 to 9 (no disease to severe disease) was used to measure disease reaction. Moderate HNS (0.53 and 0.57) and near-normal frequency distribution of RILs for mean disease score each year indicated a lack of discrete segregation classes. The phenotypic variation across a subgroup composed of 79 RILs was further investigated with 165 randomly amplified polymorphic DNA (RAPD) markers by one-way analyses of variance and interval mapping. Five quantitative trait loci (QTL), explaining 19, 15, 15, 13, and 13% of the phenotypic variation for disease score, were detected in 1993. Three of these QTL , explaining 15, 12, and 12% of the variation in disease reaction, were detected in 1994. Multiple QTL regression models (P 〈 0.01) explained up to 47% (four loci) of the phenotypic variation for disease score in 1993 and 28% (three loci) in 1994. The five QTL, all derived from XAN 176, generally showed additive effects. These QTL-linked RAPD markers may prove useful for indirect selection of field resistance to ashy stem blight derived from XAN 176.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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