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  • 11
    Electronic Resource
    Electronic Resource
    Effects of loprazolam and of triazolam on psychological functions (1984)
    Springer
    Psychopharmacology 82 (1984), S. 386-388 
    Details
    ISSN: 1432-2072
    Keywords: Loprazolam ; Triazolam ; Residual effects ; Psychological functions ; Rebound insomnia ; Accidents ; Spontaneous complaints ; Manual dexterity ; Visual analogue scales
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Twelve poor sleepers of mean age 52 years performed 2 h of laboratory tests three times on 1 day during each week of nightly intake of loprazolam 0.5 mg, loprazolam 1 mg, triazolam 0.5 mg, or continued placebos. Only in the mornings did loprazolam 1 mg cause impairment in manual dexterity and card-sorting, and triazolam 0.5 mg in manual dexterity. Using difference from baseline, withdrawal of either drug after 3 weeks was associated with poorer subjective quality of sleep than following continuing placebos. The rate of spontaneous complaints (including accidents) associated with the drugs was as informative as formal testing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00427691
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  • 12
    Electronic Resource
    Electronic Resource
    Finite element multigrid solution of Euler flows past installed aero-engines (1993)
    Springer
    Computational mechanics 11 (1993), S. 433-451 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A finite element based procedure for the solution of the compressible Euler equations on unstructured tetrahedral grids is described. The spatial discretisation is accomplished by means of an approximate variational formulatin, with the explicit addition of a matrix form of artificial viscosity. The solution is advanced in time by means of an explicit multi-stage time stepping procedure. The method is implemented in terms of an edge based representation for the tetrahedral grid. The solution procedure is accelerated by use of a fully unstructured multigrid algorithm. The approach is applied to the simulation of the flow past an installed aero-engine nacelle, at three different free stream conditions. Comparison is made between the numerical predictions and experimental pressure observations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00350098
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  • 13
    Electronic Resource
    Electronic Resource
    Segregation of allozymes in megagametophytes of viable seed from a natural population of jack pine, Pinus banksiana Lamb. (1984)
    Springer
    Theoretical and applied genetics 69 (1984), S. 145-151 
    Details
    ISSN: 1432-2242
    Keywords: Segregation distortion ; Allozymes ; Pinus banksiana Lamb. ; Lethal allelism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Segregation ratios of allozymes in haploid female gametophytes obtained from viable seed were studied in a natural population of jack pine, Pinus banksiana. Stability of these ratios was assessed for three levels of the sexually reproductive crown as well as for four years of natural fertilization. Analyses of observed segregation ratios of four of five polymorphic isozyme loci showed good correspondence to the overall 1∶1 ratios expected for simple Mendelian inheritance. Allozymes of glucose-6-phosphate dehydrogenase did not segregate in the expected 1∶1 ratio. In addition, there were significant deviations from the expected segregation ratio for all the loci at some sampling positions on individual trees. Heterogeneity of segregation among trees, strata and years could be the result of pollen pool heterogeneity, segregation distortion and/or recessive lethal and semi-lethal gene combinations resulting in early embryo abortion. These types of segregation deviations in viable seed can affect the estimation of allele frequencies from bulked samples of a small number of individuals, the inference of heterozygosity/homozygosity of parental trees, and estimates of selfing rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00272888
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  • 14
    Electronic Resource
    Electronic Resource
    Estimation of mating system parameters in plant populations using the EM algorithm (1983)
    Springer
    Theoretical and applied genetics 65 (1983), S. 157-161 
    Details
    ISSN: 1432-2242
    Keywords: Maximum-likelihood estimation ; Mating systems ; Incomplete data ; EM algorithm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An EM algorithm procedure is presented for the maximum-likelihood estimation of mating system parameters of mixed mating system models for both angiosperms and gymnosperms. One advantage of the procedure is the ability to accommodate any number of alleles in the mature population and pollen pool. Estimates of the outcrossing rate ( $$\hat t$$ ) derived from the model are bounded strictly within the natural biological range (i.e., 0 ≦ $$\hat t$$ ≦1).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264884
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  • 15
    Electronic Resource
    Electronic Resource
    Peroxidase and leucine-aminopeptidase in diploidMedicago species closely related to alfalfa: Multiple gene loci, multiple allelism, and linkage (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 221-228 
    Details
    ISSN: 1432-2242
    Keywords: Allozymes ; Peroxidase ; Leucine-aminopeptidase ; Linkage ; Lucerne ; Medicago
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The genetics of peroxidase and leucine-aminopeptidase isozymes was studied utilizing starch gel electrophoresis in the diploidsMedicago sativa L. (M. coerulea Less.) andM. falcata L. Three anodal and one cathodal sets of peroxidase isozymes identify four linked loci. In addition, two anodal sets of leucine-aminopeptidase isozymes identify two loci that may be linked. The allozymes at each of the loci segregated as expected for monomeric enzymes. However in several crosses there were deficiencies in the number of progeny in particular genotypic classes. This could result from the segregation of recessive deleterious genes linked to some of the allozyme alleles. This is the first report of multiple loci and multiple alleles determining isozymes inMedicago.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02342543
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  • 16
    Electronic Resource
    Electronic Resource
    Localization and diurnal expression of mRNA encoding the β1-adrenoceptor in the rat pineal gland: an in situ hybridization study (1997)
    Springer
    Cell & tissue research 288 (1997), S. 279-284 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Adrenoceptors ; Diurnal rhythms ; Regulation ; In situ hybridization ; Pineal gland ; Rat (Wistar)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. The rat pinealocyte is stimulated by norepinephrine, which is released from sympathetic nerve fibers innervating the gland. Norepinephrine binds to β1-adrenoceptors situated on the pinealocyte cell membrane. Ligand binding to these receptors exhibits a diurnal rhythm, with the largest number occurring in the late part of the light phase when the release of norepinephrine is minimal. By using in situ hybridization with a cDNA antisense oligonucleotide probe recognizing mRNA encoding the rat β1-adrenoceptor, we have demonstrated a stronger hybridization signal in the rat pineal gland than in other brain regions. Cells containing β1-mRNA are located in the superficial pineal gland, the deep pineal gland, and the pineal stalk. However, the number of receptors varies considerably between the individual pinealocytes. The β1-mRNA in situ hybridization signal for mRNA encoding the β1-adrenoceptor of the rat pineal has been quantified over a 24-h period; the strongest signal is found at mid-dark and the weakest signal at mid-light, indicating that the transcriptional regulation of β1-mRNA synthesis in the rat pineal is diurnal. In addition, maximal receptor protein expression occurs late in the light phase in the rat pineal and is thus considerably delayed compared with its peak mRNA synthesis. This lag time indicates that the β1-receptor is regulated at the translational or post-translational level. Removal of the sympathetic input to the pineal gland by superior cervical ganglionectomy decreases the β1-mRNA signal in the gland.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050813
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  • 17
    Electronic Resource
    Electronic Resource
    Field Calibration of a Capacitance Water Content Probe in Fine Sand Soils (1999)
    Springer
    Soil Science Society of America journal 63 (1999), S. 987-989 
    Details
    ISSN: 1435-0661
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: v ) of 〈0.10 cm3 cm-3 after drainage due to gravity has ceased. Small changes in θv in the range of 0.02 to 0.08 cm3 cm-3 can greatly affect plant available water and, therefore, good calibration of soil water content sensors is necessary. The EnviroSCAN (Sentek Pty. Ltd., South Australia) is a multiple sensor capacitance probe capable of continuous measurement of soil water content by volume (θv). Many fine sand soils in Florida have plant available θv values of ≤0.08 cm3 cm-3. The manufacturer's calibration curve has very few data points 〈0.10 cm3 cm-3θv and no data in the 0.02 to 0.04 cm3 cm-3θv range. Because of the lack of data in this range, a calibration curve from 0.02 to 0.08 cm3 cm-3θv was developed for Candler fine sand (hyperthermic, uncoated Typic Quartzipsamments), Apopka fine sand (loamy, siliceous, hyperthermic Grossarenic Paleudults), and Immokalee fine sand (sand, siliceous, hyperthermic Arenic Alaquods) in two locations in Florida. Since calibration curves for the three soils did not differ significantly, data from the three soils were combined. An exponential calibration curve was developed (RMSE = 0.0085, R2 = 0.83). This equation provides substantially different estimates of water content in the 0.02 to 0.08 range than values obtained from the manufacturer's calibration. This improved calibration extends the range of the EnviroSCAN to include an important group of soils with very low water holding capacity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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  • 18
    Electronic Resource
    Electronic Resource
    Effect of inoculum density, nitrogen source and saprophytic fungi on Fusarium wilt of Mexican lime (1984)
    Springer
    Plant and soil 79 (1984), S. 203-210 
    Details
    ISSN: 1573-5036
    Keywords: Aspergillus ochraceus ; Citrus ; Fungal antagonism ; Pencillium funiculosum ; pH effect ; Trichoderma harzianum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Mexican lime seedlings were inoculated with 0, 500, 1000, 2000, 4000 and 8000 microconidia ofFusarium oxysporum f. sp.citri per gram of potting media. The percent infection and mean disease severity rating increased with increasing inoculum density of the pathogen. In potting mix infested withAspergillus ochraceus, Penicillium funiculosum andTrichoderma harzianum at 5000 conidia per gram 2 weeks prior to infestation withF. oxysporum f. sp.citri at 0, 1000, 4000, and 8000 microconidia per gram,A. ochraceus reduced,P. funiculosum increased andT. harzianum had no effect on disease severity or pathogen population. OnlyP. funiculosum showed antagonistic activityin vitro against the pathogen. Disease severity and pathogen propagule densitites were greater and pH was lower in potting media fertilized with NH4−N than in media fertilized with NO3−N.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02182342
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  • 19
    Electronic Resource
    Electronic Resource
    A fully nonlinear analysis of heat and mass transfer problems in porous bodies (1980)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 15 (1980), S. 1381-1393 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The finite element method is used to analyse heat and mass transfer problems in porous media, in which the thermophysical properties are allowed to vary as functions of temperature and moisture. An example is given of the application of the method to the problem of timber drying.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620150910
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  • 20
    Electronic Resource
    Electronic Resource
    The finite element method: A first approach, by Alan J. Davies, Clarendon Press, Oxford University Press, 1980. No. of Pages: 287. Price: £19.50 (hardback), £9.50 (paperback) (1981)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 17 (1981), S. 309-309 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620170215
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