ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
    Effect of p,p′-DDT and estrogen on the presence in the circulation and degranulation of blood eosinophil leukocytes (1995)
    Springer
    Bulletin of environmental contamination and toxicology 55 (1995), S. 309-315 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203026
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    β-Thalassemia and βA globin gene haplotypes in Mexican mestizos (1997)
    Springer
    Human genetics 〈Berlin〉 99 (1997), S. 498-500 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract β-globin haplotypes of 20 β-thalassemia (β-thal) and 87 βA Mexican mestizo chromosomes were analyzed to ascertain the origin of the β-thal alleles and the frequencies and distribution of the βA haplotypes among northwestern Mexican mestizos. Sixteen β-thal chromosomes carried six Mediterranean alleles [five codon 39 C→T; two IVS1:1 G→A; two IVS1:5 G→A; three IVS1:110 G(A; one codon 11 (–T) and three (δβ)°-thal]; the remaining four were linked to three rare alleles (two –28 A→C and one each: –87 C→T and initiation codon ATG→GTG). Among the 87 βA chromosomes, 17 different 5′ haplotypes with frequencies for 1, 3, 2 and 5 of 39.0%, 17. 2%, 9.2% and 6.9%, respectively, were observed. The β-haplotype analysis showed that 13 out of 16 Mediterranean chromosomes could easily be explained by gene migration; however, one codon 39 associated with haplotype 4 (– – – – + + –), one IVS1:1 with haplotype 1(+ – – – – + +) and one IVS1:5 G→A, may represent separate mutational events. Analysis of the rare alleles showed that the –28 A→C mutation was associated with the commonest βA haplotype in Mexican mestizos, Mediterraneans and the total world population; therefore an independent origin cannot be ruled out. The –87 C→T and initiation codon ATG→GTG were found with β-haplotypes different from the reported ones, suggesting an indigenous origin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050395
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Woodward's reagent K reacts with histidine and cysteine residues inEscherichia coli andSaccharomyces cerevisiae phosphoenolpyruvate carboxykinases (1996)
    Springer
    The protein journal 15 (1996), S. 467-472 
    Details
    ISSN: 1573-4943
    Keywords: Woodward's reagent K ; histidyl residues ; cysteinyl residues ; phosphoenolpyruvate carboxykinase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction of Woordward's reagent K (WRK) with model amino acids and proteins has been analyzed. Our results indicate that WRK forms 340-nm-absorbing adducts with sulfhydryl- and imidazol-containing compounds, but not with carboxylic acid derivatives, in agreement with Llamaset al. [(1986),J. Am. Chem. Soc. 108, 5543–5548], but not with Sinha and Brewer [(1985),Anal. Biochem. 151, 327–333]. The chemical modification ofEscherichia coli andSaccharomyces cerevisiae phosphoenolpyruvate carboxykinases with WRK leads to an increase in the absorption at 340 nm, and we have demonstrated its reaction with His and Cys residues in these proteins. These results caution against claims of glutamic or aspartic acid modification by WRK based on the absorption at 340 nm of protein-WRK adducts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01886854
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    RAPD variation in wild populations of four species of the genus Hordeum (Poaceae) (1998)
    Springer
    Theoretical and applied genetics 96 (1998), S. 101-111 
    Details
    ISSN: 1432-2242
    Keywords: Key words Hordeum ; Barley ; RAPD ; Variability ; Phylogeny ; DNA analyses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The genetic variation of 102 natural populations of wild barley growing in Spain was assessed using RAPDs (random amplified polymorphic DNA). The plant material included the annual species H. marinum subsp. marinum (22 populations) and subsp. gussoneanum (14), H. murinum subsp. murinum (7) and subsp. leporinum (35), and the perennial species H. bulbosum (17) and H. secalinum (7). Ten of the tested 64 arbitrary 10-mer primers amplified polymorphic DNA in all taxonomic units. Analyses was performed within and between populations, species and subspecies. The primers gave a total of 250 RAPD products. The level of polymorphism varied between taxonomic units depending on the primers employed and the plant reproductive system. In general, the most variable were the allogamous species H. secalinum and H. bulbosum and the autogamous H. marinum subsp. marinum. Among the amplified bands, 69 (27%) were shared by at least two different taxonomic units. The remaining bands were specific. The results demonstrate differences in the degree of similarity between taxonomic units. Jaccard’s similarity coefficients for interval measure within and between populations were used to produce a cluster diagram using the unweighted pair-group method (UPGMA). The different populations of the species and subspecies of Hordeum fell into three groups. The first group contained the populations belonging to both subspecies of H. marinum, plus those of H. secalinum. The populations of H. marinum subsp. gussoneanum were very closely associated. Those of H. marinum subsp. marinum were grouped in a broad cluster. The second group, occupying the innermost position of the tree, was very closely associated with the populations of both subspecies of H. murinum. The third branch segregated H. bulbosum. A series of RAPD markers were investigated by cleaving the amplified products of the same size with restriction endonucleases that recognize targets of 4- or 6-bp. The production of equivalent fragments following cleavage by the same enzyme would seem to demonstrate their homology in samples from different individuals, populations or taxonomic units.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050715
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Induction of a β-phaseolin promoter by exogenous abscisic acid in tobacco: developmental regulation and modulation by external sucrose and Ca2+ ions (1998)
    Springer
    Plant molecular biology 37 (1998), S. 265-274 
    Details
    ISSN: 1573-5028
    Keywords: abscisic acid ; gene regulation ; phaseolin ; storage proteins ; tobacco
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Phaseolin genes are induced by unidentified factors at the onset of seed maturation in embryos of both Phaseolus and tobacco. We show that in tobacco, expression of a β-phaseolin promoter-GUS (PHSβ-uidA) mRNA and the corresponding GUS activity, could be induced by abscisic acid (ABA). The effect paralleled an increase in the amount of endogenous 12S globulin (Glb12S) mRNA. In contrast, ABA repressed the expression of isocitrate lyase (ll9) mRNA. The responses of PHSβ-uidA and Glb12S to ABA declined markedly between 11 and 13 DAF, indicating that they are developmentally regulated. We also show evidence that the ABA response of PHSβ-uidA can be modulated by the external concentrations of sucrose and Ca2+ ion. These compounds inhibited the response if added to the medium separately, in the concentration ranges of 80-200 mM for sucrose and 0.76–20 mM for CaCl2. However, the presence of both sucrose and CaCl2 restored the ABA response to 20–40% of the maximum value measured in sucrose- and CaCl2-free media. These results suggest that ABA induction of β-phaseolin gene expression is modulated by developmental signals and by the external supply of sucrose and calcium to the embryos.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005999725715
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Analysis of the genetic diversity of wild Spanish populations of the genusHordeum through the study of their endosperm proteins (1999)
    Springer
    Plant systematics and evolution 214 (1999), S. 235-249 
    Details
    ISSN: 1615-6110
    Keywords: Poaceae ; Hordeum ; Barley ; endosperm proteins ; variability ; phylogeny
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A study was made of the genetic variability of 101 barley populations belonging to the four, wild, Spanish species of the genusHordeum (the autogamousH. marinum subspp.marinum andgussoneanum, andH. murinum subspp.murinum andleporinum, plus the allogamous speciesH. bulbosum andH. secalinum). Electrophoresis of endosperm proteins was performed using a large number of individuals from each population sampled, in order to determine intra- and interpopulational variation. The distribution of variability observed by population and taxonomic unit, is closely related to the breeding system.Hordeum bulbosum showed the greatest intrapopulational variability andH. marinum subsp.gussoneanum the least. In contrast to the autogamous species, the allogamous species showed low levels of interpopulational variation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985742
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Field Water Drainage under Traditional and Improved Irrigation Schedules for Corn in Central Spain (1999)
    Springer
    Soil Science Society of America journal 63 (1999), S. 1811-1816 
    Details
    ISSN: 1435-0661
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Zea mays L.)–wheat (Triticum aestivum L.)–corn–oat (Avena sativa L.) crop rotation common in the area. Crop water consumption and D were estimated with the zero flux plane–water balance equation. The improved irrigation schedule, only applied to the two corn crops, saved 170 mm of irrigation water, or 15% of the irrigation water used for traditionally irrigated plots. Drainage during the experiment was reduced from 235 mm in traditional to 119 mm in improved treatment. The cumulative grain yield for subsequent crops was unaffected by the irrigation treatments (31230 ± 3900 vs. 30770 ± 3430 kg ha−1). Grouped across the 4-yr period, variation of evapotranspiration (ET) between individually instrumented sites (4%) was lower than the variation of D (30%). When daily ET and D estimates were grouped for cropping and intercultivation periods and compared with changes in water storage added to irrigation and rainfall, the mass balance principle was satisfied. Experienced corn farmers may apply this improved schedule by assessing soil depth of wetting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Control of nitrate pollution by application of controlled release fertilizer (CRF), compost and an optimized irrigation system (1995)
    Springer
    Nutrient cycling in agroecosystems 43 (1995), S. 191-195 
    Details
    ISSN: 1573-0867
    Keywords: nitrate leaching ; pollution ; fertilizer ; irrigation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A nitrogenous controlled release fertilizer (Floranid 32) and a treatment of municipal organic waste compost were tested under two irrigation managements (conventional and ET-adjusted irrigation rates) with the aim of assessing risk of nitrate leaching to the aquifer. A check without N fertilizer was introduced. The experiment was carried out at La Poveda Field Station (30 km SE Madrid, Spain) in alluvial soils with water table depth at 4 m and under maize cropping. The experiment was laid out in a randomized complete block design with three replications, allocating 12 plots to each irrigation management. Although N fertilizer rate (150 kg ha−1) was reduced at half as related to a previous experiment, no difference in grain yields was observed. This result relates to a high content of soil-N. Floranid showed promising results in controlling N-leaching in comparison with urea that exhibited an accelerated rate of N release which finally determines low use of N by the plant and marked NO3 − leaching. Treatment of municipal waste compost showed NO3 − concentrations in the soil water solution of similar values as those of urea at 140 cm. ET-adjusted irrigation showed no drainage during the corn growing season and lower NO3 − concentrations in the soil water solution which could indicate a general lower rate of N solubilization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00747701
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    A CMOS Hearing Aid Device (1999)
    Springer
    Analog integrated circuits and signal processing 21 (1999), S. 163-172 
    Details
    ISSN: 1573-1979
    Keywords: analog integrated circuits ; CMOS amplifiers and filters ; AGCs ; hearing aid device
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In this paper a CMOS Hearing Aid Device is described. The system is composed of a low-distortion low-noise preamplifier, an automatic gain control (AGC), a fully programmable switched-capacitor filter (equalizer), and a control system. The device has been fabricated in a 1.2 μm CMOS analog process. The dynamic range of the device is 55 dB while the harmonic distortion components are below −50 dB. Experimental results show the feasibility of the proposed architecture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008373824380
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Irrigation water rates in Mendoza's decentralized irrigation administration (1997)
    Springer
    Irrigation and drainage systems 12 (1997), S. 67-83 
    Details
    ISSN: 1573-0654
    Keywords: water ; users association ; water charges ; budget ; participation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The cost of irrigation water to the farmers in Mendoza Province consists of three components; canal cleaning by the farmer, a water charge to their Users Association (UA) and a water charge to the provincial Irrigation Department (DGI). The total cost of irrigation water shows large differences when the area of the UA is taken into consideration: farmers in smaller associations pay considerably more than those in large units. This is the case for all three groups of costs. The annual budgets of 31 UA's were analyzed with respect to 19 budget items prescribed by DGI. Several of these items contain a low percentage of the total budget. Further, they make participation of users during the annual meeting in which the budget is discussed and approved unnecessary difficult. We recommend to reduce the number of budget items to 7. Because of low collection levels (average 64%) the UA's spend a major part of their income on recurrent costs like salaries. As a result little is spent on maintenance and improvement of the system, creating dissatisfaction with the paying water users. Thus. a vicious circle needs to be broken about the deterioration of the system, dissatisfaction of users, less participation in the running of the Association and further deterioration. Recent experience shows that the discontinuation of flow to non-paying users in combination with improved water delivery services by the UA breaks the circle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005940731031
    Location Call Number Expected 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...