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
Filter
Collection
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Effects of lanthanum and mixtures of rare earths on ammonium oxidation and mineralization of nitrogen in soil (2001)
    Oxford, UK : Blackwell Science Ltd
    European journal of soil science 52 (2001), S. 0 
    Details
    ISSN: 1365-2389
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Rare earths are applied widely in Chinese agriculture to improve crop nutrition and incidentally in fertilizers, yet little is known of their effect on the biological functioning of the soil. We have studied the effects of lanthanum and of mixtures of rare earths on the potential ammonium oxidation and nitrogen mineralization in soil by incubation experiments in the laboratory. The no-observed-effect and median effective concentrations of the rare earths on these two processes are reported, and their corresponding mechanisms are discussed. For mixtures, the no-observed-effect concentrations relating to potential ammonium oxidation and N mineralization were at 393 and 373 mg rare earths kg−1 soil, respectively, and their median effective concentrations were at 1576 and 1108 mg kg−1 soil, respectively. When lanthanum was applied alone, the no-observed-effect concentrations relating to potential ammonium oxidation and N mineralization were at 432 and 443 mg La kg−1 soil, respectively, and their median effective concentrations were at 18 212 and 1237 mg kg−1 soil, respectively. Therefore, the influence of mixtures of rare earths on potential ammonium oxidation or on N mineralization was slightly stronger in comparison with that of lanthanum. Mineralization of nitrogen is apparently more sensitive to the stress caused by rare earths than ammonium oxidation. We conclude that the influence of individual rare earths in the mixtures on the above two processes can be additive and that the present dosage of mixed rare earths (〈 230 g ha−1 year−1 or 0.15 mg kg−1 soil year−1) currently applied in China can hardly affect the potential ammonium oxidation and N mineralization in the soil even over a long period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2389.2001.00385.x
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Separation and detection of selenium-containing proteins in human serum (2000)
    Springer
    Fresenius' journal of analytical chemistry 367 (2000), S. 60-64 
    Details
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Selenium-containing proteins or their subunits in human serum were separated and detected by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and the amount of selenium in each protein band was determined by HPLC with a fluorescence detector after derivatization with 2,4-diaminonaphthalene (DAN). This procedure provides a detection limit of 0.06 ng in a linear range of 0–1.5 ng. A protein is defined as a selenium-containing protein if its mean Se content exceeds twice the detection limit (0.12 ng) and twice the standard deviation of three replicates in sample determination. At least 4 selenium-containing bands with apparent molecular masses of 57–74, 46–56, 40–42 and 21–22 kDa could be detected from human serum collected from 4 volunteers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002160051599
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Fate of urea-15N in a soil-wheat system as influenced by urease inhibitor hydroquinone and nitrification inhibitor dicyandiamide (2000)
    Springer
    Plant and soil 220 (2000), S. 261-270 
    Details
    ISSN: 1573-5036
    Keywords: dicyandiamide ; gaseous N losses ; hydroquinone ; nitrous oxide ; spring wheat ; urea-15N
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract By applying labeled urea into a loamy meadow brown soil, a pot experiment with spring wheat as test crop was carried out. The results showed that at the end of this experiment, the plant recovery, the soil recovery and the total loss of applied urea 15N was 17.7–23.7%, 43.7–56.3% and 20.0–36.8%, respectively. 15N recovery by wheat grain in any treatment varied within a range of 9.0–14.7% of the applied 15N. A combined application of hydroquinone (HQ) and dicyandiamide (DCD) gave the lowest loss and the highest recoveries in both the plant and soil, while applying HQ or DCD alone had less effect on them. During the whole period of wheat growth, HQ+DCD induced an increasing 15N uptake by plant, and even promoted the translocation of absorbed 15N from stem to grain. In the presence of inhibitors, organic plus chemically fixed 15N occupied a large portion of soil 15N recovery at maturity stage of wheat growth (34.3–50.6%, in contrast to 9.9% in the absence of inhibitors), and DCD and DCD+HQ could remarkably reduce the remaining soil (NO3 -+NO2 -)-15N. In this pot experiment, the leaching loss of applied 15N was excluded, and hence, the gaseous loss was considered as the main part of the 15N loss. Regarding N loss, N2O flux only occupied a very small part, and its main part was other gaseous N losses. DCD and DCD+HQ retarded N2O flux from the soil-wheat system after treatment with urea and reduced the total N2O flux during the whole period of wheat growth. Treatment with both inhibitors had much lower gaseous N losses than that with HQ or DCD alone. Hence, a proper combination application of HQ and DCD is an efficient way to improve urea-N efficiency and crop quality, while decreasing its loss to the environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004715827085
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Rare Earth Elements and Other Metals in Atmospheric Particulate Matter in the Western Part of The Netherlands (2000)
    Springer
    Water, air & soil pollution 121 (2000), S. 109-118 
    Details
    ISSN: 1573-2932
    Keywords: atmospheric particulate matter ; metals ; rare earth elements
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Atmospheric particulate matter (APM) wascollected in Delft, in the western part of theNetherlands, on micro-quartz glass fibre filters fromJuly to September, 1997. The concentrations of rareearth elements (REE) and 9 other metals (Cd, Pb, Fe,V, Ti, Mg, Ca, Na and Al) in the APM were determinedby Inductively Coupled Plasma Mass Spectrometry(ICP-MS) and Inductively Coupled Plasma-AtomicEmission Spectrometry (ICP-AES). The total REE(ΣREE) concentration, light-REE (LREE, includingSc, La, Ce, Pr, Nd, Sm and Eu) concentration, andheavy-REE (HREE, including Gd, Tb, Dy, Ho, Er, Tm, Yb,Lu and Y) concentrations were 0.22–33.0; 0.21–30.68;and 0.01–2.32 ng m-3, respectively. The ratio ofLREE to HREE ranged from 6.37 to 33.58; the ratio ofLREE to ΣREE was 0.86–0.97, the average being 0.90; and the ratio of HREE to ΣREE was0.03–0.14, with an average of 0.1. The variation ofthe ratio of LREE to ΣREE and HREE to ΣREEwas small. The La to Ce, and La to Sm ratios variedconsiderably i.e. 0.5–4.38 and 4.33–71.42respectively. The variation in concentrations of REEand other metals observed was dependent upon the winddirection and consequently on prevailingmeteorological conditions and anthropogenic activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005293131518
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    facet.materialart.
    Unknown
    Heavy mineral analysis and detrital U-Pb ages of the intracontinental Paleo-Yangzte basin, eastern margin of Tibetan Plateau (2018)
    PANGAEA
    In:  Supplement to: Deng, Bin; Chew, David M; Jiang, Lei; Mark, Chris; Cogné, Nathan; Wang, Zijian; Liu, Shugen (2018): Heavy mineral analysis and detrital U-Pb ages of the intracontinental Paleo-Yangzte basin: Implications for a transcontinental source-to-sink system during Late Cretaceous time. Bulletin of the Geological Society of America, 130(11-12), 2087-2109, https://doi.org/10.1130/B32037.1
    Details
    Publication Date: 2023-01-13
    Description: The Paleo-Yangtze basin connected the Sichuan, Xichang and Chuxiong basins during the Late Mesozoic to Early Cenozoic. The Paleo-Yangtze basin subsequently fragmented later in the Cenozoic which makes it challenging to decipher its provenance shifts and the exhumation of the surrounding hinterlands. 47 Heavy mineral analyses combined with detrital (16 apatite, 8 rutile and 8 zircon) U-Pb dating were employed to elucidate the stratigraphic signatures and exhumation patterns along the eastern margin of the Tibetan Plateau during the Upper Cretaceous to Paleogene. Two key horizons have been identified across these basins based on their detrital mineralogy: a garnet-rich horizon within the southern Sichuan basin, and garnet-poor sections in the Xichang and Chuxiong basins. Furthermore, there is a distinct increase in GZi (garnet-zircon) and ATi (apatite-tourmaline) indices in the Upper Cretaceous Gaokan Formation in the Sichuan basin, indicating increased sediment input from metamorphic and granitic sources as a result of enhanced uplift and exhumation during the Late Cretaceous. A subsequent decrease in these indices in the Sichuan Basin during the Early Paleogene is attributed to the tectonic quiescence of the western Yangtze region during the Early Cenozoic. It should be noted that a contemporaneous decrease in ATi and RZi indices in both the Xichang and Chuxiong basins sections is observed from the Upper Cretaceous to the Paleogene. Detrital apatite, rutile and zircon U-Pb ages from the Sichuan, Xichang and Chuxiong basins share similar characteristics, and the zircon U-Pb data are dominated by age peaks from the Neoarchean to Early Paleoproterozoic, Late Paleoproterozoic, Neoproterozoic, Late Cambrian to Devonian and Late Permian to Triassic. These data indicate a dominant source from the northwestern and northern Yangtze areas and the region around the Kangdian rift, consistent with predominant SE- and SW-directed palaeocurrents in these basins. We thus argue that detritus derived from the northwestern and northern Yangtze areas and Kangdian rift region fed the basins located on the western Yangtze block throughout Late Cretaceous to Early Paleogene times. The Lanping-Simao and Khorat basins on the Indo-China block were also fed by these sedimentary source regions, indicating major transcontinental drainage across the western Yangtze block.
    Keywords: MULT; Multiple investigations; Paleo_Yangtze_Basin
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    Heavy mineral analysis and detrital U-Pb ages of detrital apatite (2018)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: Age, mineral; Age, standard deviation; Error, relative; Lead-206/Uranium-238, error; Lead-206/Uranium-238 ratio; Lead-207/Lead-206, error; Lead-207/Lead-206 ratio; Lead-207/Uranium-235, error; Lead-207/Uranium-235 ratio; MULT; Multiple investigations; Paleo_Yangtze_Basin; Proportion; Sample code/label; Uranium-238/Lead-206, error; Uranium-238/Lead-206 ratio
    Type: Dataset
    Format: text/tab-separated-values, 5480 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    Heavy mineral analysis and detrital U-Pb ages of detrital rutile (2018)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: Age, mineral; Age, standard deviation; Error, relative; Lead-206/Uranium-238, error; Lead-206/Uranium-238 ratio; Lead-207/Lead-206, error; Lead-207/Lead-206 ratio; Lead-207/Uranium-235, error; Lead-207/Uranium-235 ratio; MULT; Multiple investigations; Paleo_Yangtze_Basin; Proportion; Sample code/label; Sample code/label 2; Uranium-238/Lead-206, error; Uranium-238/Lead-206 ratio
    Type: Dataset
    Format: text/tab-separated-values, 5590 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    Heavy mineral analysis and detrital U-Pb ages of detrital zircon (2018)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: Age, mineral; Age, standard deviation; Error, relative; Lead-206/Uranium-238, error; Lead-206/Uranium-238 ratio; Lead-207/Lead-206, error; Lead-207/Lead-206 ratio; Lead-207/Uranium-235, error; Lead-207/Uranium-235 ratio; MULT; Multiple investigations; Paleo_Yangtze_Basin; Proportion; Sample code/label; Sample code/label 2; Uranium-238/Lead-206, error; Uranium-238/Lead-206 ratio
    Type: Dataset
    Format: text/tab-separated-values, 8715 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    Toxicity of pentachlorophenol to native aquatic species in the Yangtze River (2011)
    Springer
    Details
    Publication Date: 2011-09-01
    Print ISSN: 0944-1344
    Electronic ISSN: 1614-7499
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Accumulation of Rare Earth Elements in Corn after Agricultural Application (2001)
    Wiley
    Details
    Publication Date: 2001-01-01
    Print ISSN: 0047-2425
    Electronic ISSN: 1537-2537
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...