Library

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
    Heavy Metal and Selenium Levels in Franklin's Gull (Larus pipixcan Parents and Their Eggs (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 487-491 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Lead, cadmium, mercury, chromium, selenium, and manganese concentrations were measured in the breast feathers of 25 pairs of Franklin's Gulls (Larus pipixcan) and in their eggs from a breeding colony at Agassiz National Wildlife Refuge in Northwestern Minnesota. Metal concentrations in eggs represent metals sequestered in the egg by females at the time of egg formation; while metal concentrations in parents represent concentrations of metals in the blood supply at the time of feather formation. There were no significant sexual differences in metal concentrations in feathers, assuming the male to be larger of each pair, but there were significant differences between the concentrations of metals in parents and their eggs. Eggs had significantly higher concentrations of selenium and chromium, but significantly lower concentrations of all other metals than the feathers of their parents. There were few significant correlations among metal concentrations within the egg or within the feather of females, but there were correlations for the feathers of males. Lead and cadmium in feathers were positively correlated for both males and females. Chromium concentrations in eggs were generally higher than reported in the literature. The concentrations in eggs and the feathers of females were positively correlated for mercury, and negatively correlated for chromium and manganese.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900067
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Thickness dependence of the critical solution temperature of hydrogen in Pd films (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 3125-3130 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The isotherms of very thin PdHx films (60 A(ring)〈d〈600 A(ring)) have been determined below room temperature by equilibrium potential measurements. One finds that the critical temperature Tc is lowered when the film thickness decreases: for the 60-A(ring) film Tc would be near 173 K. This marked drop of Tc is attributed to clamping effects of the sample on the substrate, which decreases the effective H–H interaction and favors short-range coherency effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337724
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Heavy Metal and Selenium Concentrations in Feathers of Egrets from Bali and Sulawesi, Indonesia (1997)
    Springer
    Archives of environmental contamination and toxicology 32 (1997), S. 217-221 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Herons and egrets are ideal organisms to use as indicators of heavy metal exposure in an ecosystem because different species feed at different levels of the food chain and live in both coastal and inland habitats. This paper reports on the concentration of heavy metals and selenium in the feathers of cattle egrets Bubulcus ibis that were examined from nesting and roosting sites in Bali and Sulawesi, Indonesia, and in feathers of little egrets Egretta garzetta and intermediate egrets E. intermedia from the same colony in Bali. Mercury and manganese concentrations were significantly higher in cattle egrets from Bali compared to Sulawesi, but otherwise there were no significant differences. There were significant differences in lead, cadmium and mercury among the three egret species nesting on Bali: 1) the cadmium and mercury concentrations related to size and trophic level (insectivorous cattle egrets had the lowest concentrations, fish-eating intermediate egrets had the highest concentrations), and 2) cattle egrets had significantly lower concentrations of lead than the other two species. For cattle egrets, secondary flight feathers had significantly higher levels of cadmium and mercury, and lower levels of manganese, than mixed breast and tertiary feathers, reflecting temporal differences in exposure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900178
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Nucleon-nucleon forces in a nonrelativistic quark model (1986)
    Springer
    Czechoslovak journal of physics 36 (1986), S. 321-324 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Conclusion We have considered allNN-partial waves simultaneously. The central part of the one gluon exchange is always repulsive, the tensor part can be neglected and the spin-orbit part is too weak for this choice of parameters. An additional colourless VMEP potential allows us to reproduce the experimental data. However, this potential cannot be related to a long range one-pion exchange potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01597168
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Vergelijkend overzicht van de immigratie en blijvende vestiging van Javanen en Britsch-Indiërs in Suriname (1928)
    Springer
    De economist 77 (1928), S. 422-445 
    Details
    ISSN: 1572-9982
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02203853
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    facet.materialart.
    Unknown
    Gender Differences in Smoking Behavior in a University Workplace (1989)
    New York, N.Y. : Periodicals Archive Online (PAO)
    Sex Roles. 20:9/10 (1989:May) 523 
    Details
    ISSN: 0360-0025
    Topics: Archaeology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:v531-1989-020-09-000004
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Heavy metal and selenium concentrations in eggs of herring gulls (Larus argentatus): Temporal differences from 1989 to 1994 (1995)
    Springer
    Archives of environmental contamination and toxicology 29 (1995), S. 192-197 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Concentrations of five metals and selenium in the eggs of herring gulls (Larus argentatus) were examined at a breeding colony on western Long Island, New York from 1989 to 1994. There were significant yearly differences in lead, cadmium, mercury, selenium, chromium, and manganese. Chromium and cadmium were significantly higher in 1993 compared to the other years. Lead levels were highest in 1989, and were uniformly lower in the succeeding four years. Manganese showed no clear pattern. Selenium concentrations decreased from 1991 through 1994, whereas mercury increased from 1992 through 1994. Generally, concentrations of cadmium were similar to those reported for avian eggs from elsewhere; mercury and lead were within the range, but were at the high end; and chromium concentrations were higher than elsewhere. For all years combined, there was a positive correlation between lead and cadmium concentrations and between chromium and manganese, and a negative correlation between lead and mercury concentrations. In conclusion, egg contents can be used to monitor heavy metal concentrations, but consecutive years must be examined because concentrations can vary significantly among years. Ideally, data are needed for more than three years before trends, or lack thereof, can be determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212970
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Heavy metal and selenium levels in Franklin's Gull (Larus pipixcan) parents and their eggs (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 487-491 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Lead, cadmium, mercury, chromium, selenium, and manganese concentrations were measured in the breast feathers of 25 pairs of Franklin's Gulls (Larus pipixcan) and in their eggs from a breeding colony at Agassiz National Wildlife Refuge in Northwestern Minnesota. Metal concentrations in eggs represent metals sequestered in the egg by females at the time of egg formation; while metal concentrations in parents represent concentrations of metals in the blood supply at the time of feather formation. There were no significant sexual differences in metal concentrations in feathers, assuming the male to be larger of each pair, but there were significant differences between the concentrations of metals in parents and their eggs. Eggs had significantly higher concentrations of selenium and chromium, but significantly lower concentrations of all other metals than the feathers of their parents. There were few significant correlations among metal concentrations within the egg or within the feather of females, but there were correlations for the feathers of males. Lead and cadmium in feathers were positively correlated for both males and females. Chromium concentrations in eggs were generally higher than reported in the literature. The concentrations in eggs and the feathers of females were positively correlated for mercury, and negatively correlated for chromium and manganese.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213400
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Trace Elements in Egg Contents and Egg Shells of Slider Turtles (Trachemys scripta) from the Savannah River Site (1998)
    Springer
    Archives of environmental contamination and toxicology 34 (1998), S. 382-386 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. In this paper we examine the levels of trace elements in the egg contents and egg shells of slider turtles (Trachemys scripta) from the Savannah River Site, near Aiken, South Carolina. Trace elements have seldom been examined in the tissues or eggs of reptiles, although some turtles and large snakes occupy a high trophic level. Lead, mercury, cadmium, selenium, chromium, and manganese levels were examined in one egg and its egg shell collected from each of 16 females that laid in late May and June 1996. We were interested in determining background levels, whether certain metals were sequestered in the egg shells, and whether levels were higher in contents or shells. Concentrations were higher in egg contents than in shells for lead, mercury, and selenium, while chromium was higher in the shell. There were no differences for cadmium and manganese. Compared to eggs from other reptiles, levels in slider turtles were generally similar for cadmium and selenium, lower for chromium and lead, and higher for manganese.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900334
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Effects of lead on growth and feeding behavior of young common terns (Sterna hirundo) (1988)
    Springer
    Archives of environmental contamination and toxicology 17 (1988), S. 513-517 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Common tern,Sterna hirundo, chicks injected with lead (Pb) nitrate (IP) showed slower weight gain than controls, due to reduced assimilation efficiency, rather than reduced food intake. The ability to manipulate fish, involving complex motor coordination of head and neck, showed impairment, while the ability to locate and seize fish did not. The study demonstrates that Pb can selectively impair certain behavioral functions of feeding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01055517
    Library Location Call Number Volume/Issue/Year 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...