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Article
Expression of the bipolar see-saw in Antarctic climate records during the last deglaciation
During the last deglaciation, climate changes over Greenland and Antarctica on millennial timescales were asynchronous. A temperature record from the Talos Dome in Antarctica confirms this asynchrony and shows...
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Article
Asynchrony of Antarctic and Greenland climate change during the last glacial period
A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast temperature changes observed in Greenland (so-called ...
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Article
Atmospheric CO2 concentration and millennial-scale climate change during the last glacial period
The analysis of air bubbles trapped in polar ice has permitted the reconstruction of past atmospheric concentrations of CO2 over various timescales, and revealed that large climate changes over tens of thousands ...
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Article
Variations in atmospheric methane concentration during the Holocene epoch
RECORDS of the variation in atmospheric methane concentration have been obtained from ice cores for the past 1,000 years and for the period 8,000–220,000 yr BP (refs 1–4), but data for the intervening period, ...
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Article
Synchronous changes in atmospheric CH4 and Greenland climate between 40 and 8 kyr BP
ICE-CORE reconstructions of atmospheric methane concentrations for the past 220 kyr have revealed large variations associated with different climatic periods1–4. But the phase relationship between climate and met...
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Article
INSULIN-LIKE GROWTH FACTORS (IGF) AND THEIR BINDING PROTEINS IN CORD SERA OF CHILEAN NEWBORNS: RELATIONSHIP TO FETAL AND PLACENTAL GROWTH.
28 term newborns (GA 38-42 weeks) were studied. 9 were small for gestational age (SGA), 6 were large and the rest were appropriate. There was no correlation of IGFs or IGFBPs with gestational age. The relation...
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Article
Use of 10Be in polar ice to trace the 11-year cycle of solar activity
A DETAILED knowledge of the history of solar magnetic activity is important in several respects. From satellite data there is increasing evidence that solar magnetic activity and solar irradiance are positivel...
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Article
Methane concentration in the glacial atmosphere was only half that of the preindustrial Holocene
Air entrapped in bubbles of cold ice has essentially the same composition as that of the atmosphere at the time of bubble formation. Measurements on ice core samples from Byrd Station (Antarctica) and Dye 3 (G...
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Autoimmune and Autonomous Toxic Goiter: Differentation and Clinical Outcome After Drug Treatment
Our own data presented in this paper are taken from investigations of a multi center prospective study*, in which the following colleagues participate: Althoff (Frankfurt), Badenhoop (Mannheim), Benker (Essen)...
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Article
Age difference between polar ice and the air trapped in its bubbles
Air entrapped in bubbles formed in cold ice has essentially the same composition as that of the atmosphere at the time of bubble formation. The analysis of dated ice samples therefore enables the history of at...
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Article
Ice core sample measurements give atmospheric CO2 content during the past 40,000 yr
Recent measurements1,2 on ice samples from Camp Century (Greenland, 77°10'N, 61°08'W), Byrd Station (Antarctica, 80°01'S, 110°31'W) and Dome C (74°40'S, 125°10'E) suggest that during the late part of the last gla...
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Article
La glycolyse anaérobie au niveau des lobes optiques isolés de l'embryon de poulet
A series ofin vitro experiments have been made on lactic acid production in anaerobiosis in the develo** optic lobes (mesencephalon) of the chick embryo. The rate of anaerobic glycolysis is relatively important...