Results 271 to 280 of about 85,724 (312)
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Transfer of Northern Hemisphere Fall-out to the Southern Hemisphere
Nature, 1966THE detonation of a low-yield nuclear device in Western China at 1900 h, October 16, 1964 (New Zealand time), was reported, and tests for barium-140 were included in our routine investigations of fall-out at Gracefield, Wellington (41° 14′ S., 174° 55′ E.), to identify debris from this test.
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On the origin of northern and southern hemisphere grasslands
Plant Ecology, 2002The origin of the grassy habit during the Eocene and the development of C4 grasses during the Miocene/Pliocene boundary are discussed before the origin of primary and secondary grassland in Eurasia and North America are discussed. A comparison shows that both Northern and Southern hemisphere primary grassland originated due to climatic changes to drier
G. J. Bredenkamp +2 more
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Northern Hemisphere circulation
Nature, 2005Air pressure at sea level during winter has decreased over the Arctic and increased in the Northern Hemisphere subtropics in recent decades, a change that has been associated with 50% of the Eurasian winter warming observed over the past 30 years, with 60% of the rainfall increase in Scotland and with 60% of the rainfall decrease in Spain1.
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The Breeding Seasons of Southern Hemisphere Birds in the Northern Hemisphere
Proceedings of the Zoological Society of London, 1938Summary.Most Southern Hemisphere birds breed in the Southern Hemisphere spring and summer. Imported specimens of most of these species change their rhythm so as to breed in the northern spring and summer in the Northern Hemisphere.Some Southern Hemisphere birds breed in the Southern Hemisphere winter (or very early spring).
John R. Baker, R. M. Ranson
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Synthesis of the Northern hemisphere of the briaranes
Tetrahedron, 2010Abstract A highly functionalized fragment corresponding to the Northern hemisphere of the briaranes has been synthesized employing a sulfonyl diene Diels–Alder reaction, oxidative desulfonylation, Eschenmoser rearrangement and Keck radical allylation.
Roderick W. Bates +2 more
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Sleep in Industrialized Settings in the Northern Hemisphere
Psychological Reports, 1985Daily time-budget activity reports on more than 30,000 individuals in urban-industrial sites in 11 countries have been published. This is an analysis of the data on sleep patterns. The amount of sleep on weekdays by men and women did not differ. On days off the amount of sleep increased by about 90 minutes with the females obtaining significantly less ...
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Frequency of fronts in the Northern Hemisphere
Archiv für Meteorologie, Geophysik und Bioklimatologie Serie A, 1951It is pointed out that there are two distinct ways of defining the frequency of the occurence of fronts. Tables and charts are presented showing frontal frequency during winter and summer for the greater part of the Northern Hemisphere, the values being based on daily synoptic charts for a period of ten years.
T. E. W. Schumann, M. P. Rooy
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Extreme Precipitation in the Northern Hemisphere
1994Atmospheric precipitation is an important natural factor determining the life conditions on the Earth. By the same time, heavy precipitation can cause a huge material damage leading to such menacing natural events as floods, landslides, mud flows, avalanches, water erosion, etc… These dangerous natural disasters can be of various duration - from a ...
Khamil Khairullin +2 more
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Seasonal Adaptation of a Northern Hemisphere Insect to the Southern Hemisphere
Journal of Economic Entomology, 1923Melitara junctolineella Hulst (Order Lepidoptera, Family Pyralidae), one of the several insects introduced into Australia in connection with the attempt biologically to control the prickly-pear pest, is indigenous to North America. In southern Texas it produces two generations annually.
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