scholarly journals Proceedings of the Siberian Department of the Section of Earth Sciences of the Russian Academy of Natural Sciences. Geology, Exploration and Development of Mineral Deposits

2019 ◽  
Keyword(s):  
Earth Sciences ◽  
Natural Sciences ◽  
Mineral Deposits ◽  
Siberian Department ◽  
Academy Of Natural Sciences ◽  
Exploration And Development

On the American Species of Lyperopherus Mots. (Coleoptera: Carabidae)

1949 ◽  
Vol 81 (9) ◽  
pp. 231-232 ◽  
Author(s):  
W. J. Brown
Keyword(s):  
United States ◽  
The United States ◽  
Natural Sciences ◽  
National Museum ◽  
United States National Museum ◽  
Comparative Zoology ◽  
Academy Of Natural Sciences

The following notes are based on the material in the Canadian National Collection and in the collections of the United States National Museum, the Museum of Comparative Zoology, and the Philadelphia Academy of Natural Sciences.In all of the three American species of Lyperopherus, the flattened side margins of the pronotum are gradually widened posteriorly to include the outer of the basal impressions. All are flightless and have the elytra widest slightly behind the middle.

scholarly journals Revolutions in the earth sciences

1999 ◽  
Vol 354 (1392) ◽  
pp. 1915-1919 ◽  
Author(s):  
Claude Allègre ◽  
Vincent Courtillot
Keyword(s):  
Earth Sciences ◽  
Quantum Mechanics ◽  
20Th Century ◽  
Plate Tectonics ◽  
Statistical Physics ◽  
Natural Sciences ◽  
Scientific Revolutions ◽  
The Earth

The 20th century has been a century of scientific revolutions for many disciplines: quantum mechanics in physics, the atomic approach in chemistry, the nonlinear revolution in mathematics, the introduction of statistical physics. The major breakthroughs in these disciplines had all occurred by about 1930. In contrast, the revolutions in the so–called natural sciences, that is in the earth sciences and in biology, waited until the last half of the century. These revolutions were indeed late, but they were no less deep and drastic, and they occurred quite suddenly. Actually, one can say that not one but three revolutions occurred in the earth sciences: in plate tectonics, planetology and the environment. They occurred essentially independently from each other, but as time passed, their effects developed, amplified and started interacting. These effects continue strongly to this day.

Academy of Natural Sciences of Philadelphia

Science ◽  
1898 ◽  
Vol 7 (179) ◽  
pp. 784-784
Author(s):  
Edward J. Nolan
Keyword(s):  
Natural Sciences ◽  
Academy Of Natural Sciences
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