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Rapoport (1946), Kaplan (1948), and Auerbach (1949) found formaldehyde highly mutagenic for Drosophila when administered with its food. Auerbach (1949), however, observed negative results when Drosophila was exposed to formaldehyde vapor and concluded that formaldehyde acts indirectly through chemical changes brought about in food constituents. Dickey, Cleland, and Lotz (1949) found formaldehyd...

The Chinese fauna of the family Trigonalyidae Cresson, 1887, is revised, keyed and fully illustrated for the first time. Eight genera of this family (Bakeronymus Rohwer, 1922, Bareogonalos Schulz, 1907, Jezonogonalos Tsuneki, 1991, re-instated, Lycogaster Shuckard, 1841, Orthogonalys Schulz, 1905, Pseudogonalos Schulz, 1906, Taeniogonalos Schulz, 1906 and Teranishia Tsuneki, 1991) are recorded ...

More than a decade after defending his doctoral thesis, «A Circumstantial Alliance: Portugal and the United States in 1950s», Daniel Marcos publishes, with seal of Imprensa de História Contemporânea, revised updated version study dedicated to Luso-American relations between 1949 1961 - book «Between Empire NATO: America (1949-1961).»

Radically different consequences flowed from China's interaction with the global economy during two periods, from 1860 to 1949, and from 1949 to the present. From 1860 to 1949, China's economy stagnated. From 1949 to the present, China's economy grew annually from 4 to 10 percent. 'These different rates resulted from a combination of the levels of Chinese sovereignty and the nature of the globa...

Paula Suárez López*, Hiroyuki Tsuji and George Coupland 1 Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra (Cerdanyola del Vallès), 08193 Barcelona, Spain 2 Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan 3 Max Planck Institute for Plant Br...