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Two new species of Geoplaninae, Pasipha backesi Leal-Zanchet, Rossi & Seitenfus, sp. nov. and P. brevilineata LealZanchet, Rossi & Alvarenga, sp. nov., from southern Brazil are described herein. The two new sympatric species can be distinguished from each other by differences in colour pattern and the copulatory apparatus, especially regarding the prostatic(More)
In the last decade, the development of theoretical methods has allowed chemists to reproduce and explain almost all of the experimental data associated with elementary atom plus diatom collisions. However, there are still a few examples where theory cannot account yet for experimental results. This is the case for the preferential population of one of the(More)
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