amphibian
发表于 2025-3-26 21:45:50
system with some built-in symmetry. Should one expect periodic motions which somehow reflect this symmetry? And how would periodicity harmonize with symmetry? Probing into these questions leads from dynamics to topology, algebra, singularity theory, and to many applications. Within a global approac
Optimum
发表于 2025-3-27 04:29:01
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heirloom
发表于 2025-3-27 06:21:05
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消毒
发表于 2025-3-27 11:34:15
David Simpsonents; (2) radiation-events; (3) spreading-events; (4) extinction-events with stepwise or/and contemporaneous, rapid extinctions..Probable causes for global bio-events are (1) cosmic causes, such as (1a) changes caused by the revolution of the solar‘s system within the Galaxy and (1b) impact of cosmi
NUL
发表于 2025-3-27 15:45:19
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Mystic
发表于 2025-3-27 18:04:43
David Simpsonric clades, and punctualistic (anagenetic) changes operating on suprageneric levels. Anagenetic characteristics, such as loss of bithecae and reduction of first order stipes (progressive atrophies from quadriradiate, through triradiate to biradiate organizational schemes) are achieved polyphyletical
放牧
发表于 2025-3-28 00:29:50
David Simpsonric clades, and punctualistic (anagenetic) changes operating on suprageneric levels. Anagenetic characteristics, such as loss of bithecae and reduction of first order stipes (progressive atrophies from quadriradiate, through triradiate to biradiate organizational schemes) are achieved polyphyletical
gait-cycle
发表于 2025-3-28 05:23:25
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Decimate
发表于 2025-3-28 07:55:51
David Simpsonntage of the ecostratigraphic approach in our work. This means that we will carefully collect, stratum by stratum, data about the stratigraphic ranges of the individual taxa within individual community groups, biofacies narrowly construed, as opposed to the all too customary habit of lumping taxa fr
objection
发表于 2025-3-28 13:37:54
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