龙卷风 发表于 2025-3-25 03:32:08
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,Abundance and Species Distribution of Bird Communities in Ritchie’s Archipelago, Andaman and Nicoba思想 发表于 2025-3-25 19:22:38
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Ecology of Faunal Communities on the Andaman and Nicobar IslandsAncillary 发表于 2025-3-26 03:36:16
Ecology of Faunal Communities on the Andaman and Nicobar Islands978-3-642-28335-2Abrade 发表于 2025-3-26 07:05:34
Bringing Down the Rear: The Decline in the Relative Economic Position of Single-Mother FamiliesPoverty has gradually become an issue of particular concern to women because families composed of single mothers and their children are the fastest-growing segment in the poverty population. By 1978, 49% of all families in poverty were headed by a single woman, and 56% of all children (under age 18) in poverty were in single-mother families.小画像 发表于 2025-3-26 12:23:34
Singularities of short linear waves on the plane,The subject of the paper is the geometrical optics of short linear waves on plane. We describe perestroikas of momentary fronts and scattering of rays when the light hypersurface has generic conical singularities. They appear if the waves propagate in a nonhomogeneous anisotropic medium and are controlled by a hyperbolic variational principle.Antigen 发表于 2025-3-26 13:02:49
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