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Hypersonic Flow Theory
Hypersonic flow theory , Hypersonic flow theory , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
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Coevolution of Male and Female Genital Morphology in Waterfowl
Most birds have simple genitalia; males lack external genitalia and females have simple vaginas. However, male waterfowl have a phallus whose length (1.5–>40 cm) and morphological elaborations varyExpand
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Model parameter estimation from data assimilation modeling: Temporal and spatial variability of the bottom drag coefficient
Acoustic Doppler current profiler (ADCP) data collected from a moving vessel are assimilated, using the adjoint method, into a tidal model of the lower Hudson estuary with the objective of estimatingExpand
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Phylogenetic relationships of Amazonetta, Speculanas, Lophonetta, and Tachyeres: four morphologically divergent duck genera endemic to South America
We studied the phylogenetic relationships of four duck genera endemic to South America: Brazilian teal Amazonetta brasiliensis, spectacled duck Speculanas specularis, crested duck LophonettaExpand
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Endocrine Disrupters and Flavonoid Signalling
Like other stifftail ducks, lake ducks are promiscuous and boisterous in their sexual activity. One explanation for the evolution of such a long penis might be selection for its competitive advantageExpand
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Late Pleistocene colonization of South Georgia by yellow‐billed pintails pre‐dates the Last Glacial Maximum
Aim Glacial cycles had a major influence on the distribution of high-latitude species, and while genetic consequences of these cycles have been well studied in the Circumpolar North, notably fewerExpand
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Eclipsing Binary Solutions in Physical Units and Direct Distance Estimation
Opportunities for extraction of distances and temperatures from eclipsing binary light curves that are in standard flux units, as opposed to traditional arbitrary units, are examined. BenefitsExpand
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V781 Tauri: a W Ursae Majoris binary with decreasing period
We analyze light curves of the W UMa type eclipsing binary V781 Tauri from three epochs and radial velocity curves from two epochs simultaneously, including previously unpublished B and V data. TheExpand
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Implications of introgression for wildlife translocations: the case of North American martens
The evolutionary consequences of natural introgression provide a rare opportunity to retrospectively evaluate how the introduction of exotics or genetic rescue efforts may impact endemic faunas.Expand
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