Clipping Wings
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Pitching Equilibrium, Wing Span and Tail Span in a Gliding Harris' Hawk, Parabuteo Unicinctus
1. The centre of area of the wings of a Harris' hawk gliding freely in a wind tunnel moved forward 0.09 wing chord lengths when the hawk increased its wing span from 0.68 to 1.07 m. The movement of the centre of area probably produces a positive pitching moment that, if unopposed, would cause the bird's head to rise. The tail remained folded until wing span reached 87 % of maximum and then bega...
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This is a critique of Earp, Sandberg and Savulescu's argument in support of a possible future neuromodulation of love and love-related relationships. I argue that, contrary to what is suggested by Earp, Sandberg and Savulescu, we do have good reason to be concerned about that possibility as well as about the medicalization of love that its pursuit would bring about.
متن کاملClipping the Wings of Glioblastoma: Modulation of WNT as a Novel Therapeutic Strategy.
Glioblastoma (GBM) is the most malignant brain tumor and has a dismal prognosis. Aberrant WNT signaling is known to promote glioma cell growth and dissemination and resistance to conventional radio- and chemotherapy. Moreover, a population of cancer stem-like cells that promote glioma growth and recurrence are strongly dependent on WNT signaling. Here, we discuss the role and mechanisms of aber...
متن کاملNo effect of marking flies either by nail polish on scutellum or by wing clipping on mating success in
c) placing a small drop of nail polish on scutellum (Singh and Chatterjee, 1985) d) placing a small mark of ink on both wings (Zouros and D'Entremont, 1980) e) fles had been coloured with either pink or blue fluorescent dust (Markow, 1980) and f) flies were fed red and green coloured food (Wu et al., 1995). In these studies, no effect of marking was found on the performance of fles or the outco...
متن کاملExperimental Investigation of Asymmetry of Vortex Flow Over Single Delta Wings
It is generally believed that, on slender delta wings, there is a critical state at which strong asymmetric vortices are found along the leading edge on the lee-side of the delta wing. These asymmetric vortices can lead to high lateral forces even when slender delta wing is at the zero angle of yaw. Some experimental studies reported recently, cast considerable doubt as to the validity of the a...
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تاریخ انتشار 2013