A flower-shaped micromotor driven by gliding bacteria named Mycoplasma mobile (M. mobile) has been developed by using two-photon microfabrication. This micromotor is autonomously rotated by the collisions of M. mobiles gliding randomly on a substrate. The flower-shaped rotor is derived from the unique motility of M. mobile. We examined the motility characteristics of M. mobile using walls with ...

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This paper reviews the flight mechanics and control of birds and bird-size aircraft. It is intended to fill a niche in the current survey literature which focuses primarily on the aerodynamics, flight dynamics and control of insect scale flight. We review the flight mechanics from first principles and summarize some recent results on the stability and control of birds and bird-scale aircraft. B...

1. The equilibrium gliding performance of a bird is described by the relationship between sinking speed (VB) and air speed (V). When V3 is plotted against V, the points fall in a 'performance area' because the wing span is changed during gliding. 2. The lowest V, for each V in the performance area defines a 'maximum performance curve'. This curve can be predicted by a mathematical model that ch...

The distribution of acetone-soluble (neutral glycolipid) and acetone-insoluble (phospholipid isoprenoids) lipids in oral isolates of gram-negative gliding bacteria of the genus Capnocytophaga was compared with those in a non-host-related gliding bacterium, Sporocytophaga myxococcoides. The acetone-soluble material accounted for 34 to 55% of the extracted lipids; the remainder was acetone-insolu...

although the increase in the number of core sutures during flexor tendon repair increases the tensile strength of the repair, both increased handling at the time of repair and increased bulk at the repair site have been hypothesized as affecting clinical outcomes by increasing gliding resistance. the purpose of our study was to assess whether increasing the number of core sutures from two stran...

Birds face exceptionally high energy demands during their flight. One visible feature of some species is alternating between flapping and gliding, which should allow them to save energy. To date, there no empirical evidence an energetic benefit this. understand the physiology behind strategy, we equipped hand-raised Northern Bald Ibises ( Geronticus eremita ) with data loggers human-guided migr...

JB00499-15 (ver 2) 1 Journal of Bacteriology; Research Report (Molecular and Cellular Biology) 2 3 Title: Gliding direction of Mycoplasma mobile 4 Authors: Hanako Morio, Taishi Kasai* & Makoto Miyata 5 6 Laboratory: Graduate School of Science and OCU Advanced Research Institute 7 for Natural Science and Technology (OCARINA), Osaka City University, 8 Sumiyoshi-ku, Japan 9 Address correspondence ...

We derive an expression of the core traction contribution to the dislocation elastic energy within linear anisotropic elasticity theory using the sextic formalism. With this contribution, the elastic energy is a state variable consistent with the work of the Peach-Koehler forces. This contribution needs also to be considered when extracting from atomic simulations core energies. The core energi...