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Biologically inspired flexible quasi-single-mode random laser: an integration of Pieris canidia butterfly wing and semiconductors.

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Quasi-periodic structures of natural biomaterial membranes have great potentials to serve as resonance cavities to generate ecological friendly optoelectronic devices with low cost. To achieve the first attempt for the illustration of the underlying principle, the Pieris canidia butterfly wing was

A simple method to discriminate diapause from non-diapause pupae in large and small white butterflies, Pieris brassicae and P. rapae crucivora.

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Differences in colour and shape have been used to discriminate diapause pupae from non-diapause pupae in butterflies. In the present study, we describe a simple discrimination method based on differences in the specific gravity of diapause and non-diapause pupae of large and small white butterflies,

Mechanical determinants of nectar-feeding energetics in butterflies: muscle mechanics, feeding geometry, and functional equivalence.

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We develop a mechanistic model for nectar feeding in butterflies that integrates the two basic components of the feeding process: the fluid dynamics of nectar flow through the food canal and the contractile mechanics of the muscular, cibarial pump. We use the model to predict the relation between

The supply of oxygen to the flight muscles of insects: a theory of tracheole physiology.

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In the flight muscles of insects, virtually every mitochondrion is in contact with or is encircled by terminal tracheoles which reach them by following the channels formed by the invaginated plasma membrane of the muscle fibres, the T-system tubules. In musca, Calliphora and Drosophila (Diptera),

[Pharmacological studies on the mechanisms of asebotoxin III-induced centrogenic pulmonary hemorrhagic edema in guinea pigs].

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Asebotoxin III (ATX-III), a diterpenoid isolated from the leaves of Asebi, Pieris japonica, was found to produce hemorrhage into the lungs when the toxin in a dose of 2-8 micrograms was injected into the lateral ventricle of guinea pigs under urethane anesthesia (0.8 g/kg, i.p.). The occurrence of

The rectal complex in the larvae of lepidoptera.

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In the so-called "cryptonephric" condition of the excretory system in insects the distal ends of the Malpighian tubules are closely applied to the rectum and enclosed with it in a special chamber, the perinephric space, separated from the rest of the body cavity by the perinephric membrane. The term

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