منابع مشابه
The Feathered Clarinet Reed
In this research, a method previously applied to improve a digital simulation of the avian syrinx is adapted to the geometry of the clarinet reed. The clarinet model is studied with particular attention to the case when the reed beats again the lay of the mouthpiece, closing off air flow to the bore once each period. In place of the standard reed table which gives steady-state volume flow as a ...
متن کاملRespiratory Allergens from Furred Mammals: Environmental and Occupational Exposure
Furry mammals kept as pets, farm and laboratory animals are important allergen sources. The prevalence of sensitization to furred mammals appears to be increasing worldwide. Several mammalian allergens from diverse species are well characterized with regard to their molecular structure and immunogenicity, and some are already available for component-resolved allergy diagnostics. The distributio...
متن کاملFiber production and properties in genetically furred and furless rabbits.
The objectives of this study were to describe and compare means and measures of variability of fiber characteristics and fiber production between genetically furred and furless rabbits and among classes of furless rabbits. An F1 generation of rabbits was produced by mating New Zealand White does to a rare, furless Mini Lop buck. All F1 offspring had normal coats of fur. Inter se random matings ...
متن کاملThe little feathered ecosystem engineer
All animals have an effect on the environment, but some key species – called ecosystem engineers – can have a particularly large influence. Their impact can be positive, by creating and maintaining habitats and increasing biodiversity, but they can also be negative, by destroying habitats and reducing biodiversity. Interestingly, the magnitude of the effect that an ecosystem engineer has on the...
متن کاملPolyamines content in meat of feathered game
Information about polyamines content in food is of great interest for many researches and dieticians. The reason for increasing interest is due to polyamines specific biological role, including participation in tumour growth. In the study the content of polyamines (spermine and spermidine) in the breast and thigh muscles of selected feathered game, killed in a way typical for used farming metho...
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ژورنال
عنوان ژورنال: American Midland Naturalist
سال: 1922
ISSN: 0003-0031
DOI: 10.2307/2992720