منابع مشابه
Chequered spread
eight teams of six to eight volunteers will work one week each to observe and photograph the animals in Ningaloo Marine Park, off the coast of Western Australia, where these and other ocean dwellers have become a focus of a flourishing ecotourism. Specifically, the research is designed to establish the rate of return of the animals to the region and to specific parts of the reef, any site prefe...
متن کاملFungal symbioses in hornworts: a chequered history.
Hornworts are considered the sister group to vascular plants, but their fungal associations remain largely unexplored. The ancestral symbiotic condition for all plants is, nonetheless, widely assumed to be arbuscular mycorrhizal with Glomeromycota fungi. Owing to a recent report of other fungi in some non-vascular plants, here we investigate the fungi associated with diverse hornworts worldwide...
متن کاملThe chequered career of Galen's doctrine on the pulmonary veins.
By its heat and continuous motion, the lung further concocts the blood brought to it through the arterylike vein [pulmonary artery], and renders it foamier, such as that [blood] already is which reaches the lung through the veinlike artery [pulmonary vein] from the left ventricle of the heart, since it has already been elaborated in both ventricles of the heart. [Our italics] Vesalius, Fabrica,...
متن کاملSpread-space spread-spectrum technique for secure multiplexing.
A novel technique for multiplexing complex images is proposed in which each image may be demultiplexed only if a set of random encryption keys is known. The technique utilizes the ability of the double random phase encoding method to spread a signals' energy in both the space and the spatial frequency domains in a controlled manner. To multiplex, images are independently encrypted with differen...
متن کاملStudy of spread codes with block spread OFDM
This paper presents the study undertaken with block spread OFDM and compares three spreading matrices. The matrices include the Hadamard, Rotated Hadamard and Mutually Orthogonal Complementary Sets of Sequences (MOCSS). The study is carried out for block lengths of M = 2, M = 4 and M = 8 and it shows that all the spreading matrices show improvement and a better performance over the conventional...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2006
ISSN: 0960-9822
DOI: 10.1016/j.cub.2005.12.018