منابع مشابه
Knowing left from right: the molecular basis of laterality defects.
The apparent symmetry of the vertebrate body conceals profound asymmetries in the development and placement of internal organs. Asymmetric organ development is controlled in part by genes expressed asymmetrically in the early embryo, and alterations in the activities of these genes can result in severe defects during organogenesis. Recently, data from different vertebrates have allowed research...
متن کاملHemihypnosis, hypnosis, and the importance of knowing right from trend.
The hypnosis community may be buying into a neuroscience fad concerning brain laterality. Accustomed to deflating folkloric claims about hypnosis, researchers and practitioners of hypnosis have come to appreciate the danger of lingering myths and the importance of dispelling legends. Tales are ubiquitous, however, and claims relating to the left or right hemispheres require both context and sub...
متن کاملTweeting From Left to Right
We estimated ideological preferences of 3.8 million Twitter users and, using a data set of nearly 150 million tweets concerning 12 political and nonpolitical issues, explored whether online communication resembles an “echo chamber” (as a result of selective exposure and ideological segregation) or a “national conversation.” We observed that information was exchanged primarily among individuals ...
متن کاملHow Do Embryos Know Left from Right?
August 2005 | Volume 3 | Issue 8 | e286 | e281 According to folklore, Polynesians originated from a mythical homeland called Hawaiki. The existence of such a place, however, as well as its location, has been the subject of much speculation. Signifi cant research efforts have attempted to elucidate these claims through archeological, linguistic, and, more recently, biological evidence. Jean Trej...
متن کاملHow to Tell Right from Left
Many natural shapes have chirality (or handedness): for instance our hands have a right-hand version and a left-hand version, the two types being mirror images of each other. In chemistq, for example, molecules and crystals are classified as having chirality D or L. Interaction between molecules is dependent on their chirality, and chirality may determine chemical characteristics. For instance,...
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ژورنال
عنوان ژورنال: Nature Reviews Molecular Cell Biology
سال: 2012
ISSN: 1471-0072,1471-0080
DOI: 10.1038/nrm3456