Tin ear

Do you hear what you write If not, you may be suffering from tin ear which means failing to see or, more precisely, hear excessively repeated words. At first read, the following text may appear acceptable, that is, it looks OK (Alexander and Rivett 1998). But how does it sound Read the text out loud. 

To what extent cell lines from the Immorto-Mouse are appropriate inner ear models and thus are useful for ototoxic studies is a matter of debate. On the positive side, the OC-k3 cell line displayed cisplatin-induced apoptotic cell death that was attenuated by inhibition of mitogen-activated protein kinase kinases [86, 87], HEI-OC1 cells were sensitive to gentamicin, streptomycin, cispla-tin, and acetaminophen/hydrocodon [40, 85], However, the HEI-OC1 cell line received some criticism lately, because of the absence of cell death in response to gentamicin [77, 88], These characteristics suggested that the ototoxin-sensitivity of HEI-OC1 depended on the culturing conditions, or that some cell batches had lost their sensitivity to AG-induced cell death. 

Since the consumption of PVC worldwide is about 30 M tonnes ear, it should be reasonable to assume a global heat stabiliser consumption of approximately 750,000 t/y. There is expected to be a decline in lead stabiliser consumption, however, and a 3%/y growth in the tin type, with 4% growth in mixed metal stabilisers. As an example, the lead previously used in wire and cable and in window and door profiles is being replaced by mixed metal stabilisers. Tin is expected to remain the most important PVC heat stabiliser in North America for some time. 

Actins contractile proteins found in many cell types. Actin is an essential component of the contractile complex of Muscle proteins (see). Microvilli, microspikes (filopodia) and stereocilia (hair cells in the cochlea of the ear and related organs) consist of actin associated with other proteins. Monomeric actin (G-actin) has 41,720. Microfilaments in the cell cytoplasm consist of filaments of polymerized actin (F-ac-tin) (see Cytoskeleton). A consensus model of F-actin shows a helical filament with a diameter of 90-100 A, in which the long axes of the monomers are nearly perpendicular to the filament axis. The positions of... 

The fact that the interior of metals may emit sound is utiHzed in a modem method for materials testing, called acoustic emission (AE). When cracks are initiated in a structure under stress, a rapid release of energy occurs and high-frequency elastic waves are generated. Their sound is generally not detectable by ear. Tin cry is an exception. Instead piezoelectric sensors are used, which record the acoustic emission and transform it to optical signals. In this way it is possible to hear an incipient crack formahon in the material of for instance, nuclear reactors. 

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