نتایج جستجو برای: allowable amplification factor
تعداد نتایج: 899771 فیلتر نتایج به سال:
Order types are a well known abstraction of combinatorial properties of a point set. By Mnëv’s universality theorem for each semi-algebraic set V there is an order type with a realization space that is stably equivalent to V . We consider realization spaces of allowable sequences, a refinement of order types. We show that the realization spaces of allowable sequences are universal and consequen...
The identiication of the needed redexes in a term is an undecidable problem. We introduce a (partially decidable) type assignment system, which distinguishes certain redexes called the allowable redexes. For a well-typed term e, allowable redexes are needed redexes. In addition, with principal typing, all the needed redexes of a normalisable term are allowable. Using these results, we can ident...
Recent clinical successes of small-molecule epidermal growth factor receptor (EGFR) inhibitors in treating advanced non-small cell lung cancer (NSCLC) have raised hopes that the identification of other deregulated growth factor pathways in NSCLC will lead to new therapeutic options for NSCLC. Met, the receptor for hepatocyte growth factor, has been implicated in growth, invasion, and metastasis...
Glioblastoma (GBM) is distinguished by a high degree of intratumoral heterogeneity, which extends to the pattern of expression and amplification of receptor tyrosine kinases (RTKs). Although most GBMs harbor RTK amplifications, clinical trials of small-molecule inhibitors targeting individual RTKs have been disappointing to date. Activation of multiple RTKs within individual GBMs provides a the...
Abstract—Local irregular topography has a great impact on earthquake ground motion. For scarp topography, using numerical simulation method, the influence extent and scope of the scarp terrain on scarp's upside and downside ground motion are discussed in case of different vertical incident SV waves. The results show that: (1) The amplification factor of scarp's upside region is greater than tha...
Primary brain tumors of glial origin often overexpress epidermal growth factor receptors (EGF-Rs). This may be associated with amplification of the EGF-R gene. We have examined tissue from 23 glioblastoma multiforme tumors and found amplification and rearrangement of the EGF-R gene in four of these. The cytoplasmic domain of the EGF-R gene was invariably amplified in these four tumors, while th...
Preliminary measurements and numerical predictions reveal that simple, and relatively small, horns generate remarkable amplification of acoustic particle velocity. For example, below 2 kHz, a 2.5 cm conical horn has a uniform velocity amplification ratio (throat-to-mouth) factor of approximately 3, or, in terms of a decibel level, 9.5 dB. It is shown that the velocity amplification factor depen...
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