منابع مشابه
Promoting Children's Relational Understanding of Equivalence
Deep understanding of mathematical equivalence is critical for later mathematical understandings. However, research studies and national test results have repeatedly demonstrated that many students fail to develop adequate understanding of equivalence. Recent work from McNeil and colleagues proposes that this failure is partly due to the format of traditional instruction and practice with highl...
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The renin-angiotensin system (RAS) has provided bountiful material for investigation by basic scientists and clinicians for more than 100 years. Renin, first identified in 1898 as a pressor substance present in kidney extracts,1 sits at the top of an enzymatic cascade that, in its simplest form, is now broadly known: renin cleaves the circulating precursor, angiotensinogen, to release the inact...
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A concise survey of the emerging PD-loop technology is presented, which outlines several exemplary methods with robust DNA diagnostic potential: duplex DNA capture, topological DNA labeling, nondenaturing DNA sequencing and hybridization of molecular beacons to double-stranded DNA. Advantages of these new PNA-based assays over existing techniques for sequence-specific detection and manipulation...
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ژورنال
عنوان ژورنال: Virginia Libraries
سال: 2001
ISSN: 2331-3331
DOI: 10.21061/valib.v47i4.835