AUTHOR Belsky, Jay TITLE The "Effects" of Infant Day Care Reconsidered. INSTITUTION ERIC Clearinghouse on Elementary and Early Childhood Educati,on, Urbana, Ill. SPONS AGENCY National Inst. of Child Health and Human Development (NIH), Bethesda, Md.; Office of Educational Research and Improvement (ED), Washington, DC. PUB DATE 88 CONTRACT 400-86-0023 GRANT NICHHD-R0-1-HD-15496 NOTE 72p.; For a r...

This lecture presents Euclidean algorithm, and then introduces Vigenère, Hill, permutation and stream ciphers. We define attack models for performing cryptanalysis on different ciphers, and show how statistical analysis of the English language can be used to cryptanalyze cryptosystems with large key spaces. Readings from Chapter 1 of D. Stinson. 1 The Euclidean Algorithm(s) Many of the crypto s...

There are two ways eukaryotes double number of chromosomes: (1) whole genome duplication (polyploidy), in which all nuclear DNA is replicated, and (2) karyotypic fission (pseudopolyploidy), in which all chromosomes are physically bifurcated. We contrast polyploidy with pseudopolyploidy, highlighting when it is crucial to look at genetic vs. genomic levels. We review history of pseudopolyploidy,...

The Amber El Amino area is located 75 kilometres southeast of Prince Rupert. Access to the area is by helicopter from Prince Rupert or Terrace (Figure 1). The El Amino showing (BC MINFILE 103H 071) is located on Sulphide Creek (Figure 2) which drains eastward into Hanna (El Amino) Creek. The Amber showing (BC MINFILE 103H 171) is located 700 metres north of the El Amino showing. Hanna Creek dra...