Wbatever its merit as an account of political institutions, the social contract theory bas, in recent years, been the subject of intense scrutiny as an explanation for our moral obligations. Prominent examples of this approacb include the work of Jobn Rawls and David Gauthier. l A criticism of this understanding ofmoral obligation arises from several commentators, partly as a result of claims m...

A mental deficiency hospital which caters for high-grade as well as low-grade patients tends to have a semi-punitive, authoritarian atmosphere resulting from the fact that many patients have been admitted through the courts; others have presented acute behaviour problems which have been impossible to deal with except by compulsory detention. Since the aim of the hospital *s to return these pati...

Mass.: Caustic-Claflin Co., 1916. Pp. iii+100. Miss Wrightson has collected and arranged 115 simple games, "for use among mothers and teachers of feebleminded children, the object being to help develop muscular control and to quicken the sense perceptions." She has grouped the games in three grades of difficulty, from the simplest to the most complex. "The most difficult among the exercises," s...

Various considerations liave constrained me to prepare this, guide. First, the Binet-Simon scale is coming into wider and wider use in institutions for defectives (feebleminded, epileptic, insane, criminal, juvenile delinquents) and in the public schools throughout the country. Such varied application of the tests should in time yield valuable comparative knowledge of various classes of individ...

We determine the exact value of optimal symmetric rate point (r, r) in Dueck zero-error capacity region binary adder channel with complete feedback. proved that average r = h(1/2-?) ? 0.78974, where h(?) is entropy function and ? 1/(2 log2(2 + ?3)). Our motivation a problem quantitative group testing. Given set n elements two which are defective, testing asks for identification these defectives...

should be of particular interest to teachers, including a descriptive account of two types of Special Schools and their contrasting educational methods. In these chapters, Mr. Duncan writes from personal experience, and in discussing Performance Tests he emphasises the " capacity to deal intelligently with things" (as distinct from abstract thoughts and words) which can, by careful training, be...

Such a lead should provide enough incentive towards speeding up the initiation of new enterprises of the kind, but as the needs of mental defectives do not make the same appeal to the general public as that made by other groups, we feel it may be helpful in furthering the Minister's aim, to draw attention to the work already being done in this direction, as illustrated by information we have re...

We propose two new classes of non-adaptive pooling designs. The first one is guaranteed to be -error-detecting and thus -error-correcting, where , a positive integer, is the maximum number of defectives (or positives). Hence, the number of errors which can be detected grows linearly with the number of positives. Also, this construction induces a construction of a binary code with minimum Hammin...

Eminent authorities are quoted as saying that mental tests are unnecessary with low grade defectives and of little value with high grade cases, and also that the opinion of an expert after a few minutes' observation and conversation is of greater value than the records of a series of tests conducted by a tyro who judges by results only. These statements contain a profound truth, but taken apart...