A simulated field test was designed to determine whether the Holmes-Wright A lantern (HWA) is a valid color vision test for the rail industry. The simulation replicated viewing rail signal lights at 0.8 km distance under daylight conditions. Using the worst-normal as the maximum number of allowable errors on the simulation, 94% of the color-defectives failed both tests on the first trial and 92...

In September 1950, a weekly sound-film entertainment was commenced for the patients at a hospital for adult male mental defectives. During the year preceding the first of these entertainments the number of items of misbehaviour in the institution was 208 and, during the year following 352. The increase could have been due to numerous factors other than the commencement of the film-shows. The pu...

more in need of frank discussion than the question of mental health. How important this question is you will realize when I tell you that there are more than 120,000 patients under care in our mental hospitals in England and Wales, and it is estimated that in addition there are 300,000 mental defectives, of whom roughly one-third need institutional care. At the outset I want to remind you of th...

A more practical design of X-chart has been proposed which recognizes that the process mean, in the majority of industrial operations, is a random variable, and uses the necessary information on the production rate and specification limits and the ratio of costs of false alarm and producing defectives. A methodology has been proposed to see whether incorporation of warning limits is effective f...

were different. Even if they had not been, the results would still not have been strictly comparable. Penrose himself says that " great care is necessary when comparing the results of one study on mental deficiency with those of another, for in practice both are beset by formidable difficulties." Formidable indeed have been those of the present analysis, so without attempting any comparisons le...

J. B. Lippincott Co. London: Pitman Medical Publishing (Jo. Pp. 203. 32s. The number of useful texts on mental deficiency is small, especially those by psychologists, so that a new volume written by the chief clinical psychologist of the Flower and Fifth Avenue Hospitals, New York, is opened with interest. The author, Harold Michal-Smith, draws a clear picture of the inadequacy of the social se...

In combinatorial group testing problems Questioner needs to find a defective element x ∈ [n] by testing subsets of [n]. In [18] the authors introduced a new model, where each element knows the answer for those queries that contain it and each element should be able to identify the defective one. In this article we continue to investigate this kind of models with more defective elements. We also...

more rapid recovery may take place, but are not prepared to state that they cure patients who would otherwise be unrecoverable. Psychopathic states have been entirely removed from the mental defectives in the classification and dealt with largely on the lines of Professor Henderson's Salmon lectures. A short chapter on war neuroses contains the experiences of Mira in the Spanish War which were ...

Many people hold very definite views which they do not hesitate to propound on this subject. For example a leading dignitary of the church recently advocated wholesale sterilization of mental defectives in an article published in a daily newspaper. Those who are interested in the social problem of mental inferiority would do well to study this new book on the subject by Professor Penrose. By so...

Data-defectives are always occurred during collecting urban traffic flow information due to all kinds of sensors’ failures. To mend the defective urban traffic flow information data, a new approach named SARBF neural network fitting is presented. It combines analysis based on spatial autocorrelation and RBF neural network fitting method. The complete data is determined to mend the defective dat...