## Immersions of manifolds

It is shown that certain simple figures can not be cut by scissors into pieces that can be reassembled to form certain other simple figures. © 1963 Hebrew University.

The class of symmetric path-independent models with experimenter-controlled events is considered in conjunction with two-choice probability learning experiments. Various refinements of the notion of probability matching are defined, and the incidence of these properties within this class is studied. It is shown that the linear models are the only m...

A noncontingent success (NCS) reinforcement schedule for binary prediction is one in which the subject has the same probability (δ) of being correct regardless of which response he makes. These schedules may be contrasted with the more commonly studied noncontingent event (NCE) schedules in which the event probabilities are not contingent on the su...

In choice reaction time tasks, response latency varies as the subject changes his bias for speed vs accuracy; this is the speed-accuracy tradeoff. Ollman’s Fast Guess model provides a mechanism for this tradeoff by allowing the subject to vary his probability of making a guess response rather than a stimulus controlled response (SCR). It is shown t...

Strategies for the analysis of public policy have been a major focus of interest among social scientists during the last decade. This paper introduces a survey research design and perspective which differ from most current strategies for public policy analysis. The design, which is basically an ex post facto correlational design, employs an unconve...

Rainfall series of different climatic regions were analysed with the aim of generating daily rainfall sequences. A survey of the data is given in I, 1. When analysing daily rainfall sequences one must be aware of the following points:

a. Seasonality. Because of seasonal variation of features of the rainfall process the analysis is done for each mont...

Holman and Marley have shown that Thurstone’s Case V model becomes equivalent to the Choice Axiom if its discriminal processes are assumed to be independent double exponential random variables instead of normal ones. It is shown here that for pair comparisons, this representation is not unique; other discriminal process distributions (specifiable o...

Measurements were made of the size distribution and maximum size of drops in liquid-liquid systems. The data on the maximum drop size, together with other data available in the literature, are assessed in the light of Hinze's [1] theory. It is shown that the dispersion of drops in a gravitational field transverse to the flow can be predicted using ...

If f and g are nonvanishing characteristic functions the functional equation g(s)g(t)g(-s - t) = f(as)f(at)f(-as - at) implies g(s) = eibsf(as), i.e., f and g corresponding to probability distributions of the same type. It is shown here that when f and g are allowed to vanish this equation also has solutions in which f and g correspond to distribut...