 |
 |
|
|
|
|
|
|
|
Very Small Deviations: Extreme disturbances and deviations in physical maturity affect the child's adjustment. Among these deviations may be mentioned oversize, undersize, extreme acceleration or retardation in rate of growth, disproportionate growth of certain parts of the body, and inappropriate growth. Very tall girls feel especially self-conscious; during adolescence they may find heterosexual adjustment exceedingly difficult. Boys, on the other hand, are usually more disturbed at being undersized.
One is led to the conclusion that all degrees of racial differences occur among human populations, beginning with very small deviations which can be ascertained only through elaborate statistical studies and up to differences that are easily apparent. Yet, whether large or small, all race differences are compounded of the same elementary gene differentials which occur between individuals within a race or a population. For example, individuals with any one of the four blood types occur among the present inhabitants of the United States and of central Asia, albeit some of the blood types are much commoner in one, and others in the other of these areas.
It follows from the method of representing the state, and of computing the probability distributions, that if the distribution for a coordinate is closely concentrated around a most probable value, the distribution for the momentum will be very widely spread. It can be shown that, if b.x and A/> are the root-mean-square deviations of the coordinate and the corresponding momentum from their mean values,A* • A/> ^ h/4n.
|
|
|
|
