PROBLEMS OF THE POST-WAR PUBLIC: SOLDIERS AND CITIZENS

THE recent British White Paper on post-war education in Englandleaves little doubt that Britain looks to a new era of education.The work has already begun. The British soldier of today willbe the key citizen of tomorrow. Cognizant of this fact, theBritish War Office has established a far-reaching program ofeducation for citizenship among England's troops. It is being carried out by the Army Educational Corps. Thisarticle is the story of their work. Mr. Bickersteth, educated at Christ Church, Oxford, and theUniversity of Paris, is Director of Army Education in the BritishWar Office. He is on leave as Warden of Hart House, Universityof Toronto.     

Intensive management reduces butterfly diversity over time in urban green spaces

Urban Ecosystems - Loss and fragmentation of semi-natural grasslands have had negative consequences for grassland biodiversity, such as butterflies. Urban parks and other urban green spaces have so...     

Downsizing for downtown: limb lengths,toe lengths,and scale counts decrease with urbanization in western fence lizards (Sceloporus occidentalis)

Urban Ecosystems - Urbanization-induced habitat loss and alteration causes significant challenges for the survival of many species. Identifying how species respond to urbanization can yield...     

Recent developments in D-optimal designs

In the paper, some issues concerned with the determining spring balance weighing designs satisfying the criterion of D-optimality under the assumption measurement errors are uncorrelated and they have the same variances are discussed. In addition, highly D-efficient spring balance weighing designs are also considered. Some conditions under which any spring balance weighing design is regular D-optimal or highly D-efficient are proved. What is more, new construction methods of regular D-optimal and highly D-efficient spring balance weighing designs are presented.     

Models of social mobility

Properties of measures and models of social mobility are analyzed in relation to the conceptualization of mobility. Two main objectives of mobility research are identified. One is the study of determinants of occupational achievement, the other is the study of mobility as a characteristic of social systems. It is shown that the realization of both objectives is hindered by a failure of commonly used models and measures of mobility to separate out the various individual and structural factors responsible for mobility.