The challenges facing water management have become increasingly global in scope since the 1970s. This reflects the rising awareness about the uncertainties posed by the worsening situation of the hydrosphere, and particularly freshwater, and the unsustainability of water management practices in many areas. It is also a reflection of the conflicts flaring up from the protracted social inequaliti...

groups are a prominent feature of today’s educational landscape, with black and Hispanic children regularly falling far behind white children. Although the achievement gaps narrowed somewhat during the 1970s and 1980s, they have since proved stubbornly resistant to closing further. If the nation is to achieve the goal of equal education as “a fact and a result,” to borrow President Lyndon Johns...

This prospective longitudinal study explores the differential effects of family connection and family individuation measured during adolescence on later midlife well-being. Home interviews were held in the 1970s with 99 families of 245 adolescents. Connection and individuation in the family system were measured by self-report, a projective exercise, and coding of taped family interactions. Twen...

In the mid-1970s it was recognised that cutting fluids containing nitrites and amines may also contain N-nitrosoamines in concentrations between 200 and 30 000 ppm before dilution.' 2 Since many N-nitrosoamines are carcinogenic to animals3 cutting fluids containing these substances were withdrawn from the market in the late 1970s and the nitrites replaced with other substances. Even if there is...