The measurement of long period and secular deformation with deep borehole tiltmeters

Two clusters of instruments were emplaced in fractured bedrock in eastern Massachusetts in 1970 and 1975. The intrasite agreement at tidal periods was about two percent, but there is no agreement at longer periods. A strong temperature-induced annual component ranging from 3 to 15 urads was present on instruments installed at depths of 15-20m; it was not apparent on those at 100-120m. One instrument, in continuous operation for three years at 100m, showed a net drift of 0.3 urads down to the SW, with a maximum departure of 2.0 urads from the trend. Pore pressure variations, material corrosion and creep, and local movements are apparently the limiting factors to long-term measurements

The Role of Attitudes and Motivations as Major Factors in Acquisition of Spanish as a Second Language

This study used a questionnaire given to four classes of beginning Spanish to examine students’ motivations and attitudes towards learning a foreign language. Results show that although students do not regularly encounter individuals who do not speak English and therefore have little opportunity to practice language outside the classroom, their attitudes are overwhelmingly positive towards foreign language and culture. Most participants strongly agree that bilingualism is important and report they would want to be fluent in at least two languages