Active control system trends

The active control concepts which achieve the benefit of improved mission performance and lower cost and generate system trends towards improved dynamic performance, more integration, and digital fly by wire mechanization are described. Analytical issues and implementation requirements and tools and approaches developed to address the analytical and implementation issues are briefly discussed

An Analysis of the Earnings of Canadian Immigrants

This paper reports estimates of simple wage equations fit to cross-sectional and pseudo-longitudinal data for Canadian immigrants in the 1971 and 1981 Canadian censuses. The estimates are used to assess (1) the usefulness of cross-sectional analyses for measuring the pace of immigrant earnings growth, (2) the labor market implications of admissions policies that place different weights on the work skills possessed by prospective entrants, and (3) the relative impact of selective outmigration and job-matching on the shape of immigrant earnings distributions as duration of stay increases. The estimates provide evidence of a small to moderate assimilation effect that suggests that immigrants make up for relatively low entry wages, although the wage catch-up is not complete until 13 to 22 years after entry into Canada. These results are revealed clearly in both the pseudo-longitudinal and the cross-sectional analyses. The estimates also provide evidence that the unobserved quality of immigrants' labor market skills declined following changes in Canada's immigration policies in 1974 that led to a sharp increase in the proportion of immigrants admitted on the basis of family ties. Finally, since there is no evidence that the variance of immigrant earnings increases with their duration of stay in Canada, and since there are no differential immigrant-native changes in higher-order moments of the earnings distribution as duration of stay increases, the results are inconclusive with respect to the importance of selective outmigration and job matching in the evolution of immigrant earnings distributions over time.

The Changing Labor Market Position of Canadian Immigrants

This paper uses pooled 1971, 1981, and 1986 Canadian census data to evaluate the extent to which (1) the earnings of Canadian immigrants at the time of immigration fall short of the earnings of comparable Canadian-born individuals, and (2) immigrants' earnings grow more rapidly over time than those of the Canadian-born. Variations in the labor market assimilation of immigrants according to their gender and country of origin are also analyzed. The results suggest that recent immigrant cohorts have had more difficulty being assimilated into the Canadian labor market than earlier ones, an apparent consequence of recent changes in Canadian immigration policy, labor market discrimination against visible minorities, and the prolonged recession of the early 1980s.

Spraying Grows Up

Spraying to control weed and insect pests has grown from babyhood to manhood in about 5 years. Chemical sprays are the ace in the hole a farmer has at his disposal

Deconstructing therapy outcome measurement with Rasch analysis of a measure of general clinical distress: the Symptom Checklist-90-Revised

Rasch analysis was used to illustrate the usefulness of item-level analyses for evaluating a common therapy outcome measure of general clinical distress, the Symptom Checklist-90-Revised (SCL-90-R; Derogatis, 1994). Using complementary therapy research samples, the instrument's 5-point rating scale was found to exceed clients' ability to make reliable discriminations and could be improved by collapsing it into a 3-point version (combining scale points 1 with 2 and 3 with 4). This revision, in addition to removing 3 misfitting items, increased person separation from 4.90 to 5.07 and item separation from 7.76 to 8.52 (resulting in alphas of .96 and .99, respectively). Some SCL-90-R subscales had low internal consistency reliabilities; SCL-90-R items can be used to define one factor of general clinical distress that is generally stable across both samples, with two small residual factors

Spaceboard II Structural Panels: Forming Apparatus and Methods

Novel methods and a patented apparatus have been developed to fabricate Spaceboard II, a new unique structural board of pulped wood fiber. Like the earlier Spaceboard I, the board has flat, high-density faces and a core of rectangular cells defined by high-density cell walls formed integrally with the faces. The board is assembled from two asymmetrical panel halves joined cell to cell. The panels are formed (molded) at low bulk density and subsequently compacted to a unique shape and uniform high density. Spaceboard II is formed by the porous mandrel method, which allows fabrication of much thicker panels than was possible with the original Spaceboard I method. A variety of wet or dry (adhesive-coated) fiber furnish may be used, with either air or water as the forming vehicle. The boards are being investigated for use in light frame and commercial construction; for packaging, palletizing, partitions, and furniture; and for other uses. In the present study, a total of 55 panels, 635 by 1,244 by 38 mm thick, were made by wet-and dry-forming methods in a Forest Products Laboratory patented apparatus

The Changing Labor Market Position of Canadian Immigrants

This paper uses pooled 1971, 1981, and 1986 Canadian census data to evaluate the extent to which (1) the earnings of Canadian immigrants at the time of immigration fall short of the earnings of comparable Canadian-Born Individuals, and (2) immigrants' earnings grow more rapidly over time than those of the Canadian-born. Variations in the labor market assimilation of immigrants according to their gender and country of origin are also analyzed. The results suggest that recent immigrant cohorts have had more difficulty being assimilated into the Canadian labor market than earlier ones, an apparent consequence of recent changes in Canadian immigration policy, labor market discrimination against visible minorities, and the prolonged recession of the early 1980s

Determining the Future for Louisiana Sugar Cane Products, Inc.: A Case Study Analyzing Vertical Coordination Options

Deciding how to coordinate activities can be a challenge posed in any marketing chain. This case involves an agricultural cooperative that has focused entirely on marketing raw sugar cane for additional refinement. Recent dramatic shifts in the sector have caused the members of the cooperative to consider building a facility that will process the raw sugar cane. In so doing, the cooperative can consider using the spot market, using contracts, vertically coordinating, or vertically integrating. This case study of Louisiana Sugar Cane Products, Inc. is a unique, real-life case that can be widely used in marketing and cooperatives courses.Agribusiness, Crop Production/Industries,