Sustaining the Operations of Community Indicators Projects: The Case of Twin Cities Compass

Abstract Royal DSM, a global science-based company in Nutrition, Health, and Sustainable Living, announced that it has awarded Professor Marc Hillmyer, from the Chemistry Department at the University of Minnesota Twin Cities, the 2020 Bright Science Award in materials sciences. The jury selected Professor Hillmyer because of the scientific breadth and depth of his work and its relevance to the advancement of biobased and circular materials.

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Traffic Equilibration: The Case of the Twin Cities Ramp Meter Shut Off

Traffic And Transportation Studies (2002) ◽

10.1061/40630(255)82 ◽

2002 ◽

Cited By ~ 2

Author(s):

David Levinson ◽

Atif Sheikh

Keyword(s):

Twin Cities

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Test–Retest Reliability of the Twin Cities Walking Survey

Journal of Physical Activity and Health ◽

10.1123/jpah.6.1.119 ◽

2009 ◽

Vol 6 (1) ◽

pp. 119-131 ◽

Cited By ~ 20

Author(s):

Ann Forsyth ◽

J. Michael Oakes ◽

Kathryn H. Schmitz

Keyword(s):

Physical Activity ◽

International Physical Activity Questionnaire ◽

Total Activity ◽

Twin Cities ◽

Kappa Statistics ◽

Good Reliability ◽

Retest Reliability ◽

Social Features ◽

Test Retest Reliability ◽

Activity Questionnaire

Background:The Twin Cities Walking Study measured the associations of built environment versus socioeconomic and psychosocial variables with total physical activity and walking for 716 adults.Methods:This article reports on the test–retest reliability of the survey portion of the study. To test the reliability of the study measures, 158 respondents completed measures twice within 1 to 4 weeks. Agreement between participants’ responses was measured using Pearson r and Spearman rho, and kappa statistics.Results:Demographic questions are highly reliable (R > .8). Questions about environmental and social features are typically less reliable (rho range = 0.42– 0.91). Reliability of the International Physical Activity Questionnaire (last 7 days version) was low (rho = 0.15 for total activity).Conclusions:Much of the survey has acceptable-to-good reliability. The low test–retest reliability points to potential limitations of using a single administration of the IPAQ to characterize habitual physical activity. Implications for sound inference are accordingly complicated.

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An Analysis of Competitive Oscillations between Japanese Twin Cities

Environment and Planning A Economy and Space ◽

10.1068/a210803 ◽

1989 ◽

Vol 21 (6) ◽

pp. 803-816 ◽

Cited By ~ 1

Author(s):

H Kohsaka

Keyword(s):

Dynamic Model ◽

Diffusion Of Innovation ◽

The Other ◽

Twin Cities ◽

Competitive Condition ◽

Medium Term ◽

Competitive Position ◽

Retail Development ◽

Market Shares ◽

Strong Competition

In this paper keenly-competing Japanese twin cities are examined and the competitive oscillations occurring between them is analyzed as a typical example of medium-term competitive processes. From an analysis of market shares for annual retail sales of women's and children's clothes it was found that there are certain oscillations between the twin cities. As these oscillations are derived from the strong competition between closely-located twin cities, they are called competitive oscillations. In order to analyze the generation of the competitive oscillations, an attempt to reproduce a strongly competitive condition by constructing a dynamic model of two-centre competition was made. As the twin cities share a large part of their populations, they are under strong competitive conditions in which major retail development at one city produces an absolute loss to the other city. Therefore, the twin cities seesaw through the introduction of innovations such as large shops in order to gain a more advantageous competitive position, resulting in competitive oscillations between them. This finding implies that the introduction of innovation to centres is a competitive device in the medium-term and is consistent with the view that the diffusion of innovation is closely related to the competitive process.

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