A terminal assessment of stages theory : introducing a dynamic states approach to entrepreneurship

Stages of Growth models were the most frequent theoretical approach to understanding entrepreneurial business growth from 1962 to 2006; they built on the growth imperative and developmental models of that time. An analysis of the universe of such models (N=104) published in the management literature shows no consensus on basic constructs of the approach, nor is there any empirical confirmations of stages theory. However, by changing two propositions of the stages models, a new dynamic states approach is derived. The dynamic states approach has far greater explanatory power than its precursor, and is compatible with leading edge research in entrepreneurship

Spread Footings for Highway Bridges

DTFH61-82-C-00075A long term study of the settlement performance of 21 bridge foundations supported on cohesionless soil sand or silt was completed to provide a reliable database for engineering evaluation. The observations documented the successful performance of the foundations where total average settlement of 0.75 In was recorded while an average of only 0.25 In of settlement was noted after construction of the bridge decks. Geotechnical engineering methods for prediction of settlement of foundations on sand were evaluated with five methods compared in detail to observed data. Recommendations for design are provided. Geotechnical instrumentation monitoring systems for observation of settlement and tilt and related parameters are described along with preparation of a computerized data base for data storage and retrieval. Design recommendations for foundations on rock as well as risk based design concepts are presented