The Solow-Swan model is shortly reviewed from a mathematical point of view. By considering non-constant returns to scale, we obtain general solution strategy. We then compute the exact for Cobb-Douglas production function, both classical and von Bertalanffy model. Numerical simulations are provided.

OBJECTIVE This study aims to explore the efficacy and safety of posterior vertebral column resection (PVCR) in treating thoracolumbar spinal tuberculous angular kyphosis (TSTAK). METHODS From January 2008 to January 2012, 17 TSTAK patients were treated surgically, including five males and 12 females, with an average age of 23.6 years, among five cases who had the kyphotic apical vertebrae loc...

The cobblestones of Hanover and Brattle Streets and of Cornhill, Boston, had an attraction at the turn of the last century for the suburban lad, who, wending his way through those historic paths of the former center of the Massachusetts Bay Colony, often sought the street to avoid the uneven sidewalks with their helter-skelter curbings. Even the round cobblestones between the rails of the troll...

the present study conducted to investigate the effect of energy sources and levels on performance and breast meat amino acids profile in cobb 500 broiler chicks. a total of 600 1-day-old cobb 500 broiler chicks with an average weight of 39 ± 0.50 g were randomly divided into five treatments. each treatment was further divided into four replicates. chicks were fed a basal diet based on corn and ...

Those MIT faculty who mentioned the Harvard project all agreed that it did little 'to improve teaching performance. Mattuck said it might be counterproductive by driving away good professors who might not wish to subject themselves to the. style. typical of the guide's evaluations, while Humanities Chairman Richard Douglass charged that the comments seemed written more for humor and wit than co...

Background: Scoliosis is the most common type of spinal deformity. A universal and standard method for evaluating scoliosis is Cobb angle measurement, but several studies have shown that there is intra- and inter- observer variation in measuring cobb angle manually.Objective: Develop a computer- assisted system to decrease operator-dependent errors in Cobb angle measurement.Methods: The spinal ...