The osteogenic potential of autogenous bone grafts is superior to that of allografts and xenografts because of their ability to release osteoinductive growth factors and provide a natural osteoinductive surface for cell attachment and growth. There are different techniques for harvesting intraoral bone for augmentation, but new bone formation on the transplanted site with each of these methods ...

It has long been known that gastric mill network activity (cycle period 5-10 s) alters pyloric network output (cycle period approximately 1 s), but these effects have not been quantified. Many pyloric muscles extract gastric mill timed variations in pyloric motor neuron firing, and consequently produce gastric mill timed movements even though no gastric mill neurons innervate them. Determining ...

who by the time he had passed his final medical examination at the age of 40 had been a steel mill melter, a locomotive fireman, a barman, an insurance salesman, and a whisky pedlar, and also a medical student (off and on) for 18 years. After obtaining his qualification in 1948 he spent some time working at a general hospital, and this was followed by a highly successful period as a family doctor.

Simultaneous endoscopic and electrophysiological recordings were used to observe the behavior of the gastric mill complex while recording the motor output of the stomatogastric ganglion (STG) in intact crabs. In the crab STG, many pattern-generating neurons are able to fire in several distinct rhythmic motor patterns. Specifically, many neurons can switch between firing in time with the rapid p...

The management of cane supply from growers’ fields to the mill involves many stakeholders and many tasks to be carried out along the chain, the successful combination of which impacts on the efficiency and profitability of the mill area. A simulation tool called MAGI has been developed to assist millers and growers in designing and assessing new ways of organising supply management. The issues ...

Ethanol, the common name for ethyl alcohol, is fuel grade alcohol that is predominately produced through the fermentation of simple carbohydrates by yeasts. In the United States, the carbohydrate feedstock most commonly used in the commercial production of ethanol is yellow dent corn (YDC). The use of ethanol in combustion engines emits less greenhouse gasses than its petroleum equivalent, and ...

This paper was aimed to address the modeling and optimization of factors affecting the corrosive wear of low alloy and high carbon chromium steel balls. Response surface methodology, central composite design (CCD) was employed to assess the main and interactive effects of the parameters and also to model and minimize the corrosive wear of the steels. The second-order polynomial regression model...

This work aims at comparing different preparation chains to produce wood powders suitable for further gasification in an entrained flow reactor. Three powders, with particle size below 1 mm, have been produced pilot scale from resinous chips: a powder of raw and torrefied both ground knife mill, vibration mill. The respective requirements energy feedstock material resource determined each chain...