[Treatment of contracture of achilles tendon with minimally invasive achilles tendon lengthening and system rehabilitation].

Objective: To investigate the safety and efficacy of minimally invasive achilles tendon lengthening and system rehabilitation for the treatment of contracture of achilles tendon.

Methods: From January 2002 to December 2010, 27 patients (31 feet) with contracture of achilles tendon were treated with minimally invasive achilles tendon lengthening and system rehabilitation. There were 11 males and 16 females with an average age of 35.

[Denitrification and kinetic characteristics using biodegradable polymers as carbon source and biofilm carrier].

The PBS material that in the form of insoluble biodegradable polymers pellets was investigated as the solid carbon source and the biofilm carrier for nitrate removal from wastewater. The denitrification of nitrate removal and kinetic process were carried out in a packed-bed reactor in order to remove nitrate in recirculation aquaculture system. The experimental results indicated that the optimal influent loading rate was in the range of 0.

[Treatment of anterior dislocation of sternoclavicular joint with Kirschner wire minimally invasive fixation].

Objective: To investigate the safety and efficacy of close reduction and percutaneous needle fixation for the treatment of anterior dislocation of sternoclavicular joint.

Methods: A retrospective analysis was performed with 6 cases of anterior sternoclavicular dislocation by close reduction and percutaneous needle fixation with Kirschner wire treated from January 2001 to February 2009, including 5 males and 1 female aged from 19 to 45 with an average of 28.8 years old.

[Isolation, identification and denitrification characterization of Thiobacillus denitrificans].

A autotrophic denitrifying bacterial strain, TD, was isolated from soil and the strain was identified and characterized. The strain was gram negative, strictly chemolithoautotrophic, and short rod shaped bacterium. The 16S rDNA sequence analysis revealed that strain TD had a similarity of 99.