[Sunshine environment in different forms of communities in Guiyang, China.].

In this study, six different types of residential areas in Guiyang were selected as the research objects, including high-rise high-density, high-rise low-density, middle-rise high-density, middle-rise low-density, low-rise high-density and low-rise low-density. The indices of sunshine compliance rate and the building's sunshine hour ratio were constructed to compare and analyze sunshine environment across those six different residential areas. The factors influencing sunshine environment in different residential areas were studied.

Promotion of peripheral nerve regeneration of a peptide compound hydrogel scaffold.

Background: Peripheral nerve injury is a common trauma, but presents a significant challenge to the clinic. Silk-based materials have recently become an important biomaterial for tissue engineering applications due to silk's biocompatibility and impressive mechanical and degradative properties. In the present study, a silk fibroin peptide (SF16) was designed and used as a component of the hydrogel scaffold for the repair of peripheral nerve injury.

[Surgical treatment of dumbbell tumor complicating with vertebral destruction in cervical spine].

Objective: To explore the feasibility and efficacy of operating through an anterior approach in the treatment of dumbbell tumor complicating with vertebral destruction in cervical spine.

Methods: Surgical procedures were performed through an anterior approach in 7 cases of dumbbell tumor complicating with vertebral and transverse process destruction during the period of May 2004 to February 2009. Bone graft and internal fixation were implemented after tumor removal.