Sound localization in web-based 3D environments.

Sound delivery is a key aspect of immersivity in virtual and augmented reality (VR/AR), with studies hinting at a correlation between users' ability to locate sounds around them and the 'feeling of being there'. This is particularly true for WebVR, a method of delivering immersive experiences through a local web browser that has recently captured attention in multiple industries. In WebVR, audio is the main spatial cue.

Present role of femoral and acetabular osteotomies: The Chiari osteotomy (long term follow-up).

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Arthroplasty in high grade congenital hip dislocation: Personal experience and review of the literature.

Total hip arthroplasty (THA) in congenital high grade hip dislocation often represents a problematic issue. Reviewing their selected cases and literature data, authors focus on some key points for this demanding surgery. Most important steps are acetabular positioning and surgical approach (exposure and release).

[Hallux valgus: results of the surgical management of hallux valgus].

The Authors purpose to analyse on the basis of a critical examination of the operated hallux valgus with 2 different surgical technics the causes of failure and to give more exact indications about choosing the right surgical system.