The revival of vaginal surgery in the era of endoscopy: V-NOTES initial experience with a series of 32 patients.

Background: Transvaginal natural orifice transluminal endoscopic surgery (V-NOTES) is an emerging surgical technique in the evolution of minimally invasive surgery. This technique allows different types of surgical procedures to be performed by vaginal access with endoscopic control. The combination of vaginal surgery and laparoscopy brings many advantages, especially the absence of incisions in the abdominal wall and better visualization of the abdominal cavity.

Non-GNSS Smartphone Pedestrian Navigation Using Barometric Elevation and Digital Map-Matching.

Pedestrian navigation in outdoor environments where global navigation satellite systems (GNSS) are unavailable is a challenging problem. Existing technologies that have attempted to address this problem often require external reference signals or specialized hardware, the extra size, weight, power, and cost of which are unsuitable for many applications. This article presents a real-time, self-contained outdoor navigation application that uses only the existing sensors on a smartphone in conjunction with a preloaded digital elevation map.

[Hematocolpos : an unappreciated diagnosis of hymen imperforation].

The imperforation of the hymen is a relatively rare congenital malformation. It usually manifests itself in adolescence by a hematocolpos. Hematocolpos is the vaginal retention of menstrual blood at puberty.