Controlled spherical deuterium droplets as Lagrangian tracers for cryogenic turbulence experiments.

The study of the smallest scales of turbulence by (Lagrangian) particle tracking faces two major challenges: the requirement of a 2D or 3D optical imaging system with sufficiently high spatial and temporal resolution and the need for particles that behave as passive tracers when seeded into the flow. While recent advances in the past decade have led to the development of fast cameras, there is still a lack of suitable methods to seed cryogenic liquid helium flows with mono-disperse particles of sufficiently small size, of the order of a few micrometers, and a density close enough to that of helium. Taking advantage of the surface tension, we propose two different techniques to generate controlled liquid spherical droplets of deuterium over a liquid helium bath.

Attachment behaviours in adults with intellectual disabilities in assisted living facilities: representations from direct-care staff.

Background: Studies on individuals with intellectual disabilities (IDs) indicate that primary care staff are potential attachment figures. Therefore, the ability to interpret and respond to attachment behaviours with sensitivity is crucial for professionals working with adults with IDs. However, little is known regarding representations and understanding of these attachment behaviours among professionals.

Is health a priority? Examining health-related support needs in adults with intellectual disability through a self-determination framework.

Background: People with intellectual disabilities experience inequities in healthcare. Those are maintained by individual limitations as well as environmental factors. In this context, health needs are less likely to be expressed, identified and met.

[Kinematic gait pattern with silicone ankle-foot ortesis in patients with drop foot].

Introduction: The Drop foot is a condition that is usually handled with short orthosis, usually made of polypropylene. It has also been described as being treated with silicon orthosis, little studied but which seem to improve the kinematic pattern of gait and, given its comfort, be more accepted by patients. Our study describes the kinematic characteristics of gait and patient satisfaction when using a silicon foot ankle orthosis, and compares this pattern to the non-use of the orthosis, in patients with a drop foot.

3D reconstruction of dynamic liquid film shape by optical grid deflection method.

In this paper, we describe the optical grid deflection method used to reconstruct the 3D profile of liquid films deposited by a receding liquid meniscus. This technique uses the refractive properties of the film surface and is suitable for liquid thickness from several microns to millimeter. This method works well for strong interface slopes and changing in time film shape; it applies when the substrate and fluid media are transparent.