Stabilization of Anterior Aspect of Distal Tibiofibular Syndesmosis: A Fully Arthroscopic Technique.

The anteroinferior tibiofibular ligament (AITFL) is 1 of the 4 ligaments forming the distal tibiofibular syndesmosis. When damaged, it is crucial to assess and address the lesion properly because a neglected or underdiagnosed lesion may invoke ankle osteoarthritis with underlying tibiofibular joint instability. In this technical note, we present a fully arthroscopic stabilization of the AITFL without the need for soft-tissue grafting.

Resolved imaging confirms a radiation belt around an ultracool dwarf.

Radiation belts are present in all large-scale Solar System planetary magnetospheres: Earth, Jupiter, Saturn, Uranus and Neptune. These persistent equatorial zones of relativistic particles up to tens of megaelectron volts in energy can extend further than ten times the planet's radius, emit gradually varying radio emissions and affect the surface chemistry of close-in moons. Recent observations demonstrate that very low-mass stars and brown dwarfs, collectively known as ultracool dwarfs, can produce planet-like radio emissions such as periodically bursting aurorae from large-scale magnetospheric currents.

Advanced Graft Development Approaches for ACL Reconstruction or Regeneration.

The Anterior Cruciate Ligament (ACL) is one of the major knee ligaments, one which is greatly exposed to injuries. According to the British National Health Society, ACL tears represent around 40% of all knee injuries. The number of ACL injuries has increased rapidly over the past ten years, especially in people from 26-30 years of age.

Binary orbits as the driver of γ-ray emission and mass ejection in classical novae.

Classical novae are the most common astrophysical thermonuclear explosions, occurring on the surfaces of white dwarf stars accreting gas from companions in binary star systems. Novae typically expel about 10(-4) solar masses of material at velocities exceeding 1,000 kilometres per second. However, the mechanism of mass ejection in novae is poorly understood, and could be dominated by the impulsive flash of thermonuclear energy, prolonged optically thick winds or binary interaction with the nova envelope.

A VLBI resolution of the Pleiades distance controversy.

Because of its proximity and its youth, the Pleiades open cluster of stars has been extensively studied and serves as a cornerstone for our understanding of the physical properties of young stars. This role is called into question by the "Pleiades distance controversy," wherein the cluster distance of 120.2 ± 1.

Overview and initial results of the very long baseline interferometry space observatory programme.

High angular resolution images of extragalactic radio sources are being made with the Highly Advanced Laboratory for Communications and Astronomy (HALCA) satellite and ground-based radio telescopes as part of the Very Long Baseline Interferometry (VLBI) Space Observatory Programme (VSOP). VSOP observations at 1.6 and 5 gigahertz of the milli-arc-second-scale structure of radio quasars enable the quasar core size and the corresponding brightness temperature to be determined, and they enable the motions of jet components that are close to the core to be studied.

[A case of returning radial nerve function after the excision of a neuro-sarcoma type tumor].

A case of 68 years old patient with neurosarcoma of the radial nerve is presented. After total resection of the tumour and the suture of the sheath of the nerve its function has returned. Eight years later the recurrence took place and 2 years later the limb has been amputated.