A compact SiGe D-band power amplifier for scalable photonic-enabled phased antenna arrays.

To address the rising demand for high-speed wireless data links, communication systems operating at frequencies beyond [Formula: see text] are being targeted. A key enabling technology in the development of these wireless systems is the phased antenna array. Yet, the design and implementation of such steerable antenna arrays at frequencies over [Formula: see text] comes with a multitude of challenges.

[Qualification of low temperature vaporized hydrogen peroxide sterilization: Towards greater harmonization of practices?].

Objectives: Comparing performance qualification procedures for low temperature vaporized hydrogen peroxide sterilization. Assessing conformity with draft standard ISO/DIS 22441.

Methods: Qualification reports from several providers have been compared according to specific criteria: choices of cycles, loads, sterile barrier systems, probes, biological and chemical indicators; checking of packaging integrity and exposure to sterilizing agent.

The role of oncoplastic surgery in breast cancer.

The authors discuss the objectives of oncoplastic surgery in breast cancer management. Indications and advantages are summarised. Some surgical techniques are described.

Classification of periodic orbits in the four- and five-body problems.

The research described in this paper was motivated by the new types of periodic solutions that were recently discovered by Moore, Chenciner, Montgomery, and Simo in the three-body and the N-body problem (with large N). We attempt to classify the various types of periodic orbits, in the inertial frame, on the basis of an extensive numerical exploration. We have started an exploration of the four-body problem, where the classification of types of periodic orbits is more involved.