An integrated photonic engine for programmable atomic control.

Solutions for scalable, high-performance optical control are important for the development of scaled atom-based quantum technologies. Modulation of many individual optical beams is central to applying arbitrary gate and control sequences on arrays of atoms or atom-like systems. At telecom wavelengths, miniaturization of optical components via photonic integration has pushed the scale and performance of classical and quantum optics far beyond the limitations of bulk devices.

-infected hemorrhagic ulcerative infantile hemangioma: A rare complication.

Key Clinical Message: Infections in infantile hemangiomas (IHs) are generally limited, and only few cases have been reported. The rapid expansion of an ulcerated IH should raise concern for possible complications to monitor and provide immediate therapeutic interventions. This case highlights the importance of prompt treatment in large segmental IHs to prevent ulceration and related complications, including bleeding and superinfection.

Correction: Integrated silicon photonic MEMS.

[This corrects the article DOI: 10.1038/s41378-023-00498-z.].

Integrated silicon photonic MEMS.

Silicon photonics has emerged as a mature technology that is expected to play a key role in critical emerging applications, including very high data rate optical communications, distance sensing for autonomous vehicles, photonic-accelerated computing, and quantum information processing. The success of silicon photonics has been enabled by the unique combination of performance, high yield, and high-volume capacity that can only be achieved by standardizing manufacturing technology. Today, standardized silicon photonics technology platforms implemented by foundries provide access to optimized library components, including low-loss optical routing, fast modulation, continuous tuning, high-speed germanium photodiodes, and high-efficiency optical and electrical interfaces.

Incidence and risk factors related to anxiety of children and adolescents before elective surgery.

The goal of this study was to evaluate the preoperative anxiety in children and adolescents and to identify some of the risk factors associated with the incidence of anxiety in 9-18 years old group. Children and adolescents 9-18 years old hospitalized the night before elective surgeries were analyzed in terms of incidence and severity of anxiety using the State-Trait Anxiety Inventory (STAI) measure. Of the 164 patients, 111 (67.