Theoretical basis of all-optical modulation of a probe laser beam due to photothermal modulation of the aggregation state in organic dyes, with experimental proof of the principle.

The inherent potential for self-assembly is a well-known attribute of organic dye molecules. This work takes advantage of the changes in dye photochemical and photophysical properties produced by the aggregation phenomenon, to investigate the behavior of all-optical modulation in molecular aggregates. The theoretical principles for a dual beam all-optical modulation, as well as the conception of an optical logic gate by exploring the aggregation phenomenon are discussed throughout the article.

Mott resistive switching initiated by topological defects.

Avalanche resistive switching is the fundamental process that triggers the sudden change of the electrical properties in solid-state devices under the action of intense electric fields. Despite its relevance for information processing, ultrafast electronics, neuromorphic devices, resistive memories and brain-inspired computation, the nature of the local stochastic fluctuations that drive the formation of metallic regions within the insulating state has remained hidden. Here, using operando X-ray nano-imaging, we have captured the origin of resistive switching in a VO-based device under working conditions.

Predominance of as Agent of Dermatophytoses in Cape Verdean School-Age Children.

Dermatophytoses are infectious skin diseases of public health importance because of their transmissibility and high prevalence, especially among children. This is the first study aiming to estimate and report the burden of dermatophytoses on school-age children on the island of Santiago in Cape Verde, an African country that is an archipelago. A total of 249 students attending the afternoon shift of three elementary schools in the city of Achada Igreja were examined.

Advancing Global Pose Refinement: A Linear, Parameter-Free Model for Closed Circuits via Quaternion Interpolation.

Global pose refinement is a significant challenge within Simultaneous Localization and Mapping (SLAM) frameworks. For LIDAR-based SLAM systems, pose refinement is integral to correcting drift caused by the successive registration of 3D point clouds collected by the sensor. A divergence between the actual and calculated platform paths characterizes this error.