A mechanism for inter-areal coherence through communication based on connectivity and oscillatory power.

Inter-areal coherence between field potentials is a widespread phenomenon in cortex. Coherence has been hypothesized to reflect phase-synchronization between oscillators and flexibly gate communication according to behavioral and cognitive demands. We reveal an alternative mechanism where coherence is not the cause but the consequence of communication and naturally emerges because spiking activity in a sending area causes post-synaptic potentials both in the same and in other areas.

Pulmonary aspergilloma on transthoracic ultrasound.

Purpose: Pulmonary aspergilloma affects immunocompromised patients but is also a recurrent condition in patients previously treated for pulmonary tuberculosis.

Methods And Results: We report the case of a 45-year-old patient with a history of cured pulmonary tuberculosis 15 years earlier in whom we visualized pulmonary aspergilloma by transthoracic lung sonography. Sonography of pulmonary aspergilloma demonstrated an oval cavity with hypoechoic contents and an irregular border, measuring a diameter of 4.

Numerical Analysis of the Effects of Direct Dual Fuel Injection on the Compression Ignition Engine.

In this work, the influence of direct dual fuel injection on a compression ignition engine fueled with gasoline and diesel has been investigated. To do this, closed cycle combustion simulations have been performed. Gasoline has been supplied through port injection and early direct and late direct injection to achieve fuel stratification and emission reduction.

Vulnerability mapping: A conceptual framework towards a context-based approach to women's empowerment.

•Women's empowerment interventions are not as effective as hoped or intended.•Could be an issue with intervention design and implementation.•Research reveals that there are several limitations to existing women's empowerment approaches.