Four steps to extend drone use in research

Four steps to two sexes.

Four steps through which parasitic intracellular symbionts could bring about the evolution of two sexes are considered. In the first step, a primitive host population has biparental cytoplasmic inheritance and lacks gametic differentiation: parasitic cytoplasmic elements readily invade and spread by vertical transmission through such host populations, even if they have major deleterious effects...

Four Steps to Optimizing Trade Promotion Effectiveness

Trade promotion programs are pivotal to driving sales, building brand equity with consumers and strengthening channel partnerships. The average consumer packaged goods (CPG) company allocates 14% of its total revenue to trade promotion activities1, which underlines the importance of these programs. Despite growing trade promotion budgets, many companies simply anniversary the prior year’s trade...

DroneFace: An Open Dataset for Drone Research

In this paper, we present DroneFace, an open dataset for testing how well face recognition can work on drones. Because of the high mobility, drones, i.e. unmanned aerial vehicles (UAVs), are appropriate for surveillance, daily patrol or seeking lost people on the streets, and thus need the capability of tracking human targets’ faces from the air. Under this context, drones’ distances and height...

Four steps to reducing door-to-balloon time.

Rho Factor: Transcription Termination in Four Steps

Rho factor is a hexameric ring-shaped helicase which terminates transcription in Escherichia coli. Two recent crystal structures of Rho in complex with nucleic acid reveal how this helicase ring loads onto mRNA and encircles it.