In order to detect plant aroma in a natural environment, we have investigated roses’ aroma using an odor sensor of quartz crystal resonator (QCR). In present work, we describe experimental setup for real-time sensing of roses’ aroma and feature extraction of roses’ aroma sensed by QCR sensors. This method can distinguish as different aroma as human sense of smell judged for two kinds of roses. ...

BACKGROUND Roses have been cultivated for centuries and a number of varieties have been selected based on flower traits such as petal form, color, and number. Wild-type roses have five petals (simple flowers), whereas high numbers of petals (double flowers) are typical attributes of most of the cultivated roses. Here, we investigated the molecular mechanisms that could have been selected to con...

BACKGROUND Population-based serologic studies are a vital tool for understanding the epidemiology of influenza and other respiratory viruses, including the early assessment of the transmissibility and severity of the 2009 influenza pandemic, and Middle East respiratory syndrome coronavirus. However, interpretation of the results of serologic studies has been hampered by the diversity of approac...

A growing number of papers theoretically study the effects of introducing a preference signaling mechanism. However, the empirical literature has had difficulty proving a basic tenet, namely that an agent has more success when the agent uses a signal. This paper provides evidence based on a field experiment in an online dating market. Participants are randomly endowed with two or eight ‘‘virtua...