Internalization in the U.S.: Slipping Backward?

The effect of US signalling and the US–CS interval on backward conditioning in mice

The effect of US signalling and the US-CS interval in backward conditioning was assessed in mice. For one group of mice the presentation of food was signalled by a tone and for another group, food was unsignalled. For half of the mice, within each group, the presentation of food preceded a visual cue by 10 s. For the other half, food was presented at the start of the visual cue (0-s US-CS inter...

Slipping through the middle

Tugging and pulling in asymmetric cell divisions n asymmetric divisions, the cell alters the normal process that centers the spindle in the mother cell, but how it regulates the timing of spindle movement is unclear. Now, on page 245, Labbé et al. describe a tethering system that resists premature movement of the mitotic spindle during asymmetric cell divisions in C. elegans embryogenesis. It w...

Slipping the Bonds of Federalism

Metastasis: Slipping Control

‘‘And now here it was again, now grown, now in its new home.’’ In her book Resilience, Elizabeth Edwards recalls what raced through her mind when she learned that her cancer had come back and had metastasized. After surgery, radiation, and chemotherapy, she thought that the cancer ‘‘had been chased away.’’ How does cancer find a new home and become metastatic? The short answer is simple: it is ...

Factors Influencing Social Media Usage in the US

Given the immense shifts the social networking sites and applications have brought about, a considerable number of researchers in the field of communication studies have turned to study different aspects of social media usage and factors influencing it. This study gathered data from 33318 US non-institutionalized citizens over 18 including 17079 females and 16239 males; they were members of web...