Worms expressing themselves

Worms

Sir.?I slit. 11 deem it a great, favour if yon will kindly allow me a little space in your well-known journal for the following few lines with a view to draw the attention of your numerous readers to the subject. During the last two years of a practice attending over 20 years I have come across a series of cases suffering from a peculiar kind of worm which fly within a few seconds of their expu...

Programs that Model Themselves

Work on reeection has frequently concentrated on programming languages and operating systems. This work either involves the use of tower reeection or meta-object protocols. The subject of this paper is a diierent form of reeection that is, we believe, more powerful and fundamental than the other kinds. Self modelling is a process that has not received attention in the literature; indeed, we bel...

Worms, Nematoda

mRNAs scan themselves out

In eukaryotic cells, mRNAs are transcribed in the nucleus and must then be exported across the nuclear envelope before they can be translated in the cytoplasm. Multiple factors bind to nuclear mRNAs and mediate their translocation through the nuclear pores, but it is diffi cult to observe the rapid export of individual RNA molecules in real time. Two papers now track the movements of single mRN...

Helping Consumers Know Themselves

In standard models with asymmetric information, the parties involved are assumed to have private information about their own characteristics. In the health insurance market, for example, customers are typically assumed to know more about their health status than insurers do, and if the customers use this information in deciding whether to buy insurance, we have a classic case of adverse selecti...