We review the Standard Model in a form conducive to formulating its possible short distance extensions. This depends on the value of the Higgs mass, the only unknown parameter of the model. We suggest methods to reproduce many of the small numbers in the model in terms of scale ratios, applying seesaw like ideas to the breaking of chiral symmetries. We then investigate how the N = 1 Standard Mo...

Nearly two years ago, a colleague of mine made me a once in a lifetime offer: to join a team that would spend seven weeks working at a research station in Antarctica, the kind of offer that one cannot refuse. And refuse I did not, but it was not an easy decision. To begin with, such a trip would make me unreachable to people chasing me for faculty meetings, grant reports, referee reports, annua...

This chapter reviews prospects for the development and practical introduction of ultrasmall electron devices, including nanoscale field-effect transistors (FETs) and single-electron transistors (SETs), as well as new concepts for nanometer-scalable memory cells. Physics allows silicon FETs to be scaled down to ∼3 nm gate length, but below ∼10 nm the devices are extremely sensitive to minute (su...

An important remark is that in the model for the main theorem אω is not strong limit, in particular 21 = אω+2. In doing so we avoid a difficult question of Woodin’s which asks whether it is consistent to have the failure of both SCH and weak square at אω. The main theorem of this paper should be compared with a theorem in [9] where a similar result is obtained for successive failures of weak sq...

Continuous interpolates are described for classical dynamical systems defined by discrete time-steps. Functional conjugation methods play a central role in obtaining the interpolations. The interpolates correspond to particle motion in an underlying potential, V . Typically, V has no lower bound and can exhibit switchbacks wherein V changes form when turning points are encountered by the partic...

This article focuses on how recreational drug users in the Netherlands and in online communities navigate the risks and reduce the harms they associate with psychoactive drug use. To do so, we examined the protective practices they invent, use, and share with their immediate peers and with larger drug experimenting communities online. The labor involved in protective practices and that which ul...