Geometrical stability theory is a powerful set of model-theoretic tools that can lead to structural results on models of a simple first-order theory. Typical results offer a characterization of the groups definable in a model of the theory. The work is carried out in a universal domain of the theory (a saturated model) in which the Stone space topology on ultrafilters of definable relations is ...

In 2017 I had the honor of meeting Steven Weinberg—whose obituary appears in October 2021 issue Physics Today (page 72)—at University Texas at Austin. past used some his writings from Scientific American and books for my students Wagner College, where taught honors lecture astronomy. often corresponded with 1994 to 2018 about concepts astrophysics, he answered many questions that submitted me.I...

We have developed high-resolution methods for mapping nucleosomes, transcription factors (TFs) and their dynamics while minimizing disruption. 1) CUT&RUN (Cleavage Under Targets & Release Using Nuclease) is a chromatin profiling strategy in which antibody-targeted controlled cleavage by micrococcal nuclease releases specific protein-DNA complexes into the supernatant for paired-end DNA sequenci...

Professor van der Lely has been barred from entering her laboratory, accessing her data, managing her grants, using her email, and communicating with her students and colleagues at UCL. This is an extraordinary and unjust punishment. The career of a scientist depends on continuous interaction with students, collaborators, funding agencies, and research subjects. This is especially true for a sc...

In this paper, we consider the role that domaindependent control knowledge plays in problem solving systems. Ginsberg and Geddis (Ginsberg & Geddis 1991) h ave claimed that domaindependent control information has no place in declarative systems; instead, they say, such information should be derived from declarative facts about the domain plus domain-independent principles. We dispute their conc...

Introduction Language typologists and cognitive linguists have put the notion of the semantic map to great use over the last decade, particularly in such works as Haspelmath (1997) on indefinite constructions. Croft (2001, 2003) has also developed the notion of conceptual space in his typological and construction grammar work. Thus far, semantic maps have been the result of empirical research i...