Let V be a nite relational vocabulary in which no symbol has arity greater than 2. Let M be countable V -structure which is homogeneous, simple and 1based. The rst main result says that if M is, in addition, primitive, then it is strongly interpretable in a random structure. The second main result, which generalizes the rst, implies (without the assumption on primitivity) that if M is coordinat...

A fundamental goal of ecology is to understand what controls the distribution and abundance of species. Both environmental niches and trade-offs among species in dispersal and competitive ability have traditionally been cited as determinants of plant community composition. More recently, neutral models have shown that communities of species with identical life-history characteristics and no ada...

During conversation, there is often little gap between interlocutors' utterances. In two pairs of experiments, we manipulated the content predictability of yes/no questions to investigate whether listeners achieve such coordination by (i) preparing a response as early as possible or (ii) predicting the end of the speaker's turn. To assess these two mechanisms, we varied the participants' task: ...

Many commentators have criticized current anti-discrimination law on the grounds that it does not adequately prohibit unconscious bias in employment decisions. That claim is wrong: Unconscious bias is fully actionable, and it can generally be proved by knowledgeable employment lawyers. The idea behind unconscious bias is that well-meaning employers and supervisors, who would likely consider the...

The sharpened No-Free-Lunch-theorem (NFL-theorem) states that, regardless of the performance measure, the performance of all optimization algorithms averaged uniformly over any finite set F of functions is equal if and only if F is closed under permutation (c.u.p.). In this paper, we first summarize some consequences of this theorem, which have been proven recently: The number of subsets c.u.p....

A lthough the contact system (consisting of fXII, prekallikrein, and high-molecularweight kininogen) has been known for decades, its role in coagulation has been limited to diagnostics where it plays an essential role in the activated partial thromboplastin time. Deficiencies in either fXII, prekallikrein, or high-molecular-weight kininogen have not been associated with a bleeding tendency, whi...

In spite of the very common opinion we show that QM is not complete and that it is possible to create prequantum models providing finer description of physical reality than QM. There exists (at least in theoretical models) dispersion free states and the Heisenberg uncertainty principle can be violated. Thus in spite of all " No-Go " theorems Bell) we found a realist basis of quantum mechanics. ...

We present a feedback design solution for a user interface about a dynamic web service recomposition, which exhibited trust issues in an accompanying questionnaire study. By examining the design in detail and identifying the factors (as well as their interrelations) that caused the distrust, we discuss what could be done to avoid distrust through design in the future.

We show that coresets do not exist for the problem of 2-slabs in IR, thus demonstrating that the natural approach for solving approximately this problem efficiently is infeasible. On the positive side, for a point set P in IR, we describe a near linear time algorithm for computing a (1+ε)-approximation to the minimum width 2-slab cover of P . This is a first step in providing an efficient appro...