We introduce the notion of L2-rigidity for von Neumann algebras, a generalization of property (T) which can be viewed as an analogue for the vanishing of 1-cohomology into the left regular representation of a group. We show that L2-rigidity passes to normalizers and is satisfied by nonamenable II1 factors which are non-prime, have property Γ , or are weakly rigid. As a consequence we obtain tha...

In the present study, we investigated the technique and reliability of measuring digital blood pressure by means of a rigid, airtight container (a bladder-free cuff) and a photocell placed on the digit. As cuff pressure increased, the position of digits in the cuff was maintained in the hand by fixing one or two fingers inside the cuff and, in the foot, by using a supporting stick to keep the d...

In simulations of decaying two-dimensional turbulence, Clercx et al [1, 2] discovered the unexpected phenomenon of “spin-up”. (This is the spontaneous acquisition of angular momentum by a turbulent 2-D fluid in a rigid container.) Here we show that this phenomenon can readily be interpreted in terms of statistical models of two-dimensional turbulence. When the net vorticity is zero in a bounded...

Tris(2- and 3-ureidobenzyl)amines with C(s) symmetry self-assemble in solution forming mixtures of regioisomeric capsular aggregates, one of which is chiral and the other centrosymmetric. Under certain conditions, a predominance of the centrosymmetric regioisomer is found before equilibrium, that is, a mixture close to the statistical ratio of the two species is reached. In the solid state, th...

the effects of cattle manure vermicompost on the growth and productivity of cymbidium (cymbidium sp.) plants were evaluated under shade conditions. cymbidium was grown in a container medium including 50% pumice, 30% charcoal, 10% vermiculite and 10% peat moss, which was basic plant growth medium substituted with 10%, 20%, 30% and 40% (by volume) vermicompost. the control consisted of container ...

The centuries-old idea of a lighter-than-air vacuum balloon has not materialized yet as such structure needs to be both light enough float in the air and strong withstand atmospheric pressure. We propose design rigid spherical sandwich shell demonstrate that it can satisfy these stringent conditions with commercially available materials, boron carbide ceramic aluminum alloy honeycomb. A finite ...

This is a reply to Timothy Williamson’s paper ‘Tennant’s Troubles’. It defends against Williamson’s objections the anti-realist’s knowability principle based on the author’s ‘local’ restriction strategy involving Cartesian propositions, set out in The Taming of the True. Williamson’s purported Fitchian reductio, involving the unknown number of books on his table, is analyzed in detail and shown...

This paper focuses on three research questions which are connected with combinations of modal logics: (i) Under which conditions can (frame-)completeness (and related properties) be transferred from a propositional modal logic (PML) to its quantificational counterpart (QML)? (ii) Does (frame-) completeness generally transfer from monomodal QMLs to their multimodal combination? (iii) Can complet...

We introduce the notion of L2-rigidity for von Neumann algebras, a generalization of property (T) which can be viewed as an analogue for the vanishing of 1-cohomology into the left regular representation of a group. We show that L2rigidity passes to normalizers and is satisfied by nonamenable II1 factors which are non-prime, have property Γ, or are weakly rigid. As a consequence we obtain that ...