Applications of panel unit root tests have become commonplace in empirical economics, yet there are ambiguities as how best to interpret the test results. This note clarifies that rejection of the panel unit root hypothesis should be interpreted as evidence that a statistically significant proportion of the units are stationary. Accordingly, in the event of a rejection, and in applications wher...

Let P(t) denote an infinitely long right triangular prism whose base is an equilateral triangle of edge length t. Let F (t) be the family of those subsets of P(t) that are congruent to a regular tetrahedron of unit edge. We present complete classification of the members of F (t) modulo rigid motions within the prism P(t), for every t > 0.

This paper is expository. It is mainly a survey of some of our work on the algebraic systems that arise in fuzzy set theory and logic. We include some of the proofs here and refer to the papers [18, 19, 20, 21, 22] for further details. Our point of view is the algebraic one: when are the various systems that arise isomorphic, and what are their symmetries (automorphisms)? The bulk of the materi...

UNLABELLED Indirect resin composites are generally regarded to have better color stability than direct resin composites since they possess higher conversion degree. OBJECTIVE The present study aimed at comparing the changes in color (ΔE) and color coordinates (ΔL, Δa and Δb) of one direct (Estelite Sigma: 16 shades) and 2 indirect resin composites (BelleGlass NG: 16 shades; Sinfony: 26 shades...

Recently increasing penetration of renewable energy generation brings challenges for power system operators to perform efficient power generation daily scheduling, due to the intermittent nature of the renewable generation and discrete decisions of each generation unit. Among all aspects to be considered, unit commitment polytope is fundamental and embedded in the models at different stages of ...

Using subfragments of the simian virus 40 (SV40) core origin, we demonstrate that two alternative modules exist for the assembly of T-antigen (T-ag) double hexamers. Pentanucleotides 1 and 3 and the early palindrome (EP) constitute one assembly unit, while pentanucleotides 2 and 4 and the AT-rich region constitute a second, relatively weak, assembly unit. Related studies indicate that on the un...

Given a vertex-weighted tree T , the split of an edge xy in T is min{sx(xy), sy(xy)} where su(uv) is the sum of all weights of vertices that are closer to u than to v in T . Given a set of weighted vertices V and a multiset of splits S, we consider the problem of constructing a tree on V whose splits correspond to S. The problem is known to be NP-complete, even when all vertices have unit weigh...

Medium conditioned in the presence of human HUT-102 T-cell line cells contains activities stimulating human mixed (colony-forming unit, erythroid, granulocyte, macrophage, megakaryocyte) and erythroid (burst-forming unit, erythroid) colony formation in methylcellulose in vitro and granulocyte colony formation in diffusion chambers in mice. The stimulatory effect of HUT-102-conditioned medium on...

1. Oxidative phosphorylation and respiratory enzyme activities were measured in the mitochondria from the non-involved lobe of the liver in eighteen patients with massive tumour mainly localized to one lobe and from the regenerating livers of partially hepatectomized rats treated with chloramphenicol. 2. In patients, the concentrations of cytochrome a(t) varied from 40 to 170 pmol/mg of protein...

We prove that the $\mathbb{F}_p[[t]]$-standard Hausdorff spectrum of a compact $\mathbb{F}_p[[t]]$-analytic group contains real interval and it coincides with full unit when is soluble. Moreover, we show classical Chevalley groups over $\mathbb{F}_p[[t]]$ not full, since 1 an isolated point thereof.