Let ( , ) G V E be a simple graph. For a total labeling { } : 1,2,3,..., V E k ∂ ∪ → the weight of a vertex x is defined as ( ) ( ) ( ). xy E wt x x xy ∈ = ∂ + ∂ ∑ ∂ is called a vertex irregular total k-labeling if for every pair of distinct vertices x and y, ( ) ( ). wt x wt y ≠ . The minimum k for which the graph G has a vertex irregular total k-labeling is called the total vertex irregularit...

A coarse and a fine dendrite structure were produced using the newly developed DS-superalloy ExAl7 ( IN792 with 2-3 wt.-% Re) by changing the conditions of directional solidification. The two microstructures differed in their primary dendrite arm spacing by a factor of 1.6. During aging, very fine TCP phase precipitates (length approximately 20 m, volume fraction ~ 1 %) were precipitated in the...

From a suitable large cardinal hypothesis, we provide a model with a supercompact cardinal in which universal indestructibility holds: every supercompact and partially supercompact cardinal κ is fully indestructible by <κ-directed closed forcing. Such a state of affairs is impossible with two supercompact cardinals or even with a cardinal which is supercompact beyond a measurable cardinal. Lave...

In three studies we examined the assumption that attitudes can be based on a stable structure of individually important attributes. In the first study we examined if people are able to adequately determine what the attributes are that underlie their attitude by relating meta-attitudinal measures to more operative measures of attribute importance. The results of the operative measures corroborat...

Article history: Received 28 May 2015 Received in revised form 14 September 2016 Accepted 27 October 2016 Available online 9 November 2016 The development of theories and techniques for big data analytics offers tremendous possibility for investigating large-scale events and patterns that emerge over space and time. In this research, we utilize a unique open dataset “The Global Data on Events, ...

If M is both an abelian category and a symmetric monoidal closed category, then it is natural to ask whether projective objects in M are at, and whether the tensor product of two projective objects is projective. In the most familiar such categories, the answer to these questions is obviously yes. However, the category M G of Mackey functors for a compact Lie group G is a category of this type ...

We have remeasured the lifetimes of the 3s24s and levels in Si II using beam foil spectro3s25s 2S1@2 scopic techniques. Measured values for the lifetimes and oscillator strengths derived from them are presented and compared with previous measurements and theoretical calculations. Agreement with recent theoretical calculations is now quite good : for 3s24s it is excellent and for 3s25s it is sat...

This paper presents two main results. The first result indicates that in materials with broadly distributed microscopic heterogeneities, the fracture strength distribution corresponding to the peak load of the material response does not follow the commonly used Weibull and (modified) Gumbel distributions. Instead, a lognormal distribution describes more adequately the fracture strengths corresp...

Spike Timing Dependent Plasticity (STDP) is a learning rule that modifies synaptic strength as a function of the relative timing of pre-and postsynaptic spikes. Here we use this learning rule with neurons integrating spike trains coming from V1 orientation selective cells. Presenting natural images containing faces we observe that the neurons develop selectivity to face features. These results ...

Several important properties associated with light-emitting diode (LED) polymerization lights and dental materials treated using LED technology, such as compressive and flexural strength, bond strength, temperature rise, power density, and material thickness and opacity, have been reviewed in this paper.