Assuming dark matter particles can be pair-produced at the LHC from cascade decays of heavy particles, we investigate strategies to identify the event topologies based on the kinematic information of final state visible particles. This should be the first step towards measuring the masses and spins of the new particles in the decay chains including the dark matter particle. As a concrete exampl...

A study was conducted to examine the effects of nation-states’ political institutions on state relations. War-fighting and selection-effects explanation were compared to explain why democracies were more likely to win wars. An analysis of all interstate wars between 1816 and 1982 revealed that democracies that initiate wars often win them. Results also suggest that domestic political structure ...

Global fits to precision cosmological data which show that there is a dark energy component comprising about 2/3 of the total cosmological energy also hint that a dark energy with w = P/ρ < −1 is viable, even favored. Here we discuss implications of such a surprising w, including whether it jeopardizes vacuum stability. It appears to be secure in microscopic processes, but why bulk dark energy ...

Investors significantly reduce their future returns by selecting mutual funds with higher fees, allured by higher past returns that do not predict future performance. This suboptimal behavior, which can roughly halve an investor’s retirement savings, is driven by two psychological factors. One factor is difficulty comprehending rate information, which is critical given that mutual fund fees and...

This paper presents a novel region-based method for extracting useful information from microscopic images under complex conditions. It is especially used for blood cell segmentation and statistical analysis. The active model detects several inner and outer contours of an object from its background. The method incorporates a local binary fitting model into a maximum regional difference model. It...

in april 2003 iraq with a complicated and problematic conditions, was occupied by forces of us and its allies. this country adopted a constitution in october 2005 through a cumbersome process. deferent elements and factors, with their own backgrounds, have had their impacts on the formulation of the constitution. this paper is an attempt to examine the impact of the local, regional, and interna...

this article discusses the german, ottoman and british rivalries to dominate the oil lands of caucasia just after the bolshevik revolution of russia and surveys the impact of above-mentioned rivalries on the general situation of region. hence, the strategic importance of the region will be discussed from the viewpoints of the three great powers. furthermore, the main military force of britain i...

A by now large literature in regional economics has greatly improved our understanding of the determinants of the observed spatial disparities in productivity. However, this literature neglects what seems to be a robust and persistent fact accompanying regional productivity differences: high productivity regions also have lower unemployment than low productivity regions. In this paper, we set o...

This paper focuses on the dynamic effects under which the regional economic processes are accomplished, breaking them down into two broad types: neighborhood (horizontal) and economywide (vertical) externalities. So, by means of a proposed dynamic space-time empirical model, it is allowed to obtain the vertical and horizontal competition structure within a regional economic system. Co-integrati...