We report on the phenomenon of noisefree stochastic multiresonance that appears in a natural way in systems where the threshold crossing probability has a nonmonotonous derivative with respect to the control parameter. In particular, we consider periodically driven chaotic dynamical systems above crisis threshold where the nonmonotonicity is caused by the fractal structure of precritical attrac...

Effort is in progress for spatial and spatiotemporal hotspot detection, early warning, and security. A hotspot can mean an unusual phenomenon, anomaly, aberration, outbreak, elevated cluster, critical area, or object recognition and tracking. The declared need may be for monitoring, etiology, early warning, or management. The responsible factors may be natural, accidental, or intentional. This ...

The current financial and economic crisis is the worst since the stock-market crash of 1929. As with every complex phenomenon, a mixture of causes have been put forward: the housing-market bubble, risky mortgage loans, ‘toxic’ financial products, high personal and corporate debts, inaccurate credit ratings, and much more. The shockwaves have spread so rapidly and hit so hard that entire banking...

Bacterial resistance presents therapeutic dilemmas to clinicians worldwide. The warnings were there long ago, but too few people heeded them. Thus an emerging problem has grown to a crisis. Resistance is an ecological phenomenon stemming from the response of bacteria to the widespread use of antibiotics and their presence in the environment. While determining the consequences of inaction on the...

although capital inflows affect positively economies in long-run, it is possible to generate somehow destructive effects if there is no any control on financial markets. this study tries to explore main determinants of large capital inflows episodes to emerging markets. it is also investigated whether the large capital inflows episodes lead to financial crises in forms of sudden stop phenomenon...

Using particle system methodologies we study the propagation of financial distress in a network of firms facing credit risk. We investigate the phenomenon of a credit crisis and quantify the losses that a bank may suffer in a large credit portfolio. Applying a large deviation principle we compute the limiting distributions of the system and determine the time evolution of the credit quality ind...

This paper explores dynamics involved in the commission of homicide followed by suicide. British and U.S. government and advocacy sources are used in addition to news accounts to examine this phenomenon. Domestic violence-related crimes are contrasted with elderly ‘‘altruistic’’ murder-suicide, school shootings, and political terrorism. Suicide is argued to be a primary motive in many domestic ...

A new recursive regression methodology is introduced to analyze the bubble characteristics of various financial time series during the subprime crisis. The methods modify a technique proposed in Phillips, Wu, and Yu (2011) and provide a technology for identifying bubble behavior with consistent dating of their origi-nation and collapse. The tests serve as an early warning diagnostic of bubble a...

a brief study on the history of 20th century reveals that capitalist system has been facing to political, military and economic crisis including world wars i and ii, economic crisis of 1929 and 1973, economic crisis of southeast of asia in 90s and the current economic crisis. while theories of international political economy have in common with the occurrence of the crisis itself, they are diff...

or 20 years the so-called ‘‘sperm crisis’’ caused unrest among the public as well as the scientific community. Studies precipitated by this virtual crisis have refuted its existence, but have also illuminated hitherto neglected aspects of male reproductive function and indicated a need for prospective, long-term monitoring systems. Since 1992, the so-called ‘sperm crisis’ has lingered in the sc...