In this paper, we suggest how to handle the issue of heteroskedasticity measurement errors when specifying dynamic models for conditional expectation realized variance. We show that either adding a GARCH correction within an asymmetric extension HAR class ( AHAR - ), or working multiplicative error AMEM ) greatly reduces need quarticity/quadratic terms capture attenuation bias. This feature in ...

agricultural insurance is one of the most important mechanisms to providing security for investment in agricultural and natural damage reduction. one of the modern types of insurance is weather index- based insurance that developed based on climatic parameters such as rainfall and temperature. the purpose of this study is to identifying the factors affecting wheat farmer's participation on...

there are continuous connections between a city and its periphery and the form of these relations varies. collection of these relations makes an influential area forming the various relations between the city and periphery. these relations are not the same and do not have unique concentration and density rather, they hey depend on population, geographic conditions and the role of the city in th...

1. The multidimensional character of seismicity: time, space, and earthquake focal mechanism need to be modeled. The latter is a symmetric second-rank tensor of a special kind. 2. The intrinsic randomness of earthquake occurrence, necessitating the use of stochastic point processes and appropriate complex statistical techniques. 3. The scale-invariant or fractal properties of earthquake process...

BACKGROUND Few clues were found in the literature about the independent risk factors for PTSD among earthquake survivors in Sichuan province three years after the 2008 earthquake. Ours was the first case-control study with matching factors of age and distance from the epicenter among survivors age 16 years or older, three years after the catastrophe. OBJECTIVES To identify independent risk fa...

Department of Biological Physics, Eötvös University, Budapest, Hungary, Department of Mathematics, University of Turku, Turku, Finland, Department of Genetics, Eötvös University, Budapest, Hungary, Adaptive Dynamics Network, International Institute for Applied Systems Analysis, Laxenburg, Austria, Section Theoretical Evolutionary Biology, Institute of Evolutionary and Ecological Sciences (EEW),...

• allow teleparticipation by remote users in tests performed in any of the three laboratories, • provide open access to consistently formatted data from tests in the three laboratories, • enable synchronous distributed tests between the three laboratories, maximising the size of structure that can be tested, and • allow the laboratories to link into the US NEES network, giving access to advance...

ABSTRACT The method described in Part 1 of this paper was applied to about 30 earthquakes in various parts of the world. The modified single couple hypothesis proposed in Part 1 appears to explain the observations generally better than the double couple hypothesis. Surprisingly consistent pictures of tectonics were obtained in the Mediterranean region and in Japan on the basis of the modified s...

On March 11, 2011 an unusually strong earthquake, now called the Tohoku earthquake, occurred off the north-eastern coast of Japan's main island, Honshu. While the earthquake caused some destruction, the ensuing tsunami about three quarters of an hour later largely destroyed numbers of towns and devasted cities such as Sendai. http://earthquake.usgs.gov/earthquakes/eqarchives/poster/2011/2011031...

OBJECTIVE The features of earthquake-related head injuries may be different from those of injuries obtained in daily life because of differences in circumstances. We aim to compare the features of head traumas caused by the Sichuan earthquake with those of other common head traumas using multidetector computed tomography. METHODS In total, 221 patients with earthquake-related head traumas (th...