Background: Contrary to the myth that suicides increase around Christmas, multiple studies reveal that suicide rates decrease towards Christmas and return back to normal or even peak in the beginning of the new year. We aimed to replicate this effect for Austria. Methods: The analyses were based on the official suicide statistics 2000 – 2013 using Poission regression and Bayesian changepoint an...

In order to automate the scooping task, it is necessary to obtain the resistive forces acting on the bucket before the scooping is performed. In this study, empirical equations to predict the friction coefficient between the bucket and rocks, the friction coefficient among rocks and particle diameters were obtained by using the resistive forces which are measured at the beginning of the scoopin...

Finding a good research topic is very crucial for a researcher, especially a new researcher, such as PhD student. Generally, a PhD student’s research interest in the beginning is not clear, and he have to spend much time reading a lot of research literatures, step by step, his research preference will become clearer and clearer, and easier to find an advanced research topic in which he is reall...

Information and communication technology (ICT) is widely considered to be an essential factor in qquiring what is commonly known as ‘progress’. The proliferation of this technology has determined the proliferation of social relationships as space-time bonds have been overcome. Moreover, due to widespread communication devices, individuals are more accessible and we are able to reach whoever we ...

The aim of this study was to discover the attitudes and behaviors of Greek Physical Education students towards the subject of computers, and the changes that might have occurred in these attitudes and behaviors, as influenced by general information provided in their classrooms. The sample consisted of 244 freshmen students, 119 males and 125 females. They completed a planned behavior questionna...

It is found that dark energy emerges spontaneously from the higherderivative gravity. According to cosmological scenario, obtained here, the universe inflates for ∼ 10−37sec. in the beginning and late universe accelerates after 8.58Gyrs. During the long intermediate period, it decelerates driven by radiation and subsequently by matter. Emerged gravitational dark energy mimics quintessence and i...

We study a model where agents endowed with power compete for a divisible resource by forming coalitions with other agents. The coalition with the greatest power wins the resource and divides it among its members via proportional sharing. We conduct an economic experiment using this model to investigate possible behavioral factors that may explain deviations from theoretical predictions. The mai...

Although simulations can be useful tools to train dynamic decision making (DDM) skills, studies show that mere practice with simulated environments leads to limited improvements in performance. Simulated environments often show little or no transparency about the underlying structure. Making information about the system and the consequences of decisions available to users has been found to enha...

Authentication codes were introduced by Simmons in [1]. A good survey of the current status can be found in [3]. We start by explaining what authentication codes, with and without arbitration, are and mention some important properties of them. We illustrate these concepts by showing some known schemes. Next we discuss generalised dual arcs, since they can serve as a tool to construct authentica...