background there are many risky behaviors that threat adolescents and must receive specific attention. research has shown that personality pattern behaviors have a significant relationship with risky behaviors. objectives the objective of this study was to clarify the role of personality pattern behaviors in risky behaviors of high school students in chabahar city. patients and methods three hu...

This paper critically examines how risk-taking behaviors can be modeled from a decision-making perspective. We first review several applications of a decision perspective to the study of risk-taking behaviors, including studies that investigate consequence generation and the components of the overall utility (i.e., consequence, desirability, and likelihood) of risk-taking and studies that inves...

The evolution of Earth's climate on geological timescales is largely driven by variations in the magnitude of total solar irradiance (TSI) and changes in the greenhouse gas content of the atmosphere. Here we show that the slow ∼50 Wm-2 increase in TSI over the last ∼420 million years (an increase of ∼9 Wm-2 of radiative forcing) was almost completely negated by a long-term decline in atmospheri...

The dual systems model posits that adolescent risk-taking results from an imbalance between a cognitive control system and an incentive processing system. Researchers interested in understanding the development of adolescent risk-taking use a diverse array of behavioral and self-report measures to index cognitive control and incentive processing. It is currently unclear whether different measur...

We compare four different risk-taking propensity measures on their ability to describe and to predict actual risky behavior in the domain of health. The risk-taking propensity measures we compare are: (1) a general measure of risk-taking propensity derived from a one-item survey question (Dohmen et al., 2011), (2) a risk aversion index calculated from a set of incentivized monetary gambles (Hol...

The fast changing environment and the complexity of projects has increased risk exposure. The PMBOK proposes a structured risk management process, integrated within the overall project management framework. However, unresolved difficulties call for further developments in the field. In projects, risks take place within a complex web of numerous interconnected causes and effects, which generate ...