the narrow operating window between pore pressure and fracture pressure makes drilling difficult in some operations. a feasibility study of managed pressure drilling (mpd) is carried out on iran darquain oil field. the previous wells drilled in this field showed that mud returns were lost during drilling gadvan formation. the present work addresses this problem by means of surface back pressure...

Following a hypo-deductive theoretical rationale, the relationship between physical attributes, personality development, and susceptibility to peer pressure was assessed. Male and female college students (N = 181) responded to several personality measures previously reported as characteristics attributed to physical attractiveness and a new measure designed to assess peer pressure influences (D...

In developing countries, traditional social obligations often press rich individuals to share their income. In this paper, we posit a “model of social pressure” in which people can sign binding financial agreements among them. These agreements may help to escape social obligations. It turns out that an anonymous and efficient agreement corresponds to one of the most developed and puzzling finan...

Considering that scientific articles have emphasized the link between the onset of sexual life and peer pressure, the aim of this study was to identify peer pressure in the adolescents' sexual initiation from the point of view of their relationship with the group of friends. A cross-sectional study was conducted among 363 15-19 year-old teens that represented a sample ofthe adolescents enrolled...

In this paper we develop a model to simulate the evolution of a pollution-free resource gathering technology that is initially less efficient but ultimately reaches parity with polluting technology. We find that for low levels of pollution, pressure exerted by society can indeed encourage the development and use of non-polluting technology, with greater pressure being associated with faster ach...

Background—Population studies have demonstrated an important role of social, behavioral, and environmental factors in blood pressure (BP) levels. Accounting for the genetic interaction of these factors may help to identify common BP susceptibility alleles. Methods and Results—We studied the interaction of additive genetic effects and behavioral (physical activity, smoking, alcohol use) and soci...