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Diffractive and non-diffractive wounded nucleons and final states in pA collisions

We review the state-of-the-art of Glauber-inspired models for estimating the distribution of the number of participating nucleons in pA and AA collisions. We argue that there is room for improvement in these model when it comes to the treatment of diffractive excitation processes, and present a new simple Glauber-like model where these processes are better taken into account. We also suggest a new

CEO Age, Risk Incentives, and Hedging Strategy

We test if managerial preferences explain how firms hedge using hand-collected data on derivative portfolios in the oil and gas industry. How firms hedge involves choosing between linear contracts and put options, and deciding whether to finance these hedging positions with cash-on-hand or by selling call options. The likelihood of being a hedger increases with CEO age, and near-retirement CEOs pr

Floral scent of joshua trees (Yucca brevifolia sensu lato) : Divergence in scent profiles between species but breakdown of signal integrity in a narrow hybrid zone

PREMISE OF THE STUDY: The role of floral scent in facilitating reproductive isolation between closely related plants remains poorly understood. Yucca brevifolia and Yucca jaegeriana are pollinated by different moth species in allopatry, but in a narrow contact zone, pollinator–host specificity breaks down, resulting in hybridization between species. We explored the chemical basis for reproductive

Methodology for the efficient progressive distribution and visualization of 3D building objects

Three-dimensional (3D), city models have been applied in a variety of fields. One of the main problems in 3D city model utilization, however, is the large volume of data. In this paper, a method is proposed to generalize the 3D building objects in 3D city models at different levels of detail, and to combine multiple Levels of Detail (LODs) for a progressive distribution and visualization of the ci

A five-year follow-up among older people after an outdoor environment intervention

This study investigates older inhabitants’ appreciation of environmental measures taken in their residential area and the effect on perceived difficulty as pedestrians and in outdoor activity. The study is based on data collected with a mailed questionnaire at baseline and at a 5-year follow-up (after intervention) posted to 195 people aged 65+ in a residential area in a medium-sized Swedish town,