In order for airports to manage the bird strike risk effectively, a risk assessment process needs to be carried out to identify the major hazards at the airport, the levels of risk that they produce, and the most cost effective means of reducing that risk. Despite the fact that bird controllers, managers and consultants make informal bird strike risk assessments throughout their working lives, ...

Postencounter and circa-strike defensive contexts represent two adaptive responses to potential and imminent danger. In the context of a predator, the postencounter reflects the initial detection of the potential threat, whereas the circa-strike is associated with direct predatory attack. We used functional magnetic resonance imaging to investigate the neural organization of anticipation and av...

The authors examined how dispute-related stressors predicted strain experienced by third parties (N = 270) and their perceptions of a potential strike by part-time faculty. Immediately preceding a strike deadline, the authors surveyed students on their support for the union, perceived fairness, perceived effects of the impending strike, and perceived control. The authors also measured perceptio...

1Child Growth and Development Research Center, Pediatric Pulmonology Department, Research Institute of Primordial Prevention of NonCommunicable Disease, Isfahan University of Medical Sciences, Isfahan, IR Iran 2Imam Hassan Mojtaba Hospital, Alborz University of Medical Sciences, Karaj, IR Iran 3Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, T...

Carboniferous strata in the Alborz mountains consist of calcareous rich fossils the main part of which is composed of rugose corals. There have been few studies carried out on corals so far. In this paper, a new subfamily, genus and eight new species of rugose corals from Mobarak limestones in the central Alborz mountains are introduced

Bird strikes usually occur due to the entry of aircraft into the bird layer, i.e. the region up to which birds fly in the sky and are common during landing or takeoff 1. Along with the financial losses, bird strike also reduces the mission capability of the crew, loss of flying hours, permanent damages to the aircraft and importantly , it is always associated with the risk of mortality 2–6. The...

Background: Mammals utilise an XX/XY system of sex determination in which the Y-linked gene SRY (Sexdetermining region Y) exerts a dominant masculinising influence on sexual development. Sex chromosome homology and comparative sequence studies suggest that SRY evolved from the related SOX3 gene on the X chromosome, although there is no direct functional evidence to support this hypothesis. The ...