A new role for catecholamines: ontogenesis

Article Abstract:

Studies on chordate and arthropod development show that catecholamines play a significant role in ontogenesis. Catecholamines are synthesized from the amino acid tyrosine in the presence of tyrosine hydroxylase, whose presence in cells signifies possible biosynthesis of catecholamines. This substance has been found in developing neuronal cells of the embryos of chicks, fruit-fly, rats, mice and humans, suggesting that catecholamines also act as morphogens in developing embryos.

Physiological aspects, Catecholamines, Ontogeny

---

The effects of negative affectivity, hierarchical status, and self-determination on workplace victimization

Article Abstract:

Research was conducted to examine workplace victimization and the situations under which victims become the targets of their co-employees' aggressive behavior. Employees of a public utility participated in two surveys which were part of an organizational assessment of workplace victimization. Results demonstrate that negative affectivity and low self-determination lead to workplace victimization.

Workplace violence, Victims of crimes surveys

---

Mawhinney refuses new runways for Heathrow Gatwick

Article Abstract:

Secretary of State for Transport Dr Brian Mawhinney has called for more work on the report from RUCATSE, a working group into runway capacity. He has disallowed extra runway capacity at Heathrow and Gatwick airports and wants further research into greener solutions. Other options include a close parallel runway at Gatwick.

Buildings and facilities, Airports

Similar abstracts:

• Abstracts: Cabling system for the lower depths. Carve it up
• Abstracts: Chart gages perform visual geometry. Kirk Talbott
• Abstracts: A study on shelf space allocation and management. Twins tested
• Abstracts: Straight from the Hart. Pyramids

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.