Improvement of biological control by volatile plant compounds

Compared to conventional farming the pest management strategies in organic farming is based on better plant resistance and sustainable cultivation technique that does not destroy the natural enemies of pest insects. Methods that reduce feeding efforts of pests and maintain strong population of predators and parasitoid on crop plant, are the way forward for sustainable plant protection strategies. Volatile compounds extracted from plants and sprayed on crop plants are one of the key factors for the development of these techniques

Integration of financial supervision

The emergence of financial conglomerates and multinational financial institutions as well as the development of new financial products have raised concerns as to the ability of separate sectoral supervisors and different national authorities to effectively oversee financial markets. Concentrating on the European situation, this paper addresses these concerns by putting special emphasis on the role of organizational form in the supervisory process of financial institutions. I will first outline the developments that have led to increasing pressures to reform the current supervisory systems in Europe, proceed to discuss both some common and specific aspects of supervision of financial conglomerates and multinationals, and, finally, examine the challenges related to the integration of supervision. Using theoretical framework derived from economic theory, this paper points that multitude of factors (eg, several multitasking-related concerns) are likely to affect the effectiveness of integrated supervision.financial supervision; financial conglomerates; multinationals; integration of supervision

Thermal photons from fluctuating initial conditions

Event-by-event fluctuations of initial QCD-matter density produced in heavy-ion collisions at RHIC enhance the production of thermal photons significantly in the region $2 \le p_T \le 4$ GeV/$c$ compared to a smooth initial-state averaged profile in the ideal hydrodynamic calculation. This enhancement is a an early time effect due to the presence of hotspots or over-dense regions in the fluctuating initial state. The effect of fluctuations is found to be stronger in peripheral than in central collisions.Comment: 4 pages, 3 figures. Talk given at Quark Matter 2011, 22-28 May 2011, Annecy, Franc

White dwarfs and Galactic dark matter

We discuss the recent discovery by Oppenheimer et al (2001) of old, cool white dwarf stars, which may be the first direct detection of Galactic halo dark matter. We argue here that the contribution of more mundane white dwarfs of the stellar halo and thick disk would contribute sufficiently to explain the new high velocity white dwarfs without invoking putative white dwarfs of the dark halo. This by no means rules out that the dark matter has been found, but it does constrain the overall contribution by white dwarfs brighter than M_V ~ 16 to significantly less than 1% of the Galactic dark matter. This work confirms a similar study by Reyle et al (2001).Comment: 8 pages, 8 figures. MNRAS style fil

Suicide rates in Maltese Islands (1955-2009) analysed in European context using WHO data

Aim: To calculate the suicide rates (for males and females) in Malta and other European countries with long series of suicide mortality as recorded in the WHO (World Health Organization) database, and compare the Maltese suicide rates with European rates. Method: Suicide rates were computed from the WHO database as rates (suicides per 100,000 persons) using the reported suicide and population counts in Malta and ten other European countries for a common period 1955-2009. Suicide rates were age standardized following the WHO recommendations. These calculations were carried out separately for both sexes. Results: Compared to other European counties, the suicide rates (both male and female) in Malta have remained at considerably low level as calculated over the full period. Maltese suicide rates have however multiplied since the 1980s. European data exhibit clear decrease in suicide rates towards the present consistently in several countries. Malta is the only European country showing its highest suicide rates during the 2000s. Conclusions: Although the suicide rates in Malta remain at considerably low level, they have exhibited a notable increase towards the present, whereas the European suicide rates are in decline. Becoming aware of this fact and the issue may help in building a suicide prevention programme to mitigate the situation.peer-reviewe