We report ultrafast femtosecond transient absorption measurements of energy-transfer dynamics for the antenna protein phycoerythrin 545, PE545, isolated from a unicellular cryptophyte Rhodomonas CS24. The phycoerythrobilins are excited at both 485 and 530 nm, and the spectral response is probed between 400 and 700 nm. Room-temperature measurements are contrasted with measurements at 77 K. An ev...

This article seeks to support the earlier dating of campaigns on Roman eastern frontier in 540s. It addresses points made a recent contribution by Michael Whitby, who argued that traditional chronology, which places invasion Persarmenia 543 and Persian siege Edessa 544, should be retained. The demonstrate grounds he offers are inadequate concludes therefore dating, according Romans invaded autu...

OBJECTIVES To determine the prevalence of symptoms of depression, anxiety and stress among secondary school girls. METHODS A cross- sectional study was carried out on secondary school girls in Abha city, Aseer Region, Saudi Arabia, using the Arabic version of the Depression, Anxiety, and Stress Scale (DASS-42). RESULTS Of 545 female students recruited in this study, 73.4% had the symptoms o...

OBJECTIVE We studied and compared the attitudes of pregnant women v new mothers in an attempt to confirm changing patterns of maternal response towards medical ethical decision making in critically ill or malformed neonates. DESIGN Data were obtained by questionnaires divided into three sections: 1. sociodemographic; 2. Theoretical principles which might be utilised in the decision-making pro...