ENHANCED AMPLIFICATION OF ATTOSECOND PULSES IN A HYDROGEN-LIKE PLASMA-BASED X-RAY LASER MODULATED BY AN INFRARED FIELD AT THE SECOND HARMONIC OF FUNDAMENTAL FREQUENCY

In a recent work (Antonov et al., Physical Review Letters 123, 243903 (2019)), it was shown that it is possible to amplify a here train of attosecond pulses, which are produced from the radiation of high harmonics of the infrared field of the fundamental frequency, in the active medium of a plasma-based X-ray laser modulated by a replica of the inf

At the end of the 12n/1200 wella 14th century Lisbon experienced days of great anxiety and suffering, due to the wars in which Portugal was involved with Castile, exacerbated by the fact that its already preeminent place in the realm.Convinced that the misfortunes that befell them were divine punishment for the sins committed, the "honourable" citi

Although the advent of laparoscopic fundoplication has increased both patient and physician acceptance of antireflux surgery, it has become apparent that the laparoscopic approach is associated with an increased risk of some complications and as well as the occurrence of new complications specific to this approach.One such complication occurred in

OBJECTIVE: To develop an integrated health forecasting model as part of the International Futures (IFs) modelling system.METHODS: The IFs model begins with the historical relationships between economic and social development and cause-specific mortality used by the Global Burden of Disease project but builds forecasts from endogenous projections of