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The emission of high-order harmonics in the extreme ultraviolet range from the interaction of a short, intense laser pulse with a grating target is investigated experimentally. When resonantly exciting a surface plasmon, both the intensity and the highest order observed for the harmonic emission along the grating surface increase with respect to a flat target. Harmonics are obtained when a suitabl

I discuss some recent development of Monte Carlo event generators and point out some problems. Starting with the issue of combining matrix element generators and parton shower algorithms, I will continue with discussing the problems associated with describing small-x final states and discuss some recent model developments for describing multiple partonic scatterings and underlying events in hadron

The excitation of surface plasmons with ultra-intense (I ∼ 5 × 1019 W/cm2), high contrast (∼1012) laser pulses on periodically modulated solid targets has been recently demonstrated to produce collimated bunches of energetic electrons along the target surface [Fedeli et al., Phys. Rev. Lett. 116, 015001 (2016)]. Here, we report an extensive experimental and numerical study aimed to a complete char

Speciation is the process that generates biodiversity, but recent empirical findings show that it can also fail, leading to the collapse of two incipient species into one. Here, we elucidate the mechanisms behind speciation collapse using a stochastic individual-based model with explicit genetics. We investigate the impact of two types of environmental disturbance: deteriorated visual conditions,

Svenska EU-parlamentariker har visat att det går att driva på för en aktiv klimat- och miljöpolitik inom EU, skriver Markku Rummukainen, professor i klimatologi, och Roger Hildingsson, statsvetare och forskare i klimatpolitik.

Translations of a number of poems by Swedish poet Lasse Söderberg (b. 1931). Translations made by Lars Gustaf Andersson and Carolyn ForchéTranslations of poems by Swedish poet Lasse Söderberg (b. 1931).

We discuss some aspects of the current status of event generators for small-x DIS. In particular we report on recent results using the CCFM evolution implemented in the SMALLX and CASCADE program concerning the importance of the so-called consistency constraint, and compare with the linked dipole chain model implemented in the LDC program. We point out some potential problems with the resolved vir

Background:Re-ablement is an approach aiming at improve home-care services for older people and to enable and support active engagement in everyday activities. An important responsibility for occupational therapists (OT) is to educate and support home care personnel, by coaching, mentoring and teaching them to work together with the clients to support their management of everyday activities as far