The possibility of using high-power lasers to generate high-quality beams of energetic ions is attracting large global interest. The prospect of using laser-accelerated protons in medicine attracts particular interest, as these schemes may lead to compact and relatively low-cost sources. Among the challenges remaining before these sources can be used in medicine is to increase the numbers and ener

Popular Abstract in Swedish Proteinstrukturmodellering-att gissa struktur och funktion (artikel I och manuskript I) Proteiner har många funktioner i cellens komplicerade maskineri. Ett protein består kemiskt av en rad sammmanlänkade byggstenar, aminosyror, varav det finns 20 olika mest förekommande. En proteinkedja viker ihop sig enligt ett speciellt mönster för att och bilda ett funktionellt proKnowledge of biomolecules three-dimensional structure has provided a detailed understanding of their function. In recent years the number of new protein sequences has far exceeded the number of protein experimental structure determinations. One goal of the new field of protein structural bioinformatics is to provide reliable and automated protein functional annotations and initial protein structur

This chapter explores the expansion of the Tupian peoples across greater Amazonia to better understand the mechanisms and processes of cultural and linguistic contact and change. Tupian languages are or were spoken among indigenous groups distributed from the Brazilian Atlantic coast through Paraguay to the eastern Andean slopes of Peru. The investigation uses GIS (Geographical Information Systems

A previous study compared two student groups that played a mathematics game based on a teachable agent. One group played with, and the other without, the inclusion of a social conversation module: a chat between the student and the teachable agent. Results were that students who used the game with the chat included had a more positive experience of the game and learned more in the sense of teachin

Within this paper a simulation model of a hierarchical structure with three levels with different wireless systems is presented and investigated. The analysis is placed on a cellular level to better understand the user behavior. Modeled is a city environment, where the focus is made on the inter-system handovers between the different wireless systems and how they are affected by the change of diff

Kemiteknikprogrammet fick en ny utbildningsplan 2001. Enligt den gamla utbildningsplanen fanns det en valfri kurs i numerisk analys under årskurs 4 med ett fåtal studenter. I den nya utbildningsplanen integrerades numeriska metoder med kemiteknik redan under första terminen. Metoder undervisas där problemställningen finns. Vi har valt att kalla undervisningen i numeriska metoder för beräkningstekn

The region of neutron-rich nuclei beyond 208Pb has been very difficult to explore due to its high mass and exoticity. However, recent experimental improvements allowed one to perform a quite extended isomer decay spectroscopy of these nuclei.

Dissociation of a 227 MeV/u 8He beam in a lead target has been studied in a kinematically complete experiment. The results are compared with similar data from the well-known halo nucleus 6He. Coulomb–nuclear interference in the inelastic channel gives evidence for a Iπ=1− resonance in 8He at Ex=4.15 MeV. The deduced B(E1) value of 0.38±0.07 e2 fm2 indicates a uniform distribution of the four neutr