Filtyp
The major uncertainty in predicting the influence of human activities on global climate change is the effect of aerosols. Two physical properties of aerosols largely controlling their influence on climate are the particle number size distribution and the interaction of the particles with the surrounding water vapor. The work presented in this thesis provides new information on the interaction bet
Popular Abstract in Swedish En cell är uppbyggd av många olika ämnen som är livsviktiga för dess liv. Polyaminerna – putrescin, spermidin och spermin – är några av dessa ämnen. Celler måste ha tillräckligt mycket polyaminer för att tillväxten ska ske normalt: för lite gör att cellerna slutar att dela sig och för mycket kan omvandla celler till cancer celler. Kunskap om vad polyaminer gör och hur The polyamines, putrescine, spermidine, and spermine, are essential for all forms of life. The polyamine biosynthetic pathway has been shown to be a potential target for drugs against various trypanosomal parasitic diseases. The two main enzymes in the biosynthesis of polyamines are ornithine decarboxylase (ODC) and S-adenosylmethionine decarboxylase (AdoMetDC). ODC catalyzes the first step of pol
Abstract is not available
The Hipparcos mission (1989-1993) resulted in the first space-based stellar catalogue including measurements of positions, parallaxes and annual proper motions accurate to about one milli-arcsecond. More space astrometry missions will follow in the near future. The ultra-small Japanese mission Nano-JASMINE (launch in late 2013) will determine positions and annual proper motions with some milli-arc
Under the Leonardo da Vinci – Lifelong Learning Programme (LLP) – there is a sub-programme, Transfer of Innovation (ToI). ToI is funding projects which further develop previous project outcomes. This paper deals with a new pilot project under ToI, eGIS+, which has received funding for two years (2007 – 2009). eGIS+ further develop a previous pilot project, E-GIS (European Level Developments of Fle
This chapter describes tonal features of Halh Mongolian. Mongolian belongs to edge-prominence languages: Halh speakers either use available boundary tones or insert a tonal boundary for different pragmatic meanings. Most tonal variation occurs utterance finally, while phrasing and focusing are signaled phrase initially at the left edge of prosodic units.
The thesis is focused on two major subjects: - Calculation of free energy is of great help in the study of any molecular system. The free energy determines phase behaviour of colloids and polymer solutions. It also controls the conformational properties of single macromolecules, e.g. DNA, proteins, copolymers. One of the most robust computer simulation techniques for free energy estimation is an
Popular Abstract in Swedish Proteiner är uppbyggda av aminosyror som är hopkopplade med varandra och bildar långa kedjor som kan bestå av hundra- eller tusentals aminosyror. Det finns en mängd olika proteiner och de har många olika funktioner. I studierna som beskrivs här, har proteiner som finns på ytan av vissa bakterier studerats. De långa proteinkedjorna i dessa bakteriella ytproteiner är oftPeptostreptococcus magnus and group C/G streptococci are Gram-positive cocci that are part of the normal flora and reside in more or less the same locations in the host. Protein G of group C/G streptococci was originally described as binding IgGFc of several species and later shown to also bind human serum albumin and albumins from various animal species. From albumin-binding strains of P. magnus
The purpose of the IAU Meteor Data Center is to archive, document anddisseminate information on meteoroid orbits. At present 4581 preciselyreduced photographic recordings, 1425 video recordings and 63330 radardetermined orbits are archived at the center.
The chapter traces the development of the international response to the pandemic of HIV/AIDS from the designation of the World Health Organization (WHO) as “lead agency” in the late 1980s to the emergence of a variety of public-private partnerships from the 1990s onwards. This trajectory is related to general trends in global public health governance. Existing partnerships in the field of HIV/AIDS
There is a rhetoric in current European political agenda for widening access to ICT’s as part of a strategy for encouraging greater participation in public life. We argue against a naïve assumption that technology in itself could provide solutions. Knowing that systems with potential for meaningful use are available is a necessary, but not sufficient, condition to bring about desire for use in any
A frame of reference is presented intended to capture conditions that influence the usability of information technologies, primarily computers, in a society. The frame of reference includes four components that influence one another: 1. External physical conditions, 2. Economic resources (including other technological resources), 3. Social actors and their interests, and 4. the Understanding, con
