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Disturbances in the pressure homeostasis of the middle ear (ME) system cause a pressure gradient across the tympanic membrane lessen the effectiveness of sound transmission and may be associated to development of chronic ME disease. An equipment for continuous direct pressure measurements was developed and was found to be accurate, base-line stabile and portable. Long term pressure measurements an
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
