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The first three US Presidents of the century have, to say the least, had differing views concerning the nature of climate change and how this issue is addressed most appropriately – as noted by the fact that the issue has gone back and forth between being a security issue and basically disappearing from the security agenda altogether. In order to shine a light on how this has happened, this study
Human pluripotent stem cell-derived in vitro models, combined with advances in high-content live-cell calcium imaging, provide a powerful platform for disease modeling and drug screening. However, most calcium imaging analysis tools have been developed for in vivo applications with suboptimal features for processing data from cultured neurons. Here, we present LUMIN (Live-cell User Module for Imag
Popular Abstract in Swedish I Big Bang skapades 3 grundämnen: H, He, och spår av Li. Alla andra grundämnen har bildats i stjärnor. Lågmassiva stjärnor som vår sol kan genom kärnreaktioner skapa grundämnen upp till och med syre i det periodiska systemet, medan mer massiva stjärnor kan skapa grundämnen ända upp till järn. Tyngre grundämnen än järn produceras in slutstadierna av stjärnornas liv, tillAll the elements heavier than Li are created during stellar evolution. Even if our knowledge of this process is good, many questions still remain. For instance, the odd-Z iron-peak elements Sc, V, Mn, and Co together with neutron-capture elements Sr, Zr, La, Ce, Nd, Sm, and Eu have still unclear production sites because theoretical models and observational evidences are not in agreement. Having a
Popular Abstract in Swedish I många utvecklingsländer i tropiska klimat leder den snabba urbaniseringen till många problem, bl a försämrad termisk komfort i utemiljön. Detta har negativa följder för människors hälsa och välbefinnande och påverkar sociala och kommersiella aktiviteter utomhus negativt. Följaktligen är det mycket viktigt att åstadkomma komfortabla mikroklimat i urban miljö. Den huvuIn many developing tropical countries, rapid urban growth leads to several problems, including increased thermal stress. This has negative consequences for people's health and well-being, and affects social and commercial outdoor activities negatively. Consequently, the creation of thermally comfortable microclimates in urban environments is highly important. The main aim of this thesis is to dee
A stirred tank membrane reactor is used to study the kinetics of polygalacturonic acid (PGA) enzymatic hydrolysis. The reactor operates in semicontinuous configuration: the native biopolymer is loaded at the initial time and the system is continuously fed with the buffer. The effect of retention time (from 10 1 to 142 min) and membrane molecular weight cutoff (from I to 30 kDa) on the rate of perm
Lignocellulose hydrolysate is an abundant substrate for bioethanol production. The ideal microorganism for such a fermentation process should combine rapid and efficient conversion of the available carbon sources to ethanol with high tolerance to ethanol and to inhibitory components in the hydrolysate. A particular biological problem are the pentoses, which are not naturally metabolized by the mai
Popular Abstract in Swedish Denna avhandling behandlar två ämnen inom trådlös kommunikation: interferens mellan frekvenshoppande (FH) nätverk och fleranvändardiversitet. I arbetet på FH nätverk undersöks ett system där frekvenshopp används för att möjliggöra samtidig tillgång till kanalen för multipla okoordinerade nätverk. Detta åstadkoms genom att frekvenshoppen sker varje gång ett ny paket skaThis thesis deals with two topics in wireless communications: interference between frequency-hopping (FH) networks, and multiuser diversity. The work on FH treats a system where FH is used to provide simultaneous access to the channel for multiple uncoordinated wireless networks. This is achieved by performing frequency hops on a packet-by-packet basis, and letting the sequence of hopping frequen
The highest-spin discrete states (I ∼ 60 ℏ and Ex ∼ 30 MeV) in normal deformed nuclei have been observed in the rare-earth isotope 156Dy using the 124Sn(36S,4n) reaction in conjunction with the GAMMASPHERE spectrometer. The positive parity yrast sequence appears to evolve smoothly from a prolate (collective) towards an oblate (non-collective) shape, in contrast to the sudden shape change observed
Popular Abstract in Swedish Atomspektra har varit ett viktigt forskningsområde inom fysiken sedan mitten av 1800-talet. Då elektromagnetisk strålning, såsom synligt ljus, ultraviolett- och röntgenstrålning, är unik för varje grundämne ger ett observerat spektrum information om vilka slags atomer som emitterar strålningen. Exempelvis så visar spektra av ett vanligt lysrör att ljuset kommer från kviThe spectra of highly charged tungsten ions have been investigated using x-ray and extreme ultraviolet spectroscopy. These heavy ions are of interest in relativistic atomic structure theory, where high-precision wavelength measurements benchmark theoretical approaches, and in magnetic fusion research, where the ions may serve to diagnose high-temperature plasmas. The work details spectroscopic in
The cost efficiency of the biorefining process can be improved by extracting high-molecular-mass hemicelluloses from lignocellulosic biomass prior to ethanol production. These hemicelluloses can be used in several high-value-added applications and are likely to be important raw materials in the future. In this study, steam pretreatment in an alkaline environment was used to pretreat the lignocellu
Transient evoked otoacoustic emissions (TEOAEs) have been analyzed for objective assessment of hearing function and monitoring of the influence of noise exposure and ototoxic drugs. This paper presents a novel application of the Hilbert-Huang transform (HHT) for detection and time-frequency mapping of TEOAEs. Since the HHT does not distinguish between signal and noise, it is combined with ensemble
Comparative research related to any aspect of the process of breach in either the pretrial, sentencing or release phases is relatively rare. Comparative studies of decision making in the specific context of breach process are particularly lacking. One reason for the dearth of research in this area is the many challenges presented by comparative research across different jurisdictions. This article
I samband med lantmäteriförrättningar där ersättningsbeloppet behöver framtas med hjälp av de värderingsmedel som Lantmäteriet eller utsedd värderingsman har att tillgå är det ytterst viktigt att ingångsparametrarna är korrekta. Då fastighetsregleringar där vinstfördelning blir aktuellt och där genomsnittsvärdeprincipen aktualiseras är det råtomtmarksvärdet som eftersöks. I värderingsutlåtandet reDuring land surveying operations, the amount of compensation needs to be calculated using the valuation means taken by the land surveyor or appointed appraiser. For this reason, it is important that input parameters are correct. As profit distribution is a pressing concern in relation to real estate regulations, raw land value is sought after. In this case, the responsible land surveyor reports fo
The effects of dryer fabric cooling were studied. Using a dryer fabric cooled to a temperature below the dew point of the air-vapour mixture resulted in condensation of water vapour in the fabric structure. This condensation process was studied by means of a small-scale dynamic pilot dryer. The novel model on mass and heat transport in dryer fabrics, described in part 1, was validated against expe
