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Using spectra of RR Lyrae stars in the Small Magellanic Cloud (SMC) a metallicity snapshot from an early epoch in the history of the SMC could possibly be obtained. The SMC, one of our closest neighbours in the Local Group of galaxies, offers the opportunity to study another galaxy close-up. The history of the SMC can be traced using the chemical characteristics of its different generations of sta
Anion exchange membranes (AEMs) carrying N-spirocyclic quaternary ammonium cations generally have a high alkaline stability because the unstrained ring conformations of this type of bicyclic cation. Here, we have prepared a series of N-spirocyclic quaternary ammonium ionenes (spiro-ionenes) using a diphenyl-functionalized monomer with a di-N-spiro-isoindolium moiety containing two N-spiro cations.
selected photographs Dreams and creativity was the topic for the third category. Dreams can be individual and collective and shared by a whole generation, and they are often shaped by socio-economic realities of different times and places. Cities can be sites of dreams for migrants who move there but their dreams might not be fulfilled. Cities are also often seen as creative places as they attract
https://www.ace.lu.se/dreams-and-creativity - 2026-07-01
Households base their choices of heating systems on subjectively dependent conceptions of heating sources, rather than on an understanding of a complex reality. Similar to other agents in society, households need to construct simplified frames to be able to make their choices possible to manage. Using in-depth interviews with households in Småland (in Sweden) with a few comparisons from Massachuse
Hematopoietic cells have secretory lysosomes that degranulate at the inflammatory site upon stimulation. We asked whether one could target exogenous proteins with a therapeutic potential to secretory lysosomes in hematopoietic cells. For this purpose, we expressed a soluble tumor necrosis factor (TNF) receptor form (sTNFR1) in hematopoietic cell lines. In order to accomplish targeting to secretory
Abstract in UndeterminedIn today's technology generations, e.g. 90 and 65 nm, the static power consumption becomes a major contributor to the total power consumption. This paper focuses on the arithmetic level and shows a methodology for a substantial reduction of the static power consumption. Simulations are done in a typical 130 nm technology. Based on the simulation results, the static power in
Particles of RuSeMo and RuSnMo have been produced by ball milling; they present catalytic activity towards the oxygen reduction reaction (ORR) in acid media. A Tafel slope close to 120 mV/dec was found for both materials. Their morphology was first characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM images reveal particles in the sub-micromet
The limited tolerance of Saccharomyces cerevisiae to the inhibitors present in lignocellulosic hydrolysates is a major challenge in second-generation bioethanol production. Short-term adaptation of the yeast to lignocellulosic hydrolysates during cell propagation has been shown to improve its tolerance, and thus its performance in lignocellulose fermentation. The aim of this study was to investiga
At the 3 GeV ring of the MAX IV Laboratory, a fourth-generation ring-based synchrotron light source, an asymmetric influence of the sign of the amplitude-dependent tune shift (ADTS) on the transverse mode-coupling instability has been observed. Measurements of the instability, in dedicated single-bunch experiments at low chromaticity, revealed a significant dependence of the dynamics of the instab
This research aims to develop efficient process technologies that are capable of converting/utilising CO2 streams into energy-rich liquid products (fuels). This would result in better solutions with near-zero-carbon-emissions level. From an energetic and economic point of view, methanol synthesis from CO2 is a competitive alternate to methanol production from biomass. Our work considers the CO2 ba
Fuel cells produce low quantities of local emissions, if any, and are therefore one of the most promising alternatives to internal combustion engines as the main power source in future vehicles. It is likely that urban buses will be among the first commercial applications for fuel cells in vehicles. This is due to the fact that urban buses are highly visible for the public, they contribute signifi
Popular Abstract in Swedish Alla levande organismer består av celler som tillsammans med molekyler generellt kallade extracellulär matrix bildar en vävnad. Celler innehåller fyra huvudgrupper av byggstenar: socker, fettsyror, aminosyror och nukleotider, vilka i tur och ordning bildar kolhydrater, fetter, proteiner och nukleinsyror. I vävnaderna pågår en ständig omsättning av byggstenarna och molekThis thesis describes structural and functional studies of alpha-1-microglobulin (a1m), a 26 kDa plasma and tissue protein that is evolutionarily well-conserved and belongs to the lipocalin superfamily. The lipocalins are polypeptides of 160-190-amino acids that are folded into an 8-stranded beta-barrel forming a pocket with a hydrophobic interior. a1m carries heterogeneous yellow-brown chromophor
Anion exchange membranes (AEMs) play a vital role in AEM water electrolysis (AEMWE), a promising technology for hydrogen production. However, it remains challenging to develop AEMs that simultaneously achieve high OH− conductivity, robust alkaline stability, and sustained operational performance in AEMWE. In the present study, we report on a class of high-performance, readily synthesized AEMs base
Decoupling key intermediates’ adsorption via asymmetric 3d-5d-orbital hybridization overcomes the intrinsic scaling relation bottleneck, enabling rational design of high-performance, durable multifunctional electrocatalysts for anion exchange membrane water electrolyzers (AEMWEs) and Zn–air batteries (ZABs). Here, we reveal that asymmetric 3d-5d-orbital hybridization, engineered through the synerg
Electrostatic energy plays a pivotal role in the minimization of the free energy of self-assembling oppositely charged ions. This is a fundamental principle that guides the formation of aggregates and the separation of phases characterized by a stoichiometric balance between the opposite charges. However, this study unveils the self-assembly of catanionic nanotubes from a mixture of oppositely cha
Glycerol levels in adipocytes depend on the lipolysis, the hydrolysis of triglycerides into glycerol and free fatty acids, and the efflux of glycerol across the plasma membrane through glycerol channels. The aims of this work were to investigate how glycerol levels are regulated on a molecular level by PLIN1, a major lipid droplet-associated protein and a key regulator of the lipolysis by scaffold
This paper experimentally investigates heat dissipation of a heat pipe with phase change materials (PCMs) cooling in a multiple heat source system. Two heat sources are fixed at one end of the heat pipe. Considering that a heat sink cannot dissipate all the heat generated by two heat sources, various PCMs are used due to a large latent heat. Different materials in a container are wrapped outside o
