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Continuous superporous agarose beds constitute a new support material for chromatography, biocatalysis and electrophoresis. The bed consists of a single piece of agarose gel, homogeneously transected by flow-carrying pores, which easily can be varied in the range of 10–100 μm. In this work, large diameter beds (60 mm) were prepared and used in specially designed radial flow columns. The basic chro
Meso-tetrakis (4-bromo-2-thiophene) and (5-bromo-2-thiophene) porphyrins were synthesized in 18% yield from freshly distilled pyrrole and the corresponding aldehydes in refluxing propionic acid. Reaction of both porphyrins with either Zn(OAc)(2)center dot 2H(2)O Or Ag(OAc) afforded the corresponding metal complexes in 20% yield. The free bases and metal complexes were characterized by IR, NMR, EPR
We present and study a minimal structure-based model for the self-assembly of peptides into ordered β-sheet-rich fibrils. The peptides are represented by unit-length sticks on a cubic lattice and interact by hydrogen bonding and hydrophobicity forces. Using Monte Carlo simulations with >10^{5} peptides, we show that fibril formation occurs with sigmoidal kinetics in the model. To determine the mec
The performance of poly(4-methyl-2-pentyne) (PMP)/silica nanocomposites was studied for membranes with a filler content between 10 and 40 wt%. An increase in permeability and a constant vapor selectivity were measured with increasing filler content. The constant selectivity was in contrast to earlier published results for silica filled poly(l-trimethylsilyl-l-propyne) (PTSMP) membranes. Therefore,
One of the fundamental processes in nature is the photoelectric effect in which an electron is ripped away from its atom via the interaction with a photon. This process was long believed to be instantaneous but with the development of attosecond pulses (1 as 10(-18) s) we can finally get an insight into its dynamic. Here we measure a delay in ionization time between two differently bound electrons
Double hydroxides of Ba(II) and Fe(III) were prepared by the co-precipitation method. Co-precipitation was facilitated by applying highly alkaline, carbonate free NaOH solutions with varying base concentrations (2-20 M). The substances, thus obtained, were characterised by thermal methods. XRD spectra of samples treated at various temperatures, Mossbauer and X-ray absorption spectroscopies. It was
InAs has been grown on W-GaAs patterned substrates using metal organic vapor phase epitaxy. It is shown that the W pattern guides the nucleation of the InAs on the GaAs substrate and that the islands formed may be used to embed metal features in a hybrid InAs/GaAs structure. A lower resistance (factor of 2) was measured for the hybrid structures as compared to reference structures. The reduction i
We present a flexible and compact experimental setup that combines an in vacuum liquid jet with an x-ray emission spectrometer to enable static and femtosecond time-resolved resonant inelastic soft x-ray scattering (RIXS) measurements from liquids at free electron laser (FEL) light sources. We demonstrate the feasibility of this type of experiments with the measurements performed at the Linac Cohe
A high survival rate of grafted dopamine neurons is crucial for reversing neurological deficits following brain tissue transplantation in Parkinson's disease. For unknown reasons the survival rate of transplanted dopamine neurons is only around 10% in experimental animals. The hypothesis that oxidative stress causes the loss of transplanted neurons was tested by grafting neurons from transgenic mi
Request PermissionsThis paper analyzes subband beamforming schemes mainly aimed at speech enhancement and acoustic echo suppression applications such as hands-free telephony for both mobile and office environments, Internet telephony and video conferencing. Analytical descriptions of both causal finite-length and noncausal infinite-length subband microphone array structures are given. More specifi
Documentation of your exam exhibition Younjae Lih will document your exhibitions the first Saturday (KHM1) or Sunday (KHM2) after the opening from 10.00, if nothing else is agreed upon. We have agreed upon a new routine concerning the documentations: • Documentation takes place on Saturday or Sunday after opening at 10.00 o´clock if nothing else is agreed upon. • The photographer´s assignment is t
https://www.khm.lu.se/en/sites/khm.lu.se.en/files/documentation_of_your_exm_exhibtion_info.pdf - 2026-05-26
Course analysis GeoN06, autumn 2018 Course leader: Anne Birgitte Nielsen GeoN06 is a master’s level course open to students from geology, archaeology, geography and related subjects. The course is built around a project work running through the course and a series of lectures by different teachers, with different specializations within paleoecology and related methodologies. Fifteen out of the six
https://www.geology.lu.se/sites/geology.lu.se/files/geon06_course_analysis_text_2019_.pdf - 2026-05-26
On Integration of Technology, Media and Mediation Inter Arts Center, Malmö October 11-12, 2023 This seminar discusses methods to integrate sound and image and text. One focus is on what counts as media in this specific practice: the text, music, sound, the live performances of actors’ and musicians’? Or is the art form itself a medium? Another field of interests is how and what is mediated through
21 May ’Perspectives on Credit Society’ End seminar Pufendorf Advenced Study Group ”The Credit Society” conducted by EconSec at the Pufendorf IAS 9.30 REGISTRATION AND COFFEE 10.00 Dr. Stefan Larsson and Dr. Lupita Svensson a) Presentation of literature review ”Överskuldsättning och konsumtionsmönster i det digitala samhället” (Overindebtedness and consumption patterns in the digital society) b) P
https://www.pi.lu.se/sites/pi.lu.se/files/conference_21_22_may_2015_1_0.pdf - 2026-05-26
Instructions for standard agreements: Author – publisher / Licence to publish A licence is an entitlement to exercise a right, in this case a literary work, in certain limited respects. The licence is assigned to those who are to use the work, as opposed to ownership which is transferred. The author retains ownership of the assigned right. The agreement Licence to publish can be used between the a
https://www.staff.lu.se/sites/staff.lu.se/files/anvisningar_till_modellavtal_forfattare_-_forlag_eng.pdf - 2026-05-26
List of scientific papers (peer-reviewed) scrutinized during the preparation of the synthesis Each article is assigned to at least one item in the three categories below. For some types of studies, e.g. reviews, observational or process studies, no item might be assigned in the third category, specifying the type of model applied. Subject of study: Atmospheric composition (ATC) – Bioenergy (BIE) –
https://www.cec.lu.se/sites/cec.lu.se/files/2020-11/e5_cec_synthesis_05.pdf - 2026-05-26
EAC2021_Landscape A sample delivery system for in-light aerosol studies at MAX IV Laboratory C. Preger1,2,3, N. Walsh2 , A. C. Eriksson1,3, A. Kivimäki2,4, M. Patanen4, N. Prisle5, and J. Rissler1,3,6 1Ergonomics and Aerosol Technology, 2MAX IV Laboratory , 3NanoLund - all at Lund University, Lund, SE-22100, Sweden 4Nano and Molecular Systems Research Unit, 5Center for Atmospheric Research - all
https://www.nano.lu.se/sites/nano.lu.se/files/2021-10/Preger_NanoLund2021_Preger.pdf - 2026-05-26
Bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA) is widely used in the management of patients with osteoporosis. Factors, which are specific to machine or to operator, can influence the accuracy and precision of BMD estimations. We studied the effect of leg rotation by 10 degrees either internally or externally from the standard position in a group of 50 women (average
