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Using the Fourier Transform Spectrometer at Lund Observatory, intensity calibrated spectra of singly ionized zirconium have been recorded and analyzed. Oscillator strengths for 263 Zr II spectral lines in the region 2500-5400 angstrom have been derived by combining new experimental branching fractions with previously measured radiative lifetimes. The transitions combine 34 odd parity levels with 2
For learning to take place in digital learning environments, learners need to use educational software – more or less – as intended. However, previous studies show that some school children, instead of trying to learn and master a skill, choose to systematically exploit or outsmart the system to gain progress. But what about preschoolers? The present study explores the presence of this kind of beh
Constructing in rock will always involve unforeseen rock conditions. This involves a large risk to a project and can in the end entail delays and extra costs. To minimize the risks, an optimized pre-investigation program has to be conducted where essential information is gathered in order to make the best decisions throughout the construction project. In this work the main focus has been on the ap
Med hjälp av ett automatiserat mätsystem för partikelhalter i vatten har vattenkvaliteten vid Borensbergs vattenverk i Motala kommun undersökts under ett års tid med avseende på mikroskopiska partiklar i dricksvatten och råvatten. Antalet mikroskopiska partiklar registrerades som absoluta värden i realtid. I denna artikel diskuteras hur larmgränser skall definieras i praktiken för partikelhalter oDuring a one year long research project at Borensberg Waterworks, Motala, Sweden, water quality with respect to microscopic particle counts both in raw water and drinking water have been monitored by an online water quality monitoring system. Microscopic particle counts were documented with absolute values in real-time. In this paper, a discussion is introduced on how to analyze large data sets fr
The Gaia-ESO Survey (GES) observed many open clusters as part of its programme to spectroscopically characterize the various Milky Way populations. GES spectroscopy and Gaia astrometry from its second data release are used here to assign membership probabilities to targets towards 32 open clusters with ages from 1 to 3800 Myr, based on maximum likelihood modelling of the 3D kinematics of the clust
As no one symptom can predict disease severity or the need for dedicated medical support in coronavirus disease 2019 (COVID-19), we asked whether documenting symptom time series over the first few days informs outcome. Unsupervised time series clustering over symptom presentation was performed on data collected from a training dataset of completed cases enlisted early from the COVID Symptom Study
Statistics for teachers and researchers | Saco-S Lund University Hoppa till huvudinnehåll About us Members of the Saco-S Council Board of the Saco-S Council Saco-S Council's Nomination Committee News at LU This year's salary review at Lund University – how it works Salary debt negotiations end in disagreement Managers dissatisfied with salary-setting appraisals at Lund University Saco-S launches a
We analyzed the influence of donor killer-cell immunoglobulin-like receptor (KIR) gene haplotypes on the risk of relapse and probability of event-free survival (EFS) in children with acute lymphoblastic leukemia (ALL) who received HLA-haploidentical transplantation of ex vivo T-cell depleted peripheral blood stem cells. The KIR gene haplotype was evaluated in 85 donors and the KIR B-content score
Schema för KURSNAMN 10 p (15 ECTS) VT -2 2003 Schedule for GEOM07, 15 hp (15 credits) Autumn-2 2016 Sedimentary Geology and Basin Analysis Course leader: Prof. Mikael Calner Teachers: Updated November 15, 2016 AA = Anders Ahlberg MC = Mikael Calner ME = Mikael Erlström AL = Anders Lindskog NH = Nikolas Höglund E-mail to teachers: name.surname@geol.lu.se * = Excursion/fieldwork Day Date Hours Topic
https://www.geologi.lu.se/sites/geologi.lu.se/files/schema_geom07_2016_14_november.pdf - 2026-06-27
The electrochemical behavior and the electrocatalytic activity for the NADH oxidation at glassy carbon paste electrodes (GCPEs) modified with Meldola Blue (MB) adsorbed onto acidic cc-zirconium phosphate (ZP*) have been investigated. Cyclic voltammetry and rotating disc electrode measurements, performed in Tris buffer solution (pH 7) in absence and in presence of different NADH concentrations, sho
We show conditional lower bounds for well-studied #P-hard problems: -The number of satisfying assignments of a 2-CNF formula with n variables cannot be computed in time exp(o(n)), and the same is true for computing the number of all independent sets in an n-vertex graph. -The permanent of an n x n matrix with entries 0 and 1 cannot be computed in time exp(o(n)). -The Tutte polynomial of an n-verte
There exists compelling experimental evidence in numerous systems for logarithmically slow time evolution, yet its full theoretical understanding remains elusive. We here introduce and study a generic transition process in complex systems, based on nonrenewal, aging waiting times. Each state n of the system follows a local clock initiated at t = 0. The random time tau between clock ticks follows t
Motivation and identity have been vastly investigated within second language acquisition (SLA). These issues are restrained by their complex and dynamic natures, which indicate that they are far from easy to research. The purpose of this essay was to continue traditional areas of research in order to add to empirical knowledge. The attempt was to show that systematic research is necessary in order
In this work two versions of Oauth have been analyzed, the protocol OAuth 1.0a and the newer framework OAuth 2.0. A higher version number is often considered a good thing, but OAuth 2.0 has encountered much criticism. It has been criticised of not being safe enough while OAuth 1.0a was criticised of being very complicated protocol to implement, which has stopped it from growing as expected. The fo
Growing concern about airborne particles in indoor environments requires fast source identification in order to apply remedial actions. A methodology for identifying sources emitting particles larger than 0.5 mu m was designed and applied. It includes: (1) visual inspection of interior surfaces in order to identify deposited particles and inspection of potential sources (equipment, materials. acti
CFE WP nr 18 1José Ortega y Gasset José Ortega y Gasset The Spanish philosopher who saw life as an intellectual adventure Inger Enkvist inger.enkvist@rom.lu.se 2 CFE Working paper series no. 18 CENTRE FOR EUROPEAN STUDIES AT LUND UNIVERSITY: Box 52 Phone: +46 (0)46-222 88 99 SE-221 00 LUND Fax: +46 (0)46-222 40 06 Sweden Email: cfe@cfe.lu.se CFE Working paper series is published by Centre for Euro
https://www.cfe.lu.se/en/sites/cfe.lu.se.en/files/2020-12/cfewp18.pdf - 2026-06-27
