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Helping students learn uncertainty and significant figures Mätfel i gymnasiefysiken Workshop Elisabeth Nilsson, Lena Claesson & Lukasz Michalak Nationellt resurscentrum för fysik Nationellt Resurscentrum för Fysik, 2025-03-11 www.nrcf.lu.se Stående uppvärmning Bilda par – finn en “främling” Svara, var och en, på 3 frågor (2 min): “Varför har du valt att vara med här?” “Vad förväntar du att lära di

https://www.nrcf.lu.se/sites/nrcf.lu.se/files/2025-03/Workshop%20NRCF%2020250311%20final_0.pptx - 2026-07-11

A measurement of elastic deeply virtual Compton scattering gamma*p --> gamma p using e(+) p and e(-) p collision data recorded with the HI detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 306 pb(-1), almost equally shared between both beam charges. The cross section is measured as a function of the virtuality Q(2) of the exchanged photon and the ce

Direct ozone (O-3) injection is a promising flue-gas treatment technology based on oxidation of NO and Hg into soluble species like NO2, NO3, N2O5, oxidized mercury, etc. These product gases are then effectively removed from the flue gases with the wet flue gas desulfurization system for SO2. The kinetics and mixing behaviors of the oxidation process are important phenomena in development of pract

A semiconductor (InSb) showed transient metal- like heat conduction after excitation of a dense electron- hole plasma via short and intense light pulses. A related ultrafast strain relaxation was detected using picosecond time-resolved x-ray diffraction. The deduced heat conduction was, by a factor of 30, larger than the lattice contribution. The anomalously high heat conduction can be explained o

In this report a generic model for the capture and assessment of end-user requirements and needs, the CREDIT carpenter model, has been developed. The main determinants of the model is the need for the project organisation (including the facilities management organisation) to ensure a thorough understanding of the end-user requirements and needs as well as an assessment through out the project proc

Popular Abstract in Swedish Forskning kring biomarkörer har revolutionerat cancersjukvården. Några av de mest kända exemplen är PSA-testet som kan användas för att identifiera patienter med ökad risk för prostata cancer eller de nya antikroppsbehandlingarna, t.ex mot HER2 (trastuzumab/Hercepin) eller CD20 (rituximab/Rituxan), som gör att man nu ofta kan förlänga eller bota patienter som tidigare hThe goal of biomarker discovery is to identify disease defining molecules, which could be used to improve early detection and/or to predict survival and response to treatment. This thesis is about the transcription factor SOX11, a protein discovered in the context of mantle cell lymphoma in 2008, which shows great potential to be used as a clinical relevant biomarker. The aim of this thesis is to

Fluorescence recovery after photobleaching, FRAP, has been an established technique of quantifying the mobility of molecular species in cells and cell membranes for more than 30 years. However, under non-ideal experimental conditions the current methods of analysis still suffer from occasional problems, for example, when the signal to noise ratio is low, when there are temporal fluctuations in the

The extraction procedure for analysis of the raffinose family oligosaccharides (RFOs) in blanched leguminous vine peas was optimized. For this purpose, 25 pea samples from different cultivars and of different maturity were chosen at random. The effect of blanching was also studied in four cultivars. The yield of oligosaccharides was almost double on average when extracted with 50% ethanol as compa

An organization aiming to survive on a more challenging or changing market has to adapt or fundamentally change the way it is doing business. For the Swedish forest products industry, and more specifically the paper packaging industry, the market challenges range from saturated home markets, competing materials and increasing production costs, to growth of new markets and more powerful actors in t

Popular Abstract in English If you wonder about the journey of goods and services before they reach you and the effects that journey has on the natural environment and the society, this dissertation is for you. In order to deliver goods and services from raw materials to you, the customer/consumer, several organizations and individuals interact with each other. They source the materials, manufactuTo develop sustainable supply chains in a way that their negative environmental and social effects are minimized, shortand long-term targets should be set. The transformation of supply chains towards these targets calls for the development of innovative strategies and the need to continuously identify, classify, and tackle the challenges that can hinder the execution of such strategies. To develop

The purpose of this study is to elucidate affordances and meaning-making processes where students in Compulsory lower secondary education learn to play music together in music class. The data consists of a series of observed music lessons, performances and stimulated recall interviews in two 8th form classes, video recorded in the course of one term. The analysis focuses on students’ and their tea

The main motivation for this thesis, however not the only one, is the search for models for traffic in telecommunication networks. Traffic characterization and modeling are of great importance in the analysis and dimensioning of communication systems. During the last decades we have experienced an explosive growth of our telecommunication networks. New important properties, both on macroscopic and

Elektromagnetiska vågor, även kända som radiovågor, är vågor som sprider sig med låga frekvenser från 3 till 30 kHz. Dessa lågfrekventa vågor används vanligtvis när man önskar kommunicera med ubåtar. De kan emellertid också användas på land för att mäta skillnader i jord– och bergarters elektriska konduktivitet. Denna mätteknik kallas Very-Low-Frequency Electromagnetics (VLF-EM) och har framgångsrElectromagnetic waves, also known as radio waves, which propagate at low frequencies of only 3 kHz to 30 kHz, are usually used for communication with submarines. However, these waves can also be used on land to measure differences in the electrical conductivity of the subsurface. This technique is called Very-Low-Frequency Electromagnetics (VLF-EM) and has been successfully used to gain an insight

Reliable methods for estimating financial return volatility are crucial in many areas of trading and investing. Two such frameworks, the GARCH and SV, have been of particular interest to academics and practitioners alike. The GARCH model describes the variance of the current innovation as a function of the actual sizes of the previous innovations. In contrast, the stochastic volatility model descr

This study analyzes the personal identification process that takes place in the actual meeting of a job coach and a job seeker, with the purpose of making the job seeker employable. The empirical data consists of observations during nine job coach meetings, and interviews with four job coaches. The analysis is based on a social constructionist perspective. The findings point to contradictions in t

This thesis investigates a new type of Phase-Locked Loop (PLL) architecture which combines a phase/frequency detector (PFD) and a digital loop filter. The quantization is done by a time-to-digital converter which continuously shrinks the pulse coming from the PFD and registers how far it propagates. Based on how far into the TDC each pulse propagates, the phase error is determined. The design is f

Behovet av effektiviseringar för lagföringen av personer som har begått brott har länge diskuterats framförallt ur ett effektiviserings perspektiv men även ur ett processekonomiskt perspektiv. Stora och komplicerade mål skapar långa och resurskrävande utredningar som dessutom låter den misstänkte sväva i ovisshet under en lång tid. Ett förslag som har diskuterats men som än så länge avskrivits äThe need to make the process in which persons who have committed crimes are brought to justice has long been discussed from a efficiency perspective but also from a process economical perspective. Large and complicated cases create long and costly investigations and also make the suspects linger in uncertainty for a long time. One alternative that has been discussed but so far discarded is the i

The ongoing Europeanisation is readily identifiable in our day-to-day life. Particularly in the field of law, the elaboration of a uniform and harmonised European private law is promoted and a truly European legal science is forced. Yet, comparative law and unification of law have concentrated on certain areas, which include mainly commercial law and related areas of civil law. The main issue of t

Det upphandlingsrättsliga regelverket inom EU består framförallt av två direktiv, 2004/18/EG och 2004/17/EG. Dessa direktiv är i huvudsak baserade på EG-fördragets (numera EUF-fördraget) bestämmelser om förverkligandet av den gemensamma marknaden och syftar till att säkerställa en sund konkurrens inom hela Europeiska unionen. Direktiven styr i detalj hur en upphandlingsprocess ska genomföras och hThe regulations of public procurement in the European Union (EU) consist primarily of two directives, 2004/18/EG and 2004/17/EG. These directives are principally based on the internal market provisions of the EC Treaty (now the Treaty on the Functioning of the European Union) and are aiming to guarantee competition within the EU. The directives prescribe in detail how a procurement process should