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Dijet events in photon-proton collisions in which there is a large pseudorapidity separation, Deltaeta > 2.5 between the two highest E-T jets are studied with the H1 detector at HERA. The inclusive dijet cross sections are measured as functions of the longitudinal momentum fractions of the proton and photon which participate in the production of the jets, x(p)(jets) and x(gamma)(jets) respectively
Cross sections for the production of two isolated muons up to high di-muon masses are measured in ep collisions at HERA with the H1 detector in a data sample corresponding to an integrated luminosity of 71 pb(-1) at a centre of mass energy of roots = 319 GeV. The results are in good agreement with Standard Model predictions, the dominant process being photon-photon interactions. Additional muons o
The diffractive photoproduction of J/psi mesons is measured with the HI detector at the ep collider HERA using an integrated luminosity of 78 pb(-1). The differential cross section dsigma(gammap --> J/psiY)/dt is studied in the range 2 < < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a function of the photon-proton c
The helicity structure of the diffractive electroproduction of rho mesons, e + p --> e + rho + Y, is studied in a previously unexplored region of large four-momentum transfer squared at the proton vertex, t: 0 < t' < 3 GeV2, where t' = - min. The data used are collected with the HI detector at HERA in the kinematic domain 2.5 < Q(2) < 60 GeV2, 40 < W < 120 GeV No t dependence of the r(00)(04)
Deep-inelastic scattering data in the range 150 < Q(2) < 35000 GeV2 are used to investigate the minimum jet separation necessary to allow accurate description of the rate of dijet production using next-to-leading order perturbative QCD calculations. The required jet separation is found to be small, allowing about 1/3 of DIS data to be classified as dijet, as opposed to approximately 1/10 with more
Dijet cross sections as functions of several jet observables are measured in photoproduction using the HI detector at HERA. The data sample comprises e(+)p data with an integrated luminosity of 319 pb(-1). Jets are selected using the inclusive k(perpendicular to) algorithm with a minimum transverse energy of 25 GeV for the leading jet. The phase space covers longitudinal proton momentum fraction x
Multi-electron production is studied at high electron transverse momentum in positron- and electron-proton collisions using the H1 detector at HERA. The data correspond to an integrated luminosity of 115 pb(-1). Di-electron and tri-electron event yields are measured. Cross sections are derived in a restricted phase space region dominated by photon-photon collisions. In general good agreement is fo
The leading causes of disability and death worldwide, are chronic diseases. They are also the costliest part of healthcare. One way to ease the pressure on healthcare and improve quality of life for patients suffering from chronic diseases, is by digitising healthcare. The Swedish government has set an ambitious goal of Sweden being the world-leading country in e-health by 2025. To contribute to d
Denna studie undersöker hur ett digitalt undervisningsmaterial i skolämnet musik kan fungera för elever som är i behov av extra anpassningar (stödinsatser). Tre metoder har använts för att få en djupare förståelse av elevernas åsikter om det digitala materialet och undervisningsformen. Dessa är frågeformulär/logg, intervjuer och egen dagbok. Frågeställningarna som undersökts är: Hur beskriver infoThis study examines how a digital teaching material in the school subject music can work for students who are in need of additional adjustments (support measures). Three methods have been used to gain a deeper understanding of the student’s opinions about the digital material and teaching methods. Theese are questionnaire/log book, interviews and a diary. The issues examined are: How do the interv
Despite a decade-long research history, there are still ongoing debates on the analysis of Object Shift in Mainland Scandinavian, and all syntactic and information-structural accounts have run into empirical and/or conceptual problems. We argue that this debate can be resolved by recognizing that OS is, in fact, a prosodic phenomenon. Our analysis builds on the observation that varieties with optiDespite a decade-long research history, there are still ongoing debates on the analysis of Object Shift in Mainland Scandinavian, and all syntactic and information-structural accounts have run into empirical and/or conceptual problems. We argue that this debate can be resolved by recognizing that OS is, in fact, a prosodic phenomenon. Our analysis builds on the observatioDespite a decade-long rese
Background Previous population-based studies suggest an increased risk of suicide in Parkinson’s disease (PD), but findings have been inconsistent and often limited by residual confounding. We examined the association between incident PD and suicide-related outcomes using extensive confounding control, including both suicidal attempts and suicide.Methods We conducted a nationwide matched cohort stBackground Previous population-based studies suggest an increased risk of suicide in Parkinson’s disease (PD), but findings have been inconsistent and often limited by residual confounding. We examined the association between incident PD and suicide-related outcomes using extensive confounding control, including both suicidal attempts and suicide.Methods We conducted a nationwide matched cohort st
Fan engagement on social media platforms presents significant challenges for digital preservation due to their dynamic and evolving character, spurred by the platforms’ data-generative and algorithmic features, as well as commercial logic. These characteristics pose problems when capturing information about the context of fan engagement. Context sheds light on the environment, setting or circumstaFan engagement on social media platforms presents significant challenges for digital preservation due to their dynamic and evolving character, spurred by the platforms’ data-generative and algorithmic features, as well as commercial logic. These characteristics pose problems when capturing information about the context of fan engagement. Context sheds light on the environment, setting or circumsta
Introduction/Background: Measurement of umbilical cord blood gasesat birth is the gold standard of capturing the metabolic state of the newborn. Dual sampling of umbilical cord vessels is mandatory, yet the longterm predictive value of venoarterial differences, ΔpH, remain undetermined. Previously, large ΔpH showed a protective effect against adverseneonatal outcomes.Objectives: To investigate the
Ett av mina första uppdrag som nybliven professor i Medicinsk Strålningsfysik vid Lunds Universitet var att i slutet av april 1981 åka till München för att delta i en Europeisk (EU) workshop om möjligheterna att reducera patient bestrålning vid röntgendiagnostik. Av deltagarna från Storbritannien framkom att man på flera håll i Storbritannien utvecklade metoder för medicinsk avbildning utan röntge
IntroductionThis study is part of an international collaboration that investigates teachers’ attitudes and responses to vignettes depicting school bullying situations. As per Bandura's model of reciprocal determination, attitudes and behavior in these situations can be influenced by individual and contextual factors. This study specifically examines several factors related to teachers ‘professio
Sweden has during the past decades experienced increasing challenges in suburban, segregated areas: the inhabitants have different cultural and socio-economic backgrounds but despite that, face similar problems. Many inhabitants lack relevant networks as well as other opportunities to become a part of the society. These inhabitants claim they don´t have the “keys” to understand their society and iSweden has during the past decades experienced increasing challenges in suburban, segregated areas: the inhabitants have different cultural and socio-economic backgrounds but despite that, face similar problems. Many inhabitants lack relevant networks as well as other opportunities to become a part of the society. These inhabitants claim they don´t have the “keys” to understand their society and i
Due to restrictions following the Covid-19 pandemic,major changes regarding teaching have been called for. Sincestudents’ presence in lab classrooms has been very restricted alsophysical labs have had to be transformed into e.g. simulationsperformed at home or via remote connections. After lifting of therestrictions, hybrid learning where both physical and simulatedlab environment are combined hav
Genterapi mot Parkinsons LUM Lunds universitets magasin | Nr 6 | 2009 det globala klassrummet Insektsforskare kämpar för stubbarna 2 LUM nr 6 | 2009 Puss på dig doktorn! LUM nr 6 | 2009 3 Solen svek inte doktorspromotionen i år hel- ler. Den lyste över 233 nya doktorer, 18 he- dersdoktorer och 14 jubeldoktorer. Till dessa kom kransflickor, fanbärare, musiker, an- höriga och intresserade lundabor.
https://www.lu.se/sites/www.lu.se/files/lunds-universitets-magasin-6-2009.pdf - 2026-10-12
Torvmarker, klimat och återvätning – att minska utsläpp och främja koldioxidinlagring ÅSA KASIMIR OCH AMELIE LINDGREN ATT MINSKA UTSLÄPP OCH FRÄMJA KOLDIOXIDINLAGRING TORVMARKER, KLIMAT OCH ÅTERVÄTNING Över myren mörknade kvällens skugga, tyst och töcknigt och tomt var allt. Blygrå molnvarv upphörde ej att dugga silregn, ljudlöst och isigt kallt. Ingen enslig en eller grönklädd tuva, ingen kulle
LUM Lunds universitets magasin | Nr 1 | 2010 Topprekrytering till Humanistlabbet Lundafysiker spårar malaria Gäst från verkligheten 2 LUM nr 1 | 2010 När Bellman blev kult LUM nr 1 | 2010 3 ”Bellman levde på 1800-talet” är titeln på en ny bok av litteratur professorn Johan Stenström. För att förstå hur spännande påståendet är måste man förstås veta att den store skalden dog redan 1795. I den nya b
https://www.lu.se/sites/www.lu.se/files/lunds-universitets-magasin-1-2010.pdf - 2026-10-12
