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If a proper gold standard is not available, then the predictive value of a test cannot be estimated. In this paper the concept of etiologic predictive value (EPV) is introduced. It is a quantity that will yield the predictive value of a test to predict presence of a specified disease in situations for which no proper gold standard is available. This is achieved by using information obtained from a
Popular Abstract in Swedish De personer som ingår i undersökningen har gemensamt att de har erfarenheter av flera års avancerat narkotikamissbruk, varit drogfria i minst två år samt att de idag är socialt integrerade. Det faktum att de lyckats sluta missbruka narkotika och idag lever "vanliga liv" innebär att de tillhör en grupp som hitintills fått mycket liten uppmärksamhet av missbruksforskningeAim of the study, background, theory and method The two aims of this study are to describe and analyse: i) how drug abusers have transformed their lives from the time when they did not use drugs, to becoming drug abusers, and finally leaving drugs behind them; and ii) what it means to be socially integrated with one's experience of having been a drug abuser. The women and men who participated in
In this paper we investigate the structure and motion problem for calibrated one-dimensional projections of a two-dimensional environment. The theory of one-dimensional cameras are useful in several areas, e.g. within robotics, autonomous guided vehicles, projection of lines in ordinary vision and vision of vehicles undergoing so called planar motion. In a previous paper the structure and motion p
A new batch microcalorimetric vessel for the determination of enthalpies of dissolution of small amounts of easily or slightly soluble solids was developed at University of Lund, Sweden and was tested at University of Porto, Portugal. The vessel forms part of a series of twin heat conduction microcalorimeters. In a series of consecutive dissolution steps up to four samples, each 0.1-3 mg, can be i
Background Subjective evaluation of gray-scale and Doppler ultrasound findings (i. e., pattern recognition) by an experienced examiner and preoperative serum levels of CA-125 can both discriminate benign from malignant adnexal ( i. e., ovarian, paraovarian, or tubal) masses. We compared the diagnostic performance of these methods in a large multicenter study. Methods In a prospective multicenter s
We used long-term monitoring data to assess causes behind a recent shift front a clear to a turbid water state in Lake Takern, Sweden. The lake has a previous record of shifts between clear-water and turbid states. but the causes behind these shifts are not well known. During the recent shift, which occurred in 1995-1997, Submerged vegetation Subsequently declined after a 30-year period of clear-w
This study is based on questionnaires, letters, and short biographies written by 92 ordinary Swedish citizens. Most of them had visions of Jesus or of angels and "divine light". The questionnaires focus on changes concerning religious activity, attitude towards the Bible, concept of God and religious orientation. The author has chosen to describe 35 cases in the form of short biographies (4-6 page
Popular Abstract in Swedish Hormonerna vasopressin och oxytocin frisätts från hypofysens baklob. Hypofysen är en körtel, som är belägen på undersidan av hjärnan och utsöndrar en rad olika hormoner vilka i sin tur påverkar och reglerar aktiviteten i en mängd andra organ. Vasopressin medverkar till regleringen av vatten- och saltbalansen i kroppen, men verkar också sammandragande på icke-viljestyrdVasopressin and oxytocin seem to have pivotal roles in the pathophysiology of primary dysmenorrhoea and preterm labour. Prostaglandins are also involved in the regulation of uterine activity with different receptors mediating both stimulation and relaxation. We explored different aspects of synthesis, release and receptor pharmacology of vasopressin and oxytocin. We also tested a vasopressin and o
The availability of three-dimensional structures of proteins has provided enormous insight into the detailed molecular machinery of the living cell. Since the late 1950s and early 1960s, experimental methods for deriving protein structures have contributed more than 30,000 entries to the Protein Data Bank, representing the collected knowledge of protein and other macromolecular structures. However
Long-chain n-6 and n-3 PUFA (LC-PUFA), arachidonic acid (AA) (20:4n-6) and DHA (22:6n-3), are critical for optimal brain development. These fatty acids can be consumed directly from the diet, or synthesized endogenously from precursor PUFA by Δ-5 (encoded by FADS1) and Δ-6 desaturases (encoded by FADS2). The aim of this study was to determine the potential importance of maternal genetic variabilit
This review essay draws on a recently edited handbook by Esin Orucu and David Nelken to reflect on the methodological concerns and challenges of comparative law and socio-legal research. It argues that the contextualisation of laws should be regarded as the indispensable methodological characteristic of all comparative studies of law that aspire to transcend the understanding of law as a body of r
Water-soluble poly(acrylic acid) has been covalently labeled with a fluorescent hydrophobic chromophore, naphthalene (Np), randomly attached onto the polymer backbone with an amount of 3 mol %. The polymer, which is a new type of hydrophobically modified polymer denoted PAAMeNp-34, was investigated using steady-state fluorescence spectroscopy in aqueous solutions of different pH and in methanol. T
Background: Dementia and other psychogeriatric diseases in elderly patients bring an increased risk of death. Better knowledge of prognosis in elderly patients affected by dementia or mental illness should be of great importance in order to improve care plans and assist in medical decisions. Methods: We have investigated the survival time in 2,112 patients with dementia and other forms of psychoge
Energy consumption reduction is today an important design issue for all kinds of digital systems. Offering both flexibility and efficient energy management, variable speed processor architectures are prefered for low energy consumption even in hard real-time systems. For this type of systems, the main approach consists in trading speed for lower energy while meeting all deadlines. For tasks with v
Spectral hole burning and photon echoes are the techniques for frequency-selective optical memories, which have the potential to increase areal data storage density by a factor 10**7. They also have the capability to perform in-memory data processing. In this thesis, several materials and techniques for optical memories in the frequency- and time domain have been investigated. In the frequency do
Aim: To characterize early amplitude-integrated electroencephalogram (aEEG) and single-channel EEG (aEEG/EEG) in very preterm (VPT) infants for prediction of long-term outcome. Patients: Forty-nine infants with median (range) gestational age of 25 (22-30) weeks. Methods: Amplitude-integrated electroencephalogram/EEG recorded during the first 72 h and analysed over 0-12, 12-24, 24-48 and 48-72 h,
Abstract in UndeterminedContextThe key for effective problem prevention is detecting the causes of a problem that has occurred. Root cause analysis (RCA) is a structured investigation of the problem to identify which underlying causes need to be fixed. The RCA method consists of three steps: target problem detection, root cause detection, and corrective action innovation. Its results can help with
VR installations, performances, workshops, lectures Mirabelle Jones is a creative technologist, educator, and researcher based in Copenhagen originally from the San Francisco Bay Area. They currently serve as a Research Assistant in the Human-Centered Computing Section of the Department of Computer Science at the University of Copenhagen and an Artist-in-Residence at Catch Center for Art, Design,
https://www.iac.lu.se/sites/iac.lu.se/files/2024-04/Immersive%20Days_1_Participants_biographies.pdf - 2026-06-22
Artificiell intelligens (AI) har blivit ett kraftfullt verktyg som kan förenkla och förbättra många aspekter av det dagliga arbetet. Här samlar vi information om möjligheterna med AI på jobbet. Lunds universitets arbete med generativ AI syftar till att stärka kvalitet och effektivitet i verksamheten. Arbetet ligger i linje med myndighetsförordningens krav på att statliga myndigheter ska bedriva ve
https://www.medarbetarwebben.lu.se/stod-och-verktyg/it-e-post-post-och-telefoni/ai-vid-lunds-universitet - 2026-06-22
Manager och Civil Servant är en utforskning av aktörers förgivet tagna antaganden vilka styr uppfattningar kring hur offentlig förvaltning ska ske i samtida välfärdsstater. Det hävdas att mer än 30 år av pågående och riktade reformer gentemot den offentliga förvaltningen har orsakat dilemman att uppstå. Dessa dilemman har resulterat i en förskjutning av balansen kring några fundamentala pelare inoManager and Civil Servant is an exploration of actors’ taken-for-granted assumptions that govern perceptions concerning how public administration should be undertaken within contemporary welfare states. It is argued that more than 30 years of continuous reforms directed towards public administration have caused dilemmas to arise. These dilemmas have resulted in a shifting of balances regarding the
