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Popular Abstract in Swedish Vad är analytisk kemi? Den grundläggande frågeställningen för en analytisk kemist är att finna vad för slags ämnen det finns i ett prov och hur mycket det finns av varje ämne. Detta är inte på långa vägar någon lätt uppgift. Det innebär i många fall att alla ämnen måste separeras från varandra för att sedan kunna identifieras. Som tur är så är de flesta ämnen olika varaThis thesis deals with the combination of electrochromatography and molecular imprinting technology. Electrochromatography is characterised by high separation efficiency, simple instrumentation, and minute consumption of sample. As a novel approach to obtain unique selectivity in capillary electrochromatographic systems molecularly imprinted matrices were used. Molecular imprinting technology repr

The lean stability limit of a prototype syngas burner is investigated. The burner is a three sector system, consisting of a separate igniter, stabilizer and Main burner. The ignition sector, Rich-Pilot-Lean (RPL), can be operated with both rich or lean equivalence values, and serves to ignite the Pilot sector which stabilizes the Main combustion sector. The RPL and Main sectors are fully premixed,

We examined correlates of antinuclear antibody (ANA) positivity (ANA+) in individuals with chronic hepatitis C virus (HCV) infection and the effect of positivity on clinical outcome of HCV. Pretreatment sera from 645 patients from three centres in Sweden (n = 225), the UK (n = 207) and Italy (n = 213) were evaluated by indirect immunofluorescence on Hep-2 cells for ANA pattern and titre by a singl

Helicobacter pylori infection is a causal factor of gastric cancer (which is associated with low gastric acid secretion) or duodenal ulcer (high acid secretion). Parietal cells and ECL cells in the stomach are controlled by gastrin, which plays a crucial role in the regulation of acid secretion. The present study was undertaken to identify a possible role of gastrin in determining the different re

Nearly all mammalian cells express a set of genes known as clock genes. These regulate the circadian rhythm of cellular processes by means of negative and positive autoregulatory feedback loops of transcription and translation. Recent genomewide association studies have demonstrated an association between a polymorphism near the circadian clock gene CRY2 and elevated fasting glucose. To determine

The aim of this multicenter study was to investigate whether a computer-assisted diagnosis (CAD) system could improve performance and reduce interobserver variation in bone-scan interpretations of the presence or absence of bone metastases. Methods: The whole-body bone scans (anterior and posterior views) of 59 patients with breast or prostate cancer who had undergone scintigraphy for suspected bo

Objective: To determine the interobserver agreement (IOA) of neonatal seizure detection using the gold standard of conventional, multichannel EEG. Methods: A cohort of full-term neonates at risk of acute encephalopathy was included in this prospective study. The EEG recordings of these neonates were independently reviewed for seizures by three international experts. The IOA was estimated using sta

Thesis purpose: to develop theory that can explain the contradictions that we see in contemporary society in the choice of cooking salt. Salt consumption can cause severe health problems. Consumers in the middle and upper classes are health aware, but seem to have other motivations for their choice in cooking salt. As appears in the hype that we see around cooking salt and the increased specialisa

Popular science summary: Transcriptional regulation of HIF-2α in neuroblastoma Neuroblastoma is the most common solid tumor in childhood. The presence of hypoxia -regions of low levels of oxygen- causes a more immature tumor phenotype that is related to a more aggressive form of this cancer. Hypoxia is mainly directed by Hypoxia Inducible Factors (HIF)-1α and HIF-2α. High levels of HIF-2α expre

Background: Bile leakage is a severe complication after cholecystectomy and is associated with an increased risk of morbidity and mortality. The aim of this study was to evaluate the incidence of bile leakage post-cholecystectomy and to identify potential risk factors and their association with changes in the incidence of bile leakage over time. Methods: Demographic and perioperative data of all p

Studying the full universe of nearly 390,000 French patents filed between 1791 and 1900, I show that the nineteenth-century gender patenting gap arose less at the patent office than through unequal access to practical knowledge, collaborators, and time across the life course. I identify 4,165 women inventors using gender-specific honorifics, classify patents with machine learning, reconstruct the

Background: Guidelines recommend systemic thrombolysis (ST) as first-line reperfusion therapy for highrisk pulmonary embolism (PE), however, clinical concerns regarding bleeding risk frequently limit its use in clinical practice. Catheter-directed therapy (CDT) should be considered when ST is contraindicated or has failed but is increasingly used outside these recommendations despite limited guide

BackgroundSymptom severity cutoffs for body dysmorphic disorder (BDD) are lacking, hindering communication between professionals and with the patient community.MethodWe pooled data from 11 clinical trials or high-quality cohort studies from specialist clinics, totaling 804 individuals with BDD (80 % girls/women, 67 % adults). All participants had baseline scores on the adult or adolescent versions

Modern society depends on dams for renewable hydropower, water supply, and flood control. As climate change increases the frequency of extreme rainfall and flood events, and as the demand for renewable energy sources continues to grow, ensuring the safety of these critical structures becomes more urgent than ever. One of the most serious hidden threats in embankment dams is internal erosion – a sl

Objective: The aim of this study is to describe how the use of diagnostic imagingfor prostate cancer (PCa) has evolved over time and to determine whether thereare any differences in access to diagnostic imaging, type of cancers detected, andmortality based on the education level of patients.Methods: 11,063 men were recruited between 1991 and 1996 and thenprospectively followed until 2020. All new

Prostate cancer (PCa) incidence has steadily increased in Sweden, more steeply in the mid-1990s caused by increased opportunistic prostate-specific antigen (PSA) testing. Tallness, normal weight, and non-smoking are associated with more PSA testing, which increases detection of low-risk and localised PCa. We investigated time trends of height, body mass index (BMI), and smoking with PCa risk in 17

BACKGROUND: GP recruitment and retention difficulties challenge the traditional general practice model. Task-shifting and relieving GPs from financial risk have been suggested to make primary care more attractive. In Sweden's multiprofessional team-based primary care system, GPs usually work as salaried employees and there is extensive task-shifting. Salaried employment facilitates mobility, poten

Purpose: We aimed to investigate the incidence and clinical features of Streptococcus dysgalactiae peripartum infections (SDPI), and to investigate the distribution of emm-types in relation to disease severity and the genetic relatedness of isolates from hospital clusters. Materials and methods: Patients with growth of S. dysgalactiae in a genital or wound culture, collected between January 2014 a

BACKGROUND AND AIM: Hepatorenal syndrome (HRS) occurs in about 20 % of patients with liver cirrhosis and ascites and is characterized by intensive renal vasoconstriction, low glomerular filtration rate but preserved tubular function and normal renal histology. The potential of terlipressin and albumin to reverse HRS after a time period of 14 days has already been shown. However, intravenous albumi

Studies on mantle cell lymphoma (MCL) emphasize that patients with progression of disease (POD) ≤24 months have inferior prognosis compared to patients with later POD. This population-based study assessed the impact of POD on overall survival (OS) by timing of progression and first-line treatment. A total of 1186 MCL patients diagnosed 2006–2018 were identified in the Swedish lymphoma register. PO