Sökresultat

Filtyp

Din sökning på "*" gav 535049 sökträffar

Dissociation of cyclopropane in double ionization continuum

Dissociative double photoionization of cyclopropane is studied in the inner-valence region using tunable synchrotron radiation. With the aid of ab initio quantum chemical calculations the energies of dication states and their favoured fragmentation pathways are determined. These are compared to the experimental appearance energies of two-body fragmentation processes and to the kinetic energy relea

Artificial spatiotemporal touch inputs reveal complementary decoding in neocortical neurons

Investigations of the mechanisms of touch perception and decoding has been hampered by difficulties in achieving invariant patterns of skin sensor activation. To obtain reproducible spatiotemporal patterns of activation of sensory afferents, we used an artificial fingertip equipped with an array of neuromorphic sensors. The artificial fingertip was used to transduce real-world haptic stimuli into

Efficient Generation of Glucose-Responsive Beta Cells from Isolated GP2+ Human Pancreatic Progenitors

Stem cell-based therapy for type 1 diabetes would benefit from implementation of a cell purification step at the pancreatic endoderm stage. This would increase the safety of the final cell product, allow the establishment of an intermediate-stage stem cell bank, and provide a means for upscaling β cell manufacturing. Comparative gene expression analysis revealed glycoprotein 2 (GP2) as a specific

Use and definitions of perioperative mortality rates in low-income and middle-income countries : a systematic review

BACKGROUND: Aggregate and risk-stratified perioperative mortality rates (POMR) are well-documented in high-income countries where surgical databases are common. In many low-income and middle-income country (LMIC) settings, such data are unavailable, compromising efforts to understand and improve surgical outcomes. We undertook a systematic review to determine how POMR is used and defined in LMICs

Upscaling, Training, Commoning

When on September 15, 2008 the financial conglomerate Lehman Brothers files for bankruptcy – and with that ‘officially’ sparks off the international financial crisis – few would have anticipated the invasive effect this crisis would come to have on the professional and personal lives of many across the world. Today, this implosion remains a mere ‘blip’ in the universe of events that ensued. On clo

Prognostic role of the tumour microenvironment in esophago-gastric, pancreatic and periampullary adenocarcinoma: B cells and beyond

Cancer development depends on cells aquiring a skillset of limitless growth and finally invasive properties to allow for metastasis, as summarised by the six hallmarks of cancer. Recently four more hallmarks have been added: genomic instability, deregulating cellular metabolism, tumour-promoting inflammation and avoiding immune destruction. This thesis focuses on the latter two: immune system and

How conflict affects land use: agricultural activity in areas seized by the Islamic State

Socio-economic shocks, technogenic catastrophes, and armed conflicts often have drastic impacts on local and regional food security through disruption of agricultural production and food trade, reduced investments, and deterioration of land and infrastructure. Recently, more research has focused on the effects of armed conflict on land systems, but still little is known about the processes and outSocio-economic shocks, technogenic catastrophes, and armed conflicts often have drastic impacts on local and regional food security through disruption of agricultural production and food trade, reduced investments, and deterioration of land and infrastructure. Recently, more research has focused on the effects of armed conflict on land systems, but still little is known about the processes and out

Green neighbourhood environments - Implications for health promotion, physical activity and well-being

Befolkningen växer och andelen som vill bo i städer ökar stadigt vilket skaparbehov av ny mark att bygga bostäder på. Tidigare har de flesta städer och orterutvecklats genom att växa utåt, vilket har lett till förlust av naturområden ochjordbruksmark och ökat beroendet av bilar. Att bygga staden inåt istället, så kallad förtätning, är numera en populär strategi för att minska bostadsbristen. I denThe proportion of people living in densely built up areas is gradually increasing,forcing cities to generate new land to build homes upon. In this process there is a risk for an inexplicit decrease of green space. The green features ofneighbourhoods help to create a supportive environment for health and physicalactivity, thus a reduction of greenness may reduce the general well-being in thepopulat

Continuous Intrapartum Maternal and Fetal Temperature Monitoring

The maternal temperature is normally increasing during delivery. Maternal fever in labor is a common problem.Such fever could represent a chorioamnionitis (CAM), leading to an increased risk of neonatal encephalopathy andsubsequent cerebral palsy, as well as other complications. There are also noninfectious reasons for elevatedtemperature during delivery. There is no fetal heart rate that is speci

High-throughput screening of solid-phase extraction materials using mass spectrometry

In biomarker analysis, sample preparation plays a crucial step in order to extract, isolate and concentrate the analytes of interest. Among the various sample preparation techniques, solid phase extraction (SPE) is one of the most common and popular, due to the high enrichment factor, good recovery, low consumption of organic solvents and the possibility to automate (off- or on-line) the whole pro