Sökning: "space-time clusters"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden space-time clusters.
1. Clusters of urban crime and safety in transport nodes
Sammanfattning : The objective of the thesis is to provide a better understanding of the safety conditions inurban environments, particularly related to those found in transport nodes, in this case,underground stations, and surrounding areas1. First, the study starts with an analysis of theoverall city, identifying concentrations of crime in the urban fabric and then focusing on thecriminogenic conditions at and around underground stations. LÄS MER
2. Prognostic and epidemiological factors in childhood leukemia : studies of p53 and MDM2 expression and of space-time clustering
Sammanfattning : Although cure rates in acute childhood leukaemias have improved it remains a challenge to understand how molecular aberrations influence the prognosis of leukaemia and thus the choice of optimal therapy. Some studies have suggested that dysfunction of the tumour suppressor gene p53 or the oncogene MDM2 could indicate disease progression in children with leukaemia. LÄS MER
3. On the Einstein-Vlasov system: Stationary Solutions and Small Data Solutions with Charged and Massless Particles
Sammanfattning : The Vlasov matter model describes an ensemble of collisionless particles moving through space-time. These particles interact via the gravitational field which they create collectively. In the framework of General Relativity this gravitational field is described by space-time curvature. LÄS MER
4. Epidemiological studies including new methods for cluster analysis of acute childhood leukaemia and brain tumours in Sweden
Sammanfattning : Background: The aetiology in childhood cancer is essentially unknown. Epidemiological investigations as to whether the incidence rates have changed for paediatric cancers or whether clustering of cases occur may give clues to possible causal factors. LÄS MER
5. Necrotizing enterocolitis - growth, bone health and intestinal microbiota during childhood
Sammanfattning : Necrotizing enterocolitis (NEC) is a dreaded gastrointestinal disease primarily affecting infants born preterm. Despite extensive research, NEC is still one of the most devastating diseases in neonatal intensive care. LÄS MER