Bestemmelse af trængsel for busser på baggrund af GPS data

Dette paper er baseret på afgangsprojektet: ”Trængselsopgørelse for busser – samt vurdering af fremkommeligheds forbedrende tiltag”, der er udarbejdet i foråret 2008 som en del af civilingeniøruddannelsen indenfor Vej- og Trafikteknik på Aalborg Universitet. Som en del af projektet indgår en bestemmelse af trængsel for busser på baggrund af GPS data automatisk logget fra de største busruter i Aalborg. I dette paper vil der være fokus på metoden til bestemmelse og illustrering af trængslen samt anvendelsesmuligheder af dette

The influence of exercise on clinical pain and pain mechanisms in patients with subacromial pain syndrome

BACKGROUND: Few studies have investigated the underlying mechanisms for unilateral subacromial pain syndrome (SAPS). Therefore, this study examined (1) if 8‐weeks of exercise could modulate clinical pain or temporal summation of pain (TSP), conditioned pain modulation (CPM), and exercise‐induced hypoalgesia (EIH) and (2) if any of these parameters could predict the effect of 8‐weeks of exercise in patients with unilateral SAPS. METHODS: Thirty‐seven patients completed a progressive abduction exercise program every other day for 8‐weeks. Worst shoulder pain in full abduction was rated on a numeric rating scale (NRS). Pain pressure thresholds (PPTs), TSP, CPM, EIH, Shoulder Pain and Disability Index (SPADI), Pain Catastrophizing Scale (PCS), PainDETECT questionnaire (PD‐Q), Pain Self‐Efficacy Questionnaire (PSE‐Q) and Pittsburgh Sleep Quality Index (PSQI) were assessed before and after intervention. RESULTS: The intervention improved worst pain intensity (p  0.05). In a linear regression, the combination of all baseline parameters predicted 23.2% variance in absolute change in pain after 8 weeks. Applying backwards elimination to the linear regression yielded that baseline pain intensity combined with TSP predicted 33.8% variance. CONCLUSION: This explorative study suggested reduction in pain, improved sleep quality and increased CPM after 8‐weeks of exercise. Furthermore, the results suggests that low pain intensity and high TSP scores (indicative for pain sensitisation) may predict a lack of pain improvement after exercise

Renal haemodynamics are not related to genotypes in offspring of parents with essential hypertension.

Introduction. The pathogenesis of essential hypertension (EH) has a major genetic component and is associated with renal abnormalities. Normotensive offspring of hypertensive parents are likely to develop EH and are a suitable population for identifying possible relations between genetic and renal abnormalities.Methods. We investigated if renin-angiotensin-aldosterone system associated genotypes (angiotensinogen [M235T] and ACE [I/D]) are related to blood pressure (BP), renal haemodynamics and sodium excretion in sex and age-matched (18—35 years) healthy Caucasian offspring of either two parents with EH (n=101, EH-offspring) or two normotensive parents (n=50, controls). The alpha-adducin polymorphism (G460W) was also investigated.Results. Compared to controls, BP, heart rate, renal vascular resistance (RVR) and urinary sodium excretion were, respectively, 5%, 7%, 15% and 20% higher in EH-offspring. In controls, the TT-genotype of the M235T angiotensinogen polymorphism was associated with higher BP and higher plasma angiotensinogen. By contrast, in EHoffspring the TT-genotype was associated with lower BP and unchanged plasma angiotensinogen. Plasma angiotensinogen correlated positively with BP in EH-offspring, with a similar tendency (p=0.08) in controls. The distributions of the three candidate polymorphisms were similar in EH-offspring and controls. There were no associations between any of the polymorphisms and any of the renal parameters measured.Conclusion. The markedly greater RVR, proportionally larger than the greater BP, supports a role for RVR in the pathogenesis of EH. The lack of association between the candidate polymorphisms and the investigated parameters, even in this homogenous and for hypertension strongly predisposed group, suggests that the polymorphisms investigated do not play important roles in the pathogenesis of hypertension

Redskaber til monitorering af trafikken (REMOTE)

GPS data fra kørende biler vil sandsynligvis i fremtiden erstatte traditionelle spoler i vejene som grundlaget for realtidstrafikinformation. I denne artikel beskrives et projekt under EU’s VIKING program, hvor der er udviklet udstyr til indsamling og behandling af GPS data fra kørende biler med henblik på realtidstrafikinformation. Endvidere beskrives et feltforsøg med 10 taxier

Redskaber til monitorering af trafikken [REMOTE]

GPS data fra kørende biler vil sandsynligvis i fremtiden erstatte traditionelle spoler i vejene som grundlaget for realtidstrafikinformation. I denne artikel beskrives et projekt under EU’s VIKING program, hvor der er udviklet udstyr til indsamling og behandling af GPS data fra kørende biler med henblik på realtidstrafikinformation. Endvidere beskrives et feltforsøg med 10 taxier