Eating habits of urban bantu, with special reference to the school-going child

Click on the link to view

The vascular nature of COVID-19

A potential link between mortality, D-dimer values and a prothrombotic syndrome has been reported in COVID-19 patients. The National Institute for Public Health of the Netherlands published a report for guidance on diagnosis, prevention and treatment of thromboembolic complications in COVID-19 with a new vascular disease concept. The analysis of all available current medical, laboratory and imaging data on COVID-19 confirms that symptoms and diagnostic tests can not be explained by impaired pulmonary ventilation. Further imaging and pathological investigations confirm that the COVID-19 syndrome is explained by perfusion disturbances first in the lung, but consecutively in all organs of the body. Damage of the microvasculature by SARS 1 and SARS 2 (COVID-19) viruses causes microthrombotic changes in the pulmonary capillaries and organs leading to macrothrombosis and emboli. Therefore anticoagulant profylaxis, close lab and CT imaging monitoring and early anticoagulant therapy are indicated

The parabolic implosion for f0(z) = z + z v+1 + φ(2v=Z)

In this thesis we examine the bifurcation in behaviour (for the dynamics) which occurs when we perturb the holomorphic germ fo(z) =z+ zv+1 + O(zv+2) defined in a neigh- bourhood of 0, so that the multiple fixed point at 0 splits into v+1 fixed points (counted with multiplicity). The phenomenon observed is called the parabolic implosion, since the perturbation will typically cause the filled Julia set (if it is defined) to "implode. " The main tool used for studying this bifurcation is the Fatou coordinates and the associated Ecalle cylinders. We show the existence of these for a family of well behaved f's close to fo, and that these depend continuously upon f. Each well behaved f will have a gate structure which gives a qualitative description of the "egg-beater dynamic" for f. Each gate between the fixed points of f will have an associated complex number called the lifted phase. (Minus the real part of the lifted phase is a rough measure of how many iterations it takes for an orbit to pass through the gate. ) The existence of maps with any desired gate structure and any (sensible) lifted phases is shown. This leads to a simple parameterisation of the well behaved maps. We are particularly interested in sequences fk → fo where all the lifted phases of the fk converge to some limits, modulo Z. We show that there is a non-trivial Lavaurs reap g associated with these limits, which commutes with fo. The dynamics of fk are shown to (in some sense) converge to the dynamics of the system (fo, g). We also prove that for any Lavaurs map g there is a sequence fk → fo so that fk k → g as k → +oo, uniformly on compact sets

Innovations in cardiology:Towards patient centered care

The thesis consists of three parts: In Part 1, the effect of telemonitoring on patients with congenital heart defects or genetic cardiomyopathy was investigated. Telemonitoring does not lead to a reduction in the number of unplanned hospital visits. Part 2 researched the effect of patient education through virtual reality. Particularly, patients with no prior experience in the operating room or the hospital benefit from this comprehensive education. In patients with experience, we did not observe a decreased anxiety about the procedure (even if it was a new procedure to them). In part 3, it was explored whether artificial intelligence can contribute to precise data point localization of the R-wave on the electrocardiogram. Our technique was data-point precise and outperformed current techniques. Expanding this technique in the future could assist cardiologists in automatically detecting heart conditions