I read with great interest the recent article by DELCROIX et al. [1] on vascular and right ventricular remodelling in chronic thromboembolic pulmonary hypertension (CTEPH). I found it very informative; however, I would like to comment on some of the statements that were made. In relation to pulmonary vascular remodelling, the authors have stated that in spite of there being proportionally more ...

Sampling from a discrete Gaussian distribution is an indispensable part of lattice-based cryptography. Several recent works have shown that the timing leakage from a non-constant-time implementation of the discrete Gaussian sampling algorithm could be exploited to recover the secret. In this paper, we propose a constant-time implementation of the Knuth-Yao random walk algorithm for performing c...

11 (a) (b) (c) (d) (e) (f) Figure 6: Using Gaussian ltering to warp an image: (a) A s a m p l e 256 256 pixel black and white checkerboard image. Each colored square in the image has 8 8 pixels. (b) Point sampled w a r p o f (a) with warp functions x(uu v) = 256u=v, y(uu v) = v. (c) Gaussian kernel shapes required to lter the warp at some texture p ositions. The ellipses are tri-parametric-(aa ...

in this paper, the electrochemical behaviour of passive films formed on aisi 321 stainless steel (aisi 321)immersed in 0.1 m naoh + 0.1 m koh solution was evaluated by different electrochemical techniques. forthis purpose, passive films were formed at open circuit potential for 1 to 12 hours and then electrochemicalmeasurements were done. the polarization curves suggested that aisi 321 showed e...

We present conditions under which graph transformation rules can be applied in time independent of the size of the input graph: graphs must contain a unique root label, nodes in the left-hand sides of rules must be reachable from the root, and nodes must have a bounded outdegree. We establish a constant upper bound for the time needed to construct all graphs resulting from an application of a f...

Laboratory and field experiments have shown that dispersivity is one of the key parameters in contaminant transport in porous media and varies with elapsed time. This time-dependence can be shown using a time-variable dispersivity function. The advantage of this function as opposed to constant dispersivity is that it has at least two coefficients that increase the accuracy of the dispersivity p...