Wolff-Parkinson-White Syndrome (WPW) is a term referring to Louis Wolff who published an article in 1930 that describes 11 patients suffering from episodes of tachycardia with characteristic ECG findings (ECG pattern shows bundle branch block and shortened P-R interval). In 1943, anatomical accessory pathway of conducting tissue has been described that bypasses the atrioventricular (AV) conduct...

The Wolff single-cluster algorithm is the most efficient method known for Monte Carlo simulation of many spin models. Due to the irregular size, shape and position of the Wolff clusters, this method does not easily lend itself to efficient parallel implementation, so that simulations using this method have thus far been confined to workstations and vector machines. Here we present two parallel ...

A case of recent myocardial infarction in a 24-year-old man with no known history of Wolff—Parkinson— White syndrome is reported. The patient developed during sport training an exercise tachycardia associated with palpitation and syncope. The electrocardiogram, performed by rescue team, was suggestive of Wolff-Parkinson-White syndrome. He was admitted to Cardiovascular Diseases Institute for th...

T HE Wolff-Parkinson-White syndrome consists of an abnormally short P-R interval, usually prolonged duration of QRS complexes, and history of repeated episodes of paroxysmal tachycardia.' Variations of QRS complex have been observed during tachycardia, following exercise or atropine sulfate,1 or even while patients were at rest.2 The paroxysmal tachyeardias have been generally supraventricular,...

Let ∆n be the unit polydisc in Cn and let f be a holomorphic self map of ∆n. When n = 1, it is well known, by Schwarz’s lemma, that f has at most one fixed point in the unit disc. If no such point exists then f has a unique boundary point, call it x ∈ ∂∆, such that every horocycle E(x, R) of center x and radius R > 0 is sent into itself by f . This boundary point is called the Wolff point of f....

The attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) was employed to acquire the infrared spectra of Radix Bupleuri and its unofficial varieties: the root of Bupleurum smithii Wolff and the root of Bupleurum bicaule Helm. The infrared spectra and spectra of Fourier self-deconvolution (FSD), discrete wavelet transform (DWT), and probability neural network (PNN) of t...

in the present study, modelling and vibration analysis of carbon nanotubes/ fiber/ polymer composite microplates are investigated. the governing equations of the carbon nanotubes/ fiber/ polymer composite microplates are derived based on first order shear deformation plate theory, rather than other plate theories, due to accuracy and simplicity of polynomial functions. the modified couple stres...

We study the universality between a discrete spin model with icosahedral symmetry and the O(3) model in two dimensions. For this purpose we study numerically the renormalized two-point functions of the spin field and the four point coupling constant. We find that those quantities seem to have the same continuum limits in the two models. This has far reaching consequences, because the icosahedro...

Most spiders are content to sit and wait for unsuspecting victims to blunder into their silken traps, but webs are only ever as good as the structures that secure them to the surfaces that support them. ‘This [attachment] is done with a special type of silk, called piriform’, says Jonas Wolff, from Macquarie University, Australia, adding that most spiders only produce this silk when they need t...

Stein C, Damato AN: Catheter technique for recording His bundle activity in man. Circulation 39: 13, 1969 6. Denes P, Wyndham C, Amat-y-Leon F, Wu D, Dhingra R, Miller R, Rosen KM: Atrial pacing at multiple sites in WolffParkinson-White syndrome. Br Heart J 39: 506, 1977 7. Svenson RH, Gallagher JJ, Sealy WC, Wallace AG: An electrophysiological approach to the surgical treatment of the Wolff-Pa...