chil dren is not un com mon, and it ranges in se ver ity from a wor ri some mild ep i sode to an acute panicprovoking in ci dent. Al though the var i ous clin i cal par a digms have not changed, ad vances in en dos copy and ra di ol ogy, as well as new ther a peu tic mo dal i ties, per mit us to pin point the cause of bleed ing more eas ily and to treat it ef fec tively. Be fore en dos copy cam...

In recent years considerable attention has been paid to the numerical solution of stochastic ordinary diierential equations (SODEs), as SODEs are often more appropriate than their deterministic counterparts in many modelling situations. However, unlike the deterministic case numerical methods for SODEs are considerably less sophisticated due to the diiculty in representing the (possibly large n...

Background Previous studies have suggest­ ed that hyperhomocysteinemia may be a risk factor for venous thrombosis. To assess the risk of venous throm­ bosis associated with hyperhomocysteinemia, we stud­ ied plasma homocysteine levels in patients with a first episode of deep-vein thrombosis and in normal control subjects. Methods. We measured plasma homocysteine levels in 269 patients with a fi...

Myocarditis has long been recognized as a complication of rheumatic fever, diphtheria, scarlet fever and whooping cough. It also occurs in association with poliomyelitis and more rarely with other virus infections such as influenza, mumps, psittacosis, infectious mononucleosis, primary atypical pneumonia, varicella, measles, infectious hepatitis and yellow fever (Lyon, 1956; Silber, 1958). Myoc...

Accumulating evidence suggests that some women may be at heightened risk for mood symptoms during periods of intense hormone variations, which represent a challenge to clinicians; the menopause transition (MT) is a par a mount example. The MT is often accompanied by changes in metabolism, sexuality, behaviour and overall health, including greater susceptibility to cardiovascular events, metabol...

An in-situ product crystallization process (ISPC) was developed for a crystalline product formed during bioreduction coupled with biocatalyst cultivation. The model reaction was the asymmetric reduction of 4-oxoisophorone (OIP) by baker’s yeast (Saccharomyces cerevisiae). Yeast cells were cultivated fed-batch in the reactor with an initial cell concentration (CXi) of 1 gdw.L to reach a maximum ...

One of the challenges in process control is prov id ing reliable control of poor ly understood systems. Before such a system can be cont ro l led we must f i rst be able to predict its future behavior-so that we know what control action is necessary. Th is paper presents two approaches to this predict ion task, both using qual i tat ive models augmented by records of histor ical system behavior...

In this letter, we introduce a new generalized linearizing transformation (GLT) for second-order nonlinear ordinary differential equations (SNODEs). The well-known invertible point (IPT) and non-point transformations (NPT) can be derived as sub-cases of the GLT. A wider class of nonlinear ODEs that cannot be linearized through NPT and IPT can be linearized by this GLT. We also illustrate how to...