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Article
Adaptive computation of the Symmetric Nonnegative Matrix Factorization (SymNMF)
Symmetric Nonnegative Matrix Factorization (SymNMF) provides a symmetric nonnegative low rank decomposition of symmetric matrices. It has found application in several domains such as data mining, bioinformatic...
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Chapter
Operative Techniques in Vascular Injuries of Extremities
Arterial trauma of the limbs represents about 0.5% of all civilian trauma. Blunt trauma is the most frequent mechanism in civilian records, although penetrating trauma, especially gunshot wounds, is increasing...
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Chapter
Updates in the Management of Non-traumatic Abdominal Vascular Emergencies (Abdominal Aortoiliac Aneurysms, Intestinal Ischemia, Splanchnic Aneurysms)
Aortoiliac aneurysm, splanchnic aneurysms, and intestinal ischemia are potentially life-threatening conditions. Every year in Europe, 220,000 people received a diagnosis of nominal abdominal aortic aneurysm; s...
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Article
Open AccessHuman responses against HER-2-positive cancer cells in human immune system-engrafted mice
Human immune system (HIS)-engrafted mice are new tools to investigate human immune responses. Here, we used HIS mice to study human immune responses against human HER-2-positive cancer cells and their ability ...
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Article
Separable asymptotic cost of evaluating elementary functions
The computational cost, in the bit model of computation, of the evaluation of a real function \(f(x)\) in a point ...
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Article
An infinite precision bracketing algorithm with guaranteed convergence
The computational cost of a bracketing algorithm in the bit model of computation is analyzed, when working with a finite arithmetic of unbounded accuracy. The complexity measure used here is the number of bit ...
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Article
New symmetric interpolatory quadrature formulas
We introduce two families of symmetric, interpolatory integration formulas on the interval [−1,1]. These formulas, related to the class of recursive monotone stable (RMS) formulas, allow the application of hig...
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Article
Dysarthria and cerebellar ataxia: late occurrence of severe neurotoxicity in a liver transplant recipient
Neurological complications of cyclosporin (CyA) therapy are frequent, usually occurring within the 1st month after transplantation. Though leukoencephalopathy is one of them, it is rarely documented. Here we r...
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Chapter and Conference Paper
Somatomedin C (IGF I) plasma levels after orthotopic liver transplantation (OLT) in end-stage cirrhotic patients
Insulin-like growth factors [IGF I and II or somatomedins (SMS)] are polypeptides chemically and biologically correlated with insulin. The main source of synthetic activity and secretion is the liver, although...
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Chapter and Conference Paper
Liver transplantation for small HCC in cirrhosis
Segmental liver resection is generally considered the treatment of choice for small HCC in cirrhotic livers. Although in selected patients with small encapsulated nodules and low alpha-fetoprotein levels long-...
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Article
Generalized band matrices and their inverses
The idea of defining the generalized band matrices is based on the recognition that several pattern matrices and their inverses have low rank submatrices in certain domains. Theoretical considerations concerni...
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Article
Testing automatic quadrature programs
A new method for testing automatic quadrature programs is introduced. With only one computer run, this method gives complete information on the behaviour of the integration program for a single function and an...
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Article
Relations between condition numbers and the convergence of the Jacobi method for real positive definite matrices
LetA be ann×n real symmetric diagonal dominant matrix with positive diagonal partD, and letS 2=D −1 andH=SAS. The following relation between the condition number κ(H)=‖H −1‖ ‖H‖ and the spectral radiusr of the Ja...
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Article
Preliminary report of a kindred affected from MEN IIa
Preliminary data of a kindred with multiple endocrine neoplasia type Ila (MEN IIa) are presented. The study concerns 20 subjects belonging to 4 generations. The first is a man, previously adrenalectomized for ...
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Article
Computations concerning primes and powers of two
The problem of representing odd integers as the sum of a prime and a power of two is investigated using numerical computations. The density of representable numbers is calculated up to 231 and the results are ext...
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Article
Male infertility in a case of (Y;6) balanced reciprocal translocation. Mitotic and meiotic study
In a 30-year-old azoospermic male, chromosome analysis revealed an apparently balanced Y-autosome reciprocal translocation, t(Y;6)(Yp6p;Yq6q). Testicular biopsy showed an arrest of spermatogenesis at the First...
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Article
Computations concerning Waring's problem for cubes
Waring's problem for cubes is investigated using numerical computations.
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Article
Complexity measures for matrix multiplication algorithms
A new class of algorithms for the computation of bilinear forms has been recently introduced [1, 3]. These algorithms approximate the result with an arbitrarily small error. Such approximate algorithms may hav...
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Article
On hash techniques in a paged environment
The performance of techniques for hash tables management in paged environments is examined. Classical methods as open addressing and chaining are considered as well as some new techniques performed on doubly l...
