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Pituitary Incidentaloma: to Operate or Not to Operate ?

Acta Chirurgica Belgica, 2012
The wide use of sophisticated imaging techniques has led to the discovery of asymptomatic pituitary lesions, which are called 'incidentalomas'. Their global prevalence averages 10% whereas that of macroadenomas (> 10 mm) is less than 1%. The most frequently encountered lesions are non-functioning adenomas followed by Rathke's cleft cysts. Physiological
J E, Donckier, Th, Gustin
openaire   +2 more sources

Aggregation operators based on indistinguishability operators

International Journal of Intelligent Systems, 2006
This article gives a new approach to aggregating assuming that there is an indistinguishability operator or similarity defined on the universe of discourse. The very simple idea is that when we want to aggregate two values a and b we are looking for a value l that is as similar to a as to b or, in a more logical language, the degrees of equivalence of ...
Jacas Moral, Juan   +1 more
openaire   +3 more sources

Located Operators

MLQ, 2002
Operators from a Hilbert space \(H\) to itself have many applications, ranging from linear integral equations to quantum physics. Many of these applications use known properties of operators such as their spectral decomposition. Because of these applications, it is desirable to analyze when the corresponding mathematical existence theorems can be ...
openaire   +5 more sources

Compelled operations and operations of degreeP

Mathematical Systems Theory, 1979
We definen-ary (n ≥ 1) operations compelled by an operator and operations of degreep, generalizations of Greibach's binary syntactic operations. We show that properties of binary syntactic operators remain right forn-ary operations (n ≥ 1) and further for idempotent operations.
openaire   +2 more sources

The operational calculus of bessel operators

USSR Computational Mathematics and Mathematical Physics, 1963
Ditkin, V. A., Prudnikov, A. P.
openaire   +2 more sources

Operator! Operator!

Amerasia Journal, 1977
openaire   +1 more source

Agricultural Co-Operatives in the Western World: A Bibliometric Analysis

Journal of Cleaner Production, 2020
Jianli Luo, Hao Dong, Fu Jia
exaly  

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