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Publicatii proprii

Andrica-Iwata’s Inequality in hyperbolic triangle

In this paper we proof the Andrica-Iwata's inequality for a hyperbolic triangle

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Some hyperbolic concurrency results in the Poincare disc

In this paper, we present a proof of some hyperbolic theorems in the Poincar´e Model of Hyperbolic Geometry.

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A Geometric Proof of Blundon’s Inequalities

A geometric approach of Blundon's inequality is presented. Theorem 2.1 gives the formula for cosION in terms of the symmetric invariants s , R, r of a triangle, implying Blundon's inequality (Theorem 2.2). A dual formula for cosIaONa is given in Theorem 3.1 and this implies the dual Blundon's inequality (Theorem 3.2). As applications, some inequalities involving the exradii of the triangle are presented in the last section.

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Misoprostol induces gallbladder contraction during fasting, but does not influence postprandial emptying: an ultrasound study in healthy subjects.

Objective : The aim of this study was to evaluate the effect of the PGE1 analogue, Misoprostol, on gallbladder fasting volume and meal-stimulated emptying. Prostaglandins' effects on the gallbladder were studied principally regarding mucus production during lithogenesis. In the few in vitro and in vivo studies, contradictory results concerning their influence upon gallbladder motility were obtained. Subjects : 13 healthy subjects, 8 females, 5 males,

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Analysis of the dynamic behaviour of malignant tumours using mathematical models and ultrasound parameters – a survey.

A miscellany of new strategies, experimental techniques and theoretical approaches are emerging in the ongoing battle against cancer. The recent explosion in the understanding of the multiple scale processes that drive the advancement of cancer is allowing useful mathematical models of the tumorigenesis to be developed. Such models have the potential to facilitate a deeper understanding of the mechanisms associated with tumor initiation and progression

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Using the cooperative robots concept in emergency and catastrophes medicine

Abstract: The goal of this paper consists in a presentation of a telemedicine system architecture applicable in emergency and disaster medicine achieved through a benchmarking between cooperative robotics technique and the mobile intervention units reaction in case of human emergency or disaster appearance. The paper presents an innovative method of assistance, gridiron and guiding patients to the most adequate medical unit for high performance treatment

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Investigation of postmenopausal alteration of trabecular structure on calcaneus radiographs using various fractal analysis methods

Four different methods of fractal analysis able to analyze grayscale images were applied to trabecular structure of the calcaneus, as it appears on the plain lateral radiograph. Their capacity to recognize a radiograph as belonging to a pre-or postmenopausal group was investigated. The study used 3 different regions of interest (ROI), after digital processing. Two-tailed p-value was calculated to compare the results. K-means clustering, nearest neighbor

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Role of Imaging and Modelling in Hepatocellular Carcinoma Angiogenesis. Non Invasive Assessment.
Texture-Based Methods and Data Mining in Ultrasound Images for Diffuse Liver Diseases Severity Characterization
Role of Imaging and Modelling in Tumoral Liver Blood Flow Assessment.

Improved therapeutic options for hepatocellular carcinoma and metastatic disease place greater demands on diagnostic and surveillance tests for liver disease. Existing diagnostic imaging techniques provide limited evaluation of tissue characteristics beyond morphology; perfusion imaging of the liver has potential to improve this shortcoming. The ability to resolve hepatic arterial and portal venous components of blood flow on a global and regional

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