introduction: pulmonary embolism is one of the leading causes of mortality in patients.the mortality rate of this disease can be significantly reduced with appropriate treatment. surgical intervention can be highly effective for the treatment of acute massive pulmonary embolism. this article presents a report on the experience of acute pulmonary embolectomy. materials and methods: demographic d...

The establishment of irrevocable democracy, the rule of law, free market economic relations, and the protection of fundamental human rights have not yet assumed key significance in the South Caucasus countries. Consequently, all pressing problems of the region continue to intensify, keeping the region politically and economically unstable. Given contending geopolitical and geoeconomic interests...

Résumé. Très populaire et très efficace pour l’estimation de paramètres d’un modèle de mélange, l’algorithme EM présente l’inconvénient majeur de converger parfois lentement. Son application sur des tableaux de grande taille devient ainsi irréalisable. Afin de remédier à ce problème, plusieurs méthodes ont été proposées. Nous présentons ici le comportement d’une méthode connue, LEM, et d’une va...

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0. Speech and phonology As is well known the physical properties of speech are determined by a large number of factors. They vary depending on the language spoken, on the age, gender and identity of the speaker. They undergo stylistical modifications in innumerable ways owing to the interaction of physiological, cognitive, social and communicative factors. Linguistics deals with this problem by...

Community ecology is in a current state of creative ferment, stimulated by the development of neutral models of community organization. Here, I reflect on recent papers by Scheffer and van Nes, and by Gravel et al., which illuminate how neutrality can emerge from ecological and evolutionary processes, thus suggesting ways to unify neutral and niche perspectives.