Conformal dimension and random groups

We give a lower and an upper bound for the conformal dimension of the boundaries of certain small cancellation groups. We apply these bounds to the few relator and density models for random groups. This gives generic bounds of the following form, where $l$ is the relator length, going to infinity. (a) 1 + 1/C < \Cdim(\bdry G) < C l / \log(l), for the few relator model, and (b) 1 + l / (C\log(l)) < \Cdim(\bdry G) < C l, for the density model, at densities $d < 1/16$. In particular, for the density model at densities $d < 1/16$, as the relator length $l$ goes to infinity, the random groups will pass through infinitely many different quasi-isometry classes.Comment: 32 pages, 4 figures. v2: Final version. Main result improved to density < 1/16. Many minor improvements. To appear in GAF

Clinical Recommendations for the Diagnosis and Treatment of Chronic Myeloid Leukemia

This article is the 4th edition of the recommendations for the diagnosis and treatment of chronic myeloid leukemia. The group of authors reviewed and discussed relevant new publications, and included the significant remarks and comments of experts. Particular attention was paid to the control of risk factors for the development of arterial vascular events and their prevention, and adverse effects of the long-term therapy with tyrosine kinase inhibitors, which were being increasingly reported in recent years

ОСОБЕННОСТИ КЛАСТЕРА КАК ФОРМЫ ТЕРРИТОРИАЛЬНОЙ ОРГАНИЗАЦИИ ПРОИЗВОДСТВА FEATURES CLUSTER AS A FORM OF TERRITORIAL ORGANIZATION OF PRODUCTION Stryabkova E.A

В настоящее время кластерная политика становится одним из эффективных инструментов повышения конкурентоспособности стран и регионов. Однако существующая методология кластеризации обладает ря-дом ограничений. Так, не в полной мере определены процедуры формирования экономических кластеров по инициативе государства, отсутствует однозначный подход к определению кластеров и их типологизации. Рассмотрены все существующие виды эффектов кластеризации: экстерналии Маршалла, Якобса и Портера. В статье терминологически определен кластер, произведено содержательное и категориальное отделение кластера от смежных понятий и форм территориальной организации производства и осуществлена типоло-гия кластеров на основе выделения кластерных характеристик. Принципиальное значение для обособления кластеров предприятий от других форм объединения хозяйствующих субъектов имеет механизм их возник-новения и эволюции. Автор предлагает новый подход к эволюции развития кластера. Currently, cluster policy is becoming one of the most effective tools for improving competitivenessof countries and regions. However, the existing clustering methodology has several limitations. So, the procedures of formation economic clusters on the initiative the state is not fully defi ned, there is no unique approach to the defi nition of clusters and their typology. Author has examined all existing types of clustering effects: externalities Marshall, Jacobs and Porter. In this paper, the terminology logically defi ned cluster, made meaningful and categorical separation of the cluster of related concepts and forms of territorial organization of production and carried out a typology of clusters on the basis of allocation of cluster characteristics. Fundamental importance for the separation of clusters of fi rms from other forms of association of business entities is the mechanism of their origin and evolution. The author proposes a new approach to the evolution of the cluster

Main Department Store

View within the west arcade, showing mezzanine level and passage to the east arcade; The trapezoidal building features an interesting combination of elements of Russian medieval architecture and a steel framework and glass roof, a similar style to the great Victorian train stations of London. Each arcade is on three levels, linked by walkways of reinforced concrete. Shukhov was the inventor of a new family of doubly-curved structural forms. These forms, based on non-Euclidean hyperbolic geometry, are known today as hyperboloids of revolution. Shukhov developed not only many varieties of light-weight hyperboloid towers and roof systems, but also the mathematics for their analysis. It is still open today, and is a popular tourist destination for those visiting Moscow. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 6/22/2009

Main Department Store

View of the south entry; The trapezoidal building features an interesting combination of elements of Russian medieval architecture and a steel framework and glass roof, a similar style to the great Victorian train stations of London. Each arcade is on three levels, linked by walkways of reinforced concrete. Shukhov was the inventor of a new family of doubly-curved structural forms. These forms, based on non-Euclidean hyperbolic geometry, are known today as hyperboloids of revolution. Shukhov developed not only many varieties of light-weight hyperboloid towers and roof systems, but also the mathematics for their analysis. It is still open today, and is a popular tourist destination for those visiting Moscow. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 6/22/2009

Main Department Store

Context view, showing the west elevation of Red Square; The trapezoidal building features an interesting combination of elements of Russian medieval architecture and a steel framework and glass roof, a similar style to the great Victorian train stations of London. Each arcade is on three levels, linked by walkways of reinforced concrete. Shukhov was the inventor of a new family of doubly-curved structural forms. These forms, based on non-Euclidean hyperbolic geometry, are known today as hyperboloids of revolution. Shukhov developed not only many varieties of light-weight hyperboloid towers and roof systems, but also the mathematics for their analysis. It is still open today, and is a popular tourist destination for those visiting Moscow. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 6/22/2009

Main Department Store

View of the central dome, looking up; The trapezoidal building features an interesting combination of elements of Russian medieval architecture and a steel framework and glass roof, a similar style to the great Victorian train stations of London. Each arcade is on three levels, linked by walkways of reinforced concrete. Shukhov was the inventor of a new family of doubly-curved structural forms. These forms, based on non-Euclidean hyperbolic geometry, are known today as hyperboloids of revolution. Shukhov developed not only many varieties of light-weight hyperboloid towers and roof systems, but also the mathematics for their analysis. It is still open today, and is a popular tourist destination for those visiting Moscow. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 6/22/2009

Main Department Store

Fountain in center of arcade; The trapezoidal building features an interesting combination of elements of Russian medieval architecture and a steel framework and glass roof, a similar style to the great Victorian train stations of London. Each arcade is on three levels, linked by walkways of reinforced concrete. Shukhov was the inventor of a new family of doubly-curved structural forms. These forms, based on non-Euclidean hyperbolic geometry, are known today as hyperboloids of revolution. Shukhov developed not only many varieties of light-weight hyperboloid towers and roof systems, but also the mathematics for their analysis. It is still open today, and is a popular tourist destination for those visiting Moscow. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 6/22/2009