Conditions on Iterative Rounding Harmony in Oroqen

In this paper, we re-examine the claim that Baiyinna Oroqen, a language of the Tungusic family with a largely predictable distribution of non-high round vowels, requires a non-iterative type of rounding harmony, by demonstrating instead the need for a clear distinction between stem-internal morpheme structure constraints and suffixal vowel harmony. We also propose to revise what was thought to be a requirement that harmony donors must be anchored in two successive syllables; it is instead a restriction that copying of the harmonic feature must be from the closest non-initial vowel

Structure of Extreme Correlated Equilibria: a Zero-Sum Example and its Implications

We exhibit the rich structure of the set of correlated equilibria by analyzing the simplest of polynomial games: the mixed extension of matching pennies. We show that while the correlated equilibrium set is convex and compact, the structure of its extreme points can be quite complicated. In finite games the ratio of extreme correlated to extreme Nash equilibria can be greater than exponential in the size of the strategy spaces. In polynomial games there can exist extreme correlated equilibria which are not finitely supported; we construct a large family of examples using techniques from ergodic theory. We show that in general the set of correlated equilibrium distributions of a polynomial game cannot be described by conditions on finitely many moments (means, covariances, etc.), in marked contrast to the set of Nash equilibria which is always expressible in terms of finitely many moments

Separable and Low-Rank Continuous Games

In this paper, we study nonzero-sum separable games, which are continuous games whose payoffs take a sum-of-products form. Included in this subclass are all finite games and polynomial games. We investigate the structure of equilibria in separable games. We show that these games admit finitely supported Nash equilibria. Motivated by the bounds on the supports of mixed equilibria in two-player finite games in terms of the ranks of the payoff matrices, we define the notion of the rank of an n-player continuous game and use this to provide bounds on the cardinality of the support of equilibrium strategies. We present a general characterization theorem that states that a continuous game has finite rank if and only if it is separable. Using our rank results, we present an efficient algorithm for computing approximate equilibria of two-player separable games with fixed strategy spaces in time polynomial in the rank of the game

Correlated Equilibria in Continuous Games: Characterization and Computation

We present several new characterizations of correlated equilibria in games with continuous utility functions. These have the advantage of being more computationally and analytically tractable than the standard definition in terms of departure functions. We use these characterizations to construct effective algorithms for approximating a single correlated equilibrium or the entire set of correlated equilibria of a game with polynomial utility functions.Comment: Games and Economic Behavior, In Press, Accepted Manuscript, Available online 16 April 201

Построение модели сбалансированной системы показателей в деятельности библиотек (на примере Республиканского медицинского библиотечно-информационного центра)

Balanced scorecard (BSC) is widely used to achieve strategic objectives, ensure the efficient operation and successful development of enterprises, institutions and organizations. Multiple information sources describe different approaches to BSC design and models created on the basis of these approaches. Introduction and subsequent functioning of the Quality management system in the Republican Medical Library-Information Center (RMLIC) in Kazan (Republic of Tatarstan) has led to the need for such BSC in the institution, which would have ensured the proper quality of its products and services. However, the analysis of publications revealed the absence of the models for bibliographic and information activities suitable for practical use at the moment.It was decided to develop the conceptual model of BSC, basing on the international and own experience and considering specific features of RMLIC area. The article describes the advantages and disadvantages of a number of models and approaches to the construction of BSC, the basic provisions and main principles of designing conceptual model of such system for bibliographic and information activities. The opinion is expressed that synergetic approach allows to create a model, providing fine and well-tuned strategy, formation of key performance indicators that contributes to improve the activities of institution engaged in the provision of library-bibliographic and information services.The author’s conceptual model of the balanced scorecard is presented graphically and described in detail. It meets the needs of RMLIC and logically fits into the control system of the institution operating in the conditions of continuous improvement of the Quality management system.Сбалансированные системы показателей (ССП) широко применяются для достижения стратегических целей, обеспечения эффективной работы и успешного развития предприятий, учреждений и организаций. В многочисленных информационных источниках описаны различные подходы к их проектированию и созданные на базе этих подходов модели. Внедрение и последующее функционирование в Республиканском медицинском библиотечно-информационном центре (РМБИЦ) в Казани (Республика Татарстан) системы менеджмента качества обусловило потребность в такой ССП для учреждения, которая бы обеспечивала надлежащее качество его продукции и услуг. Однако, как показал анализ, проведенный по материалам публикаций, моделей, отражающих специфику библиотечно-библиографической и информационной деятельности и пригодных для практического использования, на данный момент не существует.Была разработана концептуальная модель ССП, опираясь на мировой и собственный опыт и учитывая особенности сферы, в которой работает РМБИЦ. Раскрыты достоинства и недостатки ряда моделей и подходов к построению ССП, изложены основные положения и принципы проектирования концептуальной модели такой системы для библиотечно-библиографической и информационной деятельности. Высказано мнение, что синергетический подход позволяет создать модель, обеспечивающую тонкую и правильную настройку стратегии, формирование ключевых показателей эффективности, что способствует совершенствованию деятельности учреждения, занимающегося предоставлением библиотечно-библиографических и информационных услуг.Представлена в графическом виде и подробно описана авторская концептуальная модель сбалансированной системы показателей, отвечающая потребностям РМБИЦ и логически вписывающаяся в систему управления учреждением, работающим в условиях непрерывно совершенствуемой системы менеджмента качества

Outcome after tantalum rod implantation for treatment of femoral head osteonecrosis: 26 hips followed for an average of 3 years

Background and purpose Tantalum rod implantation has recently been proposed for treatment of early stages of femoral head osteonecrosis. The purpose of our study was to report the early results of its use in pre- and post-collapse stages of the disease