Long-range potentials and (n−1)d+ns(n-1)d+ns molecular resonances in an ultracold rydberg gas

We have calculated long-range molecular potentials of the $0_g^{+}$, $0_u^{-}$ and $1_u$ symmetries between highly-excited rubidium atoms. Strong $np+np$ potentials characterized by these symmetries are important in describing interaction-induced phenomena in the excitation spectra of high $np$ Rydberg states. Long-range molecular resonances are such phenomena and they were first reported in S.M. Farooqi {\it et al.}, Phys. Rev. Lett. {\bf 91} 183002. One class of these resonances occurs at energies corresponding to excited atom pairs $(n-1)d+ns$. Such resonances are attributed to $\ell$-mixing due to Rydberg-Rydberg interactions so that otherwise forbidden molecular transitions become allowed. We calculate molecular potentials in Hund's case (c), use them to find the resonance lineshape and compare to experimental results.Comment: 11 pages, 7 figure

Consumer market for goods and services as a mirror of social and economic transformation: From a centralized economy to the accession of Russia the world trade organization

After having eliminated the disadvantages of centrally planned economy, the reforms being held in Russia have generated negative phenomena and factors that led to the backlog of Russia's economy from its pre-reform counterpart in several ways: by source and economic growth, labor productivity, wage levels, purchasing power and income differentiation, efficiency and quality of public administration, scope of criminalization and corruption in the economy. The relevance of these issues is enhanced due to Russia's WTO accession

Management of competitiveness in automotive industry

© Medwell Journals, 2016.Kamaz group and other automotive industries constantly have to solve the problem of the competitiveness assessment, both of the vehicles and the companies involved in their production and sales. Nowadays, this research is difficult and time consuming as it includes finding an analog for comparison, the use of a complex calculation algorithm and determining the ranking research objects. In our opinion, one can improve and simplify the task by using a technique based on the priorities setting. With this method, it is possible to solve the tasks with the following statement the researched objects are ranked in ascending or descending order by the degree of one or more parameters. The procedure for obtaining primary data is based on the method of expert evaluations

State of the market production standards "halal"in russia and tatarstan: Hands-on review

Production of goods and services by the standards of Halal is the world trend. In recent years, the global food market, the share of halal products, accounting for almost17%.If the current pace of development of this market will continue, then by 2018it amounted to1.6 trillion dollars. High dynamics of development of this market is maintained by the Middle East and North Africa, East and South Asia. The leaders in this market, Indonesia (197 billion Dollars) and Turkey (100 billion Dollars). Formation of the Halal market in Russia and in the Republic of Tatarstan took place gradually, increasing the number of participants and activities expand its range of products and sales geography. Along with the see merging issues that are typical for the global Halal industry, and for the domestic market. First of all, the problems associated with observance of production technology, its certification, authentication, quality and safety, as well as interstate recognition of national standards. The study is devoted to analysis of the market of Halal products in Russia and in the Republic of Tatarstan andthe definition of the main perspectives of its development in the context of globalization of trade

Evaluation level of competition in the market for internet trading

© Medwell Journals, 2016.The main competitive advantage of online stores as well as traditional retail stores is the number of visitors and their confidence. Unlike traditional forms of trade online competitors are just a click away from each other. Internet shops can be divided into two categories: retail offlay-new business and purely virtual stores. More recently, the majority of off-line sellers are not interested in the benefits of e-Commerce, so, their sales through the Internet have been dwarfed by the actual turnover. Small and medium-sized off-line company started its business in order to SETIS diversify and expand markets. Recently, however, off-line players are actively entering the electronic market and tend to occupy a leading position on it which leads to increased competition in this market

Forecasting sales of leasing companies in the market of cargo vehicles

© Medwell Journals, 2016.Most economic models are multifactorial. Unfortunately, not all factors can be expressed in conventional units. For example, the "amount of advance payment" can be expressed in rubles, "the lease term" in days but in order to quantify the "package of documents" an expert assessment is required. The proposed methodology allows the authors to not only determine the quantitative estimation of factors but also to analyze their impact on the "sales" and then make a prediction of further development of this important economic indicator

The Crustal Rigidity of a Neutron Star, and Implications for PSR 1828-11 and other Precession Candidates

We calculate the crustal rigidity parameter, b, of a neutron star (NS), and show that b is a factor 40 smaller than the standard estimate due to Baym & Pines (1971). For a NS with a relaxed crust, the NS's free-precession frequency is directly proportional to b. We apply our result for b to PSR 1828-11, a 2.5 Hz pulsar that appears to be precessing with period 511 d. Assuming this 511-d period is set by crustal rigidity, we show that this NS's crust is not relaxed, and that its reference spin (roughly, the spin for which the crust is most relaxed) is 40 Hz, and that the average spindown strain in the crust is 5 \times 10^{-5}. We also briefly describe the implications of our b calculation for other well-known precession candidates.Comment: 44 pages, 10 figures, submitted to Ap

Economic-mathematical methods of forming the optimal assortment plan trade enterprises

© 2015, Asian Social Science. All rights reserved. The article provides a critical analysis of the existing economic and mathematical models, summarizes the main deficiencies identified by various researchers and authors themselves, which allowed to recommend greater use of methods of linear programming. In a highly competitive consumer market, and most importantly, in the context of the dynamic expansion and deepening of product range, it is impossible to form the optimal assortment plans, focusing only on maximizing profits, it is also necessary to minimize distribution costs. According to the authors duality theory solves both of these problems. An algorithm for creating the optimal assortment plan commercial enterprise, based on the solution of the primal and dual linear programming problem. Given the economic interpretation of the possible reasons for which the task will not have a solution. Existing computer technologies allow to realize the proposed algorithm and provide a high reliability of the results

Avalanche dynamics of radio pulsar glitches

We test statistically the hypothesis that radio pulsar glitches result from an avalanche process, in which angular momentum is transferred erratically from the flywheel-like superfluid in the star to the slowly decelerating, solid crust via spatially connected chains of local, impulsive, threshold-activated events, so that the system fluctuates around a self-organised critical state. Analysis of the glitch population (currently 285 events from 101 pulsars) demonstrates that the size distribution in individual pulsars is consistent with being scale invariant, as expected for an avalanche process. The waiting-time distribution is consistent with being exponential in seven out of nine pulsars where it can be measured reliably, after adjusting for observational limits on the minimum waiting time, as for a constant-rate Poisson process. PSR J0537$-$6910 and PSR J0835$-$4510 are the exceptions; their waiting-time distributions show evidence of quasiperiodicity. In each object, stationarity requires that the rate $\lambda$ equals $- \epsilon \dot{\nu} /$, where $\dot{\nu}$ is the angular acceleration of the crust, $$ is the mean glitch size, and $\epsilon\dot{\nu}$ is the relative angular acceleration of the crust and superfluid. There is no evidence that $\lambda$ changes monotonically with spin-down age. The rate distribution itself is fitted reasonably well by an exponential for $\lambda \geq 0.25 {\rm yr^{-1}}$. For $\lambda < 0.25 {\rm yr^{-1}}$, its exact form is unknown; the exponential overestimates the number of glitching pulsars observed at low $\lambda$, where the limited total observation time exercises a selection bias.Comment: Accepted for publication in the Astrophysical Journa

ABC - analysis, as an important tool for generating an optimal assortment plan commercial enterprises

© 2015, Mediterranean Center of Social and Educational Research. All rights reserved. High rates of financial and economic state trading enterprise is largely dependent on its assortment policy. It is known that not all commodity groups food supermarket are equally profitable. Since the formation of a range of tactical problems of commercial enterprise, the analysis of its economic efficiency should be evaluated systematically. The most popular method of assessment of such acts ABC - analysis. The purpose of the ABC-analysis in our study - Identification of product groups, with the most high, medium and low share of sales