An approach for creating business model for using virtual tools in startup companies

The forms of business organizations follow some steady trends driven by tendencies like the rapid development of IT and the transition of information systems. The application of virtualization and the use of virtual tools by start-up companies are discussed. The article reviews the phases of the business model and software product development. The activities in them are grouped and sample tools for each is listed. Also, the modern form of organization as the virtual office and corporation are reviewed as becoming necessary. In detail, the startup company is reviewed in the form of a virtual corporation with its characteristics. They are classified and areas of application and management issues are discussed. Finally, the coverage of activities with virtual tools is evaluated and summarized

MULTIFUNCTIONAL CAGULANTS BASED ON HIDROCARBOALUMINATES CALCIUM

The article describes harmful factors from the environmental point of view that accompany almost all stages of production of non-ferrous metals. Due to the fact that this industry requires large volume of water, these factors require special attention when cleaning wastewater. The contamination of wastewater by non-ferrous metallurgy is characterized by metal ions, particulate pollutants, acids, SAS, etc, The common feature of all these substances is harmfulness, however, they are often very aggressive and toxic also. The article focuses on the possible use of hidrocarboaluminates calcium as an active ion exchanger for cleanup wastewater metallurgical production

The Two Facets of Collaboration: Cooperation and Coordination in Strategic Alliances

This paper unpacks two underspecified facets of collaboration: cooperation and coordination. Prior research has emphasized cooperation, and specifically the partners' commitment and alignment of interests, as the key determinant of collaborative success. Scholars have paid less attention to the critical role of coordination—the effective alignment and adjustment of the partners' actions. To redress this imbalance, we conceptually disentangle cooperation and coordination in the context of inter-organizational collaboration, and examine how the two phenomena play out in the partner selection, design, and post-formation stages of an alliance's life cycle. As we demonstrate, a coordination perspective helps resolve some empirical puzzles, but it also represents a challenge to received wisdom grounded in the salience of cooperation. To stimulate future research, we discuss alternative conceptualizations of the relationship between cooperation and coordination, and elaborate on their normative implications

Consistency of Estimation

Besides accuracy, consistency and information content are important properties of the estimation. It is crucial that estimator provide realistic information about possible estimation error, especially in fusion algorithms, where several estimates from different sources are merged into one. In this thesis consistency is defined in several ways and methods for its evaluation are introduced. Mean Squared Deviation consistency is based on Chebyshev’s inequality which defines lower bound of probability mass concentrated around mean of random variable. P consistency implies that concentration ellipse around mean of the estimate with probability mass p must contain actual value of estimated parameter with probability p. Normalized deviation squared consistency implies that concentration ellipse of any probability around mean of the estimate must contain actual value of estimated parameter with probability p. Information content is defined in terms of most informative estimate, estimate which has the highest precision and yet consistent. In this work statistical hypothesis testing framework is used for consistency and information content evaluation. Hypothesis tests for consistency evaluation are derived for static parameter estimation and state estimation (filtering). Proposed consistency tests are applied to Indoor WiFi localization system in order to investigate sources of inconsistencies and adjust parameters of the system in off-line mode. It is shown that underestimated measurement noise is the main reason of estimates’ inconsistency, however, considerably underestimated process noise or motion mis-modeling might also result in inconsistent and abnormal filter’s behavior

Enhanced stability of bound pairs at nonzero lattice momenta

A two-body problem on the square lattice is analyzed. The interaction potential consists of strong on-site repulsion and nearest-neighbor attraction. Exact pairing conditions are derived for s-, p-, and d-symmetric bound states. The pairing conditions are strong functions of the total pair momentum K. It is found that the stability of pairs increases with K. At weak attraction, the pairs do not form at the $\Gamma$-point but stabilize at lattice momenta close to the Brillouin zone boundary. The phase boundaries in the momentum space, which separate stable and unstable pairs are calculated. It is found that the pairs are formed easier along the $(\pi,0)$ direction than along the $(\pi,\pi)$ direction. This might lead to the appearance of ``hot pairing spots" on the Kx and Ky axes.Comment: 7 RevTEX pages, 5 figure