Loyalty programs in online bookshops

Статья посвящена проблеме определения и систематизации программ лояльности, применяемых в книжных интернет-магазинах. Автором подробно рассмотрены все виды материальных и нематериальных приемов привлечения и удержания клиентов в сфере книгораспространения, для каждого из них приведены примеры из российской практики. Приведены и интерпретированы результаты исследования программ лояльности сорока отечественных книжных интернет-магазинов.The article covers a problem of definition and systematization of loyalty programs that used in online bookshops. The author examines in detail all types of financial and non-financial methods of attracting and retention customers in books spreading. Every method has examples from the Russian practice. The results of research of loyalty programs of forty Russian online bookshops

Localization and Broadband Follow-Up of the Gravitational-Wave Transient GW150914

A gravitational-wave (GW) transient was identified in data recorded by the Advanced Laser InterferometerGravitational-wave Observatory (LIGO) detectors on 2015 September 14. The event, initially designated G184098and later given the name GW150914, is described in detail elsewhere. By prior arrangement, preliminary estimatesof the time, significance, and sky location of the event were shared with 63 teams of observers covering radio,optical, near-infrared, X-ray, and gamma-ray wavelengths with ground- and space-based facilities. In this Letter wedescribe the low-latency analysis of the GW data and present the sky localization of the first observed compactbinary merger. We summarize the follow-up observations reported by 25 teams via private Gamma-rayCoordinates Network circulars, giving an overview of the participating facilities, the GW sky localizationcoverage, the timeline, and depth of the observations. As this event turned out to be a binary black hole merger,there is little expectation of a detectable electromagnetic (EM) signature. Nevertheless, this first broadbandcampaign to search for a counterpart of an Advanced LIGO source represents a milestone and highlights the broadcapabilities of the transient astronomy community and the observing strategies that have been developed to pursueneutron star binary merger events. Detailed investigations of the EM data and results of the EM follow-upcampaign are being disseminated in papers by the individual teams

Диагностические критерии тяжести обструктивного синдрома и способы его коррекции у больных бронхиальной астмой и хроническим бронхитом

The combination of bronchial asthma and chronic bronchitis is inevitable in old astmatic patients. The tolerance for sympatomimetic bronchodilatators and small reversebility are the grounds for elaboration of optimal schemes of bronchodilatation therapy. The including of antycholinergic agents into medical programs allow to obtain improvement of bronchial conduction and decrease the use of sympatomimetics.Сочетание бронхиальной астмы и хронического бронхита неизбежно у пожилых астматиков. Толерантность к симпатомиметикам, малая обратимость бронхиальной обструкции являются предпосылкой для разработки оптимальных схем бронхолитической терапии. Включение в лечебную программу антихолинергических препаратов позволяет добиться улучшения бронхиальной проходимости на фоне снижения потребности в симпатомиметиках