Specificity of human resources management in networked hotels of Ekaterinburg in modern conditions

The hotels of international hotel chains represented in Ekaterinburg make high requirements on the staff in accordance with international standards. Analysis of vacancies shows that the level of wages of line staff, mainly administrators of the reception, not quite corresponds to the volume of their responsibilities and requirements for candidates for the post. In comparison with the level of salary of relevant staff of local hotels, hotel chains salary is significantly lower, while personnel requirements are much higher. HR-departments provided by international standards have been reduced to one officer or eliminated because of the crisis of 2008-2009 and nowadays and because their content is very costly. Responsibility for the selection and training of staff at the same time borne by the line management department, which reduces the efficiency of this work.В отелях международных гостиничных цепей, представленных в Екатеринбурге, предъявляются высокие требования к персоналу в соответствии с мировыми стандартами. Анализ вакансий показывает, что уровень заработных плат линейного персонала, главным образом администраторов службы приема и размещения, не вполне соответствует объему их обязанностей и требований к кандидатам на соответствующие должности. В сравнении с уровнем оплаты труда соответствующих сотрудников местных отелей, зарплаты в сетевых отелях значительно ниже, тогда как требования к персоналу значительно выше. Предусмотренные международными стандартами службы управления человеческими ресурсами в связи с кризисом 2008-2009 годов и в настоящее время сокращаются до одного сотрудника, либо полностью устраняются, поскольку их содержание очень затратно. Обязанности по подбору и обучению персонала при этом ложатся на линейных руководителей отделом, что снижает эффективность данной работы

Problems of organization and holding of major events on the example of International Young Physicists' Tournament (IYPT) 2016

Ekaterinburg increasingly tends to stand out in the international arena. In this connection, it arranged more and more international events. However, the organization of such events is much more complicated than the events of lower value. The organizers must not only prepare the venue for the event, the necessary equipment, food and cultural program, but also take into account the features of guests from different countries and to anticipate the possibility of different problems and the possible ways of their solution. It is often necessary to solve the problems on the spot, and in this case only the rapid response of the organizers can help. This article describes some problems and emergency situations of the International Young Physicistsc Tournament (2016) in opinion of volunteers of this event.Екатеринбург все больше стремится выделиться на международной арене. В связи с этим в городе устраивается все больше мероприятий международного масштаба. Однако организация таких мероприятий на порядок сложнее, чем события меньшего значения. Организаторы должны не только подготовить место проведения события, необходимое оснащение, питание и культурную программу, но также учесть особенности гостей из разных стран и предвидеть возможность возникновения различных внештатных ситуаций и потенциальные пути их решения. При этом зачастую возникшие проблемы приходится решать на месте, и в данном случаем может помочь только оперативное реагирование организаторов. В данной статье описаны проблемные ситуации Международного турнира юных физиков (2016) с точки зрения волонтеров данного мероприятия

A self-consistent first-principles calculation scheme for correlated electron systems

A self-consistent calculation scheme for correlated electron systems is created based on the density-functional theory (DFT). Our scheme is a multi-reference DFT (MR-DFT) calculation in which the electron charge density is reproduced by an auxiliary interacting Fermion system. A short-range Hubbard-type interaction is introduced by a rigorous manner with a residual term for the exchange-correlation energy. The Hubbard term is determined uniquely by referencing the density fluctuation at a selected localized orbital. This strategy to obtain an extension of the Kohn-Sham scheme provides a self-consistent electronic structure calculation for the materials design. Introducing an approximation for the residual exchange-correlation energy functional, we have the LDA+U energy functional. Practical self-consistent calculations are exemplified by simulations of Hydrogen systems, i.e. a molecule and a periodic one-dimensional array, which is a proof of existence of the interaction strength U as a continuous function of the local fluctuation and structural parameters of the system.Comment: 23 pages, 8 figures, to appear in J. Phys. Condens. Matte

PEG Branched Polymer for Functionalization of Nanomaterials with Ultralong Blood Circulation

Nanomaterials have been actively pursued for biological and medical applications in recent years. Here, we report the synthesis of several new poly(ethylene glycol) grafted branched-polymers for functionalization of various nanomaterials including carbon nanotubes, gold nanoparticles (NP) and gold nanorods (NRs), affording high aqueous solubility and stability for these materials. We synthesize different surfactant polymers based upon poly-(g-glutamic acid) (gPGA) and poly(maleic anhydride-alt-1-octadecene) (PMHC18). We use the abundant free carboxylic acid groups of gPGA for attaching lipophilic species such as pyrene or phospholipid, which bind to nanomaterials via robust physisorption. Additionally, the remaining carboxylic acids on gPGA or the amine-reactive anhydrides of PMHC18 are then PEGylated, providing extended hydrophilic groups, affording polymeric amphiphiles. We show that single-walled carbon nanotubes (SWNTs), Au NPs and NRs functionalized by the polymers exhibit high stability in aqueous solutions at different pHs, at elevated temperatures and in serum. Morever, the polymer-coated SWNTs exhibit remarkably long blood circulation (t1/2 22.1 h) upon intravenous injection into mice, far exceeding the previous record of 5.4 h. The ultra-long blood circulation time suggests greatly delayed clearance of nanomaterials by the reticuloendothelial system (RES) of mice, a highly desired property for in vivo applications of nanomaterials, including imaging and drug delivery

The Magnitude and Mechanism of Charge Enhancement of CH∙∙O H-bonds

Quantum calculations find that neutral methylamines and thioethers form complexes, with N-methylacetamide (NMA) as proton acceptor, with binding energies of 2–5 kcal/mol. This interaction is magnified by a factor of 4–9, bringing the binding energy up to as much as 20 kcal/mol, when a CH3+ group is added to the proton donor. Complexes prefer trifurcated arrangements, wherein three separate methyl groups donate a proton to the O acceptor. Binding energies lessen when the systems are immersed in solvents of increasing polarity, but the ionic complexes retain their favored status even in water. The binding energy is reduced when the methyl groups are replaced by longer alkyl chains. The proton acceptor prefers to associate with those CH groups that are as close as possible to the S/N center of the formal positive charge. A single linear CH··O hydrogen bond (H-bond) is less favorable than is trifurcation with three separate methyl groups. A trifurcated arrangement with three H atoms of the same methyl group is even less favorable. Various means of analysis, including NBO, SAPT, NMR, and electron density shifts, all identify the +CH··O interaction as a true H-bond

An ab initio and AIM investigation into the hydration of 2-thioxanthine

<p>Abstract</p> <p>Background</p> <p>Hydration is a universal phenomenon in nature. The interactions between biomolecules and water of hydration play a pivotal role in molecular biology. 2-Thioxanthine (2TX), a thio-modified nucleic acid base, is of significant interest as a DNA inhibitor yet its interactions with hydration water have not been investigated either computationally or experimentally. Here in, we reported an <it>ab initio </it>study of the hydration of 2TX, revealing water can form seven hydrated complexes.</p> <p>Results</p> <p>Hydrogen-bond (H-bond) interactions in 1:1 complexes of 2TX with water are studied at the MP2/6-311G(d, p) and B3LYP/6-311G(d, p) levels. Seven 2TX^...H₂O hydrogen bonded complexes have been theoretically identified and reported for the first time. The proton affinities (PAs) of the O, S, and N atoms and deprotonantion enthalpies (DPEs) of different N-H bonds in 2TX are calculated, factors surrounding why the seven complexes have different hydrogen bond energies are discussed. The theoretical infrared and NMR spectra of hydrated 2TX complexes are reported to probe the characteristics of the proposed H-bonds. An improper blue-shifting H-bond with a shortened C-H bond was found in one case. NBO and AIM analysis were carried out to explain the formation of improper blue-shifting H-bonds, and the H-bonding characteristics are discussed.</p> <p>Conclusion</p> <p>2TX can interact with water by five different H-bonding regimes, N-H^...O, O-H^...N, O-H^...O, O-H^...S and C-H^...O, all of which are medium strength hydrogen bonds. The most stable H-bond complex has a closed structure with two hydrogen bonds (N(7)-H^...O and O-H^...O), whereas the least stable one has an open structure with one H-bond. The interaction energies of the studied complexes are correlated to the PA and DPE involved in H-bond formation. After formation of H-bonds, the calculated IR and NMR spectra of the 2TX-water complexes change greatly, which serves to identify the hydration of 2TX.</p

Investigation of Terahertz Vibration–Rotation Tunneling Spectra for the Water Octamer

We report a combined theoretical and experimental study of the water octamer-h16. The calculations used the ring-polymer instanton method to compute tunnelling paths and splittings in full dimensionality. The experiments measured extensive high resolution spectra near 1.4 THz, for which isotope dilution experiments and group theoretical analysis support assignment to the octamer. Transitions appear as singlets, consistent with the instanton paths, which involve the breakage of two hydrogen-bonds and thus give tunneling splittings below experimental resolution

Analysis of the motivation of volunteers activities of different levels

In Russia, many large international events have been held recently. Most of them are conducted with the involvement of volunteers. The main difficulty lies in the fact that a large number of volunteers do not guarantee the full provision of the event with the necessary workforce, moreover, not all volunteers have the right motivation — volunteers who want to obtain material benefits, shouldn’t take part in major projects. There are not really many motivated volunteers, and most of them appreciate in their work the possibility of self-realization and fellowship with like-minded people. To provide the important for the reputation of the country events with the relevant staff, it is necessary to conduct a thorough work on the selection and training of volunteers.В России в последнее время проводится много крупных международных мероприятий. Большинство из них организуется с привлечением волонтеров. Основная сложность состоит в том, что большое количество волонтеров не гарантирует полноценное обеспечение мероприятия необходимой рабочей силой, кроме того, не все волонтеры имеют правильную мотивацию — добровольцев, стремящихся к получению материальной выгоды, стараются не допускать до участия в крупных проектах. По-настоящему мотивированных волонтеров не очень много, и большинство из них ценит в своем деле возможность самореализации и общение с единомышленниками. Для обеспечения важных для репутации страны мероприятий соответствующим персоналом, необходимо проводить глубокую работу по отбору и обучению волонтеров