FEATURES OF PERSONNEL MANAGEMENT IN NETWORK HOSPITALITY ENTERPRISES ON THE EXAMPLE OF KAZAN CITY

Abstract. In the modern world, when the number of traveling people is steadily increasing, Russia is striving to attract tourists by increasing the number of tourist exhibits. The logical answer to the constant increase in the number of tourists is an increase in the number of accommodation facilities, therefore the hotel business is among the priority areas for the development of the socio-cultural service. Since the geopolitical and economic situation is not conducive to the rest of the Russians in foreign resorts, an increasing number of our fellow citizens are choosing domestic placesfor recreation. Accordingly, we are witnessing the effect of two trends: the first is an increase in the tourist flow within Russia, the second is an increase in the number of collective accommodation facilities, which leads to increased competition in the hotel services market. In the current conditions of tough competition, those hotel enterprises that are able to satisfy and even anticipate the guests' needs win. At the same time, the struggle goes not only for the guest, but also for highly qualified staff, and the correct selection, evaluation of candidates, the adaptation of a new employee andcompetent staff training is the key to the success of a modern hotel enterprise. Despite the fact that the vector of modern scientific research has long since turned to the side of practical disciplines and the topic of personnel management has found multiple reflections in scientific works, still not all hotel enterprises in Kazan managed to build a competent personnel management system. The only exception is the international network hotels in the city, in which this problem is given special attention.Thus, this work can be used as a practical and methodical manual on competent personnel management in hotel enterprises.Keywords: hotel, company, manager, management, hotel enterprise, staff, influence

Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a $Z$ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 $< p_{\textrm{T}} < 100$ GeV and in the pseudorapidity range $2.5 < \eta < 4$. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb$^{-1}$. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

Study of the B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. In the $\Lambda_{c}^+ K^{-}$ system, the $\Xi_{c}(2930)^{0}$ state observed at the BaBar and Belle experiments is resolved into two narrower states, $\Xi_{c}(2923)^{0}$ and $\Xi_{c}(2939)^{0}$, whose masses and widths are measured to be $$m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV},$$ where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt $\Lambda_{c}^{+} K^{-}$ sample. Evidence of a new $\Xi_{c}(2880)^{0}$ state is found with a local significance of $3.8\,\sigma$, whose mass and width are measured to be $2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV}$ and $12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}$, respectively. In addition, evidence of a new decay mode $\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-}$ is found with a significance of $3.7\,\sigma$. The relative branching fraction of $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ with respect to the $B^{-} \to D^{+} D^{-} K^{-}$ decay is measured to be $2.36 \pm 0.11 \pm 0.22 \pm 0.25$, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

Social Support and Social Strain in Inter-episode Bipolar Disorder

This study focused on social support and social strain and their cross-sectional associations with instabilities in sleep and social rhythms in inter-episode bipolar disorder (BD). Thirty-eight adults diagnosed with inter-episode BD Type I or II and 38 healthy controls completed measures of social support and social strain. Instabilities in sleep and social rhythms in the BD group were assessed with 28 days of diary and actigraphy. Associations between social support, social strain, and mood symptoms in the BD group were also examined. The BD group reported lower social support and higher social strain than the control group. Additionally, social strain was positively correlated with manic symptoms in the BD group. Furthermore, there was a cross-sectional association between social support and more stable sleep on actigraphy in the BD group, although social support was not correlated with future sleep instability. These results indicate that inter-episode BD is associated with deficient social support and elevated social strain compared to controls. Social strain may be particularly important given its association with manic symptoms. The results also raise the possibility that sleep instability is related to poor social support in BD

Social Support and Social Strain in Inter-episode Bipolar Disorder

This study focused on social support and social strain and their cross-sectional associations with instabilities in sleep and social rhythms in inter-episode bipolar disorder (BD). Thirty-eight adults diagnosed with inter-episode BD Type I or II and 38 healthy controls completed measures of social support and social strain. Instabilities in sleep and social rhythms in the BD group were assessed with 28 days of diary and actigraphy. Associations between social support, social strain, and mood symptoms in the BD group were also examined. The BD group reported lower social support and higher social strain than the control group. Additionally, social strain was positively correlated with manic symptoms in the BD group. Furthermore, there was a cross-sectional association between social support and more stable sleep on actigraphy in the BD group, although social support was not correlated with future sleep instability. These results indicate that inter-episode BD is associated with deficient social support and elevated social strain compared to controls. Social strain may be particularly important given its association with manic symptoms. The results also raise the possibility that sleep instability is related to poor social support in BD