Urea–adipic acid (2/1)

The asymmetric unit of the title co-crystal, 2CH4N2O·C6H10O4, contains two urea mol­ecules and two half-mol­ecules of adipic acid; the latter are completed by crystallographic inversion symmetry. The crystal packing is stabilized by O—H⋯O and N—H⋯O hydrogen bonds, generating a chain along [110]. Additional weak inter-chain O—H⋯O and N—H⋯O inter­molecular inter­actions lead to the formation of a three-dimensional network

Small open economy DSGE model with a banking industry modelled on the financial intermediation approach. Evaluating the performance on UK data

This thesis proposes a new open economy DSGE RBC model with financial intermediation. The objective is to provide a general equilibrium model that can simultaneously account for the behaviour of output and interest rate spreads by solely focusing on the real side of the economy. The standard open economy model is extended to incorporate banking industry, modelled on the production approach, and foreign debt elastic interest rate, which removes the models nonsationary features. The models ability to replicate the data is tested using indirect inference method on both stationary and nonstationary UK data. The same algorithm is used to estimate the parameter values using both types of time series data. This thesis provides the first estimates for the labour share in loan production and elasticity of foreign interest rates with respect to foreign debt obligations for UK economy. The model was retested using the parameter estimates. The results indicate that the proposed framework is able to account for the joint behaviour of output, the interest rate spread and the interest on foreign debt but it was rejected on other endogenous variables

Bulgarian folk dances – a national cultural treasure and scientific field

Introduction: Bulgarian folk dances (BgFD) are a national cultural treasure and intangible cultural heritage. By studying BgFD the students from the university get in touch with the Bulgarian culture, build skills to communicate and work together. Today, the WHO recommends physical activity, such as BgFD, as the most effective strategy for chronic diseases prevention. Nationally and globally, many people choose to practice BgFD. As a result, BgFD are also an innovative scientific field that attracts research interest at a health promotion level.Aim: The aim is to investigate the impact of BgFD (as a selective discipline) on students’ health and the place of BgFD in the academic curriculum.Materials and Methods: The quantitative study included 184 students from different courses and majors, divided into two groups, studying BgFD and sports.Instruments: Three questionnaires were used - one standardized for stress assessment and two designed according to the objectives of the study, applied at the beginning and end of the semester. The statistical analysis was performed using IBM SPSS Statistics v.23. The driving hypothesis of the project is that BgFD are equivalent as a physical activity to sports.Results and Conclusion: BgFD have a beneficial effect, as well as sports, on the organization of daily living and study, on the levels of stress, and on the overall health. BgFD are a social phenomenon with an emotional component that overcomes personal and national boundaries. BgFD are a discipline that should have a "reserved place" in the academic curricula.

Research on the attitudes and the influence of Bulgarian folk dances on the subjective health levels of students from the Medical University of Varna

Introduction: Bulgarian folk dances (BgFD) optimally combine physical activity, social interaction and emotional expression.Aim: The aim of this article is to present the preliminary results of a research project investigating students' attitudes and motivations to choose BgFD as a subject, and to study the influence of practicing BgFD on their subjective health. Additionally, an anthropometric profile of the study participants is made, as well as an assessment of the students` stress levels. A driving hypothesis of the project is that BgFD are equal to any other sport activity.Methods: The study protocol consists of a quantitative and qualitative phase. Herewith are presented the preliminary results of the quantitative phase. Based on the presentation of these results, a qualitative survey (Delphi technique) will be carried out, which will lead to an expert consensus on the place of BgFD as a discipline in the students` curriculum in all universities in Bulgaria. The study included a sample of 184 students from Bulgarian language courses, from different years and majors separated into two main groups - practicing BgFD (n=92) and non-dancing (n=92 - aerobics and volleyball sport classes). The information from the collected questionnaires was processed with IBM SPSS Statistics v.23.Results: Survey results can be summarized into four areas: 1) History of physical activity; students` attitudes and motivation: Among the participants, around 37% have never practiced sports or BgFD. For 56.4% of those who are enrolled in BgFD classes, dances are the only weekly physical activity; 2) Assessing the levels of subjective health among students: "BgFD help for better physical and emotional health" - 78.8% of the BgFD group shared this statement. Overall, all the participants reported higher subjective health levels at the end of the semester; 3) Assessment of the stress levels of students: Data show that over 50% of the study participants have high levels of stress; 4) Anthropometric profile of the students: 59.74% of the participants are obese or overweight.Discussion and Conclusion: There is a renaissance of the interest in BgFD among the young Bulgarian generation, which makes the reported research findings relevant and up to date. Regarding the subjective health assessment results, it may be concluded that practicing BgFD is equal to practicing sports as a physical activity. The analysis made so far provides a serious ground for the promotion of the BgFD teaching model at the Medical University of Varna which could be applied in other universities in Bulgaria.Introduction: Bulgarian folk dances (BgFD) optimally combine physical activity, social interaction and emotional expression.Aim: The aim of this article is to present the preliminary results of a research project investigating students' attitudes and motivations to choose BgFD as a subject, and to study the influence of practicing BgFD on their subjective health. Additionally, an anthropometric profile of the study participants is made, as well as an assessment of the students` stress levels. A driving hypothesis of the project is that BgFD are equal to any other sport activity.Methods: The study protocol consists of a quantitative and qualitative phase. Herewith are presented the preliminary results of the quantitative phase. Based on the presentation of these results, a qualitative survey (Delphi technique) will be carried out, which will lead to an expert consensus on the place of BgFD as a discipline in the students` curriculum in all universities in Bulgaria. The study included a sample of 184 students from Bulgarian language courses, from different years and majors separated into two main groups - practicing BgFD (n=92) and non-dancing (n=92 - aerobics and volleyball sport classes). The information from the collected questionnaires was processed with IBM SPSS Statistics v.23.Results: Survey results can be summarized into four areas: 1) History of physical activity; students` attitudes and motivation: Among the participants, around 37% have never practiced sports or BgFD. For 56.4% of those who are enrolled in BgFD classes, dances are the only weekly physical activity; 2) Assessing the levels of subjective health among students: "BgFD help for better physical and emotional health" - 78.8% of the BgFD group shared this statement. Overall, all the participants reported higher subjective health levels at the end of the semester; 3) Assessment of the stress levels of students: Data show that over 50% of the study participants have high levels of stress; 4) Anthropometric profile of the students: 59.74% of the participants are obese or overweight.Discussion and Conclusion: There is a renaissance of the interest in BgFD among the young Bulgarian generation, which makes the reported research findings relevant and up to date. Regarding the subjective health assessment results, it may be concluded that practicing BgFD is equal to practicing sports as a physical activity. The analysis made so far provides a serious ground for the promotion of the BgFD teaching model at the Medical University of Varna which could be applied in other universities in Bulgaria

Formation and structural chemistry of the unusual cyanide-bridged dinuclear species [Ru-2(NN)(2)(CN)(7)](3-)(NN=2,2 '-bipyridine or 1,10-phenanthroline)

Crystallisation of simple cyanoruthenate complex anions [Ru(NN)(CN)(4)](2) (NN = 2,2'-bipyridine or 1,10-phenanthroline) in the presence of Lewis-acidic cations such as Ln(III) or guanidinium cations results, in addition to the expected [Ru(NN)(CN)(4)](2) salts, in the formation of small amounts of salts of the dinuclear species [Ru-2(NN)(2)(CN)(7)](3). These cyanide-bridged anions have arisen from the combination of two monomer units [Ru(NN)(CN)(4)](2) following the loss of one cyanide, presumably as HCN. The crystal structures of [Nd(H2O)(5.5)][Ru-2(bipy)(2)(CN)(7)] center dot 11H(2)O and [Pr(H2O)(6)][Ru-2(phen)(2)(CN)(7)] center dot 9H(2)O show that the cyanoruthenate anions form Ru-CN-Ln bridges to the Ln(III) cations, resulting in infinite coordination polymers consisting of fused Ru(2)Ln(2)(mu-CN)(4) squares and Ru(4)Ln(2)(mu-CN)(6) hexagons, which alternate to form a one-dimensional chain. In [CH6N3](3)[Ru-2(bipy)(2)(CN)(7)] center dot 2H(2)O in contrast the discrete complex anions are involved in an extensive network of hydrogen-bonding involving terminal cyanide ligands, water molecules, and guanidinium cations. In the [Ru-2(NN)(2)(CN)(7)](3) anions themselves the two NN ligands are approximately eclipsed, lying on the same side of the central Ru-CN-Ru axis, such that their peripheries are in close contact. Consequently, when NN = 4,4'-Bu-t(2)-2,2'-bipyridine the steric bulk of the t-butyl groups prevents the formation of the dinuclear anions, and the only product is the simple salt of the monomer, [CH6N3](2)[Ru((t)Bu(2)bipy)(CN)(4)] center dot 2H(2)O. We demonstrated by electrospray mass spectrometry that the dinuclear by-product [Ru-2(phen)(2)(CN)(7)](3) could be formed in significant amounts during the synthesis of monomeric [Ru(phen)(CN)(4)](2) if the reaction time was too long or the medium too acidic. In the solid state the luminescence properties of [Ru-2(bipy)(2)(CN)(7)](3) (as its guanidinium salt) are comparable to those of monomeric [Ru(bipy)(CN)(4)](2), with a (MLCT)-M-3 emission at 581 nm

Poly[penta-μ-aqua-μ6-methyl­ene­disulfonato-μ5-methyl­enedisulfonato-tetra­sodium(I)]

The title compound, [Na4(CH2O6S2)2(H2O)5]n, was crystallized from an aqueous solution. The sodium ions are surrounded and bridged by O atoms from coordinated water mol­ecules and sulfonate ions in a three-dimensional neutral network. The crystal structure is also stabilized by an intricate system of hydrogen bonds

Hydrogen bis­[2-(4-ammonio­phen­oxy)acetate] triiodide

In the title compound, C16H19N2O6 +·I3 −, the carboxyl­ate groups of a pair of (4-amino­phen­oxy) acetate ligands are bridged by an H atom in a rather classical configuration. The H atom is located on an inversion center and the pair of carboxyl­ate groups are centrosymmetrically related with an O⋯O distance of 2.494 (5) Å. The I3 − anion is also located on an inversion center. In the crystal, N—H⋯O and N—H⋯I hydrogen-bond inter­actions build up a three-dimensionnal network

Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) No 2016/429): bluetongue

Non peer reviewe

ПРОУЧВАНЕ НА НАГЛАСИТЕ ЗА СПОРТНИ ЗАНИМАНИЯ И ИЗСЛЕДВАНЕ НА ВЛИЯНИЕТО ИМ ВЪРХУ САМООЦЕНКАТА ЗА ЗДРАВЕ НА СТУДЕНТИТЕ ОТ МЕДИЦИНСКИ УНИВЕРСИТЕТ „ПРОФ. Д-Р ПАРАСКЕВ СТОЯНОВ“ – ВАРНА

Medical University – Varna is proud not only of its well–trained health specialists, but also of the success of the athletes who train in it. 2022 is the most successful in sports terms for our university. Dozens of medals and cups, team and individual awards enriched the collection of sports achievements. For the first time in the 60-year history of the university, students won second place in the final complex ranking of the National Universiade 2022 in May in Sofia, ranking immediately after the Sports Academy, ahead of all other universities in the country. The successes of the competitions from the program of the Varna Universiade and the Summer University Sports Games, where we also won the championship titles, were also significant.With this scientific report, we focus our attention on those students who are not included in the teams, but attend sports classes as a compulsory course. Our goal is to study what their physical activity is outside these activities and how they assess their health and the effect of the sports activities offered in sports classes to students from the Medical University – Varna