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The reaction of thiosemicarbazide and sodium pyruvate has been thoroughly studied and the novel crystal form of pyruvic acid thiosemicarbazone (H2pt) and its sodium salt was obtained. Compounds were characterized by IR spectra, melting points, elemental analysis, conductometric measurements and single-crystal X-ray analysis. A detailed comparative analysis of crystal structures of these compounds is given, as well as comparison with some of the earlier known complexes containing H2pt. The two novel crystal structures exhibit notably different hydrogen bonding patterns, mutually and in comparison with previously reported crystal form of H2pt. All crystal structures are stabilized by extensive network of N–H⋅⋅⋅O, O–H⋅⋅⋅O and N–H⋅⋅⋅S hydrogen bonds. The cyclic hydrogen bonding motif involving the thioureido moieties of the ligand is the only one which repeats in each structure.

t(14;18)(q32;q21) translocation is an important genetic feature of follicular lymphoma resulting in antiapoptotic B-cell lymphoma 2 (BCL2) protein overexpression. On chromosome 18 breakpoint-site variation is high but does not affect BCL2. Breakpoint most commonly occurs at major breakpoint region (MBR) but may happen at minor cluster region (mcr) and between MBR and mcr at 3′MBR and 5′mcr. The aim of this study was to analyze the correlation of t(14;18)(q32;q21) breakpoint site with clinical characteristics in follicular lymphoma.

The aim of the study was to evaluate the independent prognostic role of PIK3CA activating mutations and an association between PIK3CA activating mutations and efficacy of adjuvant endocrine therapy (ET) in patients with operable invasive lobular carcinoma (ILC).

Diffuse large B-cell lymphoma (DLBCL) is the most common non-Hodgkin lymphoma. The expression of CD56 in DLBCL is highly unusual. Little is known about its incidence and clinical importance. So far, no genetic profiling was performed in CD56 positive DLBCL.

The research was designed as a cross-sectional study in two time periods (2014 and 2019) on a selected sample in 12 cities of the Republic of Serbia. It aims to find out about the level of job satisfaction of employees in the municipal police (Official Gazette of the RS, No. 51/2009) - militia (Official Gazette of the RS, No. 49/2019). In order to obtain valid results from the respondents, the measurement of the degree of satisfaction was carried out by means of an anonymous standardized questionnaire for measuring job satisfaction - Job Satisfaction Survey (JSS). The collected data were processed by Descriptive statistical analysis (Macura, Kovacevic, 2018), determined is medium value, relationships and connections with categorical by division on the subscales and total scales For pleasure by work: dissatisfied, ambivalent and satisfied. T test of independent samples performed is a comparison of mean values on the job satisfaction scale and all its subscales. Standard multiple regression analysis of certain is mutual and influence and statistics the significance of the set variables on Employee Job Satisfaction. The results showed a statistically significant influence between the subscales on the job satisfaction scale, where the greatest influence on employee dissatisfaction in 2014 was the salary, promotion, benefits, rewards and the very nature of the job. The greatest influence on employee ambivalence was satisfaction with work procedures and satisfaction with communications in 2014, while in 2019 the greatest influence on employee ambivalence was satisfaction with co-workers, rewards, the very nature of work and communication.

Background: The article presents an MCDM model based on the MEREC and WISP-S methods for pallet truck selection. Purpose: The main purpose of the study was to apply a new MCDM model for pallet truck selection in the textile workshop. Study design/methodology/approach: This article presents a simplified adoption of the Simple Weighted Sum Product (WISP) method, the Simplified WISP (WISP-S) method. The proposed method has fewer computation steps than the regular WISP method. In addition, this study proposes a new hybrid MCDM model in the literature by combining the MEREC method and the WISP-S method. Finding/conclusions: The obtained results can be achieved in a shorter time compared to regular WISP. The application of the new method is considered in this study. In order to check whether the WISP-S method achieves accurate results, the results of the WISP-S method and the results of the ROV and WASPAS methods were compared. As a result of the comparison of the results of the methods, it was observed that the WISP-S method achieved accurate results. Limitations/future research: As a direction for future research, other MCDM models can be applied for solving the same problem. When it comes to the limitations of the proposed model, it can be mentioned that the MCDM model is based on the use of crisp numbers.

The structures of the first two complexes with bidentate coordination of aminoguanidine Schiff base, i.e., 2-acetylpyridine-aminoguanidine (L), are reported. The complex of the formula [Cd2Cl6(HL)2] (1) was obtained in the reaction of warm aqueous solutions of chloride salts of Cd(II), Zn(II) and the ligand, while the reaction of cadmium bromide and the ligand in the presence of deprotonating agent as well as ammonium thiocyanate resulted in the formation of the complex in which Schiff base has both the role of the ligand and the counterion, viz., [HL][Cd(HL)(NCS)2XY]·H2O (2), where X is Cl- or Br-, and Y Br- or SCN-. The complexes were characterized by IR spectroscopy, elemental analysis, conductometric measurements and single crystal X-ray diffraction. The unusual bidentate coordination of the Schiff base lead to significant changes in the geometry of this molecule (from almost planar in free form and as a tridentate ligand to twisted as a bidentate ligand). Besides, in complex 1 relatively rare bridging coordination of Cl- in octahedral Cd(II) is found, while the crystal structure of complex 2 exhibits substitutional disorder, and contains four different anions: [Cd(HL)(NCS)2Br(SCN)]- (ca. 61 %), [Cd(HL)(NCS)2Cl(SCN)]- (ca. 35 %), [Cd(HL)(NCS)2Br2]- (ca. 3 %) and [Cd(HL)(NCS)2ClBr]- (ca. 1 %).

The task of the communal police is primarily reflected in the provision of assistance and services that have their own specifics. When it comes to the communal police in the Republic of Serbia, in that case the duties are reflected in the performance of supervision and control in accordance with the legal authorizations of the city regulations. Accordingly, the communal police, by performing tasks within their jurisdiction, ensures the performance of tasks within the jurisdiction of the City of Zajecar, in the areas of communal activities, environmental protection, people and goods, protection and maintenance of order in the use of land, space, local roads, streets and other public facilities, as well as the unhindered performance of certain tasks within the jurisdiction of the city, and so forth. Having in mind the specifics of the communal police, the aim of the research is to show the efficiency of the work of the Communal Police when providing assistance (2014-2019) through a systematic approach to the processing of data from archival materials, on the example of the service provided to the city authorities, which refers to providing assistance to PC Parking Service Zajecar.

We assessed the prevalence, localization, type and outcome of occult cancer at risk-reducing salpingo-oophorectomy or salpingectomy (RRSO) in asymptomatic carriers of pathogenic or likely pathogenic BRCA1/2 variants and high-risk BRCA1/2 negative women.

The reaction of 4-nitro-3-pyrazolecarboxylic acid and Cu(OAc)2⋅H2O in ethanol resulted in a new coordination compound [Cu2(4-nitro-3- -pzc)2(H2O)6]2H2O (4nitro-3pzc = 4-nitro-3-pyrazolecarboxylate). The compound was investigated by means of single-crystal X-ray diffraction and infrared spectroscopy. The biological activity of the complex was also tested. In the crystal structure of [Cu2(4nitro-3-pzc)2(H2O)6]2H2O, the Cu(II) ion is in a distorted [4+2] octahedral coordination due to the Jan–Teller effect. A survey of the Cambridge Structural Database showed that the octahedral coordination geometry is generally rare for pyrazole-bridged Cu(II) complexes. In the case of Cu(II) complexes with the 3-pyrazolecarboxylato ligands, no complexes with a similar octahedral coordination geometry have been reported. Biological research based on determination of the inhibition effect of the commercial fungicide Cabrio top and the newly synthesized complex on Ph. viticola were performed using the phytosanitary method.

Leadership becomes an important topic of research in the organizational theory as it is an essential factor for the success of organizations. Leadership can be understood as a process of influencing followers based on the clear values and beliefs. Organizational culture is largely evolving under the influence of leadership, and the culture of an organization in some segment can also affect the leadership. The efficient organizations in order to survive in increasingly competitive business conditions require a tactical and strategic thinking as well as the creation of a culture by the leader. Vision and mission of the organization can be realized only if the leader creates a culture dedicated to the support of this vision. Bearing in mind that the natural resources are a factor necessary for the functioning of societies in the modern world, the aim of the manuscript was to determine the role that a leader has in creating an organizational culture that fosters the concept of preserving the natural resources.

The modern world is moving from an industrial society towards a knowledge-based economy. In such a society, there is a need for inventive leaders, i.e. the leaders who will become the key comparative advantage of modern organizations. Therefore, in today's business conditions, more attention is paid to leadership. As a specialized management discipline, leadership is becoming the inevitable factor that has an impact on the business performance of organizations. Leadership can be seen as a process in which an individual influences the other members of the group in order to achieve common goals. Leadership should not be focused on one single position or one single individual, but on certain characteristics that have to be developed by all the members of the organization. Bearing in mind the fact that sustainable development is an important issue for mankind, as well as for organizations, the paper is aimed at determining the role that a leader has in empowering and supporting employees towards sustainable development.

To overcome obstacles within the Slovenian organised cervical cancer screening programme, a randomised pilot study of human papillomavirus (HPV) self-sampling among non-attenders was performed, aiming to assess three different screening approaches.

BRAF, NRAS and c-KIT mutations are characteristics of tumour tissues that influence on treatment decisions in metastatic melanoma patients. Mutation frequency and their correlation with histological characteristics in Slovenian population have not been investigated yet.

Leadership becomes an important topic of research in the organizational theory as it is an essential factor for success of organizations. Leadership can be understood as a process of influencing followers based on clear values and beliefs. Leaders, based on their own power, create trust in the organization and desire for followers to achieve the goals of both the group and organization. Bearing in mind that the natural resources are a factor necessary for functioning the societies in the modern world, the main goal of this paper is to determine the leadership styles in organizations that apply the concept of preservation the natural resources in their operations.

Every organization today faces the problem of decision making. In this regard, the intent of this paper is to present an approach based on the multi-criteria decision-making methods. Primarily, the proposed approach is aimed to help solving problem of choosing the optimal production lines in the metallurgical industry. The proposed approach is based on the use of the AHP method for determining the weights of criteria, whereas the Compromise Programming is used for selection the alternatives. The usability, applicability and efficiency of the proposed approach is demonstrated in a conducted case study of selection the production lines in the metallurgical industry.

In modern business conditions, more and more attention is paid to the introduction of internal audit in our everyday practice and its development and improvement. In this context, the question arises whether the level of development of internal audit in enterprises in the Republic of Serbia corresponds with the achieved degree of development of that profession in the countries of a developed market economy, as well as the role of internal audit in the function of management that manages the enterprise. This issue is also a fundamental problem of this research. The aim of the research is to theoretically and empirically process the relationship between internal audit and enterprise management and to investigate the degree of development of internal audit in enterprises operating in the Republic of Serbia. Empirical research provides answers to the key questions that are the foundation of the research itself, which is: Does internal audit contribute to the improvement of business management? The results of the conducted empirical research point to the conclusion that internal audit contributes to the improvement of business management in companies in the Republic of Serbia. but also point to slow development of internal audit as a profession.

The survival of a company on the market is possible if there is a good company managing, led by agile and professional management. Company development is a general objective and it can be achieved if the management of the company managed to establish their own style of organization and management. In addition to the aforesaid, the management should have a developed system of internal control within the regular and continuous business operations. Our contribution is reflected in the presentation of mode of managing nursery-garden plant production, using internal control for the benefits of management. We found that the application of detected risks in said production could be presented and illustrated in a range of risks, all of it with the aim of making management decisions that will reduce the overall risk of an agricultural company's business operations.

A new salt of Schiff base of aminoguanidine and 2-acetylpyridine, and its zinc(II) complex were obtained and their physicochemical and structural properties studied. The reaction of an aqueous solution of the chloride ligand salt and NH4NCS resulted in formation of the dithiocyanate ligand salt, L·2HNCS, while the reaction of the obtained salt with zinc(II) acetate gave a neutral complex of the formula [ZnL(NCS)2]. In this complex, chelate ligand is coordinated in its neutral form, in a common tridentate NNN manner, via pyridine, azomethine and imino nitrogen atoms of the aminoguanidine fragment. This coordination mode results in formation of two strained five-membered metallocycles. Zinc(II) is situated in a distorted square-pyramidal environment of the tridentate ligand and one thiocyanate ion in the equatorial and the other thiocyanate ion in the apical position. The crystal structure of the ligand salt is stabilized by N–H…N and N–H…S interactions formed between the cationic and anionic species, while the three-dimensional crystal packing of the complex units is based on weak N–H…S interactions which involve the S acceptors from both NCS ligands. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 172014]