Studia Universitatis Moldaviae. Stiinte Exacte si Economice

3-12

Authors: Alexandru LUNGU

In the present paper there are derived and described some groups of − symmetry with initial cyclical group of permutation by second order, who have in quality of generating groups the cristallografic punctual groups of classical symmetry.

30-36

Authors: ON THE POTENTIAL METHOD FOR THE DEGENERATE TRANSPORTATION PROBLEM

We study the transportation problem and make some observations about cases or situations that can appear during the process of solution with the potential method. In addition, we expose an approach to improve the potential method to solve efficiently the degenerate transportation problems.

43-49

Authors: Maria CRISTEI, Ghenadie MARIN, Victor STELEA

At present, machine learning occupies an important place in artificial intelligence, and is concerned with the development of algorithms that allow an information system to learn data, rules, and algorithms. Automatic learning involves first and foremost the identification and implementation of a more efficient way of representing information in order to facilitate search, reorganization and change. In this respect, this article describes the utility and applicability of supervised auto¬mated learning techniques to prediction problems and their implementation in the development of computer applications. The elaborate application is unique in its way of executing the Machine learning prediction model. The methodology used in the developed application is mixed, including state-of-the-art complex technologies: the Jupyter Notebook development environment, the Python programming language along with its most popular bookkeeping libraries used in machine learning, Flask web application development tools.

54-57

Authors: Vasile BOTNARIUC, Ludmila GAGARA, Leonid GORCEAC, Boris CINIC, Andrei COVAL, Semion RAEVSCHI, Cornel ROTARU

The capacitance –voltage-conductivity-frequency dependencies of n+-po-p+InP with and without n+CdS frontal layer, obtained by using of gaseous phase epitaxial technology in a In-PCl3-H2 system and deposition in a quasi-closed volume, were studied. It was established that the impurity distribution in the space charge region of such junctions is of a linear gradient, and at the frequencies of 7…10 MHz the structure impedance is determined by the inductance resistance. The surface state concentration in n+-po-p+InP structures with the n+CdS frontal layer is by an order of magnitude lower than in the same structures without it, which can enhance the efficiency of solar cells based on them.

62-68

Authors: Dumitru UNTILA, Igor EVTODIEV, Iuliana CARAMAN, Valeriu KANTSER, Nicolae SPALATU, Liliana DMITROGLO, Silvia EVTODIEV, Dorin SPOIALĂ, Irina ROTARU, Petru GAȘIN

GaSe single crystals doped with Eu (0.025, 0.05, 0.5, 1.0 and 3.0 at%) were grown by Bridgman method using Ga, Se and Eu elementary components. The crystalline structure and vibration modes of the GaSe: Eu crystals lattice were studied by X-ray diffraction and Raman spectroscopy. Eu atoms arranged in the van der Waals space of GaSe: Eu crystals form Eu-Se valence bonds and restructure hexagonal lattice of GaSe leading to EuGa2Se4 crystallites formation. Defects generated by EuGa2Se4 crystallites lead to broadening and shifting of single phonon peaks present in Raman spectra towards shorter wavenumbers, and at the same time, activate the longitudinal optical vibrations of EuSe sublattice.

73-81

Authors: Galina ULIAN, Silvestru MAXIMILIAN, Efim ARAMĂ

In all countries, healthcare is the most important sector, because health has a direct impact on living standards, on quality of life. The authors of the study believe that the introduction of TELEMEDICINE will contribute to more efficient activity in this sector by reducing medical errors, in increasing the quality of medical services; increasing the professional level of doctors; timely identification of patients' illnesses; improvement of doctors' study programs; efficient use of doctors' time; increasing synergic efficiency; reducing patients' time for effective referrals to doctors; increasing the accessibility of rural population to medical services.

90-96

Authors: Iulia CAPRIAN

Insurance has emerged and has been established, with the ultimate goal of meeting the needs of man, of his conscious protection requirements by assuring the action of various random events. Through insurance, some economic relations are established between people in the process of production, repair, exchange and consumption of material values. The insurance guarantees all economic agents the recovery of damages.

102-107

Authors: Mihail GÎRLEA

The modelling of a banking business plan needs to be carried out in tight correlation to the intended management scope, if the manager intends to double profit, he will thus take on a greater risk and if he intends to apply a development strategy starting from the minimization of risks, profits will be smaller but certain. Any entity survives in interdependence with the internal and external environment from which it is part of and therefore a company exists in relation to those surrounding it. From this point of view, two main tendencies may be observed in the development of a business model at the beginning of the XIIth century: the development of a durable business and corporate governance. In order to obtain enhanced efficiency, especially in the integrated markets, like the one which is specific for the European Union, banks are obliged to pay more attention to the best practices. But, in the same time, the increase of competition on these markets leads to an increase of assumed risks and these results in the regulation authorities’ practice of offering a more prominent role to capital adequacy in prudential regulation.

114-118

Authors: Tudor SULA

In order to streamline the activity of the credit system and activate the investment crediting of the real sector of the economy of the Republic of Moldova, on the basis of statistical data, there was performed an analysis of the dynamics and the structure of money supply, including the analysis of the interaction between the monetary and crediting indicators, as well as of factors influencing on the evolution of monetary and crediting indicators during the period 2005-2016. Thus, in order to streamline the activity of the credit system of the Republic of Moldova at present, it is necessary to promote a monetary policy based on the correlation and adjustment of the macroeconomic, monetary and credit indicators; to achieve the objectives of the monetary policy, new international approaches and practices are needed, including those recommended by international financial organizations to improve prudential supervision. The National Bank of Moldova is expected to work more efficiently with the Government of the Republic of Moldova to provide sufficient investment resources to meet the needs of the real sector of the economy.

124-130

Authors: Elena PETREANU

In this paper the aspects of the legal framework regulating the internal audit are discussed with the identification of the problems in its organization and functioning, it is also elucidated the international organization of the internal audit and the possibility of taking over the advanced practices for the functioning of the internal audit of the Republic of Moldova.

140-144

Authors: Владимир ДОЛГИ

Management accounting system summarizes processes and analyzes information received from all structural units of the company, and since all administrative decisions, taken on the basis of operational data of management accounting and analysis, have long-term effects aimed to implement the enterprise’s strategy, it is an integral component of mana¬ge¬ment insurance company.

151-155

Authors: Анна ЛИЧМАН

The features of the organization of accounting of transport-expedition operations are considered. The objects of accounting, the order and organization of their reflection in the system of integrated accounting are investigated.

164-169

Authors: Екатерина ЗАДОРОЖНАЯ

Among the many existing definitions defining the essence of social tourism, the idea prevails that this species is just a branch of the general economic sphere, which is divided into commercial and social parts. The study suggests a different view on social tourism, which shows its deep and mutually beneficial relationship with the socio-economic development of the regions of the world. In such a definition, social tourism should already be considered as a direction of general social policy, which, using its tools to raise funds from private sources, takes an active part in the maintenance and development of tourism and general infrastructure. Applying the system of blockade (cryptoeconomics) in various regions of the world (countries), this approach will help to reduce the cost of organizing external social tourism as the basis for globalization, continentalization and international partnership.

177-183

Authors: Tatiana DIACONU, Ludmila PASCARI

Improving performance in the agri-food sector is a priority for the Moldovan economy. The high competitiveness, the diversification of the range of products and the way of establishing the main markets are only a few conditions that would lead to the efficient management of the agri-food sector. In order to make commercial management more efficient in the agri-food sector, the authors have applied a way through which managers can enhance their performance in selling agri-food products.

190-201

Authors: Екатерина ГЕРМАН

This article examines the system of legal environment for foreign direct investment in the Republic of Moldova. Mainly it focuses on such international legislative acts as double taxation and bilateral investment treaties concluded between the Republic of Moldova and the other countries. The paper presents the impact of tax exemption and tax credit methods on attracting different types of foreign direct investment in the Republic of Moldova. The author has defined the most effective and most ineffective double taxation and bilateral investment treaties for the Republic of Moldova in the context of FDI attraction. As the result of the analysis author has specified the countries to conclude the double taxation and bilateral investment treaties in future.

208-215

Authors: Natalia GAVRILAȘ

This article highlights the educational policies that have been implemented in the educational system of the Republic of Moldova, especially in higher education. Higher education has undergone a lot of changes since the proclamation of independence and continued to this day. The all changes made were based on the connection of the higher education system to the European rigor, in other words its Europeanization. The adaptation of the higher education to the conditions required by the EU, will provide the necessary compatibility and competitiveness on the European academic market, which will increase the academic mobility of the involved actors.