Purpose The purpose of this paper is to show the effectiveness of innovative mobile technologies in learning, to develop a new testing system with a mobile application and to investigate the influence of its use on the level of students’ knowledge. Design/methodology/approach Modern information assessment methods of knowledge, testing, including application of mobile devices and statistical analysis tools were used in the present research. Findings In recent times, students are motivated to use mobile technologies in education. This paper offers one of the approaches for achieving the effective integration of mobile technologies into the learning process. The software is developed for in-class testing as a client-server and its mobile application. Practical implications The practical research verified many advantages of mobile device usage during testing. It contributes to higher academic performance; in addition, it is economically advantageous as it does not require special equipment in classrooms and is psychologically comfortable for students who are accustomed to constantly using their mobile devices. Social implications Well-educated people play a role in the development of modern society. Mobile technologies can transform education into a seamless part of the ordinary life so that a person does not recognize it as training at all. The learning process will become more natural and easier and that will improve its quality. Originality/value This paper demonstrates how mobile devices can satisfy the learning expectations of students who frequently use mobile services on the Web and can attract their study interest implementing the created testing system in full-time education process.

Визначено закономірності впливу параметрів шихти на вміст Cr та Ni в продуктах відновлення. Досягнуто межі вмісту відповідних елементів: 15,1-17,1 % мас. та 0,2-7,0 % мас. Встановлено, що продукти металізації в основному складалися з твердого розчину легуючих елементів в α-Fe. Також виявлено оксид Fe 3 O 4 і карбіди-Fe 3 C, Fe 2 C. Мікроструктура губчаста розупорядкована. Мікрочастки спечені, з різним вмістом Cr та Ni Ключові слова: переробка відходів, корозійностійка сталь, вуглецевотремічне відновлення, фазовий аналіз, мікроструктура, ресурсозбереження Определены закономерности влияния параметров шихты на содержание Cr и Ni в продуктах восстановления. Достигнуты пределы содержания соответствующих элементов: 15,1-17,1 % мас. и 0,2-7,0 % мас. Установлено, что продукты металлизации в основном состояли из твердого раствора легирующих элементов в α-Fe. Также выявлены оксид Fe 3 O 4 и карбиды-Fe 3 C, Fe 2 C. Микроструктура губчатая разупорядоченная. Микрочастицы спеченные, с различным содержанием Cr и Ni Ключевые слова: переработка отходов, коррозионностойкая сталь, углеродотермическое восстановление, фазовый анализ, микроструктура, ресурсосбережение

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Introduction. The global problem of the 21st century is general planetary climate change whose direct consequences are significant warming as well as increasing water shortage and desertification of territories, which together has a merciless impact on agriculture and, subsequently, on the development of agricultural business.Problem Statement. The rational use of fresh water and water supply for agribusiness in arid, dry, and very dry regions of Ukraine, as well as the determination of the priority vectors of its adaptation to climate change, which ensure water and food security of future generations and the environment preservation are the problems tobe discussed in this publication.Purpose. The purpose of this research is determining the rational use of fresh water based on the study of foreign experience, the vectors of adaptation of agribusiness to climate change, and the strategy and tactics of its water supply in medium- and long-term horizons.Materials and Methods. In the course of the research, we have used the following methods: the economic and mathematical modelling, while determining the dependence of water use for irrigation on the average monthly air temperature and the average monthly precipitation; forecasting, for determining the volume of water use for irrigation under the condition of modernization of irrigation technologies; the method of analogies, while studying the foreign experience and the possibility of its implementation in domestic practice; monograph, for presenting the research results; abstract and logical methods, for generalizing and formulating conclusions.Results. The priority vectors of agribusiness adaptation to climate change in the regions of the steppe zone of Ukraine have been determined.Conclusions. The study of foreign experience in the rational use of fresh water has enabled us to determine the priority vectors of adaptation of agribusiness to climate change, and hence the strategy and tactics of its water supply on medium- and long-time horizons.