As organizations progressively integrate artificial intelligence (AI) into their operations, the role of human resource (HR) managers becomes monumental in navigating the complex landscape of AI practices and challenges. This study aimed to investigate HR managers' perceptions concerning AI meaning, its usage in daily business activities, presence of AI in HR departments, and opportunities and barriers for AI adoption. The research employed a single-method approach of questionnaires to gather insights from a diverse sample of HR managers across miscellaneous medium/large enterprises. The findings revealed a nuanced perspective among HR professionals, with a spectrum of attitudes ranging from enthusiasm for AI's potential to concerns about its impact on traditional HR functions. There are a practical and theoretical aspects of this study that are relevant to every industry in determining the practices and opportunities of AI in HRM which improve efficiency, reduce various costs, enhance profitability and add value to overall business.

In this paper, we are dealing with self-services that public administration could provide to all users of certain services. Here, we propose the application of electronic and mobile self-service in public administration, and the use of some new concepts that can support such service. We will also state what both the service user and the public administration should adhere to in the implementation of self-service with the use of computers and mobile devices. We will also list the key elements that must be taken into account when enabling users to self-service, and what the user needs for efficient self-service, accessing the service electronically or mobile (e-m-Service). In the paper, we will also present part of the results from the research on the use of new technologies in public administration, which was conducted in the period from October 1, 2022, to December 31, 2022.

The primary motive of this research is determining the impact of the Covid-19 pandemic on the highly complex structures such as global supply chains. The research draws conclusions about the current situation and challenges that global supply chains will face in the near future. Therefore, primary and secondary data sources, statistical indicators and researches about the effects of the pandemic on global organizational structures were consulted. The main fact is that Covid-19 pandemic is not only driver of change, but an essential accelerator of the need to restructure global supply chains. Global supply chains that want to maintain or expand their market shares in rapidly changing market conditions are forced to adapt extremely quickly their overall business concepts at all levels of these complex structures. The essential feature of this research is the definition of basic strategic guidelines for efficient adaptation to current and future needs of the global market