This paper reviews the digital transformation of grocery shopping, focusing on the technological innovations that have redefined consumer experiences over the past decades. By analyzing both academic literature and up-to-date information from websites, the study provides a review of the evolution of grocery shopping from traditional methods to modern, technology-driven approaches. The review categorizes developments into two primary areas: in-store and online grocery shopping. In-store shopping has progressed from traditional interactions to the implementation of self-service checkouts, handheld scanners, mobile apps, and AI-based solutions, including augmented reality (AR) and facial recognition. This paper reviews the first area which are in-store technological solutions. This study aims to highlight the revolution in grocery shopping from a technological perspective, present the most significant digital achievements, and outline the future possibilities for further advancements in this field.

This paper presents a review of the technologies and services associated with online grocery shopping. The progress in the field of online grocery shopping has been very rapid in recent years. Hence, there was a need to systematize knowledge about the latest various solutions used in this topic. The authors searched the internet, focusing on websites of different supermarkets, shops, and other services that offer online shopping, as well as reviewed scientific papers. Based on the collected material, the authors created four thematic parts, which include: (1) supermarket services; (2) dedicated grocery delivery services and farm-to-table; (3) shopping in Virtual Reality and the metaverse; smart devices and (4) AI in food ordering—the last part includes smart devices, such as smart refrigerators, ovens, their functionality, and the services connected with them. The authors refer to 243 sources. The research includes the three following objectives: (1) exploring and presenting the emerging applied ways of online grocery shopping, (2) exploring and presenting the latest technological advances related to the digitalization of grocery shopping, (3) discussing the upcoming technologies, services, and methods in online grocery shopping. This paper provides knowledge about a wide range of solutions offered by both supermarkets and stores (e.g., shopping applications, VR applications, metaverse shopping) and other companies (e.g., deliveries, product tracking), highlighting the numerous functions available thanks to smart devices (e.g., voice control, own shopping lists, control of products, their quantities and expiration dates, management of user preferences, and many more). This paper also discusses social issues related to the presented solutions, such as their influence on consumer behavior, barriers to adoption, and the associated challenges.

This paper identifies and examines the latest research on renewable energy in Poland, reviewing articles published between 2021 and 2023 indexed in the Scopus database. It analyzes 124 papers, categorizing them into 11 thematic areas which include (1) energy production, (2) energy consumption, (3) energy policy, (4) sustainable development activities, (5) technology and engineering, (6) energy storage, (7) powering vehicles, (8) awareness and attitude regarding energy, (9) finances and investments, (10) emission, and (11) other. The main objective was to analyze the state of the current research on renewables in Poland. The results highlight significant progress in renewable energy capacity, particularly in wind and solar power, driven by national policies, EU funding, and growing public support. The analysis also reveals persistent challenges related to technology, infrastructure, and policy. The authors critically evaluate the research’s relevance to Poland’s energy sector and globally. They also refer to issue of non-renewable energy sources, which, despite the development of the RES sector, still play a dominant role in the Polish energy economy. Due to this, the article not only describes the state of knowledge, but also formulates conclusions on the real needs and opportunities for the further development of energy in Poland.

With the growing trend towards the electrification of transport, it is anticipated that internal combustion engines will continue to play an important role in the production of electricity for electricity systems or the direct propulsion of vehicles. However, these engines are under considerable pressure to achieve carbon neutrality, making zero-emission fuels a key solution. One solution is the use of hydrogen, which is an extremely clean and carbon-free fuel whose combustion product is only water. The paper also introduces the KEYOU concept, which involves switching from burning propellant oil to a supercharged, lean-burn, hydrogen-fueled ignition engine. The authors provide a study on the selected issues based on 113 reviewed literature sources and highlight the achievements and potential of hydrogen engines. Based on the achievements described, the paper provides a comprehensive overview of the impact of hydrogen engines in reducing emissions as well as supporting the sustainable development of transport systems. The literature research conducted highlights hydrogen as an important solution for decarbonizing internal combustion engines and moving towards an emission-free future.

This article concerns the management of the Polish mining company Lubelski Węgiel (LW) Bogdanka S.A. The main aim of this paper was to describe the whole process of implementing a process approach to management in one of the most important mining companies in Poland. The objective of the research presented was the incorporation of the process approach in LW Bogdanka S.A. to enhance its management and to improve the effectiveness of its mining process. This paper uses a case study method and presents a practical incorporation of the process approach and its results. The first phase of the proposed solution included building a map of business processes. Then, the research consisted of an analysis of existing processes; the introduction of new solutions, mainly in the field of infrastructure and IT systems; and changing the awareness of key process owners. The motivation for applying this approach was to achieve greater efficiency and continuous improvement in LW Bogdanka S.A. The main results and achievements were not merely limited to the development of a map of processes and subprocesses, but also led to an improvement in organizational structure, changes in approach to company management, a diagnosis of problems in the most important company departments, and the proposal of solutions to them.