This paper introduces the Integrated Port Environmental Process Maturity Model (IPEPMM), a theoretical framework aligning environmental process maturity with measurable performance outcomes in maritime ports. The model synthesizes two previously independent approaches: the Environmental Process Maturity (EPM) ladder, which structures environmental capability development, and the Port Environmental Index (PEI), which quantifies environmental outcomes through standardized indicators. By embedding IoT-enabled data governance and stakeholder legitimization into one cohesive system, IPEPMM bridges the gap between process- -based maturity and evidence-based performance. The framework redefines maturity stages as verifiable managerial commitments, linking capability progression to quantitative environmental improvements. This conceptual integration offers both theoretical advancement and practical guidance for achieving accountable, data-driven environmental management in smart ports while outlining directions for empirical validation and model refinement.
This study aims to assess the stability of the health potential of manuka and goldenrod honeys during storage. The water content in honeys was determined by refractometry, while the total polyphenol content was determined by the Folin-Ciocalteu method, and the antioxidant activities against the DPPH radical and the ABTS cation were determined. These determinations were made before storage and at 4-week intervals during the 16-week storage of the honeys, at 5°C, 20°C, and 30°C. The results were statistically analyzed using Student’s t-test, multivariate analysis of variance (MANOVA), and Tukey’s post hoc test. The results showed that manuka honey contained significantly more polyphenolic compounds and had a higher antioxidant capacity than goldenrod honey. Storage-induced changes in health potential occurred more rapidly in goldenrod honey than in manuka honey. The rate of these changes was determined by storage temperature. The slowest rate of decomposition was at 5°C, and the fastest at 30°C. Therefore, it can be concluded, that the most favorable temperature for storing opened honey packages is 5°C.
The beginnings of nanotechnology date back to 1959, when Richard Feynman gave his famous lecture that has inspired many scientists. The development of methods of obtaining results (top-down and bottom-up) over the following years has meant that a multitude of nanometric structures are now known, and knowledge about their properties and application possibilities is also broader. Today, cosmetics manufacturers choose nanostructures for several reasons, namely: penetration through the skin, targeted delivery of active ingredients, achieving stability, and obtaining new color elements. This article is a review of the latest knowledge about the properties of nanostructures and their application potential for cosmetic formulations.
The finite 1-bullet silent duel is considered, involving two duelists who shoot with exponentially-convex accuracy through a uniformly quantized time. The duel is a symmetric matrix game whose optimal value is 0, and each of the duelists has the same optimal behavior, whether it is in pure or mixed strategies. The actual beginning is never optimal in the duel. Apart from the very end of the duel, the conditions for the optimal time moment existence are found. Numerical experiments confirm that the optimality can be manipulated by changing the accuracy factor that scales the payoffs. The results are applicable in systems under limited or censored communication with uncertainty, latency, and lucrative delayed actions. Some examples of such set-ups are time-sensitive information release (privacy and censorship), queueing and load balancing (information science and telecommunication systems), and block proposal timing for decentralized consensus protocols (in Proof-of-Work and Proof-of-Stake).
The article examines the impact of digital transformation on logistics customer service in international transport enterprises within the framework of Economy 4.0. A qualitative approach was applied, drawing on a systematic review of 16 peer-reviewed scientific publications and 9 major industry and company reports, complemented by an illustrative examples analysis of Uber Freight, DHL, DB Schenker, and Trans.eu. Findings show that automation, AI, data analytics, and digital interfaces enhance service by enabling personalization, continuous tracking, faster communication, and higher customer satisfaction. Benefits include efficient shipment handling, operational clarity, and responsiveness. However, challenges remain, such as uneven technology adoption and limited data access. The study concludes that digital transformation requires not only technological investment but also organizational change, workforce upskilling, and a customer-focused strategy. It identifies key technologies and provides a comparative analysis of digital platforms. This also addresses the digital transformation in logistics customer service of international transport enterprises, combining interdisciplinary research in the fields of management and quality science with perspectives from economics and finance.
Przed branżą logistyki magazynowej stają coraz większę wyzwania związane z koniecznością zmniejszenia negatywnego wpływu na środowisko, związanego z emisją gazów cieplarnianych i wdrażaniem celi zrównoważonego rozwoju. Współczesne przedsiębiorstwa coraz częściej dostrzegają konieczność inwestowania w ekologiczne rozwiązania, które pozwalają chronić środowisko i zwiększać efektywność operacyjną. Artykuł analizuje kluczowe strategie, które mogą doprowadzić do obniżenia emisji dwutlenku węgla w sektorze. Wśród nich znajdują się: wykorzystanie odnawialnych źródeł energii, wdrożenie inteligentnych systemów zarządzania energią, optymalizacji gospodarki odpadami, w tym realizacja koncepcji „zero waste i wykorzystanie nowoczesnych materiałów izolacyjnych i technologii energooszczędnych. Artykuł prezentuje przykłady wdrożenia ekologicznych rozwiązań w magazynach oraz analizuje ich ekonomiczne i środowiskowe korzyści. Inwestycja w „zielone technologie” pozwala na ochronę środowiska, oszczędności finansowe oraz sprostanie rosnącym wymaganiom konsumentów.
The maritime industry is undergoing a profound shift towards environmental sustainability through the adoption of green shipping. This paper examines the pivotal role of marine engineering in advancing sustainable practices and enhancing pollution control within the sector. It highlights the role of advanced propulsion systems, including methanol engines, ammonia-based propulsion, and hydrogen fuel cell alongside digital monitoring technologies that help optimize energy use and emissions control. The paper also assesses the economic feasibility of transitioning to sustainable shipping practices. Additionally, it emphasizes the crucial involvement of port authorities, who contribute through targeted incentives and green infrastructure programs. Regulatory frameworks, international maritime regulations and industry collaboration for sustainable shipping strategies further underscore the urgency of these efforts. As the industry embraces a greener future, marine engineers play a crucial role in shaping a more sustainable and resilient marine transport system that benefits both the environment and society.
In this work we describe in detail our novel computation method for predicting the EACN hydrophobicity parameter of hydrophobic compounds, which is used in the HLD equation developed by Salager. The values of EACN obtained in such a way can be applied to predict the phase equilibria in emulsions or microemulsions as well as various physicochemical properties describing these systems by means of the HLD-NAC theory. Application of the HLD-NAC theory as a predictive tool for excipients used in cosmetic or pharmaceutical products may enable the rational design of new products based on emulsions or microemulsions, eliminating in practice the need for many problem-solving efforts and long-term product development. The computed values of the EACN were compared with the experimental data published in the literature for 141 hydrophobic compounds. We have found that the computation method described in this work applied to various hydrophobic compounds leads to the numerical values of the EACN being in a very good agreement with the corresponding experimental values published in the literature. It should be noted, however, that the proposed method is not suitable for predicting EACN values of triglycerides and edible oils.
This article discusses the proper implementation of the ISM Code by shipowners, its subsequent implementation, and the achievement of effective performance in order to obtain a Safety Management Certificate, and its subsequent validation and renewal. As required by IMO regulations, this code is intended to create conditions for safe ship operation, cooperation with shipping-related institutions, and the mitigation of the risks and consequences of environmental pollution. Primarily, this problem concerns shipowners and superintendents who wish to cut shipping costs by significantly reducing the conditions for safe ship operation. The article highlights the interdependencies between the stakeholders and a number of existing or potential problems.
This article addresses very important social issues related to the dynamic growth of consumption of pro-health products based on surveys. The main objective of the article was to discover the respondents' knowledge of pro-health products, the frequency of their consumption and the factors influencing the purchasing decisions of these products in the Polish market. The survey found that respondents consume pro-health products several times a week (31%), once a day (21%), or several times a day (16%). Socio-demographic factors, such as gender, age, education and place of residence were an important criterion (p<0.05) determining the frequency of consumption of pro-health products by consumers. In purchasing decisions on health-promoting products, consumers value most the composition and health-promoting properties of these products.
Techniki druku przestrzennego umożliwiają formowanie trójwymiarowych obiektów poprzez sukcesywne nanoszenie kolejnych warstw materiału, zgodnie z wcześniej opracowanym modelem numerycznym. Zasadniczym celem niniejszej pracy jest analiza właściwości mechanicznych wybranych materiałów stosowanych w druku przestrzennym elementów maszyn oraz urządzeń okrętowych. Badania eksperymentalne próbek wykonanych metodą addytywną przeprowadzono w oparciu o plan ortogonalny, w którym czynniki doświadczalne zostały dobrane w sposób umożliwiający niezależną ocenę wpływu każdego z nich na wyniki pomiarów. Takie podejście pozwoliło na eliminację wzajemnych interferencji między zmiennymi oraz uzyskanie wiarygodnych i porównywalnych rezultatów. W ramach badań przygotowano zestaw próbek o pięciu różnych poziomach wypełnienia: 20%, 40%, 60%, 80% oraz 100%. Następnie poddano je statycznej próbie rozciągania w celu określenia parametrów wytrzymałościowych, takich jak granica plastyczności, wytrzymałość na rozciąganie, moduł Younga oraz odkształcenie względne. Uzyskane wyniki zestawiono w formie wykresów i tabel, które umożliwiły szczegółową analizę wpływu struktury wewnętrznej i poziomu wypełnienia na właściwości mechaniczne badanych materiałów.
Celem artykułu jest porównanie aktywności żeglarskiej w trzech regionach południowego wybrzeża Morza Bałtyckiego: Pomorza Przedniego w Niemczech oraz Zachodniopomorskiego i Pomorskiego w Polsce. Badanie przeprowadzono wśród kapitanów jachtów żaglowych i motorowych w trakcie rejsów, w trakcie których zawijali oni do jednego z portów objętych badaniem. Przeanalizowane zostały wielkość, rodzaj napędu oraz forma własności jachtów, wielkość i struktura załogi oraz długość rejsów i czas postoju w porcie. Wyniki zaprezentowano w formie diagramów, z podziałem na trzy badane regiony. Uzyskane rezultaty i wnioski mogą mieć zastosowanie w projektowaniu i podnoszeniu jakości usług morskich portów jachtowych oraz stanowić podstawę opracowania koncepcji dalszych badań i analiz. Materiał badawczy został zgromadzony w ramach projektu – inicjatywy marketingowej South Coast Baltic.
