Basic Principles Research Articles

The law of perfidy and ruses of war at sea

Abstract The principle of distinction is a fundamental principle in the law of armed conflict, aimed at protecting civilians and civilian objects from direct attacks. Adherence to this principle is crucial for minimizing the humanitarian impact of warfare. Nevertheless, the longstanding practice of ruses of war, deeply embedded in customary international law, complicates the application of this principle in combat. While certain deceptive tactics are allowed, the line between acceptable ruses and forbidden acts of perfidy is often unclear, especially in naval warfare. The evolution of modern warfare technology further obscures these distinctions, raising important legal questions regarding their relevance today. This article critically examines the existing legal framework governing ruses and perfidy at sea and explores how these rules apply to contemporary naval operations. Finally, the article identifies key legal gaps and proposes pathways for reform to better align the law with current realities.

Catalyst for the Generation of OH Radicals in Advanced Electrochemical Oxidation Processes: Present and Future Perspectives

Heterogeneous Advanced Oxidation Processes (H-AOPs) are considered a new process for removing emerging pollutants. In this case, the high reactivity of hydroxyl radicals is used to degrade persistent organic pollutants. This review explores the state-of-the-art catalyst for hydroxyl radical generation in AOPs. As a parasite reaction, chloride ions appear in alkaline conditions and compete with the active sites. The theoretical foundation of catalyst performance is explored, focusing on the fundamental principles that govern the efficiency and mechanism of hydroxyl or chloride radical production. The synthesis and electronic modification sections explore the modifications of catalysts. It discusses key methodologies for catalyst preparation, with a particular emphasis on electronic modification that enhances both activity and stability. Finally, laboratory and pilot applications highlight the effectiveness of novel or modified catalysts in different scenarios. These last findings provide insights into the future directions for research and application, aiming to draw attention to the gap between laboratory studies and real-world implementations.

Standardized A-echography in the diagnostics of eye diseases

The development and the improvement of new imaging methods are current trends in ophthalmology. The literature review is devoted to the use of standardized A-echography in the diagnostics of ocular pathology. The history of the development of this method, the basic principles of obtaining A-sonograms, the features of the qualitative and quantitative assessments of pathological changes in the structures of the eye based on echographic data are presented. Standardized A-echography is most widely used in the diagnostics of vitreoretinal pathology, intraocular mass (choroidal melanoma, choroidal hemangioma, non-tumor formations) and assessment of orbital structures (optic nerve, extraocular muscles, orbital tumors).

Better data for budgetary surveillance: EU law on statistics as key to unlocking the potential of public sector accounting

The quality of the data available for monitoring budgetary discipline of the Member States has been a hot topic within the European Union (EU) institutions and in the literature ever since the beginning of the economic crisis in 2008. The COVID-19 pandemic has shown the inadequacy, not only of the data, but also of the policy instruments available for coordinating efforts and decision-making. In this paper, we attempt to unlock the potential of public sector accounting (PSA) for contributing to the improvement of EU surveillance mechanisms. We look beyond the idea of standardised accounting rules for the entire EU public sector (European Public Sector Accounting Standards) into a less controversial area of EU competence, and we explore the conditions for introducing reporting obligations based on PSA data as part of EU law on statistics. Points for practitioners The current succession of crises might create momentum for a change in EU fiscal policy-making. New instruments for the monitoring of the budgetary situation in the Member States could become necessary. The EU institutions cannot impose the European Public Sector Accounting Standards. However, a new standardised reporting instrument could become binding EU law if it would come in the shape of a statistical methodology. Basic principles of EU law guarantee that any new statistical reporting obligations are limited to what is necessary, proportionate and cost-effective.

Guidelines for anti‐inflammatory assays in RAW264.7 cells

AbstractIn recent years, research on various bioactive compounds with anti‐inflammation effects has become increasingly active. Evaluating anti‐inflammatory activity is well established in cell models represented by RAW264.7 cells. Methylthiazolyldiphenyl‐tetrazolium bromide (MTT) and cell counting kit‐8 (CCK‐8) assays are commonly used to detect the effects of drugs or deleterious substances on cytotoxicity, cell viability, and survival. RAW264.7 cells release nitric oxide (NO) when exposed to inflammatory stimuli, so their anti‐inflammatory capacity can be assessed by detecting the NO content in cell culture supernatants, and the Griess method is one of the commonly used methods for determining NO concentration. RAW264.7 cells release a variety of inflammation‐associated cytokines, such as the TNF‐α and IL‐1β, with ELISA being the standard method to detect the release of these inflammatory factors. For mRNA expression levels of genes associated with inflammation, real‐time PCR (Quantitative Real‐time PCR, qPCR) is commonly used. In addition, the well‐known western blotting assay can be used to detect the expression levels of proteins associated with inflammatory signaling pathways. In this guideline, we discuss the basic principles and practices of the above experimental methods, which provide a valuable reference for the anti‐inflammatory experimental methods in cellular models such as the RAW264.7 cells.

The Cleavage of RNA Model Compounds: The Interplay Between the Nucleophile and the Leaving Group

ABSTRACTHydrolytic reactions of phosphodiester bonds of RNA have been extensively studied over several decades. Information on the factors that affect the reactivity of phosphodiester bonds in biomolecules is important for the development of new nucleic acid‐related therapeutics. Furthermore, the development of artificial nucleases requires efficient catalytic entities, and rational design of catalysts requires detailed understanding of the catalytic mechanisms. In the present article, we concentrate on the interplay between the nucleophile and leaving group both in the absence and in the presence of metal ion catalysts. The effect of the nucleophile on the reactivity of RNA model compounds has been studied with 2‐hydroxypropyl and uridine 3′‐aryl phosphates as well as with bis‐(p‐nitrophenyl)phosphate as substrates. pH‐rate profiles for three different 2‐hydroxypropyl arylphosphates were compared with those obtained with a uridine 3′‐alkyl and aryl phosphates. The observations are discussed in terms of the relative goodness/poorness of the nucleophile and the leaving group. Metal complex‐dependent reactions were studied in the presence of well‐known and robust CuTerPy and CuBiPy complexes. The results show that CuTerPy and CuBiPy favour different types of phosphodiesters as substrates, depending on the properties of the nucleophile and leaving group, and suggest that the complexes utilize different catalysis mechanisms, which may depend also on the structure of the substrate. The results obtained further the understanding on the basic principles of metal complex‐promoted cleavage of RNA and model compounds, help to assess the relevance of data obtained with model compounds and support the design of artificial enzymes for phosphodiester cleavage.

International legal mechanisms of liability for nuclear damage

Based on the analysis of accidents in the nuclear sphere, many states have come to the conclusion of the need to develop international legal principles for the settlement of disputes related to accidents and the formation of a regime of responsibility for damage caused to the life and health of people and the environment. The unification of the efforts of many states to develop joint approaches to ensure the safe development of atomic energy allowed the creation of a complex international legal regime – “international nuclear law”. The aim of the work is determination of the international legal bases of responsibility for causing nuclear damage. The methodological basis of the study. The following methods of cognition were used in the research process: analysis and synthesis, generalization, dialectical, system-structural methods, formal-legal, legal-technical method. Results. Various international organizations play an important role in the formation of nuclear law: the IAEA, the Atomic Energy Agency of the Organization for Economic Co-operation and Development (NEA OECD), WNA and others. The documents issued by the IAEA serve as guidelines for the development and approval of laws and other regulatory acts related to the safe use of atomic energy in the countries of the world. Conventions on liability for nuclear damage were drafted in such a way that most of their provisions (especially the basic principles) were self-executing. Therefore, in principle, each participating state has the right to independently decide, on the basis of its constitutional or legal system, which approach it will use to bring its legislation in accordance with this or that convention: direct application of the provisions of the convention or preparation based on the text of the convention of the national law on nuclear liability. Conclusions. Currently, in the issue of liability for nuclear damage, countries can be divided into two groups: one group – those that have adopted a special regime in the field of nuclear liability either by joining international conventions or by adopting national legislation; another group – countries that do not have such a special regime.

Triboelectric Nanogenerator for Self-Powered Gas Sensing.

With the continuous acceleration of industrialization, gas sensors are evolving to become portable, wearable and environmentally friendly. However, traditional gas sensors rely on external power supply, which severely limits their applications in various industries. As an innovative and environmentally adaptable power generation technology, triboelectric nanogenerators (TENGs) can be integrated with gas sensors to leverage the benefits of both technologies for efficient and environmentally friendly self-powered gas sensing. This paper delves into the basic principles and current research frontiers of the TENG-based self-powered gas sensor, focusing particularly on innovative applications in environmental safety monitoring, healthcare, as well as emerging fields such as food safety assurance and smart agriculture. It emphasizes the significant advantages of TENG-based self-powered gas sensor systems in promoting environmental sustainability, achieving efficient sensing at room temperature, and driving technological innovations in wearable devices. It also objectively analyzes the technical challenges, including issues related to performance enhancement, theoretical refinement, and application expansion, and provides targeted strategies and future research directions aimed at paving the way for continuous progress and widespread applications in the field of self-powered gas sensors.

Civil Service Culture in Public Administrative Agencies in the Context of Digital Transformation in Vietnam

In the context of digital transformation, this study looks at how civil service culture is used in Vietnamese public administrative organizations. Three main areas are covered in this research: (1) the context of the digital transformation and the requirements it has for creating and implementing a civil service culture; (2) the state of civil service culture in public administrative agencies at the moment in the context of the digital transformation; and (3) ways to improve the efficacy of civil service culture implementation in this changing environment. This study emphasizes how crucial civil service culture is as a window into administrative advancement and a code of conduct for employees. It makes the case that fundamental principles like efficacy, professionalism, honesty, and transparency are essential in creating a contemporary, accountable, and efficient administration. The research aims to contribute to the ongoing discourse on public administration reform in Vietnam, offering insights into the challenges and opportunities presented by digital transformation in the public sector.

Literature Review on Thermodynamic and Kinetic Limitations of Thermal Decomposition of Methane

The state of the art in methane pyrolysis does not yet provide a definitive answer as to whether the concept of an elementary reaction is universally applicable to the apparently simple process of methane dissociation. Similarly, the literature currently lacks a comprehensive and unambiguous description of the methane pyrolysis process and, in particular, a single model that would well represent its course at both the micro and macro scales. Given the wide range of conditions under which this reaction can occur—whether thermal or thermo-catalytic, in solid or fluidized bed reactors—it is crucial to evaluate the usefulness of different kinetic models and their compatibility with basic thermodynamic principles and design assumptions. To address these research gaps, the authors analysed the thermodynamic and kinetic dependencies involved in the thermal decomposition of methane, using the synthesis of methane from its elemental components and its reversibility as a basis for exploring suitable kinetic models. Using experimental data available in the literature, a wide range of kinetic models have been analysed to determine how they all relate to the reaction rate constant. It was found that regardless of whether the process is catalytic or purely thermal, for temperatures above 900 °C the reversibility of the reaction has a negligible effect on the hydrogen yield. This work shows how the determined kinetic parameters are consistent with the Kinetic Compensation Effect (KCE) and, by incorporating elements of Transition State Theory (TST), the possibility of the existence of Entropy–Enthalpy Compensation (EEC). The indicated correspondence between KCE and EEC is strengthened by the calculated average activation entropy at isokinetic temperature Based on these results, the authors also show that changes in the activation energy can only serve as an estimate of the optimal process conditions, since the isoconversion temperature () is shown to depend not only on thermodynamic principles but also on the way the reaction is carried out, with temperature (T) and pressure (P) locally compensating each other.

Analysis of The Architecture and Decoration of Isfahan Masjid-E Jameh in Syntactic Dimension

In this research, the general architectural features and decorations of the Friday Mosque of İsfahan, Iran, which belongs to the 11th century Great Seljuk State period, one of the most important works of Islamic architecture, are examined. This mosque, which is also called Atiq Mosque, Masjid-e Jameh and Great Mosque today, is among the most important structures that have witnessed hundreds of years of history. This study on the expressibility of the semantic dimension of the structure in the syntactic dimension is important in terms of its contribution to the literature. For this purpose, information about the Great Seljuk mosque architecture and the historical development process of Friday Mosque in terms of architecture is given and the subject and purpose of the researches on this mosque are stated. Then, the method to be used in expressing the architectural structure and decorations in the syntactic dimension is explained. In order to obtain the data about the mosque, on-site visual-observation and examination technique and photography technique were used. Basic design principles were used in the analysis of the data. As a result, the architectural features and ornamental motifs used in this mosque, which is an important mosque of the Great Seljuk period, have been revealed with this method. The findings obtained about the structure and ornaments can be used in religious buildings as well as other architectural structures, ornaments, clothing, furniture and decoration

Use of an Ecological Compensation Model in Water Resource Development: A Case Study from Shaanxi Province, China

This study aims to analyze the current situation of water resource management in Shaanxi Province, study the basic principles of ecological compensation, evaluate the impact of water conservation projects on the ecological environment by establishing a model, and propose a sustainable water resource management model. Hanzhong City has certain typicality and representativeness within Shaanxi Province, and the problems it faces in water resource management and ecological environment may represent the entire province or similar regions. At the same time, Hanzhong City has rich data and research foundations. Therefore, by conducting a detailed analysis of the current water resource status in the Hanzhong City area of Shaanxi Province, the problems in current water resource management are revealed, and the basic principles of ecological compensation are intensely studied. The original ecological compensation plan in Shaanxi Province has been summarized. Guided by the concept of sustainable development, an ecological compensation model is established using algorithms, and the model is applied to sustainable water resource management. Establish a model for water conservation and water resource management through data collection, preprocessing, and cleaning, and apply it to practical cases in Hanzhong City. Through simulation and analysis of Hanzhong City, the new water resource management model effectively mitigates the adverse effects of water conservation projects on the ecological environment while improving water resource utilization efficiency. The changes in various environmental parameters indicate that the new plan has improved the ecological environment. Through the application of the model, the ecological compensation plan formulated has achieved sustainable protection of the ecological environment while promoting economic development. This study proposes a sustainable water resource management model through a comprehensive study of water resource management and ecological compensation in Shaanxi Province and verifies it in practical cases, demonstrating that the model has not only good applicability but also has significant effects in promoting economic growth and ecological environment protection.

Rotaphone-D, A New Model of Six-Degree-of-Freedom Seismic Sensor: Description and Performance

Abstract A new model of the Rotaphone-D short-period seismic sensor with six degrees of freedom is introduced. The basis of the instrument is horizontal and vertical geophones in a special paired arrangement. The instrument is designed for simultaneous and collocated measurements of rotational and translational components of ground motion. The basic principle of measurement is briefly described. Careful calibration is necessary for this type of measurement, which has two parts: a preliminary calibration based on laboratory measurements of the characteristics of the individual geophones, and a subsequent in situ calibration, which takes into account the actual physical conditions during field measurements and is performed during the processing of the measured data. The effect of the calibration is demonstrated by specific laboratory tests. The laboratory tests have confirmed the correct functioning of the instrument. The frequency range of Rotaphone-D is from 2 to 80 Hz and is therefore optimal for monitoring local seismicity. The instrument was subsequently used in field measurements during two several-month measurement campaigns in California, United States. Examples of six-component records from two sites—The Geysers and Long Valley Caldera—are presented and briefly interpreted from a seismological perspective. Basic instrument parameters are given. The instrument is lightweight, portable, easy to install, and offers several interesting applications, which are briefly discussed. Six-component measurements (translational and rotational) have become a powerful tool, especially in volcanic seismology and in monitoring induced seismicity.

Academic success centers at us universities as an effective factor in ensuring the quality of higher education

The aim of the work is theoretical analysis of the peculiarities of the activity of the Academic Success Centers in the U.S. universities. The methodological basis of the study are official websites of Academic Success Centers, scientific articles by Ukrainian and American researches and analytical reports. Results. The article is devoted to a review of the activities of Academic Success Centers in U.S. universities. It is found that there is no single definition of «Academic Success Center» due to the variety of services offered. It is determined that Academic Success Center is a structural institution that provides academic and social-psychological support to students, helps to reveal their potential and prepare them for a career. The author emphasizes the technologies of support for students of higher education institutions. The main support technologies are tutoring, mentoring, academic coaching and Supplemental Instruction. It is proven that these technologies contribute to the improvement of the academic achievements of students and increase students’ retention rate of the educational institution. Special emphasis is placed on the interaction of the Center with freshmen, who most often face a number of problems in a new academic environment for them. The Centers provide academic advising for students on choosing courses. Academic advising lasts from admission to graduation at the university. Moreover, Academic Success Centers provide an opportunity not only to learn, but also to teach. Seniors have the opportunity to become tutors, mentors and academic coaches. A special feature of Centers is career guidance work with applicants. Universities organize meetings of future first-year students with students, graduates, teachers and administration of the institution to provide complete information about admission, studies and further employment prospects. Conclusions. The conducted study proved the need for further thorough research of the basic principles and areas of activity of centers of academic success in US universities in order to introduce better experience into educational practice.

Urologic Oncology: Bladder, Penis, and Urethral Cancer, and Basic Principles of Oncology.

Urologic Oncology: Bladder, Penis, and Urethral Cancer, and Basic Principles of Oncology.

Plasma-based base flow modification on swept-wing boundary layers: dependence on flow parameters

This work examines the control of cross-flow instabilities (CFIs) and laminar–turbulent transition on a swept wing, through the plasma-based base flow modification (BFM) technique. The effect of experimentally derived plasma body forces on the steady boundary layer base flow is explored through numerical simulations. Linear stability theory is subsequently used to predict the net BFM effect on CFIs. Based on these preliminary predictions, experiments are conducted in a low-turbulence wind tunnel where a spanwise-invariant plasma actuator is installed near the wing leading edge and operated at constant input voltage and frequency. Various flow parameters governing the plasma-based BFM technique are investigated, namely the Reynolds number, angle of attack and wavelength of excited stationary CFI modes. Stationary and travelling CFIs are quantified by planar particle image velocimetry while the transition topology and location are recorded by infrared thermography. The results confirm the stabilising effect of BFM on the swept-wing boundary layer. However, the plasma-based BFM is found to render the boundary layer more susceptible to travelling CFIs. In the presence of both net BFM effect and intrinsic plasma unsteady perturbations, the plasma-based BFM technique achieves transition delay with specific combinations of Reynolds number, angle of attack and wavelength of excited stationary CFI modes. The present findings provide insights into the fundamental principles of operating plasma actuators within the context of BFM control.

A Comprehensive Review of Electromyography in Rehabilitation: Detecting Interrupted Wrist and Hand Movements with a Robotic Arm Approach

Electromyography (EMG) is a diagnostic technique that measures the electrical activity generated by skeletal muscles. Utilizing electrodes placed either on the skin (surface EMG) or inserted directly into the muscle(intramuscular EMG), it detects electrical signals produced during muscle contractions. EMG is widely employed in clinical and research settings to assess muscle function, diagnose neuromuscular disorders,and guide rehabilitation therapy. Over the years, EMG has evolved from a basic measurement tool into an essential technology within clinical and research environments, propelled by advances in recording techniques and digital innovations. The integration of wearable technology and artificial intelligence (AI) has significantly expanded its applications, particularly in rehabilitation and sports science. By capturing muscle electrical activity through surface or intramuscular electrodes, EMG benefits from enhanced signal processing that improves accuracy and data analysis. Despite challenges such as signal interference and the complexities of movement patterns—especially in wrist and hand rehabilitation—EMG combined with robotic systems offers real-time feedback for precise and personalized therapy. However, obstacles like cost, complexity, and variability among patients still remain. Future advancements aim to make EMG more accessible and to integrate AI for tailored rehabilitation strategies, alongside improvements in sensors and wireless communication to enhance reliability and performance. This review explores various facets of EMG,from its fundamental principles to its application in detecting disrupted wrist and hand movements through robotic approaches. It provides a comprehensive analysis of EMG’s historical and technological evolution, recent innovations like AI and wearable devices, and its extensive applications in rehabilitation and sports science. Detailed case studies illustrate its effectiveness in areas such as stroke recovery and spinal cord injury rehabilitation. Additionally, the review addresses challenges like technical limitations and patient variability while emphasizing the integration of EMG with robotic systems for personalized therapy. It also discusses the significance of real-time feedback, future enhancements in AI and sensor technology, and the pressing need for more affordable, user-friendly solutions to improve therapeutic outcomes.

Mastering the Game: How Level Structure and Game Elements Shape Competency Acquisition

Understanding the dynamics of level structure and game elements in digital educational games is paramount to fostering competency acquisition. How levels are organized within a game, along with the use of various game elements, has a significant impact on the learning outcomes and skill development of individuals. Through the strategic design and implementation of these components, educational games can effectively engage learners and facilitate the acquisition of competencies in multiple domains. In addition to structure, the integration of gamification elements can have a profound impact on learner engagement and sustainable skill acquisition. Therefore, a key element for the success of a serious game is to create appropriate personalization and a balanced relationship between learning and gaming experience. As a result, a mini-game called "Basketball Physics Challenge" has been designed to be integrated into an intelligent, adaptive physical learning game centered around force and motion as part of an ongoing research project. By playing the game "Basketball Physics Challenge", players will apply their understanding of basic physics principles in a realistic, interactive, and virtual setting. An experimental design was used to test the mini-game, in which a gamified and a non-gamified version were used and compared. 20 participants completed the experiment, and their learning progress was meticulously tracked. Using competency-based knowledge space theory, the mini-game facilitated in-game competency assessment, enabled monitoring of learning progress, tailored learning experiences, and provided individualized formative feedback. The pilot was used to develop and implement a competency model that will be the subject of future in-depth studies. The results indicated that the gamified version of the game led to slightly higher engagement and performance levels compared to the non-gamified version, although the difference in learning outcomes between the two versions was not statistically significant. The analysis also showed that an optimal number of levels and a balanced integration of game elements are crucial for maintaining engagement without causing cognitive overload. Furthermore, the order in which the game versions were presented affected player performance, with initial exposure to gamification leading to better outcomes. These findings provide valuable information for the design of educational games and their effectiveness in skill acquisition. This research supports the development of powerful educational technologies that enhance learning through a coherent level structure and meaningful use of game elements that effectively promote learner engagement.

A Survey on Federated Unlearning: Challenges, Methods, and Future Directions

In recent years, the notion of “the right to be forgotten” (RTBF) has become a crucial aspect of data privacy for digital trust and AI safety, requiring the provision of mechanisms that support the removal of personal data of individuals upon their requests. Consequently, machine unlearning (MU) has gained considerable attention which allows an ML model to selectively eliminate identifiable information. Evolving from MU, federated unlearning (FU) has emerged to confront the challenge of data erasure within federated learning (FL) settings, which empowers the FL model to unlearn an FL client or identifiable information pertaining to the client. Nevertheless, the distinctive attributes of federated learning introduce specific challenges for FU techniques. These challenges necessitate a tailored design when developing FU algorithms. While various concepts and numerous federated unlearning schemes exist in this field, the unified workflow and tailored design of FU are not yet well understood. Therefore, this comprehensive survey delves into the techniques and methodologies in FU providing an overview of fundamental concepts and principles, evaluating existing federated unlearning algorithms, and reviewing optimizations tailored to federated learning. Additionally, it discusses practical applications and assesses their limitations. Finally, it outlines promising directions for future research.

When confidence reveals more than recognition performance does: The case of context load.

Context in which events are embedded is often hypothesized to serve as an independent cue for retrieval. This means that any effects of context need to obey two basic principles of cue-dependent memory: Memory retrieval should be augmented when, first, encoding context is reinstated and, second, this context uniquely specifies individual items stored in memory. Both of these regularities are well supported for recall tests, but they remain contentious in recognition tests. Here, in three experiments, we assess whether unique and nonunique contexts affect memory processes when reinstated during recognition. However, rather than focusing on measures of recognition performance, we looked at confidence judgments collected during recognition that should be particularly sensitive to recollective effects resulting from context cuing. Experiments 1 and 2, using old/new and forced-choice recognition tests, respectively, documented positive effects of context reinstatement on confidence in correct recognition identifications, but only for contexts uniquely associated with individual items. These effects emerged even when there were no reliable context effects in recognition performance measures. Experiment 3 showed the same effect of context reinstatement, moderated by context load, when spontaneous recognition of a previous study episode occurred during restudy. These results demonstrate the role of context as an independent retrieval cue both in deliberate and spontaneous recognition. (PsycInfo Database Record (c) 2024 APA, all rights reserved).