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HUMAN ACTIVITY RECOGNITION AND OPTIMIZATION OF BIPED EXOSKELETES THROUGH ARTIFICIAL INTELLIGENCE: AN INTEGRATED APPROACH
Full text linkThis paper explores the integration of inertial sensor-based human activity recognition (HAR) with the optimization of bipedal exoskeletons using artificial intelligence (AI) techniques. The motivation for the study stems from the need to improve the adaptability and energy efficiency of exoskeletons for practical applications. The specific hypothesis is that combining HAR with reinforcement learning (RL) can lead to personalized and efficient control strategies. The aim of the research is to develop a robust HAR system for classifying activities such as normal walking, stair climbing/climbing and sitting/standing, and to optimize exoskeleton control through AI-based simulations. The methodology involves preprocessing sensor data (accelerometer and gyroscope) by segmentation and feature extraction, followed by supervised classification with Support Vector Machines (SVM) and Random Forest, and RL optimization in simulated environments such as Webots. Preliminary results indicate an HAR accuracy of 92% and a 15% reduction in metabolic cost by RL, improving stability and user comfort. This innovative approach contributes to exoskeleton design by reducing manual adjustments, with potential applications in rehabilitation and physical augmentation
GENERATION AND CONTROL OF CHAOTIC BEHAVIOUR OF PHOTONS AND PHONONS IN BIOLOGICAL MEDIA
Full text linkIt was reported the results on the numerical investigations of the dynamical behavior of photons and phonons emitted by a biological medium under the influence of millimeter or terahertz radiation. In particular it was investigated the influence of external modulation pump parameters on photons and phonons dynamics. It was found that the system displays, under certain conditions, continues waves, periodic and chaotic behaviors. A quasiperiodic route to chaos is found. The influence of some parameters on the system behavior is investigated. Finally, very good conditions for large chaotic behavior are identified
SECURING MOLDOVAN SMALL AND MEDIUM-SIZED BUSINESSES: STRATEGIES BASED ON IT INFRASTRUCTURE DOMAINS
Full text linkThe digitization of small and medium-sized enterprises (SMEs) has accelerated in recent years, increasing their reliance on information systems to support core business operations. ENISA’s 2021 report showed an important growth in SME dependence on IT, while the World Economic Forum ranked cybersecurity failure among the top five global risks. Although digital transformation brings competitive advantages, it also exposes SMEs to cyber threats. A comparative analysis of scientific studies from the UK, Australia, the EU, Malaysia, and the USA identified social engineering, Denial of Service (DoS) / Distributed Denial of Service (DDoS), and Man-in-the-Middle (MitM) attacks as the most frequent threats. This article analyzes the main barriers preventing SMEs from implementing information security frameworks and identifies the lack of national-level regulations in the Republic of Moldova. Based on a structured model developed by the authors, the paper proposes tailored recommendations for improving information system security in Moldovan micro-enterprises. The findings emphasize the need for contextualized, cybersecurity solutions and public policy support targeting risk management and awareness
SMART JEWELRY DESIGN, AESTHETICS AND INNOVATION IN THE DIGITAL AGE
Full text linkThis research analyzes the integration of smart jewelry, which combines fashion with technology, meeting the functional and aesthetic requirements of the 21st century. These advanced accessories, equipped with features such as health monitoring and Bluetooth/NFC connectivity, require a multidisciplinary approach in the design process. The study emphasizes the balance between aesthetic appeal and utility, highlighting the use of recyclable materials and classifying jewelry into four distinct categories, each with specific advantages and challenges. It also investigates the impact of emerging technologies on jewelry design and current trends, demonstrating how these innovations are transforming the accessories industry. Relevant examples from renowned jewelers and companies are presented to illustrate sophisticated designs and wireless interactions. Additionally, innovations such as the StreetSmart app and the Project BLAID device highlight their contribution to the mobility of individuals with visual impairments. In conclusion, smart jewelry represents a significant expression of contemporary trends in fashion and technology, offering new opportunities for IoT connectivity and design flexibility
PROMOTING ARCHITECTURAL HERITAGE THROUGH MUSEUM EDUCATION IN ARCHITECTURE AND DESIGN TRAINING
Full text linkThe paper represents a theoretical-practical study that highlights the role and necessity of museum education in the initial training of architecture and design students from the perspective of promoting national architectural heritage. The article presents basic concepts, as well as some researchers' views on architectural heritage and museum education for architecture and design students in formal and non-formal contexts, which can be integrated in various educational levels, relating to the five general contents of education. Likewise, concrete educational actions involving students in researching, restoring, valorizing, and promoting national architectural heritage are described through the example reflected in the Restoration Concept Project of Balioz Manor. This project implies an in-depth investigation of the issue and includes a set of scientific research methods (documentation, analysis of scientific sources, Strengths, Weaknesses, Opportunities, Threats (SWOT analysis) of urban areas, SWOT analysis of architectural ensembles, photography, surveys, case studies, comparison, and interpretation of results) that led to the achievement of pre-established objectives. In conclusion, focusing on students in the context of the initial training of architecture and design students by involving them in projects for revitalization, renovation, conservation, etc., of architectural heritage contributes to enhancing the performance of future specialists in their professional activities
SECURITY FACTORS AND HOUSING NEEDS MANAGEMENT IN DEVELOPING COMMUNITIES IN OYO STATE, NIGERIA
Full text linkThis study explores Nigeria's housing trends, focusing on individuals' shelter needs and management. This study finds it interesting that despite widespread insecurity, people were residing in partially constructed buildings in relatively new neighborhoods. This therefore reflects poverty and inadequacies in housing policy, as it falls below the World Health Organization's standard for healthful living. This study therefore interrogates the life among these people and the emerging challenges being experienced in the areas. Security and associated matters as well as respondents’ coping mechanisms were explored. The study utilized a mixed-methods approach, incorporating quantitative surveys and qualitative interviews, and based its arguments on Berger and Luckmann's theory of the Social Construction of Reality. The study revealed that inflation and rising house rents led respondents to opt for partially completed houses due to economic insolvency. In anticipation of security challenges, they moved in without valuable property to curb such trends and kept a low social profile to prevent undue attention to the bad elements. The commonly identified challenges experienced included health matters, the absence of potable water, and occasional fear of the antics of the men of the underworld. This position informs the recommendations for healthy and sustainable development in this work
THE ROLE OF SOCIAL WORKERS IN FOSTERING POSITIVE PSYCHOLOGICAL OUTCOMES AMONG THE WOMEN INVOLVED IN CAESAREAN CHILDBIRTH
Full text linkGlobally, Caesarean section (CS) is one of the most performed surgical operations in obstetrics, and the numbers are on the increase. As the number of caesarean births has risen, so too have rates of hysterectomy, blood transfusions, adhesions, and surgical damages. This study therefore explored the role of social workers in fostering positive psychological outcomes of women involved in caesarean childbirth in Ilorin metropolis. The study employed Health Belief Model to explain utilization of the caesarean services and its determinants. The population of the study comprised social workers in Ilorin metropolis. A descriptive method of survey was used for this research, and purposive sampling technique was adopted to select 160 social workers in Ilorin metropolis. A structured questionnaire was adopted to extract information from the respondents. Summary statistic such as count and percentage were used and, inferential statistics of multiple regression to test the hypotheses. The research revealed that; counselling service; childbirth education; discharge planner; and assessing/prevention of a traumatic birth are the professional measures employed by the social workers for positive psychological outcomes among the women involved in caesarean childbirth in Ilorin Metropolis, Kwara State, Nigeria. This study thus justified the significance roles of the social workers in rehabilitation processes for women involved in caesarean childbirth
GOOD GOVERNANCE CHALLENGES IN THE SOUTH AFRICAN PUBLIC SERVICE
Full text linkThe article examines the various causes of ineffective governance in South African public service: the lack of transparency, accountability, effectiveness and efficiency, ethical norms, and others. The main rationale of the study is that even though the country has anticorruption legislative and institutional frameworks, implementing good governance principles remains a challenge. The study used a qualitative approach to compile information. Literature and document reviews were considered to gather relevant information that was then assessed through conceptual and document analysis. The findings show that South Africa lacks adequate resources and technological skills to establish transparency, the lack of digitalised platforms leads to poor citizen participation in the governance processes, and political will is lacking to enhance openness in government structures, processes, and decisions, to name a few. The findings suggest that maintaining ethical standards in public administration necessitates that public officials demonstrate openness in fulfilling public responsibilities. Transparency constitutes a fundamental principle for the success of any public organisation. The study offers policy recommendations for improvement
POPULAR WEAR A SOURCE OF CREATION IN THE DEVELOPMENT OF MODERN CLOTHING FORMS
Full text linkThe creative process or product design is impulsive, unpredictable and influenced by a series of factors. Factors that due to the influence of society are shaped by: the action of the characters who constituted the artistic message for generations formed by the folk costume; the capacity for acceptance by social strata of novelties in design, politics, technology, etc.; the capacity for coagulation of an artistic character guided and promoted by society with the imposition of product design demand at the current time. The popular shirt with rolled sleeves as a source is analyzed by: shape with original characteristics, embroidery, cutting method, assembly, outline of the details. The popular product remains that link that contributes to the formation of new ideas in industrial design, textile design, typographic design, etc. For the study or used three basic types of rolled sleeve shirt and ten modeled shirts which were simulated using CLO 3D software. The article will present the constructive parameters of the rolled sleeve shape, a model of a shirt, blouse with a rolled sleeve adapted to the requirements of contemporary clothing, as well as possibility of assembling the rolled sleeve with pave
PRODUCTIVITATEA HIBRIZILOR DE PORUMB ȘI RITMUL PIERDERII APEI DIN BOABE LA RECOLTARE ÎN CONDIȚIILE CLIMATICE ALE ZONEI DE NORD A REPUBLICII MOLDOVA
Full text linkThe article presents a synthesis of investigations conducted on 10 corn hybrids from the early and medium maturity groups, tested under ecological conditions in the northern part of the Republic of Moldova in 2023 at the Visoca Testing Station in Soroca District. According to tests carried, the productivity of the corn hybrids varies on average between 8,17 and 8,61 t/ha, depending on the maturity group. This variation underscores the influence of ecological factors on the development of the hybrids. Corn hybrids from the medium maturity group demonstrate a productivity that is 0,44 t/ha higher than that of the early maturity group. The year 2023 provided favorable climatic conditions for assessing the water loss capacity of the kernels, from physiological maturity to harvest. The maximum intensity of moisture loss from the kernels was observed in the stage IV, where the average percentage of moisture lost per day was 0,45% for hybrids from the early maturity group and 0,48% for those from the medium maturity group. Thus, hybrids with different capacities for moisture loss from the kernels were obtained. The tests highlighted corn hybrids with varying rates of moisture loss from the kernels even after harvest, particularly emphasizing those from the medium maturity group.
Articolul prezintă o sinteză a investigațiilor efectuate asupra a 10 hibrizi de porumb din grupa de maturitate timpurie și mijlocie, testate în condiții ecologice în nordul Republicii Moldova în 2023, la Stațiunea de testare Visoca, raionul Soroca. Conform testărilor realizate, productivitatea hibrizilor de porumb variază în medie, între 8,17 și 8,61 t/ha, în funcție de grupa de maturitate. Această variație subliniază influența factorilor ecologici asupra dezvoltării hibrizilor. Hibrizii de porumb din grupa de maturitate mijlocie demonstrează o productivitate cu 0,44 t/ha mai mare decât hibrizii din grupa de maturitate timpurie. Anul 2023 a oferit condiții climatice favorabile pentru determinarea capacității de pierdere a apei din boabe, de la maturitatea fiziologică până la recoltare. Intensitatea maximă a cedării umidității din boabe a fost observată în etapa a IV-a, unde procentul de umiditate pierdut pe zi a fost, în medie, de 0,45% pentru hibrizii din grupa de maturitate timpurie și de 0,48% pentru cei din grupa de maturitate mijlocie. Astfel, s-au obținut hibrizi cu capacități diferite de pierdere a apei din boabe. Testările efectuate au evidențiat hibrizi de porumb cu ritmuri diferite de cedare a umidității din boabe și după recoltă, în mod special s-au evidențiat hibrizii din grupa de maturitate mijlocie