bluuebunny/crossref_metadata_2025 huggingface dataset:
Human Action Recognition: A Taxonomy-Based Survey, Updates, and Opportunities
Authors: Morshed Md Golam , Sultana Tangina , Alam Aftab , Lee Young-Koo
Published: February 2023

Human action recognition systems use data collected from a wide range of sensors to accurately identify and interpret human actions. One of the most challenging issues for computer vision is the automatic and precise identification of human activities. A significant increase in feature learning-based representations for action recognition has emerged in recent years, due to the widespread use of deep learning-based features. This study presents an in-depth analysis of human activity recognition that investigates recent developments in computer vision. Augmented reality, human–computer interaction, cybersecurity, home monitoring, and surveillance cameras are all examples of computer vision applications that often go in conjunction with human action detection. We give a taxonomy-based, rigorous study of human activity recognition techniques, discussing the best ways to acquire human action features, derived using RGB and depth data, as well as the latest research on deep learning and hand-crafted techniques. We also explain a generic architecture to recognize human actions in the real world and its current prominent research topic. At long last, we are able to offer some study analysis concepts and proposals for academics. In-depth researchers of human action recognition will find this review an effective tool.
AOEHO: A New Hybrid Data Replication Method in Fog Computing for IoT Application
Authors: Mohamed Ahmed awad , Abualigah Laith , Alburaikan Alhanouf , Khalifa Hamiden Abd El-Wahed
Published: February 2023

Recently, the concept of the internet of things and its services has emerged with cloud computing. Cloud computing is a modern technology for dealing with big data to perform specified operations. The cloud addresses the problem of selecting and placing iterations across nodes in fog computing. Previous studies focused on original swarm intelligent and mathematical models; thus, we proposed a novel hybrid method based on two modern metaheuristic algorithms. This paper combined the Aquila Optimizer (AO) algorithm with the elephant herding optimization (EHO) for solving dynamic data replication problems in the fog computing environment. In the proposed method, we present a set of objectives that determine data transmission paths, choose the least cost path, reduce network bottlenecks, bandwidth, balance, and speed data transfer rates between nodes in cloud computing. A hybrid method, AOEHO, addresses the optimal and least expensive path, determines the best replication via cloud computing, and determines optimal nodes to select and place data replication near users. Moreover, we developed a multi-objective optimization based on the proposed AOEHO to decrease the bandwidth and enhance load balancing and cloud throughput. The proposed method is evaluated based on data replication using seven criteria. These criteria are data replication access, distance, costs, availability, SBER, popularity, and the Floyd algorithm. The experimental results show the superiority of the proposed AOEHO strategy performance over other algorithms, such as bandwidth, distance, load balancing, data transmission, and least cost path.
On the Evaluation of Engagement in Immersive Applications When Users Are on the Autism Spectrum
Authors: Tarantino Laura , Attanasio Margherita , Di Mascio Tania , De Gasperis Giovanni , Valenti Marco , Mazza Monica
Published: February 2023

New generation wearable devices allow for the development of interactive environments tailored for Virtual Reality (VR)– and Augmented Reality (AR)–based treatment of Autism Spectrum Disorders (ASD). Experts agree on their potential; however, there is lack of consensus on how to perform trials and the need arises for evaluation frameworks, methods, and techniques appropriate for the ASD population. In this paper, we report on a study conducted with high-functioning ASD people in the 21–23 age range, with the objectives of (1) evaluating the engagement of two headsets offering distinct immersive experiences, (2) reasoning on the interpretation of engagement factors in the case of ASD people, and (3) translating results into general guidelines for the development of VR/AR-based ASD treatment. To this aim, we (1) designed two engagement evaluation frameworks based on behavioral observation measures, (2) set up two packages of reference immersive scenarios, (3) defined the association between metrics and scenarios, and (4) administered the scenarios in distinct sessions for the investigated headsets. Results show that the immersive experiences are engaging and that the apparent lack of success of some evaluation factors can become potential advantages within the framework of VR/AR-based ASD treatment design.
Influence of Chemical Pretreatment on the Adsorption of N2 and O2 in Ca-Clinoptilolite
Authors: Hernández Miguel Ángel , Hernández Gabriela I. , Portillo Roberto Ignacio , Velasco Ma de los Ángeles , Santamaría-Juárez Juana Deisy , Rubio Efraín , Petranovskii Vitalii
Published: February 2023

N2 and O2 adsorption isotherms in chemically modified clinoptilolite-Ca zeolites were experimentally estimated by inverse adsorption chromatography. Natural zeolites (CLINA) were chemically treated with HCl at different concentrations (H1-H4). The adsorption of N2 and O2 on these zeolites was studied in the temperature zone of 398–498 K using gas chromatography. This technique used a thermal-conductivity detector and He as carrier gas, at a rate of 30 mL min−1. The Langmuir and Henry equations were used to describe the experimental results of these gases’ adsorption. To evaluate the selectivity of the components of atmospheric air, the chemical activation of the zeolite clinoptilolite-Ca has been carried out. The results are attractive because of the ability to separate the gases these nanomaterials present under dynamic conditions. The structural modifications of the crystalline phases of the studied zeolites were carried out through X-ray diffraction, where the average crystal size was evaluated with the Scherrer equation, finding values of 25.86 nm for CLINA and 15.12 nm for H3 zeolites. The variation of their chemical composition was carried out by energy-dispersive EDS, while the adsorption of N2 carried out their texture properties at 77 K. The selectivity coefficients (α) were evaluated for these gases in pure form and in a mixture (atmospheric air), finding the highest values in zeolites H4 and H3. The interaction energies between these gases with the porous structures of the studied zeolites were evaluated from the evolution of the isosteric enthalpies of adsorption through the Clausius–Clapeyron equation.
Effects of Meteorological Conditions and Irrigation Levels during Different Growth Stages on Maize Yield in the Jing-Jin-Ji Region
Authors: Zou Zhixiao , Cheng Changxiu , Shen Shi
Published: February 2023

Maize is a major crop that is particularly sensitive to climate change. In addition, the extreme shortage of water resources threatens crop production. Thus, improving the effective utilization rate of water is an important problem to discuss. In this regard, we quantified the combined effects of meteorological conditions and irrigation levels during different growth stages on city-level maize yields in the Jing-Jin-Ji region from 1993 to 2019. The results show that the sowing period was affected by the minimum temperature, while the other growth stages were affected by the maximum temperature. At the ear stage of summer maize, when the effective irrigation rate reached the average level (52%), the inflection point of the total precipitation was 401.42 mm in the Jing-Jin-Ji region. When the total precipitation was higher than 401.42 mm, the summer maize yield decreased with the increasing total precipitation. Furthermore, the summer maize growth was significantly affected by drought at the seedling stage. At high effective irrigation rates and over long dry spells, as the mean daily temperature during dry spells increased, the maize yield easily increased. The increase in the effective irrigation rate can reverse the decrease in the summer maize yield. Moreover, the effective irrigation rate increased the maize yield with the increase rise in the temperature during longer dry spells, but the maize yield decreased with warmer temperatures during shorter dry spells. As such, our evaluation results will be useful for assessing food security and moving gradually toward achieving a water–energy–food nexus.
Analysis of the Impact of Industrial Structure Upgrading and Energy Structure Optimization on Carbon Emission Reduction
Authors: Fan Guoliang , Zhu Anni , Xu Hongxia
Published: February 2023

In China, there has been a significant increase in carbon emissions in the new era. Therefore, evaluating the influence of industrial structure upgrades and energy structure optimization on reducing carbon emissions is the objective of this research. Based on the provincial panel data of 30 provinces and cities across China from 1997 to 2019, this paper builds up a fixed-effect panel quantile STIRPAT model to investigate the differences in the impact of industrial structure on carbon emission intensity at different quantile levels from the provincial perspective, and as a way of causality test, the mediation effect model is adopted to empirically test the transmission path of “industrial structure upgrading—energy structure optimization—carbon emission reduction”. The research results show that: (1) Both industrial structure upgrades and energy structure optimization have significant inhibitory effects on carbon emissions, and there are regional heterogeneities. (2) The upgrading of industrial structure has a significant positive effect on optimizing energy structure. (3) The upgrading of industrial structure can not only directly restrain carbon emissions but also indirectly have a significant inhibitory effect on carbon emissions by promoting the optimization of energy structure. Based on the above conclusions, corresponding policy recommendations are proposed to provide suggestions for China to achieve the goal of carbon neutrality.
Adolescents as Ambassadors in Substance Abuse Awareness Programs: Interpersonal and Intrapersonal Effects
Authors: Nedungadi Prema , Menon Radhika , Gutjahr Georg , Raman Raghu
Published: February 2023

This study explores an adolescent ambassador program that promotes substance abuse awareness in rural villages, and studies its effects on self-esteem, peer influence, and family communication. This school-based intervention was part of a larger program that mentored adolescent youth as change agents to promote health and social awareness in rural communities in India, in alignment with UN Sustainable Development Goal 3 (good health and wellbeing). One hundred and forty-three ambassadors between 8 and 18 years of age, representing rural communities in 23 economically challenged villages across 11 states of India, participated in the study. Adolescents were mentored to implement substance abuse awareness programs among their peers and the village community. During the training, the ambassadors used a variety of didactic, creative, and technological modalities. Pre- and post-analyses assessed ambassadors’ self-esteem, personal substance use, perceptions of peer substance abuse, comfort with discussing substance abuse, and perceptions of social support. Ambassadors’ self-esteem increased significantly. In addition, positive changes related to the perception of parents’ and friends’ attention, as well as comfort in addressing substance abuse topics with others, were observed.
A Design Proposal for an Eco-Tunnel for Anurans Based on Behavioral Experiments and Species Characteristics
Authors: Seol Gu Ho , Kim Eun Bum , Kim Ye Eun , Kim Nam Choon , Kim Hyun
Published: February 2023

Infrastructure development has caused extensive habitat fragmentation, and increased traffic raises the number of wildlife roadkills. Wildlife crossing structures (WCSs) can prevent roadkills and protect wildlife. Amphibians commonly comprise the highest proportion of roadkills. Nevertheless, adequate WCSs suitable for amphibian crossing and migration are lacking. This study aimed to suggest a design proposal for a WCS for amphibians based on a behavioral experiment. First, we evaluated the home range, protection value, and roadkill trends of Bufo gargarizans, Bombina orientalis, and Rana uenoi. We selected six factors that can affect anuran migration preferences: noise level, tunnel width, light-shielding level, construction material, tunnel substrate, and tunnel shape. Each species selected a migration path, and mobility was confirmed in different structures. The animals’ preferences were evaluated by counting the number of migrating individuals in each migration experiment. Overall, the three species showed a preference for 60 dB of noise and a tunnel width of D700 (mm). Migration frequencies were higher at 35% light-shielding level and when the substrate was soil. PVC was the preferred construction material for tunnels, and mobility was the highest in circular tunnels. We proposed a design for WCSs that incorporated the preferences of these three target species.
Identification of SMEs in the Critical Factors of an IS Backup System Using a Three-Stage Advanced Hybrid MDM–AHP Model
Authors: Chen You-Shyang , Chou Jerome Chih-Lung , Lin Yu-Sheng , Hung Ying-Hsun , Chen Xuan-Han
Published: February 2023

Backup system work represents “the last mile” of information security (IS). To avoid data loss or damage, enterprises should execute data backup periodically to ensure the integrity and availability of such data. Additionally, due to the continuous emergence of IS incidents featuring malicious attacks in recent years, major firms in countries around the world have successively reported being under attack by ransomware viruses. In particular, small and medium enterprises (SMEs) became the potential targets of malicious attacks based on their different types of IS awareness and degrees of digitalization; therefore, IS work has become one of the essential topics with special significance for numerous SMEs. To this end, this paper studied the factors influencing SMEs’ adoption of IS backup systems in the hope that the critical decision-making behaviors of SMEs regarding the issue of IS could be learned. Practical suggestions can be made for the marketing schemes adopted by IS manufacturers concerning the planning of IS backup systems. Thus, this study used three methodological stages to address the exciting issue of IS backup systems for SMEs. In the first stage, 11 factors at two hierarchies involving three constructs influencing SMEs’ adoption of IS backup systems were summarized via a literature review. The constructs included financial consideration (FC), the IS incident, and business IS decision making (BISD-M). In the second stage, an expert questionnaire was applied; an advanced hybrid modified Delphi method (MDM) and analytic hierarchy process (AHP) with expert input were constructed to identify the sorting of overall weights based on the 11 factors included in the first stage. Following the empirical conclusions, the top three critical factors were “disaster loss amount”, “enterprise’s downtime”, and “supplier’s contractual requirements”. The conclusions of this study indicated that two factors were included in the FC construct; thus, the FC construct influenced IS the most, and the BISD-M construct took second place. In the final stage, through re-checking three actual cases, the results of this study were verified with specific respect to the FC. In conclusion, to popularize IS backup systems among SMEs and fully implement IS, manufacturers may start from the FC in the hope that the severe impact caused by IS incidents featuring malicious attacks can be slowed down and the losses encountered can be lowered. The empirical results and conclusions of this study can be used for reference by SMEs, and both theoretical and empirical foundations have been provided for further studies in academic circles; the results above also show a significant application contribution of this study.
Impact of Entrepreneurial Team Contractual Governance on New Venture Resilience: The Mediating Role of Resource Bricolage
Authors: Mai Yingping , Zheng Wenzhi , Wu Yenchun Jim , Dong Tse-Ping
Published: February 2023

Entrepreneurial teams are seen as pilots with which to steer growth in new ventures. However, there is currently a lack of studies exploring how they work under conditions of uncertainty. Based on the upper echelons theory and institutional theory, this study aims to reveal the role of entrepreneurial teams in new venture resilience through a questionnaire survey. Based on the data of 549 valid respondents, we find that resource bricolage is the key factor in new venture resilience, for which entrepreneurial team autonomy management governance is the most effective means. Specifically, (1) Entrepreneurial team profit-sharing governance and management autonomy governance significantly improve new venture resilience, whereas equity governance does not. (2) All the assessed means of entrepreneurial team contractual governance positively stimulate resource bricolage, with management autonomy governance playing the greatest role. (3) Resource bricolage significantly promotes new venture resilience and plays a complete mediating role in the relationship between equity governance and organizational resilience, and also plays a partial mediating role in the relationships of profit-sharing governance and management autonomy governance in regard to organizational resilience. These results suggest that entrepreneurial teams should prioritize authorizing further management rights to encourage team members to take on additional responsibilities, which could improve the resource bricolage capacities of new ventures and thus strengthen their resilience in tackling struggles.
Operationalizing Food System Governance: The Case of Fort Portal Food Change Lab
Authors: Pittore Kat , Debons Pascal
Published: February 2023

Transforming the current food system into one which delivers healthy, sustainable diets will require some form of governance. Due to the complex nature of the food system, multi-stakeholder platforms (MSPs), which bring together actors from multiple sectors into a shared space for joint decision making, have been proposed as one potential governance structure. Using the Food Change Lab, a multi-stakeholder platform led by a local civil society organization in Fort Portal, Uganda, as a case study, this paper uses an explicit conceptual framework for food system governance to understand how such an MSP can support improved food system outcomes. Local-level, civil-society-led MSPs have a limited ability to support a system-based problem framing, due to a tension between a holistic view of the system and identifying concrete entry points for action. They can support boundary spanning by creating horizontal linkages but are less effective in creating vertical linkages due to their locally embedded nature. Because such MSPs are not dependent on formal policy processes, they can be very adaptable and flexible in prioritizing issues and focus areas. The greatest influence of such MSPs in food governance is in supporting inclusiveness, especially of marginalized voices. While such MSPs are unlikely to be able to achieve food system transformation alone, they do play a key role in engaging with marginalized groups, supporting inclusion of local issues and promoting alternative food system visions.
Alien Species Associated with New Introductions and Translocations of Commercial Bivalves in Italian Marine Waters
Authors: Di Blasio Laura , Chiesa Stefania , Arcangeli Giuseppe , Donadelli Valeria , Marino Giovanna
Published: February 2023

Importation and translocation of seeds and live animals for aquaculture purposes are well-established practices in the European and Italian shellfish market. However, these routines may be responsible for alien species introduction and spread, representing a risk for aquaculture activities, human health, as well as for environmental and biodiversity conservation. To estimate and reduce the potential impact of alien and locally absent species on aquatic habitats due to aquaculture practices, Member States have adopted Council Regulation (EC) No 708/2007, which provides guidance for risk analysis and contingency measures for mitigation. Despite this legal framework, traceability data for shellfish movements are currently lacking and need to be improved in all EU Member States. The present work presents an updated literature summary of alien species associated with bivalve farming and trading. The information herein collected will be helpful to upgrade the traceability system of farmed bivalves in Italian marine waters with reference to non-target species, representing a knowledge baseline for setting bio security plans to reduce their risk of introduction and further spreading.
Geoelectrical Characterization of Coastal Aquifers in Agbado-Ijaye, Lagos, Southwestern Nigeria; Implications for Groundwater Resources Sustainability
Authors: Oyeyemi Kehinde D. , Abuka-Joshua Joyce , Rotimi Oluwatosin J. , Dieppois Bastien , Gomo Modreck , Olaojo Abayomi A. , Falae Philips O. , Metwaly Mohamed
Published: February 2023

Water is a natural resource; its availability depends on climatic and geological conditions, and it is invariably controlled by human activities. Agbado-Ijaye lies within a coastal area, where local communities have been facing incessant water shortages, especially during the dry season. This study investigated the groundwater-bearing geological unit(s) using hydrogeophysical techniques in the coastal environment. The electrical resistivity technique, involving vertical electrical sounding (VES) and two-dimensional (2D) electrical resistivity imaging via Wenner array electrode configuration, was used to characterize the geoelectric distribution. Twenty VES stations were investigated and current electrodes (AB/2 m) spacing expanded from 1–200 m; four 2D electrical resistivity imaging traverses having a length of 200 m each and interelectrode spacing of 10 m (level 1) to 60 m (level 6) was adopted. Four geoelectric units were delineated, namely: topsoil (15–251 Ωm), clayey (28–100 Ωm), clayey sand (125–190 Ωm) and sandy (205–876 Ωm) with thicknesses ranging from 0.7–1.3 m, 4.1–19.0 m, 2.6–15.6 m and undefined depth, respectively. The 2D imaging sections also detected similar geoelectric layers, corroborating the VES-derived sections. The inverted sections delineated two different aquifers: the shallower low-yield aquifer comprising sandy clay/clayey sand units with a maximum depth of about 5.5 m. This layer is adjudged to be the continental plain sand of the Benin Formation. The deeper high-yield aquifer with a maximum depth of 30.4 m is a beach sand unit that belongs to the Tertiary Alluvium of the Dahomey Basin. The study showed that hydrogeophysical investigation is vital in exploring, developing, and managing coastal groundwater resources.
Worldwide Overview and Country Differences in Metaverse Research: A Bibliometric Analysis
Authors: Shen Jinlu , Zhou Xiangyu , Wu Wei , Wang Liang , Chen Zhenying
Published: February 2023

As a research topic integrating various subjects and technologies, Metaverse research has been a global concern in recent years. This study explores the hotspots and frontiers of academic research on the Metaverse based on a bibliometric analysis from 2012 to 2021. A keyword retrieval dataset related to Metaverse research was constructed based on expert consultation and manual reading of the literature, retrieving articles and conference papers from the Scopus database. Critical points in Metaverse research are represented in terms of research scale, keyword co-occurrence networks, keyword citation bursts, and international collaborative networks with the application of VOSviewer and CiteSpace’s bibliometric visualization software. The results indicate that Metaverse research is experiencing rapid growth, with countries/regions increasing their production at varying speeds. The results also indicate the three most prolific countries, the United States, China and Germany, for comparison, showing the leading topic as virtual reality in Metaverse research, and we find that there are differences in topic clustering and hotspot evolution among the three countries over the past decade. By determining the current research status and the overall development path of the Metaverse field, the paper intends to provide a reference for the future research development and technical application of the Metaverse.
Influence of Online Information Quality and Website Design on User Shopping Loyalty in the Context of E-Commerce Shopping Malls in Korea
Authors: Yoo Sungjoon , Lee Dong-Joo , Atamja Louis
Published: February 2023

An exponential growth in the usage of the internet and e-commerce has led to the creation of many e-commerce retail malls. In addition to promotional schemes and prices, these e-commerce retailers use online information quality and website design to differentiate themselves from other retail players. Therefore, the objective of this research is to investigate how e-commerce information quality (information trust and information accuracy) and website design influence customer satisfaction, and how customer satisfaction subsequently influences user shopping loyalty in South Korea. Using an online survey, data were obtained from 600 users of e-commerce shopping malls in Korea. Results from structural equation modeling showed that information trust, information accuracy and website design had a positive influence on customer satisfaction, which subsequently led to user shopping loyalty. This paper has useful implications for e-commerce retail malls. One important implication is that e-commerce retailers must endeavor to provide trustworthy information, accurate information and a comfortable website design to attract and retain customers.
Assessment of Water Quality Index and the Probable Human Health Implications of Consuming Packaged Groundwater from Abeokuta and Sagamu, Southwestern Nigeria
Authors: Taiwo Adewale M. , Ogunsola Deborah O. , Babawale Mutiat K. , Isichei Onyinyechukwu T. , Olayinka Sukurat O. , Adeoye Ifeoluwa A. , Adekoya Ganiyat A. , Tayo Olamide E.
Published: February 2023

Background: Contamination of groundwater could result in serious and irreparable health problems for consumers. This study assessed the water quality and human health implications of metals in packaged groundwater from Abeokuta and Sagamu, southwestern Nigeria. Methods: One hundred and forty bags of the packaged groundwater were purchased and analyzed for physical and chemical parameters using standard procedures, while metals were determined using inductively coupled plasma optical emission spectrophotometry. Risk assessment of metals was estimated using hazard index (HI), hazard quotient (HQ), and cancer risk (CR). Water quality index (WQI) was also evaluated. Results: The observed physical and chemical parameters, except Mn and Fe, in the packaged groundwater samples were observed to be within the permissible limits of the World Health Organization. The WQI data indicated suitability for drinking purposes. The health risk data indicated high HQs > 1.0 for Ca (for adults and children at all the monitoring sites), Mn (children at all the sites, and adults at six sites), Mo (children at four sites, and adults at three sites), and Cu (children at three sites and adults at one site). Conclusion: The CRs of the packaged groundwater for Co and Ni at many sites revealed values > the acceptable limit of 1 × 10−4, indicating possible development of cancer by the consumers.
Directions for the Sustainability of Innovative Clustering in a Country
Authors: Bobek Vito , Streltsov Vladislav , Horvat Tatjana
Published: February 2023

This paper presents potential improvements through utilizing the cyclical nature of clusters by human capital, technology, policies, and management. A historical review of the formation and sustainable development of clusters in the US, Europe, Japan, China, and other regions is carried out to achieve this. The aim was to identify and assess the prominent occurrence cases, the central institutional actors, the indicators of their innovative activity, and the schematics of successful cluster management. The theory section covers current classification methods and typology of innovation-territorial economic associations. Consequently, a regression analysis model is produced to identify the potential dominant success factors in implementing the innovation policy of the most successful innovative clusters. Comments on the influence of these predictors on the competitiveness and level of innovative development of the 50 inspected countries follow. As a result of qualitative and quantitative analysis, an overview of the best world practice, the new vision, and its priorities are proposed to improve the efficiency at the level of management structures of innovation clusters.
Telepresence Robot with DRL Assisted Delay Compensation in IoT-Enabled Sustainable Healthcare Environment
Authors: Naseer Fawad , Khan Muhammad Nasir , Altalbe Ali
Published: February 2023

Telepresence robots have become popular during the COVID-19 era due to the quarantine measures and the requirement to interact less with other humans. Telepresence robots are helpful in different scenarios, such as healthcare, academia, or the exploration of certain unreachable territories. IoT provides a sensor-based environment wherein robots acquire more precise information about their surroundings. Remote telepresence robots are enabled with more efficient data from IoT sensors, which helps them to compute the data effectively. While navigating in a distant IoT-enabled healthcare environment, there is a possibility of delayed control signals from a teleoperator. We propose a human cooperative telecontrol robotics system in an IoT-sensed healthcare environment. The deep reinforcement learning (DRL)-based deep deterministic policy gradient (DDPG) offered improved control of the telepresence robot to provide assistance to the teleoperator during the delayed communication control signals. The proposed approach can stabilize the system in aid of the teleoperator by taking the delayed signal term out of the main controlling framework, along with the sensed IOT infrastructure. In a dynamic IoT-enabled healthcare context, our suggested approach to operating the telepresence robot can effectively manage the 30 s delayed signal. Simulations and physical experiments in a real-time healthcare environment with human teleoperators demonstrate the implementation of the proposed method.
Aerodynamic Characterization of the 516 Arouca Pedestrian Suspension Bridge over the Paiva River
Authors: Marques da Silva Fernando
Published: February 2023

Given the 516 Arouca pedestrian suspension bridge’s design and characteristics, the owner, a municipality, required a set of tests in order to evaluate its aerodynamic characteristics and dynamic response, aiming at both structural safety and user comfort. Wind tunnel tests were performed over a sectional scaled model to obtain the static aerodynamic coefficients and dynamic response. The tests were carried out on different bridge configurations—a deck with people and a deck with an arch for secondary cables (connecting each suspension point to the catenary on the opposite side of the deck)—for the static coefficients. For the dynamic response, only the deck alone was tested. A major challenge had to be overcome, as the main displacement mode belonged to a swing movement, to assemble a wind tunnel setting, requiring a suspension system allowing wind displacements. A persistent trend of small amplitude displacements was identified, influencing user comfort and contributing to the installation of the secondary cables, but no aerodynamic instabilities were identified.
On the issue of the effi ciency of grain export and import in the EAEU
Authors:   Plekhanov Russian University of Economics, Moscow, Russia, Agapkin A.M.
Published: February 2023

A characteristic feature of Russian exports in the agri-food sector is that about 70% of the products of this sector supplied to the EAEU countries’ market have a relatively high degree of processing, meanwhile, products supplied outside the EAEU mainly have a low degree of processing. In the sphere of trade in grain products, there is a suffi cient number of problems, which are also exacerbated by the current political situation. In order to increase the effi ciency of mutual trade between the EAEU countries and reduce the share of “shady schemes”, it is possible to organize an authorized interstate agrarian exchange. This measure will help increase the transparency and stability of the grain trade, as well as contribute to pricing streamlining.
Social programming as a technology of youth policy
Authors:   FSAEI HE Southern Federal University, Pilyugina К. P. ,   Rostov-on-Don
Published: February 2023

The article deals with social programming as a tool for the formation of state youth policy. The thesis on the ability of historical politics as a tool of social programming to provide legitimization of power by means of fixing it in programs and strategies is substantiated.
Socialization of youth in Kyrgyzstan
Authors:   Osh State University, Osh, Bishkek, Kyrgyz Republic, Rustamova Dilnara Akramovna , Karashova Nurmira Kazakovna ,   Osh State University, Osh, Bishkek, Kyrgyz Republiс
Published: February 2023

This article analyzes the socio-political and economic reforms in society. Transformations in society have led to social change and restructuring of basic social institutions. The article reflects the results of an online sociological survey (2,000 respondents) on the problems of youth socialization. The study involved university graduates over the past 5 years. According to the respondents, today in the behavior of young people one can notice the values and ideas of globalization, as well as of the Muslim religion. Transformation in society had a great influence on the process of youth socialization. Along with that, material values in society rose to a higher level, which had an impact on the socialization of youth as well.
Fish resources of the Novosibirsk region: current state of the fishery
Authors:   Novosibirsk Branch of Russian Federal Research Institute of Fisheries and Oceanography (ZapSibNIRO), Russia, Novosibirsk, Abramov A.L. , Rostovtsev A.A. ,   Novosibirsk Branch of Russian Federal Research Institute of Fisheries and Oceanography (ZapSibNIRO), Russia, Novosibirsk, Zaitsev V.F. ,   Novosibirsk Branch of Russian Federal Research Institute of Fisheries and Oceanography (ZapSibNIRO), Russia, Novosibirsk, Suknev D.L. ,   Novosibirsk Branch of Russian Federal Research Institute of Fisheries and Oceanography (ZapSibNIRO), Russia, Novosibirsk, Dorogin M.A. ,   Novosibirsk Branch of Russian Federal Research Institute of Fisheries and Oceanography (ZapSibNIRO), Russia, Novosibirsk, Interesova E.A. ,   Novosibirsk Branch of Russian Federal Research Institute of Fisheries and Oceanography (ZapSibNIRO), Russia, Novosibirsk
Published: February 2023

There are 22 species of fish were noted, however, only 15 species included in the fishing statistics in 13 commercial units are covered by the fishery in the Novosibirsk region. The main commercial value are fishes of the genus Carassius (Carassius carassius and C. gibelio) — 27.4% of fish catches in the region, perch Perca fluviatilis — 21.0%, Common carp Cyprinus carpio — 17.7% and roach Rutilus rutilus — 12.1%. Freshwater bream Abramis brama, providing 83.4% of the volume of fish production in the Novosibirsk reservoir and 58.3% in the Ob river, makes up only 8.0% of the catches in the whole region. The main volume of fish catch in the Novosibirsk region is provided by Lake Chany. There are almost 17% more fish are caught than in other water bodies in aggregate. The total catch in the region over the past 5 years amounted to 41.8 thousand tons. At the same time, a significant increase in catches is observed over this period — more than 1.9 times, from 5.4 to 10.3 thousand tons per year. However, the potential volumes of fish production in the Novosibirsk region significantly exceed the fact catches and over the past 5 years have been determined in the amount of 57.2 thousand tons. The main reason of the fish stocks underutilization is, first of all, the existing system of fishery organization — where there are few fishers, the development of stocks is much higher. In addition, the intensity of fishing for some species is greatly influenced by the market price of its.
Dinamômetros hidráulico e digital: influência da ergonomia na fadiga e força de preensão
Authors: Iskandar Issa Narriman , Blascovi-Assis Silvana Maria , Rezende Callegari Marilia , Cymrot Raquel
Published: February 2023

Introdução. O estudo da Ergonomia, no que diz respeito ao desenvolvimento de produtos, tem tido cada vez mais destaque, trazendo como premissa a busca por conforto, eficiência e segurança para os usuários. Objetivo. Avaliar a influência das diferenças ergonômicas e de pegas entre dinamômetros, hidráulico e digital, na força de preensão palmar. Método. Foi avaliada a força de preensão de 35 indivíduos, em seis séries de medições distintas, cada série com 31 repetições de preensão, realizadas em dias diferentes, intercalando-se os modelos de aparelhos utilizados em cada série, de duas a quatro semanas. Também foram coletadas opiniões dos voluntários quanto à realização dos testes, prós e contras de cada um dos aparelhos. As informações foram comparadas em relação aos resultados por faixa etária e sexo. Foram realizadas análises estatísticas para testar as diferenças entre as medidas realizadas no mesmo indivíduo pelos dois tipos de dinamômetro e para comparação do estado de fadiga alcançado nos dois cenários. Resultados. Foram encontradas diferença nos valores de força de preensão entre os dois tipos de aparelho, sendo estes maiores com o dinamômetro hidráulico para 65,7% da amostra. Conclusão. Existe influência da diferença de ergonomia entre dinamômetros de diferentes pegas na força de preensão e que o dinamômetro digital pode proporcionar maior conforto para os usuários realizarem os testes sem correr o risco de derrapagem, uma vez que possuía uma empunhadura emborrachada. O estado de fadiga foi atingido de forma semelhante nos dois aparelhos.
GENERATIVE DESIGN AND ADAPTATION FOR MANUFACTURING OF STEERING KNUCKLE. PART II
Authors: Grigorenko A. , Shopina E.
Published: February 2023

The article describes the creation of a 3D model of the steering knuckle of the “Formula Student” class car using the SolidEdge CAD / CAE system application, named generative design. The initial data are a model of an overly strong steering knuckle, previously calculated load values for various operating modes, information about the properties of the material. In the process of optimization, technological settings are varied in order to obtain a geometry that is as suitable as possible for cutting on a three-axis milling machine with a CNC and without an additional rotary axis. The result of the generative design is used to build a model of a knuckle that can be milled with repositioning and clamped into universal fixtures such as a vise. The construction is carried out using standard solid modeling tools (lofting by sections, adding thickness, etc.). Fastening elements have been added to the part, in the form of rectangular bodies, which will need to be removed using manual cutting and grinding operations after the milling operations are completed. Additionally, holes are removed parallel to the Z axis, which can only be made after cutting the fasteners.
PARAMETRIC LIBRARY ELEMENTS AS AN EFFECTIVE TOOL FOR IMPROVING INFORMATION MODELING TECHNOLOGIES IN CONSTRUCTION
Authors: Naumov A. , Kucherenko A. , Bobrovnikov E. , Korolskaya A.
Published: February 2023

It is rational to build automation of design activities as a stage of information modeling in construction on the formalization and modeling of numerous routine operations that make up the bulk of the complexity and cost of design. At the same time, elemental design is associated with frequent reference to specialized reference and regulatory literature, software external to the modeling environment, which form the necessary information flow for high-quality design. One of the effective directions for accelerating and improving design activities is the development and use of parametric models of elements of buildings, structures and building structures, containing both algorithms for constructing spatial and layout images of an object, and providing it with the necessary algorithmic equipment for automated design according to a normative or user-adapted scenario. The paper presents an example of substantiation, development and use of parametric library elements in information modeling of buildings, structures and building structures. On the example of a parametric model of a free-standing foundation, modeled in the Graphisoft GDL environment for use in the ARCHICAD PC, the goals of creating and the benefits of using parametric (smart) objects of the information model are considered, effective work with a parametric model is demonstrated, which reduces the complexity of design activities, the key parameters of the object and examples of scripts are given software environment, an assessment of efficiency was made, prospects for further development of parametric modeling tools were determined.
RESULTS OF EXPERIMENTAL STUDIES FOR REINFORCED CONCRETE STRUCTURES RESISTANCE ON A DEFORMABLE BASE IN BENDING WITH TORSION
Authors: Kolchunov Vl. , Kozarez A. , Protchenko M.
Published: February 2023

The article obtains the results of experimental studies of reinforced concrete structures under torsion with bending. The basic parameters of the stress-strain state of eight series of structures, including those on the deformable base and composite ones, have been determined. A test stand is developed for realization of the chosen loading schemes and getting of reliable experimental values of crack loading, deflections, angles of turn, crack opening width, distance between cracks and other parameters of the structures. Loading is carried out smoothly, in small steps with endurance at each stage. The value of crack opening width is fixed in the compressed and stretched working reinforcement, at the distance of two diameters from the reinforcement axis, in the middle of the height of an experimental reinforced concrete structure, and at characteristic points along the entire crack profile. Tests is conducted for structures on a deformable base and for composite structures of two layers of different concrete classes. The deflections are measured at six points, with simultaneous determination of the rotation angles. The research results show, that the values of relative deformations according to the readings of electrical resistors, deflections and angles of rotation in the center of the tested structure and in the places where the load is applied are obtained.
STUDY OF THE TECHNOLOGY FOR FORMATION OF THERMAL CONTACT SURFACES OF HEAT AND MASS TRANSFER PROCESS INTENSIFIERS
Authors: Kolenchukov O. , Petrovsky E.
Published: February 2023

The development of scientific and technological progress in recent decades has led to an increase in the consumption of natural energy carriers. This in turn affects mineral deposits – they are being depleted. In order to reduce energy consumption, the issue of energy conservation is relevant. One of the ways to solve this problem is to conduct research in the field of improving the efficiency of energy technology equipment with the subsequent development of universal technology and equipment for the intensification of heat and mass transfer processes. This article presents the most currently used methods of intensification of heat exchange processes, their advantages and disadvantages. In addition, the most promising method is determined. The technology of forming a thermocontact (discretely rough) surface on a metal sheet is described. Expressions for determining the effort required to produce this surface under various conditions are defined. A method of experimental research and a tool for manufacturing a thermocontact surface are presented. As a result of experimental studies, it is found that, depending on the conditions of formation of the thermal contact surface, the analytical solution differs from the experimental values by 5.3–13.4 %. Another important factor affecting the shaping is the feed rate of the metal sheet, its optimal value is 1000–2000 mm/min.
A função da promotoria no Tribunal Penal Internacional e seu papel na implementação dos Direitos Humanos das vítimas
Authors: Junior Adalberto Ferreira de Souza
Published: February 2023

O presente artigo tem por objetivo analisar aspectos da atuação do Gabinete da Promotoria no Tribunal Penal Internacional. Para explicar o tema e pormenorizar toda a complexidade da atuação do órgão, é imprescindível uma digressão ao escopo de proteção da dignidade da pessoa humana, mais notadamente das vítimas dos chamados “core crimes”, de competência da Corte Penal Internacional. O papel das vítimas e seu histórico de proteção e participação efetiva no processo penal internacional é um dos marcos na criação do Tribunal Penal Internacional, além da ordem cronológica dos acontecimentos históricos que contribuíram para a formação do que se tem hoje como verdadeira revolução na proteção aos direitos humanos e atuação efetiva do gabinete da promotoria na implementação da responsabilidade dos autores de delitos graves e proteção das vítimas.
Os benefícios do uso da cetamina em pacientes com dor crônica, na atual crise do abuso de opioides
Authors: Lima João Vinicius Santos , Silva Décio Fragata , Linhares Lucas Fernandes , Menezes Marília Alves , De Faro Cynthia Cristina Pagliari
Published: February 2023

INTRODUÇÃO: A cetamina é um antagonista do receptor N-metil-D-aspartato bastante usado no meio anestésico como droga dissociativa na indução anestésica. No entanto, devido ao seu alto poder analgésico, esse medicamento tem sido, amplamente, explorado no tratamento da dor crônica concomitante ao crescimento do uso abusivo de opioides. MATERIAIS E MÉTODOS: Foi feito uma pesquisa nas bases de dados PubMed, Lilacs e Cochrane entre os anos 2017 e 2022. Ao final, foram escolhidos 16 artigos para compor a revisão. RESULTADOS E DISCUSSÃO: Vários estudos indicaram uma grande efetividade do efeito analgésico em doses subanestésicas da cetamina, em pacientes com hiperalgesia induzida por opióides e na diminuição da dose de morfina usada em pacientes que fazem seu uso prolongado,além disso,a dor neuropática se mostrou como o  principal tipo de dor crônica beneficiada pelo uso dessa medicação. CONCLUSÃO: Apesar ainda da carência de estudos mais detalhados com relação a diversos outros tipos de dor, a cetamina se mostrou uma boa alternativa ao uso de opióides, não com como droga substituta, mas também como droga adjuvante, de forma a reduzir os efeitos danosos do uso crônico de opioides.Em doses subanestésicas e usadas de forma correta, é um agente bastante seguro, com efeito colaterais limitados.