bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Feasibility of Trajectory Controller by SS Equation of an Error Model in WMR
Authors: Qev Yang , Meshach Mesho 
Published: January 2023

There has been an increasing amount of research on WMRs. The WMRs have lots of advantages: their mechanical system is usually simple; the whole movement mostly contains two dependent motors; and their motions in two-dimensional space are quite adaptable. At the same time, the WMRs have better power efficiency. WMRs have been studied from many points of view, such as modelling control, obstacle avoidance, localization, tip-over stability, and so on. This paper discusses the control algorithm. WMRs have nonholonomic constraints. That is, the mobile robot may not be able to reach a specific position and angle in a specific time; however, the robot can reach the target in a different motion or within a limited time. In this paper, an error model based on the WMR is introduced. The model explains the error between the actual position and the ideal or target position in the continuous motion of WMRs. The error model will be transformed into a state-space equation in order to demonstrate that the algorithm that controls the WMR`s movement is controllable. By splitting the inputs into and , the whole equation is transformed into a zero-input state-space system. Then, the errors can be minimized with the optimization of the feedback. The results show that by optimizing the time-varying feedback matrix, the error is asymptotically stable and close to zero. Therefore, by adding this control law to the controller, an approach to making mobile robots follow the planned trajectory is obtained.
Fuzzy DEMATEL Approach to Assess Factors Leading to Navigational Equipment Defect
Authors: Tac Umut 
Published: January 2023

The increasing attention to the improvement and continuous enhancement of navigational safety has led to a high standard of navigation systems and the introduction of new technologies. Although several conventions, recommendations, guidelines, and performance standards for navigational equipment are set out by the International Maritime Organization (IMO), unexpected defects on this equipment may still occur on board. Any defect on this equipment may cause both accidents and commercial loss. This paper presented A fuzzy Decision-Making Trial and Evaluation Laboratory (DEMATEL) technique to assess factors that may cause navigational equipment defects, considering the academic and industrial gaps. Five homogeneous experts were asked to evaluate the relationship among the factors with respect to the linguistic scale. After the factors were ascertained and evaluated, preventive measures for most important factors were recommended in the view of experts’ opinions in order to minimize and avoid their effect. The findings of the study will contribute to understanding the causes of navigational equipment defects and provide a basis for the continuous safety process of the ship’s bridge operations in a comprehensive aspect.
Revelatory Case Study for the Emergence of Powerships: The Floating Power Plant Innovation for Rural Electrification
Authors: Pamik Murat , Bayraktar Murat , Konur Olgun , Nuran Mustafa 
Published: January 2023

The existence of energy is essential to countries striving to survive, both socially and economically. In this context, countries establish different types of power plants and use alternative energy resource,s such as solar and wind power, to meet their energy needs. Establishing power plants and using alternative energy resources are tough for some regions, such as Middle Eastern, African, and Asian countries. Thereby Powerships have been developed due to the consideration that these countries suffer from energy deficiency and encounter difficulties in building land power plants. In this study, the emergence of Powerships, providing electricity to energy-deficient countries and the successful launch strategies, are investigated. A single revelatory case study concept is used to understand what exactly the Powerships are, where they operate, positive and negative situations encountered during operation, as well as economic benefits compared to other systems. In this context, together with the intensive literature review, semi-structured interview questions are prepared for several company officials and former employees and detailed evaluations are described in the Powerships operation process. Semi-structured interview questions results are evaluated and discussed with a view to understanding how the company has successfully launched its innovative product to the energy market. This article will, we hope, represent a significant resource for experts, academics, and companies working on floating energy power plants in the future.
Scrutinizing the Manifestation of Relational Norms: A Study of Terminal Operating Company-Liner Shipping Agency Relations
Authors: Bilge Sağlam Bayram , Karataş Çetin Çimen 
Published: January 2023

Port relations with port users are essential for overall supply chain functioning, as the roles assigned to ports grow every day. While port supply chain transactions are generally conducted using contractual governance mechanisms, ports need to develop relational norms to keep their relations with port users at a high level, helping the ports realize their desired performance levels. This study aims to show the role of relational norms through the classification of domains they are manifested in. The goal of the classification is to unravel the specific domain of each norm in terminal operating company-liner shipping agency relations by exploring their occurrence and functioning. The data were gathered through interviews with professionals from terminal operating companies in Aliaga and liner shipping agencies that use at least one of these terminals. Study results show that the norms “flexibility” and “solidarity” are manifested as the financial and operational parts of the relation, while the norm “information sharing” is closely related to the effective use of information exchange platforms and the quality of exchanged information. The findings show how relational norms can add value to relationship performance in contract-based port supply chain relations.
Socioeconomic Characteristics and Perspectives on Cargo Handling: A Study of Tin Can Island Port, Apapa, Nigeria
Authors: Oluwakoya Adeniyi , Ogundipe Seun 
Published: January 2023

This research examines the socioeconomic and cargo handling characteristics of the Tin Can Island Port in Nigeria. The rise in global trade agreements has led to a cargo handling crisis in Nigeria. However, the perspectives of the socioeconomic characteristic have not yet been studied. The sampling method used was simple random sampling, with 100 questionnaires given to all the employees and consumers who use the terminal. However, the study was based on 93 respondents who completed the survey satisfactorily. In addition, it includes in-depth interviews with some of the port-terminal employees, a few customers, and neighborhood residents on the use of intelligent port systems. The data instruments' validity and reliability were checked with a Cronbach alpha reliability test of 0.80-0.89 and found to be accurate for all the parameters. The information was analyzed using descriptive, qualitative, and chi-square statistical methods. The study found that socioeconomic factors, especially the age of the cargo handling staff, impacted the port's capability. The level of port automation and the adoption of intelligent port systems are still relatively low, though remarkable since the reforms. The research shows a significant relationship between the perception of cargo traffic level and change in the cargo handling procedure at Tin Can Island Port. In addition, it reveals a substantial connection between policy adoption and cargo handling improvement at the port.
Corrosion and Tribological Characteristics of FSPed Aluminum Alloy AA5052
Authors: Yashwanth Kumar B G , Lokesh Kumar R , Ramalingam Vaira Vignesh , Viswanath J Kaasi , Harikeshava R , Padmanaban R 
Published: January 2023

Friction stir processing (FSP) is a solid-state and effective process for surface modification of aluminium alloys. In this study the AA5052 alloy, widely used in marine applications, has been subjected to FSP. The FSP trials have been carried out by altering the FSP process parameters (tool rotation speed, tool traverse speed, and shoulder diameter). The friction stir processed specimens have been characterised / tested for microstructure, microhardness, sliding wear, immersion corrosion, and electrochemical corrosion. The hybrid polynomial – radial basis function-based models have been developed to determine the relationship between the process parameters and the evaluated properties. Furthermore, the optimum parameters for obtaining high hardness, wear resistance, and corrosion resistance have been determined. Microstructure evaluation in the friction stir processed specimens has shown refinement and uniform dispersion of β particles throughout the α-Al matrix. The results show that the improvement in properties is a result of the homogeneous dispersion of secondary β phase particles in the matrix. Friction stir processing of AA5052 alloy has improved hardness by ~14.5%, wear resistance by ~83%, and corrosion resistance ~87%. The optimum process window for friction stir processing of AA5052 alloy is tool rotation speed between 500 rpm and 900 rpm, tool traverse speed between 10 mm/min and 30 mm/min, and tool shoulder diameter of 18 mm and 21 mm.
The Effect of an Extended Flipped Classroom Model for Fully Online Learning and its interaction with Working Memory Capacity on Students’ Reading Comprehension
Authors: Diningrat Syaiputra Wahyuda Meisa , Setyosari Punaji , Ulfa Saida , Widiati Utami 
Published: January 2023

Abstract
The flipped classroom model is an innovative and increasingly popular pedagogical approach in higher education. However, despite its increasing popularity, few studies have elaborated on specific strategies to implement a flipped classroom model. This study has as its purpose to investigate the effect of an extended flipped classroom model for fully online learning and its interaction with working memory capacity on students’ reading comprehension by means of a quasi-experimental study with a 2 x 2 factorial design in which a total of one hundred and twelve students participated for nine weeks. The two-way analysis of variance revealed that students’ reading comprehension ability increased significantly in the extended flipped classroom model compared to that of students in the original flipped classroom. Students with a high WMC also largely outperformed their counterparts with a low WMC in reading comprehension, an interaction effect being thus identified between the instructional model and WMC as well. This paper concluded with a call to implement an extended flipped classroom model in reading courses and to undertake more specific types of research into the effectiveness of this model across different settings and language skills.
How to Embed SRL in Online Learning Settings? Design Through Learning Analytics and Personalized Learning Design in Moodle
Authors: Molins Laia Lluch , García Elena Cano 
Published: January 2023

Abstract
One of the main generic competencies in Higher Education is “Learning to Learn”. The key component of this competence is the capacity for self-regulated learning (SRL). For this competence to be developed, peer feedback seems useful because it fosters evaluative judgement. Following the principles of peer feedback processes, an online peer feedback proposal was created in the context of complex tasks in several degree courses (n = 448 students) at the University of Barcelona. A specific didactic sequence supported by digital technologies through Moodle was designed and validated after a deep analysis of the theoretical underpinnings of SRL models. A peer review proposal was ratified by the students, who pointed out the benefits of both receiving and, especially, giving feedback. The integration of Moodle tools with external tools such as Personalized Learning Design was highly valued by reviewers (n = 3 expert judges) and the possibilities for students to monitor their own progress through task completion was revealed as a positive aspect. Furthermore, the creation of personalized alerts to support learning processes also received a very high rating. The final model includes the changes derived from the validation process and suggests a reliable technology-supported intervention in an LMS, which is transferable to a larger scale.
Teachers’ Digital Competence. The Case of the University System of Galicia
Authors: Fernández-Morante Carmen , López Beatriz Cebreiro , Casal-Otero Lorena , León Francisco Mareque 
Published: January 2023

Abstract
The digital teaching competence of university professors is of vital importance to improving the quality of higher education, and for the strategic positioning of public universities in our country. The purpose of this study is to find out the level of digital competence of Galician university professors, as well as to identify whether there are significant variable-based differences. To this end, a non-experimental design with a descriptive approach and hypothesis contrast is proposed. The sample studied is made up of a total of 610 teachers from the three public universities of Galicia (Spain), who responded to the DigCompEdu Check-In instrument adapted to the Spanish context (Cabero-Almenara & Palacios-Rodríguez, 2020). In general terms, the results show a medium-low level and the existence of significant differences depending on the age, recruitment profile and area of knowledge of the teaching staff. Specifically, the younger teaching and research staff, together with Social and Legal Sciences, have a higher level of competence, whereas tenured teaching and research staff have a lower level of competence with respect to contracted workers. Therefore, training plans should be developed which focus on teaching. Expert advice and personalized methodological support should shift the focus of the intervention radically from technology to teaching.
Full-time Schools in Portugal: Participation and Educational Achievement
Authors: Abrantes Pedro 
Published: January 2023

Abstract
Since its implementation in 2006, Portugal’s full-time schools programme led to a massive increase of curricular enrichment and family-support activities in public schools throughout the country. The literature review brings together important contributions from previous research and assessments of the full-time school programme, including results of similar programmes in other countries and particularities of the Portuguese case. The methodological design is outlined, describing the research questions as well as the variables and categories under consideration. Drawing on extensive administrative data from all public schools in the country, the analysis focuses on participation rates and their link to school location, socioeconomic context, local providers, and educational achievements. The (moderately) positive correlation between participation rates and educational success arises as a key finding, for which possible explanatory factors are discussed. The article concludes with some implications for policy-making and future research on this topic.
Analysing the Impact of Artificial Intelligence and Computational Sciences on Student Performance: Systematic Review and Meta-analysis
Authors: García-Martínez Inmaculada , Fernández-Batanero José María , Fernández-Cerero José , León Samuel P. 
Published: January 2023

Abstract
Artificial intelligence (AI) and computational sciences have aroused a growing interest in education. Despite its relatively recent history, AI is increasingly being introduced into the classroom through different modalities, with the aim of improving student achievement. Thus, the purpose of the research is to analyse, quantitatively and qualitatively, the impact of AI components and computational sciences on student performance. For this purpose, a systematic review and meta-analysis have been carried out in WOS and Scopus databases. After applying the inclusion and exclusion criteria, the sample was set at 25 articles. The results support the positive impact that AI and computational sciences have on student performance, finding a rise in their attitude towards learning and their motivation, especially in the STEM (Science, Technology, Engineering, and Mathematics) areas. Despite the multiple benefits provided, the implementation of these technologies in instructional processes involves a great educational and ethical challenge for teachers in relation to their design and implementation, which requires further analysis from the educational research. These findings are consistent at all educational stages.
Experimental Analysis of the Effectiveness of a Cyber-physical Robotic System to Assist Speech and Language Pathologists in High School
Authors: Caldwell-Marin Eldon Glen , Cazorla Miguel , Cañas-Plaza José María 
Published: January 2023

Abstract
This research focuses on whether the use of a cyber-physical robotic system (CPRS) to assist Speech and Language Pathologists (SLP) in a Special Education service is beneficial. The research method is based on a quasi-experiment with a 2k design and a two-way ANOVA, implemented with real high school students over 10 weeks. It was found that the use of this CPRT could improve, preliminarily and as an initial exploratory finding, therapeutic speech effectiveness up to 11.3 percentage points with a statistical confidence of 95%, when SLPs work with students with mild articulation disorder and a restricted time for therapy, but especially when the technology is used without time constraints. It is concluded that assistive CPRT could be a causal factor of improvement in specific treatments performed by SLPs, with the statistical evidence being sufficiently significant (95%) to maintain scientific and educational interest in this research line in the future.
Association of Active Postnatal Care With Infant Survival Among Periviable Infants in the US
Authors: Silva Emani R. , Shukla Vivek V. , Tindal Rachel , Carlo Waldemar A. , Travers Colm P. 
Published: January 2023

ImportanceActive postnatal care has been associated with center differences in survival among periviable infants. Regional differences in outcomes among periviable infants in the US may be associated with differences in active postnatal care.ObjectiveTo determine if regions with higher rates of active postnatal care will have higher gestational age-specific survival rates among periviable infants.Design, Setting, and ParticipantsThis cohort study included live births from 22 to 25 weeks’ gestation weighing 400 to 999 g in the US Centers for Disease Control and Prevention (CDC) WONDER 2017 to 2020 (expanded) database. Infants with congenital anomalies were excluded. Active postnatal care was defined using the CDC definition of abnormal conditions of newborn as presence of any of the following: neonatal intensive care unit (NICU) admission, surfactant, assisted ventilation, antibiotics, and seizures. Data were analyzed from August to November 2022.Main Outcomes and MeasuresRegional gestational age-specific survival rates were compared with rates of active postnatal care in the 10 US Health and Human Services regions using Kendall τ test.ResultsWe included 41 707 periviable infants, of whom 32 674 (78%) were singletons and 19 467 (46.7%) were female. Among those studied 34 983 (83.9%) had evidence of active care, and 26 009 (62.6%) survived. Regional rates of active postnatal care were positively correlated with regional survival rates at 22 weeks’ gestation (rτ[8] = 0.56; r2 = 0.31; P = .03) but the correlation was not significant at 23 weeks’ gestation (rτ[8] = 0.47; r2 = 0.22; P = .07). There was no correlation between active care and survival at 24 or 25 weeks’ gestation. Regional rates of both NICU admission and assisted ventilation following delivery were positively correlated with regional rates of survival at 22 weeks’ gestation (both P &amp;lt; .05). Regional rates of antenatal corticosteroids exposure were also positively correlated with regional rates of survival at 22 weeks’ gestation (rτ[8] = 0.60; r2 = 0.36; P = .02).Conclusions and RelevanceIn this cohort study of 41 707 periviable infants, regional differences in rates of active postnatal care, neonatal intensive care unit admission, provision of assisted ventilation and antenatal corticosteroid exposure were moderately correlated with survival at 22 weeks’ gestation. Further studies focused on individual-level factors associated with active periviable care are warranted.
Racial Health Equity and Social Needs Interventions
Authors: Cené Crystal W. , Viswanathan Meera , Fichtenberg Caroline M. , Sathe Nila A. , Kennedy Sara M. , Gottlieb Laura M. , Cartier Yuri , Peek Monica E. 
Published: January 2023

ImportanceSocial needs interventions aim to improve health outcomes and mitigate inequities by addressing health-related social needs, such as lack of transportation or food insecurity. However, it is not clear whether these studies are reducing racial or ethnic inequities.ObjectiveTo understand how studies of interventions addressing social needs among multiracial or multiethnic populations conceptualize and analyze differential intervention outcomes by race or ethnicity.Evidence ReviewSources included a scoping review of systematic searches of PubMed and the Cochrane Library from January 1, 1995, through November 29, 2021, expert suggestions, and hand searches of key citations. Eligible studies evaluated interventions addressing social needs; reported behavioral, health, or utilization outcomes or harms; and were conducted in multiracial or multiethnic populations. Two reviewers independently assessed titles, abstracts, and full text for inclusion. The team developed a framework to assess whether the study was “conceptually thoughtful” for understanding root causes of racial health inequities (ie, noted that race or ethnicity are markers of exposure to racism) and whether analyses were “analytically informative” for advancing racial health equity research (ie, examined differential intervention impacts by race or ethnicity).FindingsOf 152 studies conducted in multiracial or multiethnic populations, 44 studies included race or ethnicity in their analyses; of these, only 4 (9%) were conceptually thoughtful. Twenty-one studies (14%) were analytically informative. Seven of 21 analytically informative studies reported differences in outcomes by race or ethnicity, whereas 14 found no differences. Among the 7 that found differential outcomes, 4 found the interventions were associated with improved outcomes for minoritized racial or ethnic populations or reduced inequities between minoritized and White populations. No studies were powered to detect differences.Conclusions and RelevanceIn this review of a scoping review, studies of social needs interventions in multiracial or multiethnic populations were rarely conceptually thoughtful for understanding root causes of racial health inequities and infrequently conducted informative analyses on intervention effectiveness by race or ethnicity. Future work should use a theoretically sound conceptualization of how race (as a proxy for racism) affects social drivers of health and use this understanding to ensure social needs interventions benefit minoritized racial and ethnic groups facing social and structural barriers to health.