bluuebunny/crossref_metadata_2025 huggingface dataset:
Brewed for Performance: Caffeine’s Impact on Nutrition, Endurance and Strength in Sports
Authors: Janiszewski Michał , Komorowski Marcin , Kaczorowski Rafał , Hunia Jaromir , Jurek Jonasz , Kapciak Alicja , Górny Julia , Pelczarska Aleksandra , Forenc Tomasz
Published: January 2025

Caffeine is one of the most widely consumed and studied stimulants worldwide with a long history in athletics as a performance enhancer. Although listed as a stimulant in the World Anti-Doping Agency’s (WADA’s) 2024 Monitoring Program, its use is not prohibited. Individual responses to caffeine vary widely due to factors like genetics, age, and lifestyle habits, such as smoking and diet.
This paper examines caffeine's multifaced role in human metabolism, with an emphasis on athletes' training (endurance and strength) and post-exercise recovery.
Our comprehensive review of literature indicates that caffeine typically ingested one hour before exercise in doses around 3-6 mg/kg raises metabolic rate, increases free fatty acids mobilization, extends time to exhaustion in running and cycling, improves maximal voluntary contraction and enhances high-speed muscular activity with low-load movements. It also blocks pain perception. These findings highlight caffeine’s role in endurance and strength sports. However, due to inconsistencies, further research is needed to develop exercise-specific protocols considering dose, timing, and training status.
Caffeine aids recovery by reducing delayed - onset muscle soreness, improving glycogen resynthesis, and reducing fatigue. However, late consumption may affect sleep, requiring careful timing and dosage adjustments. Moreover, potential side and positive effects of caffeine ingestion need to be considered.
Exploring Applications of Lagrange’s Equations in Technology: A Systematic Literature Review
Authors: Damayanti Fitria Siska , Noviana RA Sania , Lestari Yora Inda , Akhsan Hamdi , Ismet Ismet
Published: January 2025

Lagrange's equation is a formula in analytical mechanics used to solve problems with physical system dynamics. It allows mathematical modeling to simplify complex mechanical problems by changing the coordinate system, thus providing a deeper understanding of motion. In this research, a literature study was conducted using the Systemic Literature Review (SLR) method from 30 data sources, 24 of which were indexed by Scopus. A total of 11 articles have been reviewed with a focus on the application of Lagrange's equation in various technologies. The review results show that Lagrange multipliers provide a powerful tool for optimizing energy flow within complex smart grids. The benefits extend beyond smart grids. Lagrange's equations are a powerful mathematical tool applicable to various engineering challenges that involve finding optimal solutions under constraints.
Analysis of The Effect of Changes in Thickness and Infill Density of Thermoplastic Polyurethane and Polyethylene Terephthalate Glycol Materials as a Radiological Phantom
Authors: Yunianto Mohtar , Cari Cari , Sari Arum Putri Kurnia
Published: January 2025

Phantoms are used to research image quality and the amount of attenuation as an organ simulation. If done in the human body, it would be hazardous. High radiation exposure can damage cells. Therefore, the phantom is made to resemble the properties and characteristics of a tissue so that the absorbed dose value can be analyzed according to the tissue in the organ. One use of 3D printing technology is in making phantoms. Radiology phantoms must have the same characteristics as human body tissue. This research varies the thickness and infill density of the phantom to get the suitable phantom based on material density, CT number, electron density, and effective dose. The materials used are Thermoplastic Polyurethane (TPU) and Polyethylene Terephthalate Glycol (PETG) with thickness variations of 1 cm, 2 cm, 3 cm, 4 cm, and 5 cm, and infill density variations of 20%, 40%, 60%, 80% and 100 %. Based on the test parameters carried out, it was found that changes in thickness did not affect the material density, EDG, EDV, and Z eff of the sample. However, changes in thickness are proportional to the CT number and electron density values. Meanwhile, changes in infill density are proportional to changes in material density values, CT number, electron density, and EDV. However, changes in infill density do not affect the EDG and Z eff values. The values obtained for each parameter are compared with the reference organ. Samples made from TPU and PETG are suitable for lung, muscle, soft tissue, and spongy bone.
Diazo Red B Dye Removal by Electrocoagulation Method using Aluminum Electrode
Authors: Emriadi Emriadi , Refinel Refinel , Khalishah Salwa
Published: January 2025

The removal of diazo red B dye was studied in water using the electrocoagulation method with an aluminum electrode. The study aimed to reduce the presence of harmful diazo red B dyes in the environment and their impact on living organisms. This study was conducted by testing various parameters with specified values. The initial dye concentrations were set at 10, 20, 30, 40, and 50 mg/L, while the electrocoagulation times were varied at 30, 60, 90, 120, 150, and 180 minutes. The initial pH levels were adjusted to 5, 6, 7, and 8. The applied voltages were 2.5, 5, 7.5, 12.5 V, and the distances between electrodes varied at 1, 1.25, 1.5, 1.75, and 2 cm. The study also examined the effects of initial dye concentration on electrocoagulation time, its interaction with pH, and the influence of pH on electrocoagulation time. These parameters aim to determine the optimum conditions for diazo red B removal, as measured by a UV-Vis spectrophotometer at a wavelength of 420 nm. The optimum removal efficiency of diazo red B was achieved with 94.32% for an initial dye concentration of 30 mg/L, 94.13% for an electrocoagulation time of 180 minutes, 96.00% at a pH of 6, 95.32% for a voltage of 7.5 V, and 95,75% for an electrode distance of 1.5 cm. Additionally, the efficiencies were 99.5% for concentration relative to time was 99.5%, for concentration relative to pH was 97.85%, and for pH relative to time was 96.00%. Additionally, the coagulant analysis of the electrocoagulation results was carried out using FTIR and morphological analysis of the surface of the damaged aluminum anode using an optical microscope.
Minoritized but Not Monolithic: Uncovering Complexities at the Intersections of Teacher Stress, Race, and Ethnicity
Authors: Dillard Jendayi B. , Lambert Richard G. , Fitchett Paul , McCarthy Christopher J. , Mosley Kristen C. , Blaydes Madison
Published: January 2025

Abstract: Demographic factors have been implicated in teachers’ experience of work-related stress and occupational wellbeing. Specifically, teacher-student racial congruence has previously been associated with teachers’ risk for experiencing stress, job satisfaction, and workplace fatigue. Questions remain as to the extent to which these effects may be related to a number of teacher-, classroom-, and school-level factors. In order to address this limitation, this study applied propensity score matching procedures to the National Center for Education Statistics’ 2015–16 National Teacher and Principal Survey, in order to examine 7,540 secondary teachers’ occupational stress indicators in racially and ethnically congruent and incongruent school settings. Results showed that White teachers appraised higher risk for experiencing stress in racially incongruent schools, while Black teachers appraised higher risk for stress in racially congruent schools. Hispanic teachers appraised similar risk for stress in ethnically congruent and incongruent settings. Policy implications are discussed.
The Wisdom of Youth: Reconsidering Secondary Students’ Racial Literacies
Authors: Castro Eliana
Published: January 2025

Abstract: In this paper, I examine what one focus group interview may reveal about five teenagers’ burgeoning racial literacies. After analyzing their definitions and interpretations of historical and contemporary racism, I argue that these youth have developed racial literacies that reflect a narrow societal focus on the individual, interpersonal dimensions of racism. Far from being racially illiterate, many young people have accurately “read” the racial silences in their schooling and interpreted the racial experiences that they and their loved ones have endured. I explore how instructional supports could help students articulate the more complex and enduring understandings of structural and/or institutional racism that amount to critical racial consciousness. This focus group also attests to high school students’ desire for formal learning about institutional racism earlier and illustrates factors that may influence how Black, Indigenous, Latinx, and Asian American youth express themselves about race and racism.
Tinkerers, learning organisations and sustainable innovation
Authors: Wilmott Deirdre
Published: January 2025

The contribution of the lone ranger educator who tinkers with applications, testing discarding and working haphazardly around systems, should be seriously considered. Whilst learning organisations want to be perceived as dynamic structures that recognise and support innovation in curriculum and teaching practice they cannot responsibly incorporate every technical change, new invention or application, and idea into their curriculum.
Collaborative teams concerned with responsible sustainability, should not be subjecting their ideas to natural selection. Before ideas can be disseminated through collective teams, there needs to be a diffusion of originality, innovation and thought between members of teams, and this frequently stems from the very tinkerers whose willingness to take risks and fail with new technologies is often regarded as inefficient and contradictory to organisational development.
 
As learning organisations embed open source and community developed software, they are finding themselves enmeshed with systems that are never complete and always being changed as the Internet magnifies the opportunities for tinkerers to adapt applications.
When learning organisations embrace the open source option instead of using proprietary licences, they too have an obligation to support and participate in the development. This development is often done within a community that exists without concerns for sustainability and responsibility but uses an adaptive process of natural selection. An important way in which they can respond to this obligation is to provide an environment where lone rangers tinkering in the developmental role of resources can function.
Making sense of learning design
Authors: Westberry Nicola
Published: January 2025

Large classes seem to be a permanent fixture in tertiary education, often necessitating the use of multiple teachers to design and enact learning activities with many students. Within these multi-teacher learning environments, there is a need to gain a deeper understanding of the ways teachers make learning designs meaningful through their pedagogical beliefs. Employing the terms “design-for-use” and “design-in-use” (Folcher, 2003, p. 647) to draw a distinction between planned and enacted design, this paper reports on a qualitative study that followed the experiences of three teachers in a blended tertiary-level business writing course. The findings suggest that the teachers related to the same learning design in differing and conflicting ways, revealing the relative nature of “pedagogical sense-making” (Goodyear, Markauskaite, & Kali, 2010, p. 16), and paving the way for a more extensive discussion of co-teaching within ICT-supported learning environments.
MUVEing slowly
Authors: Tanti Miriam , Kennedy-Clark Shannon
Published: January 2025

This paper presents the research theory and design of a work in progress that investigates how the application of slow pedagogy can be applied to an ICT rich educative environment. More specifically, the research will focus on an inquiry learning strategy within a scenario-based multi-user virtual environment and will evaluate the impact of such a strategy in terms of student interaction and engagement with a complex inquiry problem. The research proposes that by applying the philosophies of slow to the learning experience and permitting students to explore a problem space, without the rigid structure normally encountered in inquiry learning, that students will not only be more motivated and engaged, but the result will be the acquisition of a greater depth of knowledge and the procurement of transferable inquiry skills.
Technology leadership
Authors: Tan Seng-Chee
Published: January 2025

This paper uses a grounded theory approach to derive key findings from 12 empirical studies on technology leadership. Roles of technology leaders were identified and categorized into four main areas of change: infrastructural, organizational structure and policy, pedagogical, and cultural change. Relationships between technology leadership and other factors were reported: School technology leadership is a strong predictor of the level of technology use in schools; the cultural and structural characteristics of schools could affect the level of computer use in classrooms; and transformational leadership is correlated with the principal’s ICT competencies. Issues related to technology leadership and recommendations for future research are discussed.
The emergence of social networking through the communal annotations of an e-book system
Authors: Richardson Joan , Smith Ross , Lenarcic John , McCrohan Rod , O’Hare Ryan
Published: January 2025

Work-in-progress is reported, taking a case study approach to investigate the delivery of an e-book which is constructed based upon the customisation of an existing Pearson Education text. Of particular interest is that the customisation will include a capability for dynamic highlighting and annotating of the e-book text to reflect activities stipulated in the course guide, and to facilitate interchange between students and the lecturer and between students and their student colleagues - a form of social networking. The data collection and evaluation of the impact of the e-book will provide insights into a number of aspects including: learning resource uptake; effectiveness of the resource suite components; and the means of staff instruction to students as facilitated using e-book resources.
Lessons in designing sustainable mobile learning environments
Authors: Loke Swee-Kin , Lokman Mark , Winikoff Michael , McDonald Jenny , Wass Rob , Purvis Maryam , Zeng Richard , Matthaei Christoph , Vlugter Peter
Published: January 2025

There has been an increase in mobile learning projects reported in scholarly conferences and publications. Our project consists of investigating the integration of mobile learning into an undergraduate Zoology module in which students undertook research projects in groups. In this paper, we report on students' adoption rate of the mobile learning option and their perceptions of its utility, with the aim of informing the design of sustainable mobile learning environments. Few students made use of the mobile learning infrastructure because existing means were preferred and mobile learning was perceived to be irrelevant for the learning task.
Positive Partnerships website
Authors: Kilham Chris
Published: January 2025

This paper addresses the question: How can we create better access to quality educational practices for those who live and work with students with disabilities and who are also disadvantaged geographically? To explore the notion of multiple disadvantage, a study was conducted to examine the experience of participants who were exposed to an Australian online learning package that has been developed to assist those living and working with students with autism. The government-funded package, called Positive Partnerships, is available nationwide, and includes interactive multi-media learning modules, information, links, discussions and feedback options. In view of the finding that rural and remote education was less available, less accessible, and less affordable than that provided to urban dwellers (Human Rights and Equal Opportunity Commission, 2000), this study examined feedback from an online survey, with particular attention to comments made by those with disabilities and /or living in isolated areas. Feedback about the site was extremely positive. Participants valued the features that embodied universal design and maximised time efficiencies and convenience. To exploit the benefits of this form of online learning, four challenges were identified: promotion of the site; balancing multimedia against computer capacity; addressing local issues through a national site; and maintaining the site beyond the funding period. The study concludes that improving access to education by augmenting face-to-face training with online learning for those in isolated areas will not eliminate their hidden disability costs, but it will go some way to meeting their educational needs in a more equitable way.
Teacher transformation with eLearning experiences
Authors: Johnston Shannon
Published: January 2025

Academic development of staff capacity for the use of technology in their practice may be transformative towards new pedagogies if their training extends beyond skill and capacity with specific technologies to address underlying beliefs of learning and teaching with technology. This paper proposes that focussing on teacher personal practical theories may be a way to enable transformation in teacher practice for realising the potential of quality integration of technologies in teaching and learning. The principle will be explored in an upcoming research study of moments in teacher experience in a flexible learning initiative which created change to their personal practical theories. In this paper, the principle is discussed briefly and the impetus for the study illustrated with samples from two experiences in attempting to integrate teaching with technology.
A scholarship program for academic staff to develop exemplary online learning tasks
Authors: Herrington Anthony , Schrape Judy , Flintoff Kim , Leaver Tama , Molineux Matthew , O’Hare Sheena
Published: January 2025

There is a strong impetus for blended learning approaches to be more widely adopted in higher education but finding an effective model for professional development of teaching staff can be problematic. In 2009, Curtin University developed an eTeaching and Learning Scholarship program for academic staff to develop exemplary online learning tasks that could be shared with the university community and inform future online teaching within their disciplines. This paper describes the design of the professional learning program together with early encouraging results that indicate both the willingness of the eScholars to incorporate additional learning technologies to extend the affordances of the university provisioned systems and to embrace authentic learner-centred tasks.
Getting together out-of-class
Authors: Goodwin Kate , Kennedy Gregor , Vetere Frank
Published: January 2025

This paper presents the results of a study of the way in which university students use technologies for out-of-class interactions. The study investigated the usefulness and usage frequency of technologies such as mobile phones, social networking and email for informal interaction, compared to face-to-face interactions occurring in physical settings. The results seem to confirm that while informal, spontaneous interactions between students were most common face-to-face, some technologies performed a critical supportive role for "just-in-time" information sharing and coordinating face-to-face meetings. However, technology usage was limited due to social barriers that were sometimes exacerbated in technological settings. Building on these results, the study also considered the specific use of technologies for informal learning. Working on the basis that informal interactions are foundational to socially based informal learning, the study explored opportunities for technology use outside of the classroom, for collaborative and educational benefit.
Designing for successful diffusion
Authors: Giardina Natasha
Published: January 2025

The use of learning management systems and other technologies to support teaching and learning in higher education contexts is becoming ever more important, especially as universities move towards increasing offerings to students over the internet. However, as many researchers have found, academic staff engagement with educational technologies has been relatively marginal, with innovations not always diffusing to the majority. In any faculty, staff are likely to have a varying range of technological and techno-pedagogical competencies and differing motivations for using educational technologies and e-learning principles. This paper reviews contemporary research on technology adoption in higher education contexts which has informed the design of a current faculty-based project to address the emerging demands of the twenty-first century higher education landscape by enhancing staff use of technologies for effective teaching and learning.
Teaching first-year studies in religion students in Second Life
Authors: Farley Helen
Published: January 2025

The UQ Religion Bazaar project was originally conceived in 2007 and developed through 2008. It consists of a Second Life island situated in the New Media Consortium educational precinct and boasts a number of religious builds including a church, a mosque, a synagogue, an ancient Greek temple, a Freemasonic lodge, a Zen Buddhist temple and a Hindu temple to Ganesha. The island was used in two large first year classes and for supervising distance postgraduate students.
After a brief introduction to the discipline of Studies in Religion at the University of Queensland, this paper will assess the suitability of using Second Life as an environment for learning based on constructivist methodologies. Further, it will explore the original conception and development of the UQ Religion Bazaar project within Second Life, and outline the preliminary findings of the project.
Using a Learning Design ‘embed’ function to disseminate medical education learning designs
Authors: Dalziel James , Dalziel Bronwen
Published: January 2025

Learning Design seeks to share effective methods for online teaching, such as templates which can be automatically run by Learning Design systems. To overcome barriers to widespread adoption, a new 'embed' function has been developed to allow teachers to view and trial a design from any public webpage – for example, a design can be embedded in a blog post. This new approach has been applied to sharing of designs developed in an ALTC project on medical student training in the scientific basis of medicine during clinical rotations in hospitals. Advantages of the new approach to sharing of medical education designs are discussed, including the ease of sharing designs among those unfamiliar with online Learning Design communities.
Capturing clinical experiences
Authors: Corrin Linda , Olmos Martin
Published: January 2025

The capturing of data regarding medical students’ clinical experiences contributes constructively to the delivery and enhancement of the curriculum. In order to facilitate the capture of this data the University of Wollongong’s Graduate School of Medicine has implemented an online Clinical Log system using an iterative software development process to continually develop and refine the system to provide the most effective tool possible for students and staff. This paper reports on the progress of this project to date and outlines areas of future development and innovation.
Impact of a new curriculum on pre-service teachers’ Technical, Pedagogical and Content Knowledge (TPACK)
Authors: Hu Chun , Fyfe Vilma
Published: January 2025

This paper reports some preliminary findings of a formative evaluation on the impact of a new curriculum on pre-service teachers' technical, pedagogical and content knowledge (TPACK). It discusses the design principles employed and its implementation process. A survey adapted from Schmidt et al. (2009) was administered at the beginning and completion of the course. The post-course survey showed increase in pre-service teachers? self-reported ratings in technology, pedagogy and content knowledge. Implications are discussed.
Is peer assessment of asynchronous group discussions fostering skills relevant to our future graduates?
Authors: Bouchoucha Stéphane , Wozniak Helen
Published: January 2025

The increasing use of peer assessment in higher education institutions, as well as its benefits in term of students’ learning is well documented. Distance education can be fraught with challenges, but creating a community of practice has been proven to increase student engagement and learning. This paper reports on the implementation of peer assessment of online asynchronous group discussions to foster a community of practice and equip future graduates with lifelong skills relevant to their chosen professional path. Through a careful preparation of students, the implementation of the peer assessment process proved beneficial. This paper describes the analysis performed to establish the validity and reliability of the peer assessment process in the context of a 3rd year unit of study of the bachelor of nursing at Charles Darwin University.
The Engineering ‘Hubs and Spokes’ project
Authors: Blackmore Kim , Compston Paul , Kane Lauren , Quinn Diana , Cropley David
Published: January 2025

The emergence of blended course techniques that embrace a combination of face-to-face and online learning environments offers a raft of opportunity for flexibility in education. While much writing has focused on the opportunities for flexibility for the students and teachers, this paper focuses on the opportunities for effective sharing of expertise and effort between institutions.
The Engineering 'Hubs and Spokes' project is a collaboration between The Australian National University and the University of South Australia. It draws on the strengths of each to improve the range and quality of educational opportunities for students. Two components of the project are underpinned by blended courses: sharing of courses at the advanced undergraduate level; and development of an integrated graduate development program.
We describe choices made, benefits identified, and the challenges encountered in the early stages of the project. We discuss recommendations for the future of cooperation in educational design and delivery, and comment on the opportunities that arise for structural reform of the higher education sector.
Learning design for online role play versus simulation
Authors: Wills Sandra
Published: January 2025

One outcome of Project EnROLE, an ALTC project to encourage uptake of online role play, is a refined learning design for simulation: Simulation Triad. The triad represents design decisions according to emphasis placed on Roles versus Problems versus Rules.
Beyond curriculum, technology and transformation for an unknown future
Authors: Willems Julie
Published: January 2025

Many views of fostering student resilience come from the perspective of a set of individual student traits, skill sets, or the lack of ability to 'tough it out', rather than viewing resilience as a holistic entity which involves relationships, community and context. This belief, in turn, disconnects learners from the socio-cultural context in which their learning experience is embedded. These factors can play an equally pivotal role on participation and learning outcomes. This poster proposes a holistic model for understanding student resilience in a time of rapid change in education.
Taking Sociology online
Authors: Symonds Scott , Jamieson Andrew , Bell Avril , Wood Brennon , Ryan Allanah , Patterson Lesley
Published: January 2025

This poster reports an initiative to redesign the teaching of Sociology for the digital age. In 2009, the core of Massey University's Sociology undergraduate major was redesigned to renew the curriculum, clarify student pathways and exploit new digital technology to improve the experience of distance learners. Major goals were to create an engaging and personalised learning environment and to utilise the expertise of a team of staff to broaden the scope and choice of student study. Teacher presence was prioritized as a key element in achieving these goals. The poster reports some of the decisions that led to the design and implementation of extensive rich media materials in efforts to provide a more immediate teacher presence. Qualitative and quantitative student responses to the redesign were gathered via an online survey and these data are helping to inform the delivery and standard for further work that will be ongoing for some years to come.
Collaborative learning among Australasian educators through Online Learning Community (OLC)
Authors: Sari Eunice , Tedjasaputra Adi
Published: January 2025

This poster describes a collaboration initiative being built for educators in Australia and Asian countries using an Online Learning Community (OLC). The main purpose of the initiative was to enhance the professional learning and development of educators in Indonesia. A great number of teachers in Indonesia have been facing a lot of challenges to continually update their professional knowledge and skills due to the facts that they live in remote areas and have limited resources. On the other hand, they are required by society to provide the best education for their students, so the students can become competitive assets in this globalised environment. Starting from this problem, the authors have designed and developed a professional learning framework using Online Learning Community (OLC) that offers flexibility and continuous support for the teachers in Indonesia. The OLC provides a conducive and collaborative environment for the teachers to widen knowledge and exchange information not only with their colleagues, but also other practitioners from all over places in Indonesian archipelago as well as Australia and other Asian countries, like China and Japan.
What do we mean by ICT graduate attributes?
Authors: McGrath Dominic
Published: January 2025

Developing information and communication technology (ICT) skills is embedded in Australian curricula from early primary through to tertiary education. This study examines curriculum documents from introductory university courses in two programmes of study at the University of Queensland, to explore the nature of ICT skills development as students transition to University. The curriculum documents indicate a variety of interpretations of curriculum design and the development of ICT skills. The majority of course objectives mapped to developing effective ICT skills do not explicitly relate to technology and little consistency is evident in the implicitly linked aspects and uses of ICT, raising further questions as to what ICT skills institutions refer to in outcomes statements.
Off the beaten path with ePortfolio & virtual conferencing
Authors: Kirberg Anja
Published: January 2025

Facing an on-going transformation of classical research strategies and current occupational profiles due to an increasing amount of digital sources and tools, students of more traditional humanities need to be taught media-oriented and must develop new online competencies to be set for a successful future path. The blended learning projects “Great Depression online” and “Sociology of Education Intercultural” give an example of how the flexible usage of ePortfolios and virtual conferencing can broaden each student’s mind.
To enhance traditional history teaching means to adopt new methods in doing research, in distributing findings and teaching regarding the increasing amount of digital written, oral and visual sources. “Great depression online” demonstrates how the usage of ePortfolio and virtual conferencing can offer intercultural learning experiences by teaching history-specific questions such as source criticism of digital documents within a blended learning setting. The aim is to teach historical online competence to prepare history students for their academic and vocational future.
“Sociology of Education Intercultural” offers students of social sciences a new, intercultural learning experience and supports them in developing online competencies within their subject. They practice using online resources and the qualitative method “interview” by using ePortfolio and virtual conferencing. An international peer-review also is offered by the use of virtual conferencing.
Evaluating cybergogy
Authors: Collins Lyn , Huber Elaine , Groom Dean
Published: January 2025

This poster presentation will outline the background and current findings of an action research project which investigates the use of wikis in a Higher Education setting. The objectives of the project are to improve student engagement by providing them with well- researched and evaluated wiki-based assessment tasks. The Cybergogy instructional design model (Wang and Kang, 2006) which incorporates social, emotive and cognitive factors is used to iteratively work with three academics across business, science and humanities faculties, on six iterations of wiki-based tasks.
Crossing boundaries and creating new spaces through an integrated academic literacies project
Authors: Bharuthram S.
Published: January 2025

This paper reports on a study based on a project involving a collaborative partnership between an academic literacy lecturer, an information literacy expert, an e-learning instructional designer and an HIV/AIDS expert. The rationale for forming a partnership was to include library information literacy and e-learning into an academic development (AD) course which is offered to students from the Faculty of Health Sciences at a Higher Education Institution in South Africa. The subject material used was based on HIV/AIDS topics that students had to debate within an online discussion forum. The aim of the study was to ascertain whether an integrated approach enhances the learning experiences of students and to evaluate the role of the different collaborating partners, as well as to assess the logistics of working together in a partnership with stakeholders from different sectors of the university community.
Teaching and learning in Virtual Worlds
Authors: Farley Helen , Gregory Sue , Ellis Allan , Crisp Geoffrey , Grenfell Jenny , Thomas Angela , Campbell Matthew
Published: January 2025

Educators have been quick to spot the enormous potential afforded by virtual worlds for situated and authentic learning, practising tasks with potentially serious consequences in the real world and for bringing geographically dispersed faculty and students together in the same space (Gee, 2007; Johnson and Levine, 2008). Though this potential has largely been realised, it generally isn’t without cost in terms of lack of institutional buy-in, steep learning curves for all participants, and lack of a sound theoretical framework to support learning activities (Campbell, 2009; Cheal, 2007; Kluge & Riley, 2008). This symposium will explore the affordances and issues associated with teaching and learning in virtual worlds, all the time considering the question: is it worth the effort?
Do online activities inspire students in the science disciplines? Engaging students in learning science with online activities
Authors: Crisp Geoffrey , Elliott Kristine , Hoban Garry , Nott Michael , Rifkin Will
Published: January 2025

This symposium will draw together the work of several authors and practitioners who have investigated various approaches to engaging students in the sciences with online learning activities and e-assessment tasks. Participants will engage in debate and discussion on the affordances of the online environment, the nature of science education and what evidence we have that the online environment is appropriate and effective in engaging all students in learning in the sciences.
Analysis of gradual diameter thrombectomy stent in vitro
Authors: Shen Caifeng , Ma Zhenjian , Li Hong , Wei Ming
Published: January 2025

Objective

To analyze the effect of gradient thrombectomy stent in vitro.

Methods

The cerebrovascular fluid circulation model was made and fixed on the test table. About 0.9% sodium chloride injection was injected to the vascular model through a miniature water pump to circulate it. Four kinds of thrombus products containing different red blood cell (RBC) volumes of 0, 5, 40, and 80% were placed at the target location as thrombus. Each type of thrombus was removed five times using SOLITAIRE stent and gradient thrombectomy stent. The thrombectomy effects were observed by comparison of the two types of stents.

Results

Thrombus containing 80% volume of RBC escaped thrombus fragments during thrombectomy with both stents. Thrombus containing 0% volume of RBC (rich in fibrin) had poor chimerism with stents. In the thrombus containing 0% RBC volume, there was no statistically significant difference between the two stents (p = 1). Thrombus removal was successful in all cases.

Conclusion

The gradient thrombectomy stent is as effective as the currently used thrombectomy stent in vitro studies, and there is much room for improvement.
МАСШТАБНЫЕ ФАКТОРЫ В ГЕОМЕХАНИКЕ
Authors: АМУСИН Б.З.
Published: January 2025

Рассмотрены ограничения традиционных методов классификации массивов горных пород. Предложена модификация условия прочности Хука - Брауна, в котором прочность на сжатие массива горных пород представлена в явном виде. Подход к оценке этой прочности сделан на основе обобщения результатов экспериментов Кима на моделях блочных структур из эквивалентных материалов. Описан подход для определения масштабных факторов прочности, модуля деформации, ползучести и угла внутреннего трения массива горных пород. Введена постоянная ползучести и получены корреляционные зависимости для ее нахождения для четырех типов пород. Установлено, что отношение смещений на контуре выработки к смещениям в зоне пластических деформаций может быть аппроксимировано функцией, зависящей только от угла внутреннего трения. Эта концепция использована для вычисления угла внутреннего трения породного массива на основе анализа полевых измерений. Выдвинуты две гипотезы и сделана попытка их обоснования. Гипотеза A предполагает, что масштабный фактор при подобной структуре массива зависит от прочности на сжатие, причем меньшие значения масштабных факторов характерны для прочных и хрупких пород по сравнению с пластичными породами меньшей прочности. Гипотеза B предполагает, что продолжительность релаксации напряжений и деформаций ползучести растет с увеличением рассматриваемого объема массива горных пород, а скорость деформаций при этом убывает.

The limitations of traditional methods of rock mass classification are reviewed. A modification is proposed for the Hoek-Brown failure criterion, with the compression strength of rocks presented in an explicit form. An approach to the compression strength assessment is taken on the ground of generalized results obtained by Kim in experiments with model block structures made of equivalent materials. An approach to determination of scale effects on strength, deformation modulus, creep and internal friction angle is described. The constant of creep is introduced, and the correlation dependences are obtained to find the creep constant in four types of rocks. It is found that the ratio of displacement at the boundary of a mine opening to displacements in the plastic strain zone can be approximated by a function of the internal friction angle only. This concept is used to calculate internal friction angles in rocks from the analysis of field measurements. The author puts forward two hypotheses and makes an attempt to substantiate them. Hypothesis A supposes that a scale effect in similar structure rock mass depends on the compression strength, and weaker scale effects are typical of hard and brittle rocks as against softer and plastic rocks. Hypothesis B supposes that time of stress and strain relaxation increases in a larger rock mass volume while the strain rate decreases.
ПОВЕРХНОСТЬ ПОТЕНЦИАЛЬНОГО СКОЛЬЖЕНИЯ И ТРАЕКТОРИЯ РАЗРУШЕНИЯ КРИТИЧЕСКИХ ЭЛЕМЕНТОВ БОРТА СО СЛАБЫМ ПРОСЛОЕМ
Authors: ЛЮ Ш. , ЧЖАО Х. , ЦЗИН Ш. , ВАН Т.
Published: January 2025

Для угольного разреза Hequ, находящегося в провинции Шаньси Китая, с помощью мониторинга найдено расположение слабого прослоя в массиве борта. С целью изучения механизма скольжения борта со слабым прослоем построена трехмерная численная модель, рассмотрены поверхность потенциального скольжения и критические силовые элементы. Поверхность потенциального скольжения установлена на основе изучения изолиний смещений и максимального приращения деформаций сдвига. Предложен принцип выявления критических элементов массива борта со слабым прослоем. Определен главный критический элемент поверхности потенциального скольжения и траектория динамического разрушения критических элементов.

To investigate the slip mechanism of the slope with weak interlayer, the location of the weak interlayer within the slope was determined by on-site monitoring using the Hequ open pit mine as the engineering background, and a three-dimensional numerical model was established based on this, and the study of the potential slip surface and key units of the slope containing weak interlayer was carried out. The potential slip surface inside the slope with weak interlayers is determined from the perspective of displacement contour and maximum shear strain increment. The principle and method of key unit identification for the slope with weak interlayer is proposed. The initial key unit on the potential slip surface of the slope with weak interlayers is identified, and the dynamic breaking path of the key unit on the potential slip surface of the slope with weak interlayers is determined.
РАЗРАБОТКА ТЕХНОЛОГИИ КОМПЛЕКСНОЙ ПЕРЕРАБОТКИ ЭВДИАЛИТОВОГО КОНЦЕНТРАТА
Authors: ЧАНТУРИЯ В.А. , МИНЕНКО В.Г. , КОЖЕВНИКОВ Г.А. , САМУСЕВ А.Л.
Published: January 2025

Разработана ресурсосберегающая и энергоэффективная технология комплексной переработки эвдиалитового концентрата. Установлено, что основные потери ценных компонентов (Zr и РЗЭ) связаны с кеком выщелачивания. Определены эффективные методы и рациональные режимы переработки продуктивного раствора, гарантирующие высокое извлечение Zr и РЗЭ за счет переработки образующегося силикагеля, организации последовательного выделения из продуктивного раствора фосфата циркония и карбонатов РЗЭ. Предложены дополнительные способы регенерации реагентов и схемы закрытия водяных контуров, обеспечивающие итоговое извлечение циркония и редкоземельных элементов из эвдиалитового концентрата. Разработанная технология позволяет получить дополнительную товарную продукцию (метасиликат натрия и аммиачную селитру), а также обеспечивает экономическую целесообразность и повышает экологическую безопасность переработки эвдиалитового концентрата за счет регенерации карбоната кальция.

The authors developed a resource-saving and energy-efficient technology for integrated processing of eudialyte concentrate. It is found that the main losses of valuable components (Zr and REE) are associated with leaching cake. The effective methods and modes of processing of pregnant solution are determined to ensure high recovery of Zr and REE owing to conversion of silica gel and thanks to successive extraction of zirconium phosphate and rare earth carbonates from pregnant solution. The proposed complimentary methods of regeneration of reagents and shutting off of water circuits ensure recovery of zirconium and rare earths from eudialyte concentrate. The developed technology provides additional marketable products (sodium metasilicate and ammonium nitrate), as well as economic expediency and improved ecological safety of eudialyte concentrate processing due to regeneration of calcium carbonate.
Outstanding scientific accomplishment
Authors: Montaser Prof. Laila Mahmoud
Published: January 2025

In recent years, platelet-rich plasma (PRP) rich in growth factors (PRGF) has emerged as a promising autologous biological therapy alternative for use in cosmetic and regenerative medicine. PRGF is a high concentration of platelets extracted from whole blood, and platelet-containing plasma is separated and concentrated from red blood cells by centrifugation. The hundreds of bioactive proteins that make up PRGF, including cytokines, peptides, and growth factors, aid in the healing of skin and soft tissues. PRGF has several attractive features, including tissue regeneration and healing capabilities, the extended release of several growth and differentiation factors from activated platelets, and the lack of immunogenicity problems. Because of its unique biological properties, PRGF has a wide range of clinical uses in regenerative and cosmetic medicine. This paper's main objective is to highlight a fantastic, effective method for treating osteoarthritis (OA) in the knee (KOA). It also highlights the significant influence that our exceptional M.Sc. thesis has had.
Modelling a sacred object using MLS data and non-metric images
Authors: Kwoczyńska Bogusława , Olszańska Sylwia
Published: January 2025

Today, surveying technologies used in geodesy play a key role in the documentation and analysis of objects. The development of surveying techniques has been significantly influenced by improvements in hardware and software for data collection and processing. In addition to traditional methods such as surveying, photogrammetry and laser scanning techniques, which allow much more data to be collected in a relatively short period of time, are being developed at a remarkable rate. These techniques make it possible to create spatial models of objects, on the basis of which a more extensive analysis and the acquisition of technical documentation can be conducted. The study used a mobile laser scanning technique and non-metric images to acquire data to create a 3D model of a historic sacred building. The scanning was performed using a low-cost handheld mobile laser scanner (MLS) equipped with a Livox-Mid360 sensor from MandEye, based on SLAM technology derived from robotics, which was mounted on a bracket and stand made by Ronin. The images were taken using the camera of a Samsung Galaxy M51 mobile phone. The object of the study was the historic wooden church of St. Mark in Rodaki. The object was modelled in the Agisoft Metashape and Cyclon 3DR programs. The created models were compared by creating a differential model in CloudCompare software.
Pensamiento creativo en educación superior: actitudes y habilidades del profesorado universitario
Authors: Marenco David
Published: January 2025

Este artículo plantea el resultado de la investigación sobre el pensamiento creativo para el fomento de proyectos e innovación en la educación superior. El objetivo consistió en conocer las actuaciones del profesorado y los estudiantes en educación superior de la ciudad de Barranquilla. Siguiendo una metodología de enfoque cuantitativo y diseño descriptivo transversal, se aplicó a 150 profesores universitarios una encuesta sobre pensamiento creativo desde las dimensiones cognitivas, del saber hacer, emocionales y el entorno educativo. Los resultados dan cuenta de las falencias de los docentes para promover el pensamiento creativo en el alumnado y el desinterés por conocer sus habilidades creativas y potenciarlas, dejando de lado diseños educativos innovadores y adaptados a las necesidades educativas del alumnado para su vida profesional.