Fluid Concept Research Articles

The TPACK Physics Learning Video: Forming 21st Century Skills in Physics Learning

Abstract The 21st century learning process in schools emphasizes soft skills. To support the learning process in schools, learning videos are needed that present physics content in a learning process. This article publishes the results of research and development of physics learning videos. This physics learning video presents physics learning in stages that train creativity and critical thinking skills. The physics content is a Static Fluid presented with the TPACK framework. This physics learning video uses Lee & Owens research and development stages. Product feasibility is assessed using a questionnaire by experts. The components assessed are the suitability of physics content, the suitability of the learning process, the suitability of physics learning media on static fluid concepts. Sequentially, it received an assessment of 95.0% for physics content, 98.0% for the learning process, 100.0% for video media. The implementation of TPACK for the learning process in learning video products has made it easier for students to practice their critical thinking skills and increase their creativity.

Leaps in the dark

This study investigates how the desire to ascertain a sense of place for Black, Caribbean diasporic subjects living on Indigenous lands can be pursued through respectful engagement with Indigenous literary art. Although returning to our own ancestral homes may not be possible, I argue, as a diasporic person myself, that it is possible for diasporic subjects to find meaning and belonging on the Indigenous lands of Aotearoa, New Zealand and what is now known as Canada through analysis of works like the bone people by Māori author Keri Hulme and Monkey Beach by Haisla author Eden Robinson. Drawing upon each text’s use of narrative, incorporation of Indigenous language, and depiction of tradition, I develop frameworks towards finding belonging whilst respecting Māori and Haisla lifeways. Both personal experience and textual analysis colour this research, which was spurred by a longing for place as a subject of the Black, Caribbean diaspora. This paper argues that humble engagement with Māori and Haisla knowledges, as elicited by Hulme and Robinson’s novels, can contribute to a greater sense of belonging for such diasporic subjects to decolonizing ends. The paper focuses on place as a fluid concept, the importance of humility when engaging with Indigenous knowledge and practices, and the acceptance of Indigenous education without expectation of mastery. Belonging is not a rigid concept, and this paper is not a guidebook, but a launching pad towards a lifetime of learning, unlearning, change and acceptance.

Medical metaphors in the conservation discourse: insights from critical metaphor analysis

This article explores the use of medical metaphors in conservation discourse, analysing their impact on shaping the concept of conservation through the lens of cognitive linguistics and sociology. Through analysis of 120 papers from the ICOM-CC Theory, History and Ethics Working Group, metaphors such as the conservation object is a human being and the conservator is a doctor were identified. The study reveals how these metaphors frame conservation as a beneficent act of caring for an object, akin to medical treatment. However, it also highlights limitations in explaining stakeholder involvement and community autonomy, the stages of conservation actions, and more nuanced concepts of damage. While this article does not argue against the use of medical metaphors in conservation, it aims to raise awareness of those limitations deriving from the use of complex and fluid concepts in both fields. In conclusion, this study advocates for further research to explore culture-specific features and chronological changes in the use of metaphors to promote a deeper understanding of cross-cultural and inter-generational communications in conservation.

When all you have is a hammer - integration challenges in coastal zone planning

This paper critically examines the evolution of integration as a concept in coastal zone planning through an analysis of Norwegian municipal coastal zone plans spanning a 35-year period. By drawing on the framework of governmentality, we show how the coastal zone and the activities taking place there are being subject to problematizations, rationalizations and technologies for promoting integration. This illustrates how previous spatial dispositions themselves become problematized at later points, giving rise to new rationalizations and new technologies of governing, revealing a dynamic redefinition of integration in response to complex coastal governance challenges. What integration entails is not a given. Instead, it’s a fluid concept, evolving over time in meaning and intent. The paper also shows how ambitions for integrated or comprehensive planning can obscure the purpose of planning and increase complexity. With integration being framed as an undisputed answer to conflicts in the coastal zone, the difficulty of managing the multitude of coastal activities does not lead to a critical discussion on whether ‘integration’ is a fruitful ambition. Instead, it becomes an argument for yet more integrative efforts.

Student nurses experiences of moral distress: A concept analysis.

To understand how pre-registration student nurses experience moral distress and refine the concept in this population. The experience of moral distress has positive and negative effects for health professionals and negatively impacts on patient care. Moral distress is a fluid concept which permits the experience to be varied among different populations. Despite empirical research, a concept analysis has not been performed in the student nurse population. Electronic databases were searched via Ebsco Host Complete and included Cinahl, Medline, APA Psych in March 2024. Search terms included 'Moral Distress' AND 'Student', 'Moral Distress' and 'Baccalaureate.' Search limits included articles between 2014 and 2024, English Language. Twenty-five papers were included in the review and consisted of eight quantitative studies, 11 qualitative studies, three mixed methods studies and three literature/systematic reviews. An integrated mixed research synthesis (Sandelowski, Voils, Barroso 2006) was conducted and organized into Walker, Avant's (2005) framework of antecedents, attributes and consequences. Braun and Clarkes (2006) thematic analysis was then used to generate themes from the literature. Antecedents emerged as students having moral sensitivity, they recognize unethical circumstances. Attributes identified roots of moral distress. These roots include poor patient care, harm to the patient and unsafe care. Students experience of morally reprehensible events is exacerbated by the disempowerment they experience as being 'just a student'. Student nurses who do not exhibit moral courage and do not oppose immoral practices do so due to internal constraints which transpire as fear of conflict, withdrawal of learning opportunities, and fear of disruption to learning. This is influenced by their registered nurse supervisor relationship. Consequences of moral distress identify negative feelings, coping mechanisms and positive effects. The attributes of moral distress in the student nurse population have distinctive features which should be considered by nurse educators and in empirical research. None, as this is a concept analysis that contributes to theory development and is not empirical research.

The Evergrowing Map A Fluid Account on Cartography

Geography and cartography lay in the intersection between two knowledges, namely physics and geometry. In his book La naissance de la physique dans le texte de Lucrèce, Michel Serres shows how geometry – and the consequent static model of reality, on which cartography is traditionally based on – originated from the mechanics of fluid, as fluid was, in the atomistic philosophy, the process of agglomeration and dissolution of things made by atoms. In the last two decades, thinkers like Michel Serres, Tim Ingold, Luce Irigaray and others, have raised awareness on the possibility of conceiving reality on a fluidity based model, in order to better explain the complex, moiré, variety of our experience of the world. In front of the problems raised by the rapid changes happening in the physical and biological realm, the model of the world as a static plane on which object are situated and experienced is no longer sustainable, because it is unable to describe and orient human being between the emerging characters of life on earth. A new sensibility to acquire orientation in the multi-faced and multi-layered world goes hand in hand with the one of a new geographical and cartographical description of physical reality. Through the concept of evergrowing map this article aims to outline a cartographical strategy of orientation through a fluid conception of the world, based on multilayered representations of the territory rooted in multiple relations weaved by human inhabiting the world.

Topological AdS black holes surrounded by Chaplygin dark fluid: From stability to geometrothermodynamic analysis

Implementing the concept of Dark Fluid with a Chaplygin-like equation of state within General Relativity, we construct a new higher-dimensional, static, and spherically symmetric anti-de Sitter (AdS) black hole solution. Energy conditions are explored alongside curvature singularity tools. The inspection at the level of the phase structure and P−v critical behavior is carried out in the context of the extended phase space, where the cosmological constant appears as pressure. Our findings disclose non-trivial similarities between the small/large phase transition of AdS black holes surrounded by Chaplygin dark fluid and van der Waals systems’ liquid/gas phase transition. This analysis offers insights into the physical interpretation of the P−v diagram and identifies critical exponents that reveal the scaling behavior of thermodynamic quantities close to criticality in a universal manner. We finally deepen our understanding of the thermodynamic properties and microstructure of AdS black holes by leveraging the geometrothermodynamic formalism. Specifically, we employ tools, including Weinhold, Ruppeiner, Hendi–Panahiyan–Eslam–Momennia (HPEM), and Quevedo classes I and II. We show that each class of metrics predicts either the physical limitation point and/or the phase-transition critical points, with HPEM and Quevedo formulations providing richer information about the phase transitions. Altogether, this study contributes to advancing our knowledge of the role of Chaplygin gas in General Relativity and thoroughly examining the thermodynamic phase structure of high-dimensional AdS black holes under extreme conditions.

Challenging gender stereotypes: representations of gender through social interactions in English learning textbooks

This study explores the representation of gender through the social interactions presented in four sets of English textbooks used in China. By examining the representation of both gender stereotypes and changing roles, the results reveal that although traditional stereotypes exist in Chinese secondary school-level English textbooks, women’s changing social roles are acknowledged in that they are now beginning to be shown engaging in non-traditional female jobs. However, in family scenarios, women are still depicted as taking sole responsibility for housekeeping duties without any participation from adult males, showing the incomplete transformation of gender roles. No male characters are shown participating in non-traditional jobs, which reinforces the idea of the masculine role being ‘superior’ to feminine or non-masculine roles. The continued presence of gender stereotypes shows textbook editors’ tacit agreement with the gender norms. Drawing on gender as a fluid concept and social interactions of gender, this study acknowledges the variety and diversity of inputs of gender roles through social interactions in the learning community and suggests that students can be given access to a more gender-progressive education by improving the quality of social interactions between genders in textbooks and presenting a more equal view on gender roles.

Locating Indigenous Meitei feminist counterspaces in Linthoi Chanu’s Wari: the (fem)animist prefiguration of Feminist Posthumanities

ABSTRACT This article explores the animist socio-cultural fabric of the Indigenous Meitei community in Manipur, India, to locate the feminist counterspaces embedded within it through a (con)textual analysis of two short stories from the anthology Wari (2019) by the Meitei author Linthoi Chanu. In this exploration, we conceptualize a distinctive praxis of Indigenous Meitei ‘femanimism’ – intertwining Indigenous Meitei feminism with animist philosophies. Furthermore, our discussion illuminates how the Indigenous Meitei ‘femanimist’ praxis, embodying a non-dualistic and relational genderscape, prefigures the emergent Western Feminist Posthumanist theoretical discourses, particularly hydrofeminist and vital materialist concepts of fluid and entangled human embodiment. Accordingly, the present study endeavours to bridge a synergistic conversation between Indigenous Meitei ‘femanimist’ praxis and the contemporary Western theoretical currents of Feminist Posthumanities, aspiring to forge a decolonized feminist vista that transcends hierarchical binaries of gender (man/woman), humanism (human/non-human), and colonialism (the Indigenous as primitive vis-à-vis the Western as modern).

Purging to Cleanse: A Qualitative Study of Ayahuasca Healing at a Drug Treatment Center in Peru.

Ayahuasca, an entheogen from the Amazon rainforest, has garnered growing interest for treating substance dependence. To date, there is little research concerning the act of ayahuasca-related purging (mainly vomiting), which is considered to be central to healing during ayahuasca rituals. This study explored practitioner perspectives on purging during ayahuasca rituals at the Takiwasi Center in Peru. We conducted in-depth interviews with curanderos (healers), plant preparers, and psychotherapists (N = 11) at the Takiwasi Center between August and October 2021. Interviews were conducted and transcribed in Spanish. Interviews were analyzed using a thematic analysis approach. Participants described purging as a fluid concept that went beyond the act of vomiting. Participant narratives around purging were organized into three central themes or accounts: spiritual-oriented, which highlighted the relationship between purging and spiritual development; Amazonian-oriented, which emphasized purging as a cathartic expulsion of embodied cargas (loads) that are perceived to lead to sickness; and clinical-oriented, which stressed that purging generates a range of empirically observable therapeutic benefits. All of these explanatory models emphasized the pivotal interconnection between purging and healing during ayahuasca-assisted treatment for substance dependence at Takiwasi. This study highlights practitioner perspectives on purging at the Takiwasi Center, who offer three main explanatory models for this aspect of healing during ayahuasca-assisted therapy for substance dependence. This research contributes to the limited literature on the role of purging in ayahuasca-related healing, which may inform further investigation into differential understandings of the role of purging for therapeutic benefits.

Queerness—What Would the Queers Do?

In this essay, Sébastien Tremblay explores the potential of queerness as an analytical concept in the context of writing a global history of sexualities. It acknowledges the shift towards transnational and global perspectives in queer history, challenging Eurocentric concepts and promoting inclusivity of diverse sexual identities and experiences. Debuting his inquiry and analysis in Germany, Tremblay highlights the methodological inquiries arising from researching sexual entanglements without relying on fixed categories of analysis. He discusses how queer theory's focus on fluidity and ambiguity can aid historians in avoiding rigid concepts, historical norms, and eventually colonial biases. He therefore concludes by emphasising the importance of engaging with fluid concepts such as queerness in writing an open global history critical of Eurocentrism.

Is it True That My Students don't Understand the Static Fluid Concepts? Rasch Modeling Perspective

Students' conceptual understanding can be analysed using the Classical Test Theory (CTT) and Item Response Theory (IRT) approaches. CTT can only explain students' conceptual understanding at the group level, while IRT can at the individual level. Therefore, this research evaluates students' conceptual understanding using the Rasch model. This research used a survey research type and was carried out in class XI. Students' conceptual understanding was collected using 10 multiple-choice questions on static fluid material. The level of concept understanding was analyzed in stages using Rasch modelling. Understanding analysis begins by analyzing the difficulty level of the questions and then continues with descriptive analysis. The Wright map is used to see the hierarchy between students' understanding of concepts and the difficulty level of the questions used. Finally, a person diagnostic map will be used to see students' understanding of concepts in detail. The analysis results show that students' conceptual understanding is generally in the high and medium categories. Person diagnostic maps have identified patterns of correct and incorrect answers from students that do not reflect their true abilities. So, it is necessary to analyze the exact location of the weaknesses and strengths of students' conceptual understanding. This has implications for the suitability of the learning plan that the teacher will use.

Melatonin administration during the first half of pregnancy improves physiological response and reproductive performance of rabbits under heat stress conditions.

Context Melatonin may have a heat-stress-alleviating role during pregnancy. Aims To investigate the effects of melatonin administration during the first half of pregnancy on heat-tolerance capacity and pregnancy outputs of naturally heat-stressed rabbits. Methods Forty female rabbits were stratified equally into two experimental groups and daily received 1mg melatonin/kg body weight or not (control) for 15 consecutive days post-insemination. Heat tolerance indices, hormone profile, ovarian structures, and fetal loss were determined. Key results Treatment with melatonin significantly decreased respiration rate and rectal temperature, improved concentrations of nitric oxide, and tended to decrease malondialdehyde concentrations (P =0.064) compared to control. Melatonin treatment significantly increased concentrations of high-density lipoprotein, oestradiol, and progesterone compared to control. No significant differences in the numbers of visible ovarian follicles, corpora lutea, and total implantation sites on day 18 of pregnancy were observed between experimental groups. However, melatonin treatment significantly reduced the number of absorbed implantation sites and significantly improved amniotic fluid volume and conception rate compared to control. Conclusions Melatonin administration during the first half of pregnancy can improve reproductive performance of heat-stressed female rabbits. Implications Melatonin can improve fetal survivability via improving heat-tolerance capacity of does and steroidogenesis.

Development of Android-Based Mobile Learning Media Using ADDIE Model on Static Fluid Topics for High School 11th Grade Students

This research and development study aimed to create a mobile learning application based on the Android platform to facilitate the teaching and learning of static fluid concepts. The ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model was employed as the framework for the research methodology. The data collection instruments included validation questionnaires completed by subject matter experts, media experts, physics teachers, and students. These were administered during small-group and large-group trials conducted with 11th-grade science students at MAN 1 Lotim. The end product was an Android-based learning app that received an overall good rating with a total score of 82. Evaluation by media experts deemed it good, with a score of 60 out of a maximum of 75. Physics teachers who validated the app rated it as very good/effective with a score of 52. During the large group trial with students, the app gained a high score of 1759, averaging 4.31 which falls into the very interesting category. Based on the validation results and feedback obtained, it can be concluded that the Android-based mobile learning application developed in this study is suitable, effective, and practical to be utilized as an instructional tool for teaching static fluid concepts to high school 11th-grade students in physics education programs.

Analysis of vortex mixing in passive micromixers with misaligned inlet and rectangular winglets

In the present study, a three-dimensional design of a passive micromixer is proposed which induces the swirling flow pattern by employing the misaligned inlets and winglets. The concepts of fluid stretching and twisting are utilized to improve the mixing efficiency. Stretching is quantified in terms of the modified flow tortuosity parameter. The dependence of various geometrical parameters on flow tortuosity is examined to increase the diffusive mixing by increasing the lateral Peclet number. A detailed analysis is carried out to understand the impact of geometrical features on the vortex formation, propagation, and intensification. Lambda 2 and the helicity approach are used to identify the vortex core region and quantified using a modified swirl number & vortex index. For vortex T misalignment, the aspect ratio 1 along with the staggered common flow-down configuration of winglets is highly effective. For misaligned Y inlet, both interfacial diffusive mixing along with longitudinal vortices at winglets generate highly effective mixing even at a low Reynolds number. For Reynolds number 1 to 70 and channel length 3.5 mm, mixing efficiency above 82% is achieved, and the mixing energy cost is subsequently reduced. A detailed comparative study is done to establish the effectiveness of the present design.

East Asian American cultural essentialism

East Asian American cultural essentialism

The path to Russia’s 2022 invasion of Ukraine: Moscow’s framing of conflict and cooperation with the West under Putin’s rule

ABSTRACT This article explores the relationship between the evolution of Russia’s foreign policy narrative (RN) and the breakdown of its relations with the West. Even though the West is a rather fluid and nebulous concept, it is central to Russian foreign policy and primarily encompasses the EU and the United States (US), but also other countries like Canada, Japan or Australia that are framed by the RN as key supporters of US leadership in the world order. Relations between the West and Russia veered towards conflict and lack of engagement following the start of the Ukraine crisis, with various voices indicating that the world had stepped into a new Cold War. In this article, a curated collection of key interviews and op-eds from the Russian President was coded and examined for frame analysis for the period between the start of 2000 (when Vladimir Putin first became President) to the end of 2021. This study finds that the RN discursively constructs the context within which the Kremlin made the fateful decision to invade Ukraine in February 2022.

Exploring children’s participation from Froebelian practitioners’ perspectives in Scottish context

ABSTRACT Participation has been discussed as a multi-layered concept with varied outlooks on children’s lived experiences. Children’s participation occupies a complicated terrain in that whose participation counts and how it manifests itself within complex adult–child relations are enduring questions in the early childhood field. This qualitative study explored early years practitioners’ perspectives about children’s participation through their Froebelian lenses in the Scottish context. Semi-structured in-depth interviews (n = 14) were conducted online (May 2020–September 2020). As a result of the thematic analysis, three interrelated themes unfold practitioners’ conceptualisations of children’s participation: (i) listening to children’s perspectives, (ii) acting upon children’s perspectives and (iii) active learning and development. The study shows that Froebelian approaches open diverse intellectual spaces for practitioners to consider children’s participation, agency and competency alongside everyday pedagogical encounters. Children’s participation, which was not a common concept in Froebel’s time, is reconceptualised by the practitioners in this research and identified as a substantial but fluid concept in children’s multiple experiences, which is also acknowledged as children’s rights.

DEVELOPMENT OF PHYSICS LEARNING TOOLS WITH GUIDED DISCOVERY MODELS ASSISTED BY INTERACTIVE SIMULATION

This research aims to develop learning tools with Guided Discovery Model Assisted by Interactive Simulation (GDM-IS) on static fluid concepts. This research uses the 4D development method to produce learning tools but only carries out 3 stages, namely Define, Design and Development. At the development stage, validation is carried out on the GDM-IS learning tools that have been developed which include RPP, Student Worksheets (LKPD), Learning Media. Limited trial using a One Shoot Case Study research design. In this design, the learning instruments that have been developed are used in one class as a sample of 38 students. Data on science process skills was taken through observation by two observers. Based on the analysis of the validation results, the assessment of the RPP, LKPD and media is in a percentage above 80% which is in the valid (good) category.

Non-Newtonian Fluid Film Lubrication of Asymmetric Rollers using Vogel Viscosity-Temperature Relationship

A theoretical analysis of asymmetric roller bearing system with cavitation that is hydro-dynamically lightly loaded and lubricated by a thin, in-compressible fluid is presented. The lubricant adheres to the non-Newtonian Bingham plastic fluid concept, in which the viscosity of the fluid should change depending on the mean film temperature. The continuity and momentum equations, which regulate fluid flow, are first solved analytically and then numerically using MATLAB. Through graphs and tables, some key bearing features are addressed and further explained. This leads to the conclusion that there is a discernible difference between Newtonian and non-Newtonian fluids in terms of pressure, temperature, load, and traction. The findings are good in line with the body of literature.