Search Results (25)

This chapter examines shifting genealogies of knowledge and moral authority in Western Kenya by unsettling the hierarchical opposition between “indigenous” and “scientific” knowledge regimes as ways of knowing and acting. Treating pedagogy as a critical mode of social reproduction, it juxtaposes practices of taboo in the Mount Elgon region, as inherited prohibitions that regulate relations among people, animals, and land, with the deployment of animated educational media in Mumias by Scientific Animations Without Borders (SAWBO) as a technocratic apparatus for imparting new agrarian knowledge and practices. By staging an encounter between these two modes of social knowledge reproduction—both understood as moral technologies that shape conduct, sustain ecological balance, and transmit communal values (one grounded in taboo, the other in technical instruction)—the paper re-situates an “indigenous”/“scientific” inequality within longer genealogies spanning precolonial, colonial, and contemporary postcolonial and developmental formations. By foregrounding commitments to these knowledge traditions, the paper stages how taboos and educational animations alike can embody evolving modes of community self-determination and ethical stewardship. It ultimately argues that the force of the “indigenous < scientific” inequality lies primarily not in correcting its hierarchical opposition but in the ongoing struggle over which modes of life will be allowed to endure. Decolonizing these genealogies requires attending to the marked/unmarked distinctions that structure bodies, discourse, and social reproduction in the present. Full article

Santolina chamaecyparissus L. (Asteraceae), cultivated at the Ghirardi Botanic Garden (Toscolano Maderno, Brescia, Northern Italy) of the University of Milan, was investigated adopting a multidisciplinary research approach: micromorphological and histochemical, with special attention on the secretory structures producing secondary metabolites; phytochemical, with the analysis of the essential oil (EO) composition from the air-dried, flowered aerial parts gathered once per year across two consecutive years (2021 and 2022); bio-ecological, focusing, based on literature data, on the biological activity and ecology of the main EO compounds; didactic–educational, with the ex novo realization of an interpretative apparatus at the study site. Two distinct types of secretory structures were described: biseriate glandular trichomes and secretory ducts, both producing an oleoresin rich in flavonoids. Phytochemical analysis revealed stable EO profiles across the two years with regards to the total number of compounds (39 vs. 40), the main chemical classes (oxygenated monoterpenes (72.67% vs. 78.61%) and monoterpenes hydrocarbons (15.06% vs. 10.48%) and the key single components (artemisia ketone, 52.74% vs. 55.67%; camphor, 13.00% vs. 16.18%). The literature data on the bio-ecology of the main compounds allowed us to confirm antimicrobial, antioxidant, and anti-inflammatory properties. Concerning the dissemination actions, the outcomes of this multidisciplinary work were integrated into a new interpretive apparatus for S. chamaecyparissus at the Ghirardi Botanic Garden. The research results enhance our understanding of this species, supporting its potential EO application in medicine and agriculture. Full article

Modern education is characterized by diversity and the need for extensibility. Educational experimental platforms are rapidly evolving according to these factors. However, software and hardware are provided by major domestic manufacturers, which imposes limitations on the development of teaching materials. We investigate the implementation of a rotational inverted pendulum control system within the NI ELVIS III embedded system. The mathematical model of the rotational inverted pendulum is constructed using Lagrangian equations and then represented in matrix form. Following linearization of the nonlinear state equations, the linear quadratic regulator (LQR) controller of the rotational inverted pendulum apparatus is designed and implemented on the NI ELVIS III embedded system by using LabVIEW graphical programming software. Illustrations are generated to compare the continuous tracking performance of LQR and PID controllers with preset target values. The results are then analyzed to evaluate and contrast the effectiveness of both control strategies in tracking the target values. The findings of this study enhance the development of educational content related to the ELVIS III embedded system’s experimental platform. Full article

(1) Background: Teachers’ visual behaviour in classes has an important role in learning and instruction. Hence, understanding the dynamics of classroom interactions is fundamental in educational research. As mapping evidence on this topic would highlight concepts and knowledge gaps in this area, this systematic review aimed to collect and systematise the analysis of teachers’ visual behaviour in classroom settings through the use of eye-tracking apparatus; (2) Methods: The methodological procedures were registered in the INPLASY database and this systematic review used the PRISMA criteria for the selection and analysis of studies in this area. We searched on six literature databases (B-on, ERIC, ScienceDirect, Scopus, TRC and WoS) between 1 January 2015 and 31 December 2024. Eligible articles used eye tracking apparatus and analysed teachers’ visual behaviour as a dependent variable in the experiment; (3) Results: The main results of the articles selected (n = 41) points to the differences in teachers’ visual behaviour in terms of professional experience and the relationship between gaze patterns and several classroom variables; (4) Conclusions: A deeper understanding of teachers’ visual behaviour can lead to more effective teacher training and better classroom environments. The scientific research in this area would benefit from more standardized and robust methodologies that allow more reliable analyses of the added value of eye tracking technology. Full article

This paper presents a redesign of the MAE 372 Aerospace Structures Laboratory at North Carolina State University (NCSU), incorporating both traditional laboratory demonstrations and an integrated student project to enhance hands-on learning. The redesign aligns with Accreditation Board for Engineering and Technology (ABET)’s emphasis on engineering education that bridges theoretical learning and practical, real-world experiences. In the redesigned laboratory, students participate in four laboratory demonstrations focused on fundamental structural concepts, followed by a student-led project in which they design and test stiffened panels. A new feature of this redesign is the use of a portable test apparatus for three of the laboratories, streamlining the laboratory setup and reducing costs, providing comparable accuracy between experimental results and theory. The paper outlines the structure of the course, the methodology for redesigning the laboratories, and the educational benefits of the new approach. Cost analyses of equipment and materials are also included, making this paper a valuable resource for educators aiming to implement similar lab redesigns. Full article

In this implementation, an innovative and automated measurement and educational-demonstrative resource is proposed that estimates Brewster’s angle and the index of refraction of semitransparent materials. The apparatus, built and programmed with LEGO Mindstorms model Ev3, utilizes a micro:bit board and a machine vision camera (Huskylens cam). This camera detects the intensity extinction of a reflected laser beam at the polarization angle. The Ev3 connection cables and general input/output electronic interfaces have been modified to establish communication with the intelligent brick. Upon completion, the Brewster’s angle and the index of refraction are displayed on the intelligent brick screen. It will also be shown that the percentage error corresponding to the measurement of the refractive index of a glass and acrylic sample is 1.92% and 0.47%, respectively. According to its characteristics, this resource is suitable for use in undergraduate or graduate physics and engineering laboratories/courses. Full article

(1) Background: Spatial cognition (SC) is one of the earliest cognitive domains to be impaired in the course of Alzheimer’s disease (AD), resulting in spatial disorientation and becoming lost even in familiar surroundings as later dementia symptoms. To date, few studies have identified initial alterations of spatial navigation (SN) in the premorbid AD phase by real-world paradigms, and none have adopted an innovative technological apparatus to better detect gait alterations as well as physiological aspects correlated to spatial disorientation (SD). The present study aimed at exploring initial SN defects in patients with prodromal AD via a naturalistic task by using a sensory garment. (2) Methods: 20 community-dwelling patients with Mild Cognitive Impairment (MCI) due to AD and 20 age/education controls were assessed on their sequential egocentric and allocentric navigation abilities by using a modified version of the Detour Navigation Test (DNT-mv). (3) Results: When compared to controls, patients with MCI due to AD exhibited higher wrong turns (WT) and moments of hesitation (MsH) in the DNT-mv, reflecting difficulties both in sequential egocentric and allocentric navigation, depending on hippocampal deterioration. Moreover, they reported more complaints about their SN competencies and lower long-term visuospatial memory abilities than controls. Remarkably, WTs and MsH manifested in the allocentric naturalistic task of the DNT-mv were associated with autonomic nervous system alteration pertaining to cardiac functioning in the whole sample. (4) Conclusions: Naturalistic navigation tests of hippocampal function using a continuous non-invasive monitoring device can provide early markers of spatial disorientation in patients with MCI due to AD. Future studies should develop cognitive remediation techniques able to enhance SC residual abilities in patients at high risk of conversion into dementia and ecological paradigms to be replicated on a large scale. Full article

Ubuntu has been defined as a moral quality of human beings, as a philosophy or an ethic, as African humanism, and as a worldview. This paper explores these definitions as conceptual tools for understanding the cultural, educational, and philosophical landscape of post-apartheid South Africa. Key to this understanding is the Althusserian concept of state apparatus. Louis Althusser divides the state apparatus into two forces: the repressive state apparatus (RSA); and the ideological state apparatus (ISA). RSAs curtail the working classes, predominately through direct violence or the threat of violence, whereas ISAs function primarily by ideology, including forms of organised religion, the education system, family units, legal systems, trade unions, political parties, and media. This paper discusses the link between increasing inequality in post-apartheid South Africa and education, with specific reference to Althusser’s ISAs and the abuse of Ubuntu as a subterfuge for socio-economic inequality. Full article

Thousands of Allied women arrived in occupied Germany after the Second World War as the wives of military and civilian men working in the occupation apparatus. Yet rarely have these women been seen as active agents of occupier power and knowledge. One way of understanding their role, or how it was imagined, is through images and textual representations. With a focus on the early years of occupation (1945–1949) and visual representations of US wives, this article examines the occupation household that was serviced by occupied domestic workers, in turn drawing comparisons to imperial contexts. Visual cues in selected photographs and caricatures suggest a presumed superior occupier modernity that was both performative and educative, mediated by a class-like asymmetrical relationship. These representations have been divided into three key themes: economic modernity, as through consumerism; domestic modernity in the home; and modern gender and family relations. Here, occupier women’s bodies were contrasted against the occupied to signify the power, prestige and modernity of her nation as an occupying power, in turn revealing both the shape of everyday power relations in the home and the paradoxical aims of the occupation itself. Full article

This paper presents a device that converts sound wave frequencies into colors to assist people with hearing problems in solving accessibility and communication problems in the hearing-impaired community. The device uses a precise mathematical apparatus and carefully selected hardware to achieve accurate conversion of sound to color, supported by specialized automatic processing software suitable for standardization. Experimental evaluation shows excellent performance for frequencies below 1000 Hz, although limitations are encountered at higher frequencies, requiring further investigation into advanced noise filtering and hardware optimization. The device shows promise for various applications, including education, art, and therapy. The study acknowledges its limitations and suggests future research to generalize the models for converting sound frequencies to color and improving usability for a broader range of hearing impairments. Feedback from the hearing-impaired community will play a critical role in further developing the device for practical use. Overall, this innovative device for converting sound to color represents a significant step toward improving accessibility and communication for people with hearing challenges. Continued research offers the potential to overcome challenges and extend the benefits of the device to a variety of areas, ultimately improving the quality of life for people with hearing impairments. Full article

The use of blended learning strategies is increasingly common in health sciences, including veterinary medicine; however, there are very few descriptions of these methods being applied to practicals. We describe here the application of blended learning based on the implementation of flipped classrooms with collaborative learning and gamification to the 2020–2021 veterinary medicine gross anatomy practicals at CEU Cardenal Herrera University (Spain). Students prepared for the sessions by pre-viewing videos and taking a quiz before the start. The sessions were conducted in small groups where students learned through collaborative work and reviewed their learning with a card game. A small but significant increase was observed when comparing the scores of practical exams of the locomotor apparatus with those of 2018–2019 (6.79 ± 2.22 vs. 6.38 ± 2.24, p < 0.05), while the scores were similar (7.76 ± 1.99 vs. 7.64 ± 1.92) for the organ system exams. Students’ responses in a satisfaction survey were mostly positive (>80%) regarding the motivating and learning-facilitating effect of this educational method. Our work shows that the application of blended learning in anatomy practicals based on a flipped classroom and with elements of gamification and collaborative work can be an effective way to improve the learning experience of students. Full article

Background: The formation of large accelerations on the head and cervical spine during a backward fall is particularly dangerous due to the possibility of affecting the central nervous system (CNS). It may eventually lead to serious injuries and even death. This research aimed to determine the effect of the backward fall technique on the linear acceleration of the head in the transverse plane in students practicing various sports disciplines. Methods: The study involved 41 students divided into two study groups. Group A consisted of 19 martial arts practitioners who, during the study, performed falls using the side aligning of the body technique. Group B consisted of 22 handball players who, during the study, performed falls using the technique performed in a way similar to a gymnastic backward roll. A rotating training simulator (RTS) was used to force falls, and a Wiva^® Science apparatus was used to assess acceleration. Results: The greatest differences in backward fall acceleration were found between the groups during the buttocks’ contact with the ground. Larger changes in head acceleration were noted in group B. Conclusions: The lower changes in head acceleration obtained in physical education students falling with a lateral body position compared to students training handball indicate their lower susceptibility to head, cervical spine, and pelvis injuries when falling backwards as caused by horizontal force. Full article

Rosacea is a common skin disease that affects about 5% of the general population. Its symptoms include telangiectasia, persistent erythema, burning/stinging sensation, dry skin sensation, and pruritus. It is characterized by a chronic course with frequent exacerbation. It often coexists with anxiety and depression, reducing the quality of life of affected patients. The etiopathogenesis of rosacea is complex and not fully elucidated; hence, there is no causative effective treatment. In this review, we highlight the role of a cosmetologist in the treatment of rosacea and the maintenance of remission. As part of medical treatment, patients are advised to introduce lifestyle changes and use proper skin care; a cosmetologist can help educate patients affected with rosacea, create effective home care programs for skin care, and support them with treatments in beauty salons. Proper skin care is essential, including the use of dermocosmetics, cleansing of the skin, and frequent visits to beauty salons for tailored apparatus procedures. A cosmetologist is more accessible to patients and can help implement healthy daily habits, including skin care and eating habits, as well as support and mediate good communication between the patient and the patient’s treating physician, thereby improving compliance and ensuring long-term satisfactory outcomes. Full article

Firefighters are repeatedly exposed to various pollutants that occur at fire scenes. There are three levels of exposure: primary exposure to pollutants, secondary exposure to pollutants on personal protective equipment (PPE), and tertiary exposure to contaminated fire stations and fire engines due to pollutants on PPE. Therefore, it is important for firefighters to be aware of the risk of exposure to pollutants and to practice health behaviors such as appropriate PPE management. No clear association has been established in the existing literature between firefighters’ risk perception level and their health beliefs about the health impact of awareness of exposure to hazardous substances at fire scenes. This study aims to evaluate the relationship between awareness of the exposure risk to primary, secondary, and tertiary pollutants and health beliefs. It was designed as a cross-sectional study, in which a web-based survey was conducted from 13 May to 31 May 2021. The analysis was conducted in 1940 firefighters working in the Seoul metropolis who agreed to participate in the research. Participants who perceived susceptibility were likely to be aware of the primary (adjusted odds ratio (AOR) = 2.10, 95% confidence interval (CI) 1.16–3.80), secondary (AOR = 2.77, 95% CI 1.77–4.32), and tertiary (AOR = 2.73, 95% CI 1.85–4.03) exposure risks. Participants who perceived barriers were unlikely to be aware of the risk of exposure to primary (AOR = 0.67, 95% CI 0.49–0.91), secondary (AOR = 0.77, 95% CI 0.61–0.96), and tertiary (AOR = 0.75, 95% CI 0.62–0.91) pollutants. Educational intervention is recommended to improve perceived susceptibility and awareness of the risk of exposure to pollutants and reduce perceived barriers. Consequently, educational intervention is expected to positively impact firefighters’ management of appropriate PPE. We confirmed an association between occupational exposure risk and firefighters’ health beliefs. In the health belief model (HBM), health beliefs that affect health behavior also affect awareness of the exposure risk level. Therefore, an intervention for health beliefs can also be used to raise job-related exposure risk awareness. Regular training on the health impacts of fire scenes is necessary for both newcomers and incumbents to enable firefighters to better recognize the risks of each occupational exposure level. Additionally, laws and regulations are necessary for the removal of harmful substances that contaminate PPE, such as self-contained breathing apparatus (SCBA), during exposure to a fire scene. Our research can be used as a basis for improving fire policies and education programs in the future. Full article

Surgical simulation is becoming increasingly important in training cardiac surgeons. However, there are currently no training simulators capable of testing the quality of simulated heart valve procedures under dynamic physiologic conditions. Here we describe a dynamic ventricular simulator, consisting of a 3D printed valve suspension chamber and a model 1423 Harvard apparatus pulsatile pump, which can provide close to physiologic hemodynamic perfusion of porcine aortic roots attached to the valve chamber for education and training in cardiac surgery. The simulator was validated by using it to test aortic valve leaflet repairs (n = 6) and aortic valve replacements (n = 3) that were performed by two trainees. Procedural success could be evaluated by direct visualization of the opening and closing valve, hemodynamic measurements and echocardiography. We conclude that, unlike other methods of simulation, this novel ventricular simulator is able to test the functional efficacy of aortic procedures under dynamic physiologic conditions using clinically relevant echocardiographic and hemodynamic outcomes. While validated for valve surgery, other potential applications include ascending aortic interventions, coronary re-implantation or catheter-based valve replacements. Full article