Search Results (23)

Humanity has consumed large amounts of energy in recent decades. Energy requirements increase continuously, and fossil fuel overuse pollutes the environment extremely. The researchers turned their attention to alternative solutions, such as renewable sources of fuels, which reduce negative emissions. At the same time, biodiesel is produced from environmentally friendly raw materials and is a competitive fuel with acceptable properties. The scientific community investigates new approaches to further improve the physicochemical properties of biodiesel in more economical ways. Artificial intelligence and nature-inspired techniques are particularly capable of searching for optimal fuels in complex optimization fields. The current study concerns a recent review of biodiesel production approaches based on evolutionary computation methods. These methods lead to innovative biodiesel development, costing less with lower sulfur content. Except for the economic profits, the reduction of environmental emissions in praxis confirms biodiesel appropriateness for more consumption than fossil blends. The algorithms’ accuracy and effectiveness were evaluated in various case studies and detailed results were offered in every publication. The optimal fuels are produced in laboratories and tested in common engines too. In the literature, there exists a gap in relation to the financial and environmental aspects of biodiesel fuel production, which should also be investigated. Full article

Condition surveys are an important part of the whole scientific research of torso buildings, which we understand to be buildings with usually missing roofs, wooden ceilings, doors, windows, and other envelope constructions along with damaged internal and external infrastructure and surfaces. The aim of the processed condition surveys is to gather basic data on the technical state of the buildings. Torso buildings are, in our environment, especially the ruins of castles and manor houses, but also some churches, the remains of industrial enterprises, or even others. The proposed condition surveys can be used at any of them, not only in our country, but also in any other country of the world. The processed system of condition surveys allows us to anticipate further damage to architectural heritage buildings caused by their aging. It can contribute in a major way to the identification of eventual construction risks and to anticipate them. Condition surveys are designed as a quick, cheap, and easy to handle way to gather the basic overview needed for undertaking a basic stabilization of the most endangered parts of the ruins. In the next step, further scientific research using instruments i.e., in laboratories, can be undertaken. It is also important to know which parts of the torso buildings are dangerous and can endanger not only visitors, but also scientists realizing research on site. The first goal of the project focused on bettering of the stability of the torso buildings, especially ruins of castles, which was granted by the Slovak Ministry of Culture to elaborate and prepare a system for the identification of the most endangered parts of the ruins, which are in danger of dilapidation soon. The second goal was focused on preparing source material for further scientific research of the torso architecture. Experts from the Faculty of Civil Engineering of the Slovak University of Technology, with the cooperation of experts from praxis and from the Architectural Heritage Protection Office prepared a system for judging the construction details of torso buildings from the point of view of their construction–technical state. The aim of this judging lies in identifying the parts of their constructions that are most endangered by decay. Based on the condition survey results, conservation activities can be organized to save valuable details of the torso buildings before destruction and to protect the visitors of such localities before injuries, maybe even tragic injuries. Full article

Over the years, the field of forensic anthropology has become more diverse, bringing unique perspectives to a previously homogeneous field. This diversification has been accompanied by recognizing the need for advocacy and activism in an effort to support the communities we serve: marginalized communities that are often overrepresented in the forensic population. As such, forensic anthropologists see the downstream effects of colonialism, white supremacy, inequitable policies, racism, poverty, homophobia, transphobia, gun violence, and misogyny. Some argue that advocacy and activism have no place in forensic anthropological praxis. The counterarguments for engaging in advocacy and activism uphold white, heterosexual, cisgender, and ableist privilege by arguing that perceived objectivity and unbiased perspectives are more important than personally biasing experiences and positionality that supposedly jeopardize the science and expert testimony. Advocacy and activism, however, are not new to the practice of anthropology. Whether through sociocultural anthropology, archaeology, or other areas of biological anthropology, activism and advocacy play an important role, using both the scientific method and community engagement. Using a North American approach, we detail the scope of the issues, address how advocacy and activism are perceived in the wider discipline of anthropology, and define ways in which advocacy and activism can be utilized more broadly in the areas of casework, research, and education. Full article

In 2022, the authors of this paper were awarded with three years’ government funding to support seventy-five English schools and Further Education colleges with the running of their own Action Research for inclusion and special educational needs projects (ISEND). Based on the funder’s interest in the identification and scaling-up of the evidence-base for SEND practice, this reflective account analyzes the evidence-base drawn upon and created by the Action Researchers for ISEND and the efficacy of the approach. Adopting an interpretivist, qualitative approach to content analysis, this paper analyzes data from the first seven completed Action Research for ISEND projects. Aligned with Dewey’s scientific model of reflection, analysis shows the Action Researchers for ISEND draw upon a complex synthesis of contextualized understanding, broadened horizons (including collaborative working and study), deepened and/or reshaped understandings, and data analysis to form their theorizations of praxis. Bearing no relation to evidence-based practice, the Action Researchers for ISEND adopt a constructivist ontology towards the inclusion of children with SEND, which challenges positivistic paradigms of “what works” in SEND and embeds a praxis of democracy which frequently includes the voices of learners with disabilities in decision making processes. Full article

The mechanisms of action of allergen-specific immunotherapy (AIT) are often referred to as the induction of ‘tolerance’. However, immunological ‘tolerance’ is defined as an alteration in the function or composition of immune cells. For AIT, this is not always the case, because it can also induce allergen-specific IgG antibodies that block allergic responses. To include all possible mechanisms that may mediate successful AIT, it is advantageous to use the scientific term ‘unresponsiveness’ instead of ‘tolerance’. In praxis, the term ‘vaccination’ is also appropriate, as AIT medications are specialized vaccines. Full article

Entrepreneurship education, as an emerging scientific field, has undergone significant evolution at the conceptual and praxis levels. The concept of entrepreneurship was considered from a broad perspective as the capacity to act upon opportunities and ideas, thereby creating social, cultural, or financial value in diverse contexts. The study and cultivation of this competence are highly relevant to enhancing employability and equipping young people with the skills, knowledge, and attitudes necessary within an entrepreneurial culture for the exercise of active citizenship. This study aims to consolidate the concept and analyse the pedagogical approaches in entrepreneurship education, particularly focusing on experiential learning. It also explores the most frequently used instructional methods in higher education programmes. The research is based on a comprehensive literature review, complemented by a case study of the entrepreneurship education programme implemented at the University of Lisbon, in Portugal, enriched by data collected from one of its curricular units. Experiential learning emerges as a valid approach in entrepreneurship teaching, especially when teachers effectively combine practical experience with theory while learners assume the shared responsibility of learning from experience. As the most recommended instructional methods, one can point to collaborative pedagogical models, namely problem-based learning, project-based learning, peer assessment, design thinking, formative feedback, service learning, and active methodologies that integrate digital technologies. Full article

This article expresses the importance and theoretical viability of Black religious communities reflecting on armed struggle as an option in their pursuit of liberation. African Americans have wrestled with various perspectives on what forms of resistance to white supremacy were religiously legitimate and those that were deemed practical. From moral suasion, immigration, a Black separate state, to violent resistance, Black people in the United States have debated these perspectives and have charted paths forward that continue to be accompanied by Black suffering and death at the hands of racists to the present day. While moral suasion has obtained a hegemonic place in mainstream Black political discourse, violent resistance has often been characterized as both religiously illegitimate and impractical. However, by using concepts from Afrofuturism and traditional African religion, the author will present Denmark Vesey as a model for contemporary Black religio-political thought. Using the themes of “past future”, time travel, resurrection, reincarnation, trance, and conjure, the author grounds himself in an African-centered epistemology that transcends the limitations of the Eurocentric model limited only to scientific “reality”. The author claims that by conjuring Vesey’s revolutionary interreligious Pan-African approach, it will provide more options for Black religio-political theory and praxis. Full article

This article puts forward the core argument that a pedagogical shift is very much needed if we want to address the challenges and capitalize on the opportunities represented by increasingly diverse educational settings and move towards a more inclusive, equal, and just academia. First, it is suggested that we replace the current pedagogical models in use, namely, the teacher-centered and student-centered models, as their educational philosophies are insufficient and can be considered, to a certain extent, oppressive. Then, it is argued that transformative pedagogy can broaden the scope of academic goals by including students’ well-being, as well as their individual and collective emancipatory goals. To support the argument, the author presents a theoretical framework that has been developed over time while teaching migration topics to students coming from all over the world. The framework includes a holistic approach rooted in transformative pedagogy, which engages with students’ cognitive, practical, and affective dimensions. It is further argued that the theoretical framework should integrate intersectional and decolonial approaches into its praxis. These approaches offer further insights into how to challenge power imbalances in the classroom, center the experiences and voices of marginalized communities, and recognize the interplay between individual experiences, systemic oppressions, and the broader socio-political context. The article concludes by explaining that transformative pedagogy has not yet received the attention it deserves, both in practice and in research, and that more efforts need to be made to explore its potential and scientific relevance. Full article

Rolf Zerfass’s operational scientific model for correcting Christian-ecclesiological praxis has been utilised in practical theological research for a considerable time at the North-West University. However, this situation changed with the adoption of Richard Osmer’s four practical theology tasks of descriptive, interpretive, normative, and pragmatic as the guiding practical theology approach. The question is this: to what extent does the Osmer approach and its application in research at NWU address African contextual issues? To progress beyond being ‘reactive’ and ‘pushing back’ on Western practical theology approaches, the NWU practical theology approach is evaluated, followed by proposing an approach that attempts to incorporate African contextual realities anchoring by the principles of ‘listening, observing, weaving, and offering’. Full article

Design has usually been linked to art and applied in scenarios related to everyday life. Even when design has, on occasion, made its way into the world of academia, it has always been closely linked to art and scenarios related everyday life. At last, however, the idea of design has reached the field of epistemology: an area within the very heart of philosophy that has always focused, in theory, on the foundations of knowledge. Consequently, design is being studied from different approaches interested in the foundation of knowledge, theoretical and practical. This is one of the reasons why abduction and pragmatism have been considered relevant from a design perspective. This paper first shows the main features of abduction and pragmatism, describes their evolution and considers their mutual implications. Second, the epistemology of design is analysed considering its most relevant characteristics. Third, the connection between abduction and, on the one hand, pragmatism and, on the other, design epistemology is addressed. Finally, the role of abductive inference in grounding a real epistemology for design theory from the naturalised cognitive perspective of abduction is outlined. The central proposition is that this approach is essential as a methodological innovation, as it allows us to analyse both the inquiry process and the design process as interdependent when dealing with practical problems of a social and cultural nature. This approach allows us to analyse how human actions determine changes in the theoretical framework from which we make our inquiry. In short, the world is an open-ended project that humans design through our daily inquiry. Full article

The Brazil nut (BN) is a promising food due to its numerous health benefits, but it is still necessary to systematically review the scientific evidence on these benefits. Thus, we examined the effects of regular BN consumption on health markers in humans according to the health state (with specific diseases or not) of the subjects. PubMed, Embase^®, and Scielo databases were used to search for clinical trials. The PRISMA guideline was used to report the review, and the risk of bias for all studies was assessed. Twenty-four studies were included in the present review, of which fifteen were non-randomized. BNs were consumed in the context of a habitual free-living diet in all studies. Improvement in antioxidant status through increased levels of selenium and/or glutathione peroxidase activity in plasma, serum, whole blood, and/or erythrocytes was observed in all studies that evaluated antioxidant status, regardless of the health state of the sample. In addition, healthy subjects improved lipid markers and fasting glucose. Subjects with obesity had improvement in markers of lipid metabolism. Subjects with type 2 diabetes mellitus or dyslipidemia improved oxidative stress or DNA damage. Subjects undergoing hemodialysis benefited greatly from BN consumption, as they improved lipid profile markers, oxidative stress, inflammation, and thyroid function. Older adults with mild cognitive impairment improved verbal fluency and constructional praxis, and controversial results regarding the change in a marker of lipid peroxidation were observed in subjects with coronary artery disease. In conclusion, the benefits of BN consumption were found in different pathways of action and study populations. Full article

As a form of scientific enquiry, feminist research aims to produce knowledge that is decentred from, as well as decentres, androcentrism. It also establishes challenges that send us back to methodology and how we produce knowledge. Feminist research on sexual violence proposes a number of methodological challenges that open new paths for exploration: integrating intersectionality into research; reflexivity as a criterion of rigour; the development of research techniques that respect the voices and practices of women as active agents; and the role of emotions in research. In order to analyse to what degree methodological challenges are being met and what work is still to be done, we reviewed various Spanish studies (published between 2015 and early 2022) that used a feminist approach to research sexual violence. Subsequently, using illustrations from two studies we have implemented, we outlined how critical pedagogy can make an important contribution to the methodological challenges of feminist research in this field. The article proposes that a closer relationship between socio-educational praxis (critical methodology) and feminist approaches can contribute to an enrichment and improvement of scientific praxis (feminist methodology), as well as showing how knowledge production can straddle scientific concerns and social intervention. Full article

From the late thirteenth through late seventeenth centuries, a single three-word Latin phrase—sapiens dominabitur astris, or “the wise man will be master of the stars”—proliferated in astrological, theological, philosophical, and literary texts. It became a convenient marker denoting orthodox positions on free will and defining the boundaries of the scientifically and morally legitimate practice of astrology. By combining the methodology of a diachronic historical survey with a microhistorical focus on evolving phraseology, this study argues that closely examining the use of this phrase reveals how debates about the meanings of wisdom, free will, determinism, and the interpretation of stellar influence on human events changed radically across four centuries of Western European cultural and intellectual history. The first half of this article charts the scholastic response to theological criticisms of astrology and the reconciliation of Aristotelian-Ptolemaic cosmology with Catholic theology, paying special attention to its implications for astrology as viewed through scholarly uses of the phrase. The second half of the article shows how the phrase developed a multitude of idiosyncratic meanings in the sixteenth and seventeenth centuries, fracturing its late medieval scholastic unity, as new forms of philosophical, socio-political, religious, and scientific critiques upended astrological beliefs and practices. Ultimately, this paper argues that examining the theory and praxis of astrology through the changing phraseological meanings of “sapiens dominabitur astris” allows historians and cultural anthropologists to better discern the dialectical (as opposed to binary) relationships between free will and determinism in the West. Full article

Oxygen production from air belongs to energy-intense processes and, as a result, possibilities for its decrease are a frequent topic of optimization studies, often performed with simulation software such as Aspen Plus or Aspen HYSYS. To obtain veritable results and sound solutions, a suitable calculation method hand in hand with justified assumptions and simplifications should form the base of any such studies. Thus, an analysis of the study by Hamayun et al., Energies 2020, 13, 6361, has been performed, and several weak spots of the study, including oversimplified assumptions, improper selection of a thermodynamic package for simulation and omission of certain technological aspects relevant for energy consumption optimization studies, were identified. For each of the weak spots, a recommendation based on good praxis and relevant scientific literature is provided, and general recommendations are formulated with the hope that this comment will aid all researchers utilizing Aspen Plus and Aspen HYSYS software in their work. Full article

In order to tap the world wide offshore wind resources above deep waters, cost efficient floating platforms are inevitable. Tension-Leg Platforms (TLPs) could enable that crucial cost reduction in floating wind due to their smaller size and lighter weight compared to spars and semi-submersibles. The continuous development of the GICON^®-TLP is driven by computer-aided engineering. So-called aero-hydro-servo-elastic coupled simulations are state-of-the-art for predicting loads and simulating the global system behavior for floating offshore wind turbines. Considering the complexity of such simulations, it is good scientific praxis to validate these numerical calculations by use of scaled model testing. This paper addresses the setup of the scaled model testing as carried out at the offshore basin of the École Centrale de Nantes, as well as the numerical model for the GICON^®-TLP. The results of dedicated decay tests of the scaled model are used to validate the computational model at the first stage and to determine the natural frequencies of the system. Besides different challenges to the scaled model during the survey, it was possible to take these difficulties into account when updating the numerical model. The results show good agreements for the tank tests and the numerical model. Full article