Two postulates concerning observables on a quantum logic are formulated. By Postulate 1 compatibility of observables is defined by the strong topology on the set of observables. Postulate 2 requires that the range of the sum of observables ought to be contained in the smallestC-closed sublogic generated by their ranges. It is shown that the Hilbert space logicL(H) satisfies the two postulates. A theorem on the connection between joint distributions of types 1 and 2 on the logic satisfying Postulate 2 (...) is proved. (shrink)

The theory of nearly orthosymmetric ortholattices generalizes the theory of orthosymmetric ortholattices defined by one of the authors in a previous paper. In this theory, some equations allow one to distinguish complex Hilbertian lattices from real and quaternion ones.

An effect algebra is a partial algebraic structure, originally formulated as an algebraic base for unsharp quantum measurements. In this article we present an approach to the study of lattice effect algebras (LEAs) that emphasizes their structure as algebraic models for the semantics of (possibly) non-standard symbolic logics. This is accomplished by focusing on the interplay among conjunction, implication, and negation connectives on LEAs, where the conjunction and implication connectives are related by a residuation law. Special cases of LEAs are (...) MV-algebras and orthomodular lattices. The main result of the paper is a characterization of LEAs in terms of so-called Sasaki algebras. Also, we compare and contrast LEAs, Hájek's BL-algebras, and the basic algebras of Chajda, Halaš, and Kühr. (shrink)

Two different generalizations of Brouwer–Zadeh posets (BZ posets) are introduced. The former (called pre-BZ poset) arises from topological spaces, whose standard power set orthocomplemented complete atomic lattice can be enriched by another complementation associating with any subset the set theoretical complement of its topological closure. This complementation satisfies only some properties of the algebraic version of an intuitionistic negation, and can be considered as, a generalized form of a Brouwer negation. The latter (called degenerate BZ poset) arises from the so-called (...) special effects on a Hilbert space. It is shown that the standard Brouwer negation for effect operators produces a degenerate BZ poset with respect to the order induced from the partial sum operation. (shrink)

For any unit vector in an inner product space S, we define a mapping on the system of all ⊥-closed subspaces of S, F(S), whose restriction on the system of all splitting subspaces of S, E(S), is always a finitely additive state. We show that S is complete iff at least one such mapping is a finitely additive state on F(S). Moreover, we give a completeness criterion via the existence of a regular finitely additive state on appropriate systems of subspaces. (...) Finally, the result will be generalized to general inner product spaces. (shrink)

Effect algebras (EAs), play a significant role in quantum logic, are featured in the theory of partially ordered Abelian groups, and generalize orthoalgebras, MV-algebras, orthomodular posets, orthomodular lattices, modular ortholattices, and boolean algebras.We study centrally orthocomplete effect algebras (COEAs), i.e., EAs satisfying the condition that every family of elements that is dominated by an orthogonal family of central elements has a supremum. For COEAs, we introduce a general notion of decomposition into types; prove that a COEA factors uniquely as a (...) direct sum of types I, II, and III; and obtain a generalization for COEAs of Ramsay’s fourfold decomposition of a complete orthomodular lattice. (shrink)

This book discusses how rational choice theory grew out of RAND's work for the US Air Force. It concentrates on the work of William J. Riker, Kenneth J. Arrow, James M. Buchanan, Russel Hardin, and John Rawls. It argues that within the context of the US Cold War with its intensive anti-communist and anti-collectivist sentiment, the foundations of capitalist democracy were grounded in the hyper individualist theory of non-cooperative games.

Crucial texts, many available in English for the first time, written before and during the Bolshevik Revolution by the radical biopolitical utopianists of Russian Cosmism. Cosmism emerged in Russia before the October Revolution and developed through the 1920s and 1930s; like Marxism and the European avant-garde, two other movements that shared this intellectual moment, Russian Cosmism rejected the contemplative for the transformative, aiming to create not merely new art or philosophy but a new world. Cosmism went the furthest in its (...) visions of transformation, calling for the end of death, the resuscitation of the dead, and free movement in cosmic space. This volume collects crucial texts, many available in English for the first time, by the radical biopolitical utopianists of Russian Cosmism. Cosmism was developed by the Russian philosopher Nikolai Fedorov in the late nineteenth century; he believed that humans had an ethical obligation not only to care for the sick but to cure death using science and technology; outer space was the territory of both immortal life and infinite resources. After the revolution, a new generation pursued Fedorov's vision. Cosmist ideas inspired visual artists, poets, filmmakers, theater directors, novelists (Tolstoy and Dostoevsky read Fedorov's writings), architects, and composers, and influenced Soviet politics and technology. In the 1930s, Stalin quashed Cosmism, jailing or executing many members of the movement. Today, when the philosophical imagination has again become entangled with scientific and technological imagination, the works of the Russian Cosmists seem newly relevant. Contributors Alexander Bogdanov, Alexander Chizhevsky, Nikolai Fedorov, Boris Groys, Valerian Muravyev, Alexander Svyatogor, Konstantin Tsiolkovsky, Anton Vidokle, Brian Kuan Wood A copublication with e-flux, New York. (shrink)

Bilime ve bilimsel bilgiye yönelik yaygın görüş, bilimin objektif bir faaliyet olduğudur. Bu görüş bilimsel bilginin elde edilmesinde, bilim insanlarının nesnel bir tavır sergilediğini ve onların sosyal faktörlerden etkilenmediğini varsaymaktadır. Yirminci yüzyılın ikinci çeyreğinde, Viyana Çevresi ve Karl Popper’ın düşünceleri ile bilimde sosyolojik ve psikolojik unsurların keşif bağlamı içerisinde görülebileceği, bilimsel kuramların ve araştırmaların gerekçelendirilmesine yönelik girişimlerin ise yalnızca nesnel, epistemik çalışmalardan oluştuğu ileri sürülmektedir. Keşif bağlamı ve gerekçelendirme bağlamı adı altında yapılan bu ayrıma ilişkin iddialar, Thomas Kuhn’un 1962 yılında (...) yayımlanmış olan ‘Bilimsel Devrimlerin Yapısı’ adlı kitabında vurguladığı argümanlar ile sekteye uğramaktadır. Kuhn, sosyal ve psikolojik etkenlerin her iki bağlamda da yer aldığını ifade etmekte ve bu sebeple keşif ve gerekçelendirme ayrımına karşı çıkmaktadır. Bu çerçevede makalede, Kuhn’un ulaşmış olduğu sonuçlar Güçlü Program’ın öne sürmüş olduğu argümanlar çerçevesinde desteklenerek ortaya konulmaktadır. (shrink)

In 2018, the Chinese scientist He Jiankui presented his research at the Second International Summit on Human Genome Editing in Hong Kong. While it was intended that he facilitate a workshop, he was instead called on to present his research in heritable human genome editing, where he made the announcement that he had taken great strides in advancement of his research, to the extent that he had gene-edited human embryos and that this had resulted in the live births of two (...) children. While his research ethic and methodology was interrogated, he insisted that two children, twin girls, had been born healthy and that there was another pregnancy (at the time) where birth of a third gene edited child would be imminent. This announcement generated a ripple effect in the scientific community and exposed the gaps in regulation and absence of law relating to the technology. This resulted in a flurry of activity and conversation around regulation of the technology, which scientists stated was not ready for human trials. This article reviews the Third Summit which was held in London in March 2023 and comments on the latest developments in the regulation of heritable human genome editing. (shrink)

Is capitalism inherently predatory? Must there be winners and losers? Is public interest outdated and free-riding rational? Is consumer choice the same as self-determination? Must bargainers abandon the no-harm principle? Prisoners of Reason recalls that classical liberal capitalism exalted the no-harm principle. Although imperfect and exclusionary, modern liberalism recognized individual human dignity alongside individuals' responsibility to respect others. Neoliberalism, by contrast, views life as ceaseless struggle. Agents vie for scarce resources in antagonistic competition in which every individual seeks dominance. This (...) political theory is codified in non-cooperative game theory; the neoliberal citizen and consumer is the strategic rational actor. Rational choice justifies ends irrespective of means. Money becomes the medium of all value. Solidarity and good will are invalidated. Relationships are conducted on a quid pro quo basis. However, agents can freely opt out of this cynical race to the bottom by embracing a more expansive range of coherent action. (shrink)

In this article, the identification in different civilizations and eras of some cir-umpolar stars as the north pole star are reviewed, the main principles behind and crucial considerations in the past for forming the criteria for north pole star identification are scrutinized, and some profound differences in ancient and medieval views of it are discussed. The point of departure is the identification of the north polar star in Euclid’s Phaenomena as the star HR 4646, and its identification in the Pahlavi (...) Bundahišn and al-Ṣūfī’s Ṣuwar al-kawākib as HR 4893. Because of the inevitable transitory nature of the north pole star, the location of al-Ṣūfī’s north pole star in the manuscript tradition of his magnum opus during the centuries after him is also investigated in detail. A supplementary discussion is included on the confusion between two different entities—the pole of the celestial sphere and the pivot of an indigenous Arabic asterism envisioned as a millstone—in philological, lexical, and literary Islamic works, which chiefly stems from the vague terminology employed. (shrink)

Abstractabstract:In a recent issue of the Journal of the History of Philosophy, Matt Bower argues forcefully against A. D. Smith's interpretation of Husserl as a disjunctivist. But I argue in this discussion note that the disjunctive reading of Husserl remains plausible. For it seems Husserl was committed to the idea that perceptions essentially have singular contents, while hallucinations do not.

This is a critique of Timothy Hsiao’s ‘A Moral Defense of Trophy Hunting.’ I argue that Hsiao’s arguments on pain, consciousness, behavior, cruelty, and necessity all fail. More importantly, I argue against his broader conclusion that non-human animals ‘do not have any inherent moral significance.’ My conclusion is that Hsiao’s moral defense of trophy hunting fails.

The West has lost its traditional spiritual anchors following the rise of science and the social revolution of the sixties. Healing and wholeness begins with reclaiming the spiritual forms that gave rise to Western culture to provide grounding to meet the challenges of meaning in the era global cultural interchange.

Is understanding subject to a factivity constraint? That is, must the agent’s representation of some subject matter be accurate in order for her to understand that subject matter? ‘No’, I argue in this paper. As an alternative, I formulate a novel manipulationist account of understanding. Rather than correctly representing, understanding, on this account, is a matter of being able to manipulate a representation of the world to satisfy contextually salient interests. This account of understanding is preferable to factivism, I argue, (...) mainly for simplicity reasons. While it explains the intuitive data about understanding as successfully as factivist accounts, it is simpler by virtue of reducing the value truth bestows on understanding to that of usability. (shrink)

Developing an intellectualist account of skill, Stanley and Williamson define skill as a kind of disposition to action-guiding knowledge. The present paper challenges their definition of skill. While we don’t dispute that skill may consist of a cognitive, a dispositional, and an action-guiding component, we argue that Stanley and Williamson’s account of each component is problematic. In the first section, we argue, against Stanley and Williamson, that the cognitive component of skill is not a case of propositional knowledge-wh, which is (...) typically indexical. In the second section, we seek to show that Stanley and Williamson face difficulties in arguing for a generic claim about skill as a kind of disposition, and they fail to defend intellectualism about skill based on the dispositional account. In the third section we argue that Stanley and Williamson need a more detailed account of the action-guiding aspect of skill to avoid several difficulties, including a threat of a regress. We close with some lessons for the debate over intellectualism and anti-intellectualism about skill. (shrink)

Background: During the COVID-19 pandemic, frontline workers faced a series of challenges balancing family and work responsibilities. These challenges included making decisions about how to reduce COVID-19 exposure to their families while still carrying out their employment duties and caring for their children. We sought to understand how frontline workers made these decisions and how these decisions impacted their experiences.Methods: Between October 2020 and May 2021, we conducted 61 semi-structured interviews in English or Spanish, with individuals who continued to work (...) outside of the home during the pandemic and had children living at home. Interviews were recorded, transcribed verbatim, and analyzed using abductive methods.Results: Frontline workers experienced moral distress, the inability to act in accordance with their values and obligations because of internal or external constraints. Their moral distress was a result of the tensions they felt as workers and parents, which sometimes led them to feel like they had to compromise on either or both responsibilities. Individuals felt morally conflicted because 1) their COVID-19 work exposures presented risk that often jeopardized their family’s health; 2) their work hours often conflicted with their increased childcare responsibilities; and 3) they felt a duty to their colleagues, patients/customers, and communities to continue to show-up to work.Conclusions: Our findings point to a need to expand the concept of moral distress to include the perspectives of frontline workers outside of the healthcare professions and the fraught decisions that workers make outside of work that may impact their moral distress. Expanding the concept of moral distress also allows for a justice-based framing that can focus attention on the disparities inherent in much frontline work and can justify programmatic recommendations, like increasing paid childcare opportunities, to alleviate moral distress. (shrink)

Quality control is an important and integrated part of the scientific system. However, developments in science and society are changing quality control into quality monitoring. New, virtual, and fluid organizational forms are emerging. Common boundaries are seen as being broken down as, for example, in the “triple helix” and the “mode 2” concepts. The stakeholders in science are showing an interest in being more involved in science. They want their evaluation criteria to be used, and they want evaluations to be (...) done on a regular basis because they do not trust the new scientific institutions to be left on their own. Quality monitoring changes the requirements for conducting evaluations as part of quality control. Assessing the societal value of research becomes increasingly important. Finally, quality monitoring emphasizes organizational learning rather than controlling quality in scientific organizations. (shrink)

Determinist thought with its sui generis view on life, nature and being as a whole is a point of view that could be observed in many different cultures and beliefs. It was thanks to Greek thought that it ceased to be a cultural element and transformed into a systematic cosmology. Schools such as Leucippos, then Democritos and Stoa attempted to integrate the determinist philosophy into ontology and cosmology. In the course of time, physics and metaphysics-based determinism approaches were introduced, and (...) a wide spectrum has emerged from genetics to behaviorism, from culture to psychology, from atomism to divinity. Determinism, whether physical or metaphysical origin, ignores freedom of will and deny agency competence over human behavior. Due to this feature, it is opposed by ethical theories, legal philosophies and religions. When the arguments for determinism are possible to disprove logically and philosophically, this is not so easy when the claims base themselves on scientific base. As the logical consequence of this novel fact, it is important to question the epistemological value of scientific knowledge and critically analyze the data of experiments and clinical studies in terms of methodology when answering any hypothesis such as neuro-biological, neuro-psychological, or neuro-theological argumentations. On the other hand, it is necessary to reach alternative experiments on the same subject or to show that it is possible to interpret them in different ways, as in the example of the Libet experiment. The neurobiological determinism based on biological reductionism, emerged as the result of ignoring the ontological difference of the mind, equating the mind with the brain, or defining mentality as an epiphenomenon of the brain. The main divergence stems from the acceptance of materialist philosophy. Paradigms that reduce existence only to matter do not take the metaphysical possibilities into account. In this case, although the problems called qualia or subjective experience stand there unresolved, the claim is preserved. Although many new developments such as the discovery of the entropy law, the big bang theory, and quantum physics have shaken the materialist philosophy, modern science resists an epistemological revision. However, with the current epistemology, it does not seem possible to grasp both the universe and the being as a whole. This is the most important reason why every attempt to understand the nature and spiritual side of human beings fails despite numerous experiments on the brain. However, the human brain is an organ that seems sophisticated and its secrets cannot be easily solved. Since there is not enough information about the brain, there is not enough evidence to claim that the brain, and therefore the mind, are part of the deterministic universe. Increasing brain researches since the last quarter of the twentieth century has revealed that genes, neurons and particularly brain chemistry claim much greater role than expected in human behavior. These results have been instrumentalized by some researchers for a radical claim that free will is an illusion, while by others it has led to the acceptance of will as less important over actions than was thought. Both ideas adopted a model of biological determinism in which freedom of will was ignored. Hypotheses based on controversial interpretations of various experiments raised concerns about religious, moral, and legal responsibility. Although man cannot be thought of as a non-free being from the point of view of common sense, the smog screen over the truth would not be lifted unless the scientific data in question had a correct interpretation. At first glance, it seems unreasonable to discuss universal determinism in the quantum universe. Nevertheless, the claim that strong causality prevails in the material world, including consciousness, remains in place. Therefore, firstly criticizing determinism and then examining biological determinism will help to fix the conceptual framework. This article aims to explain why genetics and neurobiology, while acknowledging their importance in the realization of behavior, can’t completely abolish moral agency. Some hypotheses attribute consciousness and free will to the physico-shimic structure of the brain, the random activity of neurons, or the ability to automatically transform inputs into outputs with the advantage of genetic information. This is the most sensitive and important point of being human; it attacks free will. Paradoxically, while global civilization of our time promises infinite freedom to human beings the science of the same age tries to prove that it is not free. (shrink)

For a long time, researchers in the fields of psychology and neuroscience have been interested in discovering ways to boost productivity in traditionally "healthy," "clinical," and "military" populations. However, one of the biggest challenges in reaching this objective is developing personalised performance phenotypes that can be used to build interventions that are specifically catered to each individual's needs. Impact: Thanks to AI's recent advancements, we can now create individualised training, preparation, and recovery plans that are tailored to each person's unique (...) cognitive and biological profile. Concurrent AI advancements, especially in the psychological and neurological sciences, have demonstrated the importance of incorporating domain expertise and stakeholder inputs into the development of trustworthy AI. Value: This Patterns themed issue seeks original empirical work, literature reviews, and methodological papers that establish and validate precision artificial intelligence methods for human performance optimization, with a focus on modelling individual differences via state-of-the-art computational methods. (shrink)

In this article I describe the implicit conceptualization of social order which exists in Death Stranding — localized in both the setting and the mechanics of the game — and compare it with the conceptualization of Thomas Hobbes’s “Leviathan”. First, the theoretical tension between Death Stranding and “Leviathan” is traced: the speculative conceptualization of the Leviathan and the procedural conceptualization of Death Stranding are compared by clarifying the role that the concepts of action, authorization, right and sovereignty play in Hobbesian (...) theory and the video game. Sec­ondly, the theoretical tension between the political and natural capacities of the Sovereign according to Hobbes is explicated; with the help of mate­rial from Death Stranding, a variant of its resolution is proposed, suggest­ing the conceptualization of the Sovereign-without-a-body: an instance devoid of physical capacity and materiality, yet still capable of maintaining social order as a product of its activity. Subsequently, attention is paid to the mechanics of state expansion in Death Stranding: I describe and analyze how the Sovereign-without-a-body’s messenger — the protagonist of the video game — interacts with people outside the Sovereign’s zone of influ­ence, convincing them to consent to return to the commonwealth. This theoretical move makes it possible to supplement Hobbes’s binary scheme of the state of nature and commonwealth with a third concept — the state of memory, in which the memory of the Sovereign turns out to be a deci­sive factor influencing whether the commonwealth will be restored to its former boundaries. By explicating the Hobbesian theory of imagination, I demonstrate that — in the state of memory — the Sovereign is contingent, not fully defined, and virtual. (shrink)

Today the study of Hobbes is both reputable and flourishing, to judge by the numbers in recent years of publications, submissions, conferences, workshops, and sessions at professional meetings devoted to Hobbes, along with growing interest from scholars in China and Latin America. I recently conducted a survey of colleagues working on Hobbes; a non-scientific survey, it included scholars working in a variety of departments. This research note reports the views of more than three dozen respondents, who answered three questions: (1) (...) what has been at stake in Hobbes debates?; (2) have any conclusions been decisively established?; and (3) what are the open questions for the future? The answers evidence a lack of consensus but also demonstrate that we have increasingly refined and sophisticated theoretical arguments for and against contending positions. (shrink)

L'abstraction qui donne le logique etant radicale tombe dans le vide. Ni du cote matiere, puisqu'elle porte sur l'indefini tout objet, ni du cote forme elle ne s'accroche a une qualification positive. Comment est possible une science qui ne dispose que des notions unite, pluralite et representation? Que tirer de l'exigence d'accord de la pensee avec elle meme sinon l'eternelle repetition? Pour que l'accord revetit un sens plein, il faudrait qu'il y eut au moins une differenciation a l'interieur de la (...) pensee, que l'occasion de desaccord possedat deja un contenu, mais la logique serait alors logique transcendantale ou dialectique. Jean Cavailles. (shrink)

In this study, I surveyed students' evaluative perceptions of instructor behavior and their possible influence on academic dishonesty. Slightly over 20% of 1,369 student respondents admitted to academic dishonesty in at least 1 class during 1 term at college. Students who admitted to acts of academic dishonesty had lower overall evaluations of instructor behavior than students who reported not committing academic dishonesty. Implications for student learning and the enhancement of academic integrity in the classroom are discussed.

The present paper studies formal properties of so-called modal information logics (MILs)—modal logics first proposed in (van Benthem 1996 ) as a way of using possible-worlds semantics to model a theory of information. They do so by extending the language of propositional logic with a binary modality defined in terms of being the supremum of two states. First proposed in 1996, MILs have been around for some time, yet not much is known: (van Benthem 2017, 2019 ) pose two central (...) open problems, namely (1) axiomatizing the two basic MILs of suprema on preorders and posets, respectively, and (2) proving (un)decidability. The main results of the first part of this paper are solving these two problems: (1) by providing an axiomatization [with a completeness proof entailing the two logics to be the same], and (2) by proving decidability. In the proof of the latter, an emphasis is put on the method applied as a heuristic for proving decidability ‘via completeness’ for semantically introduced logics; the logics lack the FMP w.r.t. their classes of definition, but not w.r.t. a generalized class. These results are build upon to axiomatize and prove decidable the MILs attained by endowing the language with an ‘informational implication’—in doing so a link is also made to the work of (Buszkowski 2021 ) on the Lambek Calculus. (shrink)

Church youth work is the activities and programs organized by churches for young people. These activities aim to contribute to the religious, spiritual and social development of young people. Church youth work brings young people together and supports them in areas such as religious education, spiritual development, community service, leadership development and active participation in the religious community. It is seen that youth work, which was previously a part of family work, has been organized as a different field of work (...) over time. Churches carry out activities in this field through an organizational structure called youth ministry. Churches generally have a certain systematic and work program in their youth work. Most churches organize their youth programs according to the relevant educational levels. Churches tend to create smaller sub-groups within the youth program and divide young people by grade level. These divisions are usually at the middle and high school level, but youth groups extend to university students and are often referred to as "college and career". Higher education seems to be emphasized in youth work. Many theological faculties offer different postgraduate programs to meet various needs. The quality of youth work is largely determined by the academic studies conducted in this field. Practical theology, which is established as an academic discipline in faculties of theology, both provides the theoretical background that shapes the practice of these studies and provides training to train qualified personnel in the field. The approach to youth ministry can vary, taking into account the different views on the subject, the places where this ministry is provided and the characteristics of people. There are different paradigms in church youth work, especially for young people living in cities. These are called traditional, liberal, activist and prophet-centered youth paradigms. Another pillar of church youth work is spiritual counseling services. Recently, churches have started to employ professional spiritual counselors. Spiritual counseling, a concept that emphasizes the Christian cultural origins of counseling, is now included in youth work. Spiritual counseling is seen as a professional guidance fed by religious and spiritual sources. Church spiritual counselors listen to the problems faced by young people, support them and try to understand them. Spiritual counselors provide guidance based on religious teachings and values to support the personal development of young people. Spiritual counseling conducted by churches can take various forms. These include individual counseling, group counseling, family counseling, online counseling, retreats and workshops. The personnel who carry out the youth work of the churches are also called youth leaders. Accordingly, it is seen that various leadership models in the literature are discussed in this context. Some leadership models that are thought to inspire youth work are: Servant leadership, ethical leadership, spiritual leadership and transformational leadership. In this research, these leadership models are discussed in the context of church youth work. This research aims to reveal the basic approaches and principles in this field by focusing on the studies in the context of non-formal religious education in Catholic Churches. Although it varies from region to region or from church to church, the main problem of this study is to examine the youth work of the Catholic Church in the context of non-formal religious education in general. The research data were obtained through document analysis method. On this occasion, it is thought that this study will also be useful in the context of a comparative evaluation of non-formal religious education in our country. (shrink)

This chapter focuses on the ontological nature of the past and our experience of the present in relation to the actual. It is argued that philosophers mistakenly equate the real with the actual. The actual is what is presented to us in experience, but what is presented to us in experience is confined to the present; so one might think that it follows that only the present is real. This presentist theory is subsequently rejected. Past, present and future are real (...) and certain mental acts such as memories of the past and expectations of the future have as their content objects at those times; these objects are just as real as the objects of present experiences. This paves the way for a distinctive brand of eternalism that is defended in the remainder of this chapter. (shrink)

Mitochondrial donation or mitochondrial transfer enables a woman with mitochondrial disease to have a genetically related child without transmitting the disease to the child. The techniques used for mitochondrial donation or transfer which are maternal spindle transfer or pro-nuclei transfer, require three gametes to ultimately produce a healthy embryo. Both these techniques result in the child inheriting nuclear DNA from the intending parents and mitochondrial DNA from the female donor. Following the legalisation of mitochondrial donation in the UK, after a (...) rigorous process of scientific and ethical review, and the birth of another baby using the technique, coupled with the fact that there is no cure for mitochondrial disease, suggests that it is prudent for us to consider this reproductive intervention and its application in the South African setting. In addition, the 2019 UNESCO Report of the International Bioethics Committee (IBC) on assisted reproductive technologies (ART) and parenthood, encourages debate on changes in models of parenthood influenced by ART including the emergence of new models of families and forms of parenthood that extend beyond the classical rule of mater semper certa est (the mother is always known). ART, in particular mitochondrial donation, challenges this rule. The aim of this paper is to provide an outline of the legal and ethical positions of mitochondrial donation and resume the discussion with specific focus on the South African context. (shrink)

The role of animals in the realm of sport is the focus of this special issue which delves into the nuanced intersections of sport, animals, and ethics. For millennia, humans have forged multifacete...