Résumé Le cadran solaire analemmatique est présenté pour la première fois par un mathématicien français, appelé Vaulezard, dans un petit fascicule publié en 1640. Suit un deuxième ouvrage, plus complet, en 1644. Dernier venu, ce cadran attire l'attention d'importants savants tels que Foster et Lalande. Parfait dès le départ, il a néanmoins la singulière particularité d'inspirer diverses tentatives d'amélioration, plutôt infructueuses, et d'être à l'origine de quelques variétés de cadrans analemmatiques qui, elles, connaissent un franc succès. Nous apportons la preuve (...) trigonométrique et, pour la première fois semble‐t‐il, la preuve géométrique de sa validité astronomique en suivant fidèlement la méthode de construction indiquée par Vaulezard. Nous effectuons, en outre, un survol aussi exhaustif que possible des différents modèles dérivés de ce cadran ainsi que de la littérature les concernant. Summary The analemmatic sundial was briefly presented for the first time in 1640 by the French mathematician Vaulezard and was described in more detail by him in 1644. The analemmatic dial is the last genuine sundial to be invented and it has attracted the attention of some important scholars such as Foster and Lalande. Although perfect from the very beginning, it had the unusual particularity of inspiring several unfortunate attempts at its improvement as well as being at the origin of a few other types of analemmatic dials, which met with a certain success. We provide here the trigonometric proof and for the first time, the geometric proof of its astronomical validity by closely following the construction method of Vaulezard. We also make a comprehensive survey of the different kinds of analemmatic sundials and of their literature. (shrink)

This paper aims, on the one hand, to determine the valid span of the diagram of unequal hours and, on the other, to find a mathematical expression for the error. It is found that the diagram is valid for the two days of the equinoxes and for the times when the sun is on the horizon or on the meridian. This subject has previously been treated by Delambre in 1819 and Drecker in 1925, but not comprehensively.

Le cadran solaire analemmatique est présenté pour la première fois par un mathématicien français, appelé Vaulezard, dans un petit fascicule publié en 1640. Suit un deuxième ouvrage, plus complet, en 1644. Dernier venu, ce cadran attire l'attention d'importants savants tels que Foster et Lalande. Parfait dès le départ, il a néanmoins la singulière particularité d'inspirer diverses tentatives d'amélioration, plutôt infructueuses, et d'être à l'origine de quelques variétés de cadrans analemmatiques qui, elles, connaissent un franc succès. Nous apportons la preuve trigonométrique (...) et, pour la première fois semble‐t‐il, la preuve géométrique de sa validité astronomique en suivant fidèlement la méthode de construction indiquée par Vaulezard. Nous effectuons, en outre, un survol aussi exhaustif que possible des différents modèles dérivés de ce cadran ainsi que de la littérature les concernant.SummaryThe analemmatic sundial was briefly presented for the first time in 1640 by the French mathematician Vaulezard and was described in more detail by him in 1644. The analemmatic dial is the last genuine sundial to be invented and it has attracted the attention of some important scholars such as Foster and Lalande. Although perfect from the very beginning, it had the unusual particularity of inspiring several unfortunate attempts at its improvement as well as being at the origin of a few other types of analemmatic dials, which met with a certain success. We provide here the trigonometric proof and for the first time, the geometric proof of its astronomical validity by closely following the construction method of Vaulezard. We also make a comprehensive survey of the different kinds of analemmatic sundials and of their literature. (shrink)

Summary The first attempt at a classification of sundials appeared only in 1953, in the catalogue established by Henri Michel for the Museum of Liège. It was immediately followed, in the same year, by the article by Kathleen Higgins, exclusively dedicated to this topic. The influence of this second study has spread out throughout the numerous articles on sundials that have been subsequently published. The aim of the present paper is to bring some order to these two old classifications, which (...) are in fact quite similar and were sufficiently valid at the time, and to propose a new approach to the problem based, for the first time, on principles directly linked to astronomy and geometry. Moreover, this latter approach has the advantage of a flexibility in its application to all kinds of sundial collections. (shrink)

Some plausibly necessary a posteriori theoretical claims include ‘water is H 2 O’, ‘gold is the element with atomic number 79’, and ‘cats are animals’. In this paper I challenge the necessity of the third claim. I argue that there are possible worlds in which cats exist, but are not animals. Under any of the species concepts currently accepted in biology, organisms do not belong essentially to their species. This is equally true of their ancestors. In phylogenetic systematics, monophyletic clades (...) such as the animal kingdom are composed of an ancestral stem species and all of its descendants. If the stem species had not existed, neither would the clade. Thus it could have been the case that all the organisms which actually belong to the animal kingdom might have existed yet not have been animals. (shrink)

The United Nations World Tourism Organization has acknowledged 2020 as the worst year in tourism history due to the worldwide pandemic COVID-19. Destinations, tourists, local communities, stakeholders, and residents, and their daily activities were affected. Thus, wellbeing and resilience are two crucial variables to help the industry and the people recover. This research aims to analyze early positive approaches and attitudes to respond to the negative impact of COVID-19 in tourism everyday activities that have at its core wellbeing and resilience, (...) the two main variables of the Positive Psychology field of studies. A systematic literature review was conducted, following PRISMA guidelines to achieve this aim. The research was done using the Online Knowledge Library and all the available databases. The research led to 32 articles that were screened using the inclusion and exclusion criteria. A total of 18 scientific articles met all criteria. Overall, results show that a positive and resilient approach to deal with the adverse outcomes of the pandemic is a concern for stakeholders and the future of the organizations in the tourism and hospitality sector, as is tourists’ wellbeing. However, less research has been done on wellbeing and a clear lack of research regarding residents’ wellbeing and resilience is evident. A deeper study of wellbeing and resilience in tourism is needed, and actual practices and interventions to ensure that all tourism actors have the resources to overcome the pandemic and restart the industry’s daily lives feeling well and safe. (shrink)

Life is a self-maintaining process based on metabolism. Something is said to be alive when it exhibits organization and is actively involved in its own continued existence through carrying out metabolic processes. A life is a spatio-temporally restricted event, which continues while the life processes are occurring in a particular chunk of matter (or, arguably, when they are temporally suspended, but can be restarted at any moment), even though there is continuous replacement of parts. Life is organized in discrete packages, (...) particular cells and multicellular organisms with differing degrees of individuality. Biological species, too, have been shown to be individuals, and not classes, as these collections of organisms are spatio-temporally localized, restricted, continuous, and somewhat cohesive entities, with a definite beginning and end. Assuming that all life on Earth has a common origin, all living organisms, cells, and tissues descending from this origin exhibit continuity of the life processes at the cellular level, as well as many of the features that define the individual character of species: spatio-temporal localization and restriction, continuity, historicity, and cohesiveness. Therefore, life on Earth is an ontological individual. Independent origins of life will have produced other such individuals. These provisionally called ‘life-individuals’ constitute a category of organization of life which has seldom been recognized. The discovery of at least one independent life-individual would go a long way toward the project of the universality of biology. (shrink)

An essentialist claim often made about organisms is that they could not have originated in different gametes. The thesis of gametic essentialism (GE) is usually understood either as a particular case of material origin essentialism, or as genetic essentialism. This paper argues that it should instead be understood in terms of the numerical identity of the gametes. Since gametes are living cells, their identity conditions should be the same as those of other living beings, and therefore involve neither specific material (...) composition, nor specific genes, but continuity of the same life. Understood in this way, GE is a particular case of biological antecedents essentialism (BAE), a kind of origin essentialism that is better justified in the light of the metaphysical nature of organisms as objects that inherit life from previously existing living organisms. BAE overcomes many objections facing other origin essentialist accounts, and it recognises the importance of the gametes in transmitting not just genes, but actively functioning physical structures necessary for life. If we wish to maintain an origin essentialism principle for organisms, we should prefer BAE. (shrink)

O objetivo deste estudo é identificar como a adoção aparece nas histórias de vida de indivíduos adotados e como eles normalizam suas experiências relacionadas à adoção. Focaliza-se a re-historiação do “eu” na narrativa e considera-se que o seu final é determinado por quem constrói a narrativa, não por eventos relatados cronologicamente. Os dados provêm das narrativas de dois indivíduos adotados, transcritas segundo convenções utilizadas na Análise da Conversa Etnometodológica, nas quais se destaca a presença dos eventos relacionados à adoção na (...) re-historiação dos pesquisados e na constituição de seus “eus” parciais, considerando também as características rítmicas e outras propriedades da fala em interação. Foi possível constatar que o final da história influencia na maneira como a narrativa é construída e como as experiências de adoção aparecem nas narrativas, com maior ou menor grau de normalização a elas atribuído. (shrink)

Se trata de la reseña de un libro que, siguiendo en la estela de obras importantes como _La tradición velada _(Madrid: Biblioteca Nueva, 1990), de Francisco José Martín, o _El pensamiento lingüístico de José Ortega y Gasset _(A Coruña: Spiralia, 2009), de Concha d’ Olhaberriague, destaca la relevancia y el múltiple significado de _exilio _que el año de 1932 representa en el trayecto biográfico del filósofo, cuando la decepción con la política y la necesidad de concentrarse en sus meditaciones filosóficas (...) lo llevan a una retirada del escenario público, antes mismo del exilio geográfico asociado a la Guerra Civil. Las circunstancias habían cambiado y a partir de 1936 cambiarán particularmente, aunque la vocación de Ortega no. Esmeralda Balaguer toma como ejemplo la cuestión de su silencio (tantas veces malinterpretada por otros autores) y comprueba cómo la fidelidad al imperativo de autenticidad permitió al filósofo renovar en las últimas décadas de su producción numerosas concepciones que defendía desde muy temprano. (shrink)

Previous research suggests that all-inclusive superordinate categories, such as “citizens of the world” and “humans,” may represent different socio-psychological realities. Yet it remains unclear whether the use of different categories may account for different psychological processes and attitudinal or behavioral outcomes. Two studies extended previous research by comparing how these categories are cognitively represented, and their impact on intergroup helping from host communities toward migrants. In a correlational study, 168 nationals from 25 countries perceived the group of migrants as more (...) prototypical of the superordinate category “citizens of the world” than their national group, whereas no differences in prototypicality occurred for the category “humans.” Identification with “citizens of the world” was positively associated with a disposition to oppose helping migrants and to offer dependency-oriented help. However, identification with “humans” was positively associated with helping in general, and with offering dependency- and autonomy-oriented help; and negatively associated with opposition to helping. The experimental study manipulated the salience of “citizens of the world” vs. “humans” vs. control category, among 224 nationals from 36 countries. Results showed that the salience of “humans” triggered higher entitativity and essentialist perceptions, and dual-identity representations. No differences due to salience were found for representations of relative ingroup prototypicality or helping responses. Overall, these findings suggest that the interchangeable use of different labels is problematic, considering these might activate different representations, and thus, are likely to lead, in some circumstances, to different attitudinal or behavioral outcomes. (shrink)

Patientenselbstbestimmung und Patientenverfügungen haben zunehmende Bedeutung und Beachtung erfahren. In der vorliegenden qualitativen Studie wurden 15 Patientinnen und Patienten mit amyotropher Lateralsklerose —einer unheilbaren, chronisch-degenerativen Erkrankung mit vorhersehbarer Symptomatik—interviewt, um zu erfahren, welche Werte und Kriterien sie bei prospektiven Entscheidungen am Lebensende und bei der Abfassung von PV zugrunde legen. Die Auswertung erfolgte nach der Methode der „grounded theory“. Die befragten Patientinnen und Patienten befürworteten einen Verzicht auf lebenserhaltende Behandlungen, wenn sie keine hinreichenden Lebensmöglichkeiten mehr sahen, d. h. wenn sie (...) die aktuelle Lebensqualität für unzureichend erachteten und die Chance auf Besserung als gering einschätzten. Dem Patientenwillen sprachen sie bei der Entscheidungsfindung ein Vetorecht zu. Patientenverfügungen fassten sie erst ab, als sie keine Hoffnung mehr auf Besserung ihrer Erkrankung hatten. Sie verstanden diese als Instrumente zur vorsorglichen Erklärung ihres Wunsches, auf lebensverlängernde Maßnahmen zu verzichten, wenn die LM inakzeptabel geworden sind. Damit wollten sie sich gegenüber dem Arzt absichern, den sie in der Rolle eines Anwalts des Lebens sahen und mit dem sie daher ihre Behandlungswünsche nicht besprochen haben. Trotz vorhersehbarer Symptomatik legten sie in ihren PV keine spezifischen Behandlungswünsche nieder, sondern verwendeten allgemeine Formularmuster ohne konkreten Bezug zu ihrer Erkrankung. Daher bestehen auch bei dieser Patientengruppe Zweifel, ob die PV in einer konkreten Behandlungssituation hilfreich sind. (shrink)

Animalism is prima facie the most plausible view about what we are; it aligns better with science and common sense, and is metaphysically more parsimonious. Thought experiments involving the brain, however, tend to elicit intuitions contrary to animalism. In this paper, I examine two classical thought experiments from the literature, brain transplant and cerebrum transplant, and a new one, cerebrum regeneration. I argue that they are theoretically possible, but that a scientifically informed account of what would actually happen shows that (...) in none of the cases would the person be separated from the animal. Our intuitions in these cases, when adequately informed by neuroscience, do not conflict with animalism – rather, they suggest a correction of the animalist position: the persisting animal should be at least minimally sentient. Sentience animalism is a new formulation of the animalist account of personal identity that allows us to reconcile facts about our biological persistence conditions with the intuition that human persistence should involve some kind of psychological continuity. (shrink)

José Ortega y Gasset deu em Lisboa, em 1944, um curso universitário intitulado La razón histórica. Não obstante ter ficado incompleto, após interrupção por doença do autor, ele é talvez um dos mais importantes vestígios da sua estada em Portugal, durante a última etapa do seu longo exílio. Em edição da Imprensa da Universidade de Coimbra, Margarida I. Almeida Amoedo disponibiliza agora a tradução desse curso, enquadrando-o no contexto próximo da obra orteguiana.

Life on Earth descends from a common ancestor. However, it is likely that there are other instances of life in the universe. If so, each abiogenesis event will have given rise to an independently originated life clade, of which Earth-life is an example. In this paper, I argue that the set of all IOLCs in the universe forms a Darwinian population subject to natural selection, with more widely dispersed IOLCs being less likely to face extinction. As a result, we should (...) expect that, over time, more planets will become inhabited by fewer, more successful IOLCs. (shrink)

In The Expanse, the future of humanity is constantly at stake. In The Expanse vestiges of an ancient alien civilization with incredibly advanced technology have been found—which eventually permits human interstellar expansion through the gates. James Lenman argues that, even if we agree that biodiversity is a good thing, it only means that it's good that there should be natural diversity while life exists on Earth. While we might not be facing interplanetary war or the unpredictable consequences of ancient alien (...) technology, many serious dangers face the human species today. We are quite resilient and have survived numerous disasters in the past, including floods, earthquakes, famine, pandemics, and wars. Small population size and restricted distribution range are factors that increase a species’ extinction risk. Interplanetary expansion could potentially bring about speciation, which means the separation of Homo sapiens into different species. (shrink)

Media portrayal has a huge impact on young fashion and style preferences, driving both social and personal trends. This study investigates whether media portrayals, such as social media, television, and fashion businesses, influence young adults' fashion choices and self-image. The study investigates the influence of exposure to media on fashion preference formation through the analysis of collected datasets. The key findings show that fashion personalities and media channels have a significant impact on style acceptance. The study focuses on how brand (...) reputation and the variety of media content impact consumer behavior. It employs SPSS software to conduct statistical methods, such as Chi-Square tests, to examine the link between demographic factors and media influence. The findings underscore the dynamic nature of fashion trends influenced by media and emphasize the need to understand how media shapes the fashion choices of today's youth. (shrink)

BackgroundWomen survivors of breast cancer treatments face significant challenges around initiation or maintenance of physical activity as they transit to recovery. Embracing their needs and preferences is important to increase adherence. This study aimed to explore the perspectives of Portuguese women survivors of breast cancer regarding regular performance of PA and individual choices and strategies that should be considered in designing effective interventions.MethodsThe individual semi-structured interviews were analyzed through thematic analysis, following an inductive process, seeking to identify the barriers, facilitators, (...) and particular influencing circumstances associated with regular PA.ResultsFour themes and several contextual, emotional, physical, and social factors were identified as determinants of regular PA. Guilt, women’s duties, and altruism to help close relatives were identified as emotional and cultural factors that are less-found in the existing literature. PA showed influence both from health professionals’ counseling and from knowledge and beliefs held by these women.ConclusionWhile confirming the already-known impact of breast cancer diagnosis and treatments on PA, which redefine participants’ availability to be active, the findings highlight beliefs and specific emotional factors that should be considered when planning culturally sensitive interventions. (shrink)

Cinematic content plays a crucial role in shaping and reflecting societal attitudes, offering powerful narratives that can influence public perceptions of social issues. This study explores the impact of cinematic content on psychological attitudes towards social issues among college students. A sample of 150 students was divided into two groups: Group A (80 students) impacted the positive attitude while Group B (70 students) served as the control group with negative attitude. This study aimed to assess how cinematic narratives affect attitudes (...) and perceptions of social issues. Statistical methods employed included t-tests to compare attitudes between groups, one-way ANOVA for with-group variations, chi-square tests for categorical relationships, and pre-post tests to measure changes in attitudes. The findings highlight the significant role of cinematic content in shaping the attitudes towards social issues, emphasizing the importance of understanding how films influence public opinion and societal norms. This analysis provides insights into the effectiveness of cinematic portrayals in driving the positive social change and informs content creators on leveraging media for educational and advocacy purposes. (shrink)

Through case studies that highlight the type of information that is seldom reported in the news, Faces of Environmental Racism exposes the type and magnitude of environmental racism, both domestic and international. The essays explore the justice of current environmental practices, asking such questions as whether cost-benefit analysis is an appropriate analytic technique and whether there are alternate routes to sustainable development in the South.

The marketing culture is essential for improving performance in the highly competitive restaurant industry. It investigates the effectiveness of marketing culture dimensions on the performance of restaurants in the competitive restaurant industry. The data was gathered from 298 respondents of managers and employees across 48 restaurants using a structured questionnaire. Partial Least Squares Structural Equation Modeling (PLS-SEM) was used to evaluate the connections between these constructs. The measurement model assessment was validated using indicators such as Average Variance Extracted (AVE), Composite (...) Reliability, and Cronbach’s Alpha. The structural model assessment investigation's strategy hypothesized connections were also tested using evaluations of five structural path frameworks. The findings demonstrate that all five dimensions of marketing culture positively and significantly impact restaurant performance. Sales strategy had the strongest influence, followed by innovation potential, quality of service, organizational structure, and leadership-staff collaboration. All hypothesized relationships were supported with significant path coefficients, T-values, and p-values. The study emphasizes the importance of a robust marketing culture in enhancing restaurant performance and suggests that restaurant managers should prioritize the development of effective sales strategies and foster innovation within their marketing culture. (shrink)

This paper addresses the question ‘what is an organism?’. Extant theories of organismality only provide a partial answer because they do not include an account of composition on which an ontology of living entities can be based. Here we develop a new account of what organisms are, based on a naturalistic answer to the special composition question, the bound state view. We argue that physical structure, including the existence of a boundary, is essential for life, and that, therefore, organisms are (...) a particular kind of composite physical object – living objects. The bound state account of composition explains how composite physical objects exist in the world, and the property ‘life’ distinguishes the subset of those objects which are organisms. Our view obviates the need for disjunctive accounts of composition for living and non-living entities, placing ‘organism’ within the context of a broader scientific ontology, while at the same time providing a clear criterion of organismality that can be used in adjudicating problematic cases of biological individuality. (shrink)