Abstract…observations of skylfull pylotts is the onlye waye to bring it in rule; for it passeth the reach of naturall philosophy. – Michael Gabriel, 1576 (Collinson, 1867, p. 30)Abstract The tension between empirical data and formal theory pervades the entire history of geomagnetism, from the Middle Ages up to the present day. This paper explores its early-modern history (1500–1800), using a hybrid approach: it applies a methodological framework used in modern geophysics to interpret early-modern developments, exploring to what extent formal (...) conjectures shaped observation and vice versa. A range of pertinent case studies supports classification of this entire period as proto-scientific, characterised by the initial formation of theories being largely disconnected from observational constraints, and their subsequent evolution being advanced primarily by their empirical falsification, and not necessarily associated with the introduction of an alternative. The few exceptional instances of purely data-driven discovery were essentially due to an improved signal-to-noise ratio. (shrink)

The role of the arts has become crucial to understanding the origins of “modern human behavior,” but continues to be highly controversial as it is not always clear why the arts evolved and persisted. This issue is often addressed by appealing to adaptive biological explanations. However, we will argue that the arts have evolved culturally rather than biologically, exploiting biological adaptations rather than extending them. In order to support this line of inquiry, evidence from a number of (...) disciplines will be presented showing how the relationship between the arts, evolution, and adaptation can be better understood by regarding cultural transmission as an important second inheritance system. This will allow an alternative proposal to be formulated as to the proper place of the arts in human evolution. However, in order for the role of the arts to be fully addressed, the relationship of culture to genes and adaptation will be explored. Based on an assessment of the cognitive, biological, and cultural aspects of the arts, and their close relationship with ritual and associated activities, we will conclude with the null hypothesis that the arts evolved as a necessary but nonfunctional concomitant of other traits that cannot currently be refuted. (shrink)

Most donated organs in the United States come from brain dead donors, while a small percentage come from patients who die in “controlled,” or expected, circumstances, typically after the family or surrogate makes a decision to withdraw life support. The number of organs available for transplant could be substantially if donations were permitted in “uncontrolled” circumstances–that is, from people who die unexpectedly, often outside the hospital. According to projections from the Institute of Medicine, establishing programs permitting “uncontrolled donation after circulatory (...) determination of death,” or uDCDD, throughout the United States has the potential to provide 22,000 more donation opportunities annually. In contrast, U.S. controlled donation after circulatory determination of death, or cDCDD, cases have increased progressively over the past decade from 87 to 848 donors, but currently account for only 10.6 percent of all deceased donors. Following the IOM recommendations, several projects exploring the feasibility of uDCDD were funded by the federal government, including a grant from the Health Resources and Services Administration that supported a pilot project in New York City in which the authors of this article participated.A key feature of our protocol, and indeed of many uDCDD protocols, is the initiation of preservation methods such as chest compressions and extracorporeal membrane oxygenation shortly after death in order to perfuse and preserve the donor's organs. Critics of uDCDD argue that the means of determining death deviates from generally ascribed principles. They assert that reinstituting circulation in order to preserve organs has the effect of “undoing” the prior determination of death. The result is that cDCDD is widely accepted and practiced routinely even though it only marginally increases the number of organs available for transplantation, and uDCDD is widely considered unacceptable despite being ethically embraced and proven to significantly increase organ donation opportunities in other countries. This article explores the evolution of this counterintuitive state of affairs and calls for a policy that, in line with the IOM report, allows for both cDCDD and uDCDD protocols. (shrink)

A critical study of the growing use of evolutionary theory and neuroscience to interpret art. Explores the question of what is gained from using ideas and methods from the biological sciences in the analysis of art"--Provided by publisher.

In the twenty-first century the wonders of science show its magnificent potential for good. The scientific successes we enjoy are rooted in the modern way of thinking about physics. But success has fostered a myth that the dialectic of physics should be used in other areas; thus contributing to global calamities, such as Dialectical Materialism in politics and Behaviorism in psychology. In the opening paragraph of The Modern Mind the author proclaims-and indeed others agree-a crisis has been reached in our (...) evolving Western worldview. So the first requirement is a clear understanding of this development! In this work Kevin Wall illuminates this development in the light of philosophy, theology, science, art, and with reference to Greek and Scholastic minds-showing the real-world implications of Western speculative thought. (shrink)

This essay reviews one of the most recent books in a trend of new publications proffering evolutionary theorising about aesthetics and the arts—themes within an increasing literature on aspects of human life and human nature in terms of evolutionary theory. Stephen Davies’ The Artful Species links some of our aesthetic sensibilities with our evolved human nature and critically surveys the interdisciplinary debate regarding the evolutionary status of the arts. Davies’ engaging and accessible writing succeeds in demonstrating the maturity (...) and scope of the field and his critique is timely and unparalleled. A laudable effort, however it may have benefited from espousing a co-evolutionary model more explicitly. Moreover there may be reason to question the usefulness of the standard set of distinctions (‘adaptation’, ‘spandrel’, ‘technology’) that Davies appeals to. (shrink)

There is a problematique about Buddhist Art. It cannot be deduced directly from the basic tenets of ethical Buddhism. Early Buddhist views forbid art as sensuous luxury. Even when Buddhists employed art for edifying ends it was essentially representative and realistic. With the changes in Buddhist system of beliefs and the rise of Buddhist philosophical schools Buddhist art came to symbolize the ideals of tranquility and Karunā - the Mahāyāna ideals par excellence. The masterpiece of the Gupta art depicting the (...) Master in dharmacakrapravartana mudra at Sarnath or the Bodhisattva Padmapani of the Ajanta murals shows that the beauty of the Buddha image resides not in following models of worldly beauty but rather in the creation of an ideal. The medieval Buddhist art is a continuation of the achievements at Sarnath and Ajanta. (shrink)

How did the human brain evolve so that consciousness of art could develop? In The Psychology of Art and the Evolution of the Conscious Brain, Robert Solso describes how a consciousness that evolved for other purposes perceives and creates art.Drawing on his earlier book Cognition and the Visual Arts and ten years of new findings in cognitive research, Solso shows that consciousness developed gradually, with distinct components that evolved over time. One of these components is an adaptive consciousness (...) that includes the ability to imagine objects that are not present--an ability that allows us to create visual art.Solso describes the neurological, perceptual, and cognitive sequence that occurs when we view art, and the often inexpressible effect that a work of art has on us. He shows that there are two aspects to viewing art: nativistic perception--the synchronicity of eye and brain that transforms electromagnetic energy into neuro-chemical codes--which is "hard-wired" into the sensory-cognitive system; and directed perception, which incorporates personal history and knowledge--the entire set of our expectations and past experiences. Both forms of perception are part of the appreciation of art, and both are products of the evolution of the conscious brain over hundreds of thousands of years.Solso also investigates the related issues of neurological and artistic perception of the human face, the effects of visual illusions, and the use of perspective. The many works of art used as examples are drawn from a wide range of artistic traditions, from ancient Egypt to Africa and India and the European Renaissance. (shrink)

How did the human brain evolve so that consciousness of art could develop? In The Psychology of Art and the Evolution of the Conscious Brain, Robert Solso describes how a consciousness that evolved for other purposes perceives and creates art.Drawing on his earlier book Cognition and the Visual Arts and ten years of new findings in cognitive research, Solso shows that consciousness developed gradually, with distinct components that evolved over time. One of these components is an adaptive consciousness (...) that includes the ability to imagine objects that are not present--an ability that allows us to create visual art.Solso describes the neurological, perceptual, and cognitive sequence that occurs when we view art, and the often inexpressible effect that a work of art has on us. He shows that there are two aspects to viewing art: nativistic perception--the synchronicity of eye and brain that transforms electromagnetic energy into neuro-chemical codes--which is "hard-wired" into the sensory-cognitive system; and directed perception, which incorporates personal history and knowledge--the entire set of our expectations and past experiences. Both forms of perception are part of the appreciation of art, and both are products of the evolution of the conscious brain over hundreds of thousands of years.Solso also investigates the related issues of neurological and artistic perception of the human face, the effects of visual illusions, and the use of perspective. The many works of art used as examples are drawn from a wide range of artistic traditions, from ancient Egypt to Africa and India and the European Renaissance. (shrink)

It is a matter of fact that Europe is facing more and more crucial challenges regarding health and social care due to the demographic change and the current economic context. The recent COVID-19 pandemic has stressed this situation even further, thus highlighting the need for taking action. Active and Assisted Living technologies come as a viable approach to help facing these challenges, thanks to the high potential they have in enabling remote care and support. Broadly speaking, AAL can be referred (...) to as the use of innovative and advanced Information and Communication Technologies to create supportive, inclusive and empowering applications and environments that enable older, impaired or frail people to live independently and stay active longer in society. AAL capitalizes on the growing pervasiveness and effectiveness of sensing and computing facilities to supply the persons in need with smart assistance, by responding to their necessities of autonomy, independence, comfort, security and safety. The application scenarios addressed by AAL are complex, due to the inherent heterogeneity of the end-user population, their living arrangements, and their physical conditions or impairment. Despite aiming at diverse goals, AAL systems should share some common characteristics. They are designed to provide support in daily life in an invisible, unobtrusive and user-friendly manner. Moreover, they are conceived to be intelligent, to be able to learn and adapt to the requirements and requests of the assisted people, and to synchronise with their specific needs. Nevertheless, to ensure the uptake of AAL in society, potential users must be willing to use AAL applications and to integrate them in their daily environments and lives. In this respect, video- and audio-based AAL applications have several advantages, in terms of unobtrusiveness and information richness. Indeed, cameras and microphones are far less obtrusive with respect to the hindrance other wearable sensors may cause to one’s activities. In addition, a single camera placed in a room can record most of the activities performed in the room, thus replacing many other non-visual sensors. Currently, video-based applications are effective in recognising and monitoring the activities, the movements, and the overall conditions of the assisted individuals as well as to assess their vital parameters. Similarly, audio sensors have the potential to become one of the most important modalities for interaction with AAL systems, as they can have a large range of sensing, do not require physical presence at a particular location and are physically intangible. Moreover, relevant information about individuals’ activities and health status can derive from processing audio signals. Nevertheless, as the other side of the coin, cameras and microphones are often perceived as the most intrusive technologies from the viewpoint of the privacy of the monitored individuals. This is due to the richness of the information these technologies convey and the intimate setting where they may be deployed. Solutions able to ensure privacy preservation by context and by design, as well as to ensure high legal and ethical standards are in high demand. After the review of the current state of play and the discussion in GoodBrother, we may claim that the first solutions in this direction are starting to appear in the literature. A multidisciplinary debate among experts and stakeholders is paving the way towards AAL ensuring ergonomics, usability, acceptance and privacy preservation. The DIANA, PAAL, and VisuAAL projects are examples of this fresh approach. This report provides the reader with a review of the most recent advances in audio- and video-based monitoring technologies for AAL. It has been drafted as a collective effort of WG3 to supply an introduction to AAL, its evolution over time and its main functional and technological underpinnings. In this respect, the report contributes to the field with the outline of a new generation of ethical-aware AAL technologies and a proposal for a novel comprehensive taxonomy of AAL systems and applications. Moreover, the report allows non-technical readers to gather an overview of the main components of an AAL system and how these function and interact with the end-users. The report illustrates the state of the art of the most successful AAL applications and functions based on audio and video data, namely lifelogging and self-monitoring, remote monitoring of vital signs, emotional state recognition, food intake monitoring, activity and behaviour recognition, activity and personal assistance, gesture recognition, fall detection and prevention, mobility assessment and frailty recognition, and cognitive and motor rehabilitation. For these application scenarios, the report illustrates the state of play in terms of scientific advances, available products and research project. The open challenges are also highlighted. The report ends with an overview of the challenges, the hindrances and the opportunities posed by the uptake in real world settings of AAL technologies. In this respect, the report illustrates the current procedural and technological approaches to cope with acceptability, usability and trust in the AAL technology, by surveying strategies and approaches to co-design, to privacy preservation in video and audio data, to transparency and explainability in data processing, and to data transmission and communication. User acceptance and ethical considerations are also debated. Finally, the potentials coming from the silver economy are overviewed. (shrink)

The subject of the study is the ontological ideas of ancient Chinese music in the context of the formation of philosophical schools of Ancient China, which make it possible to identify a number of philosophical categories that underlie traditional chinese music and outline different approaches to its understanding and interpretation. Most Chinese researchers in the field of musical aesthetics focus on the art of music, rare to pay attention to the philosophical origins of the categories of music that past thinkers (...) wrote about when analyzing laws of existence of the universe. Restoring and rethinking these values in the context of the philosophical and cultural analysis of ancient Chinese music is key to this work, which allows us to gain an understanding of the specifics of ancient Chinese culture and its musical heritage. The novelty of the work lies in carrying out the correlation of genesis of the musical ontology of Ancient China with the dynamics of the formation of the philosophical schools of Confucianism, Taoism and Buddhism, their rise or fall depending on the historical and cultural situation. Musical philosophy in China has not yet become an independent discipline, so the presented work makes a significant contribution to the field of musical ontology. During the study, the authors revealed three main aspects which are basic for the ontology of ancient Chinese music: The nature of music has its source three categories: Tao, air and sound, existing both in a natural state in nature and embodied in musical structure and instruments; Sound and rhythm being the essence to any musical work, organize the sounding space in accordance with the cosmic order; The metaphysical nature of music is justified by the basic principles of Taoist philosophy and number theory. (shrink)

Este trabajo plantea, en primer lugar, una visión global acerca de la evolución de la representación de la naturaleza en la cultura artística visual europea del Alto Medievo. Resultado de la misma es la detección de una parálisis en la evolución estética de la representación de la naturaleza que sin embargo había pasado previamente por fases de esplendor decorativo y simbólico. A continuación se examinan diferentes propuestas historiográficas acerca de la evolución de la relación entre ser humano y naturaleza en (...) la Alta Edad Media y su posible contextualización con el cuadro evolutivo artístico trazado. Esa contextualización lleva finalmente a la búsqueda de una relación del fenómeno detectado con los fundamentos teológicos de la cultura monástica y sus planteamientos escatológicos. This paper first presents an overview about the evolution of the representation of nature in European artistic culture of the High Middle Ages. A result of this is the detection of a paralysis in the aesthetic evolution of nature in visual arts after previous phases of decorative and symbolic richness. Different historiographic proposals on the evolution of the relationship between man and nature in the Middle Ages show a possible contextualization with the artistic paralysis we have stated. That path leads to the search for a relation of the phenomenon detected with the theological foundations of the monastic culture and its eschatological discourses. (shrink)

The emergence of cave art in Europe about 30,000 years ago is widely believed to be evidence that by this time human beings had developed sophisticated capacities for symbolization and communication. However, comparison of the cave art with the drawings made by a young autistic girl, Nadia, reveals surprising similarities in content and style. Nadia, despite her graphic skills, was mentally defective and had virtually no language. I argue in the light of this comparison that the existence of the cave (...) art cannot be the proof which it is usually assumed to be that the humans of the Upper Palaeolithic had essentially ‘modern’ minds. The article includes peer commentary by Paul Bahn, Paul Bloom, Uta Frith, Ezra Zubrow, Steven Mithen, Ian Tattersall, Chris Knight, Chris McManus and Daniel Dennett , with response by Nicholas Humphrey. [Owing to the number of illustrations, the full text for this file is in excess of 1 Mb. .]. (shrink)

Stephen Davies presents a fascinating exploration of the idea that art, and our aesthetic sensibilities more generally, should be understood as an element in human evolution. He asks: Do animals have aesthetics? Do our aesthetic preferences have prehistoric roots? Is art universal? What is the biological role of aesthetic and artistic behaviour?

The article is devoted to a comprehensive analysis of the transformation of the reflection of computer technologies and network resources in the Terminator cinematic and literary universe created by the American director J. Cameron in the mid 1980s and early 2020s. In this study the authors substantiate the relevance and scientific component of the problem under study. The paper considers the degree of importance of high technologies and social networks in modern public life. The article provides a justification for the (...) fallacy of the judgment, according to which works of fiction of a fantastic orientation perform purely entertaining function and do not carry a significant semantic load. This article also provides an argument for choosing the Terminator fantastic universe as an example for research, wit an analysis of the reasons for its great popularity and high degree of significance for contemporary art. The authors of the work subject the key components of the topic under consideration to reflection, taking into account the changes that have taken place in the public consciousness over three and a half decades, takin inti account the differences in historical and political realities – from the last quarter of the 20-th century to the present, until the beginning of the third decade of the XXI century. This article provides a comparative analysis of the reasons for significant differences in the display of high technology and online resources in cinema and fiction. The work draws parallels and analogies with historical events, analyzes the use of the religious meanings used in the Terminator universe. The authors of the article analyze the moral issues that are raised by the creators of the fantastic universe of Terminator in the context of the positive and negative consequences of the intense growth of the role of high technologies and communicative Internet sites in the life of human society. (shrink)

This book tells the history of the many analogies that have been made between the evolution of organisms and the human production of artefacts, especially buildings. It examines the effects of these analogies on architectural and design theory and considers how recent biological thinking has relevance for design. Architects and designers have looked to biology for inspiration since the early 19th century. They have sought not just to imitate the forms of plants and animals, but to find methods in (...) design analogous to the processes of growth and evolution in nature. This new revised edition of this classic work adds an extended Afterword covering recent developments such as the introduction of computer methods in design in the 1980s and ‘90s, which have made possible a new kind of ‘biomorphic’ architecture through ‘genetic algorithms’ and other programming techniques. (shrink)

Introduction -- Landscape and longing -- Art and human nature -- What is art? -- But they don't have our concept of art -- Art and natural selection -- The uses of fiction -- Art and human self-domestication -- Intention, forgery, dada : three aesthetic problems -- The contingency of aesthetic values -- Greatness in the arts.

The need to create art is found in every human society, manifest in many different ways across many different cultures. Is this universal need rooted in our evolutionary past? The Art Instinct reveals that it is, combining evolutionary psychology with aesthetics to shed new light on fascinating questions about the nature of art.

The Art of Randomness teaches readers to harness the power of randomness (and Python code) to solve real-world problems in programming, science, and art through hands-on experiments-from simulating evolution to encrypting messages to making machine-learning algorithms. Each chapter describes how randomness plays into the given topic area, then proceeds to demonstrate its problem-solving role with hands-on experiments to work through using Python code.

The need to create art is found in every human society, manifest in many different ways across many different cultures. Is this universal need rooted in our evolutionary past? The Art Instinct reveals that it is, combining evolutionary psychology with aesthetics to shed new light on fascinating questions about the nature of art.

A new take on our bio-cultural evolution explores how the "inner theatre" of the brain and its "animal-human stages" are reflected in and shaped by the mirror of cinema. Vampire, werewolf, and ape-planet films are perennial favorites—perhaps because they speak to something primal in human nature. This intriguing volume examines such films in light of the latest developments in neuroscience, revealing ways in which animal-human monster movies reflect and affect what we naturally imagine in our minds. Examining specific films (...) as well as early cave images, the book discusses how certain creatures on rock walls and movie screens express animal-to-human evolution and the structures of our brains. The book presents a new model of the human brain with its theatrical, cinematic, and animal elements. It also develops a theory of "rasa-catharsis" as the clarifying of emotions within and between spectators of the stage or screen, drawing on Eastern and Western aesthetics as well as current neuroscience. It focuses on the "inner movie theater" of memories, dreams, and reality representations, involving developmental stages, as well as the "hall of mirrors," ape-egos, and body-swapping identifications between human beings. Finally, the book shows how ironic twists onscreen—especially of contradictory emotions—might evoke a reappraisal of feelings, helping spectators to be more attentive to their own impulses. Through this interdisciplinary study, scholars, artists, and general readers will find a fresh way to understand the potential for interactive mindfulness and yet cathartic backfire between human brains—in cinema, in theater, and in daily life. (shrink)

The aim of the paper is to investigate paths along which a transformation of the doctrine of natural signs was developed in works by Paracelsians, forming one of the main religious and philosophic currents of Late Renaissance. The modifications of the doctrine are discussed in a context of intensive speculations on the essence of the primordial language of humankind and on the possibility of its restoration, which can describe the intellectual life of that epoch. It is argued that within “chemical (...) philosophy” the possibility of restoration of the Adamic language directly depends on mastering the art of interpreting natural signs, which can give a key to correct understanding of nature. And shifts in the conceptualization of such signatures involved transformations in formulating and solving of the Adamistic problems, which did not exclude reverse causation. It is also ascertained that the most orthodox followers of Paracelsus usually appealed to the Adamistic narrative in order to reinforce legitimacy of the symbolic hermeneutics of nature, developed with chiefly medico-pharmacological purposes. Meanwhile, relatively more independent Paracelsians often paid more attention to linguo-philosophic issues. Realizing the deficiency of the doctrine of signatures for reconstruction of the primordial language, they postulated the necessity of one of the following premises: supplementing the doctrine with a mystical illumination; acceptance of a weaker version, according to which natural signs are just sparse reference points slightly simplifying empirical study of nature; abandonment of search for the Ursprache and constructing its artificial substitute, a universal semiotic system. (shrink)

Résumé: L’image du “Dragon baignant le prince” est un thème important dans l’art bouddhique. L’image est née en Inde, et pendant le processus de propagation du bouddhisme vers l’est, elle est apparue dans le Xinjiang, le Gansu, le Qinghai, le Shanxi, le Shaanxi, le Henan, le Shandong, le Jiangsu, le Sichuan, le Tibet et d’autres endroits en Chine. Cependant, la forme et le contenu de ces images sont différents selon les régions et les périodes. L’étude de cette différence est non (...) seulement propice à la compréhension du processus de sinisation de l’art bouddhiste indien, mais approfondit également la compréhension du contenu spécifique de l’échange de l’art bouddhiste l’art entre la Chine et l’Inde. (shrink)

The role of evolutionary theory at the origin of life is an extensively debated topic. The origin and early development of life is usually separated into a prebiotic phase and a protocellular phase, ultimately leading to the Last Universal Common Ancestor. Most likely, the Last Universal Common Ancestor was subject to Darwinian evolution, but the question remains to what extent Darwinian evolution applies to the prebiotic and protocellular phases. In this review, we reflect on the current status of (...) evolutionary theory in origins of life research by bringing together philosophy of science, evolutionary biology, and empirical research in the origins field. We explore the various ways in which evolutionary theory has been extended beyond biology; we look at how these extensions apply to the prebiotic development of (proto)metabolism; and we investigate how the terminology from evolutionary theory is currently being employed in state-of-the-art origins of life research. In doing so, we identify some of the current obstacles to an evolutionary account of the origins of life, as well as open up new avenues of research. (shrink)

This paper focuses on the emergent neo-Jamesian perspective concerning the phenomenology of art and aesthetic experience. Starting from the distinction between nucleus and fringe in the stream of thought described by William James, it can be argued that our appreciation of a work of art is guided by a vague and blurred perception of a much more powerful content, of which we are not fully aware. Accordingly, a work of art is seen as a kind of metaphor of our mental (...) life, objectified to be able to reach out to a much larger audience. However, it is a “realistic” theory rooted in evolutionary psychology, which claims that our mind developed within a framework shaped by environmental pressures. The aesthetics illustrated by several novelists develops a paradigm for this theory. The search for the neuronal correlates of stream of consciousness allows to make a comparison with the recent findings of neuroaesthetics and to reject its claim that it is unnecessary to take phenomenology and psychology into account. (shrink)

An unmade bed. A cigarette glued to the wall. A replica of a soup can box. Drippings on a canvas. Can an evolutionary approach help us understand the production and appreciation of, sometimes perplexing, modern and contemporary art? This chapter attempts at this by investigating two hypotheses about the evolution of human aesthetics in the domain of art. The first hypothesis, commonly called evolutionary aesthetics, asserts that aesthetic preferences, such as those for particular faces, body shapes and animals, have (...) evolved in our ancestors because they motivated adaptive behavior. Artworks may exploit these ancestral aesthetic preferences. In contrast, the second hypothesis states that aesthetic preferences continuously coevolve with artworks, and that they are subject to learning from, especially prestigious, other individuals. We called this mechanism prestige-driven coevolutionary aesthetics. Here I report artistic fieldwork and psychological experiments we conducted. We found that while exploitation of ancestral aesthetic preferences prevails among non-experts, prestige-driven coevolutionary aesthetics dominate expert appreciation. I speculate that the latter mechanism can explain modern and contemporary art’s deviations from evolutionary aesthetics as well as the existence and persistence of its elusiveness. I also discuss the potential relevance of our findings to major fields studying aesthetics, that is, empirical aesthetics, and sociological and historical approaches to art. (shrink)

On the basis of a theoretical framework derived from grounded cognition and with reference to the available archaeological data concerning early art, this talk/article proposes an evolutionary conception of the aesthetic emotions, considered as an indispensable means that favored the emergence of the ordinary emotions in their modern version.

Through stories & narratives, listeners are invited to sort through the stories & beliefs that have been given meaning to their lives.