Recent years have seen a growing consensus in the philosophical community that the grandfather paradox and similar logical puzzles do not preclude the possibility of time travel scenarios that utilize spacetimes containing closed timelike curves. At the same time, physicists, who for half a century acknowledged that the general theory of relativity is compatible with such spacetimes, have intensely studied the question whether the operation of a time machine would be admissible in the context of the (...) same theory and of its quantum cousins. A time machine is a device which brings about closed timelike curves—and thus enables time travel—where none would have existed otherwise. The physics literature contains various no-go theorems for time machines, i.e., theorems which purport to establish that, under physically plausible assumptions, the operation of a time machine is impossible. We conclude that for the time being there exists no conclusive no-go theorem against time machines. The character of the material covered in this article makes it inevitable that its content is of a rather technical nature. We contend, however, that philosophers should nevertheless be interested in this literature for at least two reasons. First, the topic of time machines leads to a number of interesting foundations issues in classical and quantum theories of gravity; and second, philosophers can contribute to the topic by clarifying what it means for a device to count as a time machine, by relating the debate to other concerns such as Penrose's cosmic censorship conjecture and the fate of determinism in general relativity theory, and by eliminating a number of confusions regarding the status of the paradoxes of time travel. The present article addresses these ambitions in as non-technical a manner as possible, and the reader is referred to the relevant physics literature for details. (shrink)

This chapter discusses the problem of time in the thought of Bergson, showing how the evolution of the concept of duration is conducive to new developments in the philosophy of intuition. Duration, which in the Essay connotes the experience of a non-measurable lived experience, while in Matter and Memory it assumes rhythms of different intensities to justify the relationship between perception and memory, as well as in Creative Evolution is judged as the fabric of reality itself, in Duration and (...) Simultaneity it is posited not only as a criterion to discern what is real and what is artificial, but also to justify the measurement of reality, that is to say, to restore the point of contact between time as duration and space, that seemed previously compromised by the loss of ontological consistency of extension as the dimension of the body. In this paper, then, Bergson, also by virtue of a controversial, detailed comparison with the theory of relativity, finally arrives to support the hypothesis of a single temporal dimension, curved and dynamic, where space comes to be outlined as the abstract tangent of time. It is at this level, then, that it becomes possible to examine the emergence of the concepts within the meanders of intuition as concepts imbued with meaning: here is the primary source of that continuous “added” element of new nuclei of creativity that characterizes the very logic of Bergsonian living where what, as ideal relationship, is time, as a real relationship, becomes life, i.e., the continuous opening of a register in which time is inscribed, becoming incarnate thus in the very nature of every organism. (shrink)

This paper was originally presented at the annual meeting of the program board of the Division of Overseas Ministries of the National Council of Churches. It followed a discussion by Jorgen Randers showing the implications of present world trends in growth of population and industrialization, depletion of natural resources, rise in population, and full utilization of agricultural land. Referring to the two hours of his talk and the ensuing discussion, Randers said, “The entire purpose is to convince you that exponential (...) growth cannot go on forever in a world of fixed size.” Randers stressed that overtaxing of the natural environment is caused more by industrialization than by population. Industrial processes use natural resources and emit pollution. Capital‐intensive agriculture in time decreases the productivity of land. Limiting of capital accumulation is as necessary as limiting of population. World civilization must and will move from growth to equilibrium, either by human choice or by the pressure of natural and social forces.Many trade‐offs and choices lie before us in the approaching equilibrium. We can press forward along the historical growth curves, exceed the limits of the world environment, and endure a collapse of population and industrialization back to a level the world can support. Or we can choose a redirection of law, policies, and religions to create a smooth transition to world equilibrium. Even in choosing equilibrium, alternatives arise. The higher the population, the lower will be the achieveable standard of living and quality of life. Trade‐offs will be made consciously or implicitly between advantages in the immediate future compared to advantages in the distant future. An inherent conflict exists between time horizons. Choosing to maximize the present quality of life condemns future generations to suffer for their predecessors' advantage.The reader should, if possible, read first any of those cited in notes1, 2, or 6 listed at the end of this paper before reading the following text, —J A Y W. FORRESTER. (shrink)

In the automatic detection of epileptic seizures, the monitoring of critically ill patients with time varying EEG signals is an essential procedure in intensive care units. There is an increasing interest in using EEG analysis to detect seizure, and in this study we aim to get a better understanding of how to visualize the information in the EEG time-frequency feature, and design and train a novel random forest algorithm for EEG decoding, especially for multiple-levels of illness. Here, we (...) propose an automatic detection framework for epileptic seizure based on multiple time-frequency analysis approaches; it involves a novel random forest model combined with grid search optimization. The short-time Fourier transformation visualizes seizure features after normalization. The dimensionality of features is reduced through principal component analysis before feeding them into the classification model. The training parameters are optimized using grid search optimization to improve detection performance and diagnostic accuracy by in the recognition of three different levels epileptic of conditions (healthy subjects, seizure-free intervals, seizure activity). Our proposed model was used to classify 500 samples of raw EEG data, and multiple cross-validations were adopted to boost the modeling accuracy. Experimental results were evaluated by an accuracy, a confusion matrix, a receiver operating characteristic curve and an area under the curve. The evaluations indicated that our model achieved the more effective classification than some previous typical methods. Such a scheme for computer-assisted clinical diagnosis of seizures has a potential guiding significance, which not only relieves the suffering of patient with epilepsy to improve quality of life, but also helps neurologists reduce their workload. (shrink)

With the increasing prevalence of Internet usage, Internet-Delivered Psychological Treatment (IDPT) has become a valuable tool to develop improved treatments of mental disorders. IDPT becomes complicated and labor intensive because of overlapping emotion in mental health. To create a usable learning application for IDPT requires diverse labeled datasets containing an adequate set of linguistic properties to extract word representations and segmentations of emotions. In medical applications, it is challenging to successfully refine such datasets since emotion-aware labeling is time consuming. (...) Other known issues include vocabulary sizes per class, data source, method of creation, and baseline for the human performance level. This paper focuses on the application of personalized mental health interventions using Natural Language Processing (NLP) and attention-based in-depth entropy active learning. The objective of this research is to increase the trainable instances using a semantic clustering mechanism. For this purpose, we propose a method based on synonym expansion by semantic vectors. Semantic vectors based on semantic information derived from the context in which it appears are clustered. The resulting similarity metrics help to select the subset of unlabeled text by using semantic information. The proposed method separates unlabeled text and includes it in the next active learning mechanism cycle. Our method updates model training by using the new training points. The cycle continues until it reaches an optimal solution, and it converts all the unlabeled text into the training set. Our in-depth experimental results show that the synonym expansion semantic vectors help enhance training accuracy while not harming the results. The bidirectional Long Short-Term Memory (LSTM) architecture with an attention mechanism achieved 0.85 Receiver Operating Characteristic (ROC curve) on the blind test set. The learned embedding is then used to visualize the activated word's contribution to each symptom and find the psychiatrist's qualitative agreement. Our method improves the detection rate of depression symptoms from online forum text using the unlabeled forum texts. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Aesthetic Education 38.2 (2004) 80-87 [Access article in PDF] The Beauty of Henri Matisse David Carrier Because beauty has for a long time now been politically incorrect (at least among certain influential critics and academic historians) the art of Henri Matisse has recently suffered from a kind of benign neglect. His goals were luxury, calm, and voluptuousness, not social critique. He painted female nudes, and (...) was preoccupied with artistic tradition. Celebrated in his own lifetime, he died a rich man. Matisse's famous identification of the work of art with a good armchair is another provocation. His paintings, after all, are very expensive armchairs. Liberated from any vital connection with everyday life, they often seem merely escapist. In her recent book, On Beauty and Being Just, Elaine Scarry remarks, "Matisse never hoped to save lives. But he repeatedly said that he wanted to make paintings so serenely beautiful that when one came upon them, suddenly all problems would subside."1 That some of Matisse's paintings succeed in being serenely beautiful seems self-evident to Scarry, to me, and to a great many other art lovers. What is perhaps worth exploring at greater length, however, is precisely how Matisse's paintings succeed in achieving their unfashionable goal. What is it that makes the work of Matisse so serenely beautiful?To start, consider The Painter and His Model (1918-1921), made just after his move from Paris to Nice. Like other works from this period of his career, this picture raises special problems, even for many commentators who admire his earlier experimentation. At the left, we see the painter working on a canvas of a nude. "Expression, for me," Matisse wrote, "does not reside in passions glowing in a human face."2 Like most of his models, this one appears expressionless. She poses at the center of the picture, beneath a window that admits the light filling the room. A flowering palm, a symbol of fertility, is the only object visible from the world outside the studio.Leaving behind his family and the luxury of his Paris home, Matisse lived and worked in a small room like this one. The entire picture is filled [End Page 80] with patterns — a red tablecloth on the left, orange wallpaper on the right, blue stripes on the painter's shirt, a red grid on the floor. A dark painting hangs above flowers on the table. The Painter and His Model shows the artist hard at work, but the composition appears effortlessly spontaneous. Matisse, who lived only to paint during his time in Nice, concealed the endless effort required to make his beautiful pictures. A man from North France, he discovered the power of light. There is nothing special about this room, but under the spell of his model Matisse makes it appear ravishing. Intense Mediterranean sunlight transforms ordinary patterns into a world of visual luxury.We know that The Painter and His Model is beautiful because we get great pleasure seeing the model in the golden room. Her skin is close in tone to, or in harmony with the colors of the walls; her curves harmonize with the two vases, and play against the spreading linear grids. As we move our eyes easily from the model to the entire picture, we experience a kind of sublimated erotic pleasure. In "Notes of a Painter," Matisse gave an apt description of his approach in The Painter and His Model. Suppose I want to paint a woman's body: first of all I imbue it with grace and charm, but I know that I must give something more. I will condense the meaning of this body by seeking its essential lines. The charm will be less apparent at first glance, but it must eventually emerge from the new image which will have a broader meaning, one more fully human. (MA, 36) He does not use the word "beauty," but speaks instead about expression and harmony. When he published this manifesto, Matisse was painting very different sorts of pictures — portraits, scenes of nudes in utopian settings, and... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Aesthetic Education 38.2 (2004) 80-87 [Access article in PDF] The Beauty of Henri Matisse David Carrier Because beauty has for a long time now been politically incorrect (at least among certain influential critics and academic historians) the art of Henri Matisse has recently suffered from a kind of benign neglect. His goals were luxury, calm, and voluptuousness, not social critique. He painted female nudes, and (...) was preoccupied with artistic tradition. Celebrated in his own lifetime, he died a rich man. Matisse's famous identification of the work of art with a good armchair is another provocation. His paintings, after all, are very expensive armchairs. Liberated from any vital connection with everyday life, they often seem merely escapist. In her recent book, On Beauty and Being Just, Elaine Scarry remarks, "Matisse never hoped to save lives. But he repeatedly said that he wanted to make paintings so serenely beautiful that when one came upon them, suddenly all problems would subside."1 That some of Matisse's paintings succeed in being serenely beautiful seems self-evident to Scarry, to me, and to a great many other art lovers. What is perhaps worth exploring at greater length, however, is precisely how Matisse's paintings succeed in achieving their unfashionable goal. What is it that makes the work of Matisse so serenely beautiful?To start, consider The Painter and His Model (1918-1921), made just after his move from Paris to Nice. Like other works from this period of his career, this picture raises special problems, even for many commentators who admire his earlier experimentation. At the left, we see the painter working on a canvas of a nude. "Expression, for me," Matisse wrote, "does not reside in passions glowing in a human face."2 Like most of his models, this one appears expressionless. She poses at the center of the picture, beneath a window that admits the light filling the room. A flowering palm, a symbol of fertility, is the only object visible from the world outside the studio.Leaving behind his family and the luxury of his Paris home, Matisse lived and worked in a small room like this one. The entire picture is filled [End Page 80] with patterns — a red tablecloth on the left, orange wallpaper on the right, blue stripes on the painter's shirt, a red grid on the floor. A dark painting hangs above flowers on the table. The Painter and His Model shows the artist hard at work, but the composition appears effortlessly spontaneous. Matisse, who lived only to paint during his time in Nice, concealed the endless effort required to make his beautiful pictures. A man from North France, he discovered the power of light. There is nothing special about this room, but under the spell of his model Matisse makes it appear ravishing. Intense Mediterranean sunlight transforms ordinary patterns into a world of visual luxury.We know that The Painter and His Model is beautiful because we get great pleasure seeing the model in the golden room. Her skin is close in tone to, or in harmony with the colors of the walls; her curves harmonize with the two vases, and play against the spreading linear grids. As we move our eyes easily from the model to the entire picture, we experience a kind of sublimated erotic pleasure. In "Notes of a Painter," Matisse gave an apt description of his approach in The Painter and His Model. Suppose I want to paint a woman's body: first of all I imbue it with grace and charm, but I know that I must give something more. I will condense the meaning of this body by seeking its essential lines. The charm will be less apparent at first glance, but it must eventually emerge from the new image which will have a broader meaning, one more fully human. (MA, 36) He does not use the word "beauty," but speaks instead about expression and harmony. When he published this manifesto, Matisse was painting very different sorts of pictures — portraits, scenes of nudes in utopian settings, and... (shrink)

The challenges with modeling the spread of Covid-19 are its power-type growth during the middle stages of the waves with the exponents depending on time, and that the saturation of the waves is mainly due to the protective measures and other restriction mechanisms working in the same direction. The two-phase solution we propose for modeling the total number of detected cases of Covid-19 describes the actual curves for many its waves and in many countries almost with the accuracy (...) of physics laws. Bessel functions play the key role in our approach. The differential equations we obtain are of universal type and can be used in behavioral psychology, invasion ecology (transient processes), etc. The initial transmission rate and the intensity of the restriction mechanisms are the key parameters. This theory provides a convincing explanation of the surprising uniformity of the Covid-19 waves in many places, and can be used for forecasting the epidemic spread. For instance, the early projections for the 3rd wave in the USA appeared sufficiently exact. The Delta-waves (2021) in India, South Africa, UK, and the Netherlands are discussed at the end. (shrink)

Background Individual physicians and physician-associated factors may influence patients’/surrogates’ autonomous decision-making, thus influencing the practice of do-not-resuscitate orders. The objective of this study was to examine the influence of individual attending physicians on signing a DNR order. Methods This study was conducted in closed model, surgical intensive care units in a university-affiliated teaching hospital located in Northern Taiwan. The medical records of patients, admitted to the surgical intensive care units for the first time between June 1, 2011 and December (...) 31, 2013 were reviewed and data collected. We used Kaplan–Meier survival curves with log-rank test and multivariate Cox proportional hazards models to compare the time from surgical intensive care unit admission to do-not-resuscitate orders written for patients for each individual physician. The outcome variable was the time from surgical ICU admission to signing a DNR order. Results We found that each individual attending physician’s likelihood of signing do-not-resuscitate orders for their patients was significantly different from each other. Some attending physicians were more likely to write do-not-resuscitate orders for their patients, and other attending physicians were less likely to do so. Conclusion Our study reported that individual attending physicians had influence on patients’/surrogates’ do-not-resuscitate decision-making. Future studies may be focused on examining the reasons associated with the difference of each individual physician in the likelihood of signing a do-not-resuscitate order. (shrink)

Music rhythm detection and tracking is an important part of the music comprehension system and visualization system. The music signal is subjected to a short-time Fourier transform to obtain the frequency spectrum. According to the perception characteristics of the human auditory system, the spectrum amplitude is logarithmically processed, and the endpoint intensity curve and the phase information of the peak value are output through half-wave rectification. The Pulse Code Modulation characteristic value is extracted according to the autocorrelation characteristic (...) of the endpoint intensity curve. This article proposes a rhythm detection algorithm based on multipath search and cluster analysis; that is, based on the clustering algorithm, it absorbs the idea of multipath tracking and proposes its own detection and tracking algorithm. It overcomes the weakness of the clustering algorithm that needs to use Musical Instrument Digital Interface auxiliary input to achieve the desired effect. This algorithm completely uses the PCM signal as the input, which is more robust than the clustering algorithm. The whole process is carried out in the time domain, and the amount of calculation is much smaller than the frequency domain calculation of multipath tracking, and the linear relationship with the rhythm of the music is much better than the filter bank algorithm. This algorithm can successfully detect the rhythm of the music with a strong sense of rhythm and can track the specific position of the rhythm point. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Journal of Aesthetic Education 38.2 (2004) 80-87 [Access article in PDF] The Beauty of Henri Matisse David Carrier Because beauty has for a long time now been politically incorrect (at least among certain influential critics and academic historians) the art of Henri Matisse has recently suffered from a kind of benign neglect. His goals were luxury, calm, and voluptuousness, not social critique. He painted female nudes, and (...) was preoccupied with artistic tradition. Celebrated in his own lifetime, he died a rich man. Matisse's famous identification of the work of art with a good armchair is another provocation. His paintings, after all, are very expensive armchairs. Liberated from any vital connection with everyday life, they often seem merely escapist. In her recent book, On Beauty and Being Just, Elaine Scarry remarks, "Matisse never hoped to save lives. But he repeatedly said that he wanted to make paintings so serenely beautiful that when one came upon them, suddenly all problems would subside."1 That some of Matisse's paintings succeed in being serenely beautiful seems self-evident to Scarry, to me, and to a great many other art lovers. What is perhaps worth exploring at greater length, however, is precisely how Matisse's paintings succeed in achieving their unfashionable goal. What is it that makes the work of Matisse so serenely beautiful?To start, consider The Painter and His Model (1918-1921), made just after his move from Paris to Nice. Like other works from this period of his career, this picture raises special problems, even for many commentators who admire his earlier experimentation. At the left, we see the painter working on a canvas of a nude. "Expression, for me," Matisse wrote, "does not reside in passions glowing in a human face."2 Like most of his models, this one appears expressionless. She poses at the center of the picture, beneath a window that admits the light filling the room. A flowering palm, a symbol of fertility, is the only object visible from the world outside the studio.Leaving behind his family and the luxury of his Paris home, Matisse lived and worked in a small room like this one. The entire picture is filled [End Page 80] with patterns — a red tablecloth on the left, orange wallpaper on the right, blue stripes on the painter's shirt, a red grid on the floor. A dark painting hangs above flowers on the table. The Painter and His Model shows the artist hard at work, but the composition appears effortlessly spontaneous. Matisse, who lived only to paint during his time in Nice, concealed the endless effort required to make his beautiful pictures. A man from North France, he discovered the power of light. There is nothing special about this room, but under the spell of his model Matisse makes it appear ravishing. Intense Mediterranean sunlight transforms ordinary patterns into a world of visual luxury.We know that The Painter and His Model is beautiful because we get great pleasure seeing the model in the golden room. Her skin is close in tone to, or in harmony with the colors of the walls; her curves harmonize with the two vases, and play against the spreading linear grids. As we move our eyes easily from the model to the entire picture, we experience a kind of sublimated erotic pleasure. In "Notes of a Painter," Matisse gave an apt description of his approach in The Painter and His Model. Suppose I want to paint a woman's body: first of all I imbue it with grace and charm, but I know that I must give something more. I will condense the meaning of this body by seeking its essential lines. The charm will be less apparent at first glance, but it must eventually emerge from the new image which will have a broader meaning, one more fully human. (MA, 36) He does not use the word "beauty," but speaks instead about expression and harmony. When he published this manifesto, Matisse was painting very different sorts of pictures — portraits, scenes of nudes in utopian settings, and... (shrink)

Notoriously, the Einstein equations of general relativity have solutions in which closed timelike curves occur. On these curves time loops back onto itself, which has exotic consequences: for example, traveling back into one's own past becomes possible. However, in order to make time travel stories consistent constraints have to be satisfied, which prevents seemingly ordinary and plausible processes from occurring. This, and several other "unphysical" features, have motivated many authors to exclude solutions with CTCs from consideration, (...) e.g. by conjecturing a chronology protection law. In this contribution we shall investigate the nature of one particular class of exotic consequences of CTCs, namely those involving unexpected cases of indeterminism or determinism. Indeterminism arises even against the backdrop of the usual deterministic physical theories when CTCs do not cross spacelike hypersurfaces outside of a limited CTC-region|such hypersurfaces fail to be Cauchy surfaces. We shall compare this CTC-indeterminism with four other types of indeterminism that have been discussed in the philosophy of physics literature: quantum indeterminism, the indeterminism of the hole argument, non-uniqueness of solutions of differential equations and lack of predictability due to insuffcient data. By contrast, a certain kind of determinism appears to arise when an indeterministic theory is applied on a CTC: things cannot be different from what they already were. Again we shall make comparisons, this time with other cases of determination in physics. We shall argue that on further consideration both this indeterminism and determinism on CTCs turn out to possess analogues in other, familiar areas of physics. CTC- indeterminism is close to the epistemological indeterminism we know from statistical physics, while the "fixedness" typical of CTC-determinism is pervasive in physics. CTC- determinism and CTC-indeterminism therefore do not provide incontrovertible grounds for rejecting CTCs as conceptually inadmissible. (shrink)

Motivated by the search for a Hamiltonian formulation of Einstein equations of gravity which depends in a minimal way on choices of coordinates, nor on a choice of gauge, we develop a multisymplectic formulation on the total space of the principal bundle of orthonormal frames on the 4-dimensional space-time. This leads quite naturally to a new theory which takes place on 10-dimensional manifolds. The fields are pairs of \,\varpi )\), where \\) is a 1-form with coefficients in the Lie (...) algebra of the Poincaré group and \ is an 8-form with coefficients in the dual of this Lie algebra. The dynamical equations derive from a simple variational principle and imply that the 10-dimensional manifold looks locally like the total space of a fiber bundle over a 4-dimensional base manifold. Moreover this base manifold inherits a metric and a connection which are solutions of a system of Einstein–Cartan equations. (shrink)

The simplest case of quantum field theory on curved spacetime—that of the Klein–Gordon field on a globally hyperbolic spacetime—reveals a dilemma: In generic circumstances, either there is no dynamics for this quantum field, or else there is a dynamics that is not unitarily implementable. We do not try to resolve the dilemma here, but endeavour to spell out the consequences of seizing one or the other horn of the dilemma.

Publication date: 16 April 2018 Source: Author: Parto Fazli, Ebrahim Abbasi The objective of the study is to test experimentally the Kuznets curve of energy intensity in selected developing countries with the focus of D-8 countries during 1990-2014. According to the results, and by using the static and dynamic estimators and the Panel- ARDL model, the Kuznets curve was accepted for energy intensity and the per capita income threshold was estimated $3931.25. The urbanization rate and the degree of (...) industrialization have a positive and significant effect on the GDP of consuming energy of D-8 countries in the long term. The most important policy recommendations were discussed for policy-makers and researchers. (shrink)

BackgroundThe Authors have laid out an analysis of Italian COVID-19 confirmed data and fatality rates, pointing out how a dearth of health care resources in northern regions has resulted in hard, ethically challenging decisions in terms of granting patient access to intensive care units (ICU).Main textHaving to make such decisions certainly entails substantial difficulties, and that has led many health care professional to seek ethical guidance. The Italian Society of Anesthesia, Analgesia, Resuscitation and Intensive Care (SIAARTI) has attempted to meet (...) that growing need by a set of recommendations, applying “clinical soundness” as a beacon standard; that approach tends to prioritize patients with higher life expectancy, which could be characterized as a “moderately utilitarian” approach. Yet, such a selection has engendered daunting ethical quandaries. The authors believe it can only be warranted and acceptable if rooted in a transparent decision-making process and verifiable, reviewed criteria. Moreover, the authors have stressed how clinical experimentation in a pandemic setting is a subtext of great interest from an ethical perspective. In Italy, no drug therapy and trials were undertaken for COVID-19 patients for a rather long period of time. When the epidemic was already circulating, an intervention proved necessary on the system of administrative procedures, aimed at expediting the authorization and validation of protocols, then bogged down by bureaucracy. A new system has since been instituted by a government decree that was signed about one month after the first Covid-19 case was officially recorded in the country. Such a swift implementation, which took just a few weeks, is noteworthy and proves that clinical trials can be initiated in a timely fashion, even with a pandemic unfolding. The concerted, action of supportive care and RCTs is the only way to attain effective forms of treatments for COVID-19 and any other future outbreak.ConclusionsThe authors have arrived at the conclusion that the most effective and ethically sound response on the part of any national health care system would be to adequately reconfigure its organizational mechanisms, by making clinical trials and all related administrative procedures consistent with the current state of emergency. (shrink)

Negative prognostic communication is often delayed in intensive care units, which limits time for families to prepare for end‐of‐life. This descriptive study, informed by ethnographic methods, was focused on exploring critical care physician communication of negative prognoses to families and identifying timing influences. Prognostic communication of critical care physicians to nurses and family members was observed and physicians and family members were interviewed. Physician perception of prognostic certainty, based on an accumulation of empirical data, and the perceived need for (...) decision‐making, drove the timing of prognostic communication, rather than family needs. Although prognoses were initially identified using intuitive knowledge for patients in one of the six identified prognostic categories, utilizing decision‐making to drive prognostic communication resulted in delayed prognostic communication to families until end‐of‐life (EOL) decisions could be justified with empirical data. Providers will better meet the needs of families who desire earlier prognostic information by separating prognostic communication from decision‐making and communicating the possibility of a poor prognosis based on intuitive knowledge, while acknowledging the uncertainty inherent in prognostication. This sets the stage for later prognostic discussions focused on EOL decisions, including limiting or withdrawing treatment, which can be timed when empirical data substantiate intuitive prognoses. This allows additional time for families to anticipate and prepare for end‐of‐life decision‐making. (shrink)

BackgroundWithholding and withdrawing treatment are deemed ethically equivalent by most Bioethicists, but intensivists often find withdrawing more difficult in practice. This can lead to futile treatment being prolonged. Time-limited trials have been proposed as a way of promoting timely treatment withdrawal whilst giving the patient the greatest chance of recovery. Despite being in UK guidelines, time-limited trials have been infrequently implemented on Intensive Care Units. We will explore the role of time in Intensive Care Unit decision-making and (...) provide a UK perspective on debates surrounding time-limited trials.MethodsThis qualitative study recruited 18 participants (nine doctors, nine nurses) from two Intensive Care Units in North West England for in-depth, one-to-one semi-structured interviews. A thematic analysis was performed of the data.ResultsOur findings show time is utilised by Intensive Care Unit staff in a variety of ways including managing uncertainty when making decisions about a patient’s prognosis or the reversibility of a disease, constructing relationships with patients’ relatives, communicating difficult messages to patients’ relatives, justifying resource allocation decisions to colleagues, and demonstrating compassion towards patients and their families.ConclusionsTime shifts the balance towards greater certainty in Intensive Care Unit decision-making, by demonstrating futility, and can ease the difficult transition for staff and families from active treatment to palliation. However, this requires clear and open communication, both within the Intensive Care Unit team and with the family, being prioritised when time is used in decision-making. (shrink)

Can green growth policies help protect the environment while keeping the industry growing and infrastructure expanding? The City of Kitakyushu, Japan, has actively implemented eco-friendly policies since 1967 and recently inspired the pursuit of sustainable development around the world, especially in the Global South region. However, empirical studies on the effects of green growth policies are still lacking. This study explores the relationship between road infrastructure development and average industrial firm size with air pollution in the city through the Environmental (...) Kuznets Curve (EKC) hypothesis. Auto-Regressive Distributed Lag (ARDL) and Non-linear Auto-Regressive Distributed Lag (NARDL) methods were applied on nearly 50-years’ time series data, from 1967 to 2015. The results show that the shape of the EKC of industrial growth, measured by average firm size, depends on the type of air pollution: inverted N-shaped relationships with NO2 and CO, and the U-shaped relationships with falling dust particle and Ox. Regarding infrastructure development, on the one hand, our analysis shows a positive effect of road construction on alleviating the amount of falling dust and CO concentration. On the other hand, the emissions of NO2 and Ox are shown to rise when plotted against road construction. The decline of CO emission, when plotted against both industrial growth and road development, indicates that the ruthlessness of the local government in pursuing green growth policies is effective in this case. However, the story is not straightforward when it comes to other air pollutants, which hint at limits in the current policies. The case of Kitakyushu illustrates the complex dynamics of the interaction among policy, industry, infrastructure, and air pollution. It can serve as an important reference point for other cities in the Global South when policies are formed, and progress is measured in the pursuit of a green economy. Finally, as an OECD SDGs pilot city and the leading Asian green-growth city, policymakers in Kitakyushu city are recommended to revise the data policy to enhance the findability and interoperability of data as well as to invest in the application of big data. (shrink)

Gödel’s contention that closed timelike curves (CTC’s) are a necessary consequence of the Einstein equations for his metric is challenged. It is seen that the imposition of periodicity in a timelike coordinate is the actual source of CTC’s rather than the physics of general relativity. This conclusion is supported by the creation of Gödel-like CTC’s in flat space by the correct choice of coordinate system and identifications. Thus, the indications are that the notion of a time machine remains (...) exclusively an aspect of science fiction fantasy. The element of the identification of spacetime points is also seen to be the essential factor in the modern creation of CTC’s in the Gott model of moving cosmic strings. (shrink)

A nonlinear partial differential equation is derived which admits plane solitary waves on a conformally flat Riemannian space-time. The metric is determined by the amplitude of these waves. By interpreting these solitary waves as particles we arrive at the following picture: these particles are confined to regions exhibiting singular (very large) amplitudes in an otherwise continuous wavetrain. There is, thus, no distinction between the notion of a particle and that of a wave.

The main topic of my paper concerns the theological-philosophical nexus between the intensive and qualitative spatiality of the Monad and the Origenian idea of Apokatastasis as a nexus that can clarify Benjamin's latest idea of the Messianic World. The first step will be, therefore, to explain Benjamin's use of the Origenian notion of Apokatastasis in his Essay on Leskov and in the Passagenwerk. Secondly, I will discuss how and to what extent such use is relevant for Benjamin's idea of Messianism. (...) Thirdly, I will propose the thesis that, for Benjamin, a messianic idea of time implies a monadological idea of space. In this regard, the relationship between continuity and discontinuity, which is crucial to understand the late Benjamin's idea of history, must be understood precisely as a dialectical relationship that involves not only time but also space. The figure of intermittence – as we shall see – expresses in the most suitable way the intertwining of space and time as dialectically and messianicaly oriented. This sequence of logical steps and critical considerations will shed light on the true nature of Benjamin's idea of dialectics and on its relationship to the idea of the totality. The real term of confrontation of Benjamin's late philosophy does not concern, therefore, Heidegger, but Hegel. In the light of this confrontation, Heidegger's Being and Time is already in pieces. It is as it were – we can say – behind Benjamin's movement of thought. (shrink)

The decision-making environment in intensive care units (ICUs) is influenced by the transformation of intensive care medicine, the staffing situation and the increasing importance of patient autonomy. Normative implications of time in intensive care, which affect all three areas, have so far barely been considered. The study explores patterns of decision making concerning the continuation, withdrawal and withholding of therapies in intensive care. A triangulation of qualitative data collection methods was chosen. Data were collected through non-participant observation on a (...) surgical ICU at an academic medical centre followed by semi-structured interviews with nurses and physicians. The transcribed interviews and observation notes were coded and analysed using qualitative content analysis according to Mayring. Three themes related to time emerged regarding the escalation or de-escalation of therapies: influence of time on prognosis, time as a scarce resource and timing in regards to decision making. The study also reveals the ambivalence of time as a norm for decision making. The challenge of dealing with time-related efforts in ICU care results from the tension between the need to wait to optimise patient care, which must be balanced against the significant time pressure which is characteristic of the ICU setting. (shrink)

If two stimuli need different times to be processed, this difference should in principle be reflected both by response times (RT) and by judgments of their temporal order (TOJ). However, several dissociations have been reported between RT and TOJ, e.g., RT is more affected than TOJ when stimulus intensity decreases. One account for these dissociations is to assume differences in the allocation of attention induced by the two tasks. To test this hypothesis, different distributions of attention were induced in (...) the present study between two stimulus positions (above and below fixation). Only bright stimuli appeared in one position and either bright or dim stimuli in the other. In the two RT experiments, participants had to respond to every stimulus appearing in one of the two positions. Reaction times to bright stimuli were faster when they appeared in the position where dim stimuli were likely to occur. This finding suggests that the allocation of attention was adapted to the asymmetrical arrangement of stimuli, not suggested by explicit instruction. In the two TOJ experiments, the temporal order of stimuli appearing in the two positions had to be judged. Although bright stimuli appearing at the bright-and-dim location were judged to be earlier, this effect was small and insignificant. Further, the intensity dissociation between RT and TOJ was insensitive to random vs blockwise presentations of intensities, therefore was not modified by attentional preferences. Thus, asymmetrical arrangement of stimuli has an impact on the allocation of attention, but only in the RT task. Therefore dissociations between TOJ and response times cannot be accounted for by an attentional bias in the TOJ task but probably by different use of temporal information in the two tasks. (shrink)

The following essay compares and contrasts Martin Heidegger’s Being and Time with an earlier lecture course that he delivered in the Winter Semester of 1919/2020 entitled Basic Problems of Phenomenology. Heidegger says explicitly that the pre-phenomenal basis for his analysis in Being and Time is “entities” in their equipmental totality. He calls these the “preliminary theme” for his analysis of Dasein. While the analytic of Dasein is the first step in posing the question of Being, the pre-phenomenal basis (...) for the analytic of Dasein is, he says, “entitities” or “equipment”. I argue that this can lead to certain misunderstandings, especially when he talks about nature and human relationships. In Basic Problems, Heidegger’s focus is not on “entities” or “equipment” but rather on experiences. In this earlier work, he is trying to develop a language that can capture the intensity of lived-experience, suggesting an experiential vibrancy to Dasein that is implicit but not thematized in Being and Time. I aim to show that while Heidegger turns away from the term “life” in Being and Time, his understanding of Dasein can still draw on the intensity and immediacy of experience so prominent in this early lecture course. (shrink)

Many countries have adopted new triage recommendations for use in the event that intensive care beds become scarce during the COVID‐19 pandemic. In addition to establishing the exact criteria regarding whether treatment for a newly arriving patient shows a sufficient likelihood of success, it is also necessary to ask whether patients already undergoing treatment whose prospects are low should be moved into palliative care if new patients with better prospects arrive. This question has led to divergent ethical guidelines. This paper (...) explores the distinction between withholding and withdrawing medical treatment during times of scarcity. As a first central point, the paper argues that a revival of the ethical distinction between doing and allowing would have a revisionary impact on cases of voluntary treatment withdrawal. A second systematic focus lies in the concern that withdrawal due to scarcity might be considered a physical transgression and therefore more problematic than not treating someone in the first place. In light of the persistent disagreement, especially concerning the second issue, the paper concludes with two pragmatic proposals for how to handle the ethical uncertainty: (1) triage protocols should explicitly require that intensive care attempts are designed as time‐limited trials based on specified treatment goals, and this intent should be documented very clearly at the beginning of each treatment; and (2) lower survival prospects can be accepted for treatments that have already begun, compared with the respective triage rules for the initial access of patients to intensive care. (shrink)

Relativity allegedly contradicts presentism, the dynamic view of time and reality, according to which temporal passage is conceived of as an existentially distinguished ‘moving’ now. Against this common belief, the paper motivates a presentist interpretation of spacetime: It is argued that the fundamental concept of time—proper time—cannot be characterized by the earlier-later relation, i.e., not in the B-theoretical sense. Only the presentist can provide a temporal understanding of the twins’ paradox and of universes with closed timelike (...) class='Hi'>curves. (shrink)

Decades of research conducted in Western, Educated, Industrialized, Rich, & Democratic (WEIRD) societies have led many scholars to conclude that the use of mental states in moral judgment is a human cognitive universal, perhaps an adaptive strategy for selecting optimal social partners from a large pool of candidates. However, recent work from a more diverse array of societies suggests there may be important variation in how much people rely on mental states, with people in some societies judging accidental harms just (...) as harshly as intentional ones. To explain this variation, we develop and test a novel cultural evolutionary theory proposing that the intensity of kin-based institutions will favor less attention to mental states when judging moral violations. First, to better illuminate the historical distribution of the use of intentions in moral judgment, we code and analyze anthropological observations from the Human Area Relations Files. This analysis shows that notions of strict liability—wherein the role for mental states is reduced—were common across diverse societies around the globe. Then, by expanding an existing vignette-based experimental dataset containing observations from 321 people in a diverse sample of 10 societies, we show that the intensity of a society's kin-based institutions can explain a substantial portion of the population-level variation in people's reliance on intentions in three different kinds of moral judgments. Together, these lines of evidence suggest that people's use of mental states has coevolved culturally to fit their local kin-based institutions. We suggest that although reliance on mental states has likely been a feature of moral judgment in human communities over historical and evolutionary time, the relational fluidity and weak kin ties of today's WEIRD societies position these populations' psychology at the extreme end of the global and historical spectrum. (shrink)