Many models have posited that the concomitant evolution of large brains and body sizes in hominins was constrained by metabolic costs. In such studies, the impact of body temperature has arguably not been sufficiently addressed despite the well-established fact that the rates of most physiological processes are manifestly temperature-dependent. Hence, the potential role of body temperature in regulating the number of neurons and body size is investigated by means of a heuristic quantitative model. (...) It is suggested that modest deviations in body temperature might allow for substantive changes in brain and body parameters. In particular, a higher body temperature may prove amenable to an increased number of neurons, a higher brain-to-body mass ratio and fewer hours expended on feeding activities, while the converse could apply when the temperature is lowered. Future studies should, therefore, endeavor to explore and incorporate the effects of body temperature in metabolic theories of hominin evolution, while also integrating other factors such as foraging efficiency, diet, and fire control in tandem. (shrink)

The circadian clock is a cell autonomous oscillator that controls many aspects of physiology through generating rhythmic gene expression in a time of day dependent manner. In addition, in endothermic mammals body temperature cycles contribute to rhythmic gene expression. These body temperature‐controlled rhythms are hard to distinguish from classic circadian rhythms if analyzed in vivo in endothermic organisms. However, they do not fulfill all criteria of being circadian if analyzed in cell culture or in conditions where (...) body temperature of an endothermic organism can be manipulated. Here we review and compare these characteristics, discuss the core clock independent mechanism of temperature‐controlled alternative splicing and highlight the requirement of double‐checking rhythms that appear circadian within an endothermic organism in a system that allows temperature manipulation. (shrink)

In this paper, we report on an experiment with The Walking Dead (TWD), which is a narrative-driven adventure game with morally charged decisions set in a post-apocalyptic world filled with zombies. This study aimed to identify physiological markers of moral decisions and non-moral decisions using infrared thermal imaging (ITI). ITI is a non-invasive tool used to capture thermal variations due to blood flow in specific body regions that might be caused by sympathetic activity. Results show that moral decisions seem (...) to elicit a significant decrease in temperature in the chin region 20 seconds after participants are presented with a moral decision. However, given the small sample involved, and the lack of significance in other regions, future studies might be needed to confirm the results obtained in this work. (shrink)

Two prevailing paradigms explain the diversity of sex-determining modes in reptiles. Many researchers, particularly those who study reptiles, consider genetic and environmental sex-determining mechanisms to be fundamentally different, and that one can be demonstrated experimentally to the exclusion of the other. Other researchers, principally those who take a broader taxonomic perspective, argue that no clear boundaries exist between them. Indeed, we argue that genetic and environmental sex determination in reptiles should be seen as a continuum of states represented by species (...) whose sex is determined primarily by genotype, species where genetic and environmental mechanisms coexist and interact in lesser or greater measure to bring about sex phenotypes, and species where sex is determined primarily by environment. To do otherwise limits the scope of investigations into the transition between the two and reduces opportunities to use studies of reptiles to advance understanding of vertebrate sex determination generally. © 2004 Wiley Periodicals, Inc. (shrink)

Taking the formal analogies between black holes and classical thermodynamics seriously seems to first require that classical thermodynamics applies in relativistic regimes. Yet, by scrutinizing how classical temperature is extended into special relativity, I argue that the concept falls apart. I examine four consilient procedures for establishing the classical temperature: the Carnot process, the thermometer, kinetic theory, and black-body radiation. I argue that their relativistic counterparts demonstrate no such consilience in defining the relativistic temperature. As such, (...) classical temperature doesn’t appear to survive a relativistic extension. I suggest two interpretations for this situation: eliminativism akin to simultaneity, or pluralism akin to rotation. (shrink)

In the Sahara, there is a species of silver ants with coats precisely calibrated to adapt to the harsh landscape around them. Their tiny radiant armor is made of triangular, reflective hairs on their midsection that dissipate heat through thermal radiation, thus enabling them to survive in the greater than 150 degrees Fahrenheit temperatures during the twenty minutes or so each day when they leave their nests. By midcentury such examples of extreme adaptation may have increasing significance for us. How (...) we are able to become constituents of a broader landscape will gain more relevance as the earth warms and its population reaches the nine billion mark. Our deeply held values about individuality may even become... (shrink)

In rubber hand illusions and full body illusions, touch sensations are projected to non-body objects such as rubber hands, dolls or virtual bodies. The robustness, limits and further perceptual consequences of such illusions are not yet fully explored or understood. A number of experiments are reported that test the limits of a variant of the rubber hand illusion. Methodology/Principal Findings -/- A variant of the rubber hand illusion is explored, in which the real and foreign hands are aligned (...) in personal space. The presence of the illusion is ascertained with participants' scores and temperature changes of the real arm. This generates a basic illusion of touch projected to a foreign arm. Participants are presented with further, unusual visuotactile stimuli subsequent to onset of the basic illusion. Such further visuotactile stimulation is found to generate very unusual experiences of supernatural touch and touch on a non-hand object. The finding of touch on a non-hand object conflicts with prior findings, and to resolve this conflict a further hypothesis is successfully tested: that without prior onset of the basic illusion this unusual experience does not occur. Conclusions/Significance -/- A rubber hand illusion is found that can arise when the real and the foreign arm are aligned in personal space. This illusion persists through periods of no tactile stimulation and is strong enough to allow very unusual experiences of touch felt on a cardboard box and experiences of touch produced at a distance, as if by supernatural causation. These findings suggest that one's visual body image is explained away during experience of the illusion and they may be of further importance to understanding the role of experience in delusion formation. The findings of touch on non-hand objects may help reconcile conflicting results in this area of research. In addition, new evidence is provided that relates to the recently discovered psychologically induced temperature changes that occur during the illusion. (shrink)

Studies of early modern dress frequently focus on its connection with status and identity, overlooking clothing’s primary function, namely to protect the body and promote good health. The daily processes of dressing and undressing carried numerous considerations: for example, were vital areas of the body sufficiently covered, in the correct fabrics and colours, in order to maintain an ideal body temperature? The health benefits of clothing were countered by the many dangers it carried, such as toxic (...) dyes, garments that were either too tight or voluminous, or harboured dirt and diseases that could infect the body. This article draws on medical treatises and health manuals printed and read in Italy and England, as well as personal correspondence and diaries, contextualised with visual evidence of the styles described. It builds on the current, wider interest in preventative medicine, humoral theory, health and the body in the early modern period by focusing in depth on the role of clothing within these debates. (shrink)

As Jaegwon Kim points out in his excellent new book, “reductionism” has become something of a pejorative term in philosophy and related disciplines. But originally (eg, as expressed in Ernest Nagel’s 1961 The Structure of Science) reduction was supposed to be a form of explanation, and one may wonder whether it is reasonable to reject in principle the advances in knowledge which such explanations may offer. Nagel’s own view, illustrated famously by the reduction of thermodynamics to statistical mechanics, was that (...) reduction is a relation between theories: theory A is reduced to theory B by formulating “bridge laws” which link the terminology of the theories, and using them to derive A from B. (An additional reductive claim is that Aphenomena are identical with certain B-phenomena—as when the temperature of a gas is identified with its mean molecular kinetic energy—but this kind of identity claim is, strictly speaking, independent of the claim about theories.) Applied to the case of mental states and brain states, a reduction would provide explanatory relations between psychology and neuroscience, normally supplemented with the claim that mental properties are identical with physical properties in the brain. (shrink)

What is like to live without touch or movement/position sense? The only way to understand the importance of these senses, so familiar we cannot imagine their absence, is to ask someone in that position. Ian Waterman lost them below the neck over forty years ago, though pain and temperature perception and his peripheral movement nerves were unaffected. Without proprioceptive feedback and touch the movement brain was disabled. Completely unable to move, he felt disembodied and frightened. Then, slowly, he taught (...) himself to dress, eat and walk by thinking about each movement and with visual supervision. In Losing Touch, the narrative moves between biography and scientific research, theatre, documentary and zero gravity. The book is the result of nearly 30 years close collaboration between author and subject. (shrink)

The detection of the number of extra–compact dimensions contained in some gravitational models is analyzed resorting to the discontinuity of the specific heat at the critical temperature of a Bose–Einstein condensate. It is shown that the function relating the number of particles and this discontinuity defines a segment of a straight line whose slope depends upon the number of extra–compact dimensions. The experimental feasibility of the proposal is also considered.

Is there a parallel between climate change and our body’s temperature or non-compliance and failure to act on global warming? This paper proposes a model which describes the human body as part of N...

IntroductionThe identity thesis asserts that for every psychological state P there is a neural state N such that P=N. In the hope of rendering IT clear and plausible many identity theorists have compared psycho-neural identity claims to such theoretical identities as temperature is identical with molecular mean kinetic energy. However such a comparison admits a weak and a strong interpretation. According to the weak interpretation, psycho-neural identities are said to be like theoretical identities in the sense that the former (...) are contingent claims just as the latter are presumed to be. Identity theorists have appealed to the contingent status of IT in order to meet prima facie objections of the following sort. We can imagine ourselves undergoing a pain, although we are not undergoing the neural process which the identity theorist claims is identical with the pain. Indeed we can imagine ourselves being in pain and yet not having a brain at all. Hence IT is false. Identity theorists have replied by arguing that this objection merely shows that IT is not a necessary truth, or that psychological and neurological terms do not have the same meaning. (shrink)

After describing the three European strategies focused on social control, this essay will first demonstrate that the first two strategies try less to protect societies than to enforce efficient tools of governance. Additionally, they reinforce stereotypes harming Muslim immigrants. I show that diverse approaches in policing can make a difference in the communities where police forces operate. The third strategy, that of prevention requiring the cooperation of the citizens, may be more sustainable in the long term as it facilitates communication (...) among local politicians and involved actors. Finally, I point out that the interplay of interests, ideas and institutions matter a great deal to the comparison. (shrink)

As part of a research conducted in the field of professional didactics for the design of video-based training for saddlers, we mobilize an iterative and collaborative analysis protocol with professionals. We compare the effects produced during a debate between experts mediated by the researcher, based sometimes on a confrontation with video traces of the activity, sometimes on the temporary diagrams of a conceptual structure of the situation. Using the argumentative trilogue analysis framework, we show how these methodologies are able to (...) foster the expression of a process of conceptualization depending on whether professionals are confronted with lived images or concep-tualizations produced by the researcher. (shrink)

IntroductionThe world pandemic of the virus SARS-CoV-2, which causes COVID-19 infection was announced by the World Health Organization on March 11, 2020. Due to the restrictions that were introduced in order to minimize the spread of the virus, people more often suffer from stress, depression, anxiety, and sleep disorders. The aim of this study was evaluation of the stress levels and sleep disorders among nursing students during the pandemic SARS-CoV-2.Materials and Study MethodsThis is a cross-sectional study conducted among 397 nursing (...) students on March 2020. The research tools used were original questionnaires, Perceived Stress Scale, and the Athenian Insomnia Scale, as well as Coping with Stress Inventory.ResultsRespondents felt a high level of stress, which occurred in 68.8% of interviewees regarding whether there was a danger of contracting COVID-19. Respondents experienced 84% stress levels when a family member suffered from COVID-19. Sleep disorders were determined mainly by the fear of infection and contact with someone who might be infected with the virus. Nursing students who felt a high level of stress often suffered from sleep disorders more frequently than students who felt a low or average stress level. The respondents decided to cope with stress by denial, taking psychoactive substances, ceasing action, or blaming themselves. The greater the intensity of stress experienced by students, the more often they undertook avoidance behaviors or showed helplessness.ConclusionDuring the pandemic, students experienced severe stress, which resulted in sleep disorders and avoidance behaviors. (shrink)

As study of knowledge, epistemology attempts at identifying its necessary and sufficient conditions and defining its sources, structure and limits. From this pointof view, until present, there are no applied approaches to the Romanian archaeology. Consequently, my present paper presents an attempt to explore the structural characteristics of the knowledge creation process through the analysis of the results of a series of interviews conducted on Romanian archaeologists. The interviews followed a qualitative approach built upon a semi-structured frame. Apparent data saturation (...) was reached after four interviews within initial target group (senior researchers with institutional authority). Under these conditions a decision was made to continue the interviews within a secondary control group (young doctoral or post-doc researchers guided by members of the initial target group) in order to both verify the observed data saturation and to assess the impact of the attitude of senior researchers towards scientific research on the younger generation. The preliminary results allow to assert that Romanian archaeology is still caught in a highly conservative and intradisciplinarian manner of knowledge production with a negative effect on both new knowledgeproduction and future specialists’ education. (shrink)

Globalization leads to cross-border business transactions between societies with very different norms and regulations regarding bribery. Bribery in international business transactions can be seen as a function of not only the demand for such bribes in different countries, but the supply, or willingness to provide bribes by multinational firms and their representatives. This study addresses the propensity of firms from 30 different countries to engage in international bribery. The study incorporates both domestic (economic development, culture, and domestic corruption in the (...) supplying country) and international factors (those countries’ patterns of trade and involvement in international accords) in explaining the willingness to bribe abroad. The propensity to provide bribes was the lowest when corruption was not tolerated in the multinational firms’ home countries, when the firms’ countries were signatories of the Organization for Economic Cooperation and Development (OECD) anti-bribery convention, and when those countries traded heavily with wealthier nations. Further, these findings are maintained when controlling for levels of economic development and cultural values in the supplying country. In terms of culture, firms from high power distance countries showed a somewhat greater propensity for providing bribes in transactions with less-developed nations. (shrink)

In 1966, a team made up of Brazilian and foreign scientists spent a week carefully recording the body temperature and other clinical signs and symptoms of 110 Tiriyó Indigenous people in their communities along the Brazil-Suriname border. Led by the Yale University virologist and immunologist Francis Black, the researchers faced an "epidemic" with a special profile, distinct from those most common in Indigenous populations, which usually resulted in widespread illness, the collapse of subsistence activities, hunger, and as a (...) rule, elevated mortality.Rather, what was happening with the Tiriyó was a planned event, controlled and carefully... (shrink)

One of the first envatted brains, the most cyborgian element of J. D. Bernal’s 1929 futuristic manifesto, The world, the flesh and the the devil, proposed a technological solution to the dreary certainty of mortality. In Bernal’s scenario the brain is maintained in an ‘out of body’ but ‘like-body’ environment—in a bath of cerebral–spinal fluid held at constant body temperature. In reality, acquiring prospective immortality requires access to very different technologies—those that allow human organs and tissues (...) to be preserved in a quite ‘inhuman’ life-world—the cryogenic storage chamber. Like Bernal, today’s cryonicists consider that immortality can be secured through preservation of the brain alone. In this article I trace attempts to preserve or suspend life, and especially brain function, through the application of new ‘technologies of immortality’. Drawing together historical information on the development of refrigeration, cryopreservation, transplantation, and nanotechnologies, I explore the uneasy relationship between cryonics and the technology on which it depends for its success—cryogenics. In so doing, I argue that the ability to successfully realize the science fiction fantasy of human immortality will rest on a moral and scientific parasitism: the capacity to use the biotechnological artifacts or proxies—cryogenically preserved brains, archived brains, tissues, and immortalized cell lines—derived from the dead, in order to prolong life. (shrink)

Gentle handling of mammals , and lizards , but not of frogs and fish elevated the set-point for body temperature, i.e., produced an emotional fever, achieved only behaviourally in lizards. Heart rate, another detector of emotion in mammals, was also accelerated by gentle handling, from ca. 70 b/min to ca. 110 b/min in lizards. This tachycardia faded in about 10 min. The same handling did not significantly modify the frogs’ heart rates. The absence of emotional tachycardia in frogs (...) and its presence in lizards , together with the emotional fever exhibited by mammals and reptiles, but not by frogs or fish, would suggest that emotion emerged in the evolutionary lineage between amphibians and reptiles. Such a conclusion would imply that reptiles possess consciousness with its characteristic hedonic dimension, pleasure. The role of sensory pleasure in decision making was therefore verified in iguanas placed in a motivational conflict. To be able to reach a bait , the iguanas had to leave a warm refuge, provided with standard food, and had to venture into a cold environment. The results showed that lettuce was not necessary to the iguanas and that they traded off the palatability of the bait against the disadvantage of the cold. Thus, the behaviour of the iguanas was possibly produced, as it is in humans, through the maximization of sensory pleasure. Altogether, these results may indicate that the first elements of mental experience emerged between amphibians and reptiles. (shrink)