We present a mini review of the Stueckelberg mechanism, which was proposed to make the abelian gauge theories massive as an alternative to Higgs mechanism, within the framework of Minkowski as well as curved spacetimes. The higher the scale the tighter the bounds on the photon mass, which might be gained via the Stueckelberg mechanism, may be signalling that even an extremely small mass of the photon which cannot be measured directly could have far reaching effects in cosmology. We present (...) a cosmological model where Stueckelberg fields, which consist of both scalar and vector fields, are non-minimally coupled to gravity and the universe could go through a decelerating expansion phase sandwiched by two different accelerated expansion phases. We discuss also the possible anisotropic extensions of the model. (shrink)

In the classical Turing test, participants are challenged to tell whether they are interacting with another human being or with a machine. The way the interaction takes place is not direct, but a distant conversation through computer screen messages. Basic forms of interaction are face-to-face and embodied, context-dependent and based on the detection of reciprocal sensorimotor contingencies. Our idea is that interaction detection requires the integration of proprioceptive and interoceptive patterns with sensorimotor patterns, within quite short time lapses, so that (...) they appear as mutually contingent, as reciprocal. In other words, the experience of interaction takes place when sensorimotor patterns are contingent upon one’s own movements, and vice versa. I react to your movement, you react to mine. When I notice both components, I come to experience an interaction. Therefore, we designed a “minimal” Turing test to investigate how much information is required to detect these reciprocal sensorimotor contingencies. Using a new version of the perceptual crossing paradigm, we tested whether participants resorted to interaction detection to tell apart human from machine agents in repeated encounters with these agents. In two studies, we presented participants with movements of a human agent, either online or offline, and movements of a computerized oscillatory agent in three different blocks. In each block, either auditory or audiovisual feedback was provided along each trial. Analysis of participants’ explicit responses and of the implicit information subsumed in the dynamics of their series will reveal evidence that participants use the reciprocal sensorimotor contingencies within short time windows. For a machine to pass this minimal Turing test, it should be able to generate this sort of reciprocal contingencies. (shrink)

Autonomous vehicles (AV) offer promising benefits to society in terms of safety, environmental impact and increased mobility. However, acute challenges persist with any novel technology, inlcuding the perceived risks and trust underlying public acceptance. While research examining the current state of AV public perceptions and future challenges related to both societal and individual barriers to trust and risk perceptions is emerging, it is highly fragmented across disciplines. To address this research gap, by using the Web of Science database, our study (...) undertakes a bibliometric and performance analysis to identify the conceptual and intellectual structures of trust and risk narratives within the AV research field by investigating engineering, social sciences, marketing, and business and infrastructure domains to offer an interdisciplinary approach. Our analysis provides an overview of the key research area across the search categories of ‘trust’ and ‘risk’. Our results show three main clusters with regard to trust and risk, namely, behavioural aspects of AV interaction; uptake and acceptance; and modelling human–automation interaction. The synthesis of the literature allows a better understanding of the public perception of AV and its historical conception and development. It further offers a robust model of public perception in AV, outlining the key themes found in the literature and, in turn, offers critical directions for future research. (shrink)

The objective of the study was to translate and validate the COVID Stress Scales into Spanish in Peru. Around 1,424 people, selected through a non-probabilistic sampling, participated in the study. Factor analysis confirmed an initial six-dimensional factorial structure of the CSS-36. Reliability by internal consistency was good for the dimensions of fear of danger, socioeconomic consequences, xenophobia, fear of contamination, traumatic stress, and compulsive control. In addition, the factorial structure of scale has been shown be strictly invariant for both males (...) and females. The Spanish version of the CSS-36 has evidence of validity, reliability, and invariance to measure COVID-19 stress in a Peruvian sample. (shrink)

Tras la pandemia de la COVID-19 se empezó a potenciar el proceso de virtualización de contenidos de aprendizaje, que ha dado lugar al desarrollo de materiales audiovisuales de apoyo a la docencia. Estos materiales son a menudo vídeos de duración variable diseñados para complementar las estrategias tradicionales de formación y facilitar la adquisición de algunos contenidos de la materia curricular. El presente trabajo presenta una experiencia colaborativa entre docentes para la introducción de materiales audiovisuales como recursos para la educación universitaria (...) de asignaturas de matemáticas básicas en cinco Grados de distintas ingenierías de la Universidad de Cantabria. (shrink)

Discussions on the right to privacy usually involve persons in the Lockean sense. However, psychological properties that make up the person can be lost due to neurodegenerative diseases, cerebral tumors or trauma. Depending on the severity of the disease or the trauma the patient may end up in PVS or a coma. In this article the privacy rights of these patients will be discussed. In light of two examples − the publication of photographs showing Bülent Ecevit and Barış Akarsu (...) in a coma − it will be argued that the privacy rights secured by the Turkish Constitution are being violated by the Turkish Press. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Pairing breaths:Rabah Ameur-Zaïmech's Terminal Sud (2019)Marion Froger (bio)Translated by David F. BellAsphyxiaNever had I felt such a sense of suffocation watching a film by Rabah Ameur-Zaïmeche.1 The poisoned atmosphere of Terminal Sud (2019) recalls the atmosphere of the Algerian War (1955-1962) and that of the decade of darkness (1991-2002) in that country. The filmmaker chose not to make a historical film, however, but rather a dystopia that fuses together (...) periods and places. The story appears to be contemporary, in a country bathed in the colors of southern France, apparently in the grip of all the violence that French and Algerian memories are nowhere near forgetting.2 Bandits wearing combat uniforms, policemen wearing outfits sporting an acronym that strangely resembles one used by Islamist Algerian groups,3 and generals evoking the French putschists of 1961 all fight against each other—ransoming, threatening, kidnapping, killing, and torturing the local population. Meanwhile, out in the countryside, guerrillas (maquisards4) try to care for their dying leader, like North African freedom fighters (fellagas) were doing before them, and this in turn evokes French Resistance fighters in the 1940s. The film's work on confused memories, which, according to Thierry Kuntzel, is related to the condensation, overdetermination, and displacement of dreamwork, transforms being out of breath into a symptom that hounds the doctor, played by Ramzy Bédia ("Inhale…Exhale…Inhale again…Hold your breath…Exhale"), a state of the world in the form of a trap that threatens to suffocate him—and launches the quest for a filmic poetics of calm through the pairing of breaths.Peeling façades with tightly closed doors, lowered metal shop shutters, narrow and tense streets: the doctor, his wife Hazia, and their family slip outside in fear of kidnapping and gunfire, climb up stairs breathing heavily, anxiously await by the window, their bodies obscured in starkly contrasting shadows cast by glaring light, hug each other with endless sighs. As they share their grief, they have barely enough breath left to sing to the memory of someone who has disappeared,5 as if after an argument, [End Page 244] when everything has been said and all that remains is a strangled sob serving as last farewell.The film opens with an attack on a minivan used for public transportation: bandits, who could be soldiers, steal everything from the passengers and driver. The doctor sees his patients in a rundown hospital, treats a woman whose breathing is raucous, her voice taut with anxiety, and who speaks about the disappearance of her husband. Back home, he finds anonymous letters containing death threats and, to calm down, he searches for his breath by taking a deep drag from a cigarette and a swig of whiskey. "I can't take it any longer, I can't even stand up, I can't do anything, I'm at the end of my rope, I'm tired […] Is that what our country has become?" he confides to a friend several hours before losing, in the emergency room, his wife's brother, a journalist assassinated in front of his house. "Stay with me," he says as he runs beside the stretcher calling for help, "Breathe, breathe."The spasmodic breathing of Ramzy Bédia, provoked by the fear, effort, and pain that define his character, intensifies as the film progresses. He barely breathes in the car taking him to treat the rebel leader; he is running out of breath beside the leader's bed as we hear the death rattle and as Bédia shouts to the leader's comrades, "Give him some air, everyone get out!" Later, one of the policemen standing guard at the entrance to the hospital will be mortally wounded by a kamikaze attack and will die on the operating table despite the doctor's exhausting reparatory manipulations. Asphyxia will ultimately directly threaten the doctor after his arrest. Tied to an old bedspring, he will be tortured by electroshock,6 will attempt one last time to justify himself to a soldier who wants to know everything about the rebel leader the doctor has treated, and will nearly suffocate in his... (shrink)