Search Results (13)

In this study, using scanning electron microscope (SEM) and optical microscopy, we give a detailed description of the Acanthoponera mucronata male, supplementing the former male-based genus diagnoses. In particular, we described for the first time the following characters: the morphology of the external genitalia, the peculiar antennal cleaning and the absence of the metapleural gland orifice. In addition, we show the pretarsal claws and the ventral excavation in the gaster that represent diagnostic male features of all Acanthoponera species, never imaged before. The use of modern taxonomic standards is particularly important in order to make these data available to future comparative analyses. Full article

Drumming and chanting are core practices in modern magical-religious Witchcraft in the absence of unifying texts or standardized rituals. Song and musicality contribute towards self-creation and community making. However, Nature Religions and alternate spiritualities are seldom included in surveys of religious musicking or soundscapes. This article considers musicality in earlier publications on modern Witchcraft, as well as the author’s fieldwork with magical-religious Witches in the UK, to show the valuable contribution they make to discussions on religious belonging and the sensorium through song, music, percussion, and soundscapes. Full article

Using optical and scanning electron microscopy, we describe the following new morphologically distinctive characters of the rare Neotropical ant Anillidris bruchi Santschi, 1936, male and queen: scattered setae inter-ommatidia, semicircular hypostomal notch, antennal cleaning, metatibial spurs, and the remnant of the M2 vein in the hindwings. In males, we show for the first time the morphology of maxillary and labial palpi, the absence of metapleural glands, and, in external genitalia, for the first time in ants, a new mechano-sensory area on the volsella that we called “volsella sensorium”, composed of several spine-like sensilla. Additionally, we give an updated morphological diagnosis of the alate caste, which will be useful for future studies to clarify the phylogeny of the genus Anillidris. Full article

One of the most compelling effects of digitally enhanced and digitally enabled immersive exhibitions is their paradoxical dematerialization of “analog” experience. What leads exhibition visitors to accept that immersion is a state achieved only through technological mediation? Are we not already perceptually immersed in the world, as the phenomenologists asserted? This essay explores how digital enhancement disengages self-awareness by masquerading as immersion. In contrast, contemporary artists Karin Sander, Janet Cardiff, and Chris Salter employ desynchronizing and dislocating tactics to challenge naïve notions of what comprises an aesthetic experience, in order to requaint viewers with their own perceptual and ethical agency. Full article

Background: Methemoglobinemia (MetHb) is a rare and potentially severe dyshemoglobinemia that can be induced by exposure to oxidizing agents, decreasing the functional capacity of the hemoglobin molecule to transport and release oxygen into the tissues. MetHb can originate from gases with oxidizing capacity generated by internal combustion engines, although since the universalization of catalyst converters in automobiles, a tiny proportion of MetHb poisoning is due to exposure to engine gases and fumes. Within this group, only two cases due to suicidal motivations have been reported in the last 30 years. Case presentation: Here, we expose the case of a patient with MetHb levels of 25.2% (normal 0–1.5%) who with suicidal motivations had attached and locked a hose to the exhaust pipe of her vehicle with electrical tape, becoming exposed to a sustained concentration of the vehicle’s exhaust. Upon her arrival at the emergency department, the presence of generalized greyish cyanosis with alterations of the sensorium, dissociation between saturation measured by arterial blood gas analysis and pulse oximetry (98% vs. 85%), no response to high-flow oxygen therapy, and an excellent response to intravenous methylene blue treatment were highlighted. Conclusions: This report illustrates an original case of acute toxic acquired MetHb due to inhalation of oxidizing substances originating from the bad ignition of an internal combustion engine. When evaluating a patient with suspected gas intoxication, we usually consider poisoning by the most common toxins, such as carbon monoxide or cyanide. In this context, we propose an algorithm to assist in the suspicion of this entity in patients with cyanosis in the emergency department. MetHb poisoning should be suspected, and urgent co-oximetry should be requested when there is no congruence between cyanosis intensity and oxygen saturation measured by pulse oximetry, if there is discordance between the results of oxygen saturation measured by arterial blood gas and pulse oximeter, and if there is no response to oxygen treatment. This algorithm could be useful to not delay diagnosis, improve prognosis, and limit potential sequelae. Full article

Hyperammonemia is a condition that may result after solid organ transplantation, particularly lung transplantation. However, it is very uncommon for this presentation to occur more than 30 days post-transplantation. Hyperammonemia and the resulting encephalopathy typically manifest with altered sensorium, a clinical situation which is not often included in the differential diagnosis of presumed nonconvulsive status epilepticus (NCSE). Seizures are common among this subset of patients with hyperammonemia and may be refractory to traditional treatments. Evidence of elevated intracranial pressure by invasive monitoring and neuroimaging findings of diffuse cerebral edema are commonly reported. Here we examine the therapeutic importance of identifying the specific cause of hyperammonemic encephalopathy, a condition which may result in status epilepticus and ultimately cerebral edema or even brain death. Full article

The Specialty Coffee Association (SCA) sensory analysis protocol is the methodology that is used to classify specialty coffees. However, because the sensory analysis is sensitive to the taster’s training, cognitive psychology, and physiology, among other parameters, the feasibility of instrumental approaches has been recently studied for complementing such analyses. Spectroscopic methods, mainly near infrared (NIR) and mid infrared (FTIR—Fourier Transform Infrared), have been extensively employed for food quality authentication. In view of the aforementioned, we compared NIR and FTIR to distinguish different qualities and sensory characteristics of specialty coffee samples in the present study. Twenty-eight green coffee beans samples were roasted (in duplicate), with roasting conditions following the SCA protocol for sensory analysis. FTIR and NIR were used to analyze the ground and roasted coffee samples, and the data then submitted to statistical analysis to build up PLS models in order to confirm the quality classifications. The PLS models provided good predictability and classification of the samples. The models were able to accurately predict the scores of specialty coffees. In addition, the NIR spectra provided relevant information on chemical bonds that define specialty coffee in association with sensory aspects, such as the cleanliness of the beverage. Full article

This article aims is to explore a perspective of the ontology of becoming, that makes it possible to study the emergence of phenomena and thereby broaden the understanding of how knowledge is created. It is written in close connection with research in posthumanism and new materialism. What hat has been lacking in these perspectives has been a clearer connection to ontological points of departure. It is therefore the purpose of this article to describe, based on ontological positions, both philosophical points of departure and methodology and research practice. The article is structured in three parts, where the introductory part describes basic ontological starting points. The second part describes how a research apparatus can be constructed and used to carry out analyses based on the ontology of becoming. A research apparatus where the body’s senses and mobility are given a prominent role through a haptic sensorium. The third part describes examples of phenomena that can be explored with an onto-analysis of becoming. Among these, special focus is placed on the border phenomenon of sound. The result of the article is a perspective that can contribute to renewed insights into how phenomena are created with the world. Full article

Organisms are adapted to each other and the environment because there is an inbuilt striving toward security, stability, and equilibrium. A General Theory of Behavior connects imagery, affect, and action with the central executive system we call consciousness, a direct emergent property of cerebral activity. The General Theory is founded on the assumption that the primary motivation of all of consciousness and intentional behavior is psychological homeostasis. Psychological homeostasis is as important to the organization of mind and behavior as physiological homeostasis is to the organization of bodily systems. Consciousness processes quasi-perceptual images independently of the input to the retina and sensorium. Consciousness is the “I am” control center for integration and regulation of (my) thoughts, (my) feelings, and (my) actions with (my) conscious mental imagery as foundation stones. The fundamental, universal conscious desire for psychological homeostasis benefits from the degree of vividness of inner imagery. Imagery vividness, a combination of clarity and liveliness, is beneficial to imagining, remembering, thinking, predicting, planning, and acting. Assessment of vividness using introspective report is validated by objective means such as functional magnetic resonance imaging (fMRI). A significant body of work shows that vividness of visual imagery is determined by the similarity of neural responses in imagery to those occurring in perception of actual objects and performance of activities. I am conscious; therefore, I am. Full article

Given that consciousness is an essential ingredient for achieving Singularity, the notion that an Artificial General Intelligence device can exceed the intelligence of a human, namely, the question of whether a computer can achieve consciousness, is explored. Given that consciousness is being aware of one’s perceptions and/or of one’s thoughts, it is claimed that computers cannot experience consciousness. Given that it has no sensorium, it cannot have perceptions. In terms of being aware of its thoughts it is argued that being aware of one’s thoughts is basically listening to one’s own internal speech. A computer has no emotions, and hence, no desire to communicate, and without the ability, and/or desire to communicate, it has no internal voice to listen to and hence cannot be aware of its thoughts. In fact, it has no thoughts, because it has no sense of self and thinking is about preserving one’s self. Emotions have a positive effect on the reasoning powers of humans, and therefore, the computer’s lack of emotions is another reason for why computers could never achieve the level of intelligence that a human can, at least, at the current level of the development of computer technology. Full article

In the Democratic Republic of Congo, the incidence of sickle cell anemia (SCA) is estimated to affect 30,000 to 40,000 neonates per year. However, there is paucity of data on acute clinical manifestations in sickle cell children. In these circumstances, it is difficult to develop a health care policy for an adequate management of sickle cell patients. This was a seven years’ retrospective study of children admitted with acute sickle cell crisis in the Department of Pediatrics in University Hospital of Kinshasa, Kinshasa, the Democratic Republic of Congo. A total of 108 patients were identified as having SCA. There were 56 (51%) girls and 52 (49%) boys. Median age was 10.5 years (range 1–24 years). No child was diagnosed by neonatal screening. The median age of diagnosis of sickle cell anemia was 90 months (range: 8–250 months). The median age at the first transfusion was 36 months (range 4–168). In this series, 61 (56.5%) patients were eligible for hydroxyurea. However, this treatment was only performed in 4 (6.6%) of them. Pain episodes, acute anemic crisis and severe infection represent respectively 38.2%, 34.3% and 21.9% of events. Altered sensorium and focal deficit were encountered occasionally and represented 3.4% of acute events. Acute renal manifestations, cholelithiasis and priapism were rarely reported, in this cohort. In Kinshasa, the care of patients suffering from sickle cell anemia is characterized by the delayed diagnosis and low detection of organ complications compared to reports of Western countries. This situation is due to resources deficiencies. Full article

The article develops Marshall McLuhan’s approach to the interplay between media, the sensorium, and reality. McLuhan’s concepts of “acoustic space” and “visual space” are unfolded with regard to the consequences that digital media will have on the human ability to perceive reality. Reality–sensorium interaction is systematized in the article. This systematization includes the environments of the given, the represented, and the induced. These environments are shaped by sequential stages of media evolution, which relate to preliterate media, alphabet-based media, and digital media. Existing and upcoming media technologies are presumed to alter human biology and transcend it. Within the set of media technologies that alter human biology, artificial flavours, electrically induced senses, immersive media, augmented reality, and virtual reality are treated. Within the set of media impacts that will change the human sensorium, the dismissal of gravity (related to the McLuhanian “angelism” of electronic discarnate man), the switch in navigation from biological networking to social networking, the sense of others, and the thirst for response are treated. Plato, Lenin, Wittgenstein, Benveniste, Logan, Carr, Shirky, and other thinkers are employed in the article to support these McLuhanian speculations, and sketch out prospective trends in the evolution of media and the sensorium. Full article

Compartment syndrome is an orthopedic emergency that require early recognition and urgent intervention to avoid catastrophic complications. High index of suspicion is required for early diagnosis based on a constellation of signs and symptoms that include pain out of proportion and worsened by passive stretching, altered sensorium and palpable tenseness. Any event thus, that masks pain, may lead to delay the diagnosis of compartment syndrome. We report here a case of polytrauma where post-operative analgesia was administered using epidural catheter, which obscured pain and lead to delay in recognition of compartment syndrome. Authors wish to share a lesson, learned at the expense of tragedy. Full article