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https://www.readbyqxmd.com/read/28095721/a-lateral-dynamics-of-a-wheelchair-identification-and-analysis-of-tire-parameters
#1
L C A Silva, F C Corrêa, J J Eckert, F M Santiciolli, F G Dedini
In vehicle dynamics studies, the tire behaviour plays an important role in planar motion of the vehicle. Therefore, a correct representation of tire is a necessity. This paper describes a mathematical model for wheelchair tire based on the Magic Formula model. This model is widely used to represent forces and moments between the tire and the ground; however some experimental parameters must be determined. The purpose of this work is to identify the tire parameters for the wheelchair tire model, implementing them in a dynamic model of the wheelchair...
February 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28095136/homonationalism-before-homonationalism-representations-of-russia-eastern-europe-and-the-soviet-union-in-the-u-s-homophile-press-1953-1964
#2
Dasha Serykh
This essay focuses on representations of Russia, the Soviet Union, and Eastern Europe in U.S. homophile periodicals from 1953 to 1964. Extending the application of Jasbir Puar's concept of homonationalism to the Cold War period, the essay examines 126 articles and other items that were published in ONE, Mattachine Review, and The Ladder and demonstrates that these periodicals often engaged in homonationalist discourses when constructing the Russian, Soviet, and Eastern European "other." Negative constructions of these regions were sometimes used to affirm the political alignment of the homophile authors with the American nation...
January 17, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28093761/soul-in-the-world-symbolic-culture-as-the-medium-for-psyche
#3
Warren Colman
Whilst the loss of a sense of living connection with the material world is mainly associated with the scientific revolution in seventeenth century Europe, it can be traced back to Plato's introduction of a hierarchy between soul and body. Jung's attempted solution to this - esse in anima - is ingenious but maintains the Cartesian split by which the aliveness of the world is reduced to a projection of psychic forces (the archetypes). An alternative approach is proposed, rooted in the Aristotelean emphasis on practical activity that sees the soul as a function of our way of being in the world...
February 2017: Journal of Analytical Psychology
https://www.readbyqxmd.com/read/28080962/-bodily-precision-a-predictive-coding-account-of-individual-differences-in-interoceptive-accuracy
#4
REVIEW
Vivien Ainley, Matthew A J Apps, Aikaterini Fotopoulou, Manos Tsakiris
Individuals differ in their awareness of afferent information from within their bodies, which is typically assessed by a heartbeat perception measure of 'interoceptive accuracy' (IAcc). Neural and behavioural correlates of this trait have been investigated, but a theoretical explanation has yet to be presented. Building on recent models that describe interoception within the free energy/predictive coding framework, this paper applies similar principles to IAcc, proposing that individual differences in IAcc depend on 'precision' in interoceptive systems, i...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28080961/interoception-beyond-homeostasis-affect-cognition-and-mental-health
#5
Manos Tsakiris, Hugo Critchley
Interoception refers to the sensing of the internal state of one's body. Interoception is distinct from the processing of sensory information concerning external (non-self) stimuli (e.g. vision, hearing, touch and smell) and is the afferent axis to internal (autonomic and hormonal) physiological control. However, the impact of interoception extends beyond homeostatic/allostatic reflexes: it is proposed to be fundamental to motivation, emotion (affective feelings and behaviours), social cognition and self-awareness...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28080111/generalized-movement-representation-in-haptic-perception
#6
Lucile Dupin, Vincent Hayward, Mark Wexler
The extraction of spatial information by touch often involves exploratory movements, with tactile and kinesthetic signals combined to construct a spatial haptic percept. However, the body has many tactile sensory surfaces that can move independently, giving rise to the source binding problem: when there are multiple tactile signals originating from sensory surfaces with multiple movements, are the tactile and kinesthetic signals bound to one another? We studied haptic signal combination by applying the tactile signal to a stationary fingertip while another body part (the other hand or a foot) or a visual target moves, and using a task that can only be done if the tactile and kinesthetic signals are combined...
January 12, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28078604/authenticity-in-anatomy-art
#7
Jessica Adkins
The aim of this paper is to observe the evolution and evaluate the 'realness' and authenticity in Anatomy Art, an art form I define as one which incorporates accurate anatomical representations of the human body with artistic expression. I examine the art of 17th century wax anatomical models, the preservations of Frederik Ruysch, and Gunther von Hagens' Body Worlds plastinates, giving consideration to authenticity of both body and art. I give extra consideration to the works of Body Worlds since the exhibit creator believes he has created anatomical specimens with more educational value and bodily authenticity than ever before...
January 12, 2017: Journal of Medical Humanities
https://www.readbyqxmd.com/read/28073044/influence-of-the-body-schema-on-mirror-touch-synesthesia
#8
Jared Medina, Carrie DePasquale
Individuals with mirror-touch synesthesia (MTS) report feeling touch on their own body when seeing someone else being touched. We examined how the body schema - an on-line representation of body position in space - is involved in mapping touch from a viewed body to one's own body. We showed 45 mirror-touch synesthetes videos of a hand being touched, varying the location of the viewed touch by hand (left, right), skin surface (palmar, dorsal) and finger (index, ring). Participant hand posture was either congruent or incongruent with the posture of the viewed hand...
December 24, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28071712/independent-aftereffects-of-fat-and-muscle-implications-for-neural-encoding-body-space-representation-and-body-image-disturbance
#9
Daniel Sturman, Ian D Stephen, Jonathan Mond, Richard J Stevenson, Kevin R Brooks
Although research addressing body size misperception has focused on socio-cognitive processes, such as internalization of the "ideal" images of bodies in the media, the perceptual basis of this phenomenon remains largely unknown. Further, most studies focus on body size per se even though this depends on both fat and muscle mass - variables that have very different relationships with health. We tested visual adaptation as a mechanism for inducing body fat and muscle mass misperception, and assessed whether these two dimensions of body space are processed independently...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28064539/treating-the-binge-or-the-fat-body-representations-of-fatness-in-a-gold-standard-psychological-treatment-manual-for-binge-eating-disorder
#10
Amy Brown-Bowers, Ashley Ward, Nicole Cormier
This article reports the results of a Foucauldian-informed discourse analysis exploring representations of fatness embedded within an empirically based psychological treatment manual for binge eating disorder, a condition characterized by overvaluation of weight and shape. Analyses indicate that the manual prioritizes weight loss with relatively less emphasis placed on treating the diagnostic symptoms and underlying mechanisms of binge eating disorder. We raise critical concerns about these observations and link our findings to mainstream psychology's adoption of the medical framing of fatness as obesity within the "gold standard" approach to intervention...
January 2017: Health (London)
https://www.readbyqxmd.com/read/28062308/spinal-reorganization-after-bone-fracture-in-mice
#11
Silke Hirsch, Alaa Ibrahim, Laura Krämer, Fabiola Escolano-Lozano, Tanja Schlereth, Frank Birklein
: Bone fracture with subsequent immobilization of the injured limb can cause Complex Regional Pain Syndrome (CRPS) in humans. Mechanisms of CRPS are still not completely understood but bone fracture with casting in mice leads to a similar posttraumatic inflammation as seen in humans and might therefore be an analogue to human CRPS. Here we report behavioral and spinal electrophysiological changes in mice that developed swelling of the paw, warming of the skin and pain in the injured limb after bone fracture...
January 3, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28057348/lower-extremity-control-during-turns-initiated-with-and-without-hip-external-rotation
#12
Antonia M Zaferiou, Henryk Flashner, Rand R Wilcox, Jill L McNitt-Gray
The pirouette turn is often initiated in neutral and externally rotated hip positions by dancers. This provides an opportunity to investigate how dancers satisfy the same mechanical objectives at the whole-body level when using different leg kinematics. The purpose of this study was to compare lower extremity control strategies during the turn initiation phase of pirouettes performed with and without hip external rotation. Skilled dancers (n=5) performed pirouette turns with and without hip external rotation...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28054740/common-and-specific-neural-correlates-underlying-the-spatial-congruency-effect-induced-by-the-egocentric-and-allocentric-reference-frame
#13
Nan Liu, Hui Li, Wen Su, Qi Chen
The spatial location of an object can be represented in two frames of reference: egocentric (relative to the observer's body or body parts) and allocentric (relative to another object independent of the observer). The object positions relative to the two frames can be either congruent (e.g., both left or both right) or incongruent (e.g., one left and one right). Most of the previous studies, however, did not discriminate between the two types of spatial conflicts. To investigate the common and specific neural mechanisms underlying the spatial congruency effect induced by the two reference frames, we adopted a 3 (type of task: allocentric, egocentric, and color) × 2 (spatial congruency: congruent vs...
January 5, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28053026/self-grounded-vision-hand-ownership-modulates-visual-location-through-cortical-%C3%AE-and-%C3%AE-oscillations
#14
Nathan Faivre, Jonathan Dönz, Michele Scandola, Herberto Dhanis, Javier Bello Ruiz, Fosco Bernasconi, Roy Salomon, Olaf Blanke
: Vision is known to be shaped by context, defined by environmental and bodily signals. In the Taylor illusion, the size of an afterimage projected on one's hand changes according to proprioceptive signals conveying hand position. Here, we assessed whether the Taylor illusion does not just depend on the physical hand position, but also on bodily self-consciousness as quantified through illusory hand ownership. Relying on the somatic rubber hand illusion, we manipulated hand ownership, such that participants embodied a rubber hand placed next to their own hand...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28052436/quantification-of-1-h-mrs-signals-based-on-sparse-metabolite-profiles-in-the-time-frequency-domain
#15
Mohammad Ali Parto Dezfouli, Mohsen Parto Dezfouli, Alireza Ahmadian, Alejandro F Frangi, Melika Esmaeili Rad, Hamidreza Saligheh Rad
MRS is an analytical approach used for both quantitative and qualitative analysis of human body metabolites. The accurate and robust quantification capability of proton MRS ((1) H-MRS) enables the accurate estimation of living tissue metabolite concentrations. However, such methods can be efficiently employed for quantification of metabolite concentrations only if the overlapping nature of metabolites, existing static field inhomogeneity and low signal-to-noise ratio (SNR) are taken into consideration. Representation of (1) H-MRS signals in the time-frequency domain enables us to handle the baseline and noise better...
January 4, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28048596/su-f-t-248-fmea-risk-analysis-implementation-aapm-tg-100-in-total-skin-electron-irradiation-technique
#16
B Ibanez-Rosello, J Bautista-Ballesteros, J Bonaque, J Perez-Calatayud, A Gonzalez-Sanchis, J Lopez-Torrecilla, L Brualla-Gonzalez, T Garcia-Hernandez, A Vicedo-Gonzalez, D Granero, A Serrano, B Borderia, C Solera, J Rosello
PURPOSE: Total Skin Electron Irradiation (TSEI) is a radiotherapy treatment which involves irradiating the entire body surface as homogeneously as possible. It is composed of an extensive multi-step technique in which quality management requires high consumption of resources and a fluid communication between the involved staff, necessary to improve the safety of treatment. The TG-100 proposes a new perspective of quality management in radiotherapy, presenting a systematic method of risk analysis throughout the global flow of the stages through the patient...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047657/su-f-j-140-using-handheld-stereo-depth-cameras-to-extend-medical-imaging-for-radiation-therapy-planning
#17
C Jenkins, L Xing, S Yu
PURPOSE: A correct body contour is essential for the accuracy of dose calculation in radiation therapy. While modern medical imaging technologies provide highly accurate representations of body contours, there are times when a patient's anatomy cannot be fully captured or there is a lack of easy access to CT/MRI scanning. Recently, handheld cameras have emerged that are capable of performing three dimensional (3D) scans of patient surface anatomy. By combining 3D camera and medical imaging data, the patient's surface contour can be fully captured...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28041532/laterality-and-body-ownership-effect-of-handedness-on-experience-of-the-rubber-hand-illusion
#18
M Smit, D I Kooistra, I J M van der Ham, H C Dijkerman
Body ownership has mainly been linked to the right hemisphere and larger interhemispheric connectivity has been shown to be associated with greater right hemispheric activation. Mixed-handed participants tend to have more interhemispheric connectivity compared to extreme handed participants. The aim of this study was to examine whether feelings of ownership as assessed with the rubber hand illusion (RHI) are differentiated by handedness and differed between the left and right hand. Sinistrals-, dextrals-, and mixed-handed individuals (n = 63) were subjected to the RHI...
January 2, 2017: Laterality
https://www.readbyqxmd.com/read/28035656/the-internal-representation-of-head-orientation-differs-for-conscious-perception-and-balance-control
#19
Brian H Dalton, Brandon G Rasman, J Timothy Inglis, Jean-Sébastien Blouin
We tested perceived head-on-feet orientation and the direction of vestibular-evoked balance responses in passively- and actively-held head-turned postures The direction of vestibular-evoked balance responses was not aligned with perceived head-on-feet orientation while maintaining prolonged passively-held head-turned postures. Furthermore, static visual cues of head-on-feet orientation did not update the estimate of head posture for the balance controller A prolonged actively-held head-turned posture did not elicit a rotation in the direction of the vestibular-evoked balance response despite a significant rotation in perceived angular head posture It is proposed that conscious perception of head posture and the transformation of vestibular signals for standing balance relying on this head posture are not dependent on the same internal representation...
December 30, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/28027427/the-adiposity-of-children-is-associated-with-their-lifestyle-behaviours-a-cluster-analysis-of-school-aged-children-from-12-nations
#20
Dorothea Dumuid, T Olds, L K Lewis, J A Martin-Fernández, T Barreira, S Broyles, J-P Chaput, M Fogelholm, G Hu, R Kuriyan, A Kurpad, E V Lambert, J Maia, V Matsudo, V O Onywera, O L Sarmiento, M Standage, M S Tremblay, C Tudor-Locke, P Zhao, P Katzmarzyk, F Gillison, C Maher
BACKGROUND: The relationship between children's adiposity and lifestyle behaviour patterns is an area of growing interest. OBJECTIVES: The objectives of this study are to identify clusters of children based on lifestyle behaviours and compare children's adiposity among clusters. METHODS: Cross-sectional data from the International Study of Childhood Obesity, Lifestyle and the Environment were used. PARTICIPANTS: the participants were children (9-11 years) from 12 nations (n = 5710)...
December 27, 2016: Pediatric Obesity
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