Allocentric and Egocentric Controllers: Similarities and Differences

Leonardo ◽  
2021 ◽  
pp. 1-8
Author(s):  
Lilac Atassi

Abstract Gestural instruments can be divided into two categories based on the type of the reference frame used by the controller. An egocentric controller uses a reference frame that is centered on and follows a point of the performer's body to measure the body point positions relative to some other body points. An allocentric controller uses a stationary reference frame attached to an object other than the performer's body. The allocentric option is the more commonly used by gestural instrument designers. The egocentric option has been used and explored less frequently. This paper studies, at a low level and high level: 1- The similarities and differences between egocentric and allocentric controllers for gestural instruments from the perspective of performer and instrument designer. 2- The affordances and constraints of egocentric and allocentric controllers as they, to a large degree, define the characteristics of an instrument. The paper presents the initial results of a subjective experiment to encourage the future discussion and study of the subject.

2021 ◽  
Vol 18 (1) ◽  
pp. 136
Author(s):  
V. Tanriverdi

Euler derived equations for rigid body rotations in the body reference frame and in the stationary reference frame by considering an infinitesimal part of the rigid body.Another derivation is possible, and it is widely used: transforming torque-angular momentum relation to the body reference frame.However, their equivalence is not shown explicitly.In this work, for a rigid body with different moments of inertia, we calculated Euler equations explicitly in the body reference frame and in the stationary reference frame and torque-angular momentum relation.We also calculated equations of motion from Lagrangian.These calculations show that all four of them are equivalent.


NanoEthics ◽  
2020 ◽  
Vol 14 (3) ◽  
pp. 227-239
Author(s):  
Johannes Kögel ◽  
Gregor Wolbring

AbstractBrain-computer interfaces (BCIs) are envisioned to enable new abilities of action. This potential can be fruitful in particular when it comes to restoring lost motion or communication abilities or to implementing new possibilities of action. However, BCIs do not come without presuppositions. Applying the concept of ability expectations to BCIs, a wide range of requirements on the side of the users becomes apparent. We examined these ability expectations by taking the example of therapeutic BCI users who got enrolled into BCI research studies due to particular physical conditions. Some of the expectations identified are quite explicit, like particular physical conditions and BCI “literacy”. Other expectations are more implicit, such as motivation, a high level of concentration, pain tolerance, emotion control and resources. These expectations may produce a conception of the human and a self-understanding among BCI users that objectify the body in favour of a brain-centred, cerebral notion of the subject which also plays its part in upholding a normality regime.


2018 ◽  
Vol 24 (2) ◽  
pp. 340-358
Author(s):  
Tamara Sharavara ◽  
Anatolii Kotsur ◽  
Nataliia Syzonenko ◽  
Yanina Tahiltseva

The article deals with the analysis of the association area structure of the notion of competence based on the results of the free association experiment. It was found out that respondents verbalize both key components of the lexicographical and terminological meaning of the notion (awareness, experience, skills, knowledge, mind) and its axiological component (politeness, correctness, professionalism, responsibility, respect). Some reactions testify to the process of identifying competence with the professional sphere of activity (profession, job). As a result of processing of associative reactions, it has been established that the associative gestalt of the word-stimulus forms 10 zones – the notional components, the subject, the subject’s activity, the field of the subject’s activity, leading features of the subject’s activity, the moral and ethical face of the subject of activity, characteristic features of the subject’s activity, evaluative reactions, individual reactions, emotions. Each zone of the associative gestalt in accordance with the quantitative indicators is assigned a rank from 1 to 9 (in two zones the number of reactions coincides). The core of the associative gestalt (ranks 1 – 2) includes frequency responses that correspond to the zones «Notional components» and «Leading features of the subject’s activity», the remaining zones (ranks 3 – 9) form the periphery. Core reactions indicate a sufficiently high level of respondents’ mastering of key components of the notion as well as realization of the demand for a new generation of specialists by native speakers that can effectively apply the acquired knowledge and skills in a certain field of activity. The article also deals with the analysis of associative reactions in accordance with the model of the epistemological structure of consciousness of native speakers. It was found out that in the linguistic consciousness of respondents a certain balance is maintained between subjective (the value and motivational sphere) and objective (the logical and notional sphere) images; dominant in the cognitive activity of informers is the mental level of consciousness images, since in the emotional and affective sphere there are no frequency responses, and the body-perceptual sphere is not represented verbally.


Author(s):  
Lucian T. Mândrea ◽  
Ioan I. Curta ◽  
Zoltan Z. Marosy

Abstract The research purpose is to present the possibilities of the human being which are useful in order to improve the personal level of energy and to achieve an increased balance and a strong self control. These are the necessary conditions to be performed and in the same time to maintain a good health. Humans usually use energy from external sources. But, first of all, by employing different personal techniques, one can reach a high level of balance, energy and self control. These are the simplest, the fastest, the most efficient, the most economical and also ecological ways to have energy. If these attempts are efficient, you are first of all warm, then less ill and stressed. Everybody should try these kinds of methods first. A comparison was made between the results from two consecutive years, obtained by measuring the subject using a Bio-Well device. It results an increase of 23% in the energy level, in the conditions that the other parameters are optimal. The general balance reached the value of 99.97%. The authors proved, with the occasion of these original measurements, that a perfect balance can be reached. Another set of original and new measurements reveal the possibility of the human being to have a good self control. The subject proposed and succeeded in moving the second body energy centre by his own will, which is the most important energy centre of the body in the Zen-Buddhism. This is a remarkable completely original result obtained, maybe, for the first time in the world. In principle, we could control then the positions of the all seven energy centers, one by one. And so, the whole balance of the body. Also, in this way an incredible personal control and level of performance and also a high level of happiness can be achieved.


1920 ◽  
Vol 24 (117) ◽  
pp. 498-504
Author(s):  
J. R. Pannell

The resistance offered by bodies to motion through fluids has for many years been a problem of the first importance, and one which has received a correspondingly large degree of attention both from scientific investigators and those commercially interested in the subject. A considerable amount of mathematical investigation has been carried out; but a detailed study of fluid motion has only proved possible in the case of a perfect fluid, i.e., one in which viscosity is not present. Assumptions have been made as to the quantities upon which the motion of the fluid and the body depends, and formulæ have been prepared expressing the laws connecting force and speed for dynamically similar bodies.In the present note attention will be directed chiefly to the case where the only properties of the fluid upon which the motion depends are the viscosity and density, though brief mention may be made of instances where the acceleration due to gravity is also important.


2018 ◽  
Vol 2 (5) ◽  
pp. 789
Author(s):  
Maria Yulianti

The background of this study was the low student learning outcomes of PPKn, from 28 students who achievedthe completeness criteria at least only 11 students (39.29%). The low student learning outcomes are caused bythe high level of individuality between students so that the achievement of competence among studentsexperiences a very distant difference. Based on this, the researchers made improvements to student learningoutcomes through the application of STAD cooperative learning models. This research is a classroom actionresearch, with the subject of class VII of SMP Negeri 3 Teluk Kuantan. The data used in this study is PPKnlearning outcomes data. The results stated that after applying the STAD type cooperative learning model studentlearning outcomes had increased in the initial data the number of students who completed were 11 students, incycle I had an increase with the number of 18 students, and in cycle II the number of students who completedcontinued to increase by the number 22 student.


2009 ◽  
Vol 27 (1) ◽  
pp. 65-92
Author(s):  
Susan Jones

This article explores the diversity of British literary responses to Diaghilev's project, emphasising the way in which the subject matter and methodologies of Diaghilev's modernism were sometimes unexpectedly echoed in expressions of contemporary British writing. These discussions emerge both in writing about Diaghilev's work, and, more discretely, when references to the Russian Ballet find their way into the creative writing of the period, serving to anchor the texts in a particular cultural milieu or to suggest contemporary aesthetic problems in the domain of literary aesthetics developing in the period. Figures from disparate fields, including literature, music and the visual arts, brought to their criticism of the Ballets Russes their individual perspectives on its aesthetics, helping to consolidate the sense of its importance in contributing to the inter-disciplinary flavour of modernism across the arts. In the field of literature, not only did British writers evaluate the Ballets Russes in terms of their own poetics, their relationship to experimentation in the novel and in drama, they developed an increasing sense of the company's place in dance history, its choreographic innovations offering material for wider discussions, opening up the potential for literary modernism's interest in impersonality and in the ‘unsayable’, discussions of the body, primitivism and gender.


2018 ◽  
Vol 27 (1) ◽  
pp. 5-21
Author(s):  
Amanda Dennis

Lying in ditches, tromping through mud, wedged in urns, trash bins, buried in earth, bodies in Beckett appear anything but capable of acting meaningfully on their environments. Bodies in Beckett seem, rather, synonymous with abjection, brokenness, and passivity—as if the human were overcome by its materiality: odours, pain, foot sores, decreased mobility. To the extent that Beckett's personae act, they act vaguely (wandering) or engage in quasi-obsessive, repetitive tasks: maniacal rocking, rotating sucking stones and biscuits, uttering words evacuated of sense, ceaseless pacing. Perhaps the most vivid dramatization of bodies compelled to meaningless, repetitive movement is Quad (1981), Beckett's ‘ballet’ for television, in which four bodies in hooded robes repeat their series ad infinitum. By 1981, has all possibility for intentional action in Beckett been foreclosed? Are we doomed, as Hamm puts it, to an eternal repetition of the same? (‘Moments for nothing, now as always, time was never and time is over, reckoning closed and story ended.’)This article proposes an alternative reading of bodily abjection, passivity and compulsivity in Beckett, a reading that implies a version of agency more capacious than voluntarism. Focusing on Quad as an illustrative case, I show how, if we shift our focus from the body's diminished possibilities for movement to the imbrication of Beckett's personae in environments (a mound of earth), things, and objects, a different story emerges: rather than dramatizing the impossibility of action, Beckett's work may sketch plans for a more ecological, post-human version of agency, a more collaborative mode of ‘acting’ that eases the divide between the human, the world of inanimate objects, and the earth.Movements such as new materialism and object-oriented ontology challenge hierarchies among subjects, objects and environments, questioning the rigid distinction between animate and inanimate, and the notion of the Anthropocene emphasizes the influence of human activity on social and geological space. A major theoretical challenge that arises from such discourses (including 20th-century challenges to the idea of an autonomous, willing, subject) is to arrive at an account of agency robust enough to survive if not the ‘death of the subject’ then its imbrication in the material and social environment it acts upon. Beckett's treatment of the human body suggests a version of agency that draws strength from a body's interaction with its environment, such that meaning is formed in the nexus between body and world. Using the example of Quad, I show how representations of the body in Beckett disturb the opposition between compulsivity (when a body is driven to move or speak in the absence of intention) and creative invention. In Quad, serial repetition works to create an interface between body and world that is receptive to meanings outside the control of a human will. Paradoxically, compulsive repetition in Beckett, despite its uncomfortable closeness to addiction, harnesses a loss of individual control that proposes a more versatile and ecologically mindful understanding of human action.


2020 ◽  
Vol 7 (1) ◽  
pp. 41-70
Author(s):  
Enas Fares Yehia ◽  
Walaa Mohamed Abdelhakim

Throughout the ages, people have shown great interest in music and singing of all kinds, giving these expressive forms great importance in different eras. This article aims to comprehensively overview the etiquette, customs, and characteristic rules of polite performance in the profession of female solo singing in ancient and modern Egypt from a comparative view. This is achieved by reviewing the distinctive themes of female solo singers and their contexts in both ancient and modern Egypt. The article employs a descriptive-comparative methodology to provide a detailed sequential investigation and analysis of all the data collected on the subject and the themes of female solo singers; to discern the characteristic features of female solo singing etiquette in ancient Egypt; and to identify the similarities and differences of these features in the masters and famous models of modern Egypt. One of the main findings is that the distinctive characteristics of female solo singing in ancient Egypt have been inherited in the style of oriental but not western singing, and the greatest and most widely known model of the former style is “the Oriental singing lady Umm Kulthum”.


Author(s):  
Aleksey Klokov ◽  
Evgenii Slobodyuk ◽  
Michael Charnine

The object of the research when writing the work was the body of text data collected together with the scientific advisor and the algorithms for processing the natural language of analysis. The stream of hypotheses has been tested against computer science scientific publications through a series of simulation experiments described in this dissertation. The subject of the research is algorithms and the results of the algorithms, aimed at predicting promising topics and terms that appear in the course of time in the scientific environment. The result of this work is a set of machine learning models, with the help of which experiments were carried out to identify promising terms and semantic relationships in the text corpus. The resulting models can be used for semantic processing and analysis of other subject areas.


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