scholarly journals Influence of 3D Centro-Symmetry on a 2D Retinal Image

Symmetry ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1863
Author(s):  
Tadamasa Sawada
Keyword(s):  
Visual System ◽  
Human Visual System ◽  
Retinal Image ◽  
Rotational Symmetry ◽  
Point Of View ◽  
Theoretical Point ◽  
Geometrical Properties ◽  
Symmetrical Object ◽  
Orthographic Image ◽  
The Relationship

An object is 3D centro-symmetrical if the object can be segmented into two halves and the relationship between them can be represented by a combination of reflection about a plane and a rotation through 180° about an axis that is normal to the plane. A 2D orthographic image of the 3D centro-symmetrical object is always 2D rotation-symmetrical. Note that the human visual system is known to be sensitive to 2D rotational symmetry. This human sensitivity to 2D rotational symmetry might also be used to detect 3D centro-symmetry. If it is, can this detection of 3D centro-symmetry be helpful for the perception of 3D? In this study, the geometrical properties of 3D centro-symmetry and its 2D orthographic and perspective projections were examined to find out whether 3D centro-symmetry plays any role in the perception of 3D. I found that, from a theoretical point-of-view, it is unlikely that 3D centro-symmetry can be used by the human visual system to organize a 2D image of an object in a way that makes it possible to recover the 3D shape of an object from its 2D image.

Research on Related Model for Urban Public Crisis Handle Mechanism

2014 ◽  
Vol 989-994 ◽  
pp. 5540-5543
Author(s):  
Yong Chang Ren
Keyword(s):  
Crisis Management ◽  
Evaluation Model ◽  
Point Of View ◽  
Theoretical Point ◽  
Analysis Model ◽  
The Public ◽  
Public Crisis ◽  
Crisis Events ◽  
Response And Recovery ◽  
The Relationship

China is in a critical period of urbanization, and various social contradictions continue to be accumulated, emerged and enlarged, so public crisis management mechanism has been highly valued by governments at all levels with the public crisis events are occurred frequently. The paper conducts study for the problems in the current urban public crisis handle mechanism. First, the evaluation model of crisis management can be researched, and crisis management can be divided into four stages to evaluate respectively, they are Reduction, Readiness, Response and Recovery; then, we should research crisis prediction model to strengthen prediction, prevention and monitoring of the crisis before the crisis happened; finally, stakeholders analysis model should be studied, and scientific analyzing the interests of the various stakeholders and the relationship among them. From the theoretical point of view, the paper carries on a study for crisis handle mechanism to provide support for improving the crisis handle level.

scholarly journals 'Parecen que lo olvidan': Plurals did it again

2018 ◽  
Vol 7 (1) ◽  
pp. 71-96
Author(s):  
María Mare ◽  
Enrique Pato
Keyword(s):  
Active Role ◽  
Point Of View ◽  
Theoretical Point ◽  
Case Theory ◽  
Formal Properties ◽  
The Relationship ◽  
Spanish Dialects

The distribution of DDPP in raising constructions –depending on the embedded clause’s formal properties– has been essential for Case Theory and movement. Likewise, the behavior of DDPP, according to agreement facts, has given rise to relevant discussions about the kind of movement involved (A-Movement/A’-Movement). Nevertheless, this distribution is not so clear in certain Spanish dialects, which shows a double agreement effects. It means that the embedded verb as well as the raising verb (parecer ‘to seem’) present inflectional number (and person) morphology: Parece-n que lo olvida-n (seem.3PL that it forget.3PL ‘They seem to forget him’). The analysis of the data in these varieties allows us to define many characteristics which are relevant from a descriptive and a theoretical point of view. Descriptively, it is possible to identify some notable particularities, with respect to the position of the DP, which triggers agreement and the interaction of these constructions with dative experiencers as well (Me parece que... ‘It seems to me that...’). From a theoretical point of view, these data have consequences for approaches on agreement, on the relationship between Case and movement, and on the discussion regarding the Experiencer Paradox in Spanish. Additionally, they allow us to identify a new empirical domain in which a DP plural number feature has an active role in the Probe-Goal domain.

Emergency, War and International Law – Another Perspective

2001 ◽  
Vol 70 (1-2) ◽  
pp. 29-63 ◽  
Author(s):  
◽  
Keyword(s):  
International Law ◽  
Point Of View ◽  
Theoretical Point ◽  
Clear Cut ◽  
Internal Armed Conflict ◽  
Theoretical Perspectives ◽  
State Behaviour ◽  
Emergency Responses ◽  
The Relationship ◽  
State Experience

AbstractThis article evaluates a spectrum of emergency responses by states. We are interested in exploring the variety of contexts in which states respond to internal and external crisis, and the manner in which international law contextualises and responds to the use of extreme measures by states. While international lawyers have become attuned to the prerogatives of states in derogating from their international human rights treaty obligations, we contend that this constitutes only one aspect of state emergency responses. We explore the extent to which states resort to extra-ordinary measures in multiple ways. In particular, we explore the relationship between war and emergency, from a theoretical point of view. Both classic inter-state conflicts are examined, as are the multiple situations of internal armed conflict, that frequently escape precise legal definition under international law. We take the view that international law has taken a limited and unrepresentative view of the scope and breadth of the emergency phenomena in state practice. From this general position some general observations follow. First, we identify the tendency of legal scholars to assert that clear dichotomies exist between normal and extreme conditions, when such clear-cut distinctions are not present. From this, we argue that `war' and `emergency', are not unique and entirely distinct phenomena. In short, we submit that emergency and its associated practices is a far more wide-spread and pervasive aspect of state experience and action than has generally been accepted by legal scholars and political thinkers. The consequence of this rethinking is a need to redefine the resort to the extraordinary in our perception of state behaviour and to modify our theoretical perspectives accordingly.

Exclusive corporate philanthropy: rethinking the nexus of CSR and corporate philanthropy

2016 ◽  
Vol 12 (2) ◽  
pp. 280-294 ◽  
Author(s):  
Georg von Schnurbein ◽  
Peter Seele ◽  
Irina Lock
Keyword(s):  
Corporate Philanthropy ◽  
Point Of View ◽  
Future Research ◽  
Special Role ◽  
Theoretical Point ◽  
Bottom Line ◽  
Content Type ◽  
Different Characteristics ◽  
Relationship Of ◽  
The Relationship

Purpose The purpose of this paper is to add to a better understanding of relationship of corporate social responsibility (CSR) and corporate philanthropy. The authors argue that corporate philanthropy is exclusive to CSR because of their different characteristics. Design/methodology/approach This paper is based on a profound literature review and discusses the relationship of CSR and corporate philanthropy from a theoretical point of view. By conceptually combining the CSR pyramid and the triple bottom line approach, the authors show that corporate philanthropy has a special role outside of the classical CSR concept. Findings Four fundaments of corporate philanthropy – economic, motivational, creative and moral – are described that illustrate the importance and outstanding role of corporate philanthropy for today’s businesses. Based on these, the authors formulate three new forms of corporate giving, volunteering and foundations, which the authors subsume under the novel notion of “exclusive corporate philanthropy”. Research limitations/implications The main contribution of this paper for future research is to regard corporate philanthropy as exclusive to CSR. Future studies might, therefore, consider the different characteristics of corporate philanthropy and engage in an empirical investigation of this new type. Practical implications The model of exclusive corporate philanthropy presented in this paper provides practitioners with a better understanding of how corporate philanthropy can be rolled out today. Originality/value This paper offers a new perspective on the relationship of CSR and corporate philanthropy. Based on the economic, motivational, creative and moral characteristics of corporate philanthropy, the authors establish a clear distinction between the two concepts.

scholarly journals ABAYSTUDIES- SPIRITUAL TREASURE OF KAZAKH CIVILIZATION

2020 ◽  
Vol 73 (3) ◽  
pp. 305-312
Author(s):  
Т. Tebegenov ◽  
◽  
G. Esirkepova ◽  
М. Aitimov ◽  
◽  
...  
Keyword(s):  
Cultural Studies ◽  
Modern Philosophy ◽  
Political Science ◽  
Point Of View ◽  
Theoretical Point ◽  
Religious Educators ◽  
New Directions ◽  
Literary Heritage ◽  
Relationship Of ◽  
The Relationship

This article reveals in a new way the relationship of Abay's worldview with modern philosophy, pedagogy, psychology, cultural studies, sociology, political science; from a scientific and theoretical point of view, the harmony of the poet’s works with the works of religious educators of Islam is substantiated. Along with this, the article explores the image of the prototype in new literary works about Abai, the objectivity of the description of Kazakh life in them. Abaeology is a comprehensive branch of the study of the spiritual culture of the Kazakh people, so modern Abaeology is one of the relevant topics. A set of new studies is needed to study the classical literary heritage of Abay and its traditions from the point of view of the psychology of art. The article touches on the problems of the popularity of Abay's works among the foreign Kazakh diaspora, developing a program, the scientific and methodological foundations of studying Abay's work in their schools. New directions of research in this area and contemporary topical problems of Abaystudies are determined.

scholarly journals Antigone’s Collective Body Myth and Rewritings in Sara Uribe’s Antígona González

2020 ◽  
Author(s):  
Laura Alicino
Keyword(s):  
Latin American ◽  
Point Of View ◽  
Structural Function ◽  
Theoretical Point ◽  
Political Implications ◽  
The Relationship ◽  
Permanent Structure

In this article we will analyse the use of intertextuality in Sara Uribe’s Antígona González. From a theoretical point of view, we will focus on the relationship between Antígona González and both Sophocles’ myth and other European and Latin-American reinterpretations of it, trying to set the structural function of myth as a textual device, which tries to undermine its permanent structure. This specific use of myth will be therefore connected with the thematic dimension of Antigone’s body, in order to investigate the meaning of its collective re-use in the Mexican recontextualisation proposed by Uribe, together with all the esthetical, ethical and political implications derived from that.

scholarly journals Spectral memory: Illumination-evoked plasticity

2018 ◽  
Author(s):  
Ifedayo-Emmanuel Adeyefa-Olasupo
Keyword(s):  
Visual System ◽  
Real World ◽  
Human Visual System ◽  
Retinal Image ◽  
Spectral Composition ◽  
Colour Space ◽  
The Core ◽  
Core Set ◽  
Group 2 ◽  
Group 1

AbstractHere human trichromats were presented with two types of scenes – geometric and real-world scenes –tinted with a shade of colour in order to destabilize the perceived illumination, and chromaticity of the retinal image of each scene. Each trichromat was instructed to adjust the chromaticity of the object embedded within each scene until its surface appeared devoid of any hue in the DKL colour space which spans two chromatic opponent axes – the S–(L+M) and L– M axis – and a luminance axis – the L+M axis. The following observations were made : (i) across scenes, adjustments were dispersed along the S–(L+M) axis, along which daylight is known to vary; (ii) across trichromats, for the geometric scenes, adjustments were biased towards the S pole of the S–(L+M) axis for one group (group 1), and towards the (L+M) pole for the other group (group 2); (iii) for the real-world scenes, adjustments for both groups systematically converged towards the (L+M) pole. These results suggest that when the core set of priors upon which the human visual system typically relies become ill-equipped, the human visual system is able to recruit one of the two illumination priors – PriorS or PriorL+M – in combination with the representation it has formed over time about the spectral composition of the illuminant associated with scenes the trichromatic observer is currently being exposed to within its ecological niche, as it attempts to stabilize the chromaticity of the retinal image of real-world scenes.

Notizen: On a Field-Theoretic Formulation of Scaling Laws in Molecular Scattering

1979 ◽  
Vol 34 (7) ◽  
pp. 897-898
Author(s):  
E. Ficocelli Varracchio
Keyword(s):  
Boundary Conditions ◽  
Inelastic Scattering ◽  
Ab Initio ◽  
Scaling Laws ◽  
Point Of View ◽  
Theoretical Point ◽  
Rotational Excitation ◽  
Molecular Scattering ◽  
Excitation Processes ◽  
The Relationship

Vibro-rotational excitation processes, in particle-diatom scattering, are considered from a field-theoretical point of view. It is shown that a relaxation of the relationship directly connecting boundary conditions and reference state, of the Green's functions of the theory’, can lead to a formulation of ab initio “scaling laws”, for both elastic and inelastic scattering.

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