scholarly journals Thermal Ionization for Short-Range Potentials

2021 ◽  
Vol 182 (1) ◽  
Author(s):  
David Hasler ◽  
Oliver Siebert
Keyword(s):  
Time Evolution ◽  
Short Range ◽  
The Self ◽  
Thermal Ionization ◽  
Positive Temperature ◽  
Bosonic Field ◽  
Compactly Supported ◽  
Smooth Potential ◽  
Concrete Model ◽  
Rule Out

AbstractWe study a concrete model of a confined particle in form of a Schrödinger operator with a compactly supported smooth potential coupled to a bosonic field at positive temperature. We show, that the model exhibits thermal ionization for any positive temperature, provided the coupling is sufficiently small. Mathematically, one has to rule out that zero is an eigenvalue of the self-adjoint generator of time evolution—the Liouvillian. This will be done by using positive commutator methods with dilations in the space of scattering functions. Our proof relies on a spatial cutoff in the coupling but does otherwise not require any unnatural restrictions.

The 7E Model of the Human Mind: Articulating a Plastic Self for the Cognitive Science of Religion

2019 ◽  
Vol 19 (5) ◽  
pp. 450-476
Author(s):  
Flavio A. Geisshuesler
Keyword(s):  
Cognitive Science ◽  
Human Mind ◽  
Religious Studies ◽  
The Self ◽  
Cognitive Science Of Religion ◽  
Cognitive Sciences ◽  
Religious Mind ◽  
Science Of Religion ◽  
Concrete Model

AbstractThis article proposes a 7E model of the human mind, which was developed within the cognitive paradigm in religious studies and its primary expression, the Cognitive Science of Religion (CSR). This study draws on the philosophically most sophisticated currents in the cognitive sciences, which have come to define the human mind through a 4E model as embodied, embedded, enactive, and extended. Introducing Catherine Malabou’s concept of “plasticity,” the study not only confirms the insight of the 4E model of the self as a decentered system, but it also recommends two further traits of the self that have been overlooked in the cognitive sciences, namely the negativity of plasticity and the tension between giving and receiving form. Finally, the article matures these philosophical insights to develop a concrete model of the religious mind, equipping it with three further Es, namely emotional, evolved, and exoconscious.

scholarly journals The Subject of Critique: Ricoeur in Dialogue with Feminist Philosophers

2013 ◽  
Vol 4 (1) ◽  
pp. 21-39
Author(s):  
Annemie Halsema
Keyword(s):  
Feminist Theory ◽  
Thought Experiments ◽  
The Self ◽  
Major Point ◽  
The Subject ◽  
Rule Out

This paper aims to show the relevance of Ricœur’s notion of the self for postmodern feminist theory, but also to critically assess it. By bringing Ricœur’s “self” into dialogue with Braidotti’s, Irigaray’s and Butler’s conceptions of the subject, it shows that it is close to the feminist self in that it is articulated into language, is embodied and not fully conscious of itself. In the course of the argument, the major point of divergence also comes to light, namely, that the former considers discourse to be a laboratory for thought experiments, while the latter consider discourse to be normative, restrictive and exclusive. In the second part, the possibility of critique and change are further developed. Ricœur does not rule out critique, rather interpretation includes distanciation and critique. Finally, his notion of productive imagination explains how new identifications become possible. 

A reaction model on the self-assembly process of octahedron-shaped coordination capsules

2017 ◽  
Vol 19 (31) ◽  
pp. 20338-20342 ◽  
Author(s):  
Yoshihiro Matsumura ◽  
Shuichi Hiraoka ◽  
Hirofumi Sato
Keyword(s):  
Master Equation ◽  
Time Evolution ◽  
Self Assembly ◽  
Reaction Model ◽  
The Self ◽  
Assembly Process

Master equation was utilized to track the time evolution in a self-assembly process.

Hegel's System of Needs: The Elementary Relations of Economic Justice

1998 ◽  
Vol 19 (1-2) ◽  
pp. 51-72
Author(s):  
David Merrill
Keyword(s):  
Civil Society ◽  
Economic Justice ◽  
The Self ◽  
Self Determination ◽  
Social Character ◽  
Natural Necessity ◽  
Philosophy Of Right ◽  
Characteristic Features ◽  
Rule Out

The Philosophy of Right is not usually taken to contain a prescriptive ethics. Yet to establish as much regarding the elementary relations of the economy is the task of this essay. The project is cast into three parts. It begins with Hegel's account in the ‘Introduction’ of the free self prior to the exposition of the modes of just conduct or philosophy of right proper. It is an account of freedom not yet realized — without any particular content. Yet, the point is established that the philosophy of justice will be based on a twofold notion of self-determination. Most of the ‘Introduction’ concerns the argument that freedom or valid conduct has to do with pure self-determination, the self determining itself. The claim is also made that philosophy establishes its own legitimacy through its conceptual self-determination. Part two deals with the question of how freedom can be realized in civil society where the individual's governing orientation is particularity. The characteristic features of civil society do not encourage the expectation that freedom can be realized there. One, particularity itself appears to be rooted in a natural necessity which seems to preclude any possibility of freedom. Two, the inherently social character of civil society seems to rule out the exercise of a freedom that is about the self's relation to itself in self-determination. Three, the pursuit of particularity characteristic of civil society seems inherently antisocial and thus not a suitable mode of conduct for ethics. However, the argument will be made that the theory can conceive of the relations of particularity in a way that makes the free self inherently social and particularity both social and free from natural determinations.

Framboid Self-Assembly and Self-Organization

2021 ◽  
pp. 262-282
Author(s):  
David Rickard
Keyword(s):  
Self Assembly ◽  
Energy Minimization ◽  
Short Range ◽  
Colloidal Particles ◽  
Repulsive Force ◽  
The Self ◽  
Icosahedral Symmetry ◽  
Entropy Maximization ◽  
Close Packed Structure ◽  
Packed Structure

The formation of framboids involves two distinct processes. First, pyrite microcrystals aggregate into spherical groups through surface free energy minimization. The self-assembly of framboid microcrystals to form framboids is consistent with estimations based on the classical Derjaguin-Landau-Verwey-Overbeek (DVLO) theory, which balances the attraction between particles due to the van der Waals forces against the interparticle electrostatic repulsive force. Second, the microcrystals rearrange themselves into ordered domains through entropy maximization. Icosahedral symmetry tends to minimize short-range attractive interactions and maximize entropy. The physical processes which facilitate this rearrangement are Brownian motion and surface interactions. Curved framboid interface enforce deviation from the cubic close packed structure. In the absence of a curved surface, weakly interacting colloidal particles preferentially self-assemble into a cubic close packed structure, and this is observed in irregular, non-framboidal aggregates of pyrite micro- and nanocrystals.

Paris Theologians on War and Peace, 1521–1529

1972 ◽  
Vol 41 (2) ◽  
pp. 168-185
Author(s):  
Walter F. Bense
Keyword(s):  
Long Range ◽  
Short Range ◽  
The Self ◽  
Range Effect ◽  
War And Peace ◽  
Wars Of Religion ◽  
General Attitude ◽  
First Crusade ◽  
Independent States ◽  
Medieval Model

The period from 1521 to 1529 marks the transition from the suppression of the personal Protestantism of Luther to the emergence of political Protestantism as a force to be reckoned with. Unavoidably, perhaps, this transition brought with it a change in the general attitude toward war and peace, indeed, in the self-understanding of Europe. The medieval model of a Christendom united under the cross and the papacy, ideally at peace within and at war only with the infidel, was becoming obsolete. Having entered upon its period of dominance with the simultaneous proclamation of the Peace of God and the First Crusade by Pope Urban II in 1095, it may be said to expire with the Peace of Cambrai of 1529. The modern model, of a community of independent states whose autonomy is grounded in natural law and whose bond of union is vaguely cultural rather than specifically religious, is already reflected in Luther's 1529 treatise, On War Against the Turk? The short-range effect of the transformation of 1521/29 was the desacralization of the Turkish war and the redirection of the crusading spirit against the Protestants. The long-range effect would seem to have been the rise of modern Europe—out of the throes of the Wars of Religion—as a system of more or less secular and national states.

Hematite Nano Cubes and the Prototypes of Their Self Assembly Investigated Using Tem

1996 ◽  
Vol 432 ◽  
Author(s):  
San Yu ◽  
Shihai Kan ◽  
Guangtian Zou ◽  
Xiaogang Peng ◽  
Dongmei Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Self Assembly ◽  
Short Range ◽  
The Self ◽  
Magnetic Feature ◽  
Preferential Growth ◽  
Single Crystalline ◽  
Transmission Electron ◽  
Assembly Feature ◽  
Equilibrium Shapes

AbstractMonodisperse hematite cubes about 30nm in size have been prepared by aging a refluxing acidified aqueous solution of FeCl3 in an open vessel. The as grown nano cubes were determined to be single crystalline hematite in perfect cubic shapes using transmission electron microscope and electron diffraction. The nano cube is one of the equilibrium shapes of hematite, which is resumed to be formed by preferential growth in certain crystallographic directions through the species diffusion in the aqueous solutions.Some self-assembly prototypes have been observed, such as the short range ordered buildup consisting of several brick-like hematite nano cubes and the nano box consisted of square plates of hematite nanocrystals. The drive force for the formation of the above assemblies is assumed to be the unique magnetic feature of the single crystalline hematite nano cubes.The perfect shape and the self-assembly feature give a possibility to fabricate bulk ceramics orderly assembled using hematite nano cubes.

scholarly journals Cooperative particle rearrangements facilitate the self-organized growth of colloidal crystal arrays on strain-relief patterns

2020 ◽  
Vol 6 (10) ◽  
pp. eaay8418
Author(s):  
Manodeep Mondal ◽  
Chandan K. Mishra ◽  
Rajdeep Banerjee ◽  
Shobhana Narasimhan ◽  
A. K. Sood ◽  
...  
Keyword(s):  
Short Range ◽  
Colloidal Crystal ◽  
The Self ◽  
Surface Structures ◽  
Monolayer Films ◽  
Strain Relief ◽  
Surface Transport ◽  
Self Organized ◽  
Organizational Principle ◽  
Hexagonally Ordered

Strain-relief pattern formation in heteroepitaxy is well understood for particles with long-range attraction and is a routinely exploited organizational principle for atoms and molecules. However, for particles with short-range attraction such as colloids and nanoparticles, which form brittle assemblies, the mechanism(s) of strain-relief is not known. Here, we found that for colloids with short-range attraction, monolayer films on substrates with square symmetry could accommodate large compressive misfit strains through locally dewetted hexagonally ordered stripes. Unexpectedly, over a window of compressive strains, cooperative particle rearrangements first resulted in a periodic strain-relief pattern, which then guided the growth of laterally ordered defect-free colloidal crystals. Particle-resolved imaging of monomer dynamics on strained substrates also helped uncover cooperative kinetic pathways for surface transport. These processes, which substantially influenced the film morphology, have remained unobserved in atomic heteroepitaxy studies hitherto. Leaning on our findings, we developed a heteroepitaxy approach for fabricating hierarchically ordered surface structures.

Effects of short-range correlations on the self-energy in the optical model of finite nuclei

1992 ◽  
Vol 539 (2) ◽  
pp. 189-208 ◽  
Author(s):  
M. Borromeo ◽  
D. Bonatsos ◽  
H. Müther ◽  
A. Polls
Keyword(s):  
Short Range ◽  
Optical Model ◽  
The Self ◽  
Self Energy ◽  
Finite Nuclei ◽  
Short Range Correlations

scholarly journals Bubbles in superfluid helium containing six and eight electrons: Soft, quantum nanomaterial

2021 ◽  
Vol 7 (28) ◽  
pp. eabi7128
Author(s):  
Neha Yadav ◽  
Prosenjit Sen ◽  
Ambarish Ghosh
Keyword(s):  
Superfluid Helium ◽  
Self Assembly ◽  
Short Range ◽  
Soft Materials ◽  
The Self ◽  
Bulk Liquid ◽  
Helium 4 ◽  
Vortex Lines ◽  
Cavitation Threshold

The role of quantum fluctuations in the self-assembly of soft materials is relatively unexplored, which could be important in the development of next-generation quantum materials. Here, we report two species of nanometer-sized bubbles in liquid helium-4 that contain six and eight electrons, forming a versatile, platform to study self-assembly at the intersection of classical and quantum worlds. These objects are formed through subtle interplay of the short-range electron-helium repulsion and easy deformability of the bulk liquid. We identify these nanometric bubbles in superfluid helium using cavitation threshold spectroscopy, visualize their decoration of quantized vortex lines, and study their creation through multiple methods. The objects were found to be stable for at least 15 milliseconds at 1.5 kelvin and can therefore allow fundamental studies of few-body quantum interactions under soft confinements.

Sign in / Sign up

Export Citation Format

Share Document