scholarly journals Preface

2016 ◽  
Vol 15 (03) ◽  
pp. 1602001
Author(s):  
X. Oriols
Keyword(s):  
Brownian Motion ◽  
Dust Particle ◽  
Statistical Prediction ◽  
Natural Phenomena ◽  
Special Issue ◽  
Quantum Theories ◽  
Butterfly Effect ◽  
The Difference ◽  
Quantum Phenomena

This paper is an introduction to the eleven works of the special issue on Quantum and Classical Frontiers of Noise. The weather, and its butterfly effect, is the typical example that explain why many natural phenomena are, in fact, not predictable with certainty. Noise in classical or quantum phenomena, understood as the difference between the empirical output of an experiment and its statistical prediction, is a measure of such uncertainty. One of the great contributions of noise appeared in 1905 when Einstein showed how the noisy (Brownian) motion of a dust particle seen in a microscope provided uncontroversial evidences on the existence of the (unseen) atoms. The aim of this special issue is to provoke discussions on how noise can help us to better understand (the reality behind) classical and quantum theories, and the frontier between them.

scholarly journals Condensation of SIP Particles and Sticky Brownian Motion

2021 ◽  
Vol 183 (3) ◽  
Author(s):  
Mario Ayala ◽  
Gioia Carinci ◽  
Frank Redig
Keyword(s):  
Brownian Motion ◽  
Interacting Particle Systems ◽  
Particle Systems ◽  
Self Duality ◽  
Inclusion Process ◽  
Interacting Particle ◽  
New Information ◽  
Homogeneous Product ◽  
Coarsening Dynamics ◽  
The Difference

AbstractWe study the symmetric inclusion process (SIP) in the condensation regime. We obtain an explicit scaling for the variance of the density field in this regime, when initially started from a homogeneous product measure. This provides relevant new information on the coarsening dynamics of condensing interacting particle systems on the infinite lattice. We obtain our result by proving convergence to sticky Brownian motion for the difference of positions of two SIP particles in the sense of Mosco convergence of Dirichlet forms. Our approach implies the convergence of the probabilities of two SIP particles to be together at time t. This, combined with self-duality, allows us to obtain the explicit scaling for the variance of the fluctuation field.

scholarly journals Hakikat Ilmu Pengetahuan dalam Perspektif Modern dan Islam

2017 ◽  
Vol 7 (1) ◽  
pp. 81
Author(s):  
Via Linda Siswati
Keyword(s):  
Correspondence Theory ◽  
Human Experience ◽  
Coherence Theory ◽  
Natural Phenomena ◽  
Human Knowledge ◽  
Truth Theory ◽  
Sources Of Knowledge ◽  
The Difference ◽  
Basic Characteristics ◽  
Structure Of Knowledge

Philosophy of science is a branch of philosophy that reflects, radically and integral about the nature of knowledge itself. This writing aims to understand: (1) understanding of knowledge and science in etymology and terminology. (2) the difference of science, knowledge and religion in epistimology. (3) the extent of science in Islam. (4) the basic characteristics of science. (5) truth theory. (6) sources of knowledge. (7) the boundaries of science (8) the structure of knowledge. The results of this paper are: (1) science is from Arabic, 'alima. The meaning of this word is knowledge. And science in terminology is the whole conscious effort to investigate, find, and improve human understanding from various aspects of reality in human nature and we know (2) The location of the difference is the science is a summary of a collection of knowledge or the result of knowledge and facts, The order of faith or order of belief in the existence of something absolute outside man, in accordance and in line with the order of faith and order of worship. (3) The principal features of science are as follows: (a) Systematic, (b) Authenticity, (c) Rationality, (d) Objectivity, (e) Verifiability, (f) Communality. (4) The theory in a theory of truth there are 3 namely: Correspondence Theory, Coherence Theory, Theory of Pragmatism. (4) The source of human knowledge uses two ways of obtaining correct knowledge, first through rationality and secondly through experience. (5) Science limits its exploration to human experience, hence science begins on exploration of human experience and ceases to human experience, and that is the limit of knowledge. (6) Science is essentially a collection of knowledge that explains the various natural phenomena that allow humans to perform a series of actions to master these symptoms based on existing explanations.

Introduction to the Special Issue on First-Person Methods in HCI

2021 ◽  
Vol 28 (6) ◽  
pp. 1-12
Author(s):  
Audrey Desjardins ◽  
Oscar Tomico ◽  
Andrés Lucero ◽  
Marta E. Cecchinato ◽  
Carman Neustaedter
Keyword(s):  
Human Computer Interaction ◽  
First Person ◽  
Special Issue ◽  
Second Person ◽  
Third Person ◽  
The Difference ◽  
Future Work ◽  
Computer Interaction

In this introduction to the special issue on First-Person Methods in (Human-Computer Interaction) HCI, we present a brief overview of first-person methods, their origin, and their use in Human-Computer Interaction. We also detail the difference between first-person methods, second-person, and third-person methods, as a way to guide the reader when engaging the special issue articles. We articulate our motivation for putting together this special issue: we wanted a collection of works that would allow HCI researchers to develop further, define, and outline practices, techniques and implications of first-person methods. We trace links between the articles in this special issue and conclude with questions and directions for future work in this methodological space: working with boundaries, risk, and accountability.

Dual Role of Nanoparticles in the Thermal Conductivity Enhancement of Nanoparticle Suspensions

2005 ◽  
Author(s):  
Calvin H. Li ◽  
G. P. Peterson
Keyword(s):  
Experimental Data ◽  
Thermal Conductivity ◽  
Brownian Motion ◽  
Theoretical Models ◽  
Conductivity Enhancement ◽  
Nanoparticle Suspensions ◽  
The Difference ◽  
Physical Phenomena ◽  
Good Agreement

Experimental evidence exists that the addition of a small quantity of nanoparticles to a base fluid, can have a significant impact on the effective thermal conductivity of the resulting suspension. The causes for this are currently thought to be due to a combination of two distinct mechanisms. The first is due to the change in the thermophysical properties of the suspension, resulting from the difference in the thermal conductivity of the fluid and the particles, and the second is thought to be due to the transport of thermal energy by the particles, due to the Brownian motion of the particles. In order to better understand these phenomena, a theoretical model has been developed that examines the effect of the Brownian motion. In this model, the well-known approach first presented by Maxwell, is combined with a new expression that incorporates the effect of the Brownian motion and describes the physical phenomena that occurs because of it. The results indicate that the enhanced thermal conductivity may not in fact be due to the transport of energy by the particles, but rather, due to the stirring motion caused by the movement of the nanoparticles which enhances the heat transfer within the fluid. The resulting model shows good agreement when compared with the existing experimental data and perhaps more importantly helps to explain the trends observed from a fundamental physical perspective. In addition, it provides a possible explanation for the differences that have been observed between the previously obtained experimental data, the predictions obtained from Maxwell’s equation and the theoretical models developed by other investigators.

Winding angle and maximum winding angle of the two-dimensional random walk

1991 ◽  
Vol 28 (4) ◽  
pp. 717-726 ◽  
Author(s):  
Claude Bélisle ◽  
Julian Faraway
Keyword(s):  
Asymptotic Behavior ◽  
Brownian Motion ◽  
Random Walk ◽  
Random Walks ◽  
Computer Simulations ◽  
Asymptotic Distributions ◽  
Two Dimensional ◽  
Exact Distributions ◽  
The Difference ◽  
Winding Angle

Recent results on the winding angle of the ordinary two-dimensional random walk on the integer lattice are reviewed. The difference between the Brownian motion winding angle and the random walk winding angle is discussed. Other functionals of the random walk, such as the maximum winding angle, are also considered and new results on their asymptotic behavior, as the number of steps increases, are presented. Results of computer simulations are presented, indicating how well the asymptotic distributions fit the exact distributions for random walks with 10m steps, for m = 2, 3, 4, 5, 6, 7.

scholarly journals Hakikat Ilmu Pengetahuan dalam Perspektif Modern dan Islam

2017 ◽  
Vol 7 (1) ◽  
pp. 81
Author(s):  
Via Linda Siswati
Keyword(s):  
Correspondence Theory ◽  
Human Experience ◽  
Coherence Theory ◽  
Natural Phenomena ◽  
Human Knowledge ◽  
Truth Theory ◽  
Sources Of Knowledge ◽  
The Difference ◽  
Basic Characteristics ◽  
Structure Of Knowledge

Philosophy of science is a branch of philosophy that reflects, radically and integral about the nature of knowledge itself. This writing aims to understand: (1) understanding of knowledge and science in etymology and terminology. (2) the difference of science, knowledge and religion in epistimology. (3) the extent of science in Islam. (4) the basic characteristics of science. (5) truth theory. (6) sources of knowledge. (7) the boundaries of science (8) the structure of knowledge. The results of this paper are: (1) science is from Arabic, 'alima. The meaning of this word is knowledge. And science in terminology is the whole conscious effort to investigate, find, and improve human understanding from various aspects of reality in human nature and we know (2) The location of the difference is the science is a summary of a collection of knowledge or the result of knowledge and facts, The order of faith or order of belief in the existence of something absolute outside man, in accordance and in line with the order of faith and order of worship. (3) The principal features of science are as follows: (a) Systematic, (b) Authenticity, (c) Rationality, (d) Objectivity, (e) Verifiability, (f) Communality. (4) The theory in a theory of truth there are 3 namely: Correspondence Theory, Coherence Theory, Theory of Pragmatism. (4) The source of human knowledge uses two ways of obtaining correct knowledge, first through rationality and secondly through experience. (5) Science limits its exploration to human experience, hence science begins on exploration of human experience and ceases to human experience, and that is the limit of knowledge. (6) Science is essentially a collection of knowledge that explains the various natural phenomena that allow humans to perform a series of actions to master these symptoms based on existing explanations.

scholarly journals The efficiency of risk sharing between UK and US: Robust estimation and calibration under market incompleteness

2020 ◽  
Vol 39 (2) ◽  
pp. 303
Author(s):  
Marcelo Fernandes ◽  
Jose Gil Vieira Filho
Keyword(s):  
Stochastic Process ◽  
Brownian Motion ◽  
Utility Function ◽  
Robust Estimation ◽  
Risk Sharing ◽  
Asset Returns ◽  
International Risk Sharing ◽  
Market Incompleteness ◽  
Consumption Data ◽  
The Difference

We propose a novel estimator for the amount of international risk sharing that depends exclusively on asset returns data. In particular, our estimator has a nonparametric flavor in that it makes no parametric assumption on preferences and on the stochastic process that governs the dynamics of asset returns. This is in contrast with the existing estimators in the literature that either assume a specific utility function or that asset returns follow a geometric Brownian motion (GBM). Our estimates reveal there is less risk sharing between UK and US than one would find under the GBM assumption, though much more than what consumption data might suggest. Moreover, a simple calibration analysis shows that market incompleteness alone is enough to explain the difference between the consumption-based estimate of the risk-sharing index and ours.

scholarly journals Preface

2019 ◽  
Vol 9 (2) ◽  
pp. 1
Author(s):  
Décio Krause ◽  
Federico Holik
Keyword(s):  
Special Issue ◽  
Quantum Theories

Preface to the Special Issue: Foundations and Philosophy of Quantum Theories and Related Subjects.

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