The Non-Causal Character of Renormalization Group Explanations

2018 ◽  
Author(s):  
Margaret Morrison
Keyword(s):  
Probability Theory ◽  
Renormalization Group ◽  
Dynamical Systems ◽  
Recent Literature ◽  
Mathematical Explanation ◽  
Causal Status ◽  
Physical Information ◽  
The Relationship ◽  
Structural Aspects

After reviewing some of the recent literature on non-causal and mathematical explanation, this chapter develops an argument as to why renormalization group (RG) methods should be seen as providing non-causal, yet physical, information about certain kinds of systems/phenomena. The argument centres on the structural character of RG explanations and the relationship between RG and probability theory. These features are crucial for the claim that the non-causal status of RG explanations involves something different from simply ignoring or “averaging over” microphysical details—the kind of explanations common to statistical mechanics. The chapter concludes with a discussion of the role of RG in treating dynamical systems and how that role exemplifies the structural aspects of RG explanations which in turn exemplifies the non-causal features.

Dynamics of G-processes

2020 ◽  
Vol 20 (01) ◽  
pp. 2050037
Author(s):  
W. Jung ◽  
K. Lee ◽  
C.A. Morales
Keyword(s):  
Dynamical Systems ◽  
Group Structure ◽  
Global Solutions ◽  
Topological Stability ◽  
Natural Group ◽  
Shadowing Property ◽  
Infinite Dimensional ◽  
Mathematical Sciences ◽  
The Relationship

A G-process is briefly a process ([A. N. Carvalho, J. A. Langa and J. C. Robinson, Attractors for Infinite-Dimensional Non-Autonomous Dynamical Systems, Applied Mathematical Sciences, Vol. 182 (Springer, 2013)], [C. M. Dafermos, An invariance principle for compact processes, J. Differential Equations 9 (1971) 239–252], [P. E. Kloeden and M. Rasmussen, Nonautonomous Dynamical Systems, Mathematical Surveys and Monographs, Vol. 176 (Amer. Math. Soc., 2011)]) for which the role of evolution parameter is played by a general topological group [Formula: see text]. These processes are broad enough to include the [Formula: see text]-actions (characterized as autonomous [Formula: see text]-processes) and the two-parameter flows (where [Formula: see text]). We endow the space of [Formula: see text]-processes with a natural group structure. We introduce the notions of orbit, pseudo-orbit and shadowing property for [Formula: see text]-processes and analyze the relationship with the [Formula: see text]-processes group structure. We study the equicontinuous [Formula: see text]-processes and use it to construct nonautonomous [Formula: see text]-processes with the shadowing property. We study the global solutions of the [Formula: see text]-processes and the corresponding global shadowing property. We study the expansivity (global and pullback) of the [Formula: see text]-processes. We prove that there are nonautonomous expansive [Formula: see text]-processes and characterize the existence of expansive equicontinuous [Formula: see text]-processes. We define the topological stability for [Formula: see text]-processes and prove that every expansive [Formula: see text]-process with the shadowing property is topologically stable. Examples of nonautonomous topologically stable [Formula: see text]-processes are given.

scholarly journals Data-driven design: the new challenges of digitalization on product design and development

2020 ◽  
Vol 6 ◽  
Author(s):  
Marco Cantamessa ◽  
Francesca Montagna ◽  
Stefania Altavilla ◽  
Alessandro Casagrande-Seretti
Keyword(s):  
Data Analytics ◽  
Recent Literature ◽  
Educational Institutions ◽  
Future Research ◽  
Design Activity ◽  
Research Questions ◽  
Current Impact ◽  
Managerial Level ◽  
The Relationship

Abstract Digitalization and the momentous role being assumed by data are commonly viewed as pervasive phenomena whose impact is felt in all aspects of society and the economy. Design activity is by no means immune from this trend, and the relationship between digitalization and design is decades old. However, what is the current impact of this ‘data revolution’ on design? How will the design activity change? What are the resulting research questions of interest to academics? What are the main challenges for firms and for educational institutions having to cope with this change? The paper provides a comprehensive conceptual framework, based on recent literature and anecdotal evidence from the industry. It identifies three main streams: namely the consequences on designers, the consequences on design processes and the role of methods for data analytics. In turn, these three streams lead to implications at individual, organizational and managerial level, and several questions arise worthy of defining future research agendas. Moreover, the paper introduces relational diagrams depicting the interactions between the objects and the actors involved in the design process and suggests that what is occurring is by no means a simple evolution but a paradigmatic shift in the way artefacts are designed.

scholarly journals Micronutrient Absorption and Related Outcomes in People with Inflammatory Bowel Disease: A Review

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1388 ◽  
Author(s):  
Kyle Kilby ◽  
Holly Mathias ◽  
Lindsay Boisvenue ◽  
Courtney Heisler ◽  
Jennifer L. Jones
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Recent Literature ◽  
Nutrient Status ◽  
Micronutrient Deficiency ◽  
Chronic Disorder ◽  
Inflammatory Bowel ◽  
Monitoring Treatment ◽  
The Relationship

Inflammatory Bowel Disease (IBD) is a chronic disorder associated with immune dysregulation and chronic inflammation of the digestive tract. While it is poorly understood, the role of nutrition and nutrient status in the etiology of IBD and its associated outcomes has led to increased research relating to micronutrient deficiency. This review offers an overview of recent literature related to micronutrient absorption and outcomes in adults with IBD. Although the absorption and IBD-related outcomes of some micronutrients (e.g., vitamin D and iron) are well understood, other micronutrients (e.g., vitamin A) require further research. Increased research and clinician knowledge of the relationship between micronutrients and IBD may manifest in improved nutrient screening, monitoring, treatment, and outcomes for people living with IBD.

scholarly journals Representative Democracy and Social Equality

2021 ◽  
pp. 1-13
Author(s):  
SEAN INGHAM
Keyword(s):  
Social Status ◽  
Recent Literature ◽  
Political Power ◽  
Representative Democracy ◽  
Public Officials ◽  
Social Equality ◽  
Arbitrary Power ◽  
The Relationship ◽  
The Ideal

When are inequalities in political power undemocratic, and why? While some writers condemn any inequalities in political power as a deviation from the ideal of democracy, this view is vulnerable to the simple objection that representative democracies concentrate political power in the hands of elected officials rather than distributing it equally among citizens, but they are no less democratic for it. Building on recent literature that interprets democracy as part of a broader vision of social equality, I argue that concentrations of political power are incompatible with democracy, and with a commitment to social equality more generally, when they consist in some having greater arbitrary power to influence decisions according to their idiosyncratic preferences. A novel account of the relationship between power and social status clarifies the role of social equality in the justification of democracy, including a representative democracy in which public officials have more political power than ordinary citizens.

scholarly journals Exploring The Role Of Phronesis In Social Innovation: A Case Study Of Dr. Ruth Pfau

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Ansar Waseem ◽  
Yasir Rashid
Keyword(s):  
Data Analysis ◽  
Social Innovation ◽  
Recent Literature ◽  
Practical Wisdom ◽  
Social Needs ◽  
Social Entrepreneur ◽  
Value Judgment ◽  
The Relationship

Although recent literature on social innovation proclaims its virtue in addressing unmet social needs. Yet little is known about the relationship between phronesis and social innovation. This paper aims to explore how a social entrepreneur uses phronesis in addressing a social problem. Taking case study as qualitative research inquiry, this paper uses the interviews and life account of Dr. Ruth Pfau (Late) on how she incorporated her phronesis in treating patients suffering from leprosy. The empirical evidences collected were analyzed using GIOIA data analysis. The results of the data analysis show that a social entrepreneur employs his/her practical wisdom, experiential knowledge, and value judgment in combating a social issue, and in doing so, uses phronesis in addressing a social problems and creating social innovation.

scholarly journals Creativity, Collaboration and Development in Jeremy Thurlow's Ouija for Peter Sheppard Skærved

2016 ◽  
Vol 141 (1) ◽  
pp. 113-165 ◽  
Author(s):  
Eric Clarke ◽  
Mark Doffman ◽  
Renee Timmers
Keyword(s):  
Creative Process ◽  
Recent Literature ◽  
Verbal Interaction ◽  
Creative Collaboration ◽  
Laptop Computer ◽  
Collaborative Creativity ◽  
Solo Violin ◽  
Social Components ◽  
The Relationship

ABSTRACTThis article documents and analyses a creative collaboration between the composer Jeremy Thurlow and the violinist Peter Sheppard Skærved in the production of Ouija, a work for solo violin and laptop computer. The article situates the account of this creative process within recent literature on distributed and collaborative creativity, and focuses on three aspects of the project: verbal interaction between the two musicians, analysed in terms of ‘creative-talk’ and ‘face-talk’, and the relationship between immediate and more contextual concerns (‘inside/outside the room’); a quantitative analysis of changes in the musical material, focusing on timing; and a qualitative analysis of the role of the violinist's embodied and instrumental engagement with the music. The article discusses the findings in relation to forwards-orientated (process) and backwards-orientated (product) conceptions of creativity, the operation of different social components in creative collaboration and the relationship between craft, history and embodiment.

scholarly journals The role of behavioural flexibility in a whole of ecosystem model

2012 ◽  
Vol 70 (1) ◽  
pp. 150-163 ◽  
Author(s):  
Ingrid E. van Putten ◽  
Rebecca J. Gorton ◽  
Elizabeth A. Fulton ◽  
Olivier Thebaud
Keyword(s):  
Predictive Accuracy ◽  
Location Choice ◽  
Ecosystem Model ◽  
Behavioural Flexibility ◽  
Feedback Systems ◽  
Ecosystem Models ◽  
Physical Information ◽  
Income Variability ◽  
The Relationship

Abstract van Putten, I. E., Gorton, R. J., Fulton, E. A., and Thebaud, O. 2013. The role of behavioural flexibility in a whole of ecosystem model. – ICES Journal of Marine Science, 70:150–163. The predictive accuracy of complex fisheries models developed to anticipate the effects of changing fishery regulations appears to depend on a solid understanding of the processes and feedback systems linking biological and physical information to resource user. Many fisher decisions are modelled in the human component of the models, including inertia, or location choice flexibility. We unpack a whole of ecosystem system model and explore how location choice flexibility in fleet behaviour (sticking to the same seasonal and spatial distribution of fishing) affects outcomes such as catches and income levels and variability. Our analysis shows that the interpretation is not straightforward, and the relationship between behavioural flexibility and income level and income variability has to be considered in the context of three main fleet characteristics: profitability; how diversified the fleet is; and growing or declining target species biomass. We contend that making behavioural flexibility sensitive to the health of the stock and fleet profitability could potentially improve accuracy of large whole of ecosystem models such as Atlantis.

Ecclesiology and Ethnography: An Unresolved Relationship

Ecclesiology ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 322-337
Author(s):  
Paul Avis
Keyword(s):  
Recent Literature ◽  
Vital Role ◽  
Critical Exploration ◽  
The Relationship ◽  
The Church

This article undertakes a critical exploration of the current relationship between ecclesiology and ‘ecclesial ethnography’. It begins by proposing that ecclesiology should be a realistic, critical and practical discipline and that in these respects it can learn from ethnographical principles. It goes on to raise some questions about how the relationship between ecclesial ethnography and ecclesiology is presented in some recent literature, pointing out instances of over-drawn distinctions, exaggerated claims and methodological naivety. It concludes by affirming the vital role of ethnographical study to the overall theological investigation of the church and suggests that this would be strengthened if the weaknesses mentioned above were addressed.

scholarly journals Exploring The Role Of Phronesis In Social Innovation: A Case Study Of Dr. Ruth Pfau

2019 ◽  
Vol 9 (1) ◽  
pp. 1-18
Author(s):  
Ansar Waseem ◽  
Yasir Rashid
Keyword(s):  
Data Analysis ◽  
Social Innovation ◽  
Recent Literature ◽  
Practical Wisdom ◽  
Social Needs ◽  
Social Entrepreneur ◽  
Value Judgment ◽  
The Relationship

Although recent literature on social innovation proclaims its virtue in addressing unmet social needs. Yet little is known about the relationship between phronesis and social innovation. This paper aims to explore how a social entrepreneur uses phronesis in addressing a social problem. Taking case study as qualitative research inquiry, this paper uses the interviews and life account of Dr. Ruth Pfau (Late) on how she incorporated her phronesis in treating patients suffering from leprosy. The empirical evidences collected were analyzed using GIOIA data analysis. The results of the data analysis show that a social entrepreneur employs his/her practical wisdom, experiential knowledge, and value judgment in combating a social issue, and in doing so, uses phronesis in addressing a social problems and creating social innovation.

Choosing a Markov blanket

2020 ◽  
Vol 43 ◽  
Author(s):  
Thomas Parr
Keyword(s):  
Markov Blanket ◽  
Target Article ◽  
The Relationship

Abstract This commentary focuses upon the relationship between two themes in the target article: the ways in which a Markov blanket may be defined and the role of precision and salience in mediating the interactions between what is internal and external to a system. These each rest upon the different perspectives we might take while “choosing” a Markov blanket.

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