The Architecture of Policing: Towards a New Theoretical Model of the Role of Constraint-Based Compliance in Policing

2017 ◽  
pp. 169-190
Author(s):  
Richard Jones
Keyword(s):  
Theoretical Model

Transition Times in Memory

2018 ◽  
Author(s):  
Donatella della Porta ◽  
Massimiliano Andretta ◽  
Tiago Fernandes ◽  
Eduardo Romanos ◽  
Markos Vogiatzoglou
Keyword(s):  
Theoretical Model ◽  
Social Movement ◽  
Transition Period ◽  
Two Dimensions ◽  
Democratic Regime ◽  
Organizational Models ◽  
Different Types ◽  
Transition Times ◽  
Movement Participation

The second chapter covers the main characteristics of transition time in the four countries: Italy, Greece, Spain, and Portugal. After developing the theoretical model on paths of transition, with a focus on social movement participation, the chapter looks at social movements and protest events as turning points during transition, covering in particular the specific movement actors, their organizational models, and their repertoires of action and frames. The chapter focuses on two dimensions: the role of mobilization in the transition period, which implies the analysis of how elites and masses interact, ally, or fight with each other in the process, and the outcome of transitions as continuity versus rupture of the democratic regime vis-à-vis the old one. It concludes by elaborating some hypotheses on how different modes of transition may produce different types and uses of (transition) memories.

scholarly journals Triggering avalanches by transverse perturbations in a rotating drum

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Vicente Salinas ◽  
Cristóbal Quiñinao ◽  
Sebastián González ◽  
Gustavo Castillo
Keyword(s):  
Hopf Bifurcation ◽  
Theoretical Model ◽  
Order Parameter ◽  
Small Scale ◽  
Rotating Drum ◽  
Governing Parameter ◽  
Stick Slip ◽  
Slip Regime ◽  
Axis Of Rotation

AbstractWe study the role of small-scale perturbations in the onset of avalanches in a rotating drum in the stick-slip regime. By vibrating the system along the axis of rotation with an amplitude orders of magnitude smaller than the particles’ diameter, we found that the order parameter that properly describes the system is the kinetic energy. We also show that, for high enough frequencies, the onset of the avalanche is determined by the amplitude of the oscillation, contrary to previous studies that showed that either acceleration or velocity was the governing parameter. Finally, we present a theoretical model that explains the transition between the continuous and discrete avalanche regimes as a supercritical Hopf bifurcation.

The Internationalization of Family Firms

2013 ◽  
Vol 27 (2) ◽  
pp. 103-125 ◽  
Author(s):  
Thilo J. Pukall ◽  
Andrea Calabrò
Keyword(s):  
Theoretical Model ◽  
Family Firms ◽  
Future Research ◽  
Risk Attitudes ◽  
Journal Articles ◽  
Suggested Model ◽  
Socioemotional Wealth ◽  
Uppsala Model ◽  
Research Themes

This article systematically reviews and critically examines 72 journal articles published (from 1980 to 2012) on the internationalization of family firms. Stemming from existing literature, core aspects and main gaps are identified. We aim to overcome the inconclusiveness of findings of previous research by offering an integrative theoretical model integrating the concept of socioemotional wealth with the revised Uppsala model. Our framework helps understand behaviors of internationalizing family firms by focusing on when and how they internationalize, especially related to risk attitudes, the role of knowledge and networks. Ultimately, we provide future research themes flowing from our suggested model.

Gli standard privati di sicurezza alimentare: un modello di teoria dei contratti per l'analisi degli aspetti organizzativi e promozionali

2012 ◽  
pp. 85-105
Author(s):  
Antonella Di Fonzo ◽  
Maria Angela Perito ◽  
Carlo Russo
Keyword(s):  
Theoretical Model ◽  
Food Safety ◽  
Product Differentiation ◽  
Diversification Strategy ◽  
Private Standards ◽  
Food Distributors ◽  
Definition Of ◽  
Large Distribution ◽  
Current Behavior

In recent years, large food distributors poured considerable effort in the definition of private standards of food safety for their products. Despite these efforts, medium and large retailers have yet to begin advertising to their consumers the adoption of such standards and, in doing so, do not actively pursue a diversification strategy for their products. This behavior seems paradoxical as large retailers would benefit from product differentiation. This article focuses on the role of standards in the coordination of the supply channels and proposes a theoretical model that gives an economic motivation to the current behavior of large retailers. The first objective of this study is to demonstrate how the adoption of standards is a rational choice for large retailers, even in the case in which consumers are not willing to pay for food safety. The reason is that standards can also be used to solve information asymmetry problems and organize the supply chain. Secondly, the theoretical model of contracts suggests that, investments related to the promotion of standards to the consumers, might, under certain conditions, undermine the profits of the large distribution.

scholarly journals Role of KCa3.1 Channels in Modulating Ca2+ Oscillations during Glioblastoma Cell Migration and Invasion

2018 ◽  
Vol 19 (10) ◽  
pp. 2970 ◽  
Author(s):  
Luigi Catacuzzeno ◽  
Fabio Franciolini
Keyword(s):  
Cell Migration ◽  
Theoretical Model ◽  
Migration And Invasion ◽  
Channel Activity ◽  
Cell Migration And Invasion ◽  
Channel Modulation ◽  
Invasion Mechanisms ◽  
Migratory Cycle ◽  
Channel Dependent

Cell migration and invasion in glioblastoma (GBM), the most lethal form of primary brain tumors, are critically dependent on Ca2+ signaling. Increases of [Ca2+]i in GBM cells often result from Ca2+ release from the endoplasmic reticulum (ER), promoted by a variety of agents present in the tumor microenvironment and able to activate the phospholipase C/inositol 1,4,5-trisphosphate PLC/IP3 pathway. The Ca2+ signaling is further strengthened by the Ca2+ influx from the extracellular space through Ca2+ release-activated Ca2+ (CRAC) currents sustained by Orai/STIM channels, meant to replenish the partially depleted ER. Notably, the elevated cytosolic [Ca2+]i activates the intermediate conductance Ca2+-activated K (KCa3.1) channels highly expressed in the plasma membrane of GBM cells, and the resulting K+ efflux hyperpolarizes the cell membrane. This translates to an enhancement of Ca2+ entry through Orai/STIM channels as a result of the increased electromotive (driving) force on Ca2+ influx, ending with the establishment of a recurrent cycle reinforcing the Ca2+ signal. Ca2+ signaling in migrating GBM cells often emerges in the form of intracellular Ca2+ oscillations, instrumental to promote key processes in the migratory cycle. This has suggested that KCa3.1 channels may promote GBM cell migration by inducing or modulating the shape of Ca2+ oscillations. In accordance, we recently built a theoretical model of Ca2+ oscillations incorporating the KCa3.1 channel-dependent dynamics of the membrane potential, and found that the KCa3.1 channel activity could significantly affect the IP3 driven Ca2+ oscillations. Here we review our new theoretical model of Ca2+ oscillations in GBM, upgraded in the light of better knowledge of the KCa3.1 channel kinetics and Ca2+ sensitivity, the dynamics of the Orai/STIM channel modulation, the migration and invasion mechanisms of GBM cells, and their regulation by Ca2+ signals.

THEORETICAL DEFINITIONS FOR AUXILIARY CONCEPTS OF VARIOUS LEVELS OF ABSTRACTION

2020 ◽  
pp. 28-31
Author(s):  
Valentin Karpovich
Keyword(s):  
Theoretical Model ◽  
Subject Area ◽  
Theoretical Concept ◽  
Theoretical Knowledge ◽  
Practical Application ◽  
Levels Of Abstraction ◽  
Theoretical Concepts ◽  
The Subject ◽  
Logical Constraints

Theoretical knowledge may contain various levels of abstraction represented by logical constructions from the observed characteristics of objects from the subject area of the theory. The degree of abstractness can be de-scribed by the complexity of the structures obtained from the initial observational terms. Such auxiliary construc-tions are characterized as explicit or implicitdefinitions of theoretical concepts in terms of observational. One of the techniques for constructing such definitions is the operationalization of abstractions by a system of reduction sentences. In this case a theoretical concept is characterized as “open” and plays a role of logical and methodo-logical constraints for expanding the possible connections of the theoretical model with the help of concepts from the domain of intended practical application.

How does information integration enhance SMEs’ credit quality: the mediating role of supply chain capabilities

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yaqin Yuan ◽  
Linlin Liu ◽  
Liu Liu
Keyword(s):  
Information Technology ◽  
Supply Chain ◽  
Theoretical Model ◽  
Information Sharing ◽  
Information Integration ◽  
Theoretical Research ◽  
Equation Modeling ◽  
Content Type ◽  
Credit Quality

PurposeThis paper aims to investigate the relationship between information integration, supply chain capabilities and credit quality of small and middle enterprises (SMEs) in supply chain finance (SCF).Design/methodology/approachGrounded in the resource-based view (RBV) and signaling theory, this study proposes a theoretical model. Then, structural equation modeling and interview analysis are employed to test the theoretical model.FindingsThe results show that both two aspects of information integration, namely, information technology and information sharing, have positive effects on the SMEs’ credit quality in SCF, and these effects are mediated by supply chain capabilities.Originality/valueFirst, the paper contributes to SCF literature by simultaneously examining the role of two dimensions of information integration (information technology and information sharing) in enhancing SMEs’ credit quality. Second, this paper enriches the existing theoretical research on SCF by integrating the SMEs perspective and SCF service provider perspective. Moreover, this paper explores the indirect effects of information integration on SMEs’ credit quality by incorporating supply chain capabilities as a mediating factor.

The Role of Website Features in Creating Loyalty

2014 ◽  
pp. 780-794
Author(s):  
Anil Bilgihan ◽  
Anupama Sukhu ◽  
Jay Kandampully
Keyword(s):  
Theoretical Model ◽  
Structural Equation Model ◽  
Important Implication ◽  
Structural Equation ◽  
Online Survey ◽  
Equation Model ◽  
Consumer Loyalty ◽  
Web Based ◽  
Website Features

This study integrates shopping value dimensions and consumers' commitment to a theoretical model to understand consumer loyalty to e-shopping. E-commerce is established as an efficient sales platform for travel and hospitality vendors. However, extant literature found that it is difficult to attract new customers and retain existing customers in e-commerce. This paper investigates the antecedents of customer loyalty in e-commerce. An online survey with (n=520) was conducted with randomly selected US consumers. A structural equation model reveals that hedonic and utilitarian shopping values determine affective and calculative commitment of e-shoppers which in turn influence consumers' loyalty towards e-shopping. This study contributes to the present literature and provides important implication towards e-tailers and website developers. It is important to fulfill e-shoppers' hedonic and utilitarian needs to gain e-loyalty. Web based hospitality service offerings should provide a convenient and pleasing online environment to gain consumer e-loyalty.

Avoiding Adverse Consequences From Digital Addiction and Retaliatory Feedback

2019 ◽  
pp. 701-716
Author(s):  
Ashu M. G. Solo ◽  
Jonathan Bishop
Keyword(s):  
Theoretical Model ◽  
Digital Technologies ◽  
Transitional Flow ◽  
The Internet ◽  
Digital Addiction ◽  
The Relationship

This chapter looks at the role of the participation continuum in helping to improve relationships that have been damaged as a result of digital addiction. Digital addiction in this context refers to what happens when a person with a compulsion who is not getting that compulsion fulfilled turns to the Internet and other digital technologies in order to fill the void. The chapter is a case study of two people called Person D and Person G in order to make them anonymous. Using medical and other records, it was found that a number of different interventions using the participation continuum could have resulted in changes in the relationship in either holding it together or preventing one party from posting malicious and defamatory comments. The chapter found that a theoretical model, with algorithmic principles applied, called the transitional flow of persuasion model would be able to understand the impacts of digital addiction and provide a means to remedy it.

Motivating Antecedents and Consequences of Blockchain Technology in the Insurance Industry

2021 ◽  
pp. 276-285
Author(s):  
Sumit Oberoi ◽  
Pooja Kansra
Keyword(s):  
Theoretical Model ◽  
Business Models ◽  
Insurance Industry ◽  
Integrated Approach ◽  
Fundamental Characteristic ◽  
Technological Revolution ◽  
Blockchain Technology ◽  
Prior Literature ◽  
Antecedents And Consequences

Quantum leaps in technology affect all phases of business models over numerous industries and are the fundamental characteristic of any technological revolution. Emerging technologies provide new avenues for industries to increase their competitive advantage and enhance the economic progression. The aim of this study is to advance a theoretical model on motivating antecedents and consequences of blockchain technology in insurance industry based on the evidence from past literature. This chapter is approached from the theoretical viewpoint, so it meticulously assesses and examines the prior literature to debate on the role of blockchain technology in the insurance industry. The outcome of the present study is dispassionate and corresponding to the conclusions of the prior literature. Blockchain helps in achieving innovation, augmenting transparency, refining data standards, and advancing an integrated approach for quality service. Thus, the espousal of blockchain in insurance is developing very quickly, and it has become the default platform for the complete insurance industry.

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