Dynamical Processes in Time-Varying Networks

2019 ◽  
pp. 66-89
Author(s):  
Bruno Gonçalves ◽  
Nicola Perra
Keyword(s):  
Mean Field ◽  
Future Research ◽  
Time Varying ◽  
Dynamical Processes ◽  
Time Resolved ◽  
Rumor Spreading ◽  
Temporal Correlations ◽  
Recent Developments ◽  
Time Varying Networks ◽  
Future Research Directions

Networks in almost any domain are dynamical entities. New nodes join the system, others leave it, and links describing their interactions are constantly changing. However, due to the absence of time-resolved data and mathematical challenges, the large majority of research in network science neglects these features in favor of static or mean-field representations. While such approximations are useful and appropriate in some systems and processes, they fail in many others where the co-occurrence, duration, and order of contacts are crucial ingredients. This chapter presents a review of recent developments in the study of temporal networks and dynamical processes unfolding on their fabrics. It focuses in particular on activity-driven networks as an empirically motivated and analytically tractable class of models of the time-varying network. Within this framework the chapter studies the effects of temporal connectivity patterns in random walks, the epidemic model, and the rumor spreading model. The results highlight the striking impact that temporal correlations have on dynamical processes taking place over time-varying networks. The chapter ends by considering future research directions and challenges in this important area.

Frontiers in Service Science: Fintech Operations—An Overview of Recent Developments and Future Research Directions

2021 ◽  
Vol 13 (1) ◽  
pp. 19-35
Author(s):  
Baile Lu ◽  
Shuai Hao ◽  
Michael Pinedo ◽  
Yuqian Xu
Keyword(s):  
Future Research ◽  
Algorithmic Trading ◽  
Payment Systems ◽  
Research Directions ◽  
Operational Risks ◽  
Technology Industry ◽  
Recent Developments ◽  
Future Research Directions ◽  
Conclusion Section ◽  
Financial Technology

In this paper, we provide a survey of recent developments in the fintech (financial technology) industry, focusing on the operational structures, the technologies involved, and the operational risks associated with the new systems. In particular, we discuss payment systems, algorithmic trading, robo-advisory, crowdfunding, and peer-to-peer lending. In the conclusion section, we discuss various promising research directions.

Nonlinear Vibrations of Plates: An Update of Recent Research Developments

1996 ◽  
Vol 49 (10S) ◽  
pp. S55-S62 ◽  
Author(s):  
M. Sathyamoorthy
Keyword(s):  
Nonlinear Vibrations ◽  
Laminated Composite ◽  
Composite Plates ◽  
Future Research ◽  
Research Directions ◽  
Inertia Effects ◽  
Vibration Behavior ◽  
Recent Developments ◽  
Complicating Factors ◽  
Future Research Directions

This paper comprises a survey on the nonlinear vibration analysis of plates, with emphasis on research carried out since 1987. Most of the research reviewed here deals with the effects of geometric nonlinearity on the vibration behavior of plates. Complicating factors such as material nonlinearity, geometric imperfections, transverse shear and rotatory inertia effects, and magnetic fields on the vibration behavior are included. Recent developments in the analytical and numerical methods of solution of isotropic, orthotropic as well as laminated, composite plates are presented. Experimental, analytical, and numerical investigations are included for all the cases reviewed and some general remarks are presented along with suggestions for future research directions.

A Cross-Cultural Review of Workplace Deviance Research

2020 ◽  
pp. 23-46
Author(s):  
Selcen Kılıçaslan Gökoğlu ◽  
Engin Bağış Öztürk
Keyword(s):  
Cultural Differences ◽  
Cross Cultural ◽  
Workplace Deviance ◽  
Future Research ◽  
Moderator Variable ◽  
Negative Behaviors ◽  
Deviant Behaviors ◽  
Cross Cultural Differences ◽  
Recent Developments ◽  
Future Research Directions

In the last two decades, workplace deviance becomes one of the most important topics to understand negative behaviors at work. However, many of the studies that examine deviance take a universal perspective and undermine cross-cultural differences. To address this gap, this chapter focuses on cross-cultural differences and its relationship with deviant workplace behaviors. The authors claim that cross-cultural differences can play an important role as an antecedent and/or moderator variable in influencing deviant behaviors. In order to discuss these effects, they first summarize recent developments in individualism-collectivism, tightness-looseness, and honor cultures. Based on their interpretations, target-oriented deviance might be highly contextualized in collectivist cultures, form of deviance and contents of deviance could be different from honor to dignity cultures. In addition, deviant behaviors as responses to specific events might differ whether a person belongs in a tight culture or not. The implications of our arguments and future research directions are discussed.

scholarly journals Application of multiphoton microscopy in dermatological studies: A mini-review

2014 ◽  
Vol 07 (05) ◽  
pp. 1330010 ◽  
Author(s):  
Elijah Yew ◽  
Christopher Rowlands ◽  
Peter T. C. So
Keyword(s):  
Near Infrared ◽  
Second Harmonic ◽  
Multiphoton Microscopy ◽  
Infrared Light ◽  
Future Research ◽  
Two Photon ◽  
Recent Developments ◽  
Future Research Directions ◽  
Microscopy Techniques ◽  
Penetration Depths

This review summarizes the historical and more recent developments of multiphoton microscopy, as applied to dermatology. Multiphoton microscopy offers several advantages over competing microscopy techniques: there is an inherent axial sectioning, penetration depths that compete well with confocal microscopy on account of the use of near-infrared light, and many two-photon contrast mechanisms, such as second-harmonic generation, have no analogue in one-photon microscopy. While the penetration depths of photons into tissue are typically limited on the order of hundreds of microns, this is of less concern in dermatology, as the skin is thin and readily accessible. As a result, multiphoton microscopy in dermatology has generated a great deal of interest, much of which is summarized here. The review covers the interaction of light and tissue, as well as the various considerations that must be made when designing an instrument. The state of multiphoton microscopy in imaging skin cancer and various other diseases is also discussed, along with the investigation of aging and regeneration phenomena, and finally, the use of multiphoton microscopy to analyze the transdermal transport of drugs, cosmetics and other agents is summarized. The review concludes with a look at potential future research directions, especially those that are necessary to push these techniques into widespread clinical acceptance.

An update on the association of vitamin D deficiency with common infectious diseases

2015 ◽  
Vol 93 (5) ◽  
pp. 363-368 ◽  
Author(s):  
Richard R. Watkins ◽  
Tracy L. Lemonovich ◽  
Robert A. Salata
Keyword(s):  
Vitamin D ◽  
Infectious Diseases ◽  
Vitamin D Deficiency ◽  
Health Care Facilities ◽  
Future Research ◽  
Therapeutic Implications ◽  
Increased Risk ◽  
Immunodeficiency Virus ◽  
Recent Developments ◽  
Future Research Directions

Vitamin D plays an important role in modulating the immune response to infections. Deficiency of vitamin D is a common condition, affecting both the general population and patients in health care facilities. Over the last decade, an increasing body of evidence has shown an association between vitamin D deficiency and an increased risk for acquiring several infectious diseases, as well as poorer outcomes in vitamin D deficient patients with infections. This review details recent developments in understanding the role of vitamin D in immunity, the antibacterial actions of vitamin D, the association between vitamin D deficiency and common infections (like sepsis, pneumonia, influenza, methicillin-resistant Staphylococcus aureus, human immunodeficiency virus type-1 (HIV), and hepatitis C virus (HCV)), potential therapeutic implications for vitamin D replacement, and future research directions.

scholarly journals Review on Learning and Extracting Graph Features for Link Prediction

2020 ◽  
Vol 2 (4) ◽  
pp. 672-704
Author(s):  
Ece C. Mutlu ◽  
Toktam Oghaz ◽  
Amirarsalan Rajabi ◽  
Ivan Garibay
Keyword(s):  
Biological Networks ◽  
Link Prediction ◽  
Telecommunication Networks ◽  
Probabilistic Methods ◽  
Future Research ◽  
Data Sets ◽  
Relational Models ◽  
Research Directions ◽  
Recent Developments ◽  
Future Research Directions

Link prediction in complex networks has attracted considerable attention from interdisciplinary research communities, due to its ubiquitous applications in biological networks, social networks, transportation networks, telecommunication networks, and, recently, knowledge graphs. Numerous studies utilized link prediction approaches in order sto find missing links or predict the likelihood of future links as well as employed for reconstruction networks, recommender systems, privacy control, etc. This work presents an extensive review of state-of-art methods and algorithms proposed on this subject and categorizes them into four main categories: similarity-based methods, probabilistic methods, relational models, and learning-based methods. Additionally, a collection of network data sets has been presented in this paper, which can be used in order to study link prediction. We conclude this study with a discussion of recent developments and future research directions.

Admission Control and Scheduling for QoS Provisioning in WiMAX Networks

2010 ◽  
pp. 183-202
Author(s):  
Juliana Freitag Borin ◽  
Nelson L.S. da Fonseca
Keyword(s):  
Admission Control ◽  
Traffic Control ◽  
Ieee 802.16 ◽  
Future Research ◽  
Control Mechanisms ◽  
Wimax Networks ◽  
Recent Developments ◽  
Comprehensive Survey ◽  
Future Research Directions

Although the IEEE 802.16 standard, popularly known as WiMAX, defines the framework to support real-time and bandwidth demanding applications, traffic control mechanisms, such as admission control and scheduling mechanisms, are left to be defined by proprietary solutions. In line with that, both industry and academia have been working on novel and efficient mechanisms for Quality of Service provisioning in 802.16 networks. This chapter provides the background necessary to understand the scheduling and the admission control problems in IEEE 802.16 networks. Moreover, it gives a comprehensive survey on recent developments on algorithms for these mechanisms as well as future research directions.

The concept of organisational projectification: past, present and beyond?

2019 ◽  
Vol 12 (3) ◽  
pp. 565-577 ◽  
Author(s):  
Harvey Maylor ◽  
Virpi Turkulainen
Keyword(s):  
Future Research ◽  
Discussion Paper ◽  
Research Directions ◽  
Policy Makers ◽  
Content Type ◽  
Recent Developments ◽  
Organisational Process ◽  
Future Research Directions ◽  
Published Research ◽  
Practical Implications

Purpose The purpose of this paper is to reflect on the past 25 years of the research on projectification, focusing especially on organisational aspects of projectification, as well as to discuss recent developments and potential future research directions. Design/methodology/approach This is a discussion paper, which draws on previously published research and data. Findings The first section identifies contexts in which projectification has taken place (projectification of) and the organisational process by which this has taken place (projectification through). Using an illustrative example based on publicly available data, the second section shows an extension of the organisational phenomenon, referred to as advanced organisational projectification. The paper concludes with a synthesised framework of organisational projectification. Research limitations/implications The paper provides a personal reflection and commentary and is focused on the conceptualisation of the term rather than an all-encompassing study of projectification. Based on the discussion, the paper presents a synthesised view of organisational projectification as well as directions for future research to advance the understanding of projectification. Practical implications The study has implications for policy-makers in the design of the process of ongoing projectification and provides illustrations and a warning concerning the assumptions that are made as an organisation advances in its projectification. Originality/value This paper provides an elaboration of one of the focal concepts of project studies, extending some of the key elements of project management research.

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