You are currently on the new version of our website. Access the old version .

30,487 Results Found

  • Article
  • Open Access
26 Citations
4,067 Views
22 Pages

Spatiotemporal Graph Indicators for Air Traffic Complexity Analysis

  • Ralvi Isufaj,
  • Thimjo Koca and
  • Miquel Angel Piera

25 November 2021

There has been extensive research in formalising air traffic complexity, but existing works focus mainly on a metric to tie down the peak air traffic controllers workload rather than a dynamic approach to complexity that could guide both strategical,...

  • Article
  • Open Access
5 Citations
2,082 Views
18 Pages

Defining Terminal Airspace Air Traffic Complexity Indicators Based on Air Traffic Controller Tasks

  • Tea Jurinić,
  • Biljana Juričić,
  • Bruno Antulov-Fantulin and
  • Kristina Samardžić

This paper focuses on terminal air traffic complexity indicators. By thorough analysis of previous research, the benefits and limitations of the existing terminal complexity models are identified. According to these findings, a new approach for deter...

  • Article
  • Open Access
897 Views
18 Pages

Green Trade, Economic Complexity and Green Indicators: Evidence in Asia Countries with PPML Fixed Effects Model

  • Indraswati Tri Abdi Reviane,
  • Abdul Hamid Paddu,
  • Nur Dwiana Sari Saudi,
  • Hefrizal Handra and
  • Aditya Idris

4 November 2025

This study investigates the relationship between green trade, economic complexity, and green indicators in Asian countries using a Poisson Pseudo Maximum Likelihood (PPML) fixed effects model. This study uses panel data from 33 countries in the Asia...

  • Article
  • Open Access
13 Citations
2,928 Views
16 Pages

A Complex Circular-Economy Quality Indicator for Assessing Production Systems at the Micro Level

  • Zygmunt Kowalski,
  • Joanna Kulczycka,
  • Marcin Banach and
  • Agnieszka Makara

8 September 2023

Measuring circular-economy progress requires indicators to examine the implementation of management systems. A complex quality indicator for assessing production systems at the circular-economy micro level was proposed. One innovative aspect of this...

  • Concept Paper
  • Open Access
8 Citations
4,702 Views
6 Pages

13 January 2020

Many teams have developed a wide range of numerical or categorical indicators of progress in the implementation of the SDG targets. But these indicators cannot identify why target goals have not been accomplished, whether or how they do or do not do...

  • Article
  • Open Access
12 Citations
4,878 Views
17 Pages

25 March 2019

Detailed knowledge of the complex refractive indices (m) of fine- and coarse-mode aerosols is important for enhancing understanding of the effect of atmospheric aerosol on climate. However, studies on obtaining aerosol modal m values are particularly...

  • Article
  • Open Access
3 Citations
1,693 Views
16 Pages

26 October 2024

Niobocene hydride–silyl complexes exhibit intriguing structural characteristics with the potential for direct hydride/silyl exchange, where hydride migration plays a crucial role during conformational interconversion. In this study, quantum che...

  • Article
  • Open Access
1,037 Views
18 Pages

This study investigates eye movement patterns as indicators of text complexity in Arabic, focusing on the comparative analysis of Classical Arabic (CA) and Modern Standard Arabic (MSA) text. Using the AraEyebility corpus, which contains eye-tracking...

  • Article
  • Open Access
1 Citations
2,125 Views
13 Pages

26 January 2023

It is controversial whether sarcasm processing should go through literal meaning processing. There is also a lack of eye movement evidence for Chinese sarcasm processing. In this study, we used eye movement experiments to explore the processing diffe...

  • Article
  • Open Access
1 Citations
2,692 Views
18 Pages

15 December 2021

This study is about a method for evaluating specific product complexity. In this context, an efficient and scalable method for the development of a specific complexity assessment of highly complex products is presented. Furthermore, existing evaluati...

  • Article
  • Open Access
677 Views
26 Pages

27 October 2025

Despite the growing importance of rural development, research on place marketing remains fragmented, with no comprehensive systematic literature review (SLR) addressing this field with such focus and detail. The study aims to systematically map scien...

  • Article
  • Open Access
6 Citations
2,325 Views
27 Pages

From Single Aircraft to Communities: A Neutral Interpretation of Air Traffic Complexity Dynamics

  • Ralvi Isufaj,
  • Marsel Omeri,
  • Miquel Angel Piera,
  • Jaume Saez Valls and
  • Christian Eduardo Verdonk Gallego

17 October 2022

At present, decision-making in ATM is fragmented between different stakeholders who have different objectives. This fragmentation, in unison with competing KPAs, leads to complex interdependencies between performance indicators, which results in an i...

  • Article
  • Open Access
2 Citations
1,764 Views
20 Pages

30 August 2024

The assessment of streamflow patterns and their complexity variations across multiple timescales within river basins is a crucial aspect of water resource management and policy formulation. In this study, the Hurst coefficient, Mann–Kendall non...

  • Article
  • Open Access
35 Citations
11,357 Views
23 Pages

The Complexity of Food Systems: Defining Relevant Attributes and Indicators for the Evaluation of Food Supply Chains in Spain

  • Gonzalo Gamboa,
  • Zora Kovacic,
  • Marina Di Masso,
  • Sara Mingorría,
  • Tiziano Gomiero,
  • Marta Rivera-Ferré and
  • Mario Giampietro

The wide-ranging literature on food systems provides multiple perspectives and world views. Various stakeholders define food and food systems in non-equivalent ways. The perception of the performance of food systems is determined by these specific pe...

  • Article
  • Open Access
23 Citations
3,322 Views
15 Pages

Complexity Assessment of Assembly Supply Chains from the Sustainability Viewpoint

  • Vladimir Modrak,
  • Zuzana Soltysova and
  • Daniela Onofrejova

13 December 2019

Assembly supply chain systems are becoming increasingly complex and, as a result, there is more and more need to design and manage them in a way that benefits the producers and also satisfies the interests of community stakeholders. The structural (s...

  • Article
  • Open Access
15 Citations
2,996 Views
16 Pages

Some Critical Reflections on the Measurement of Social Sustainability and Well-Being in Complex Societies

  • Alberto Arcagni,
  • Marco Fattore,
  • Filomena Maggino and
  • Giorgio Vittadini

16 November 2021

The aim of this discussion paper is to raise awareness of the conceptual and practical limits of mainstream practices in social measurement and to suggest possible directions for social indicator construction, in view of effectively supporting polici...

  • Article
  • Open Access
5 Citations
2,441 Views
9 Pages

Influence of Health Related Fitness on the Morphofunctional Condition of Second Mature Aged Women

  • Olha Podrihalo,
  • Svetlana Savina,
  • Leonid Podrigalo,
  • Sergii Iermakov,
  • Władysław Jagiełło,
  • Łukasz Rydzik and
  • Wiesław Błach

To analyze the influence of health-related fitness on the condition of second mature aged women. Participants: 65 women divided into two groups. Group 1–40 women, (43.33 ± 0.93) years old and group 2–25 women (44.40 ± 0.93)...

  • Article
  • Open Access
9 Citations
2,693 Views
23 Pages

3 May 2022

The COVID-19 pandemic caused important health and societal damage across the world in 2020–2022. Its study represents a tremendous challenge for the scientific community. The correct evaluation and analysis of the situation can lead to the elab...

  • Article
  • Open Access
1 Citations
3,761 Views
15 Pages

Mapping Coastal Dynamics Induced Land Use Change in Sandwip Island, Bangladesh

  • Philip Kibet Langat,
  • Manoj Kumer Ghosh,
  • Chandan Roy,
  • Puspita Talukdar,
  • Richard Koech and
  • Arjun Neupane

16 December 2024

Evaluating satellite water extraction indices, particularly for coastal environments, guarantees that satellite-derived water maps are as accurate and functional as possible, notwithstanding the unique complexities these areas present. Variability in...

  • Article
  • Open Access
6 Citations
3,232 Views
23 Pages

4 June 2022

Complex urban systems, such as multi-floor rail transit stations and integrated railway transport hubs, are termed “complex urban public spaces” (CUPSs). These CUPSs facilitate people’s lives, but, at the same time, are threatened b...

  • Article
  • Open Access
7 Citations
2,294 Views
13 Pages

25 April 2023

Concurrent exposure to cadmium (Cd) and lead (Pb) is prevalent in the environment, but information on the long-term impacts of complex Cd–Pb exposure on herbivorous insects, especially at low doses, is scant. We studied the effects of complex C...

  • Article
  • Open Access
34 Citations
12,137 Views
36 Pages

Harnessing Insights from Social-Ecological Systems Research for Monitoring Sustainable Development

  • Odirilwe Selomane,
  • Belinda Reyers,
  • Reinette Biggs and
  • Maike Hamann

23 February 2019

The United Nations’ Agenda 2030 marks significant progress towards sustainable development by making explicit the intention to integrate previously separate social, economic and environmental agendas. Despite this intention, the Sustainable Developme...

  • Article
  • Open Access
23 Citations
14,659 Views
19 Pages

23 October 2013

We face a global crisis of un-sustainability—we need to change trajectory, but have so far displayed a collective inability to do so. This article suggests that one reason for this is our entrenched approach to change, which has inappropriately appli...

  • Concept Paper
  • Open Access
7 Citations
3,737 Views
24 Pages

3 November 2021

The social construction of the agri-food market has undergone revolutionary changes throughout history since the Anthropocene. This conceptual paper discusses the embeddedness of institutions in this market construction. To do so, this work analyses...

  • Article
  • Open Access
157 Views
18 Pages

A Unified Complex-Fresnel Model for Physically Based Long-Wave Infrared Imaging and Simulation

  • Peter ter Heerdt,
  • William Keustermans,
  • Ivan De Boi and
  • Steve Vanlanduit

Accurate modelling of reflection, transmission, absorption, and emission at material interfaces is essential for infrared imaging, rendering, and the simulation of optical and sensing systems. This need is particularly pronounced across the short-wav...

  • Article
  • Open Access
5 Citations
2,398 Views
14 Pages

16 June 2021

In this paper, a method for detecting synergistic effects of the interaction of elements in multi-element stochastic systems of separate redundancy, multi-server queuing, and statistical estimates of nonlinear recurrent relations parameters has been...

  • Article
  • Open Access
5 Citations
5,188 Views
29 Pages

Reimagining Sustainable Development and Economic Performance Indicators: A Human-Centric Maslow–Bossel Blueprint

  • Panagiotis Panagiotopoulos,
  • Ioannis Vardopoulos,
  • Marco Maialetti,
  • Clio Ciaschini,
  • Phoebe Koundouri and
  • Luca Salvati

9 December 2024

Reflecting the shift from purely quantitative economic growth to broader socio-environmental sustainability, this study proposes a framework for assessing sustainable development (SD) by integrating Maslow’s hierarchy of needs with Bossel&rsquo...

  • Article
  • Open Access
4 Citations
2,473 Views
19 Pages

A Multi-Attribute Decision-Making Approach for Critical Node Identification in Complex Networks

  • Xinyun Zhao,
  • Yongheng Zhang,
  • Qingying Zhai,
  • Jinrui Zhang and
  • Lanlan Qi

9 December 2024

Correctly identifying influential nodes in a complex network and implementing targeted protection measures can significantly enhance the overall security of the network. Currently, indicators such as degree centrality, closeness centrality, betweenne...

  • Article
  • Open Access
1 Citations
1,627 Views
20 Pages

Weighted Asymmetry Index: A New Graph-Theoretic Measure for Network Analysis and Optimization

  • Ali N. A. Koam,
  • Muhammad Faisal Nadeem,
  • Ali Ahmad and
  • Hassan A. Eshaq

30 October 2024

Graph theory is a crucial branch of mathematics in fields like network analysis, molecular chemistry, and computer science, where it models complex relationships and structures. Many indices are used to capture the specific nuances in these structure...

  • Article
  • Open Access
43 Citations
6,770 Views
20 Pages

Multidimensional Scaling Visualization Using Parametric Similarity Indices

  • J. A. Tenreiro Machado,
  • António M. Lopes and
  • Alexandra M. Galhano

30 March 2015

In this paper, we apply multidimensional scaling (MDS) and parametric similarity indices (PSI) in the analysis of complex systems (CS). Each CS is viewed as a dynamical system, exhibiting an output time-series to be interpreted as a manifestation of...

  • Article
  • Open Access
26 Citations
7,383 Views
31 Pages

25 February 2019

Socially responsible investment (SRI) indices provide an interesting opportunity to analyse the links between corporate financial performance (CFP) and corporate sustainability performance (CSP). However, few studies focus on the antecedents of inclu...

  • Article
  • Open Access
1 Citations
1,661 Views
16 Pages

28 July 2023

Marine plankton communities play a vital role in global carbon and nutrient cycles. Ensuring the robustness of these intricate ecosystems is critical for sustainable environmental management. In this paper, we apply complex network analysis to assess...

  • Article
  • Open Access
6 Citations
5,564 Views
12 Pages

Understanding Urban Complexity via the Spatial Diversity of Activities: An Application to Barcelona (Spain)

  • Salvador Rueda Palenzuela,
  • Albert Santasusagna Riu,
  • Berta Cormenzana Izquierdo,
  • Joan Tort Donada and
  • Xavier Úbeda

24 January 2022

Urban complexity can be measured by the numerical and spatial diversity of activities in a territory. Just as biodiversity can be measured in a natural ecosystem, diversity indices can be applied to urban settings. Urban diversity presents higher val...

  • Article
  • Open Access
3 Citations
2,408 Views
23 Pages

Complex Business Environment Systems and Corporate Innovation

  • Yu Gao,
  • Xiaojie Sun,
  • Na Liu,
  • Wenyu Zhang and
  • Jian Xu

11 September 2024

Sustainable development has become a corporate goal all over the world, and innovation as a crucial prerequisite for sustainable development has attracted much attention. This study investigates the relationship between the business environment and c...

  • Article
  • Open Access
1 Citations
2,494 Views
8 Pages

Synthesis, Structure and Bonding Analysis of the Zwitterionic PPP-Pincer Complex (6-Ph2P-Ace-5-)2P(O)AuCl2

  • Daniel Duvinage,
  • Enno Lork,
  • Simon Grabowsky,
  • Stefan Mebs and
  • Jens Beckmann

1 July 2020

The reaction of (6-Ph2P-Ace-5-)2P(O)H with (tht)AuCl3 proceeds via elimination of tetrahydrothiophene (tht) and HCl, providing the zwitterionic PPP-pincer complex (6-Ph2P-Ace-5-)2P(O)AuCl2 (1) as yellow crystals. The molecular structure of 1 was esta...

  • Article
  • Open Access
1 Citations
950 Views
15 Pages

2 October 2025

In pharmaceutical manufacturing, the reliability of machines and utility assets is critical to ensuring product quality, regulatory compliance, and uninterrupted operations. Traditional Risk-Based Maintenance (RBM) models quantify asset criticality u...

  • Article
  • Open Access
2 Citations
2,117 Views
17 Pages

Practical Considerations for the Application of Nonlinear Indices Characterizing the Atrial Substrate in Atrial Fibrillation

  • Emanuela Finotti,
  • Aurelio Quesada,
  • Edward J. Ciaccio,
  • Hasan Garan,
  • Fernando Hornero,
  • Raúl Alcaraz and
  • José J. Rieta

8 September 2022

Atrial fibrillation (AF) is the most common cardiac arrhythmia, and in response to increasing clinical demand, a variety of signals and indices have been utilized for its analysis, which include complex fractionated atrial electrograms (CFAEs). New m...

  • Article
  • Open Access
7 Citations
4,956 Views
18 Pages

8 October 2020

Financial time series have a fractal nature that poses challenges for their dynamical characterization. The Dow Jones Industrial Average (DJIA) is one of the most influential financial indices, and due to its importance, it is adopted as a test bed f...

  • Article
  • Open Access
2 Citations
3,833 Views
12 Pages

Interactive Visualisation of Sustainability Indicators for Water, Energy and Food Innovations

  • Paula J. Forbes,
  • Ruth E. Falconer,
  • Daniel Gilmour and
  • Nikolay Panayotov

1 June 2021

The Water-Energy-Food (WEF) nexus describes the synergies and trade-offs between water, energy and food. Despite the significant attention that the WEF nexus has received in recent years, challenges remain, primarily related to gaps in integrated dat...

  • Article
  • Open Access
2 Citations
2,600 Views
25 Pages

Hydrogeochemical Characterization and Processes Controlling Groundwater Chemistry of Complex Volcanic Rock of Jimma Area, Ethiopia

  • Wagari Mosisa Kitessa,
  • Adisu Befekadu Kebede,
  • Fayera Gudu Tufa,
  • Beekan Gurmessa Gudeta,
  • Alemu Yenehun,
  • Bekan Chelkeba,
  • Seifu Kebede Debela,
  • Fekadu Fufa Feyessa and
  • Kristine Walraevens

2 December 2024

The sustainable management of groundwater in the Jimma area is complicated by a lack of comprehensive studies on its chemical makeup and the geochemical processes influencing its hydrochemistry. This research aims to fill that gap by examining 51 gro...

  • Article
  • Open Access
2 Citations
1,398 Views
20 Pages

Advancing Grapevine Disease Detection Through Airborne Imaging: A Pilot Study in Emilia-Romagna (Italy)

  • Virginia Strati,
  • Matteo Albéri,
  • Alessio Barbagli,
  • Stefano Boncompagni,
  • Luca Casoli,
  • Enrico Chiarelli,
  • Ruggero Colla,
  • Tommaso Colonna,
  • Nedime Irem Elek and
  • Rocchina Tiso
  • + 12 authors

16 July 2025

Innovative applications of high-resolution airborne imaging are explored for detecting grapevine diseases. Driven by the motivation to enhance early disease detection, the method’s effectiveness lies in its capacity to identify isolated cases o...

  • Article
  • Open Access
18 Citations
2,743 Views
17 Pages

Normalized Sombor Indices as Complexity Measures of Random Networks

  • R. Aguilar-Sánchez,
  • J. A. Méndez-Bermúdez,
  • José M. Rodríguez and
  • José M. Sigarreta

29 July 2021

We perform a detailed computational study of the recently introduced Sombor indices on random networks. Specifically, we apply Sombor indices on three models of random networks: Erdös-Rényi networks, random geometric graphs, and bipartite random netw...

  • Article
  • Open Access
1 Citations
2,375 Views
36 Pages

The mapping and monitoring of rice fields on a large scale using medium and high spatial resolution data (<10 m) is essential for efficient agricultural management and food security. However, challenges such as managing large volumes of data, addr...

  • Feature Paper
  • Article
  • Open Access
3 Citations
4,732 Views
12 Pages

The Structure of Chaos: An Empirical Comparison of Fractal Physiology Complexity Indices Using NeuroKit2

  • Dominique Makowski,
  • An Shu Te,
  • Tam Pham,
  • Zen Juen Lau and
  • S. H. Annabel Chen

27 July 2022

Complexity quantification, through entropy, information theory and fractal dimension indices, is gaining a renewed traction in psychophsyiology, as new measures with promising qualities emerge from the computational and mathematical advances. Unfortu...

  • Article
  • Open Access
2 Citations
1,588 Views
13 Pages

Impact of Institutional Practices and Surgical Complexity on Sarcoma Surgery Costs: Driving Efficiency in Value-Based Healthcare

  • Georg Schelling,
  • Philip Heesen,
  • Boris Tautermann,
  • Markus Wepf,
  • Barbara Di Federico,
  • Annika Frei,
  • Kim van Oudenaarde,
  • Pietro Giovanoli,
  • Beata Bode-Lesniewska and
  • on behalf of the Swiss Sarcoma Network
  • + 1 author

13 June 2024

Background: Sarcomas present a unique challenge within healthcare systems due to their rarity and complex treatment requirements. This study explores the economic impact of sarcoma surgeries across three Swiss tertiary healthcare institutions, utiliz...

  • Article
  • Open Access
5 Citations
6,625 Views
26 Pages

Complex Network Methods for Plastic Deformation Dynamics in Metals

  • Arnold Kiv,
  • Arkady Bryukhanov,
  • Vladimir Soloviev,
  • Andrii Bielinskyi,
  • Taras Kavetskyy,
  • Dmytro Dyachok,
  • Ivan Donchev and
  • Viktor Lukashin

30 January 2023

Plastic deformation of DC04 steel is regarded as a nonlinear, complex, irreversible, and self-organized process. The stress–strain time series analysis provided the possibility to identify areas of (quasi-)elastic deformation, plastic deformati...

  • Article
  • Open Access
6 Citations
4,652 Views
20 Pages

4 April 2019

This paper is motivated by a distinctive appreciation of the difficulties posed by quantitative observational inquiry into complex social and economic systems. It develops ordinary and piecewise indices of joint and incremental informational associat...

  • Article
  • Open Access
9 Citations
4,231 Views
24 Pages

28 April 2022

A new spectrophotometric technique for the determination of both ordinary and extraordinary complex refractive indices (CRIs) of a stretched polyethylene terephthalate (Mylar) film is proposed. The sample was placed between two identical polarizers,...

  • Article
  • Open Access
1 Citations
2,360 Views
27 Pages

Aggregated Power Indices for Measuring Indirect Control in Complex Corporate Networks with Float Shareholders

  • Izabella Stach,
  • Jacek Mercik,
  • Cesarino Bertini,
  • Barbara Gładysz and
  • Jochen Staudacher

27 February 2023

The purpose of this paper is to introduce new methods to measure the indirect control power of firms in complex corporate shareholding structures using the concept of power indices from cooperative game theory. The proposed measures vary in desirable...

  • Article
  • Open Access
2,129 Views
18 Pages

Sensitivity of Fit Indices to Model Complexity and Misspecification in Exploratory Structural Equation Modeling

  • Xinya Liang,
  • Chunhua Cao,
  • Ji Li,
  • Ejike J. Edeh,
  • Jiaying Chen and
  • Wen-Juo Lo

Exploratory structural equation modeling (ESEM) allows items to cross-load on nontarget factors and provides flexibility in modeling multidimensional survey data. However, this flexibility comes at the cost of increased model complexity due to the es...

of 610