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  • Article
  • Open Access
1,479 Views
24 Pages

Experimental and Theoretical Studies on the Kinetics and Mechanism of the C3H8/C3D8 + Cl Reaction

  • Łukasz Fojcik,
  • Grzegorz Mierzwa,
  • Zdzisław Latajka and
  • Dariusz Stanisław Sarzyński

14 November 2025

An experimental and theoretical investigation of the reaction between chlorine atoms and propane/deuterated propane (C3H8/C3D8) was performed. The experimental work aimed to determine absolute and site-specific rate constants for hydrogen and deuteri...

(This article belongs to the Section Physical Chemistry)
  • Article
  • Open Access
3 Citations
2,571 Views
19 Pages

10 October 2022

Symbolic execution is well known as a dynamic vulnerability discovery technique. Its greatest advantage is the capability to analyze the execution information of the program and to explore the path in the program deterministically. This is a more acc...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
28 Citations
5,492 Views
11 Pages

The reaction of alkenes with hydroxyl (OH) radical is of great importance to atmospheric and combustion chemistry. This work used a combined ab initio/transition state theory (TST) method to study the reaction mechanisms and kinetics for hydrogen abs...

(This article belongs to the Section Physical Chemistry and Chemical Physics)
  • Article
  • Open Access
8 Citations
4,555 Views
16 Pages

Hydrogen atom abstraction from propargyl C-H sites of alkynes plays a critical role in determining the reactivity of alkyne molecules and understanding the formation of soot precursors. This work reports a systematic theoretical study on the reaction...

(This article belongs to the Section Physical Chemistry and Chemical Physics)
  • Article
  • Open Access
4 Citations
2,999 Views
14 Pages

1 September 2019

Language plays a prominent role in the activities of human beings and other intelligent creatures. One of the most important functions of languages is communication. Inspired by this, we attempt to develop a novel language for cooperation between art...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
1,988 Views
17 Pages

14 September 2025

Xylenes are important components of gasoline fuels, and their hydrogen abstraction reactions are crucial in the consumption pathways of combustion processes. In existing models, rate constants for these reactions are commonly derived by estimation, w...

(This article belongs to the Special Issue Alternative Fuel and Clean Combustion)
  • Article
  • Open Access
243 Views
29 Pages

3 September 2026

A comprehensive Quasi-Classical Trajectory (QCT) investigation is reported for the hydrogen-abstraction reaction, OH (ν = 0, j = 2) + D2 (ν = 0, j = 2) → HOD* + D, aimed at clarifying the mechanisms of energy and angular-momentum disposal...

(This article belongs to the Special Issue New Insights and Applications of Laser Technology)
  • Article
  • Open Access
2,652 Views
12 Pages

The triplet excited state reactivity towards phenolic hydrogen of the α-diketones benzil and 2,2′-furil in the ionic liquid 1-n-butyl-3-methyl imidazolium hexafluorophosphate [bmim.PF6] was investigated employing the nanosecond laser flas...

  • Article
  • Open Access
2 Citations
3,020 Views
14 Pages

1 November 2021

Since 1945, official Catholic discourse around nuclear weapons has condemned their existence on the one hand and supported them as deterrents on the other. This paper argues the largely abstracted discourse on nuclear weapons within the World Church...

(This article belongs to the Special Issue Religion and the Atomic Age)
  • Article
  • Open Access
602 Views
23 Pages

24 July 2026

Dynamic scheduling systems often rely on structured domain knowledge for real-time optimization and decision making. However, much of this knowledge originates from unstructured text, such as operational manuals, maintenance logs, and expert records....

(This article belongs to the Special Issue Intelligent Systems and Dynamic Scheduling: Optimization and Management, 2nd Edition)
  • Article
  • Open Access
3 Citations
2,621 Views
15 Pages

16 August 2021

The functional abstract second order impulsive differential equation with state dependent delay is studied in this paper. First, we consider a second order system and use a control to determine the controllability result. Then, using Sadovskii’s fixe...

(This article belongs to the Section Mathematical Analysis)
  • Article
  • Open Access
33 Citations
9,397 Views
49 Pages

14 April 2010

This article surveys fundamental and applied aspects of symmetry in system models, and of symmetry reduction methods used to counter state explosion in model checking, an automated formal verification technique. While covering the research field broa...

(This article belongs to the Special Issue Feature Papers: Symmetry Concepts and Applications)
  • Proceeding Paper
  • Open Access
1,714 Views
4 Pages

14 November 2018

The present work aims to compare two possible pathways of a pre-reaction complex in the reaction of transfer of a hydrogen atom from ammonia to a nitro compound forming. Nitrobenzene, nitromethane, and HNO2 were used as nitro compounds. The proposed...

(This article belongs to the Proceedings of 22nd International Electronic Conference on Synthetic Organic Chemistry)
  • Article
  • Open Access
1,004 Views
27 Pages

Four-Dimensional Spaces of Complex Numbers and Unitary States of Two-Qubit Quantum Systems

  • Mars B. Gabbassov,
  • Tolybay Z. Kuanov,
  • Turganbay K. Yermagambetov and
  • Berik I. Tuleuov

22 October 2025

The pure states of two-qubit quantum systems are described by a four-dimensional vector of complex numbers, and unitary operators transferring a two-qubit quantum system from one state to another have the form of a 4×4 matrix with complex eleme...

(This article belongs to the Section C: Physics)
  • Article
  • Open Access
2 Citations
7,315 Views
21 Pages

22 June 2018

Network games (NGs) are played on directed graphs and are extensively used in network design and analysis. Search problems for NGs include finding special strategy profiles such as a Nash equilibrium and a globally-optimal solution. The networks mode...

  • Article
  • Open Access
33 Citations
3,752 Views
17 Pages

A Note on Existence of Mild Solutions for Second-Order Neutral Integro-Differential Evolution Equations with State-Dependent Delay

  • Shahram Rezapour,
  • Hernán R. Henríquez,
  • Velusamy Vijayakumar,
  • Kottakkaran Sooppy Nisar and
  • Anurag Shukla

This article is mainly devoted to the study of the existence of solutions for second-order abstract non-autonomous integro-differential evolution equations with infinite state-dependent delay. In the first part, we are concerned with second-order abs...

(This article belongs to the Special Issue Fractional Dynamical Systems: Applications and Theoretical Results)
  • Article
  • Open Access
3,378 Views
16 Pages

The Regulator Problem to the Convection–Diffusion Equation

  • Andrés A. Ramírez and
  • Francisco Jurado

20 April 2023

In this paper, from linear operator, semigroup and Sturm–Liouville problem theories, an abstract system model for the convection–diffusion (C–D) equation is proposed. The state operator for this abstract system model is here defined...

(This article belongs to the Special Issue Applications of Partial Differential Equations in Mathematical Physics, 1st Edition)
  • Article
  • Open Access
1 Citations
2,521 Views
21 Pages

13 May 2024

In text classifier models, the complexity of recurrent neural networks (RNNs) is very high because of the vast state space and uncertainty of transitions, which makes the RNN classifier’s explainability insufficient. It is almost impossible to...

(This article belongs to the Section Evolutionary Algorithms and Machine Learning)
  • Feature Paper
  • Article
  • Open Access
2 Citations
3,871 Views
29 Pages

Latent Abstractions in Generative Diffusion Models

  • Giulio Franzese,
  • Mattia Martini,
  • Giulio Corallo,
  • Paolo Papotti and
  • Pietro Michiardi

31 March 2025

In this work, we study how diffusion-based generative models produce high-dimensional data, such as images, by relying on latent abstractions that guide the generative process. We introduce a novel theoretical framework extending Nonlinear Filtering...

(This article belongs to the Section Statistical Physics)
  • Article
  • Open Access
3 Citations
3,707 Views
10 Pages

Unclear Insomnia Concept in Randomized Controlled Trials and Systematic Reviews: A Meta-Epidemiological Study

  • Masahiro Banno,
  • Yasushi Tsujimoto,
  • Kunihiro Kohmura,
  • Eisuke Dohi and ,
  • Shunsuke Taito,
  • Hidehiro Someko and
  • Yuki Kataoka
  • + 2 authors+ 0 author

There are two possible ways to conceptualize the term “insomnia”: insomnia disorder and insomnia symptoms, which are often poorly reported. The purpose of this study was to examine the proportion of randomized controlled trials (RCTs) and systematic...

  • Article
  • Open Access
3 Citations
2,794 Views
17 Pages

Quantifying the Multidimensionality of Abstract Concepts: An Italian Database

  • Virginia Maria Borsa,
  • Maria Arioli,
  • Riccardo Verni,
  • Nicola Canessa and ,
  • Stefano F. Cappa and
  • Eleonora Catricalà
  • + 1 author+ 0 author

21 February 2025

Background: The embodied cognition approach, as applied to concrete knowledge, is centred on the role of the perceptual and motor aspects of experience. To extend the embodied framework to abstract knowledge, some studies have suggested that further...

(This article belongs to the Section Sensory and Motor Neuroscience)
  • Article
  • Open Access
1 Citations
1,492 Views
20 Pages

A Finite Representation of Durational Action Timed Automata Semantics

  • Ahmed Bouzenada,
  • Djamel Eddine Saidouni and
  • Gregorio Díaz

20 December 2024

Durational action timed automata (daTAs) are state transition systems like timed automata (TAs) that capture information regarding the concurrent execution of actions and their durations using maximality-based semantics. As the underlying semantics o...

(This article belongs to the Special Issue Formal Methods in Computer Science: Theory and Applications)
  • Article
  • Open Access
4 Citations
938 Views
8 Pages

1 December 2012

Background: he increasing cost of cancer drugs underscores the importance of economic analyses. Although guide-lines for abstract reporting of randomized controlled studies and phase i trials are available, similar rec-ommendations for conference abs...

  • Article
  • Open Access
3,424 Views
13 Pages

Action Generative Networks Planning for Deformable Object with Raw Observations

  • Ziqi Sheng,
  • Kebing Jin,
  • Zhihao Ma and
  • Hankz-Hankui Zhuo

2 July 2021

Synthesizing plans for a deformable object to transit from initial observations to goal observations, both of which are represented by high-dimensional data (namely “raw” data), is challenging due to the difficulty of learning abstract state represen...

(This article belongs to the Special Issue Machine and Deep Learning in Sensing and Imaging: Emerging Trends, Challenges and Opportunities)
  • Article
  • Open Access
1 Citations
1,603 Views
12 Pages

In the scale of abstract Banach spaces, the existence as well as the controllability are considered for a class of evolution systems involving conformable fractional derivatives. Under essential conditions on nonlinearity, among other conditions, exi...

(This article belongs to the Section General Mathematics, Analysis)
  • Review
  • Open Access
10 Citations
7,294 Views
31 Pages

16 September 2023

Social stress can be caused by many factors. The United Nations Convention on the Rights of Persons with Disabilities (CRPD) highlights many social stressors disabled people experience in their daily lives. How social stressors experienced by disable...

  • Feature Paper
  • Article
  • Open Access
2 Citations
4,437 Views
25 Pages

Emulating Cued Recall of Abstract Concepts via Regulated Activation Networks

  • Rahul Sharma,
  • Bernardete Ribeiro,
  • Alexandre Miguel Pinto and
  • Amílcar Cardoso

28 February 2021

Abstract concepts play a vital role in decision-making or recall operations because the associations among them are essential for contextual processing. Abstract concepts are complex and difficult to represent (conceptually, formally, or computationa...

(This article belongs to the Special Issue Applied Cognitive Sciences)
  • Article
  • Open Access
246 Views
23 Pages

12 October 2026

Forestry research produces different kinds of knowledge, including ecological explanations, resource assessments, decision tools, and policy analyses, yet its practical content is usually judged by the recommendations it contains. Drawing on full-tex...

(This article belongs to the Section Forest Economics, Policy, and Social Science)
  • Article
  • Open Access
4 Citations
2,402 Views
19 Pages

8 October 2023

Using low-temperature (shallow) groundwater as a heat source or heat sink is a common practice to supply space heating or cooling, especially in the United States, Canada, China, and several European countries. The groundwater heat pump (GWHP) system...

(This article belongs to the Section J: Thermal Management)
  • Article
  • Open Access
5 Citations
4,369 Views
35 Pages

Decision Support System for Sustainable Exploitation of the Eocene Aquifer in the West Bank, Palestine

  • Andreja Jonoski,
  • Tanvir Ahmed,
  • Mohammad N. Almasri and
  • Muath Abu-Saadah

16 January 2023

Groundwater is a crucial resource for water supply and irrigation in many parts of the world, especially in the Middle East. The Eocene aquifer, located in the northern part of the West Bank, Palestine, is threatened by unsustainable groundwater abst...

(This article belongs to the Special Issue Groundwater Management in a Changing World: Challenges and Endeavors)
  • Article
  • Open Access
28 Citations
8,420 Views
12 Pages

22 May 2018

Malware allegedly developed by nation-states, also known as advanced persistent threats (APT), are becoming more common. The task of attributing an APT to a specific nation-state or classifying it to the correct APT family is challenging for several...

(This article belongs to the Special Issue Selected Papers from the 26th International Conference on Artificial Neural Networks - ICANN 2017)
  • Article
  • Open Access
1 Citations
2,849 Views
27 Pages

NEMAS: Norm Entrepreneurship in Multi-Agent Systems

  • Amritha Menon Anavankot,
  • Stephen Cranefield and
  • Bastin Tony Roy Savarimuthu

25 May 2024

We propose a framework that integrates norm entrepreneurship from human society into the dynamics of an agent society. Most work in agent coordination in a distributed environment studies norms that are provided to agents as part of their specificati...

(This article belongs to the Section Complex Systems and Cybernetics)
  • Review
  • Open Access
138 Citations
50,905 Views
50 Pages

Hierarchical Reinforcement Learning: A Survey and Open Research Challenges

  • Matthias Hutsebaut-Buysse,
  • Kevin Mets and
  • Steven Latré

Reinforcement learning (RL) allows an agent to solve sequential decision-making problems by interacting with an environment in a trial-and-error fashion. When these environments are very complex, pure random exploration of possible solutions often fa...

(This article belongs to the Section Learning)
  • Article
  • Open Access
29 Citations
5,533 Views
15 Pages

A Bibliometric Analysis on Dengue Outbreaks in Tropical and Sub-Tropical Climates Worldwide Since 1950

  • Shin-Yueh Liu,
  • Tsair-Wei Chien,
  • Ting-Ya Yang,
  • Yu-Tsen Yeh and ,
  • Willy Chou and
  • Julie Chi Chow
  • + 1 author+ 0 author

Severe dengue outbreaks (DOs) affect the majority of Asian and Latin American countries. Whether all DOs always occurred in sub-tropical and tropical areas (STTA) has not been verified. We downloaded abstracts by searching keywords “dengue (MeSH Majo...

(This article belongs to the Special Issue The Socio-Environmental Determinants Underlying the Spatial: Epidemiology of Dengue)
  • Article
  • Open Access
3 Citations
3,311 Views
32 Pages

18 April 2024

This paper introduces a multidisciplinary conceptual perspective encompassing artificial intelligence (AI), artificial general intelligence (AGI), and cybernetics, framed within what we call the formalism of generalized neuromorphism. Drawing from re...

(This article belongs to the Section B: Mathematics)
  • Article
  • Open Access
8 Citations
2,542 Views
26 Pages

18 May 2023

Image abstraction simplifies complex images, highlights specific features, and preserves different levels of structures to achieve a desired style. This paper presents a constructive and adjustable data hiding algorithm to convey various secret messa...

(This article belongs to the Special Issue Data Hiding and Its Applications: Digital Watermarking and Steganography (Volume II))
  • Article
  • Open Access
11 Citations
7,296 Views
20 Pages

8 September 2022

A systematic review allows synthesizing the state of knowledge related to a clearly formulated research question as well as understanding the correlations between exposures and outcomes. A systematic review usually leverages explicit, reproducible, a...

(This article belongs to the Topic Software Engineering and Applications)
  • Article
  • Open Access
18 Citations
2,949 Views
22 Pages

CvAMoS—Event Abstraction Using Contextual Information

  • Gemma Di Federico and
  • Andrea Burattin

18 March 2023

Process mining analyzes events that are logged during the execution of a process, with the aim of gathering useful information and knowledge. Process discovery algorithms derive process models that represent these processes. The level of abstraction...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
8 Citations
4,871 Views
13 Pages

11 May 2022

Product quality is an important part of enterprise competitiveness. Product processing is the key process of quality formation. In smart factories, the improvement of data acquisition and processing capability provides a basis for data-based quality...

(This article belongs to the Special Issue Advanced Processes Creating New Technologies in Tomorrow's Industry)
  • Article
  • Open Access
24 Citations
9,465 Views
28 Pages

The envisioned introduction of autonomous Small Unmanned Aircraft Systems (sUAS) into low-altitude urban airspace necessitates high levels of system safety. Despite increased system autonomy, humans will most likely remain an essential component in a...

(This article belongs to the Collection Unmanned Aerial Systems)
  • Feature Paper
  • Article
  • Open Access
1,307 Views
13 Pages

Entropic Probability and Context States

  • Benjamin Schumacher and
  • Michael D. Westmoreland

12 February 2025

In a previous paper, we introduced an axiomatic system for information thermodynamics, deriving an entropy function that includes both thermodynamic and information components. From this function, we derived an entropic probability distribution for c...

(This article belongs to the Section Thermodynamics)
  • Article
  • Open Access
12 Citations
4,313 Views
15 Pages

Diverse Decoding for Abstractive Document Summarization

  • Xu-Wang Han,
  • Hai-Tao Zheng,
  • Jin-Yuan Chen and
  • Cong-Zhi Zhao

23 January 2019

Recently, neural sequence-to-sequence models have made impressive progress in abstractive document summarization. Unfortunately, as neural abstractive summarization research is in a primitive stage, the performance of these models is still far from i...

(This article belongs to the Special Issue Advances in Deep Learning)
  • Editorial
  • Open Access
3,634 Views
4 Pages

1 August 2024

The essays gathered in this Special Issue of Arts concern artists working in the United States and Europe since the 1960s who have leveraged sculptural abstraction to address topical issues without ceding to the classical framework of figuration [...]

(This article belongs to the Special Issue Modern and Contemporary Art: Topical Abstraction in Contemporary Sculpture)
  • Article
  • Open Access
11 Citations
6,094 Views
18 Pages

11 August 2015

The chlorothiophenoxy radicals (CTPRs) are key intermediate species in the formation of polychlorinated dibenzothiophenes/thianthrenes (PCDT/TAs). In this work, the formation of CTPRs from the complete series reactions of 19 chlorothiophenol (CTP)...

(This article belongs to the Special Issue Chemical Bond and Bonding 2015)
  • Article
  • Open Access

31 October 2026

Studies of user-generated video game reviews make sampling decisions that limit how far their findings can be generalized. How often these decisions are reported has not been measured. This abstract-level systematic mapping study screened 868 records...

(This article belongs to the Special Issue Emerging Technologies of Human–Computer Interaction, 2nd Edition)
  • Article
  • Open Access
4,245 Views
33 Pages

Abstracting Strings for Model Checking of C Programs

  • Henrich Lauko,
  • Martina Olliaro,
  • Agostino Cortesi and
  • Petr Roc̆kai

5 November 2020

Data type abstraction plays a crucial role in software verification. In this paper, we introduce a domain for abstracting strings in the C programming language, where strings are managed as null-terminated arrays of characters. The new domain M-Strin...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
21 Citations
5,264 Views
15 Pages

12 January 2024

The design of microfluidic devices is a cumbersome and tedious process that can be significantly improved by simulation. Methods based on Computational Fluid Dynamics (CFD) are considered state-of-the-art, but require extensive compute time—oft...

(This article belongs to the Section E: Engineering and Technology)
  • Proceeding Paper
  • Open Access
5,260 Views
5 Pages

The concept of Platonism is extended by introducing the new concept of a “Platonic computer” which is incorporated in metacomputics. The theoretical framework of metacomputics postulates that such a Platonic computer exists within the rea...

(This article belongs to the Proceedings of The 2021 Summit of the International Society for the Study of Information)
  • Feature Paper
  • Article
  • Open Access
944 Views
22 Pages

A Well-Posed Evolutionary Inclusion in Mechanics

  • Rawane Mansour and
  • Mircea Sofonea

6 June 2025

We consider an evolutionary inclusion associated with a time-dependent convex in an abstract Hilbert space. We recall a unique solvability result obtained based on arguments of nonlinear equations with maximal monotone operators combined with a penal...

(This article belongs to the Section Mathematical Analysis)
  • Article
  • Open Access
9 Citations
4,540 Views
16 Pages

25 January 2017

In this manuscript, we implement Bohnenblust–Karlin’s fixed point theorem to demonstrate the existence of mild solutions for a class of impulsive fractional integro-differential inclusions (IFIDI) with state-dependent delay (SDD) in Banach spaces. An...

(This article belongs to the Special Issue Fractional Differential and Difference Equations)

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