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239 Results Found

  • Article
  • Open Access
2 Citations
1,598 Views
18 Pages

The global economy frequently experiences cycles of rapid growth followed by abrupt crashes, challenging economists and analysts in forecasting and risk management. Crashes like the dot-com bubble crash and the 2008 global financial crisis caused hug...

  • Article
  • Open Access
14 Citations
7,381 Views
26 Pages

Inflation and Speculation in a Dynamic Macroeconomic Model

  • Matheus R. Grasselli and
  • Adrien Nguyen Huu

We study a monetary version of the Keen model by merging two alternative extensions, namely the addition of a dynamic price level and the introduction of speculation. We recall and study old and new equilibria, together with their local stability ana...

  • Article
  • Open Access
3 Citations
2,223 Views
20 Pages

12 March 2025

Policy incentives and technological advancements are driving the rapid expansion of renewable energy industries. However, as speculative investment intensifies, concerns about the potential formation of financial bubbles are growing. This paper exami...

  • Concept Paper
  • Open Access
15 Citations
6,549 Views
17 Pages

What Motivates Speculators to Speculate?

  • Bedane S. Gemeda,
  • Birhanu G. Abebe,
  • Andrzej Paczoski,
  • Yi Xie and
  • Giuseppe T. Cirella

31 December 2019

Land speculation that occurs on the urban border can be very problematic to the healthy development of cities—critical to economic growth. Speculative land investors, concerned with profits from trading in landed property, can especially affect...

  • Article
  • Open Access
2 Citations
4,430 Views
26 Pages

This paper examines the dynamic relationships between speculative activities, commodity returns, and macroeconomic conditions across five sectors compassing 29 commodities. Using weekly data spanning from January 2000 to July 2023, we construct compr...

  • Article
  • Open Access
1 Citations
1,429 Views
26 Pages

8 September 2025

Short-term dynamics in auction-based Day-Ahead electricity markets remain insufficiently studied. This paper investigates two such aspects in the Irish Day-Ahead market. First, we address an empirical gap by examining the extent of speculator (financ...

  • Review
  • Open Access
349 Citations
17,950 Views
21 Pages

Melatonin: A Mitochondrial Targeting Molecule Involving Mitochondrial Protection and Dynamics

  • Dun-Xian Tan,
  • Lucien C. Manchester,
  • Lilan Qin and
  • Russel J. Reiter

16 December 2016

Melatonin has been speculated to be mainly synthesized by mitochondria. This speculation is supported by the recent discovery that aralkylamine N-acetyltransferase/serotonin N-acetyltransferase (AANAT/SNAT) is localized in mitochondria of oocytes and...

  • Article
  • Open Access
64 Citations
12,618 Views
12 Pages

Sentiment-Induced Bubbles in the Cryptocurrency Market

  • Cathy Yi-Hsuan Chen and
  • Christian M. Hafner

Cryptocurrencies lack clear measures of fundamental values and are often associated with speculative bubbles. This paper introduces a new way of testing for speculative bubbles based on StockTwits sentiment, which is used as the transition variable i...

  • Article
  • Open Access
8 Citations
7,010 Views
27 Pages

10 November 2022

Global commodity markets, due to major health crises, political tension, sanctions, growing demand, and other global supply and demand factors, are currently particularly unstable. In addition to the macro-environmental factors that drive the prices,...

  • Article
  • Open Access
2,768 Views
18 Pages

11 September 2022

The behavioral choices and speculative psychology of the participants in medical waste disposal can lead to the evolution of the medical waste disposal crisis, which has a great impact on and represents a potential threat to environmental safety as w...

  • Article
  • Open Access
7 Citations
10,010 Views
23 Pages

12 July 2019

The main purpose of this article is to investigate a speculative trading system with a constant magnitude of return rate. We consider speculative operations related to the exchange rate given as the quotient of the base exchange medium by the quoted...

  • Article
  • Open Access
1 Citations
5,598 Views
21 Pages

Stock Market Hype: An Empirical Investigation of the Impact of Overconfidence on Meme Stock Valuation

  • Richard Mawulawoe Ahadzie,
  • Peterson Owusu Junior,
  • John Kingsley Woode and
  • Dan Daugaard

1 July 2025

This study investigates the relationship between overconfidence and meme stock valuation, drawing on panel data from 28 meme stocks listed from 2019 to 2024. The analysis incorporates key financial indicators, including Tobin’s Q ratio, market...

  • Essay
  • Open Access
5,803 Views
14 Pages

5 August 2025

The Apple TV+ series Severance (2022–present) offers a dystopian portrayal of workplace life that intensifies real-world dynamics of control, boundary management, and identity regulation. This paper analyzes Severance as a speculative case stud...

  • Article
  • Open Access
7 Citations
6,979 Views
13 Pages

An Empirical Test on Harrod’s Open Economy Dynamics

  • Giuseppe Orlando and
  • Fabio Della Rossa

This paper has the objective to empirically test Harrod’s explanations of economic dynamics addressing both growth and business cycles. In particular we test Harrod’s speculation that opening the economy to foreign trade could lead to a r...

  • Article
  • Open Access
17 Citations
3,929 Views
15 Pages

13 June 2023

Since its conception, the cryptocurrency market has been frequently described as an immature market, characterized by significant swings in volatility and occasionally described as lacking rhyme or reason. There has been great speculation as to what...

  • Review
  • Open Access
75 Citations
14,520 Views
12 Pages

Calcium: A Critical Factor in Pollen Germination and Tube Elongation

  • Ren Hua Zheng,
  • Shun De Su,
  • Hui Xiao and
  • Hui Qiao Tian

Pollen is the male gametophyte of higher plants. Its major function is to deliver sperm cells to the ovule to ensure successful fertilization. During this process, many interactions occur among pollen tubes and pistil cells and tissues, and calcium i...

  • Review
  • Open Access
5,136 Views
18 Pages

Defining a complex system and evaluating its complexity typically requires an interdisciplinary approach, integrating information theory, signal processing techniques, principles of dynamical systems, algorithm length analysis, and network science. T...

  • Review
  • Open Access
50 Citations
19,409 Views
26 Pages

13 February 2015

The actin depolymerizing factor (ADF)/cofilin protein family is essential for actin dynamics, cell division, chemotaxis and tumor metastasis. Cofilin-1 (CFL-1) is a primary non-muscle isoform of the ADF/cofilin protein family accelerating the actin f...

  • Feature Paper
  • Article
  • Open Access
13 Citations
8,183 Views
18 Pages

Sound Synthesis of Objects Swinging through Air Using Physical Models

  • Rod Selfridge,
  • David Moffat and
  • Joshua D. Reiss

16 November 2017

A real-time physically-derived sound synthesis model is presented that replicates the sounds generated as an object swings through the air. Equations obtained from fluid dynamics are used to determine the sounds generated while exposing practical par...

  • Article
  • Open Access
23 Citations
3,536 Views
28 Pages

16 October 2019

Integrated project delivery (IPD) is a new emerging delivery system, contributes to increase value to the owner, reduces waste and maximizes efficiency in the life cycle of projects. However, IPD system has not yet shifted from pilot-alike or particu...

  • Article
  • Open Access
15 Citations
2,889 Views
14 Pages

Cyclocarya paliurus is an important medical plant owing to the diverse bioactive compounds in its leaves. However, the heterodichogamy with female and male functions segregation within protandry (PA) or protogyny (PG) may greatly affect seed quality...

  • Review
  • Open Access
12 Citations
4,204 Views
11 Pages

The Role of Heme Oxygenase-1 Promoter Polymorphisms in Perinatal Disease

  • Ruka Nakasone,
  • Mariko Ashina,
  • Shinya Abe,
  • Kenji Tanimura,
  • Hans Van Rostenberghe and
  • Kazumichi Fujioka

Heme oxygenase (HO) is the rate-limiting enzyme in the heme catabolic pathway, which degrades heme into equimolar amounts of carbon monoxide, free iron, and biliverdin. Its inducible isoform, HO-1, has multiple protective functions, including immune...

  • Article
  • Open Access
3,251 Views
21 Pages

23 August 2024

This study introduces a robust model that captures wheat futures’ volatility dynamics, influenced by seasonality, time to maturity, and storage dynamics, with minimal calibratable parameters. Our approach reduces error-proneness and enhances pl...

  • Article
  • Open Access
1,710 Views
14 Pages

23 September 2022

The aim of this paper is to discuss several aspects regarding the dynamics and pattern formation in select cellular and graph neural circuit type architectures and to propose a new application. A unifying approach for these types of neural circuits b...

  • Feature Paper
  • Article
  • Open Access
2 Citations
3,889 Views
19 Pages

10 September 2024

Why do we remember the past, and plan the future? We introduce a toy model in which to investigate emergent time asymmetries: the causal multibaker maps. These are reversible discrete-time dynamical systems with configurable causal interactions. Impo...

  • Article
  • Open Access
23 Citations
4,385 Views
24 Pages

8 February 2021

The research purpose of this work is guiding the spatial morphological design of blocks via relevant indicators to realize suitable wind environments. In doing so, it is necessary to find the most suitable indicator types and value ranges for each ur...

  • Article
  • Open Access
911 Views
34 Pages

17 February 2025

To enhance the security and supervision of emergency materials from their source to transport, thus preventing safety incidents, a tripartite evolution model integrating the government, material production enterprises, and logistics entities is propo...

  • Article
  • Open Access
5 Citations
2,631 Views
16 Pages

Influence of Metro Track Irregularities on Pantograph Vibration and Its Interaction with Catenary

  • Bolun An,
  • Pu Wang,
  • Shuai Ma,
  • Zhuoran Ma,
  • Yanglong Zhong and
  • Wenqiang Zhao

24 June 2022

The problem of excessive wear of pantograph strips frequently occurs on China’s Z City Metro Line 1. After on-site investigation and analysis by the metro operating company, it was speculated that the problem was related to abnormal track irreg...

  • Article
  • Open Access
11 Citations
2,741 Views
16 Pages

Mechanisms of Selected Anionic Dye Removal by Clinoptilolite

  • Xisen Wang,
  • Jessica Baker,
  • Kristen Carlson and
  • Zhaohui Li

19 May 2022

The extensive use of color dyes in modern society has resulted in serious concerns of water contamination. Many organic dyes bear charges; thus, materials of opposite charges have been tested for sorptive removal. However, the results from several st...

  • Article
  • Open Access
2 Citations
4,067 Views
21 Pages

25 December 2019

Utilizing the tools of tendex and vortex, we study the highly dynamic plunge and merger phases of several π -symmetric binary black hole coalescences. In particular, we observe a decline of the strength of the current quadrupole moment compar...

  • Article
  • Open Access
3 Citations
3,806 Views
6 Pages

Measurements of Dynamic Contributions to Coherent Neutron Scattering

  • Sebastian Jaksch,
  • Alexandros Koutsioubas,
  • Stefan Mattauch,
  • Olaf Holderer and
  • Henrich Frielinghaus

In this manuscript, we are investigating the contribution of dynamic membrane properties of phospholipid membranes to coherent scattering signals under grazing incidence. Spectroscopic measurements under grazing incidence can provide useful insight i...

  • Article
  • Open Access
1 Citations
915 Views
15 Pages

Molecular Dynamics Study on the Nature of near Miscibility and the Role of Minimum Miscibility Pressure Reducer

  • Feng Liu,
  • Shengbing Zhang,
  • Jiale Zhang,
  • Zhaolong Liu,
  • Yonghui Chen and
  • Shixun Bai

14 February 2025

Gas miscible flooding, especially CO2 miscible flooding, is a key method for enhanced oil recovery. However, the high Minimum Miscibility Pressure (MMP) often makes true-miscible flooding impractical. A number of studies confirm the existence of a ne...

  • Review
  • Open Access
3 Citations
4,842 Views
18 Pages

An understanding of the participation and modulation of fibroblasts during tumor formation and growth is still unclear. Among many speculates, one might be the technical challenge to reveal the versatile function of fibroblasts in tissue complexity,...

  • Article
  • Open Access
12 Citations
3,106 Views
12 Pages

Study on the Hot Deformation Behavior of Stainless Steel AISI 321

  • Liudmila V. Radionova,
  • Danil V. Perevozchikov,
  • Aleksandr N. Makoveckii,
  • Victor N. Eremin,
  • Alexander M. Akhmedyanov and
  • Sergey V. Rushchits

7 June 2022

In this study, the hot deformation behavior of austenitic Ti-modified AISI 321 steel with a relatively high content of carbon (0.07 wt.%) and titanium (0.50 wt.%) was studied in the temperature range of 1000–1280 °C and strain rates in the...

  • Article
  • Open Access
1 Citations
2,019 Views
37 Pages

Energy Implications of Mitigating Side-Channel Attacks on Branch Prediction

  • Fahad Alqurashi,
  • Muhammad Al-Hashimi,
  • Mostafa Saleh and
  • Osama Abulnaja

16 February 2025

Spectre variants 1 and 2 pose grave security threats to dynamic branch predictors in modern CPUs. While extensive research has focused on mitigating these attacks, little attention has been given to their energy and power implications. This study pre...

  • Article
  • Open Access
548 Views
29 Pages

29 October 2025

This study investigates speculative bubbles in U.S. state-level electricity markets across commercial, industrial, and residential segments. Using monthly data (2005–2025) from the U.S. Energy Information Administration and employing the Genera...

  • Article
  • Open Access
14 Citations
6,729 Views
19 Pages

25 October 2016

This study analyzes the economic system dynamics of investment in real estate from mainly four participants in China. Local governments limit the supply of commercial and residential land to raise fiscal revenue, and expand debts by land mortgage to...

  • Article
  • Open Access
18 Citations
4,514 Views
23 Pages

14 November 2018

This article studies the relationship between the prices of fuel and EU Allowances (EUA) for carbon emissions during Phase 3 of the European Union Emissions Trading System. We find that the forward prices of EUA, coal, gas and Brent oil are jointly d...

  • Article
  • Open Access
8 Citations
12,985 Views
28 Pages

The anticipated next stage of human organization is often described by futurists as a global technological singularity. This next stage of complex organization is hypothesized to be actualized by scientific-technic knowledge networks. However, the ge...

  • Article
  • Open Access
1 Citations
2,054 Views
15 Pages

Dynamics of Aggregation in Systems of Self-Propelled Rods

  • Richard J. G. Löffler and
  • Jerzy Gorecki

15 November 2024

We highlight camphene–camphor–polypropylene plastic as a useful material for self-propelled objects that show aggregation while floating on a water surface. We consider self-propelled rods as an example of aggregation of objects character...

  • Review
  • Open Access
2 Citations
3,304 Views
12 Pages

18 November 2023

In the past decade, there have been significant advancements in the investigation of coherence-related phenomena in organic systems such as biological photosynthetic reaction centers. The d8 Pt(II) dinuclear complex or molecular aggregate with a meta...

  • Article
  • Open Access
13 Citations
3,629 Views
16 Pages

19 November 2021

In this paper, a new coupling simulation method is proposed for baler picker using automatic dynamic analysis of mechanical systems (ADAMS) and discrete element method (DEM). Field tests are carried out to verify the accuracy of the simulation model....

  • Article
  • Open Access
1,336 Views
29 Pages

This study looks at the impact of geopolitical risk on the volatility of wheat futures returns over the period 2012–2023, while controlling for inventories, shipping rates, and speculative activity. Using the volatility of CBOT first nearby fut...

  • Article
  • Open Access
11 Citations
2,457 Views
17 Pages

24 May 2022

We consider the problem of evolutionary self-organization of control strategies using the example of speculative trading in a non-stationary immersion market environment. The main issue that obstructs obtaining real profit is the extremely high insta...

  • Article
  • Open Access
6 Citations
8,015 Views
21 Pages

4 February 2025

Bitcoin, the pioneering cryptocurrency, is renowned for its extreme volatility and speculative nature, making accurate price prediction a persistent challenge for investors. While recent studies have employed multivariate models to integrate historic...

  • Article
  • Open Access
2,653 Views
20 Pages

Relativistic Inversion, Invariance and Inter-Action

  • Martin B. van der Mark and
  • John G. Williamson

23 June 2021

A general formula for inversion in a relativistic Clifford–Dirac algebra has been derived. Identifying the base elements of the algebra as those of space and time, the first order differential equations over all quantities proves to encompass the Max...

  • Article
  • Open Access
1 Citations
3,087 Views
16 Pages

21 August 2020

The aim of this article is to simulate the economic impact on Gross Domestic Product (GDP) and employment of renewable energy sources investment in Morocco over the next 40 years. In this sense, several potential scenarios of energy component evoluti...

  • Article
  • Open Access
3 Citations
2,925 Views
19 Pages

Optimal Tradeoff between MPP and Stability of a PV-Based Pumping System

  • Wahid Souhail,
  • Sameer Alsharif,
  • Irfan Ahmed and
  • Hedi Khammari

2 February 2022

This paper presents a novel algorithm to pick PV-based pumping system operating points that simultaneously achieve maximum delivered power and optimized stability. We present an in-depth analysis of operating point dynamics and shape the PV output cu...

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