Results 71 to 80 of about 852 (171)

Single ACPW‐Fed Dual‐/Tri‐Band Dual Circularly Polarized Microstrip Antenna for Improvised Explosive Device Detection

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
A compact single asymmetric coplanar waveguide feed (ACPW‐fed) dual circularly polarized microstrip antenna that operates at 1.8, 3.9, and 5.2 GHz in the entire operating frequency band 600 MHz–6 GHz for the radar detection of the improvised explosive devices (IEDs) carried by a person is introduced.
Jaures Anou Koudjou, Ghanshyam Singh, Clement Mbinack, Jacques Atangana, Arpan Hazra   +4 more
wiley   +1 more source

Physiological Differences Underlying Divergent Hypoxia Responses and Altitude Adaptations in Humans, Rats and Mice

Comprehensive Physiology, Volume 15, Issue 6, December 2025.
Despite many physiological similarities, mice, rats and humans respond remarkably differently to hypoxia. In line with their high‐altitude phylogeographic history, mice are physiologically well equipped to deal better with high‐altitude hypoxia than humans, while the low‐land origin of rats may be associated with a particularly high vulnerability to ...
Johannes Burtscher, Robert T. Mallet, Anupam Sah, Max Gassmann, Martin Burtscher, Rodrigo Iturriaga   +5 more
wiley   +1 more source

R/S-ANALYSIS OF THE CURRENCY MARKET

Aktualʹnì Problemi Rozvitku Ekonomìki Regìonu
The article substantiates the possibility of using R\S analysis for currency market research. The work is aimed at researching the currency market. The issue of research using R\S of the currency market is a new scientific direction.
І. В. Буртняк, Н. В. Судук, Р. М. Кашевський   +2 more
doaj   +1 more source

New empirical evidence on E.M.H.: case of developed and emerging markets – a microeconomic approach [PDF]

Revista de Studii Financiare, 2018
In today’s globalized world, with interconnected global markets, and implicitly a higher level of sensitivity, one of the most important issues to be addressed is represented by the way market mechanisms are functioning.
Iuliana Maria Ursu
doaj  

Making vertebrate fossil radiocarbon dates more useful for global scientific research

Journal of Quaternary Science, Volume 40, Issue 8, Page 1309-1335, November 2025.
ABSTRACT Radiocarbon dating of bones is essential for reconstructing timelines of species' occurrences, domestication, extinction, migrations, and interactions with Quaternary environments. Many studies compile these chronologies at continental to global scales by aggregating radiocarbon dates from various sources, often balancing data quantity and ...
Salvador Herrando‐Pérez, Thomas W. Stafford Jr.   +1 more
wiley   +1 more source

Comparative analysis of AR-GARCH and p-adic methods of the prediction of the financial market volatility

Вестник Пермского университета: Серия Экономика, 2019
Correct modeling and useful prediction of the volatility of the return rate of financial instruments play an essential role for making decisions on the financial market.
Pyotr Mikhailovich Simonov, Sofya Alekseevna Akhunyanova   +1 more
doaj   +1 more source

Time-Varying Efficiency and Economic Shocks: A Rolling DFA Test in Western European Stock Markets

International Journal of Financial Studies
This paper investigates the time-varying efficiency of Western European stock markets and examines how macroeconomic events defined as endogenous and exogenous shocks influence the degree of efficiency by either long-range dependence or mean reverting ...
Christophe Musitelli Boya
doaj   +1 more source

A new tool to detect financial data scaling

Frontiers in Applied Mathematics and Statistics
The assumption of frictionless markets has long been debated, drawing interest from scholars and practitioners alike. Market liquidity is a central theme in this regard; it is traditionally assessed through transaction costs, volume, price-based, and ...
Sergio Bianchi, Augusto Pianese, Massimiliano Frezza, Daniele Angelini   +3 more
doaj   +1 more source

Frequency-domain approach to the causal nexus between domestic and international economic policy uncertainties and equity returns of G20 countries

Cogent Economics & Finance
While uncertainty shocks affect equity markets at various investment horizons, knowledge about the causal effects of uncertainty and equity markets in the frequency domain is scant among the Group of Twenty (G20) countries regarded as systemically ...
Moses Dumayiri, Imhotep Paul Alagidede, Yakubu Awudu Sare   +2 more
doaj   +1 more source

Multifractal Detrended Cross-Correlations between Green Bonds and Commodity Markets: An Exploration of the Complex Connections between Green Finance and Commodities from the Econophysics Perspective

Fractal and Fractional
Green bonds represent a compelling financial innovation that presents a financial perspective solution to address climate change and promote sustainable development.
Turker Acikgoz, Soner Gokten, Abdullah Bugra Soylu   +2 more
doaj   +1 more source