Results 71 to 80 of about 38,078 (213)

Optical variabilities in Be/X-ray binary system:GRO J2058+42 [PDF]

, 2007
We present an analysis of long-term optical monitoring observations and optical spectroscopic observations of the counterpart to CXOU J205847.5+414637 (high mass X-ray binary system). We search for a variability in the light curve of Be star.
A. Baykal, Akerlof, Baade, Balona, Coe, Floquet, Guerrero, Gutierrez-Soto, Hanuschik, Inam, Kiziloglu, Koenigsberger, Lee, Lenz, M. Özbey, N. Kızıloğlu, Negueruela, Negueruela, Neiner, Okazaki, Okazaki, Percy, Porter, Quirrenbach, Reig, Reig, Rivinius, Rivinius, Roberts, S. K. Yerli, Scargle, Steele, Stefl, Taylor, Waters, Wilson, Wilson, Ü. Kızıloğlu   +37 more
core   +2 more sources

Evaluating the accuracy of the EcoservR toolkit for fine‐resolution habitat mapping

Ecological Solutions and Evidence, Volume 7, Issue 2, April/June 2026.
Accurate habitat maps are essential for monitoring ecological change and supporting nature recovery planning. We evaluate the EcoservR rule‐based habitat mapping toolkit using field survey data from Merseyside and the North York Moors, validating classifications across the Joint Nature Conservation Committee (JNCC) Phase 1 hierarchy.
Sandra Angers‐Blondin, Colm Bowe, Luke Kinross Bentley, Alex Owusu Amoakoh, Joe Bellis, Lucy Dowdall, Noémie Bonnin, Stamatia Galata, Hannah Branwood, Andrew Clark, Chloe Bellamy, Hanna Partoft   +11 more
wiley   +1 more source

Effect of Monetary Policy Decisions and Announcements on the Price of Cryptocurrencies: An Elastic-Net With Arima Residuals Approach

Economics and Culture
This study analysed the three cryptocurrencies with the largest market capitalization: Bitcoin, Ether (cryptocurrency built upon the Ethereum project's blockchain technology), and Binance coin, which account for 60% of the total cryptocurrency market ...
Peciulis Tomas, Vasiliauskaite Asta
doaj   +1 more source

The Russian invasion of Ukraine and the exchange rate of the Polish zloty: A fallacy of monetary autonomy?

International Journal of Management and Economics
We use the Twitter application programming interface to construct a novel indicator capturing the varying perceptions of geopolitical risk related to the war in Ukraine.
Borowski Jakub, Jaworski Krystian
doaj   +1 more source

The position of NewConnect against the Alternative Markets of European countries. The impact of GDP on volatility in the indices and turnover value

Journal of Economics and Management, 2020
Aim/purpose – The aim of the paper is to compare and create a ranking of alternative trading systems and to investigate if there is a relationship between Gross Domestic Product (GDP) and stock indices of those markets and correlation between GDP and ...
Radke Michał
doaj   +1 more source

Families of explicitly isogenous Jacobians of variable-separated curves [PDF]

, 2010
We construct six infinite series of families of pairs of curves (X,Y) of arbitrarily high genus, defined over number fields, together with an explicit isogeny from the Jacobian of X to the Jacobian of Y splitting multiplication by 2, 3, or 4.
Arbarello, Bosma, Bost, Brumer, Cassels, Davenport, Donagi, Feit, Fried, Fried, Fried, Kedlaya, Lidl, Mestre, Oort, Poonen, Vélu, Zarhin   +17 more
core   +6 more sources

Strengthening Potentials of Lithium‐Doped Soda–Lime–Silicate Glasses Through Surface Crystallization of Quartz‐ss

International Journal of Applied Glass Science, Volume 17, Issue 2, April 2026.
ABSTRACT The formation of a crystallized surface layer, having a lower coefficient of thermal expansion (CTE) than the parent glass, can be exploited to place the glass surface under compression during cooling from crystallization temperature and hence improve mechanical properties.
Fabian Stoelzel, Thorsten Gerdes
wiley   +1 more source

Indian and Chinese Metal Futures Markets: A Linkage Analysis

Acta Universitatis Sapientiae: Economics and Business, 2022
This paper aims to test the long-run and short-run relationships between the Indian and Chinese metal futures markets using the weekly closing prices of three nonferrous metals, that is, copper, aluminium, and zinc, for the period of 2009–2020.
Kumar Ravi, Dhiman Babli
doaj   +1 more source

An Analysis of the Decay $B \rightarrow D^* X \ell \bar\nu_\ell$ with Predictions from Heavy Quark and Chiral Symmetry

, 1992
This paper considers the implications of the heavy quark and chiral symmetries for the semi-leptonic decay $B \rightarrow D^* X \ell \bar \nu_\ell$. The general kinematic analysis for decays of the form {\sl pseudoscalar meson $\rightarrow$ vector meson $
A. Pais, C. L. Y. Lee, Clarence L. Y. Lee, G. Burdman, M. B. Wise, N. Cabibbo, N. Isgur, N. Isgur, P. Cho, S. Barlag, T.-M. Yan   +10 more
core   +1 more source

Upcycling Brewers' Spent Grain Into High‐Performance Protein Nanofibers for Sustainable Non‐Woven Textiles

Advanced Sustainable Systems, Volume 10, Issue 3, March 2026.
A common brewing by‐product is transformed into fine, flexible fibers using a simple spinning process, pointing to a new route for turning waste into useful materials. The study shows how gentle post‐treatments make these fibers far more robust in everyday conditions, opening the door to sustainable fabrics and functional nonwovens.
Alice J. Hann, Ming Dong, Yikun Zhang, Oliver Tomes, Han Zhang, Emiliano Bilotti, Edward J. Mitchell, Dimitrios G. Papageorgiou   +7 more
wiley   +1 more source