Results 41 to 50 of about 2,103 (194)

Pleistocene Climate Changes and Lineage Diversification of Sphenarium Grasshoppers (Orthoptera: Pyrgomorphidae)

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
We investigate the phylogeographic history and paleodistribution patterns of four closely related grasshopper species of the genus Sphenarium to test the relative impact of Pleistocene climate fluctuations on their diversification. We found that each species responded differently to these fluctuations, but their divergence, distribution, and ...
Salomón Sanabria‐Urbán   +4 more
wiley   +1 more source

Markov chains [PDF]

open access: yes, 1964
Call number: LD2668 .R4 1964 ...
Hijjawi, Abdul Hafez.
core  

The Effect of Regioisomerism on the TADF Properties of Organic Dyes

open access: yesChemistryEurope, Volume 3, Issue 5, September 18, 2025.
The properties of TADF emitters are highly dependent on the chosen electron donor and acceptor, as well as the π‐system that links them together. Herein, we show that regioisomerism affects the physical properties of spirobifluorene‐based systems in solution, thin films and crystals.
Tim Silies   +5 more
wiley   +1 more source

Towards a public debt policy in Italy

open access: yesPSL Quarterly Review, 2013
This paper represents the full report of a committee chaired by Luigi Spaventa, prepared for and presented to the Italian Treasury ministry in July 1989.
L. SPAVENTA
doaj   +1 more source

Synthesis, Characterization, and Electrochemical Properties of Tri‐ and Tetranuclear CoIII‐Oxo Complexes

open access: yesEuropean Journal of Inorganic Chemistry, Volume 28, Issue 24, August 29, 2025.
A series of three tetranuclear and two trinuclear Co(III) carboxylate complexes are synthesized and thoroughly spectroscopically and electrochemically characterized. The relative stability of the tetranuclear versus trinuclear complexes is investigated by density functional theory calculations, and the infrared and ultraviolet/visible spectra are ...
Timo Fockenberg   +5 more
wiley   +1 more source

Transparency in the European Bond Market

open access: yes, 2007
transparency, bond market, financial regulation, G18, H63,
PIGA, GUSTAVO   +5 more
core   +1 more source

Complex population genetic structure of the bark beetle predator Thanasimus formicarius (L.) (Coleoptera: Cleridae) across its European range

open access: yesAgricultural and Forest Entomology, Volume 27, Issue 3, Page 437-451, August 2025.
Abstract Thanasimus formicarius (L.) (Coleoptera: Cleridae) is an important bark beetle predator and can reduce bark beetle population densities of some of the most severe forest pests in Europe. We analysed the population genetics and phylogeography of T.
Eva Papek   +19 more
wiley   +1 more source

Sticking to fiscal plans: the role of institutions

open access: yes, 2010
EMU, Fiscal institutions, Fiscal policy, Stability and convergence programs, Stability and growth pact, H62, H63, H87,
Jürgen von Hagen, Jürgen Hagen
core   +1 more source

High‐pressure crystal structure of n‐hexylamine

open access: yesActa Crystallographica Section C, Volume 81, Issue 6, Page 346-350, June 2025.
The high‐pressure crystal structure of n‐hexylamine remains isostructural with its low‐temperature phase. The compressibility of the N—H…N hydrogen bonds has been analyzed in relation to the shortest C—H…N and H…H intermolecular distances.A primary amine, n‐hexylamine (HA, C6H15N), has been studied at high pressure by single‐crystal X‐ray diffraction ...
Bernadetta Kuleczka   +3 more
wiley   +1 more source

Optimal macroeconomic policies in a financial and economic crisis: a case study for Slovenia

open access: yes, 2011
Macroeconomics, Fiscal policy, Economics of transition, Slovenia, Crisis, Public debt, E17, E37, H63,
Reinhard Neck   +5 more
core   +1 more source

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