Results 61 to 70 of about 3,184,570 (360)

High‐Entropy Magnetism of Murunskite

Advanced Functional Materials, EarlyView.
The study of murunskite (K2FeCu3S4) reveals that its magnetic and orbital order emerges in a simple I4/mmm crystal structure with complete disorder in the transition metal positions. Mixed‐valence Fe ions randomly occupy 1/4 of the tetrahedral sites, with the remaining 3/4 being filled by non‐magnetic Cu+ ions.
Davor Tolj, Priyanka Reddy, Ivica Živković, Luka Akšamović, Jian Rui Soh, Kamila Komȩdera, Izabela Biało, Naveen Kumar Chogondahalli Muniraju, Trpimir Ivšić, Mario Novak, Oksana Zaharko, Clemens Ritter, Thomas LaGrange, Wojciech Tabiś, Ivo Batistić, László Forró, Henrik M. Rønnow, Denis K. Sunko, Neven Barišić   +18 more
wiley   +1 more source

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

Advanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner, Anna Wach, Xinwei Ye, Evelyn Ploetz, Bert M. Weckhuysen   +4 more
wiley   +1 more source

Peter Pekins, Professor, Department of Natural Resources & the Environment, travels to Poland [PDF]

, 2013
Professor Peter Pekins travelled to the 7th International Moose Conference in Poland to discuss research and management issues concerning moose that range west from Eastern Europe through North America.The Bialowieza National Park and Forest in western ...
Pekins, Peter J
core   +1 more source

Self‐Supporting Graphene Foam for the Removal of Chlorine from Water

Advanced Materials Interfaces, EarlyView.
Graphene‐based porous materials are promising for sorption and catalysis but often require binders. This study presents a self‐supporting graphene foam made from graphene oxide and hydrazine vapor. Structural, mechanical, and functional analyses confirm its superior chlorine removal efficiency (97%) and reusability, outperforming activated carbon in ...
Konrad Dybowski, Grzegorz Romaniak, Bartłomiej Januszewicz, Anna Sobczyk‐Guzenda, Jacek Grabarczyk, Adam K. Puszkarz, Anna Jędrzejczak   +6 more
wiley   +1 more source

Estimation of the Impact of COVID-19 Pandemic Lockdowns on Breast Cancer Deaths and Costs in Poland using Markovian Monte Carlo Simulation [PDF]

arXiv, 2023
This study examines the effect of COVID-19 pandemic and associated lockdowns on access to crucial diagnostic procedures for breast cancer patients, including screenings and treatments. To quantify the impact of the lockdowns on patient outcomes and cost, the study employs a mathematical model of breast cancer progression.
arxiv  

Analyzing shell structure from Babylonian and modern times [PDF]

Int. J. Mod. Phys. E 13, 247 - 260 (2004), 2003
We investigate ``shell structure'' from Babylonian times: periodicities and beats in computer-simulated lunar data corresponding to those observed by Babylonian scribes some 2500 years ago. We discuss the mathematical similarity between the Babylonians' recently reconstructed method of determining one of the periods of the moon with modern Fourier ...
arxiv   +1 more source

Hybrid Electroluminescence Device for On‐Demand Single Photon Generation at Room Temperature

Advanced Optical Materials, EarlyView.
New type of electroluminescent device based on hBN nanocrystals deposited on a GaN laser diode displays electrically driven emission of single photons at room temperature. Low g2(0) autocorrelation function values are achieved of < 0.2 for continuous driving and < 0.4 for on‐demand single‐photon emission.
Aleksander Rodek, Mateusz Hajdel, Kacper Oreszczuk, Anna Kafar, Muhammed Aktas, Łucja Marona, Marek Potemski, Czeslaw Skierbiszewski, Piotr Kossacki   +8 more
wiley   +1 more source

The contribution of the history of economic thought and economic history to the development of economics in the Third Polish Republic. A concise overview of academic centres, research output, and international impact

Ekonomista
Economic history and history of economic thought have had to contend with a crisis of a didactic and scientific nature since the beginning of the shift from a command economy to a free-market system in Poland, and the accompanying legal and ...
Rafał Matera, Janusz Skodlarski
doaj   +1 more source

How nanochannel confinement affects the DNA melting transition within the Poland-Scheraga model [PDF]

J. Chem. Phys. 143, 115101 (2015), 2015
When double-stranded DNA molecules are heated, or exposed to denaturing agents, the two strands get separated. The statistical physics of this process has a long history, and is commonly described in term of the Poland-Scheraga (PS) model. Crucial to this model is the configurational entropy for a melted region (compared to the entropy of an intact ...
arxiv   +1 more source

Double‐Sided Control of Product Type Preference in the Visible‐Light Initiated Reaction of 1,3‐Dicarbonyl Compounds with Alkenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract The demonstrated light‐initiated addition of radicals formed on an active methylene group to styrene derivatives exhibits a product selectivity influenced by the presence of a protic solvent. Under protic conditions, the predominant products are branched compounds with the alkene moiety attached to the methylene group.
Małgorzata Pałyga, Jan Rzepiela, Sebastian Baś   +2 more
wiley   +1 more source