Results 121 to 130 of about 762,449 (270)

Geology and ore deposits of the Tetiuxe District, Russia [PDF]

, 1917
George Shikataro Nishihara
openalex   +1 more source

Electrochemical Hydrodimerization of Furfural in Organic Media as an Efficient Route to Jet Fuel Precursor

ChemElectroChem, Volume 10, Issue 2, January 17, 2023., 2023
Taking off with hydrofuroin: An efficient strategy for the electrosynthesis of hydrofuroin – a jet fuel precursor – from biomass‐derived furfural is reported. We show that hydrofuroin can be synthesized in organic media in a simple undivided cell with a high faradaic efficiency (up to 74 %) and an excellent yield (up to 100 %).
Maria Temnikova, Jury Medvedev, Xenia Medvedeva, Nyhenflore H. Delva, Evgeniia Khairullina, Elena Krivoshapkina, Anna Klinkova   +6 more
wiley   +1 more source

Sustainable regional economic development and land use: a case of Russia [PDF]

arXiv
This paper analyzes sustainable regional economic development and land use employing a case study of Russia. The economics of land management in Russia which is shaped by both historical legacies and contemporary policies represents an interesting conundrum.
arxiv  

A Suggestion for the Publication of the Correspondence of Queen Elizabeth with the Russian Czars [PDF]

, 1915
Inna Lubimenko
openalex   +1 more source

Automatic hierarchical model builder

Journal of Chemometrics, Volume 36, Issue 12, December 2022., 2022
Abstract When building classification models of complex systems with many classes, the traditional chemometric approaches such as discriminant analysis or soft independent modeling of class analogy often fail. Some people resort to advanced deep neural network, but this is only an option if there is access to very many samples.
Lorenzo Marchi, Ivan Krylov, Robert T. Roginski, Barry Wise, Francesca Di Donato, Sonia Nieto‐Ortega, José Francielson Q. Pereira, Rasmus Bro   +7 more
wiley   +1 more source

A new Crocodyloidea from the middle Eocene of Zamora (Duero Basin, Spain)

The Anatomical Record, EarlyView.
Abstract The eusuchian crocodyliforms recorded in the Eocene levels of the Spanish Duero Basin belong to three lineages: Planocraniidae, with the species Duerosuchus piscator; Alligatoroidea, represented by several specimens of the genus Diplocynodon; and Crocodyloidea, which includes several specimens traditionally attributed to Asiatosuchus.
Iván Narváez, Ane de Celis, Fernando Escaso, Santiago Martín de Jesús, Adán Pérez‐García, Francisco Ortega   +5 more
wiley   +1 more source

Stacking Interactions: A Supramolecular Approach to Upgrade Weak Halogen Bond Donors

Chemistry – A European Journal, Volume 28, Issue 70, December 15, 2022., 2022
π‐Stacking interactions turn on halogen σ‐hole in unactivated chloro‐ and bromo‐arenes which are thus enabled to function as good halogen bonding donors. Abstract The co‐crystallization of tetracyanobenzene (TCB) with haloarenes ArX provided six new co‐crystals TCB ⋅ ArX (ArX=PhCl, PhBr, 4‐MeC6H4Cl, 4‐MeC6H4Br, 4‐MeOC6H4Cl, 1,2‐Br2C6H4) which were ...
Sergey V. Baykov, Daniil M. Ivanov, Svetlana O. Kasatkina, Bartomeu Galmés, Antonio Frontera, Giuseppe Resnati, Vadim Y. Kukushkin   +6 more
wiley   +1 more source

Hypercanines: Not just for sabertooths

The Anatomical Record, EarlyView.
Abstract Hypercanines are here defined as hypertrophied caniniform teeth, that is, canine teeth that are elongated to serve specific functions in different clades of mammals and their synapsid ancestors. This article presents an overview of the occurrence of hypercanines, their growth, and their function across a broad range of clades.
Lars Werdelin
wiley   +1 more source

Reactivity of Sodium Pentaphospholide Na[cyclo‐P5] towards C≡E (E=C, N, P) Triple Bonds

Chemistry – A European Journal, Volume 28, Issue 67, December 1, 2022., 2022
[Cyclo‐P5]− reacts with alkynes and the isolobal nitriles and phosphaalkynes to generate novel, aromatic, five‐membered heterocycles. DFT calculations give insight into the mechanism of the reaction. The anionic ligands coordinate in an η5‐fashion towards FeII to give the corresponding (aza)phosphametallocenes, which could be characterized ...
Andrey Petrov, Lawrence Conrad, Nathan T. Coles, Manuela Weber, Dirk Andrae, Almaz Zagidullin, Vasili Miluykov, Christian Müller   +7 more
wiley   +1 more source

Variability of jaw muscles in Tunisian street dogs and adaptation to skull shape

The Anatomical Record, EarlyView.
Abstract The impact of artificial selection on the masticatory apparatus of dogs has been poorly studied, and comparative data with dogs subjected to more natural constraints are lacking. This study explores the jaw musculature of Tunisian street dogs, which are largely free from the influence of breed‐specific selection.
Colline Brassard, Lobna Wertani, Anthony Herrel, Hassen Jerbi   +3 more
wiley   +1 more source