Results 31 to 40 of about 65,055 (310)

A Lewis Acid Stabilized Ketenimine in an Unusual Variant of the Electrophilic Aromatic Substitution

open access: yesChemistry – A European Journal, Volume 28, Issue 67, December 1, 2022., 2022
By the action of a strong Lewis acid, isomerization of the tricyanomethane to the ketenimine, HN=C=C(CN)2, is triggered, which in turn directly attacks an aromatic species in an electrophilic aromatic substitution. Abstract Electrophilic aromatic substitution (EAS) can provide a straightforward approach to the efficient synthesis of functionalized ...
Jonas Surkau   +5 more
wiley   +1 more source

Russia’s Soft Power as a Limited Efficiency Tool in Lithuania

open access: yesPolitologija, 2019
[full article, abstract in English; abstract in Lithuanian] Lithuania has been a target of Russia’s soft power efforts for the past two decades. The aim of this article is to analyse Russia’s soft power influence possibilities in Lithuania.
Giedrius Česnakas, Vytautas Isoda
doaj   +1 more source

Comparing Efficiency of Lysis Buffer Solutions and Sample Preparation Methods for Liquid Chromatography–Mass Spectrometry Analysis of Human Cells and Plasma

open access: yesMolecules, 2022
The use of a proper sample processing methodology for maximum proteome coverage and high-quality quantitative data is an important choice to make before initiating a liquid chromatography–mass spectrometry (LC–MS)-based proteomics study.
Lasse Neset   +3 more
doaj   +1 more source

On the smoothness of $C^1$-contact maps in $C^{\infty}$-rigid Carnot groups [PDF]

open access: yesarXiv, 2020
We show that in any $C^\infty$-rigid Carnot group in the sense of Ottazzi - Warhurst, $C^1$-contact maps are automatically smooth.
arxiv  

Equivariant birational geometry of quintic del Pezzo surface [PDF]

open access: yes, 2018
In this paper we prove that there are exactly two $G$-minimal surfaces which are $G$-birational to the quintic del Pezzo surface, where $G \cong C_5 \rtimes C_4$. These surfaces are the quintic del Pezzo surface itself and the surface $\mathbb{P}^1 \times \mathbb{P}^1$.
arxiv   +1 more source

Influence of a Hydrogen Addition to the Inert Gas and Subsequent Heat Treatments on the Microstructure and Mechanical Properties of Magnesium WE43 Fabricated by PBF‐LB/M

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates optimal processing conditions for the laser‐based powder bed fusion of WE43. To limit the interaction with remaining oxygen, a 3 vol% hydrogen admixture to the inert gas is investigated. Furthermore, heat treatments are investigated in the range of 250–350 °C for 48 h.
Arvid Abel   +9 more
wiley   +1 more source

Jonas Paulauskas

open access: yesBaltistica, 2011
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openaire   +2 more sources

The Nambu-Jona-Lasinio model with staggered fermions [PDF]

open access: yesNucl.Phys.Proc.Suppl.34:655-660,1994, 1994
We investigate the neighbourhood of the chiral phase transition in a lattice Nambu--Jona-Lasinio model, using both Monte Carlo methods and lattice Schwinger-Dyson equations.
arxiv   +1 more source

Tailoring Hole‐Blocking Layers Enables a Versatile Approach for Fast Photomultiplication‐Type Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates the role of hole‐blocking layers (HBLs), particularly the combination of two HBLs in photomultiplication‐type organic photodetectors (PM‐OPDs), which results in high gain and record‐fast response. The proposed HBL strategy also allows for the use of photoactive layer with balanced donor–acceptor stoichiometry, which can be ...
Awais Sarwar   +7 more
wiley   +1 more source

Multi seasonal discrete time risk model revisited [PDF]

open access: yesarXiv, 2022
In this work we set up the distribution function of $\mathcal{M}:=\sup_{n\geqslant1}\sum_{i=1}^{n}{(Z_i-1)}$, where the random walk $\sum_{i=1}^{n}Z_i, n\in\mathbb{N},$ is generated by $N$ periodically occurring distributions and the integer-valued and non-negative random variables $Z_1,\,Z_2,\,\ldots$ are independent.
arxiv  

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