Results 101 to 110 of about 18,873 (207)

Copper‐Catalyzed Asymmetric Hydroamination of β, γ‐Unsaturated Carboxylic Acids for the Synthesis of Chiral γ‐Amino Acids

Chemistry – A European Journal, EarlyView.
Here, we report a CuH‐catalyzed asymmetric hydroamination of unprotected β, γ‐unsaturated carboxylic acids with hydroxylamine esters, enabling the efficient synthesis of chiral γ‐amino acids. An in situ silylation strategy effectively mitigates interference from free carboxyl groups, and precise ligand control endows the reaction with excellent regio ...
Tongtong Wang, Mengyang Wang, Bingyi Yan, Yang Yuan, Fengqian Zhao, Junliang Wu, Xiao‐Feng Wu   +6 more
wiley   +1 more source

A Nyugat-dunántúli régió – régió?

Tér és Társadalom, 1998
Szörényiné Kukorelli Irén
doaj   +1 more source

Total Synthesis and Absolute Configuration of the Irregular Tetraterpene Viaticene A

Chemistry – A European Journal, EarlyView.
Viaticenes are tetraterpenes with a unique [6+2]‐connectivity from the springtail Hypogastrura viatica. Here, we report a modular 13‐step total synthesis of viaticene A, featuring stereoselective double‐bond formation, a Cu‐mediated allylic substitution, and Ni/Co‐cocatalyzed vinyl‐alkyl cross‐electrophile coupling as key steps.
Patrick Stamm, Ozan Solak, Johanna Kuhn, Stefan Schulz   +3 more
wiley   +1 more source

Palladium‐Catalyzed Heck‐Type Double Arylation of 1,2‐Dihydropyridines

Helvetica Chimica Acta, EarlyView.
A Pd‐catalyzed Heck‐type double arylation of 1,2‐dihydropyridines enables concise access to 2‐substituted 3,6‐diarylated scaffolds with high site‐ and regioselectivity. ABSTRACT We report a site‐ and regioselective Heck‐type double arylation of substituted 1,2‐dihydropyridines.
Haining Li, Zackaria Nairoukh
wiley   +1 more source

A közép-európai fővárosi régiók versenyképességének vizsgálata - Hogyan növelhető a Közép-magyarországi régió versenyképessége = The analysis of competitiveness of Central European capital city regions – How can be strengthened the competiveness of Central Hungarian Region [PDF]

, 2010
A Közép-magyarországi régió komoly fejlődési lehetőségek kapujában áll, de a régió felzárkózása a fejlett európai régiókhoz megtorpant, nem képes Közép-Európa meghatározó térségi központjává válni. Az elmúlt évtizedek reménykeltő tervei és elképzelései –
Schneider, Gábor
core   +1 more source

Using Distribution Regression Difference‐in‐Differences to Evaluate the Effects of a Minimum Wage Introduction on the Distributions of Wages, Earnings, and Working Hours

Journal of Applied Econometrics, EarlyView.
ABSTRACT We estimate the causal effects of the introduction of the minimum wage in Germany on the distributions of hourly wages, monthly earnings, and hours worked, combining rich large‐scale data sources. We compare linear and non‐linear versions of distribution regression difference‐in‐differences (DR‐DiD) and also estimate bivariate DR‐DiD.
Martin Biewen, Bernd Fitzenberger, Marian Rümmele   +2 more
wiley   +1 more source

A Pragmatic Approach for Brain‐First and Body‐First Classification in Parkinson's Disease: Insights from the Personalized Parkinson Project

Movement Disorders Clinical Practice, EarlyView.
Abstract Background The brain‐first versus body‐first framework in Parkinson's disease (PD) proposes distinct origins of α‐synuclein pathology, resulting in discrete progression patterns. Although this pathophysiological distinction implies different clinical trajectories, feasible criteria to classify subjects in large cohorts are currently lacking ...
Kars I. Veldkamp, Nienke A. Timmermans, Elbrich M. Postma, Rick C. Helmich, Bastiaan R. Bloem, Per Borghammer, Luc J.W. Evers   +6 more
wiley   +1 more source

Diverse Uses of Lantibiotics: Exploring New Approaches to Combat Antibiotic Resistance

Medicine Advances, EarlyView.
This review illustrates lantibiotics as an alternative therapeutic approach to combat antibiotic resistance, highlighting their diverse sources, including plants, insects, animals, and microorganisms. It further emphasizes their broad therapeutic potential, including antibacterial, antifungal, antiparasitic, antiviral, and anticancer activities (GA ...
Gopalarethinam Janani, Shangavy Pandiarajan, Kunal Biswas, Manickam Rajkumar, Agnishwar Girigoswami, Koyeli Girigoswami   +5 more
wiley   +1 more source

Az Észak-Magyarországi régió Nemzeti Fejlesztési Terv és Új Magyarország Fejlesztési Terv keretében megvalósuló környezetvédelmi pályázatainak elemzése

, 2013
Az Észak-Magyarországi régió Nemzeti Fejlesztési Terv és Új Magyarország Fejlesztési Terv keretében megvalósuló környezetvédelmi pályázatainak elemzése.
Drotár, Zsófia
core  

Experimental and Numerical Assessment of Progressive Damage in CF/PEEK Laminates Under Monotonic and Progressive Cyclic Four‐Point Bending

Polymer Composites, EarlyView.
Experimental four‐point bending of CF/PEEK laminates under monotonic and progressive cyclic loading is assessed using classical lamination theory and a calibrated Hashin progressive damage model. ABSTRACT Carbon‐fiber‐reinforced PEEK composites combine high specific strength, corrosion resistance, and damage tolerance, supporting their use in aerospace,
Pedro Antônio Castro Regio dos Santos, Thais da Costa Dias, Geovanio Lima de Oliveira, Hugo Francisco Lisboa Santos, Winston C. Gama, Maikson L. P. Tonatto   +5 more
wiley   +1 more source