Results 11 to 20 of about 322 (154)
Copper-Catalyzed C(3+1) copolymerization of propargyl carbonates and aryldiazomethanes
Controlling the composition and sequence during diazo copolymerization with vinyl or acetylenic monomers is highly desired yet challenging. Here we report a new base-metal-catalysis strategy to address this problem via tandem coupling/polymerization.
Hao-Ze Su, Bin Wu, Jianbo Wang, Rong Zhu
doaj +1 more source
The effect of size and productivity on borrowing discouragement for small firms in Colombia
I estimate the effect micro firms’ size and productivity have on the probability of becoming a discouraged borrower: firms that do not use credit from the formal financial system despite needing it.
Oscar Jaulín-Méndez
doaj +1 more source
O objetivo do experimento foi estudar o perfil de n-alcanos em espécies de gramíneas (Brachiaria brizantha, Cynodon dactylon e Panicum maximum) e leguminosas (Arachis pintoi e Glycine wightii).
Cristiano Côrtes +5 more
doaj +1 more source
In this study, the tribological properties of Al–15Mg2Si (AC), Al–15Mg2Si–3TiB2–TiAl3 (C31), and Al–15Mg2Si–5TiB2–4TiAl3 (C54) in-situ composites were evaluated.
Mohammad Rasool Moazami +4 more
doaj +1 more source
Synthesis of C7−C31 fragment of (−)-cryptocaryol A [PDF]
The aqueous Barbier reaction between glyoxal (3) and allyl bromide (97%), followed by an oxidative cleavage by NaIO4, provided aldehyde 4 (Scheme 1). The protection of alcohol 5 with PMBtrichloroacetimidate (PMB-TCA), followed by a Wacker oxidation, led to the formation of methylketone 6 in 53% yield for 2 steps. The aldehyde 8 was prepared under Swern
Paula K. Kuroishi +2 more
openaire +1 more source
The Spatial Fay-Herriot Model in Poverty Estimation
Counteracting poverty is one of the objectives of the European Commission clearly emphasized in the Europe 2020 strategy. Conducting appropriate social policy requires knowledge of the extent of this phenomenon.
Wawrowski Łukasz
doaj +1 more source
Correlation between profitability and transfer activity in European football
The transfer market of European football can be classified as a system. In this system, the effectiveness of participant teams can depend on the activity in players’ transfers.
Fürész Diána Ivett
doaj +1 more source
Background: One of the goals of Russia economy is to increase SMEs specific weight in GDP per 100% by 2030.
Pinkovetskaia Iuliia, Slepova Vladislava
doaj +1 more source
Introducción: Esta investigación examina la relación entre el uso de energía (UEN) y la formación bruta de capital (FBC) fijo con la tasa de crecimiento del producto interno bruto (PIB) en 73 países.
Héctor F. Salazar-Núñez +1 more
doaj +1 more source
Regression Analysis of Influencing Factors of Public Education in Hungary
The education system in Hungary has been greatly criticized in the last decades regarding the standards and quality of education and its ignorance towards labour market demands. The present study focuses on factors affecting the quality of education. The
Vér Gáspár Katalin +2 more
doaj +1 more source

