Results 91 to 100 of about 349,221 (347)

Chiral Modification of the Tetrakis(pentafluorophenyl)borate Anion with Myrtanyl Groups [PDF]

open access: yes, 2019
The synthesis and characterization of chiral [B(C6F5)4]– derivatives bearing a myrtanyl group instead of a fluoro substituent in the para position are described.
Oestreich, Martin, Pommerening, Phillip
core   +1 more source

Jernets alder

open access: yesReligionsvidenskabeligt Tidsskrift, 1995
Samson, socalled "judge" and "nazarite", belongs to the same anti-heroic type as the legendary Amirani from Caucasus, masterly analyzd by George Charachidzé as a transformation of Prometheus. The two of them articulate a form of life which denies culture; their necessarily victorious enemies are women and blacksmiths.
openaire   +3 more sources

Phasentrennung von Nukleinsäuren: Mechanismen, Eigenschaften und Anwendungen

open access: yesAngewandte Chemie, EarlyView.
Jüngste Entdeckungen zeigen, dass einzelsträngige langkettige Nukleinsäuren temperaturinduziert phasentrennen und dabei mikrometergroße Kondensate bilden. Dieser Minireview fasst das aktuelle mechanistische Verständnis dieses Phänomens zusammen, beschreibt Strategien zur gezielten Kontrolle der physikalischen und chemischen Eigenschaften der Kondensate
Weixiang Chen   +2 more
wiley   +1 more source

On the narrative form of simulations. [PDF]

open access: yes, 2017
Understanding complex physical systems through the use of simulations often takes on a narrative character. That is, scientists using simulations seek an understanding of processes occurring in time by generating them from a dynamic model, thereby ...
Wise, M Norton
core   +1 more source

Bis(4-(3,4-dimethylenepyrrolidyl)-phenyl) methane [PDF]

open access: yes, 1989
It is the primary object of the present invention to prepare high temperature polymeric materials, especially linear aromatic polyimides, which maintain their integrity and toughness during long exposure times at elevated temperatures.
Ottenbrite, Raphael M.
core   +2 more sources

Synthesis and Diels-Alder Reactions of 1,2-Dimethylene- and 1,2,9,10-Tetramethylene-[2.2]paracyclophane: New Routes to Bridge-Anellated[2.2]Paracyclophanedienes [PDF]

open access: yes, 1992
The title compounds 8 and 1 have been synthesized in three steps each from 1,2-dibromo[2.2]paracyclophan-1-ene (2) and 1,2,9,10-tetrabromo[2.2]paracyclophane-1,9-diene (4), respectively. Copper-mediated coupling of vinyl bromides 2 and 4 with methyl- and
Bailey   +28 more
core   +2 more sources

Cycloadditions in mixed aqueous solvents: the role of the water concentration [PDF]

open access: yes, 2005
We examined the kinetics of a series of cycloaddition reactions in mixtures of water with methanol, acetonitrile and poly(ethylene glycol) (MW 1000). The reactions include the Diels–Alder (DA) reaction between cyclopentadiene and N-n-butylmaleimide or ...
Abraham   +66 more
core   +3 more sources

Commodity risk assessment of Alnus cordata and Alnus glutinosa specimen trees from the UK

open access: yesEFSA Journal
The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘high risk plants, plant products and other objects’.
EFSA Panel on Plant Health (PLH)   +35 more
doaj   +1 more source

Epigenetic regulation of key developmental genes during early mouse development

open access: yes, 2010
In undifferentiated ES cells, many Polycomb Repressive Complex 2 (PRC2) target genes carry not only repressive H3K27me3 but are also enriched for conventional indicators of active chromatin including methylated H3K4.
Alder, Olivia A., Alder, Olivia A.
core   +1 more source

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