Results 81 to 90 of about 78,379 (305)

Asymmetric Synthesis of the Tetrahydropyran Ring, C32—C38 Fragment, of Phorboxazoles. [PDF]

open access: yesChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Yasmin, Brinkmann   +4 more
openaire   +2 more sources

[my]-Bis(diphenylphosphanyl)borato-[kappa]2P:P'-bis[dicarbonyl([eta]5-cyclopentadienyl)iron(II)] tetrachloridoferrate(III) chloroform solvate [PDF]

open access: yes, 2008
The title compound, [Fe2(C5H5)2(C24H22BP2)(CO)4][FeCl4]·CHCl3, is an oxidation product of CpFe(CO)2PPh2BH3. One pair of phenyl rings attached to the two different P atoms are almost parallel, as are the other pair [dihedral angles = 8.7 (5) and 8.9 (5)°].
Bolte, Michael   +2 more
core  

Selective Optical Properties of Cement for Enhanced Radiative Cooling and Energy‐Efficient Construction Materials

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cement phases are good materials for radiative cooling thanks to the selective emissivity in IR ATW. Cement powders have high reflectance of solar radiation which reduces the thermal losses. The onset of the absorption curves is defined by bound excitons. Sulfates have higher radiated powers and reflectance than calcium silicates.
Jozef Janovec   +3 more
wiley   +1 more source

Unique thermal behavior of sphingomyelin species with nonhydroxy and 2-hydroxy very-long-chain (C28-C32) PUFAs[S]

open access: yesJournal of Lipid Research, 2013
In rat germ cells and spermatozoa, sphingomyelin (SM) contains molecular species with nonhydroxy (n) and 2-hydroxy (h) very-long-chain polyunsaturated fatty acids (V), the most abundant being SMs with (n- and h-) 28:4n-6, 30:5n-6, and 32:5n-6 as acyl ...
D. A. Peñalva   +4 more
semanticscholar   +1 more source

Dinuclear Rhodium(I)–N‐Heterocyclic Carbene Complexes as Alkyne Hydropyridonation Catalysts

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Catalyst Improvement by NHC tuning: A series of new RhI–NHC dinuclear complexes has been revealed as efficient alkyne hydropyridonation catalysts. 333053IMes complex displays the highest reactivity of the series, suggesting that a moderate steric demand combined with balanced σ‐donation facilitates precatalyst activation and substrate exchange.
Belinda Español‐Sánchez   +7 more
wiley   +1 more source

The Carbon Number‐specific Impact of Mineral Oil Saturated Hydrocarbons on Inducing Colonic Inflammation in Female and Male Fischer 344 Rats

open access: yesFood Frontiers, EarlyView.
MOSH‐induced colonic alterations and sex‐specific metabolic pathways in female and male F344 rats. ABSTRACT This study investigated the effects of mineral oil saturated hydrocarbon (MOSH) sub‐fractions (C20‐30 and C30‐50) on the colon of male and female F344 rats and the underlying mechanisms.
Lin Zhu   +6 more
wiley   +1 more source

Alternating trilinear forms on a 9-dimensional space and degenerations of (3,3)-polarized Abelian surfaces

open access: yes, 2014
We give a detailed analysis of the semisimple elements, in the sense of Vinberg, of the third exterior power of a 9-dimensional vector space over an algebraically closed field of characteristic different from 2 and 3.
Gruson, Laurent, Sam, Steven V
core   +2 more sources

Cancer pattern in Bhutan (2014–2022): Findings from population‐based cancer registry—A pathway to monitor cancer control activities

open access: yesInternational Journal of Cancer, EarlyView.
What's New? The establishment in 2014 of the population‐based cancer registry (PBCR) of Bhutan created new opportunities for understanding national cancer trends, which previously were anticipated from data in neighbouring countries. This study presents the first nine‐year summary of cancer patterns in Bhutan, derived from PBCR data. From 2014 to 2022,
Phub Tshering   +9 more
wiley   +1 more source

Metcalfe's law and log-period power laws in the cryptocurrencies market

open access: yesEconomics: Journal Articles, 2019
In this paper the authors investigate the statistical properties of some cryptocurrencies by using three layers of analysis: alpha-stable distributions, Metcalfe’s law and the bubble behaviour through the LPPL modelling.
Pele Daniel Traian   +1 more
doaj   +1 more source

Is the effect of public debt on inflation symmetric or asymmetric? Evidence from the Gambia

open access: yesCroatian Review of Economic, Business and Social Statistics, 2022
Several studies have identified the impact of total public debt on inflation. These studies are based on the assumption of a symmetric relationship between these variables.
Aimola Akingbade U.   +1 more
doaj   +1 more source

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