Results 11 to 20 of about 73,558 (231)

[μ-3,3′-Bis(tri­hydro­bor­yl)[3]ferroceno­phane]bis­(chlorido­zirconocene) [PDF]

open access: yes, 2013
The title compound, [FeZr2(C5H5)4Cl2(C13H18B2)], is a heteronuclear complex that consists of a [3]ferrocenophane moiety substituted at each cyclo­penta­dienyl (Cp) ring by a BH3 group; the BH3 group is bonded via two H atoms to the Zr atom of the ...
Bolte, Michael   +3 more
core   +2 more sources

Consumo e digestibilidade da matéria seca de fenos de braquiária decumbens e amendoim forrageiro em ovinos estimados por meio de n-alcanos Use of n-alkanes to estimate intake and digestibility of signalgrass and forage peanut in sheep

open access: yesRevista Brasileira de Zootecnia, 2007
O experimento foi realizado com os objetivos de avaliar a técnica de n-alcanos para estimar o consumo e a digestibilidade da MS em ovinos e definir a estratégia de coleta de fezes e os alcanos internos a serem utilizados no cálculos.
Nelson Massaru Fukumoto   +6 more
doaj   +1 more source

Laminated Beam Analysis by Polynomial, rigonometric, Exponential and Zig-Zag Theories [PDF]

open access: yes, 2013
A number of refined beam theories are discussed in this paper. These theories were obtained by expanding the unknown displacement variables over the beam section axes by adopting Taylor's polynomials, trigonometric series, exponential, hyperbolic and zig ...
Carrera, Erasmo   +2 more
core   +1 more source

The Correlation Between CO2 Emissions and GDP in a Sustainable Development Framework Using Kuznets Environment Curve

open access: yesStudia Universitatis Vasile Goldis Arad, Seria Stiinte Economice, 2020
After 1990, the problem of finding econometric models to assess the influence of economic development on the environment becomes a global goal, a central element of regional, national and Community policies.
Cosma Ioana Gabriela   +4 more
doaj   +1 more source

Derivative pricing for a multi-curve extension of the Gaussian, exponentially quadratic short rate model [PDF]

open access: yes, 2016
The recent financial crisis has led to so-called multi-curve models for the term structure. Here we study a multi-curve extension of short rate models where, in addition to the short rate itself, we introduce short rate spreads.
A Gombani   +13 more
core   +2 more sources

Marcasite at the Permian‐Triassic Transition

open access: yesGeophysical Monograph Series, Page 377-399., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva   +7 more
wiley  

+1 more source

Education and Economic Growth in Developing Countries: Empirical Evidence from GMM Estimators for Dynamic Panel Data

open access: yesEconomics and Business, 2021
The paper aims at studying the effect of education measured by enrolment ratios in secondary and higher education on economic growth measured by the rate of GDP growth in a sample of 40 developing countries during the period from 2002 to 2016 using the ...
Sebki Wafa
doaj   +1 more source

[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)°].
Franz Dornhaus   +5 more
core   +1 more source

Panel Estimation of the Environmental Kuznets Curve for CO2 Emissions and Ecological Footprint: Environmental Sustainability in Developing Countries

open access: yesFolia Oeconomica Stetinensia, 2022
Research background: The relationship between the economy and the environment is one of the most frequently encountered issues recently. Today the issue of environmental sustainability is one of the problems faced by countries.
Konya Sevilay
doaj   +1 more source

4,4´-[4,4´-(Perfluoropropane-2,2-diyl)-bis(4,1-phenyleneoxy)]dianiline [PDF]

open access: yes, 2009
In the title compound, C27H20F6N2O2, the dihedral angles between the planes of the aromatic rings connected by the ether O atoms are 84.13 (8) and 75.06 (9)°. The crystal structure is stabilized by N-H...O and N-H...F hydrogen bonds.
Nawaz, Haq   +3 more
core   +2 more sources

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