Results 41 to 50 of about 21,010,748 (236)

Assembly of Functionalized Organic Fragments via Reductive Activation and (Cross)‐Coupling of C2H4, CO, CO2 and/or H2 Using a Magnesium‐Dinitrogen Complex

open access: yesAngewandte Chemie, Volume 137, Issue 19, May 5, 2025.
A dimagnesium/dipotassium complex of N2 acts as a “masked” source of a dimagnesium(I) diradical in formal reductive coupling and cross‐coupling reactions involving various combinations of the simple gaseous small molecules, C2H4, CO, CO2, and H2. A range of more complex “value‐added” organic fragments have been accessed from these processes.
Dat T. Nguyen   +4 more
wiley   +2 more sources

Correlación entre diferentes contaminantes atmosféricos de la Ciudad de México y el Área Metropolitana

open access: yesCiencia Ergo Sum, 2020
Se lleva a cabo un estudio de correlación estadística entre datos numéricos correspondientes a la concentración de las partículas suspendidas y a la concentración de gases contaminantes que son obtenidos de las mediciones registradas en la base de datos ...
Israel Gutiérrez González   +3 more
doaj   +1 more source

Co-infection with Onchocerca volvulus and Loa loa microfilariae in central Cameroon: are these two species interacting? [PDF]

open access: yes, 2006
Ivermectin treatment may induce severe adverse reactions in some individuals heavily infected with Loa loa. This hampers the implementation of mass ivermectin treatment against onchocerciasis in areas where Onchocerca volvulus and L.
Basáñez, M-G   +6 more
core   +1 more source

CO2 emissions from cities: Direct flux measurements versus the indirect budget approach

open access: yesMeteorologische Zeitschrift, 2019
Many bigger cities establish climate protection plans by employing emission inventories based on indirect budget approaches. However, the emission fluxes of CO2 from cities can also be directly measured using the eddy covariance technique, which is a ...
Heta Meyer   +3 more
doaj   +1 more source

Biomass combustion emissions

open access: yesResearch in Agricultural Engineering, 2016
The paper deals with gaseous emissions generated in biomass combustion in water boilers. It provides results of analyses of gaseous emissions and boiler efficiency in combustion of branches of apple trees from spring pruning, spruce cuttings and corn ...
V. Kažimírová, R. Opáth
doaj   +1 more source

ProteomeXchange provides globally co-ordinated proteomics data submission and dissemination

open access: yesNature Biotechnology, 2014
223 12. Li, G.-Z. et al. Proteomics 9, 1696–1719 (2009). 13. Blackburn, K., Mbeunkui, F., Mitra, S.K., Mentzel, T. & Goshe, M.B. J. Proteome Res. 9, 3621–3637 (2010). 14. Huang, X. et al. Anal. Chem. 83, 6971–6979 (2011). 15. Geiger, T., Cox, J.
J. Vizcaíno   +24 more
semanticscholar   +1 more source

Carbon Isotope Separation by Chromatography at Low Temperature

open access: yesHe huaxue yu fangshe huaxue
As an excellent moderator and reflector material, graphite are widely used in nuclear reactors. Over the past few decades, accompanied by the decommission of nuclear reactors, the world has accumulated over 250000 tons of irradiated graphite, which are ...
Yu-jia XIAO   +5 more
doaj   +1 more source

Magnetic Nanoparticles: Co@SiO2, Co@Au and Co@Pt

open access: yesEclética Química Journal, 2017
Nanotechnology is the understanding and control f matter at dimensions of roughly 1 – 100 nm. At the nanoscale, the properties like electrical conductivity and mechanical strength are not the same as the materials with particles in dimensions much more than 100 nm. The electronic structure changes dramatically too.
Sargentelli, Vagner   +1 more
openaire   +4 more sources

Gaseous mediators (H2S, NO and CO) a new approach in gastrointestinal protection

open access: yesMexican Journal of Medical Research ICSA, 2023
Gastrointestinal damage is generated by a wide range of harmful agents, and is the result of the activation of inflammatory, oxidant and cytotoxic mechanisms, that together overwhelm the “mucosa defense” of the gastrointestinal (GI) tract.
Elizabeth Arlen Pineda-Peña   +1 more
doaj   +1 more source

Model calculations of doubly closed shell nuclei in CBF theory III. j-j coupling and isospin dependence

open access: yes, 1996
Correlated Basis Function theory and Fermi Hypernetted Chain technique are extended to study medium-heavy, doubly closed shell nuclei in j-j coupling scheme, with different single particle wave functions for protons and neutrons and isospin dependent two-
A. Fabrocini   +24 more
core   +1 more source

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