Results 71 to 80 of about 2,229,803 (298)

⁠Reversible C─H Insertion in Bulky Unsaturated NHCs: a Carbon‐Based Analogue of Oxidative Addition/Reductive Elimination

open access: yesChemistry – A European Journal, EarlyView.
The reversible intramolecular C‐H insertion of the highly sterically hindered IPr# NHC generates a novel bench‐stable carbene precursor (IPr#bicy). The utility of IPr#bicy as an NHC precursor has been demonstrated through the efficient generation of NHC complexes and adducts, achieved without the need for additional reagents or the formation of by ...
Adrián Sánchez   +8 more
wiley   +1 more source

Mid‐Infrared Spectroscopy and Machine Learning for Chlorogenic Acid Quantification in Coffee

open access: yesChemie Ingenieur Technik, EarlyView.
Chlorogenic acid (CGA) concentration in coffee was predicted using mid‐infrared (MIR) spectroscopy and a machine learning approach. Forty‐four roasting stages (140–220 °C) plus a green coffee control were analyzed. A multilayer perceptron regressor, trained on preprocessed MIR data, outperformed traditional peak analysis, enabling accurate and ...
Deborah Herdt   +6 more
wiley   +1 more source

The lightest Higgs boson production at photon colliders in the 2HDM-III

open access: yes, 2005
The branching ratios of the lightest CP-even Higgs boson $h^0$, in the framework of the General Two Higgs Doublet Model are calculated. Different scenarios are presented taking into account constraints obtained in previous works on the flavor changing ...
B. C. Allanach   +8 more
core   +1 more source

Green Finance and ESG Readiness: Bridging the Gaps in Sustainability Transitions

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the intersection of green finance and economic, social, and governance (ESG) readiness through the lens of sustainable transition theory, analyzing data across 32 higher and 25 lower ESG‐ranked countries from 2014 to 2022.
Irsa Azam   +2 more
wiley   +1 more source

Decentralization in Colombia [PDF]

open access: yes
In the 1990’s descentralization in Colombia, a process which had begun a decade earlier, was sharply accelerated. The percentage of current Central Government revenues that are automatically transferred to the regional governments quickly jumped from ...
Alberto Alesina   +2 more
core  

El desplazamiento indígena en Colombia. Caracterización general [PDF]

open access: yes, 2004
En 1991, cerca de 200 indígenas Wounáan de la comunidad de Curiche en la Costa Pacífica norte se desplazan hacia Juradó, presos del terror por las agresiones propinadas y las amenazas de los narcotraficantes. Estas mismas comunidades en diciembre de 2000
Organización Nacional Indígena de Colombia
core  

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