Results 1 to 10 of about 4,131 (247)

POLYFUNCTIONALITY OF ENGLISH QUANTITATIVE WORDS

open access: yesGISAP:Philological Sciences, 2015
The article in question considers the functioning of quantitative units, their language and speech aspects. The iIntroduction is focused on the most significant items of the reports – definition of numerals, words of weight and measure, aims, methods of investigation, empiric materials applied, evolution modifications and perspectives of further study.
Olha Shumenko   +2 more
openaire   +1 more source

Tropical parabiotic ants: Highly unusual cuticular substances and low interspecific discrimination [PDF]

open access: yes, 2008
Background Associations between animal species require that at least one of the species recognizes its partner. Parabioses are associations of two ant species which co-inhabit the same nest.
Florian Menzel   +2 more
core   +2 more sources

ortho-Lithiation Reactions of O-(3,n-Dihalophenyl) N,N-Diethylcarbamates: Synthesis of Dihalosalicylamides and 2,3,n-Trihalophenol Derivatives [PDF]

open access: yes, 2016
New dihalosalicylamides and trihalophenol derivatives have been synthesized from easily available O-(3,n-dihalophenyl) N,N-diethylcarbamates by using a directed ortho-metalation (DoM) strategy.
Feberero, Claudia   +2 more
core   +1 more source

Anti-Inflammatory Properties of Dendrimers per se

open access: yesThe Scientific World Journal, 2011
Dendrimers are polybranched and polyfunctionalized tree-like polymers. Unlike linear polymers, they have perfectly defined structure and molecular weight, due to their iterative step-by-step synthesis.
Myriam Hayder   +4 more
doaj   +1 more source

MW-Assisted Synthesis of Eight New 6-Nitrilmethyl Pyrrolo[3,4-b]pyridin-5-Ones via a Domino Process: aza Diels–Alder/N-Acylation/Aromatization

open access: yesProceedings, 2019
An efficient Microwave (MW)-assisted synthesis of eight new 6-nitrilmethyl-pyrrolo[3,4-b]pyridin-5-ones via a domino process: aza Diels–Alder/N-acylation/aromatization (dehydration–decarboxylation) from their corresponding 2-aminonitrile ...
Manuel A. Rentería-Gómez   +4 more
doaj   +1 more source

A Post-Synthetic Modification Approach to Expand MIL-101-NH2 Functionalization

open access: yesChemistry
Considering the importance of organic functionalization of MOFs, we here report a simple, tunable and efficient one-step post-modification procedure for introducing amino and carboxylic groups into the mesoporous metal–organic framework Al- and Cr-MIL ...
Alain Vigroux   +5 more
doaj   +1 more source

Green and multi-component synthesis of polyfunctionalized pyrrole derivatives under solvent-free condition [PDF]

open access: yesشیمی کاربردی روز
In the present research, the design and synthesis of polyfunctionalized pyrrole derivatives using one-pot, multi-component reactions including aromatic aldehydes, ethyl acetoacetate, thiadiazole derivatives, and nitromethane in the presence of 3-sulfonic
Behjat Pouramiri
doaj   +1 more source

Microbial mat development and dolomite formation under pre-evaporitic conditions during the Atlantic in a temperate area: The Sarliève Lake (French Massif Central) [PDF]

open access: yes, 2011
International audienceThe Sarliève marsh in the Limagne plain, in the heart of the French Massif Central, functioned as an endorheic lake during the Late Glacial and the Early and Middle Holocene.
Bréhéret, Jean-Gabriel   +3 more
core   +4 more sources

Isotopic and biochemical composition of particulate organic matter in a shallow water estuary (Great Ouse, North Sea, England) [PDF]

open access: yes, 1993
The biogeochemistry of particulate organic matter was studied in the Great Ouse estuary draining to the North Sea embayement known as the Wash from March 1990 to January 1991.
Dennis, P.   +3 more
core   +1 more source

Michael Addition-Initiated Sequential Reactions from 1,3-Dicarbonyls for the Synthesis of Polycyclic Heterocycles

open access: yes, 2013
International audienceThis review aims to highlight the most significant recent developments on synthetic strategies involving consecutive, domino and multicomponent reactions featuring a Michael addition-initiating step for the synthesis of polycyclic ...
Bonne, Damien   +4 more
core   +3 more sources

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