Results 181 to 190 of about 2,974,134 (411)

Source areas of the Eastern Ebro Valley loess (NE Iberian Peninsula): Heavy mineral composition as a provenance indicator

open access: yesEarth Surface Processes and Landforms, Volume 47, Issue 15, Page 3611-3628, December 2022., 2022
The loess provenance areas of the Ebro and Móra basins are mainly the fluvial terraces of the Middle and Lower Ebro River, respectively, according to the analyses of very heavy minerals and particle size. The wind transport distances are relatively short (<100 km).
José M. Plata   +7 more
wiley   +1 more source

Editorial: 100 years of polarography

open access: yes, 2022
Electrochemical Science Advances, Volume 2, Issue 6, December 2022.
Jiří Ludvík
wiley   +1 more source

"Globalization and Inequality Past and Present" [PDF]

open access: yes
The late 19th and the late 20th century shared more than simply globalization and convergence. Globalization also seems to have had the same impact on income distribution: in the late 19th century, inequality rose in rich countries and fell in poor ...
Jeffrey G. Williamson
core  

21st Century…19th Century…6th Century BC Skills [PDF]

open access: yes, 2013
During July I spent some time in Ireland; in the beautiful, south-west corner that is Kerry. Whilst there, I was reading a bit of the local history and came across some quite mind-boggling technology.
Kimbell, Richard
core   +2 more sources

Odd‐even Effects Leading to Alternating Polymerization and Macrocyclization in Nitroaldol Reaction Systems

open access: yesChemistry – A European Journal, Accepted Article.
Alternating macrocyclization and polymerization was observed in dynamic nitroaldol reaction systems. The reaction of an aromatic dialdehyde reacting with linear α,ω‐dinitroalkanes with even numbers of carbon atoms favored the formation of lowellane macrocycles, while the reactions involving dinitrocompounds consisted of odd numbers of carbon atoms ...
Yunchuan Qi   +3 more
wiley   +1 more source

The spiritual life in Algeria during the 19th century A.D

open access: yesCogent Arts & Humanities
This article investigates the development of the contemporary Algerian culture with its religious and intellectual movements and schools of thought.
Khireddine Youssef Chatra, Abbas Ramdani
doaj   +1 more source

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