Search results for " Composition"
showing 10 items of 1437 documents
The enrichment ratio of atomic contacts in crystals, an indicator derived from the Hirshfeld surface analysis
2014
An enrichment ratio is derived from the decomposition of the crystal contact surface between pairs of interacting chemical species. The propensity of different contact types to form is investigated.
NOx selective catalytic reduction at high temperatures with mixed oxides derived from layered double hydroxides
2012
[EN] Mixed oxides derived from layered double hydroxides (LDHs) have been investigated as potential catalysts for the NOx removal at high temperatures. The best results were obtained with Co–Al mixed oxides derived from LDHs that are active at 750 ◦C in the presence of oxygen and water. These catalysts could reduce or/and decompose the NOx formed in the dense phase of the FCC regenerator, being deactivated at oxygen concentrations higher than 1.5%. Nevertheless this deactivation is not permanent and they would be regenerated after reduction with hydrogen at 530 ◦C. The influence of the layered double hydroxides (LDHs) preparation method on the catalyst activity was studied, observing that t…
Organic solvent-soluble contents of nickel and cobalt in some algae
1990
In pursuit of our work on metal contents of lipid fractions isolated from plant material, we now show by means of highly sensitive analytical methods that nickel and cobalt are also present in organic extracts of algae in detectable amounts
Analysis of Prey Composition in Eurasian Reed Warblers' Acrocephalus scirpaceus Droppings at Four Breeding Sites in Italy
2022
Our aim was to investigate the among-populations diversity of prey composition in Eurasian Reed Warblers’ diets via their droppings, both to assess the ecological validity of this sampling method and to test whether the prey species most abundant in fecal samples were also the most present in the Italian study site. We collected fecal samples at four sites throughout Italy, for a total of 144 samples. Within reedbeds, the breeding habitat of the Eurasian Reed Warbler, we also collected arthropods by carrying out entomological sweepings at one of the study sites. Within the fecal samples, we identified dozens of prey species, belonging mainly to Araneae, Coleoptera, Diptera, Hymenoptera and …
Effect of legume grains as dietary protein source on the quality of organic lamb meat
2011
Somatosensory change detection in young healthy twin males
2013
Comparison of breast milk composition among lactating women in Latvia
2016
Abstract Although benefits of breast-feeding have been known for a long time and breast milk is considered as ideal nutrition for infants, the composition of breast milk is still being studied, since breast milk differs among mothers and populations, as well as during different times of lactation. Further, no study has been performed among lactating women in Latvia during recent years. The objective of the study was to determine the breast milk composition and influencing factors among lactating women in Latvia in different lactation periods, as well as to compare the results with data from other countries. Fifty breast milk samples were obtained from 44 mothers (on the 5th-7th and 11th-28t…
Global and local stressors on community succession in the Mediterranean intertidal zone
Architetture all'ombra del vulcano: il comprensorio etneo in età moderna. Architecture in the Shadow of the Volcano: the Etna Region in the Early Mod…
2017
Tra le molteplici declinazioni che investono il rapporto architettura natura un caso particolarmente pregnante è quello dei contesti vulcanici, tanto per le implicazioni che riguardano la ricerca estetica e gli aspetti visivi, quanto la costruzione e la composizione materica degli edifici realizzati in tali contesti. La fascinazione suscitata dalle eruzioni vulcaniche attraverso i secoli ha certamente contribuito alla persistenza di miti e alla formazione di un immaginario collettivo, fino alla costruzione di identità locali radicate in territori fortemente caratterizzati, con significativi riflessi anche nella sfera architettonica. Per altro verso, la disponibilità di un’ampia gamma di mat…
The Eminent French Chemist Claude-Louis Berthollet (1748-1822) in the Literature between the 19th and 21st Century
2020
Claude-Louis Berthollet (1748-1822) was one of the greatest French chemists of the eighteenth and the first 20 years of the nineteenth century. His life and scientific achievements were described in the literature published between the 19th and 21st centuries in different countries. The purpose of this article was to familiarize readers with the important events in the life of C.-L. Berthollet and his research activities, in particular some of his experimental research results, as well as his selected publications. In addition, the names of authors of biographies or biographical notes about Claude-Louis Berthollet, published in 1823-2018 were presented.