Results 31 to 40 of about 2,543,179 (336)

Molecular Classification of Pesticides Including Persistent Organic Pollutants, Phenylurea and Sulphonylurea Herbicides

open access: yesMolecules, 2014
Pesticide residues in wine were analyzed by liquid chromatography–tandem mass spectrometry. Retentions are modelled by structure–property relationships.
Francisco Torrens, Gloria Castellano
doaj   +1 more source

Periodic table for topological bands with non-Hermitian symmetries [PDF]

open access: yesPhysical review B, 2018
Classifications of symmetry-protected topological (SPT) phases provide a framework to systematically understand the physical properties and potential applications of topological systems. While such classifications have been widely explored in the context
Hengyun Zhou, Jong Yeon Lee
semanticscholar   +1 more source

The Periodic Table in Croatia [PDF]

open access: yesKemija u Industriji, 2011
The Croatian (Yugoslav) Academy of Sciences and Arts was the first academy to elect D. I. Mendeleev as its honorary member (1882), whereas the periodic table of the elements has been taught regularly at the Zagreb University since 1888.
Raos, N.
doaj  

Thakur Periodic Table-Advance Periodic Table

open access: yes, 2022
New Periodic Table created by Krishna Niraj Thakur a class 11 Indian student in Academic Year 2021 ...
openaire   +1 more source

A nuclear periodic table [PDF]

open access: yesFoundations of Chemistry, 2020
AbstractThere has been plenty of empirical evidence which shows that the single-particle picture holds to a good approximation in atomic nuclei. In this picture, protons and neutrons move independently inside a mean-field potential generated by an interaction among the nucleons.
K. Hagino, Y. Maeno
openaire   +2 more sources

The Periodic Table and Kinetics?

open access: yesCHIMIA, 2019
Mendeleev in his first publication ordered the chemical elements following an apparent periodicity of properties such as atomic volume and valence. The reactivity of the elements was only studied systematically many years later.
Lothar Helm, André E. Merbach
doaj   +1 more source

From Permutation Patterns to the Periodic Table [PDF]

open access: yesریاضی و جامعه, 2023
(The above abstract has been extracted by the translator from the original article (L. Pudwell, From Permutation Patterns to the Periodic Table, Notices of the American Mathematical Society, 67 994–1001.))Abstract: Permutation patterns is a burgeoning ...
Saeid Alikhani, Maryam Safazadeh
doaj   +1 more source

Relativistic Heavy-Neighbor-Atom Effects on NMR Shifts: Concepts and Trends Across the Periodic Table.

open access: yesChemical Reviews, 2020
Chemical shifts present crucial information about an NMR spectrum. They show the influence of the chemical environment on the nuclei being probed. Relativistic effects caused by the presence of an atom of a heavy element in a compound can appreciably ...
Jan Vı Cha   +5 more
semanticscholar   +1 more source

Probing the (empirical) quantum structure embedded in the periodic table with an effective Bohr model

open access: yesQuímica Nova, 2013
The atomic shell structure can be observed by inspecting the experimental periodic properties of the Periodic Table. The (quantum) shell structure emerges from these properties and in this way quantum mechanics can be explicitly shown considering the ...
Wellington Nardin Favaro   +1 more
doaj   +3 more sources

The state of food composition databases: data attributes and FAIR data harmonization in the era of digital innovation

open access: yesFrontiers in Nutrition
IntroductionFood composition databases (FCDBs) are essential resources for characterizing, documenting, and advancing scientific understanding of food quality across the entire spectrum of edible biodiversity.
Sarah Brinkley   +21 more
doaj   +1 more source

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