Results 11 to 20 of about 1,221,972 (281)

Recreation of the periodic table with an unsupervised machine learning algorithm [PDF]

open access: yesScientific Reports, 2021
In 1869, the first draft of the periodic table was published by Russian chemist Dmitri Mendeleev. In terms of data science, his achievement can be viewed as a successful example of feature embedding based on human cognition: chemical properties of all ...
Minoru Kusaba   +4 more
doaj   +2 more sources

Glass: Home of the Periodic Table [PDF]

open access: yesFrontiers in Chemistry, 2020
Glass is the most common material around us, and humankind uses it every day for more than 5000 years. However, from the chemical point of view, glass is the only material that could represent almost all elements of the Periodic Table inside itself ...
Georgiy Shakhgildyan   +4 more
doaj   +2 more sources

The Bioinorganic Periodic Table

open access: yesCHIMIA, 2019
Life depends on metals. While carbon, in terms of abundance and versatility, is considered THE element of life, the vast variety and diversity of the chemistry taking place in living organisms could not be achieved without metal ions.
Eva Freisinger, Roland K.O. Sigel
doaj   +1 more source

The St Andrews Periodic Table Wallchart and its Use in Teaching

open access: yesSubstantia, 2019
An early surviving copy of a periodic table of the elements wallchart is described and it is compared with other early versions of the periodic table. The status of chemistry teaching in St Andrews at the time and particularly the lectures of Professor ...
R. Alan Aitken, M. Pilar Gil
doaj   +1 more source

Periodic correlation structures in bacterial and archaeal complete genomes [PDF]

open access: yes, 2013
The periodic transference of nucleotide strings in bacterial and archaeal complete genomes is investigated by using the metric representation and the recurrence plot method.
Wu, Zuo-Bing
core   +1 more source

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

The Mendeleev-Meyer force project [PDF]

open access: yes, 2016
Here we present the Mendeleev–Meyer Force Project which aims at tabulating all materials and substances in a fashion similar to the periodic table. The goal is to group and tabulate substances using nanoscale force footprints rather than atomic number or
Amadei, Carlo Alberto   +9 more
core   +4 more sources

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  

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

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