1 THE MAGIC NUMBER

2021 ◽  
pp. 9-20
Keyword(s):  
2021 ◽  
Author(s):  
Mostefa Kara ◽  
Abdelkader Laouid ◽  
Mohammed Amine Yagoub ◽  
Reinhardt Euler ◽  
Saci Medileh ◽  
...  

2021 ◽  
pp. 1-14
Author(s):  
Manon Castelle ◽  
David Bourgarit ◽  
Geneviève Bresc-Bautier ◽  
Lise Cadot-Leroux
Keyword(s):  

1999 ◽  
Vol 23 (1) ◽  
pp. 52-53
Author(s):  
Mansour Zahedi ◽  
Mohammed Al-Kobaisi (Latif)

A π-orbital axis vector (POAV) analysis used in Hückel molecular orbital approximation calculations indicates that the cutoff in the fullerene mass spectrum at C n ( n = 32) must naturally occur with no need to define a ‘magic’ number.


2017 ◽  
Vol 28 (2) ◽  
pp. 209-237 ◽  
Author(s):  
Clarence Green

AbstractMiller’s (1956, The magical number seven, plus or minus two: Some limits on our capacity for processing information. Psychological Review 63(2). 81–97) working memory (WM) capacity of around seven items, plus or minus two, was never found by usage-based linguists to be a recurrent pattern in language. Thus, it has not figured prominently in cognitive models of grammar. Upon reflection, this is somewhat unusual, since WM has been considered a fundamental cognitive domain for information processing in psychology, so one might have reasonably expected properties such as capacity constraints to be reflected in language use and structures derived from use. This paper proposes that Miller’s (1956) number has not been particularly productive in usage-based linguistics because it turns out to have been an overestimate. A revised WM capacity has now superseded it within cognitive science, a “magic number four plus or minus one” (Cowan 2001, The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behavioral and Brain Sciences 24(1). 87–185). This paper suggests, drawing on evidence from spoken language corpora and multiple languages, that a range of linguistic structures and patterns align with this revised capacity estimate, unlike Miller’s (1956), ranging from phrasal verbs, idioms, n-grams, the lengths of intonation units and some abstract grammatical properties of phrasal categories and clause structure.


2021 ◽  
Author(s):  
Christine L. Heinecke ◽  
Nicholas W. Milosch ◽  
Rachel E. Dufour ◽  
Mario G. Rodriguez
Keyword(s):  

1986 ◽  
Vol 134 (2) ◽  
pp. 757-762
Author(s):  
Yu Mihg-Kang
Keyword(s):  

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Junwei Wang ◽  
Chrameh Fru Mbah ◽  
Thomas Przybilla ◽  
Benjamin Apeleo Zubiri ◽  
Erdmann Spiecker ◽  
...  

Author(s):  
M. El Adri ◽  
M. Oulne

The exotic even–even isotopic chains from [Formula: see text] to [Formula: see text] are investigated by means of the relativistic Hartree–Bogoliubov (RHB) approach with the explicit Density Dependent Meson-Exchange (DD-ME2) and Density-Dependent Point-Coupling (DD-PC1) models. The classic magic number [Formula: see text] is reproduced and the new number [Formula: see text] is predicted to be a robust shell closure by analysing several calculated quantities such as: two-neutron separation energies, two-neutron shell gap, neutron pairing energy, potential energy surface and neutron single particle energies. The obtained results are compared with the predictions of finite range droplet model (FRDM) and with the available experimental data. A reasonable and satisfactory agreement between the theoretical models and experiment is established.


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