scholarly journals Effects of Bentonite on p-Methoxybenzyl Acetate: A Theoretical Model for Oligomerization via an Electrophilic-Substitution Mechanism

Molecules ◽  
2011 ◽  
Vol 16 (2) ◽  
pp. 1761-1775 ◽  
Author(s):  
Manuel Salmón ◽  
Rene Miranda ◽  
Ines Nicolás-Vázquez ◽  
Yolanda Marina Vargas-Rodriguez ◽  
Julian Cruz-Borbolla ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Electrophilic Substitution ◽  
Substitution Mechanism

Mechanistic Analysis of Iridium Heteroatom C−H Activation:  Evidence for an Internal Electrophilic Substitution Mechanism

2007 ◽  
Vol 26 (7) ◽  
pp. 1565-1567 ◽  
Author(s):  
Jonas Oxgaard ◽  
William J. Tenn ◽  
Robert J. Nielsen ◽  
Roy A. Periana ◽  
William A. Goddard
Keyword(s):  
Electrophilic Substitution ◽  
Mechanistic Analysis ◽  
Substitution Mechanism

Addition of Electron-Rich Aromatics to Azafullerenium Carbocation. A Stepwise Electrophilic Substitution Mechanism

2003 ◽  
Vol 5 (24) ◽  
pp. 4603-4606 ◽  
Author(s):  
Georgios C. Vougioukalakis ◽  
Nikos Chronakis ◽  
Michael Orfanopoulos
Keyword(s):  
Electrophilic Substitution ◽  
Substitution Mechanism

Theoretical model of the electrophilic substitution in pentagonal unsaturated heterocycles

1990 ◽  
Vol 209 (3-4) ◽  
pp. 361-372 ◽  
Author(s):  
J.Raul Alvarez-Idaboy ◽  
Diana Cuza ◽  
Luis A. Montero ◽  
Rita Isoba
Keyword(s):  
Theoretical Model ◽  
Electrophilic Substitution

A Model for Analyzing Suicide Prevention

Crisis ◽  
2000 ◽  
Vol 21 (2) ◽  
pp. 80-89 ◽  
Author(s):  
Maila Upanne
Keyword(s):  
Risk Factors ◽  
Theoretical Model ◽  
Protective Factors ◽  
Suicide Prevention ◽  
Suicide Risk ◽  
Practical Work ◽  
Individual Risk ◽  
Self Assessment ◽  
Prevention Project ◽  
Individual Risk Factors

This study monitored the evolution of psychologists' (n = 31) conceptions of suicide prevention over the 9-year course of the National Suicide Prevention Project in Finland and assessed the feasibility of the theoretical model for analyzing suicide prevention developed in earlier studies [ Upanne, 1999a , b ]. The study was formulated as a retrospective self-assessment where participants compared their earlier descriptions of suicide prevention with their current views. The changes in conceptions were analyzed and interpreted using both the model and the explanations given by the subjects themselves. The analysis proved the model to be a useful framework for revealing the essential features of prevention. The results showed that the freely-formulated ideas on prevention were more comprehensive than those evolved in practical work. Compared to the earlier findings, the conceptions among the group had shifted toward emphasizing a curative approach and the significance of individual risk factors. In particular, greater priority was focused on the acute suicide risk phase as a preventive target. Nonetheless, the overall structure of prevention ideology remained comprehensive and multifactorial, stressing multistage influencing. Promotive aims (protective factors) also remained part of the prevention paradigm. Practical working experiences enhanced the psychologists' sense of the difficulties of suicide prevention as well as their criticism and feeling of powerlessness.

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