A Two Transition State Model for Radical−Molecule Reactions:  A Case Study of the Addition of OH to C2H4

2005 ◽  
Vol 109 (27) ◽  
pp. 6031-6044 ◽  
Author(s):  
Erin E. Greenwald ◽  
Simon W. North ◽  
Yuri Georgievskii ◽  
Stephen J. Klippenstein
Keyword(s):  
Transition State ◽  
State Model

scholarly journals Developmental State and Ethnic Federalism in Ethiopia:

2019 ◽  
Vol 3 (1) ◽  
pp. 95-127
Author(s):  
Zekarias Beshah Abebe
Keyword(s):  
Cultural Diversity ◽  
Economic Restructuring ◽  
Developmental State ◽  
The Other ◽  
State Model ◽  
Ethnic Federalism ◽  
State Models ◽  
Liberal Approach ◽  
The Right

The ethnic federalization of the post-1991 Ethiopia and the subsequent adoption of developmental state paradigm are the two most important pillars for the country’s political and economic restructuring. An interventionist developmental state model is opted for against the dominant narrative of the non-interventionist neo-liberal approach as the right path to conquer poverty: a source of national humiliation. On the other hand, ethnically federated Ethiopia is considered as an antidote to the historical pervasive mismanagement of the ethno-linguistic and cultural diversity of the polity. The presence of these seemingly paradoxical state models in Ethiopia makes it a captivating case study for analysis. Ethiopia’s experiment of pursuing a developmental state in a decentralized form of governance not only deviates from the prevalent pattern but also is perceived to be inherently incompatible due to the competing approaches that characterize the two systems. This article argues that the way in which the developmental state is being practiced in Ethiopia is eroding the values and the very purposes of ethnic federalism. Its centralized, elitist and authoritarian nature, which are the hallmark of the Ethiopian developmental state, defeats the positive strides that ethnic federalism aspires to achieve, thereby causing discontent and disenfranchisement among a swathe of the society. The article posits that the developmental state can and should be reinvented in a manner that goes in harmony with the ideals of ethnic federalism. The notion of process-based leadership remains one way of reinventing the Ethiopian developmental state model.  

ChemInform Abstract: Transition-State Model for Subtilisin-Catalyzed Transesterifications of Secondary Alcohols.

ChemInform ◽  
2010 ◽  
Vol 30 (31) ◽  
pp. no-no
Author(s):  
Tadashi Ema ◽  
Ryoichi Okada ◽  
Minoru Fukumoto ◽  
Masahito Jittani ◽  
Mikiko Ishida ◽  
...  
Keyword(s):  
Transition State ◽  
State Model ◽  
Secondary Alcohols

scholarly journals A Two Transition State Model for Radical−Molecule Reactions:  Applications to Isomeric Branching in the OH−Isoprene Reaction

2007 ◽  
Vol 111 (25) ◽  
pp. 5582-5592 ◽  
Author(s):  
Erin E. Greenwald ◽  
Simon W. North ◽  
Yuri Georgievskii ◽  
Stephen J. Klippenstein
Keyword(s):  
Transition State ◽  
State Model

scholarly journals Separating Electronic from Steric Effects in Ethene/α-Olefin Copolymerization: A Case Study on Octahedral [ONNO] Zr-Catalysts

Processes ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 384 ◽  
Author(s):  
Francesco Zaccaria ◽  
Roberta Cipullo ◽  
Andrea Correa ◽  
Peter H. M. Budzelaar ◽  
Vincenzo Busico ◽  
...  
Keyword(s):  
Transition State ◽  
Electronic Properties ◽  
Polymerization Kinetics ◽  
Relative Reactivity ◽  
Steric Effects ◽  
Reactivity Ratios ◽  
Ancillary Ligand ◽  
Electronic Effects ◽  
Dft Modeling

Four Cl/Me substituted [ONNO] Zr-catalysts have been tested in ethene/α-olefin polymerization. Replacing electron-donating methyl with isosteric but electron-withdrawing chlorine substituents results in a significant increase of comonomer incorporation. Exploration of steric and electronic properties of the ancillary ligand by DFT confirm that relative reactivity ratios are mainly determined by the electrophilicity of the metal center. Furthermore, quantitative DFT modeling of propagation barriers that determine polymerization kinetics reveals that electronic effects observed in these catalysts affect relative barriers for insertion and a capture-like transition state (TS).

scholarly journals Electron Transfer from Cytochromec2to the Reaction Center: A Transition State Model for Ionic Strength Effects Due to Neutral Mutations

Biochemistry ◽  
2009 ◽  
Vol 48 (48) ◽  
pp. 11390-11398 ◽  
Author(s):  
Edward C. Abresch ◽  
Xiao-Min Gong ◽  
Mark L. Paddock ◽  
Melvin Y. Okamura
Keyword(s):  
Electron Transfer ◽  
Ionic Strength ◽  
Transition State ◽  
Reaction Center ◽  
State Model ◽  
Neutral Mutations
Sign in / Sign up

Export Citation Format

Share Document