منابع مشابه
Protonation of Pyrrole : AModel Hardness ( Softness ) Sensitivity Study "
The protonation mechanism of pyrrole is investigated in terms of various global and regional (fragment) hardness (softness) parameters and related quantities in order to identify the most sensitive criteria indicating the lmown o.-preference for electrophilic substitution in this molecule. Both rigid and relaxed hardness data are discussed. Numerical results for the H+... pyrrole system, obtain...
متن کاملOn the applicability of local softness and hardness.
Global hardness and softness and the associated hard/soft acid/base (HSAB) principle have been used to explain many experimental observed reactivity patterns and these concepts can be found in textbooks of general, inorganic, and organic chemistry. In addition, local versions of these reactivity indices and principles have been defined to describe the regioselectivity of systems. In a very rece...
متن کاملDoes tactile softness and hardness alter our acceptance of utilitarian judgment?
Present study examines the effect of incidental haptic sensations on acceptance of utilitarian judgment—seeking greater happiness in exchange for a few victims—under personal and impersonal moral dilemmas. Recently, Nakamura et al. (2014) indicated that physical coldness reduced empathic concern and facilitated utilitarian judgment in personal moral dilemma. It is also shown that tactile sensat...
متن کاملRemember Hard But Think Softly: Metaphorical Effects of Hardness/Softness on Cognitive Functions
Previous studies have found that bodily stimulation, such as hardness biases social judgment and evaluation via metaphorical association; however, it remains unclear whether bodily stimulation also affects cognitive functions, such as memory and creativity. The current study used metaphorical associations between "hard" and "rigid" and between "soft" and "flexible" in Chinese, to investigate wh...
متن کاملInteratomic repulsion softness directly controls the fragility of supercooled metallic melts.
We present an analytic scheme to connect the fragility and viscoelasticity of metallic glasses to the effective ion-ion interaction in the metal. This is achieved by an approximation of the short-range repulsive part of the interaction, combined with nonaffine lattice dynamics to obtain analytical expressions for the shear modulus, viscosity, and fragility in terms of the ion-ion interaction. B...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Concrete Journal
سال: 2014
ISSN: 0387-1061,2186-2753
DOI: 10.3151/coj.52.211