How things get complicated

How things get stuck: kinetics, elastohydrodynamics, and soft adhesion.

We consider the sticking of a fluid-immersed colloidal particle with a substrate coated by polymeric tethers, a model for soft, wet adhesion in many natural and artificial systems. Our theory accounts for the kinetics of binding, the elasticity of the tethers, and the hydrodynamics of fluid drainage between the colloid and the substrate, characterized by three dimensionless parameters: the rati...

The things that get measured are the things that get done.

Rumination and Age: Some Things Get Better

Rumination has been defined as a mode of responding to distress that involves passively focusing one's attention on symptoms of distress without taking action. This dysfunctional response style intensifies depressed mood, impairs interpersonal problem solving, and leads to more pessimistic future perspectives and less social support. As most of these results were obtained from younger people, i...

How Neutrinos Get Mass and What Other Things May Happen besides Oscillations

Add 3 heavy singlet right-handed neutrinos to the minimal standard model: 1 νR for each νL. Then the operator of Eq. (3) is realized because each heavy νR is linked to νLφ 0 with a Yukawa coupling f ; and since νR is allowed to have a large Majorana mass MR, the famous seesaw realtionship mν = m 2 D/MR is obtained, where mD = f〈φ0〉. This mechanism dominates the literature and is usually implied...

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