Molecular Level Understanding of the Free Energy Landscape in Early Stages of Metal-Organic Framework Nucleation.

The assembly mechanism of  Metal-Organic Frameworks (MOFs) is controlled by the choice of solvent and the presence of spectator ions. In this paper, we apply  enhanced sampling molecular dynamics methods to investigate the role of solvent and ions in the early stages of the synthesis of MIL-101(Cr). Microsecond-long well-tempered metadynamics simulations uncover a  rich  structural free energy landscape, with secondary building units (SBUs) adopting distinct crystal and noncrystal like configurations.

Effects of temperature and diet on the growth rate of year 0 oyster toadfish, Opsanus tau.

The effects of temperature and diet on the growth of captive year 0 specimens of Opansus tau were examined for two consecutive year classes. The 2001 year class was raised at about 23, 26, or 29 degrees C and provided with live brine shrimp, frozen butterfish and squid, or commercial food pellets (45% protein, 19% fat, and 3% fiber) three times per week. Maximal growth was achieved with the pellet diet, and fish raised at 29 degrees C attained the highest mean wet weight (84.

Direct reports of motivation for task performance levels: some construct-related evidence.

The validity of direct self-reports of motivational force for task performance levels was examined in three studies. Such measures have been used as true-scorelike criteria for computed measures of force and have advantages as measures in their own right. Results suggested that simple, direct self-reports should be useful in some research settings, but their validity as assessments of motivational force per se may be influenced by both wording and context.

Cardiovascular reactivity during hypnosis and hypnotic susceptibility: three studies of heart rate variability.

This paper was designed to examine the relationship between hypnotic susceptibility and cardiovascular measures, especially parasympathetic activity, in 3 separate studies. In these studies, neither heart rate nor heart rate variability differed between the high and low hypnotically susceptible individuals at the initial baseline. Furthermore, in the first study, experimental tasks designed to elicit differential sympathetic and parasympathetic cardiac responses demonstrated no interaction with hypnotic susceptibility.