This study examined the relationship between the presence of mobile devices and the quality of real-life in-person social interactions. In a naturalistic field experiment, 100 dyads were randomly assigned to discuss either a casual or meaningful topic together. A trained research assistant observed the participants unobtrusively from a distance during the course of a 10-min conversation noting whether either participant placed a mobile device on the table or held it in his or her hand. Using Hierarchical Linear Modeling, it was found that conversations in the absence of mobile communication technologies were rated as significantly superior compared with those in the presence of a mobile device, above and beyond the effects of age, gender, ethnicity, and mood. People who had conversations in the absence of mobile devices reported higher levels of empathetic concern. Participants conversing in the presence of a mobile device who also had a close relationship with each other reported lower levels of empathy compared with dyads who

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SFIOL implantation is valuable for the management of aphakia in the absence of capsular support, and our visual outcomes and complication rates are comparable to other case series. The long-term outcomes and safety profile are favourable, but potential long-term suture-related problems should be discussed with the patients before surgery.

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The electrochemical performances of symmetric supercapacitors assembled by MnFe 2 O 4 colloidal nanocrystal clusters (CNCs) in aqueous electrolytes were investigated by using cyclic voltammetry, galvanostatic charge-discharge, cycle stability and electrochemical impedance spectroscopy. Results showed that the capacitance of MnFe 2 O 4 CNCs can be easily adjusted by the controlled electrolytes. It was found that the specific capacitances of CNCs-based electrodes were 97.1, 93.9 74.2 and 47.4 F g-1 for the electrolytes (2 M) containing KOH, NaOH, LiOH and Na 2 SO 4 , respectively, at the current density of 0.1 A g-1. The capacitance of the electrode was increased from 56.9 to 152.5 F g-1 with aqueous KOH electrolytes changed from 0.5 M to 6 M. The MnFe 2 O 4 CNCs-based supercapacitor using aqueous KOH (6 M) electrolyte displayed the best cycle stability among all the supercapacitors. Based on the experimental results, the enhancement mechanism of electrochemical performances for the CNCs-based supercapacitors was proposed.

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