Ethyl (2E,4Z)-5-diethyl­amino-2-(phenyl­sulfon­yl)penta-2,4-dienoate

In the title compound, C17H23NO4S, the penta­diene group adopts a planar conformation, with an r.m.s. deviation of 0.0410 (14) Å. The phenyl ring makes a dihedral angle of 85.73 (11)° with the penta­diene group, while the penta­diene group makes dihedral angles of 11.38 (11) and 14.08 (10)°, respectively, with the amino and ester groups. In the crystal, molecules are linked via pairs of C—H⋯O inter­actions, forming inversion dimers

The Effectiveness of Social Media-Enabled Patient Communities on Health Goal Attainment: An Approach of Survival Analysis

Health goal striving activities are a major part of the daily lives of those fighting chronic diseases. In this study, we are interested in understanding the effectiveness of social media-enabled online patient communities on the outcome of health goal striving endeavor - health goal attainment. Applying social cognitive theory, we study the antecedents of health goal attainment from the respects of social support and self-reflection in online patient communities. We apply Survival Analysis to a data set of patients’ interactions and their health goal progress from a leading online patient community. Our findings show that emotional social support can increase patients’ chance to achieve their goals while informational social support does not appear to be effective. In addition, health-related self-reflection increases online patients’ likelihood of goal attainment, but leisure-oriented self-reflection negatively affects the possibility

Characterization of Electromagnetic Valveless Micropump

This paper presents an electromagnetically-actuated micropump for microfluidic application. The system comprises two modules; an electromagnetic actuator module and a diffuser module. Fabrication of the diffuser module can be achieved using photolithography process with a master template and a PDMS prepolymer as the structural material. The actuator module consists of two power inductors and two NdFeB permanent magnets placed between the diffuser elements. The choice of this actuation principle merits from low operating voltage (1.5 Vdc) and the flow direction can be controlled by changing the orientation of the magnet vibration. Maximum volumetric flow rate of the fabricated device at zero backpressure is 0.9756 µLs-1 and 0.4659 µLs-1 at the hydrostatic backpressure of 10 mmH2O at 9 Hz of switching speed