Materials with excellent nonlinear optical properties, especially the second-harmonic-generation (SHG) ability that can double the frequency of a laser ω to 2ω, are greatly important to modern optical technology. Recently, a temperature-induced SHG “on–off” phenomenon has been reported in dozens of metal–organic complexes, which have emerged as candidates in advanced optoelectronic applications. As a counterpart to temperature, pressure is also expected to trigger a SHG “on–off” phenomenon; nevertheless, such material is relatively limited. Herein, we report the observation of a pressure-induced SHG “on–off” phenomenon accompanied by a structural phase transition and piezochromism in CdTeMoO6. Under ∼10 GPa compression, the material exhibits a sharp transition from the “SHG-on” state to the “SHG-off” state. Coupled with the SHG “on–off” phenomenon, a structural transition occurs from two-dimensional to three-dimensional due to the dramatic change in the coordination environments of Te4+ and Mo6+ from [TeO4] and [MoO4] tetrahedra to [TeO6] and [MoO6] octahedra, respectively. The suppression of stereoactive lone-pair electrons on Te4+ is considered to be responsible for the SHG-off state under high pressure. Piezochromism from colorless to black is also observed coupled with the SHG “on–off” phenomenon, which can be attributed to the hybridization between Mo 4d and O 2p orbitals. Moreover, we demonstrate that the “three-in-one” transition (structural transition, SHG on–off, and piezochromism) is irreversible at room temperature but reversible upon annealing at increased temperatures (230–350 °C) with SHG, lattice dimension and color returning to those of the initial state. All of these behaviors make CdTeMoO6 a maneuverable pressure- and temperature-regulated SHG switching material with pragmatic multifunctionality.

Background: Panic disorder (PD) is often undiagnosed, misdiagnosed, or untreated in non-psychiatric clinical settings. Therefore, a cost-effective, accurate and easy-to-administer instrument for PD assessment is still needed. For that reason, the self-report version of the Panic Disorder Severity Scale (PDSS-SR) has been developed and suggested to be a reliable and useful tool in clinical and research settings. The current study aims to evaluate the reliability and validity of the Chinese version of the PDSS-SR and determine the cut-off score of the PDSS-SR. Methods: A total of 133 patients with PD in Shanghai were assessed by the PDSS-SR, PDSS and Hamilton Anxiety Rating Scale (HAMA). Moreover, 117 patients with non-PD anxiety and 51 healthy subjects also completed the PDSS-SR to construct a receiver operating characteristic (ROC) curve with the scores of PD patients. Results: The internal consistency (Cronbach's α) of the PDSS-SR was 0.72-0.80, and the interrater correlation coefficient was 0.78. The results of principal component analysis and varimax rotation indicated that the PDSS-SR had a two-factor structure, with all seven items having salient loadings. The cut-off score was 4, which was associated with high sensitivity (96.03%) and specificity (61.31%). Conclusions:The findings demonstrate that these items and the total score of the PDSS-SR have acceptable reliability and validity in patients with PD and that the PDSS-SR can be used by general doctors for clinical screening in China.

Physician communication (PC) is central to influencing physician-patient relationship (PPR), and physician empathy (PE) is central to PC. A comprehensive and objective assessment of the mechanisms underlying PPR from the two-way perspective of physicians and patients are important for social development. However, the relationship between these three variables under the two-way perspective is not clear. To examine the effectiveness of PC in predicting PPR from a two-way perspective of physicians and patients and the underlying mechanisms that influence PPR. We selected 2665 physicians and 2983 patients in China and examined the effect of physician empathy on PPR and the mediating role of PC between PE and PPR using structural equation modeling. The results of the physician self-assessment showed that the link between PC and PPR was not significant, while the results of the patient other assessment showed that physician communication was not only effective in predicting the doctor-patient relationship but also mediated the relationship between physician empathy and PPR; further analysis of the underlying mechanisms affecting PPR revealed that the results of the physician self-assessment showed that PC mediated the relationship between perspective-taking and PPR; however, the results of the patient other assessment showed that physician However, patient ratings showed that PC mediated the relationship between perspective-taking and PPR, as well as between empathic concern and PPR. However, patient ratings indicate that PC mediates the relationship between perspective-taking and PPR and between empathic concern and the PPR.

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