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Background Some articles revealed a relationship between empathy and felt-musical emotion in normal people. Whether the dysfunction of felt-musical emotion exist in schizophrenics is not clear, but several findings indicated these patients had impairments of all-round empathy. The objective of our research is to explore musical felt emotion elicited by music(sad/happy) of schizophrenics and compare the differences between schizophrenic patients and normal subjects; at the same time, we investigated the association between clinical symptoms, empathy and musical felt emotion in schizophrenic patients. Methods We recruited 47 people with schizophrenic and 47 matched normal subjects who met the criteria to complete our semi-structured interview, musical emotion experience test and other behavioral tests. The IRI-C(Chinese version of Interpersonal Reactivity Index test) was used to assess the empathy of the subjects. In addition, the Self-Rating Depression Scale (SDS) and self-rating Anxiety Scale (SAS) were also filled out. Results In line with previous findings, part of emotional experience of happy and sad music in schizophrenic patients is impaired. With respect of empathy dimensions, we found the higher the fantasy ability is, the easier schizophrenics are to experience Romantic with the stimulation of happy/sad music. In addition, there are some relationships between clinical symptoms and music experience. Conclusion This conclusion may provide us subsequent idea, if we enhance the romantic emotion of schizophrenics on happy music experience via certain ways that may be beneficial to improve the level of their Empathy and fantasy-dimension.

Posttraumatic growth (PTG) is defined as positive psychological change in the wake of highly challenging circumstances. Healthcare workers in particular are more vulnerable to stressors and trauma than the general population. The current study examined the use and effectiveness of a novel positive psychological intervention based on Chinese traditional culture to improve PTG in hospital healthcare workers. The intervention was provided to 579 healthcare workers at hospitals in Guilin, Shenzhen and Xiangtan. Scores on the Posttraumatic Growth Inventory (PTGI) and its subscales were significantly higher after intervention than before (p

Molecular dynamics simulations of the melting curve of tantalum for the pressure range 0–300 GPa are reported. The calculated melting curve agrees well with shock wave measurements and other calculations, but disagrees strongly with the diamond anvil cell data at high pressure. Calculated results for the pressure dependence of the fusion volume and entropy show that the pressure dependence of melting temperature approximately followed the Clausius–Clapeyron relation, and the slope of melting curve is mainly due to the variation of fusion volume. Entropy change due to latent volume change in melting, Δ S V and change in the configuration, Δ S D were evaluated. It is found that they have similar trend as the overall entropy change in melting, and Δ S D is more dominant. Furthermore, the value of Δ S D at ambient pressure is close to Rln2 per mole, which is the specific value of Δ S D predicted by the Rln2 rule, while it decreases when pressure goes from 50 to 300 GPa. The analysis of the pair distribution function at extreme pressure shows that the change of configuration on melting decreases with increasing pressure, which supports the pressure dependence of Δ S D .

In order to clarify the apparent discrepancy in determinations of melting temperature Tm of Mo between diamond-anvil cell (DAC) measurements from 0 to about 100 GPa and shock wave (SW) measurement at only one pressure of about 390 GPa by comparison with visual extrapolation, we perform SW experiments to replenish more Tm data on purpose to make this comparison more directly and rationally as well. The techniques adopted consist of Hugoniot sound velocity measurement for porous Mo and shock-induced release Tm measurements for both solid and porous Mo. Totally five SW Tm data, which extends the measured pressure range from previous about 390 GPa down to about 136 GPa that is close to the highest pressure (about 100 GPa) attained by previous DAC experiments, are therefore obtained. These measured Tm data, other than the extrapolated as mentioned above, exhibit a manner of continuous variation with pressure and can be fitted well with Lindemann melting description. More significantly, the measured Tm data at lowest pressure are still much higher than that of the DACs and the overall trend of these Tm data is against to the two-segment melting curve model, with a sudden change in dTm/dP at about 210 GPa, previously proposed by Errandonea [Physica B 357 (2005) 356]. Though the problem of large discrepancy in Tm data measured between DAC and SW has not been completely explained, our knowledge on this matter achieves indubitable progress since it is of value to programme the next clarification. Some suggestions for further clarifying the issue of large discrepancy between DAC and SW measurements are also proposed.

Within the framework of the quasiharmonic approximation, the thermodynamics and elastic properties of Ta, including phonon density of states (DOS), equation of state, linear thermal expansion coefficient, entropy, enthalpy, heat capacity, elastic constants, bulk modulus, shear modulus, Young's modulus, microhardness, and sound velocity, are studied using the first-principles projector-augmented wave method. The vibrational contribution to Helmholtz free energy is evaluated from the first-principles phonon DOS and the Debye model. The thermal electronic contribution to Helmholtz free energy is estimated from the integration over the electronic DOS. By comparing the experimental results with the calculation results from the first-principles and the Debye model, it is found that the thermodynamic properties of Ta are depicted well by the first-principles. The elastic properties of Ta from the first-principles are consistent with the available experimental data.