Factors associated with psychological distress of Public Health Nurse in Kagawa prefecture, Japan: A pilot study

We evaluated the psychological distress using a scale of the K6, the 6-item scale of psychological distress on public health nurse in Kagawa prefecture, Japan. We send the questionnaire to all public health nurses (n = 419) in Kagawa prefecture. Then, a total of 256 public health nurses (1 man and 255 women), had completely answered the questionnaires, were analyzed in a cross-sectional investigation study. The association between psychological distress and considerable factors were evaluated by using the K6, with psychological distress defined as 13 or more points out of a total of 24 points. A total of 15 public health nurses (5.9%) were defined as psychological distress. Clear relationships between the K6 score and age, experience duration as public health nurse were not noted. The K6 score in subjects with anxiety of preventing suicide was significantly higher than that without. In addition, the K6 score in subjects who feel their own mental status was excellent was also lower than that in subjects without that. In conclusion, some factors might be associated with psychological distress, as assessed by the K6, in public health nurse in Kagawa prefecture, Japan.

A pilot study evaluating the factors associated with psychological distress of school teachers in Kagawa Prefecture, Japan

Objective: We investigated the psychological distress of school teachers using a 6-item instrument (the K6) in Kagawa prefecture, Japan. Methods: A total of 670 school teachers (328 men and 342 women) were analyzed in this cross-sectional investigation study. The association between psychological distress and clinical factors was evaluated by using the K6 instrument, with psychological distress defined as 13 or more points out of a total of 24 points. Results: A total of 55 teachers (8.2%) were classified as having psychological distress. No significant relationships between the K6 score and sex, age, duration of experience as a teacher, school grade and title were noted. The K6 score in teachers with consciousness of suicide among students was higher than that without, but not at a significant level. Conclusion: Some teachers were defined as having psychological distress in Kagawa prefecture, Japan. However, no relevant effects of basic characteristics such as age and sex on psychological distress were recognized.

Dynamic characteristics of large permanent magnet direct‐drive generators considering electromagnetic–structural coupling effects

Dynamic characteristics of large permanent magnet direct‐drive generators(PMDGs)considering electromagnetic–structural coupling effects are analyzed in this study.Using the conformal mapping method,the scalar magnetic potential of the air gap magnetic field considering the slot effect is calculated.On the basis of the discrete current element and magnetic equivalent circuit model,the local magnetic saturation effect of the stator and rotor is quantitatively simulated and the air gap magnetic field intensity distribution is obtained via numerical simulation.A series of uniformly distributed equivalent electromagnetic springs are introduced to develop an electromagnetic–structural coupling finite element PMDG model.The proposed air gap field analysis method is verified by the finite element analysis results.On the basis of the test platform for the Goldwind 1.5MW PMDG,both modal and dynamic response tests for the stator/rotor coupling system are conducted,and the results are compared with the natural frequencies,mode shapes,and vibration responses obtained using the numerical model.The effects of the air gap length and rotor speed on the natural frequencies of the coupling system are analyzed.The proposed model has the potential to accurately evaluate the PMDG vibration energy,avoiding resonance points,and maintaining stable operations of the unit.