Survey of the Sleep Quality of Medical Staff in a Grade A Tertiary Hospital during the Novel Coronavirus Pneumonia Outbreak

This study aimed to investigate the sleep quality of medical staff in China who are combatting novel coronavirus pneumonia(COVID-19).To perform this,a survey of 127 medical staff from three separate wards(the general ward,isolation ward,and fever clinic)of a Grade A tertiary hospital in China was conducted.The survey questionnaire measured general characteristics and included the Pittsburgh Sleep Quality Index(PSQI).We consequently found that global PSQI scores differed significantly between the different wards(χ2=44.561,P<0.001).Whilst the medical staff in the general ward did not report any sleep disturbances,those in the isolation ward and the fever clinic both exhibited various degrees of sleep disturbance(global PSQI score>7).Medical staff in the isolation ward had the worst sleep quality(mean rank=91.74),followed by those in the fever clinic(mean rank=70.52)and the general ward(mean rank=39.10),respectively.The primary sleep disturbances reported by the medical staff from the isolation ward included difficulty falling asleep(24 cases,71.42%),waking early or at night(28 cases,80%),and nightmares(18 cases,51.42%).In addition,31.42%(11 cases)of the medical staff from the isolation ward had less than six hours of sleep a night,and 65.71%(23 cases)felt that their sleep quality was poor;meanwhile,for the staff from the fever clinic these ratios were 16.67%(seven cases)and 33.33%(14 cases),respectively.In contrast,among medical staff in the general ward,98%(49 cases)reported sleeping for more than six hours a night,and 96%felt that their sleep quality was good.In conclusion,of the medical staff providing treatment for COVID-19,those in isolation wards and fever clinics are more likely to experience sleep disturbances.

The Application of Quality Control Circles to Reduce the Cost of Non-priced Consumables in Department of Oncology

Objective:To investigate the effectiveness of using quality control circle(QCC)techniques to reduce the cost of non-priced consumables in medical oncology.Methods:Analytic statistics were compiled on the performance appraisal form.Aiming at the key points of improvement with respect to the excess cost of non-valuable consumables,the reasons were analyzed,and corresponding measures were formulated to compare the cost before and after the improvement.Results:After the QCC activity,the cost of non-priced consumables decreased from RMB 6.57/bed day to RMB 3.96/bed day.Conclusion:QCC has effectively reduced the cost of non-priced consumables in the oncology department,and it is worthy of promotion.

Patterned glass ceramic design for high-brightness high-color-quality laser-driven lightings

Up-to-date laser-driven lightings confront a challenge of simultaneously achieving good photometric and chromatic performances.Herein,the coupling of“patterned package design”and“phosphor wheel”was proposed and demonstrated effectively to deal with this tough issue,based on a new architecture of CaAlSiN3:Eu2+(CASN:Eu)glass ceramic film(GCF)on Y_(3)Al_(5)O_(12):Ce^(3+)(YAG:Ce)GC plate.The fabricated composite has no interface between the two functional layers and retains the admirable luminescent features from CASN:Eu and YAG:Ce for the microstructural integrity during co-sintering.The studies on laser-microcrystalline interactions reveal that the luminescence saturation is almost determined by thermal quenching for YAG:Ce,but is ascribed to thermal/intensity quenching which are equally crucial for CASN:Eu.Benefiting from the elaborate architecture design,good color chromaticity tunability was obtained,and severe photon reabsorption was reduced.Moreover,accompanied with the rotation induced increase of thermal convection to air and pulse-like excitation,the constructed lighting engine under blue laser driven shows bright white light with luminous flux(LF)higher than 1000 lm,adjustable chromaticity from cool to warm,and improved color rendering index(CRI)approaching to 70.