厦门市大学生HPV疫苗认知及接种意愿调查

目的了解厦门市大学生对HPV疫苗的认知和接种意愿及其影响因素。方法 2017年2—4月,采用分层抽样、自编式问卷面对面调查厦门市6所学校1760名大学生的人口学、性行为、性态度及对HPV疫苗认知和接种意愿等信息。结果 HPV疫苗知晓率为24.2%(426/1760),女性高于男性(26.2%vs.22.1%,P=0.045)。城市、医学专业、初次性行为年龄<18岁的男大学生及城市、本科学校、医学专业、个人月消费≥2000元、吸烟的女大学生对HPV疫苗的知晓率较高。知晓HPV疫苗的大学生中,HPV疫苗愿意接种率为73.0%(311/426),女性高于男性(85.0%vs.58.5%,P<0.001)。城市、发生过性行为的男大学生及性知识水平高的女大学生更愿意接种HPV疫苗。获知HPV疫苗的途径主要是网络、电视或报刊,接种HPV疫苗主要考虑因素为预防效果、不良反应、价格。结论厦门市大学生对HPV疫苗的知晓率较低,但知晓HPV疫苗者的接种意愿较高。应加强对HPV相关知识的教育,以提高人群HPV疫苗知晓率和接种率,从而预防HPV感染及相关疾病。国家自然科学基金(81601805、81673240)福建省科技重大专项(2015YZ0002

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies