According to the phenomenon that the curriculum of psychological health education for college students is theoretical,lack of experience and the teaching form is single,this research attempts to private a blended teaching which is based on the small private online course (SPOC) and experiential teaching.The content of mental health is divided into theoretical knowledge and experience knowledge.And the theoretical knowledge is taught through online teaching in the form of massive open online courses (MOOC),while the experiential knowledge is taught by pure experiential teaching in the classroom.The study has summed up 3 stages of learning mode:learning before class,teaching experience and reflection after class.This changes the single classroom theory teaching to students experience learning.Besides,formative evaluation is used as assessment methods,which has enhanced the effectiveness of the course and at the same time,it has also promoted the improvement of teachers' teaching level effectively.

Objective:To explore the influence of flipped classroom teaching mode on college students' attitudes towards psychological help-seeking.Methods:The small private online course and experiential teaching method were combined to teach the course of mental health. Before and after the course, the Attitudes toward Seeking Professional Psychological Help Scale (Hao Zhihong 2007 Revision) and the Self-Stigma of Seeking Professional Psychological Help Scale (Vogel et al.) were used to measure the professional help-seeking attitudes and self-stigma of 258 randomly selected subjects. SPSS 22.0 and paired sample t-test were used and related data were analyzed. Results:A total of 242 valid scales were collected. The teaching mode of flipped classroom reduced self-stigma ( t=2.067, P=0.040) and increased the willingness of professional psychological help-seeking among students ( t=2.483, P=0.015). Before the course, there was no significant difference between the high-input group and the low-input group in the attitudes of help-seeking ( t=0.515, P=0.607) and self-stigma ( t=0.432, P=0.666). After the course, the scores of help-seeking attitudes in the high-input group were significantly higher than those in the low-input group ( t=2.401, P=0.018), and the self-stigma scores in high-input group were significantly lower than those in low-input group ( t=2.185, P=0.031). Conclusion:The teaching mode of flipped classroom helps to reduce self-stigma evaluation and forms a more positive attitude towards seeking help. Attitudes changed significantly in those students who have higher commitment in knowledge learning, self-expression and self-reflection.

Objective: To investigate the effect of the lower extremitas abduction brace pads which is designed by our team in helping patient turnover after orthopedic femoral neck fracture, intertrochanteric fracture, femoral head replacement. Methods: Using prospective cohort study to facilitate sampling From October 2016 to August 2017, in an upper third-class hospital of Jiangsu province, we selected 100 patients in Orthopedics dept. No.1 at random as the experimental group and 80 patients in dept. No.2 as the control group. Lower extremitas abduction brace pads were used in experimental group and pillows, backrests and clothes were used in control group. Comfort level, incidence of skin pressure injury, joint dislocation rate and the compliance of the two groups were compared. Results: The number of patients in experimental group who rated the comfort up to 3 (feel a little pain and uncomfortable) was much higher than that in control group (OD value was 5.801, P<0.01), while which rated 1 (feel painful, unbearable and extremely uncomfortable) was lower than that of control group (OD value was 0.168 ,P<0.01) . The ratio of stress injury and dislocation were lower in experimental group (OD value was 0.126, P=0.046). There was no significant difference between two groups in the ratio of dislocation after femoral head replacement (OD value was 0.000, P=0.444) and leg deep vein thrombosis (OD value was 0.000, P=1.000). Conclusion Lower extremitas abduction brace pads can effectively improve the comfort of the patients and reduce the ratio of stress injury.

Objective:To summarize the ultrasonographic features and prognosis of fetal persistent vitelline artery.Methods:The prenatal ultrasound features, genetic testing results, and prognosis of a fetus with an isolated persistent vitelline artery that was diagnosed in our hospital in December 2021 were retrospectively analyzed. Relevant articles were retrieved from CNKI, VIP, Wanfang, Yiigle, PubMed, Embase, and UpToDate databases using the terms "persistent vitelline artery", "type Ⅱ single umbilical artery", and "prenatal ultrasound" in both Chinese and English. Prenatal ultrasound features and prognosis of the persistent vitelline artery in fetuses were summarized using descriptive statistical analysis.Results:(1) Case report: In this case, ultrasound at 23 gestational weeks showed that an abnormally large blood vessel deriving from the celiac artery near the superior mesenteric artery entered the placenta through the umbilical opening in parallel with the umbilical vein. Color Doppler showed a blood flow spectrum like that in the umbilical artery. The transverse section image showed that bilateral umbilical arteries were not observed in the bladder and the free segment of the umbilical cord was in the shape of the Chinese character "Lyu". No obvious other structural abnormalities and a negative result of genetic testing were observed in the fetus. Followed up to one year old, the patient showed normal growth and development. (2) Literature review: A total of five articles involving four cases were retrieved (three in English and two in Chinese). Among the five cases, including the present case, one was terminated due to left renal agenesis and abnormal heart arteries ratio revealed by prenatal ultrasound, and the remaining four cases without obvious structural abnormalities in the prenatal ultrasound were born and developed well. Histopathological examination of the umbilical cord was performed in three cases, of which two with persistent vitelline artery had a distinct internal elastic lamina, and one with remained vitelline duct.Conclusions:The prenatal ultrasound of fetal persistent vitelline artery is typically characterized by an abnormal vessel that is derived from the abdominal aorta or superior mesenteric artery and plays the function of the umbilical artery. The prognosis of the isolated persistent vitelline artery is good, but a better understanding of such embryonic abnormalities is needed as there are few relevant reports at home and abroad.

Objective:To study the ultrasonographic characteristics of embryos/fetuses with normal or abnormal central nervous system (CNS) from 7 to 13 +6 weeks of gestation using high resolution two-dimensional ultrasound combined with HD-live silhouette technology and provide a reference for early diagnosis of CNS abnormalities. Methods:Eighty normal embryos/fetuses during 7-13 +6 weeks and 41 fetuses with CNS malformations in early pregnancy during 11-13 +6 weeks were selected to observe the ultrasonographic features of embryos/fetuses with normal or abnormal CNS using transvaginal high resolution two-dimensional ultrasound and HD-live silhouette technology. Descriptive analysis was performed on the results. Results:From seven weeks of gestational age, high resolution two-dimensional ultrasound combined with HD-live silhouette technology can clearly and stereoscopically show the prosencephalon, mesencephalon and rhombencephalon. The rhombencephalon changed the most in the brain development of embryos. At nine weeks of gestation, cleared structures of pons curvature, the fourth ventricle and cisterna magna were observed. The developing cerebellum and the original Blake pouch cyst were seen at 10 weeks of gestation. From 11 to 13 +6 weeks, the most remarkable change was the choroid plexus of the fourth ventricle changed from perpendicular to parallel to the long axis of the neural tube. Of the 41 fetuses with CNS malformation, 16 (39.0%) were exencephaly, 11 (26.8%) were holoprosencephaly, five (12.2%) were encephalocele, four (9.7%) were anencephaly, three (7.3%) were fourth ventricle dilatation, and two (4.9%) were open spina bifida. Conclusions:High resolution two-dimensional ultrasound combined with HD-live silhouette technology can clearly and stereoscopically display the morphological changes in embryonic embryos/fetuses with development of normal CNS at 7-13 +6 weeks, which is helpful to better understand the origin of CNS embryonic abnormalities and provide diagnostic clues for the early detection of CNS abnormalities.