Objective
The study aimed to evaluate the effects of web-problem-based learning (WPBL) in the application ofFundamental .
Methods
The sample was purposively selected. 172 students in School of Nursing in Tianjin were recruited as the control group (n=83) and the intervention group (n=89). Traditional teaching method and WPBL was implemented in the control group and the inter-vention group, respectively. The teaching effectiveness of the two groups was measured by the examination and learn-ing initiative evaluation scale and the teaching effect evaluation questionnaire, and the teaching satisfaction questionnaire was implemented among the intervention group. SPSS 18.0 was used and t test was performed to analyze the comparison between groups.
Results
In the theoretical examination, the scores of comprehen-sive analysis of the nursing students in the intervention group were better than those in the control group, and the difference was statistically significant (P<0.05). In the evaluation of active learning after school, the scores of control learning in the intervention group were higher than those in the control group, and the differ-ence was statistically significant ([14.78±2.16), vs. (13.58±2.16), t=-3.58, P=0.000]. 83 effective question-naires of intervention group nursing students' teaching satisfaction were recovered. 73 of them (88%) thought that WPBL could improve the students' ability of independent learning, 71 students (85.5%) found that WPBL could enhance the ability of information processing, 73 students (88%) thought they could com-municate well with their classmates in WPBL and cooperate well to complete the task.
Conclusion
WPBL which is on the basis of PBL and make full use of the network, could promote the ability of autonomous learn-ing, information processing and communication with classmates and good cooperation, but in the application process, it needs teachers to organize reasonably, perfect the supervision mechanism, and reduce taking up students' spare time.
Key words:
Web-problem-based learning (WPBL); Fundamental nursing
Due to the increasing spread of the novel coronavirus disease (COVID-19), prevention and control measures have become increasingly important As a key location for diagnosing and treating upper airway diseases, strict precautions are required in ear nose and throat (ENT) endoscopy units Endoscopy workers have a high risk of occupational exposure Therefore, procedures must be strictly performed according to the prevention and control plan The prevention and control requirements for COVID-19, as directed by the National Health Commission of China, have been universally deployed in our hospital We have carefully analyzed the risk factors of infection during the epidemic period and subsequently formulated a prevention and control scheme for COVID-19 based on the infection control measures in the ENT endoscopy unit These have helped to avoid cross-infection in the hospital and ensure the safety of patients and medical staff during the COVID-19 epidemic
C-arm cone-beam computed tomography (CBCT) virtual navigation-guided lung biopsy has been developed in the last decade as an alternative to conventional CT-guided lung biopsy. This study aims to compare the biopsy accuracy and safety between these two techniques and explores the risk factors of biopsy-related complications. A total of 217 consecutive patients undergoing conventional CT- or C-arm CBCT virtual navigation-guided lung biopsy from 1 June 2018 to 31 December 2019 in this single-center were retrospectively reviewed. Multiple factors (e.g., prior emphysema, lesion size, etc.) were compared between two biopsy techniques. The risk factors of complications were explored by using logistic regression. The patients' median age and male-to-female ratio were 63 years and 2.1:1, respectively. Eighty-two (82) patients (37.8%) underwent conventional CT-guided biopsies, and the other 135 patients (62.2%) C-arm CBCT virtual navigation-guided biopsies. Compared with patients undergoing C-arm CBCT virtual navigation-guided lung biopsies, patients undergoing conventional CT-guided lung biopsies showed higher needle repositioning rate, longer operation time, and higher effective dose of X-ray (52.4% vs. 6.7%, 25 min vs. 15 min, and 13.4 mSv vs. 7.6 mSv, respectively; p < 0.001, each). In total, the accurate biopsy was achieved in 215 of 217 patients (99.1%), without a significant difference between the two biopsy techniques (p = 1.000). The overall complication rates, including pneumothorax and pulmonary hemorrhage/hemoptysis, are 26.3% (57/217), with most minor complications (56/57, 98.2%). The needle repositioning was the only independent risk factor of complications with an odds ratio of 6.169 (p < 0.001). In conclusion, the C-arm CBCT virtual navigation is better in percutaneous lung biopsy than conventional CT guidance, facilitating needle positioning and reducing radiation exposure. Needle repositioning should be avoided because it brings about more biopsy-related complications.
A time-delayed reaction-diffusion system of mistletoes and birds with nonlocal effect in a two-dimensional strip is considered in this paper. By the background of model deriving, the bird diffuses with a Neumann boundary value condition, and the mistletoes does not diffuse and thus without boundary value condition. Making use of the theory of monotone semiflows and Kuratowski measure of non-compactness, we discuss the existence of spreading speed $c^\ast$. The value of $c^*$ is evaluated by using two auxiliary linear systems accompanied with approximate process.
Background The characteristics and prevalence of Budd–Chiari syndrome in China remain unclear. This study aimed to analyze the clinical features of Budd–Chiari syndrome in Chinese patients in the Hubei area. Methods One-hundred and thirty patients with Budd–Chiari syndrome, admitted to Union Hospital from January 2002 to January 2011, were included in this retrospective study. Clinical features, laboratory data, imaging characteristics, and cumulative patency rates were analyzed. Results Of the 130 patients with Budd–Chiari syndrome, 77 were men (59.2%) and 53 women (40.8%). Budd–Chiari syndrome was more commonly associated with inferior vena cava block (56.9%, 74/130) than hepatic vein block (19.2%, 25/130) and combined inferior vena cava/hepatic vein block (23.9%, 31/130). The clinical features of Budd–Chiari syndrome varied based on the location of the obstruction. The incidence of bilirubin abnormality, elevated alkaline phosphatase, and γ-glutamyl peptide transferase levels was common in patients with Budd–Chiari syndrome. Liver injury was more severe in cases with combined inferior vena cava/hepatic vein block than in the other two types of Budd–Chiari syndrome. Color Doppler ultrasound imaging was better for the diagnosis of hepatic vein obstruction, while computed tomography and magnetic resonance imaging were superior in diagnosing inferior vena cava obstruction. The cumulative 1-, 5-, and 10-year patency rates were 97%, 69%, and 59%, respectively. Univariate analysis indicated that liver cirrhosis was an independent risk factor of recurrence. Conclusion The most prevalent type of Budd–Chiari syndrome is inferior vena cava obstruction in Chinese patients in the Hubei area. Different types of Budd–Chiari syndrome have diverse clinical and biochemical features, which may assist clinicians in diagnosing Budd–Chiari syndrome. Liver cirrhosis was found as an independent risk factor of recurrence.
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