Objective: To explore the application effect of CBL combined with rain classroom teaching method in medical statistics courses. Methods: The undergraduate students of medical imaging technology in 2019 and 2020 in a u...Objective: To explore the application effect of CBL combined with rain classroom teaching method in medical statistics courses. Methods: The undergraduate students of medical imaging technology in 2019 and 2020 in a university were selected as the research objects. A cluster sampling method was used to select 79 undergraduate students from 2019 in the control group and 75 undergraduate students from 2020 in the experimental group. Traditional teaching method and CBL combined with rain classroom teaching method was used in the control group and experimental group respectively. The final examination scores of the two groups were compared. In experimental group, the correlation between the average score in the rain classroom and the final examination score was tested, and the teaching effect was evaluated. Results: The average score of final examination in experimental group and control group was 79.13 ± 10.32 points and 71.54 ± 14.752 points, respectively, which had a statistically significant difference (Z = 2.586, P = 0.012);the final examination scores of the students in the experimental group were positively correlated with the average scores of the rain classroom (r = 0.372, P = 0.001), and the proportion of satisfaction in the experimental group was 94.7%. Conclusion: The CBL combined with rain classroom teaching method can improve the teaching effectiveness of medical statistics courses.展开更多
Statistical analysis is critical in medical research.The objective of this article is to summarize the appropriate use and reporting of commonly used statistical methods in medical research,on the basis of existing st...Statistical analysis is critical in medical research.The objective of this article is to summarize the appropriate use and reporting of commonly used statistical methods in medical research,on the basis of existing statistical guidelines and the authors’experience in reviewing manuscripts,to provide recommendations for statistical applications and reporting.展开更多
Oliver Wendell Holmes’1836 hand written doctorate dissertation on acute pericarditis was discovered in the archives of the Boston Medical Library 101 years after it was successfully defended.It was then printed as an...Oliver Wendell Holmes’1836 hand written doctorate dissertation on acute pericarditis was discovered in the archives of the Boston Medical Library 101 years after it was successfully defended.It was then printed as an unabridged monograph with an explanation of its provenance.The dissertation has received little scrutiny since then.Holmes gathered materials for the scholarly work while he was a third and fourth year student at Ecole de Medecine in Paris.His mentor,Pierre-Charles-Alexandre-Louis insisted on the meticulous gathering and recording of every patient’s history and findings.Each category of data was given a weighted numerical value of diagnostic importance and the information was placed in a registry.Holmes became a disciple of Louis in gathering data by direct observation and measuring outcomes in a“statistical”fashion.Holmes dissertation on acute pericarditis describes the state of knowledge about the illness in the 1830s.When Holmes and other students who had studied in Paris returned to the United States,they helped turn American Medicine from opinion and strong personal bias toward scientific objectivity.Oliver Wendell Holmes eventually became both a professor of anatomy/physiology and a dean at Harvard Medical School.He is recognized as a leader in medicine and a popular author in America and beyond.In his late and infirmed years,Holmes questioned the wisdom of his unswerving advocacy for the scientific underpinnings of medicine.In retrospect he had overlooked the importance of also advocating that each patient be approached with comforting compassion.展开更多
We study the dynamics of tumor cell growth with time-delayed feedback driven by multiplicative noise in an asymmetrical bistable potential well. For a small delay time, the analytical solutions of the probability dist...We study the dynamics of tumor cell growth with time-delayed feedback driven by multiplicative noise in an asymmetrical bistable potential well. For a small delay time, the analytical solutions of the probability distribution and the first passage time show that, with the increasing delay time, the peak of the probability distribution in a lower population state would increase, but in a higher population state it decreases. It is shown that the multiplicative noise and the time delay play opposite roles in the tumor cell growth.展开更多
文摘Objective: To explore the application effect of CBL combined with rain classroom teaching method in medical statistics courses. Methods: The undergraduate students of medical imaging technology in 2019 and 2020 in a university were selected as the research objects. A cluster sampling method was used to select 79 undergraduate students from 2019 in the control group and 75 undergraduate students from 2020 in the experimental group. Traditional teaching method and CBL combined with rain classroom teaching method was used in the control group and experimental group respectively. The final examination scores of the two groups were compared. In experimental group, the correlation between the average score in the rain classroom and the final examination score was tested, and the teaching effect was evaluated. Results: The average score of final examination in experimental group and control group was 79.13 ± 10.32 points and 71.54 ± 14.752 points, respectively, which had a statistically significant difference (Z = 2.586, P = 0.012);the final examination scores of the students in the experimental group were positively correlated with the average scores of the rain classroom (r = 0.372, P = 0.001), and the proportion of satisfaction in the experimental group was 94.7%. Conclusion: The CBL combined with rain classroom teaching method can improve the teaching effectiveness of medical statistics courses.
文摘Statistical analysis is critical in medical research.The objective of this article is to summarize the appropriate use and reporting of commonly used statistical methods in medical research,on the basis of existing statistical guidelines and the authors’experience in reviewing manuscripts,to provide recommendations for statistical applications and reporting.
文摘Oliver Wendell Holmes’1836 hand written doctorate dissertation on acute pericarditis was discovered in the archives of the Boston Medical Library 101 years after it was successfully defended.It was then printed as an unabridged monograph with an explanation of its provenance.The dissertation has received little scrutiny since then.Holmes gathered materials for the scholarly work while he was a third and fourth year student at Ecole de Medecine in Paris.His mentor,Pierre-Charles-Alexandre-Louis insisted on the meticulous gathering and recording of every patient’s history and findings.Each category of data was given a weighted numerical value of diagnostic importance and the information was placed in a registry.Holmes became a disciple of Louis in gathering data by direct observation and measuring outcomes in a“statistical”fashion.Holmes dissertation on acute pericarditis describes the state of knowledge about the illness in the 1830s.When Holmes and other students who had studied in Paris returned to the United States,they helped turn American Medicine from opinion and strong personal bias toward scientific objectivity.Oliver Wendell Holmes eventually became both a professor of anatomy/physiology and a dean at Harvard Medical School.He is recognized as a leader in medicine and a popular author in America and beyond.In his late and infirmed years,Holmes questioned the wisdom of his unswerving advocacy for the scientific underpinnings of medicine.In retrospect he had overlooked the importance of also advocating that each patient be approached with comforting compassion.
基金Supported by the National Natural Science Foundation of China under Grant No 10975063, and the Fundamental Research Pund for Physics and Mathematics of Lanzhou University.
文摘We study the dynamics of tumor cell growth with time-delayed feedback driven by multiplicative noise in an asymmetrical bistable potential well. For a small delay time, the analytical solutions of the probability distribution and the first passage time show that, with the increasing delay time, the peak of the probability distribution in a lower population state would increase, but in a higher population state it decreases. It is shown that the multiplicative noise and the time delay play opposite roles in the tumor cell growth.
