Active rods propelled along their long axis align their velocities and orientations simultaneously in collision.However,as the propulsion is perpendicular to the long axis,velocity alignment becomes dynamically diffic...Active rods propelled along their long axis align their velocities and orientations simultaneously in collision.However,as the propulsion is perpendicular to the long axis,velocity alignment becomes dynamically difficult.Here,we show that ellipsoidal Quincke roller propelled along their short-axis(perpendicular to the long axis)can align their velocities by flipping and form flocking with nematic order.The flipping arises from the reversible transition between the static parallel spinless state and the spinning transversal state of ellipsoidal Quincke rollers.This is possible only near(above)the critical field where both the parallel spinless state and the spinning transversal spinning are metastable.The flipping-facilitated alignment offers an extra aligning mechanism for elongate active agents,and the resulting active liquid crystals serve a model system to explore the defect dynamics as the propulsion deviates from the local nematic orientation which has not been addressed yet.展开更多
Objective:To evaluate the effectiveness of the internal limiting membrane(ILM)flipping and covering technique in the treatment of patients with high myopic macular hole(HMMH).Methods:One hundred and two patients with ...Objective:To evaluate the effectiveness of the internal limiting membrane(ILM)flipping and covering technique in the treatment of patients with high myopic macular hole(HMMH).Methods:One hundred and two patients with HMMH who were admitted to the hospital from June 2019 to June 2024 were selected.The minimum diameter of the macular hole(MH)in all patients was≤500μm.The patients were randomly divided into two groups.The experimental group received 25G pars plana vitrectomy(PPV)combined with ILM flipping and covering technique,while the reference group received PPV combined with ILM peeling.The efficacy indicators and best corrected visual acuity levels were compared between the two groups.Results:The MH closure rate and retinal reattachment rate were higher in the experimental group than in the reference group at 3 and 6 months postoperatively(P<0.05).The best corrected visual acuity level was higher in the experimental group than in the reference group at 3 and 6 months postoperatively(P<0.05).The Chinese version of the Visual Function-Related Quality of Life Questionnaire-25(CVRQOL-25)score was higher in the experimental group than in the reference group at 3 and 6 months postoperatively(P<0.05).No serious complications were observed in both groups postoperatively,and there was no difference between the two groups(P>0.05).Conclusion:The ILM flipping and covering technique can improve the MH closure rate and retinal reattachment rate in patients with HMMH(diameter≤500μm),enhance the best corrected visual acuity level,and improve the quality of life related to visual function,with fewer postoperative complications.展开更多
Coin flipping by telephone protocol（CFP） is utilized in a system to exchange a binary sequence at random between two person apart far from each other. However, CFP cannot he used in a system with many users like in ...Coin flipping by telephone protocol（CFP） is utilized in a system to exchange a binary sequence at random between two person apart far from each other. However, CFP cannot he used in a system with many users like in a group environment system. A transmutation of CFP named T-CFP is proposed in this paper. The precondition of T-CFP is the system＇s user trusts the system center and center＇s cheating is meaningless at the same time. The significant difference between CFP and T-CFP is that CFP supports only two users while T-CFP can support many users to exchange special information. The security and efficiency of T-CFP are discussed with a detailed example on T-CFP utilization is demonstrated in this paper.展开更多
The synthesis,structure,and properties of pyrene-based conformationally adaptive macrocycles are described.This new type of conformationally adaptive macrocycle was constructed through Perkin reaction,followed by imid...The synthesis,structure,and properties of pyrene-based conformationally adaptive macrocycles are described.This new type of conformationally adaptive macrocycle was constructed through Perkin reaction,followed by imidization.By changing the condensation partner as the linking unit,a family of conjugated macrocycles with different sizes of the cavity was synthesized,which provide a simple and modular synthetic strategy towards the conformationally adaptive macrocycles.Furthermore,the macrocycles provide two well-defined conformations through flipping pyrene subunit,which were unambiguously determined by single-crystal X-ray diffraction analysis.The conformational interconversion barrier was determined by density functional theory(DFT)calculations.This new macrocycle also demonstrated unique properties,such as vapochromic behavior and aggregation emission enhancement effect.Furthermore,we have also investigated the effect of the linker on the shape and photophysical properties of the resulting macrocyclic products.展开更多
Tabletop integral imaging display with a more realistic and immersive experience has always been a hot spot in three-dimensional imaging technology,widely used in biomedical imaging and visualization to enhance medica...Tabletop integral imaging display with a more realistic and immersive experience has always been a hot spot in three-dimensional imaging technology,widely used in biomedical imaging and visualization to enhance medical diagnosis.However,the traditional structural characteristics of integral imaging display inevitably introduce the flipping effect outside the effective viewing angle.Here,a full-parallax tabletop integral imaging display without the flipping effect based on space-multiplexed voxel screen and compound lens array is demonstrated,and two holographic functional screens with different parameters are optically designed and fabricated.To eliminate the flipping effect in the reconstruction process,the space-multiplexed voxel screen consisting of a projector array and the holographic functional screen is presented to constrain light beams passing through the corresponding lens.To greatly promote imaging quality within the viewing area,the aspherical structure of the compound lens is optimized to balance the aberrations.It cooperates with the holographic functional screen to modulate the light field spatial distribution.Compared with the simulation results,the distortion rate of the imaging display is reduced to less than 9%from more than 30%.In the experiment,the floating high-quality reconstructed three-dimensional image without the flipping effect can be observed with the correct 3D perception at 96°×96°viewing angle,where 44,100 viewpoints are employed.展开更多
Because of the speed limitation of the conventional bit-selection strategy in the exi- sting weighted bit flipping algorithms, a high- speed Low-Density Parity-Check （LDPC） dec- oder cannot be realised. To solve thi...Because of the speed limitation of the conventional bit-selection strategy in the exi- sting weighted bit flipping algorithms, a high- speed Low-Density Parity-Check （LDPC） dec- oder cannot be realised. To solve this problem, we propose a fast weighted bit flipping algo- rithm. Specifically, based on the identically dis- tributed error bits, a parallel bit-selection met- hod is proposed to reduce the selection delay of the flipped bits. The delay analysis demon- strates that, the decoding speed of LDPC codes can be significantly improved by the proposed algorithm. Furthermore, simulation results ver- ify the validity of the proposed algorithm.展开更多
At present grammar teaching is one of the most difficult points because of the limited teaching time and emphasizing on terminology memory and rules of understanding, therefore, students think learning grammar is bori...At present grammar teaching is one of the most difficult points because of the limited teaching time and emphasizing on terminology memory and rules of understanding, therefore, students think learning grammar is boring and ineffective. For the reason, the effectiveness of college English grammar teaching based on flipping classroom is analyzed.展开更多
The flipped classroom is an emerging teaching mode which is originated from the United States and is now prevalent in many countries. It is helpful to build a more harmonious relationship between the teachers and the ...The flipped classroom is an emerging teaching mode which is originated from the United States and is now prevalent in many countries. It is helpful to build a more harmonious relationship between the teachers and the students, to enhance the students＇ self-study ability, to create a favorable learning environment, to realize the individualized teaching in class, and to improve the students＇ English ability. The study focuses on the college English classroom in China. The author tries to prove that the flipped classroom is a helpful way to improve the teaching and learning effect of college English classroom. A teaching procedure for the flipped college English classroom is designed in the hope of changing the current college English teaching condition.展开更多
Polar codes are considered as one of the most competitive channel coding schemes for the future wireless communication system.To improve the performance of polar codes with short code-length for control channels,a sph...Polar codes are considered as one of the most competitive channel coding schemes for the future wireless communication system.To improve the performance of polar codes with short code-length for control channels,a sphere decoding algorithm based on received value flipping is proposed in this paper.When a codeword fails the cyclic redundancy check,the algorithm flips the received value with low reliability and forms a new received sequence.Then,this new sequence is sent to the decoder for another decoding attempt.In addition,we also compare the performance of different flipping sets and evaluate the influence of the associated flipping set sizes.Simulation results show that,the proposed algorithm can achieve performance improvement over additive white Gaussian noise channel with acceptable complexity.For the(64,16)polar code,the proposed algorithm can achieve about 0.23 dB 10-3performance gain at frame error rate=,compared to the conventional sphere decoding algorithm.Finally,we also verify the applicability of the proposed algorithm over Rayleigh fading channel and observe similar results.展开更多
Magnetite Fe304 （ferrite） has attracted considerable interest for its exceptional physical properties： It is predicted to be a semimetallic ferromagnetic with a high Curie temperature, it displays a metal-insulator...Magnetite Fe304 （ferrite） has attracted considerable interest for its exceptional physical properties： It is predicted to be a semimetallic ferromagnetic with a high Curie temperature, it displays a metal-insulator transition, and has potential oxide-electronics applications. Here, we fabricate a high-magnetization （〉 1 Tesla） high-resistance （-0.1 Ωcm） sub-nanostructured （grain size 〈 3 nm） Fe304 film via grain-size control and nano-engineering. We report a new phenomenon of spin- flipping of the valence-spin tetrahedral FeB＊ in the sub-nanostructured Fe304 film, which produces the high magnetization. Using soft X-ray magnetic circular dichroism and soft X-ray absorption, both at the Fe L3,2- and O K-edges, and supported by first-principles and charge-transfer multiple calculations, we observe an anomalous enhancement of double exchange, accompanied by a suppression of the superexchange interactions because of the spin-flipping mechanism via oxygen at the grain boundaries. Our result may open avenues for developing spin- manipulated giant magnetic Fe304-based compounds via nano-grain size control.展开更多
Recently,it was demonstrated that implicit solvent models were capable of generating stable B-form DNA structures.Specifically,generalized Born(GB)implicit solvent models have improved regarding the solvation of confo...Recently,it was demonstrated that implicit solvent models were capable of generating stable B-form DNA structures.Specifically,generalized Born(GB)implicit solvent models have improved regarding the solvation of conformational sampling of DNA[1,2].Here,we examine the performance of the GBSW and GBMV models in CHARMM for characterizing base flipping free energy profiles of undamaged and damaged DNA bases.Umbrella sampling of the base flipping process was performed for the bases cytosine,uracil and xanthine.The umbrella sampling simulations were carried-out with both explicit(TIP3P)and implicit(GB)solvent in order to establish the impact of the solvent model on base flipping.Overall,base flipping potential of mean force(PMF)profiles generated with GB solvent resulted in a greater free energy difference of flipping than profiles generated with TIP3P.One of the significant differences between implicit and explicit solvent models is the approximation of solute-solvent interactions in implicit solvent models.We calculated electrostatic interaction energies between explicit water molecules and the base targeted for flipping.These interaction energies were calculated over the base flipping reaction coordinate to illustrate the stabilizing effect of the explicit water molecules on the flipped-out state.It is known that nucleic base pair hydrogen bonds also influenced the free energy of flipping since these favorable interactions must be broken in order for a base to flip-out of the helix.The Watson-Crick base pair hydrogen bond fractions were calculated over the umbrella sampling simulation windows in order to determine the effect of base pair interactions on the base flipping free energy.It is shown that interaction energies between the flipping base and explicit water molecules are responsible for the lower base flipping free energy difference in the explicit solvent PMF profiles.展开更多
Flipped is a book written by American author Wendelin Van Draanen. It is a novel about young teenagers and was adapted into the famous film of the same name in 2010. The thesis employs speech acts, as pioneered by Joh...Flipped is a book written by American author Wendelin Van Draanen. It is a novel about young teenagers and was adapted into the famous film of the same name in 2010. The thesis employs speech acts, as pioneered by John Austin and further developed by John Searle, to investigate the influence of dialogues on characterization and plot development in Flipped. By exploring the theory of speech acts presented in dialogues between characters, the author deciphers the underlying intentions embodied in the dialogues and demonstrates the importance of the use of speech acts in dialogues in revealing the characters, driving the development of the plot and expressing the theme of the text.展开更多
Objective:To explore the application effect of group cooperative learning combined with flipped classroom in standardized training of emergency surgery resident physicians.Methods:95 resident physicians undergoing eme...Objective:To explore the application effect of group cooperative learning combined with flipped classroom in standardized training of emergency surgery resident physicians.Methods:95 resident physicians undergoing emergency surgery standardized training in our hospital were randomly divided into an experimental group(46,group cooperative learning+flipped classroom)and a control group(49,traditional teaching).The training period was 2 months.Results:The graduation assessment scores of the experimental group were higher than those of the control group(P<0.05).The improvement in critical thinking ability and self-learning ability was better than that of the control group(P<0.05).The response rate of“yes”to all items of course teaching satisfaction was significantly higher than that of the control group(P<0.05).The satisfaction scores for training teachers were higher than those of the control group(P<0.05).Conclusion:The teaching model of group cooperative learning combined with flipped classroom,through reconstructing the learning process and activating interactive participation,can significantly improve the clinical operation and theoretical foundation of emergency surgery standardized training students.It also cultivates core professional qualities such as critical thinking,self-learning,and team collaboration,providing a feasible paradigm for integrated medical education in this discipline.展开更多
基金financial support of the National Natural Science Foundation of China(Grant No.11974255)。
文摘Active rods propelled along their long axis align their velocities and orientations simultaneously in collision.However,as the propulsion is perpendicular to the long axis,velocity alignment becomes dynamically difficult.Here,we show that ellipsoidal Quincke roller propelled along their short-axis(perpendicular to the long axis)can align their velocities by flipping and form flocking with nematic order.The flipping arises from the reversible transition between the static parallel spinless state and the spinning transversal state of ellipsoidal Quincke rollers.This is possible only near(above)the critical field where both the parallel spinless state and the spinning transversal spinning are metastable.The flipping-facilitated alignment offers an extra aligning mechanism for elongate active agents,and the resulting active liquid crystals serve a model system to explore the defect dynamics as the propulsion deviates from the local nematic orientation which has not been addressed yet.
文摘Objective:To evaluate the effectiveness of the internal limiting membrane(ILM)flipping and covering technique in the treatment of patients with high myopic macular hole(HMMH).Methods:One hundred and two patients with HMMH who were admitted to the hospital from June 2019 to June 2024 were selected.The minimum diameter of the macular hole(MH)in all patients was≤500μm.The patients were randomly divided into two groups.The experimental group received 25G pars plana vitrectomy(PPV)combined with ILM flipping and covering technique,while the reference group received PPV combined with ILM peeling.The efficacy indicators and best corrected visual acuity levels were compared between the two groups.Results:The MH closure rate and retinal reattachment rate were higher in the experimental group than in the reference group at 3 and 6 months postoperatively(P<0.05).The best corrected visual acuity level was higher in the experimental group than in the reference group at 3 and 6 months postoperatively(P<0.05).The Chinese version of the Visual Function-Related Quality of Life Questionnaire-25(CVRQOL-25)score was higher in the experimental group than in the reference group at 3 and 6 months postoperatively(P<0.05).No serious complications were observed in both groups postoperatively,and there was no difference between the two groups(P>0.05).Conclusion:The ILM flipping and covering technique can improve the MH closure rate and retinal reattachment rate in patients with HMMH(diameter≤500μm),enhance the best corrected visual acuity level,and improve the quality of life related to visual function,with fewer postoperative complications.
基金Supported by the National Natural Science Foun-dation of China(60473072)
文摘Coin flipping by telephone protocol（CFP） is utilized in a system to exchange a binary sequence at random between two person apart far from each other. However, CFP cannot he used in a system with many users like in a group environment system. A transmutation of CFP named T-CFP is proposed in this paper. The precondition of T-CFP is the system＇s user trusts the system center and center＇s cheating is meaningless at the same time. The significant difference between CFP and T-CFP is that CFP supports only two users while T-CFP can support many users to exchange special information. The security and efficiency of T-CFP are discussed with a detailed example on T-CFP utilization is demonstrated in this paper.
基金supported by the National Natural Science Foundation of China(Nos.21971041 and 22001039)Natural Science Foundation of Fujian Province(Nos.2018J01431,2018J01690 and 2020J01447)Research Foundation of Education Bureau of Fujian Province(No.JT180813)。
文摘The synthesis,structure,and properties of pyrene-based conformationally adaptive macrocycles are described.This new type of conformationally adaptive macrocycle was constructed through Perkin reaction,followed by imidization.By changing the condensation partner as the linking unit,a family of conjugated macrocycles with different sizes of the cavity was synthesized,which provide a simple and modular synthetic strategy towards the conformationally adaptive macrocycles.Furthermore,the macrocycles provide two well-defined conformations through flipping pyrene subunit,which were unambiguously determined by single-crystal X-ray diffraction analysis.The conformational interconversion barrier was determined by density functional theory(DFT)calculations.This new macrocycle also demonstrated unique properties,such as vapochromic behavior and aggregation emission enhancement effect.Furthermore,we have also investigated the effect of the linker on the shape and photophysical properties of the resulting macrocyclic products.
基金The Basic Research Fund of Central-Level Nonprofit Scientific Research Institutes(No.TKS20220304)The Key Research and Development Projects of Guangxi Science and Technology Department(No.2021AB05087).
文摘Tabletop integral imaging display with a more realistic and immersive experience has always been a hot spot in three-dimensional imaging technology,widely used in biomedical imaging and visualization to enhance medical diagnosis.However,the traditional structural characteristics of integral imaging display inevitably introduce the flipping effect outside the effective viewing angle.Here,a full-parallax tabletop integral imaging display without the flipping effect based on space-multiplexed voxel screen and compound lens array is demonstrated,and two holographic functional screens with different parameters are optically designed and fabricated.To eliminate the flipping effect in the reconstruction process,the space-multiplexed voxel screen consisting of a projector array and the holographic functional screen is presented to constrain light beams passing through the corresponding lens.To greatly promote imaging quality within the viewing area,the aspherical structure of the compound lens is optimized to balance the aberrations.It cooperates with the holographic functional screen to modulate the light field spatial distribution.Compared with the simulation results,the distortion rate of the imaging display is reduced to less than 9%from more than 30%.In the experiment,the floating high-quality reconstructed three-dimensional image without the flipping effect can be observed with the correct 3D perception at 96°×96°viewing angle,where 44,100 viewpoints are employed.
基金supported in part by the National Natural Science Foundation of China under Grant No.61072069the Fundamental Research Funds for the Central Universities under Grant No.72001859+1 种基金the Important National Science and Technology Specific Projects under Grant No.2011ZX03003-001-04the One Church,One Family,One Purpose Project(111 Project)under Grant No.B08038
文摘Because of the speed limitation of the conventional bit-selection strategy in the exi- sting weighted bit flipping algorithms, a high- speed Low-Density Parity-Check （LDPC） dec- oder cannot be realised. To solve this problem, we propose a fast weighted bit flipping algo- rithm. Specifically, based on the identically dis- tributed error bits, a parallel bit-selection met- hod is proposed to reduce the selection delay of the flipped bits. The delay analysis demon- strates that, the decoding speed of LDPC codes can be significantly improved by the proposed algorithm. Furthermore, simulation results ver- ify the validity of the proposed algorithm.
文摘At present grammar teaching is one of the most difficult points because of the limited teaching time and emphasizing on terminology memory and rules of understanding, therefore, students think learning grammar is boring and ineffective. For the reason, the effectiveness of college English grammar teaching based on flipping classroom is analyzed.
文摘The flipped classroom is an emerging teaching mode which is originated from the United States and is now prevalent in many countries. It is helpful to build a more harmonious relationship between the teachers and the students, to enhance the students＇ self-study ability, to create a favorable learning environment, to realize the individualized teaching in class, and to improve the students＇ English ability. The study focuses on the college English classroom in China. The author tries to prove that the flipped classroom is a helpful way to improve the teaching and learning effect of college English classroom. A teaching procedure for the flipped college English classroom is designed in the hope of changing the current college English teaching condition.
基金supported by the National Natural Science Foundation of China(Nos.61961004,62261003,and 62361003)the Key Research and Development Program of Guangxi(No.GuiKeAB22080048)the Counterpart Aid Project for Discipline Construction from Guangxi University(No.2023N04).
文摘Polar codes are considered as one of the most competitive channel coding schemes for the future wireless communication system.To improve the performance of polar codes with short code-length for control channels,a sphere decoding algorithm based on received value flipping is proposed in this paper.When a codeword fails the cyclic redundancy check,the algorithm flips the received value with low reliability and forms a new received sequence.Then,this new sequence is sent to the decoder for another decoding attempt.In addition,we also compare the performance of different flipping sets and evaluate the influence of the associated flipping set sizes.Simulation results show that,the proposed algorithm can achieve performance improvement over additive white Gaussian noise channel with acceptable complexity.For the(64,16)polar code,the proposed algorithm can achieve about 0.23 dB 10-3performance gain at frame error rate=,compared to the conventional sphere decoding algorithm.Finally,we also verify the applicability of the proposed algorithm over Rayleigh fading channel and observe similar results.
文摘Magnetite Fe304 （ferrite） has attracted considerable interest for its exceptional physical properties： It is predicted to be a semimetallic ferromagnetic with a high Curie temperature, it displays a metal-insulator transition, and has potential oxide-electronics applications. Here, we fabricate a high-magnetization （〉 1 Tesla） high-resistance （-0.1 Ωcm） sub-nanostructured （grain size 〈 3 nm） Fe304 film via grain-size control and nano-engineering. We report a new phenomenon of spin- flipping of the valence-spin tetrahedral FeB＊ in the sub-nanostructured Fe304 film, which produces the high magnetization. Using soft X-ray magnetic circular dichroism and soft X-ray absorption, both at the Fe L3,2- and O K-edges, and supported by first-principles and charge-transfer multiple calculations, we observe an anomalous enhancement of double exchange, accompanied by a suppression of the superexchange interactions because of the spin-flipping mechanism via oxygen at the grain boundaries. Our result may open avenues for developing spin- manipulated giant magnetic Fe304-based compounds via nano-grain size control.
基金supported by National Science Foundation Career Award MCB-0953783(to B.N.D.).
文摘Recently,it was demonstrated that implicit solvent models were capable of generating stable B-form DNA structures.Specifically,generalized Born(GB)implicit solvent models have improved regarding the solvation of conformational sampling of DNA[1,2].Here,we examine the performance of the GBSW and GBMV models in CHARMM for characterizing base flipping free energy profiles of undamaged and damaged DNA bases.Umbrella sampling of the base flipping process was performed for the bases cytosine,uracil and xanthine.The umbrella sampling simulations were carried-out with both explicit(TIP3P)and implicit(GB)solvent in order to establish the impact of the solvent model on base flipping.Overall,base flipping potential of mean force(PMF)profiles generated with GB solvent resulted in a greater free energy difference of flipping than profiles generated with TIP3P.One of the significant differences between implicit and explicit solvent models is the approximation of solute-solvent interactions in implicit solvent models.We calculated electrostatic interaction energies between explicit water molecules and the base targeted for flipping.These interaction energies were calculated over the base flipping reaction coordinate to illustrate the stabilizing effect of the explicit water molecules on the flipped-out state.It is known that nucleic base pair hydrogen bonds also influenced the free energy of flipping since these favorable interactions must be broken in order for a base to flip-out of the helix.The Watson-Crick base pair hydrogen bond fractions were calculated over the umbrella sampling simulation windows in order to determine the effect of base pair interactions on the base flipping free energy.It is shown that interaction energies between the flipping base and explicit water molecules are responsible for the lower base flipping free energy difference in the explicit solvent PMF profiles.
文摘Flipped is a book written by American author Wendelin Van Draanen. It is a novel about young teenagers and was adapted into the famous film of the same name in 2010. The thesis employs speech acts, as pioneered by John Austin and further developed by John Searle, to investigate the influence of dialogues on characterization and plot development in Flipped. By exploring the theory of speech acts presented in dialogues between characters, the author deciphers the underlying intentions embodied in the dialogues and demonstrates the importance of the use of speech acts in dialogues in revealing the characters, driving the development of the plot and expressing the theme of the text.
基金Key Research and Development Program of Shaanxi Province,“Exploring the Changes and Mechanisms of Cerebral Microcirculation in Patients with Cerebral Small Vessel Disease and Mild Cognitive Impairment Based on OCTA Assessment”(Project No.:2023-YBSF-569)Shaanxi Provincial People’s Hospital Science and Technology Development Incubation Fund,“Early Identification of Cognitive Impairment in Cerebral Small Vessel Disease Based on Eye Tracking Technology”(Project No.:2023YJY-72)Key Research and Development Program of Shaanxi Province,“Study on the Correlation between Deep Medullary Veins and Cognitive Dysfunction in Cerebral Small Vessel Disease”(Project No.:2023-YBSF-033)。
文摘Objective:To explore the application effect of group cooperative learning combined with flipped classroom in standardized training of emergency surgery resident physicians.Methods:95 resident physicians undergoing emergency surgery standardized training in our hospital were randomly divided into an experimental group(46,group cooperative learning+flipped classroom)and a control group(49,traditional teaching).The training period was 2 months.Results:The graduation assessment scores of the experimental group were higher than those of the control group(P<0.05).The improvement in critical thinking ability and self-learning ability was better than that of the control group(P<0.05).The response rate of“yes”to all items of course teaching satisfaction was significantly higher than that of the control group(P<0.05).The satisfaction scores for training teachers were higher than those of the control group(P<0.05).Conclusion:The teaching model of group cooperative learning combined with flipped classroom,through reconstructing the learning process and activating interactive participation,can significantly improve the clinical operation and theoretical foundation of emergency surgery standardized training students.It also cultivates core professional qualities such as critical thinking,self-learning,and team collaboration,providing a feasible paradigm for integrated medical education in this discipline.
