By applying multiple wavelet coherence (MWC) to data from human body movements in triadic interaction, this study quantified triadic synchrony, rhythmic similarity among three interactants. Thirty-nine Japanese underg...By applying multiple wavelet coherence (MWC) to data from human body movements in triadic interaction, this study quantified triadic synchrony, rhythmic similarity among three interactants. Thirty-nine Japanese undergraduates were randomly assigned in a triad, and engaged in a brain-storming task. Triadic synchrony was quantified by calculating MWC to the time-series movement data collected by Kinect v2 sensor. The existence of synchrony was statistically tested by using a pseudo-synchrony paradigm. Results showed that the averaged value of MWC was higher in the experimental participant trio than in those of the pseudo trio in the frequency band of 0.5 - 1 Hz. The result supports the possible utility of applying multiple wavelet coherence to evaluate triadic synchrony in a small group interaction.展开更多
Learning in small groups is a key instructional strategy in medicine and more so in the problem based curriculum （PBL）. It is perceived that working in small groups enhances acquisition, processing and retention of ...Learning in small groups is a key instructional strategy in medicine and more so in the problem based curriculum （PBL）. It is perceived that working in small groups enhances acquisition, processing and retention of the ever increasing medical knowledge. Learning in small group will help the students to be better learner and improve their personal, social and cognitive skills. The objective of this study is to describe undergraduate medical students＇ perception toward small group learning in a PBL curriculum. A cross-sectional descriptive study was conducted among the undergraduate medical students in the phase 2 of their MBBS program at University of Sharjah. A total of 277 undergraduate medical students participated in the study. The mean age of the study population was 20 years and 61% were female students. The most rewarding experiences as perceived by medical students were exposure to different views （71%）, making friends （57%） improving their grades （52%） and underwent personal development （46%）. The main disadvantages of small group learning were waste of time （55%）, side talks （16%）, and other distractions （14%）. Majority of students had a positive perception towards small group learning and agreed that it enhances their collaborative learning and team work skills. Small group learning was perceived as a key instructional method in the PBL curriculum [3] and it enhances their grades, learning outcomes, personal development and critical thinking abilities [4].展开更多
In view of the fact that most college English teachers in China invest a great deal of time andeffort responding to students’ writing,but find students improve so little in their writing skills,I ventureto put forwar...In view of the fact that most college English teachers in China invest a great deal of time andeffort responding to students’ writing,but find students improve so little in their writing skills,I ventureto put forward an alternative way of teaching writing in the paper,that is,teaching writing throughsmall group conferencing.Compared with the traditional teaching methods,small group conferencing hasfollowing advantages:(1)Saving evaluation time;(2)Providing better feedback;(3)Helping studentscritique their writing,etc.Since many empirical studies and teaching practices demonstrate that smallgroup conferencing is an effective and efficient way of teaching writing,we have good reason to believethat it will become widespread in the college English teaching in China.展开更多
Public communication infrastructures are susceptible to disasters. Thus, the Emergency Communication Networks(ECNs) of small groups are necessary to maintain real-time communication during disasters. Given that ECNs a...Public communication infrastructures are susceptible to disasters. Thus, the Emergency Communication Networks(ECNs) of small groups are necessary to maintain real-time communication during disasters. Given that ECNs are self-built by users, the unavailability of infrastructures and the openness of wireless channels render them insecure. ECN security, however, is a rarely studied issue despite of its importance. Here, we propose a security scheme for the ECNs of small groups. Our scheme is based on the optimized Byzantine Generals’ Problem combined with the analysis of trusted security problems in ECNs. Applying the Byzantine Generals’ Problem to ECNs is a novel approach to realize two new functions, debugging and error correction, for ensuring system consistency and accuracy. Given the limitation of terminal devices, the lightweight fast ECDSA algorithm is introduced to guarantee the integrity and security of communication and the efficiency of the network. We implement a simulation to verify the feasibility of the algorithm after theoretical optimization.展开更多
It was found that phosphorylation of small peptide could improve the sensitivity in mass spectrometry. Density functional theory calculations showed that the energy for the protonation of N-(O,O'-dimethyl) phospho...It was found that phosphorylation of small peptide could improve the sensitivity in mass spectrometry. Density functional theory calculations showed that the energy for the protonation of N-(O,O'-dimethyl) phosphoryl glycylglycine is lower than that of glycylglycine. These could help to understanding the experimental results.展开更多
In view of the fact that most college English teachers in China invest a great deal of time and effort responding to students’ writing, but find students improve so little in their writing skills, I venture to put fo...In view of the fact that most college English teachers in China invest a great deal of time and effort responding to students’ writing, but find students improve so little in their writing skills, I venture to put forward an alternative way of teaching writing in the paper, that is, teaching writing through small group conferencing. Compared with the traditional teaching methods small group conferencing has following advantages: (1) Saving evaluation time; (2) Providing better feedback; (3) Helping students critique their writing, etc. Since many empirical studies and teaching practices demonstrate that small group conferencing is an effective and efficient way of teaching writing, we have good reason to believe that it will become widespread in the college English teaching in China. \;展开更多
Here we were at a picturesque village inhabited by the ethnic Kinos, one of the smallest ethnic minority groups in China. Immediately beyond the village, Bapiao, a highway snakes deep into the rolling mountains until ...Here we were at a picturesque village inhabited by the ethnic Kinos, one of the smallest ethnic minority groups in China. Immediately beyond the village, Bapiao, a highway snakes deep into the rolling mountains until it reaches Jinghong, the capital city of Xishuangbanna Dai Autonomous Prefecture, Yunnan Province. When New China was founded in 1949, there were no more than 3,800 ethnic Kinos engaging in slash-and-bum farming for a meager subistence in those deep, subtropical lbrests. Now the Kino population has multiplied, and they have settled in 45 villages under the jurisdiction of a self-governing township.展开更多
As a form of speaking practice,small-group discussion can be effective in that it makes learners less anxious about expressing themselves.Being topic-based,small-group discussion prepares learners for a wide range of ...As a form of speaking practice,small-group discussion can be effective in that it makes learners less anxious about expressing themselves.Being topic-based,small-group discussion prepares learners for a wide range of topics and requires them to think critically.Language skills and communicative skills are honed during discussions.These advantages validate the effectiveness of small-group discussion as a form of speaking practice and entail proper execution in classes.展开更多
Classroom interaction plays a critical role in language teaching and learning process.It involves both the teacher-students,and students-students.This article is intended to explore the vital significance of classroom...Classroom interaction plays a critical role in language teaching and learning process.It involves both the teacher-students,and students-students.This article is intended to explore the vital significance of classroom interaction in language learning process with the emphasis placed on the students' involvement in the classroom activities,furthermore,to discover whether the peers small-sized group work is a beneficial and irreplaceable form of classroom interaction.展开更多
This article makes an investigation of 114 English majors＇ level of a particular communicative performance and the general ability to perform in small-group conversations in their conversation class, and thereafter e...This article makes an investigation of 114 English majors＇ level of a particular communicative performance and the general ability to perform in small-group conversations in their conversation class, and thereafter explores the reasons for their current level with the aid of questionnaire based on a rating scale, together with observation and interviews. Some countermeasures are provided to call for teachers＇ attention in their teaching practice.展开更多
文摘By applying multiple wavelet coherence (MWC) to data from human body movements in triadic interaction, this study quantified triadic synchrony, rhythmic similarity among three interactants. Thirty-nine Japanese undergraduates were randomly assigned in a triad, and engaged in a brain-storming task. Triadic synchrony was quantified by calculating MWC to the time-series movement data collected by Kinect v2 sensor. The existence of synchrony was statistically tested by using a pseudo-synchrony paradigm. Results showed that the averaged value of MWC was higher in the experimental participant trio than in those of the pseudo trio in the frequency band of 0.5 - 1 Hz. The result supports the possible utility of applying multiple wavelet coherence to evaluate triadic synchrony in a small group interaction.
文摘Learning in small groups is a key instructional strategy in medicine and more so in the problem based curriculum （PBL）. It is perceived that working in small groups enhances acquisition, processing and retention of the ever increasing medical knowledge. Learning in small group will help the students to be better learner and improve their personal, social and cognitive skills. The objective of this study is to describe undergraduate medical students＇ perception toward small group learning in a PBL curriculum. A cross-sectional descriptive study was conducted among the undergraduate medical students in the phase 2 of their MBBS program at University of Sharjah. A total of 277 undergraduate medical students participated in the study. The mean age of the study population was 20 years and 61% were female students. The most rewarding experiences as perceived by medical students were exposure to different views （71%）, making friends （57%） improving their grades （52%） and underwent personal development （46%）. The main disadvantages of small group learning were waste of time （55%）, side talks （16%）, and other distractions （14%）. Majority of students had a positive perception towards small group learning and agreed that it enhances their collaborative learning and team work skills. Small group learning was perceived as a key instructional method in the PBL curriculum [3] and it enhances their grades, learning outcomes, personal development and critical thinking abilities [4].
文摘In view of the fact that most college English teachers in China invest a great deal of time andeffort responding to students’ writing,but find students improve so little in their writing skills,I ventureto put forward an alternative way of teaching writing in the paper,that is,teaching writing throughsmall group conferencing.Compared with the traditional teaching methods,small group conferencing hasfollowing advantages:(1)Saving evaluation time;(2)Providing better feedback;(3)Helping studentscritique their writing,etc.Since many empirical studies and teaching practices demonstrate that smallgroup conferencing is an effective and efficient way of teaching writing,we have good reason to believethat it will become widespread in the college English teaching in China.
文摘Public communication infrastructures are susceptible to disasters. Thus, the Emergency Communication Networks(ECNs) of small groups are necessary to maintain real-time communication during disasters. Given that ECNs are self-built by users, the unavailability of infrastructures and the openness of wireless channels render them insecure. ECN security, however, is a rarely studied issue despite of its importance. Here, we propose a security scheme for the ECNs of small groups. Our scheme is based on the optimized Byzantine Generals’ Problem combined with the analysis of trusted security problems in ECNs. Applying the Byzantine Generals’ Problem to ECNs is a novel approach to realize two new functions, debugging and error correction, for ensuring system consistency and accuracy. Given the limitation of terminal devices, the lightweight fast ECDSA algorithm is introduced to guarantee the integrity and security of communication and the efficiency of the network. We implement a simulation to verify the feasibility of the algorithm after theoretical optimization.
基金The authors thank the National Natural Science Foundation of China(No.39870415)the Ministry of Science and Technology of China,the Education Ministry of China and Tsinghua University for financial suport.
文摘It was found that phosphorylation of small peptide could improve the sensitivity in mass spectrometry. Density functional theory calculations showed that the energy for the protonation of N-(O,O'-dimethyl) phosphoryl glycylglycine is lower than that of glycylglycine. These could help to understanding the experimental results.
文摘In view of the fact that most college English teachers in China invest a great deal of time and effort responding to students’ writing, but find students improve so little in their writing skills, I venture to put forward an alternative way of teaching writing in the paper, that is, teaching writing through small group conferencing. Compared with the traditional teaching methods small group conferencing has following advantages: (1) Saving evaluation time; (2) Providing better feedback; (3) Helping students critique their writing, etc. Since many empirical studies and teaching practices demonstrate that small group conferencing is an effective and efficient way of teaching writing, we have good reason to believe that it will become widespread in the college English teaching in China. \;
文摘Here we were at a picturesque village inhabited by the ethnic Kinos, one of the smallest ethnic minority groups in China. Immediately beyond the village, Bapiao, a highway snakes deep into the rolling mountains until it reaches Jinghong, the capital city of Xishuangbanna Dai Autonomous Prefecture, Yunnan Province. When New China was founded in 1949, there were no more than 3,800 ethnic Kinos engaging in slash-and-bum farming for a meager subistence in those deep, subtropical lbrests. Now the Kino population has multiplied, and they have settled in 45 villages under the jurisdiction of a self-governing township.
文摘As a form of speaking practice,small-group discussion can be effective in that it makes learners less anxious about expressing themselves.Being topic-based,small-group discussion prepares learners for a wide range of topics and requires them to think critically.Language skills and communicative skills are honed during discussions.These advantages validate the effectiveness of small-group discussion as a form of speaking practice and entail proper execution in classes.
文摘Classroom interaction plays a critical role in language teaching and learning process.It involves both the teacher-students,and students-students.This article is intended to explore the vital significance of classroom interaction in language learning process with the emphasis placed on the students' involvement in the classroom activities,furthermore,to discover whether the peers small-sized group work is a beneficial and irreplaceable form of classroom interaction.
文摘This article makes an investigation of 114 English majors＇ level of a particular communicative performance and the general ability to perform in small-group conversations in their conversation class, and thereafter explores the reasons for their current level with the aid of questionnaire based on a rating scale, together with observation and interviews. Some countermeasures are provided to call for teachers＇ attention in their teaching practice.
