The purpose of this study was to investigate: (a) the characteristics online students’ cognitive presence in a peer-facilitated discussion environment, and (b) peer facilitation techniques that enhance development. In study, we examined 738 messages. Analytic methods included both qualitative quantitative content analysis. findings revealed although detected most messages, they aggregated at lower level. involvement facilitators found correlate with higher-level presence. addition, types...

Journal writing is an important and common reflective practice in education. Students' reflection journals also offer a rich source of data for formative assessment. However, the analysis textual reflections class large size presents challenges. Automatic students' holds great promise providing adaptive real time support students. This paper proposes method based on topic modeling techniques task themes exploration grade prediction. We evaluated this sample journal writings from pre-service...

Speech emotion recognition (SER) aims to recognize human emotions through in-depth analysis of audio signals. However, it remains challenging encode emotional cues and fuse the encoded effectively. In this study, dual-stream representation is developed, both full training fine-tuning different deep networks are employed for encoding patterns. Specifically, a cross-attention fusion (CAF) module designed integrate output recognition. Using encoders (fully text processing network pre-trained...

Abstract With an increased interest in makerspace K‐12 education, professional development (PD) is needed to equip teachers with the knowledge, skills and dispositions effectively incorporate maker technology teaching. This study examined a virtual PD programme improve teachers' attitudes beliefs teaching technology. Data were collected from 43 in‐service schoolteachers through project artefacts, survey questionnaires reflection journals. Results of qualitative quantitative analyses show...

With a large-scale online K-12 teacher professional development course as the research context, this study examined effects of facilitating feedback on learners’ cognitive engagement using quasi-experiment method. A total 1,540 discussion messages from 110 learners (65 in experimental group and 45 control group) were both quantitatively qualitatively analyzed. Results revealed that significantly impacted engagement: (1) level presented treatment was higher than group; (2) levels original...

The inhibition effects of high potassium concentration on thermophilic anaerobic digestion swine waste were studied. A continuous stirred tank reactor (CSTR), operated at a hydraulic retention time 10 days and chemical oxygen demand loading 7.2 to 7.5 g/L/d, was used digest cultivate microorganisms. To evaluate the toxicity potassium, batch tests also conducted. Without acclimation threshold beyond which methane production decreased significantly 3 g K+/L. Volatile fatty acids accumulation...

Prior research shows that parents' phubbing has negative impacts on children's well-being. The aim of our study was to explore the relationship between father (FPh) and adolescents' depressive symptoms, mediating moderating mechanisms in this relationship. That is, whether FPh would be positively related perceived acceptance (PFA) a mediator adolescent resilience moderator pathways symptoms. In study, 3,770 Chinese adolescents (M = 16.44 years, SD 0.78) were surveyed about their...

Abstract This study explored two different ways for K‐12 school teachers to access educational makerspace through virtual fieldtrips. from rural areas of the Southeast USA were divided into groups. The experimental group ( n = 48) drove telepresence robots take their fieldtrip, while comparison 23) watched same fieldtrip a recorded video. Analyses quantitative and qualitative data, collected surveys written reflections, showed that reported significantly higher scores in embodiment, social...

The development of college students' physical fitness has become an area great concern in Chinese university education. This study aims to explore the effects education teaching informatization on through quasi-experimental research methods. Through introduction methods courses, a more effective learning and process can be achieved. In this study, 15 freshmen from Guangzhou Software College were selected as respondents, relying Internet, eight-week informatized was carried out using video...

A novel method for the two-phase flow measurement based on multisensor fusion system of electrical resistance tomography (ERT) and electromagnetic flowmeter is proposed. As important research content system, ac impedance model array electrodes ERT set up analyzed principle electrochemical properties sensing electrode material in flow. The can provide theoretic guidance design new-generation systems study systems.

This study focused on the integration of technologies in regular science teaching within pedagogical framework modeling-based instruction (MBI), a well-established instructional method education, and aimed to identify new trends technology MBI, explore particular features (Interactivity, Collaboration, Scaffolding) affordances technologies, examine effect technology-supported MBI students learning outcomes. By analyzing empirical studies from 2000 2010 through meta-analysis qualitatively...

With the advance of Maker movement, teacher professional development is needed to prepare K-12 teachers for maker-centered instruction. This study examined influence teaching experience in learning Data included surveys, 3D models, and maker lesson plans created by 162 in-service teachers. Results show that, overall, years did not make a difference knowledge, attitudes, design lessons between veteran novice Both groups held positive yet were concerned with limited knowledge skills. After...

This study explores the practices of distributed teaching presence (DTP) to promote students’ shared metacognitive responsibilities in online learning. The DTP included providing explicit instruction on techniques and guiding students label their cognitive discussion. Data were collected through asynchronous discussion a questionnaire survey from 53 enrolled graduate-level course at northeastern private university United States. By analyzing transcripts, presences examined reveal influence...

In the 14th Five-Year Plan and outline of 2035 Vision, "giving priority to development agriculture rural areas comprehensively promoting revitalization" is an important part, it also a key topic concern from all sectors society. This means that focus our work related agriculture, farmers will fully shift revitalization. The challenge globalization under influence epidemic highlights revitalization response this profound change unseen in century. Therefore, both terms concept action, future...

The high-performance permanent magnet synchronous motor control system requires higher performance such as speed tracking ability and current response speed.To this end, paper proposes a predictive method for improving the robustness of motor.The outer loop adopts closed-loop rolling optimized rotational to improve capability.For irreversible delay one beat digital system, inner Newton interpolation compensation deadbeat enables have stronger dynamic capability.Then reduced-order load...