scholarly journals The Effectiveness of Web-Based Recitation Program on Improving Students’ Conceptual Understanding in Fluid Mechanics

2020 ◽  
Vol 9 (2) ◽  
pp. 219-230
Author(s):  
T. N. Diyana ◽  
S. Sutopo ◽  
S. Sunaryono
Keyword(s):  
Fluid Mechanics ◽  
Conceptual Understanding ◽  
Physics Education ◽  
Teaching Assistant ◽  
Control Group ◽  
State University ◽  
Immediate Feedback ◽  
Web Based ◽  
Physics Course ◽  
Post Hoc

A web-based recitation program has been developed to improve students’ conceptual understanding of some fundamental concepts of fluid mechanics. The program consists of multiple-choices conceptual questions followed by immediate feedback for each option. This study aimed to examine the effectiveness of the program and whether the program can be used by students without any assistance of instructor. If it is the case, the program could be used by instructor to serve recitation program outside the classroom. To address the objectives, this study employed a non-randomized control group pretest-posttest design involving three groups of students. The first group (E-1) used the program accompanied by teaching assistant, the second group (E-2) used the program by his/herself without assistance, and the third group (C) learned by his/herself without the program. The study involved 73 students enrolling the introductory physics course in physics education department, State University of Malang, as the subject. The effectiveness of the program was analyzed by comparing N-gain scores of the three groups and the responses of the E-1 and E-2 students to the program. Pretest was administered after the three groups of students have learned fluid mechanics through regular lecture sessions, and the posttest was administered after the E-1 and E-2 groups have finished learning with the help of the program. The results showed that the N-gain of group E-1, E-2, and C was 0.51 (upper medium), 0.58 (upper medium), and 0.12 (low), respectively. The ANOVA test showed that the three N-gain values were statistically different (p = 0,000). The LSD post hoc test showed that the N-gain of group C was significantly different from that of group E-1 and E-2 (p=0.000), whereas the N-gain between group E-1 and E-2 was not significantly different (p=0.244). It can be concluded that the web-based recitation program was effective to improve the students’ conceptual understanding of fluid mechanics and can be used equally well with or without direct assistance from instructor or teaching assistant. The students that used the program also gave quite positive responses to the program, that the program could help them to reflect on the appropriateness of their understanding, was easy to use, and had attractive features.

scholarly journals THE EFFECTS OF A WEB-BASED COMPUTER SIMULATION ON STUDENTS’ CONCEPTUAL UNDERSTANDING OF RATE OF REACTION AND ATTITUDE TOWARDS CHEMISTRY

2015 ◽  
Vol 14 (5) ◽  
pp. 627-640
Author(s):  
Eunice Eyitayo Olakanmi
Keyword(s):  
Computer Simulation ◽  
Conceptual Understanding ◽  
Attitude Scale ◽  
Control Group ◽  
Learning Tools ◽  
Structured Interviews ◽  
Teaching Chemistry ◽  
Web Based ◽  
Significant Difference ◽  
Rate Of Reaction

This study established the effects of a web-based computer simulation on the conceptual understanding of the rate of chemical reaction and attitude of 66 first year secondary school (SS1) students in Niger state, Nigeria towards chemistry. A pre-test and post-test experimental design was used during which students were randomly assigned into either the experimental or the control group. The ‘Rate of Reaction Knowledge Test’ (RRKT) and the ‘Chemistry Attitude Scale’ (CAS) was administered. Classroom observations and structured interviews with the students yielded additional qualitative data. The results showed that a statistically significant difference was found between the groups and that the web-based computer simulation improved students’ development of mental models on rate of reaction in comparison to the students in the experimental group. The students in the experimental groups also indicated that they liked using the software learning tools. The findings support the notion that chemistry teachers should be trained or re-trained in the use of web-based computer simulations for teaching chemistry. It places an onus on educational authorities to procure web-based simulations for use in teaching chemistry and other science subjects in secondary schools. Key words: attitude to chemistry, conceptual understanding, rate of reaction, web-based computer simulation.

scholarly journals The Reconstruction Model of Science Learning based PhET-Problem Solving

2020 ◽  
Vol 3 (1) ◽  
pp. 37-47
Author(s):  
Florida Emmy Doloksaribu ◽  
Triwiyono Triwiyono
Keyword(s):  
High School ◽  
High School Students ◽  
Problem Solving ◽  
Conceptual Understanding ◽  
Junior High School ◽  
Physics Education ◽  
Science Learning ◽  
Junior High ◽  
Learning Model ◽  
Control Group

This study investigates the effects of science learning model reconstruction based on student needs, in order to generate more operational standards and teaching materials. The conceptual understanding through virtual laboratory appears minimal, based on the analysis addressing the demands of junior high school students in several locations in Papua. Hence, there is a necessity to reform the learning structure through the utilization of physics education technology (PhET). Furthermore, the model was reconstructed by the Model Education of Reconstruction with fundamental principles, including an analysis of the education needs based on PhET-Problem solving, to compose context describing energy materials and its changes. Expert validation on the accuracy of illustrations, drawings, tasks, exercises, and questions, indicates the model is eligible. The participants are 60 students control and experiment group for junior high school public 11 Jayapura. The results showed the science learning model has demonstrated increased virtual experiment abilities and conceptual understanding trought pretest and postest based N-Gain. Analysis of data based normality test and independent test (T-test), meanwhile, there is a significant differences between experimental and control group. Outcome of students' responses for a separate learning model reflected positive.

scholarly journals Topical 1% Nalbuphine on corneal sensivity and epitheilization after experimental lamellar keratectomy in rabbits

2012 ◽  
Vol 42 (4) ◽  
pp. 679-684 ◽  
Author(s):  
Miguel Ladino Silva ◽  
Dunia Yisela Trujillo Piso ◽  
Alexandre Pinto Ribeiro ◽  
Jose Luiz Laus
Keyword(s):  
Repeated Measures ◽  
Area Under The Curve ◽  
Control Group ◽  
State University ◽  
Corneal Sensitivity ◽  
Repeated Measures Anova ◽  
Paulo State ◽  
The Right ◽  
Post Hoc ◽  
Animal Care

The present study was aimed to evaluate the effects of topical 1% nalbuphine on corneal sensitivity and re-epithelialization, after lamellar keratectomy in rabbits. All protocols were approved by the Animal Care Comission of São Paulo State University (Protocol 028793-08) and were conducted in accordance with the Institutional Animal Committee and the Association for Research in Vision and Ophthalmology (ARVO) statement for the use of animals in research. Surgeries were performed on the left eye (Nalbuphine Group) and on the right eye (Control Group). Two groups were formed (n=10) and corneas received either 30µl of 1% nalbuphine (NG) or 30µl of 0,9% saline (CG). Treatments occurred at 7, 11, 15 and 19 hours. After the surgery, the corneas were stained with fluorescein and photographed daily; corneal touch threshold (CTT) was assessed with Cochet-Bonnet aesthesiometer, at 7 and 19 hours, 20 minutes after treatments. Data were statistically compared with repeated measures ANOVA and Bonferroni post-hoc test, and T test (P<0.05). Average ±SD time for corneal re-epithelialization was 7.40±0.47 days (NG) and 8.90±0.31 days (CG) (P=0.11). The results showed that the diameter of the keratectomized area and CTT did not change significantly between both groups (P>0.05); however, a higher area under the curve for both parameters was observed in the NG (2771), in comparison to CG (2164). Topical 1% nalbuphine did not change significantly corneal sensitivity and re-epithelialization, after experimental lamellar keratectomy in rabbits.

scholarly journals Interdisciplinary Approach-Based Energy Education

2019 ◽  
Vol 9 (1) ◽  
pp. 57
Author(s):  
Gokhan Guven ◽  
Yusuf Sulun
Keyword(s):  
Academic Achievement ◽  
Science Teachers ◽  
Conceptual Understanding ◽  
Interdisciplinary Approach ◽  
Service Science ◽  
Control Group ◽  
Control Group Design ◽  
Energy Education ◽  
Quasi Experimental ◽  
Post Hoc

The purpose of the current study is to investigate the effect of interdisciplinary approach-based energy instruction on pre-service science teachers’ academic achievement and conceptual understanding regarding the concept of energy. To this end, the current study was designed as a quasi-experimental study in line with the pretest-posttest control group design. The activities related to the concept of energy were conducted by using the interdisciplinary approach and the same activities were conducted by using the methods and techniques based on the existing approaches. A total of 66 pre-service science teachers participated in the study lasting for 10 weeks. In the analysis of the data, ANOVA/Post Hoc Test was used. As a result of the study, it was found that the use of the interdisciplinary instructional approach in teaching the concept of energy increased the pre-service teachers’ academic achievement and conceptual understanding more than the traditional approaches. Thus, it can be suggested that during the instruction of the energy concept, the features of this concept should be taught in a certain developmental order and the interdisciplinary approach should be used in the activities conducted to teach this concept.

scholarly journals PEMBELAJARAN BERBASIS MULTIMEDIA INTERAKTIF UNTUK MENINGKATKAN KETERAMPILAN GENERIK SAINS CALON GURU FISIKA

2009 ◽  
Vol 4 (2) ◽  
Author(s):  
Gunawan Gunawan
Keyword(s):  
Physics Education ◽  
Interactive Multimedia ◽  
Control Group ◽  
Education Department ◽  
Generic Skills ◽  
Physics Instruction ◽  
Research Findings ◽  
Physics Course ◽  
Normalized Gain ◽  
Logic Inference

Abstrak. Tujuan penelitian ini adalah menguji pengaruh penerapan model pembelajaran fisika berbasis multimedia interaktif terhadap keterampilan generik sains mahasiswa pada konsep elastisitas. Penelitian ini merupakan penelitian eksperimen dengan subjek mahasiswa jurusan pendidikan fisika yang sedang mengikuti perkuliahan fisika dasar. Data dikumpulkan melalui tes keterampilan generik sains. Analisis data menggunakan uji beda rata-rata dan skor gain yang dinormalisasi. Penelitian ini menunjukkan bahwa keterampilan generik sains mahasiswa kelompok eksperimen lebih baik dibandingkan kelompok kontrol. Model pembelajaran fisika berbasis multimedia interaktif dapat meningkatkan kemampuan mahasiswa dalam inferensi logika dan membangun konsep.Keywords: Multimedia Interaktif, Keterampilan Generik Sains, Konsep Elastisitas. Abstract. The aim of this study is examines the effects of applying an interactive multimedia based physics instruction on students’ science generic skills in elasticity concepts. This is an experimental research with research subject was students at physics education department that following introductory of physics course. Research data were collected by using generic skills achievement test. Data were analyzed by using mean-difference test and normalized gain scores. Research findings showed that the students’ generic skills in introductory physics course for experimental group better than control group. Interactive multimedia based physics instruction can be increases the students’ logic inference skills and built concepts skills.Keywords: Interactive Multimedia, Science Generic Skills, Elasticity Concepts.

scholarly journals A LEARNING PROCESS BASED ON CONCEPTUAL CHANGE APPROACH TO FOSTER CONCEPTUAL CHANGE IN NEWTONIAN MECHANICS

2017 ◽  
Vol 16 (2) ◽  
pp. 228-240
Author(s):  
Syuhendri Syuhendri
Keyword(s):  
Conceptual Change ◽  
Conceptual Understanding ◽  
Physics Education ◽  
Traditional Approach ◽  
Control Group ◽  
Newtonian Mechanics ◽  
Change Model ◽  
Conceptual Change Texts ◽  
Conceptual Change Model ◽  
Conceptual Change Approach

The purpose of this research was to investigate the effectiveness of conceptual change learning approach based on conceptual change model over traditional instruction on the improvement of physics education undergraduate students’ conceptual understanding in Newtonian mechanics. A quasi experimental research method with pre-test and post-test control group design was employed. The sample chosen based on purposive technique sampling comprising of 73 students was in two groups selected randomly each as experimental and control group. Predict-Observe-Explain-Apply (POEA) and using Conceptual Change Texts (CCT) strategies were implemented in the experimental group. The Force Concept Inventory (FCI) in Indonesian was used to collect data before and after treatments. The results show that the conceptual understandings of students who were taught using strategies under conceptual change approach was significantly better than those of the traditional approach. The research confirmed that only learning based on conceptual change model could improve learners’ Newtonian mechanics conceptual understanding. Key words: conceptual change approach, conceptual change texts, predict-observe-explain-apply, Newtonian mechanics.

Clinical Impact of Co-medication of Levetiracetam and Clobazam with Proton Pump Inhibitors: A Drug Interaction Study

2020 ◽  
Vol 21 (2) ◽  
pp. 126-131
Author(s):  
Bhuvanachandra Pasupuleti ◽  
Vamshikrishna Gone ◽  
Ravali Baddam ◽  
Raj Kumar Venisetty ◽  
Om Prakash Prasad
Keyword(s):  
Plasma Concentration ◽  
Proton Pump Inhibitors ◽  
Proton Pump ◽  
Plasma Concentrations ◽  
Control Group ◽  
Drug Concentrations ◽  
Significant Difference ◽  
Post Hoc ◽  
Hydrolysis Of ◽  
Cytochrome P 450

Background: Clobazam (CLBZ) metabolized primarily by Cytochrome P-450 isoenzyme CYP3A4 than with CYP2C19, Whereas Levetiracetam (LEV) is metabolized by hydrolysis of the acetamide group. Few CYP enzymes are inhibited by Proton Pump Inhibitors (PPIs) Pantoprazole, Esomeprazole, and Rabeprazole in different extents that could affect drug concentrations in blood. The aim of the present study was to evaluate the effect of these PPIs on the plasma concentrations of LEV and CLBZ. Methods: Blood samples from 542 patients were included out of which 343 were male and 199 were female patients and were categorized as control and test. Plasma samples analyzed using an HPLC-UV method. Plasma concentrations were measured and compared to those treated and those not treated with PPIs. One way ANOVA and games Howell post hoc test used by SPSS 20 software. Results: CLBZ concentrations were significantly 10 folds higher in patients treated with Pantoprazole (P=0.000) and 07 folds higher in patients treated with Esmoprazole and Rabeprazole (P=0.00). Whereas plasma concentration of LEV control group has no statistical and significant difference when compared to pantoprazole (P=0.546) and with rabeprazole and esomeprazole was P=0.999. Conclusion: The effect of comedication with PPIs on the plasma concentration of clobazam is more pronounced for pantoprazole to a greater extent when compared to esomeprazole and rabeprazole. When pantoprazole is used in combination with clobazam, dose reduction of clobazam should be considered, or significance of PPIs is seen to avoid adverse effects.

EFFECT OF WEB BASED INSTRUCTIONS ON ACHIEVEMENT IN SOCIAL STUDIES

2017 ◽  
Vol 4 (24) ◽  
Author(s):  
Rajwinder Kaur
Keyword(s):  
Social Studies ◽  
Conventional Method ◽  
Traditional Method ◽  
Statistical Techniques ◽  
Control Group ◽  
Web Based ◽  
Significant Difference ◽  
Post Test ◽  
Based Instruction ◽  
Experimental Group

The purpose of the study was to study the Effect of Web based instructions on achievement in Social Studies. The sample consisted of 100 students from Grade 8th of schools affiliated to C.B.S.E of Ferozepur and were randomly split into two groups-control (taught by traditional method) and experimental (taught by Web based instruction) groups. Firstly pre-test was administered on both the groups; then the students in the control group were taught by conventional method while experimental group was taught by Web based instructions. Then post-test was administrated on both the groups. The Statistical techniques were then employed to data collected and analysis and interpretation of the data was done. The result of the study implied that there exists significant difference in achievement in Social Studies based on Web based instructions and conventional method. The study also revealed that there exist significant gender differences in achievement in Social Studies with Web based instructions.

Post creation strategies in a smoking cessation intervention based on motivational interviewing using Facebook: a mixed-methods content analysis (Preprint)

2019 ◽  
Author(s):  
David Pócs ◽  
Tímea Óvári ◽  
Csaba Hamvai ◽  
Oguz Kelemen
Keyword(s):  
Smoking Cessation ◽  
Motivational Interviewing ◽  
Tobacco Use ◽  
Negative Feedback ◽  
Smoking Cessation Intervention ◽  
Control Group ◽  
Tobacco Use Cessation ◽  
Web Based ◽  
Cessation Intervention ◽  
Significant Difference

BACKGROUND Smoking cessation support on Facebook (FB) is a cost-effective and extensible way to reduce tobacco use among young people. Motivational interviewing (MI) is a practical counselling style in face-to-face smoking cessation support and can be useful in web-based interventions as well. OBJECTIVE This study aimed at identifying which post creation strategies based on MI could achieve positive changes in FB post characteristics and FB users’ comments. METHODS We included MI-adherent posts (N=701) which were not boosted and were targeted at tobacco users. These FB posts have been categorized into five different groups according to specific MI strategies. The control group comprised entertaining and informative posts. Primary outcomes seem to highlight how the content has stimulated interactions (engagement rate), inhibited interactions (negative feedback) or appealed to the audience of the FB page (fan-total reach ratio). The first comments received on the FB posts were evaluated and used as secondary outcomes. We applied the classification of MI approach: change talk (CT), sustain talk (ST), desire, ability, reason, need (DARN), and commitment, activation, taking steps (CAT). RESULTS FB posts which used MI strategies were associated with significantly higher engagement rate (p=.010), higher fan-total reach ratio (p<.001), and more CT (p<.001), DARN (p=.005), or CAT comments (p=.003) compared to the control group. ‘Elaborating CT’ strategies elicited considerably more CT (p<.001) and DARN comments (p=.020). ‘Affirming CT’ strategies obtained higher fan-total reach ratio (p=.011) and generated significantly more CT (p=.006) and CAT comments (p<.001). ‘Reflecting CT’ strategies received significantly higher fan-total reach ratio (p<.001). Finally, ‘relational MI’ strategies achieved significantly higher engagement rate (p<.001) compared to the control group. It should be noted that we did not find significant difference in negative feedback and the number of ST comments. CONCLUSIONS Post creation strategies based on MI stimulated interactions with FB users and generated conversation about tobacco use cessation without relevant negative feedback. Our findings suggest that MI strategies may play a remarkable role in post creation within a web-based smoking cessation intervention. In the future, these strategies could be applicable to other online platforms, such as public health websites, health blogs, mobile applications or social networking groups.

Effectiveness of a web-based medication adherence tool with patient centered communication: Results of a clustered randomized controlled trial (Preprint)

2019 ◽  
Author(s):  
Jan van Lieshout ◽  
Joyca Lacroix ◽  
Aart van Halteren ◽  
Martina Teichert
Keyword(s):  
Randomized Controlled Trial ◽  
Medication Adherence ◽  
Controlled Trial ◽  
Intervention Group ◽  
Control Group ◽  
Community Pharmacies ◽  
Web Based ◽  
Randomized Controlled ◽  
Tailored Interventions ◽  
Increased Risk

BACKGROUND Growing numbers of people use medication for chronic conditions; non-adherence is common, leading to poor disease control. A newly developed web-based tool to identify an increased risk for non-adherence with related potential individual barriers might facilitate tailored interventions and improve adherence. OBJECTIVE To assess the effectiveness of the newly developed tool to improve medication adherence. METHODS A cluster randomized controlled trial assessed the effectiveness of this adherence tool in patients initiating cardiovascular or oral blood glucose lowering medication. Participants were included in community pharmacies. They completed an online questionnaire comprising an assessments of their risk for medication non-adherence and subsequently of barriers to adherence. In pharmacies belonging to the intervention group, individual barriers displayed in a graphical profile on a tablet were discussed by pharmacists and patients at high non-adherence risk in face to face meetings and shared with their general practitioners and practice nurses. Tailored interventions were initiated by the healthcare providers. Barriers of control patients were not presented or discussed and these patients received usual care. The primary outcome was the difference in medication adherence at 8 months follow-up between patients with an increased non-adherence risk from intervention and control group, calculated from dispensing data. RESULTS Data from 492 participants in 15 community pharmacies were available for analyses (intervention 253, 7 pharmacies; control 239, 8 pharmacies). The intervention had no effect on medication adherence (-0.01; 95%CI -0.59 – 0.57; P= .96), neither in the post hoc per protocol analysis (0.19; 95%CI -0.50 – 0.89; P=.58). CONCLUSIONS This study showed no effectiveness of a risk stratification and tailored intervention addressing personal barriers for medication adherence. Various potential explanations for lack of effect were identified. These explanations relate for instance to high medication adherence in the control group, study power and fidelity. Process evaluation should elicit possible improvements and inform the redesign of intervention and implementation. CLINICALTRIAL The Netherlands National Trial Register: NTR5186. Date: May 18, 2015 (http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=5186)

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