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This research aims to develop and produce interactive learning media based on android applications in English subjects. This type of research is research and development that refers to the 4D development model modified into 3D. The subjects of this research were first grade students of SMPN 3 Majene. The instruments used in this study were (1) media expert validation sheet to measure media feasibility, (2) product expert validation sheet to measure media feasibility, and (3) student response questionnaire to find out students' opinions on the attractiveness of the developed media. The results of the research are: (1) Development of interactive learning media based on android. (2) Learning media is declared feasible by media expert validators with a percentage of 92% in the very feasible category and experts with a percentage of 94% including the very feasible category. (3) The learning media is declared interesting based on the results of the analysis of student response questionnaires, which is 80%. At the end of this study, it can be inferred that Power Point-based Android English Learning Multimedia is feasible and ready to assist English teachers and students to gain better English learning. [ABSTRACT FROM AUTHOR]

Teaching aids like chalkboard and power point (PPT) have commonly been used in medical teaching. With an increasing number of medical seats and introduction of competency-based curriculum, PPT is being preferred. Chalk board talk lecture is the oldest and most commonly used teaching method. After introduction of digitalized teaching in medical colleges Power point presentation Lecture method is commonly used. This study was to evaluate the feedback from MBBS students regarding opinion and preferences of chalk board and PPT lecture delivery aids. The present study was well planned, prospective and cross-sectional questionnaire-based study conducted on MBBS UG medical students in India. 200 students were selected from all years of MBBS. Google form Questionnaire was used to know advantages and drawbacks of Chalk Board and PPT lecture teaching method. In present study 52 % students preffered PPT lecture teaching, 26 % students preffered chalk board lecture teaching. 22% students preffered both PPT and Chalk board teaching methods. The results of the present study suggest that both the tools of teaching (PowerPoint or chalkboard) have some strengths and limitations. Therefore, integrated (PowerPoint and chalkboard) method of teaching is more suitable tool of teaching and learning at undergraduate medical schools. [ABSTRACT FROM AUTHOR]

This research and development aimed to create a PowerPoint (PPT) prototype that incorporates video segments to prove targeted hypotheses. Development of the product followed a modified Luther's model with six stages: the concept of PPT actively engaging students through problem-based learning, designing student active learning via a worksheet-based PPT, especially with inductive reasoning, collecting materials, PPT assembly supported by hypothesis proving videos with about a five-minute duration, product testing, and the distributing product for online learning. This research and development successfully developed the desired PPT prototype (in the Indonesian language) with three PPT unit samples created on the topics of chemical learning of acid and base solutions. The PPT prototype followed the worksheet structure. It begins with listing background information, obtained from short introduction paragraphs, then questioning to arrive at the investigative questions, formulating hypotheses, designing proving hypotheses, collecting data, data analysis, and confirming the claimed hypothesis validity. The prototype had very good validity for most concerned learning aspects, according to content and media experts. It was also supported by appreciation from a chemistry teacher. Good product readability was implied from the completed worksheets done by secondary school student samples who had low, average, and good levels of prerequisite knowledge related to the scientific conceptions being taught. [ABSTRACT FROM AUTHOR]

Copyright of Jurnal Pendidikan Indonesia is the property of Publikasi Indonesia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This research aims to increase student creativity by using the interactive media Power Point-Ispring. Creativity is measured using indicators: 1) the ability to think fluently (fluency), 2) the ability to think flexibly (flexibility), 3) the ability to think originality (originality), and 4) the ability to think in detail (elaboration). This research is experimental research with a pre-experimental design, with a one group pre-test post-test design type. The research instrument uses observation sheets to assess products made by students, namely interactive learning media Power Point-Ispring on science study material in elementary school. The research objects were five people from the basic education master's study program who took a science concentration. Data analysis techniques used the non-parametric statistical test Wilcoxon sign rank test. Then, an N Gain test was carried out to find out whether there was an increase in student creativity after being given learning using the interactive media PowerPoint-iSpring. According to the study's findings, the average pretest score was 52.5, the post test results percentage was 93.3, and all of the creativity markers had high N-Gain scores. This demonstrates how using interactive learning resources like PowerPoint - iSpring can help students become more creative. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Social & Technology / Jurnal Sosial dan Teknologi (SOSTECH) is the property of Green Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Al-Adab / Al-ādāb is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Teaching and learning are active and continuous process 1. Use of teaching aids in medical education technology is swiftly changing from blackboard to virtual simulations and teaching methods range from lectures to integrated teaching. 2 The former encompasses blackboard and chalk with oral demonstrations and verbal dictations, while the latter consists of more modern teaching aids, like overhead projectors (OHPs), PowerPoint (PP) slides, Medical videos and animation clips. The current study was planned to fill the gap and to convey the opinion of students to their teachers. Method: The present study is a cross sectional study carried out by the Department of Community Medicine, from April 2016 to June 2016 comprising of all the undergraduate students. The study was done by using pre-tested and pre-designed semi structured questionnaire. It contained questions, pertaining to the comparison, benefits and drawbacks of blackboard, PowerPoint, overhead projectors and video animation. Results: There were 685 undergraduate students studying during the study period. 55 incomplete forms were rejected. Most of the students preferred a combination method over any single teaching aid. It was black board and powerpoint (57%) and black board and animation videos (43%). Surprisingly in our study the preference of blackboard over other methods was not significantly higher. (53% of the students preferred blackboard and 47% preferred powerpoint. Majority of students preferred bed-side teaching (71%) over video and animation lectures.(p<0.005). Conclusion: Due to the changes in the medical curriculum and advancement in technology and the new generation learners, students perception regarding teaching forms an essential part for the teachers to mould their teaching to suit the present. Ideally combination teaching aid will be the most satisfied teaching aid because the inherent deficiency of one aid will be compensated by the other. [ABSTRACT FROM AUTHOR]

The photogalvanic cell containing sodium Lauryl sulphate as micellar species, mannitol as an electron donor, and methylene blue as photo sensitizer has been used for solar energy conversion and storage. The electrical output of the cell was 999.0 mV, 85.0 A, and 849.15 W, respectively, as photopotential, photocurrent, and power at power point of the cell. The current voltage characteristics of the cell have been studied; observed conversion efficiency was 0.2664% and determine fill factor was 0.32. The performance of the cell in the dark was 45.0 min. [ABSTRACT FROM PUBLISHER]

Background and Objectives: Medical/dental colleges in Northern India cater to students with diverse backgrounds, mother tongues, levels of comprehending English, and intelligence levels. This study was conducted to identify lecture strategy and teaching aid best suited for North Indian dental and medical students. It was conducted in two parts - 1. Survey of teachers' and students' opinion to obtain their preferences in teaching-learning practices followed in a conventional lecture, and 2. Comparison of students' performances after a single trial lecture with different groups of students, using different teaching aids (TAs). Materials and Methods: Opinions of 33 faculty teaching first year dental/ medical students and 506 volunteer students (320 female) were compiled. Students were divided into four groups. A single trial lecture was held with each group (on the same topic, using identical lesson plan, by the same teacher) using a different teaching aid with each group. Lecture strategy was designed according to students' preferences (as obtained from opinion survey) regarding language of instruction and the number of mental breaks. TAs used with different groups were chalk and board (C&B), PowerPoint (PPT), overhead projector (OHP), and a combination of C&B and PPT. Pre- and posttests using multiple choice questions were conducted with each group. Results of post-test questionnaire and feedback from faculty attending the lecture were assessed for students' satisfaction and attentiveness in all four groups. Results: Survey results indicated that although 97.6% students believed they had good/fair proficiency in English, 83.6% preferred being taught in a combination of English and Hindi; 44.3% students preferred C&B, 40.1% preferred PPT and 15.6% preferred the use of OHP as TA. After conducting a trial lecture with different TAs with each group, more than 90% students expressed satisfaction with the TA used for that group. Significantly better performance was observed in the postlecture test when C&B was used. Conclusion: The needs of students in India are different from those of their Western counterparts, and should be considered during didactic lectures to improve the students' understanding. Post-test results were better when C&B was used, as more students were attentive and/or took notes. [ABSTRACT FROM AUTHOR]

An efficient photogalvanic cell containing oxalic acid as an electron donar, a dye bismark brown as a photosensitizer, and sodium lauryel sulphate as a surfactant has been investigated for solar energy and storage. The photopotential, photocurrent, and power generated by the photogalvanic cell were 675.0 mV, 130.0 μA, and 87.75 μW, respectively. The determined conversion efficiency of the cell was determined as 0.4704% and fill factor was 0.557. The current voltage characteristics of the cell have also been studied. The effect of diffusion parameters on the electrical output of the cell was investigated and a mechanism for the generation of photocurrent in this photogalvanic cell has also been proposed. [ABSTRACT FROM PUBLISHER]

Objective: With technological evolution, use of power point presentation has been increased tremendously for classroom teachings in medical education. There is dearth of information that whether this technology is really liked by the students in anatomy or not. Therefore present study was conducted to assess which methodology of teaching anatomy was preferred by students: traditional (chalk & black-board), computer assisted or both when combined. Methods: A questionnaire based study was conducted that involved 250 1st year MBBS students. Students were asked to fill semi structured questionnaire that contained closed and open ended questions regarding teaching methodology. Results & Conclusion: 70.37% students favored combination of power point presentations along with traditional method, 25.93% preferred chalk and blackboard method and only 3.7% students opined that power point presentations should be the sole method of teaching. Therefore the study concludes that traditional method of lecture delivery in anatomy should be carefully amalgamated with power point presentations to meet the aspirations of students and to combat the limitations of chalk and board method. [ABSTRACT FROM AUTHOR]

This paper investigates the nature of the power point in tennis. A series of static racket impacts and a polynomial fit were used to simulate four different racket shots with increasing amounts of angular velocity-identifying the true 'power point' for each shot. A rigid body model was used to define the 'ideal point' for each shot-the impact point which theoretically yields maximum outbound ball velocity. Comparing theory with experiment revealed that the 'ideal point' is most accurate for impacts around the racket's node point (the rigid body model does not account for frame vibration). Previous research has shown that tennis players aim to strike the node point of the racket. The concept of the ideal point has potential in tuning the weight distribution of a racket to a player's shot type. If the 'ideal point' exists at the racket node point for a player's typical forehand shot, then outbound ball velocities can be maximised. [ABSTRACT FROM AUTHOR]

The performance of dye-sensitized photogalvanic cells for the direct conversion of solar energy to electrical energy was studied with use of a new dye methyl green. The photogalvanic effect has been studied in a system containing methyl green as the photosensitizer (dye) and DTPA as the reducing agent in the presence of sodium lauryl sulphate. The effect of various parameters on electrical output of the cell, such as effect of the dye, reductant and surfactant concentration, light intensity, temperature, diffusion length, and electrode area, were observed. The photogalvanic performances (experimental conversion efficiency, fill factor, storage capacity) of this cell have also been determined. The photopotential and photocurrent generated by this system were 815 mV and 310 μA, respectively. This photogalvanic cell can be used for 55 min in the dark. A mechanism of the photocurrent generation is discussed and the role of electro active species are also discussed. [ABSTRACT FROM PUBLISHER]

Copyright of Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A photosensitizer-Eosin and a reductant-D-Xylose were used in the photogalvanic cell for photochemical conversion of solar energy into electrical energy. The generated photopotential and photocurrent were 825.0 mV and 250.0 μA, respectively, whereas maximum power of the cell was 206.25 μW. The observed power at the power point was 70.85 μW and conversion efficiency was 0.6812%. The experimentally determined fill factor at the power point of the photogalvanic cell was 0.2778. The photogalvanic cell so developed can work for 90.0 min in the dark if it is irradiated for 195.0 min only. The effects of different parameters on the electrical output of the photogalvanic cell were observed. A mechanism has also been proposed for the photogeneration of electrical energy. [ABSTRACT FROM AUTHOR]

A mixed dyes system containing new methylene blue and fast green as a photosensitizer in photogalvanic cell has been studied for improved solar energy conversion and storage in the present work. Ethylenediaminetetraacetic acid has been used as an electron donor. The photopotential and photocurrent generated by the cell were measured to be 738.0 mV and 120.0 μA, respectively. The effect of various parameters such as pH, reductant concentration, dye concentration, diffusion length, and electrode area on the electrical output of the cell has been studied. The observed conversion efficiency was 0.564 per cent and the maximum output (power) of cell was 88.5 μW. The photogalvanic cell can be used in the dark at its power point for 90.0 min. The current-voltage (i-V) characteristics of the cell have been studied, and a mechanism for the generation of photocurrent has also been proposed. [ABSTRACT FROM AUTHOR]

Photogalvanic effect was studied in photogalvanic cells containing EDTA as reductant, new methylene blue, and safranine O as photosensitizer. The photopotential and photocurrent generated were 740 mV and 110 μA, respectively. The observed conversion efficiency was 0.4442% and the maximum output (power) of cell was 81.4 μW. The photogalvanic cell can be used for 95 min in the dark due to the storage capacity of the cell. The effects of various parameters on the electrical output of the cell were observed. The mechanism of generation of the photocurrent in these photogalvanic cells has also been proposed. [ABSTRACT FROM AUTHOR]

The article presents a study on the efficiency of YourTeamIsIn as collaborative learning and assessment tool for diverse educational disciplines in the U.S. The assessment tool is an online tool that provides multiple choice questions. The presence of the PowerPoint template allows the user to create a quiz with just few clicks.

Photogalvanic effect was studied in photogalvanic cells containing toluidine blue as photosensitizer, ethylenediamine tetra acitic acid as reductant and sodium lauryl sulphate, cetyl pyridinium chloride, Tween-80 as surfactants in different systems. The photopotential and photocurrent generated were 743.0 mV and 70.0 µA in EDTA-TB-NaLS system, 762.0 mV and 35.0 µA in EDTA-TB-CPC system, and 430.0 mV and 50.0 µA in EDTA-TB-Tween-80 system, respectively. The effects of different parameters on electrical output of the cell were observed, and a mechanism has been proposed for the generation of photocurrent in photogalvanic cell. [ABSTRACT FROM AUTHOR]

This article presents principles of the photogalvanic effect in which compounds are broken up by sunlight into fragments that are electrochemically charged. These fragments usually recombine instantaneously if they are relieved of their electrical charges. Photogalvanic cells containing sodium lauryl sulphate as micellar species, mannitol as reductant, and safranine as photosensitizer were used to study the photogalvanic effect. The photopotential and photocurrent generated were 844.0 mV and 75.0 μA, respectively. The observed conversion efficiency was 0.2228% and the maximum power of the cell was 63.30 μW. The storage capacity of the photogalvanic cell was 102.0 minutes in darkness and the fill factor 0.31 also was determined. The effect of variation of different parameters on electrical output along with i-v cell characteristics were observed and a mechanism also has been proposed for the generation of photocurrent in these photogalvanic cells. [ABSTRACT FROM AUTHOR]

The photogalvanic effect was studied in a photogalvanic cell containing Ethylenediaminetetra-acetic acid as reductant and methylene blue and thionine as photosensitizers. The photopotential and photocurrent generated were 752.0 mV and 90.0 μA, respectively. The observed conversion efficiency was 0.43 per cent and the maximum output of cell was 67.68 μW. The photogalvanic cell can be used for 30 min in the dark. The effects of different parameters on electrical output of the cell were observed, and a mechanism for the generation of photocurrent in photogalvanic cells has also been proposed. [ABSTRACT FROM AUTHOR]

This paper discusses the benefits of using Web-based worksheets for library instruction in a variety of library settings, including classroom presentations, hands-on labs, and at a distance. Web-based worksheets have been used successfully in the Haskayne School of Business MBA program and the Department of Biological Sciences at the University of Calgary. Benefits include greater flexibility and interactivity, student focus, potential for follow-up, cost-effectiveness, and staff training. The article also includes some basic tips for designing and developing effective Web resources. [ABSTRACT FROM PUBLISHER]

Photogalvanic effects were studied in photogalvanic cells containing sodium lauryl sulphate as surfactant, EDTA as reductant and azur-B as photosensitizer. The photopotential and photocurrent generated were 814#x00B7;0 mV and 255·0 μA respectively. The observed conversion efficiency was 1·2% and the maximum power of cell was 207·57 μW. The storage capacity of the cell was 26#x00B7;0 min in dark. The effect of different parameters on electrical output of the cell was observed. A mechanism has been proposed here for the generation of photocurrent in photogalvanic cells [ABSTRACT FROM AUTHOR]

Photogalvanic effect was studied in photogalvanic cells containing EDTA as reductant and Methylene blue and Azur-B as photosensitizers. The photopotential and photocurrent generated were 732.0 mV and 70.0 μA, respectively. The observed conversion efficiency was 0.1165% and the maximum output of the cell was 51.24 μW.The photogalvanic cell can be used for 46.0 min in the dark. The effects of different parameters on electrical output of the cell were observed and a mechanism has also been proposed for the generation of photocurrent in photogalvanic cells. [ABSTRACT FROM AUTHOR]