Gel Textural Characteristics of Hair Gel with Cocoa Shell Extract by Using Mixture D-optimal Method

This study was used a mixture design to optimize the spreadability and viscosity of topical hair gel incorporates cocoa shell extract. The factor of the hair gel ingredient was thickener (0.2 – 0.8%), styling polymer A (2-5%), styling polymer B (2-6%), and solvent (84.63-91.63%) were studied on two responses selected spreadability and viscosity. The data collected were fitted to the model with high coefficient determination (R2= 0.994 for the spreadability and 0.9937 for the viscosity). The model can be predicted by showing the good lack of fit test result not significant with the p-value bigger than 0.05. From the ramp function simulation, the optimized formulation was selected and established at thickener (0.55%), styling polymer A (3.61%), styling polymer B (3.72%), and solvent (88.55%) with the spreadability and viscosity at 353.77 g.s and 39.91 pa.s respectively. The benefit of using mixture design in this experiment, it can help a formulator to understand the complex interaction between factors and can easily modify the formulation through ramp function simulation to obtain the desired result. The predicted validation test shows that both values were comparable. Under this condition showed that the model development could be used to predict future observations within the design range thickener (0.2 – 0.8%), styling polymer A (2-5%), styling polymer B (2-6%), and solvent (84.63-91.63%).

Pengembangan Media Video Pembelajaran Tematik Kelas 3 MI Arriyadlah Pandean Paiton Probolinggo

Aim this development is to produce a instructional video thematic by mean of validation. This research was conducted in Class 3 MI Arriyadlah Pandean Paiton probolinggo. The resulting product is a instructional video thematic. Development method with Bord and Gall model. The results of this study showed that the validation test results of experts stated very valid with the average score of 92,5% for efectivity criteria. 90% for eficiency criteria and 86,6% for attractive criteria.

Application of Sentinel Images 2-A in Estimation of Potassium in Potatoes

Potato production in Indonesia decreased by 2.43% from 1,314,657 in 2019 and 1,282,768 tons in 2020. One of the causes of the decline in potato production is a lack of potassium. Potassium nutrient deficiency can be caused by fertilization that is not yet precise and is still done conventionally. The purpose of this study was to estimate the nutrient content of potassium using Sentinel 2-A. This study observed 50 points that were determined through the free grid method. Sentinel 2-A was transformed into GLI, GNDVI, NDVI which is the vegetation index and NDSI, and SAVI which is the soil index. The results showed that plant K correlated with GLI CS index (r = -0,46), NDVI CS (r = -0,48) and NDSI CS (r = -0,46). NDVI CS (R2 =2 3%) is the most accurate index in estimating the nutrient content of Potassium than GLI CS (R2 = 21%) and NDSI CS (R2 = 21%). Based on the results of the plant K regression test and NDVI CS, the regression equation y = 1,8003 + (-0,5716 NDVI CS) was obtained. The results of the validation test showed that the t table (-3.18) > t count (2.15) so that there is a significant difference in the estimation results of potassium with the results of potassium obtained in the field. Based on the results of the validation test which were significantly different, the productivity estimation model could not be used to estimate the potassium nutrient in potatoes.

Validitas Media Berbasis Android pada Materi Struktur dan Fungsi Asam Amino dan Protein

The COVID-19 pandemic has forced major changes in the world of education. The application of social distancing to learning from home makes educators must be more creative in learning. The use of appropriate media in learning is very important to overcome these problems. One of the media used is android-based learning media. This research is continuation research of android application design in the subject of structure and function of amino acids and proteins. This research is limited to media validation. The instrument validation test stated that the instrument was valid with rcount greater than rtable at the number of N = 34 and a significance value of 5%. The reliability test of the validation instrument shows the rcount value of 0.880 and is greater than rtable 0.339 at the number of N = 34 and a significance value of 5%. The score of the questionnaire instrument was 3,196 obtained by averaging the scores from each category. It is in the range of 2.9-3.4 with a high category so that it can be interpreted that the application can be used as a learning media of the structure and function of the molecule.

PENGEMBANGAN E-LKPD MATEMATIKA BERBASIS PROBLEM SOLVING POKOK BAHASAN POLA BILANGAN

The type of this research is Research and Development. The research purpose was to develop and determine the feasibility of e-LKPD mathematics based on Problem Solving number pattern material for class VIII Junior High School. The development model used in this research is ADDIE. The subject in this research is all student of class VIII B and VIII C SMP Muhammadiyah Piyungan. The data obtained were analyzed using descriptive qualitative analysis and descriptive quantitative analysis. The results showed that e-LKPD mathematics based on Problem Solving number pattern material was feasible to use after the validation test was carried out with the material expert giving a score of 115.5 and material expert giving a score of 85.5 in the very good category. In addition, the trial of product obtained a score of 82.15 with a good category. This shows that e-LKPD mathematics based on Problem Solving number pattern material is fesiable to use in the learning.

PENGEMBANGAN MEDIA PEMBELAJARAN MATH BINGO PADA MATA PELAJARAN MATEMATIKA MATERI PECAHAN KELAS IV SD

AbstrakPenelitian ini bertujuan mengetahui pengembangan media pembelajaran math bingo pada pembelajaran matematika materi pecahan yang memenuhi kriteria valid dan praktis. Media math bingo dikembangkan dengan memanfaatkan aplikasi powerpoint yang terdiri dari 4 papan permainan bingo. Metode yang digunakan adalah Research and Development (RnD) mengacu pada model pengembangan 4D. Pengumpulan data dilakukan melalui lembar validasi, lembar angket respon siswa, dan angket respon guru. Analisis data melalui empat tahapan, yaitu define, design, development, dan dessiminate. Berdasarkan hasil uji coba small group work yang dilakukan pada kelas IV SDN 48 Lubuklinggau, diperoleh bahwa, hasil kepraktisan media pembelajaran math bingo berada pada kriteria sangat praktis. Kemudian uji coba validasi yang dilakukan oleh 3 validator ahli media, bahasa, dan materi diperoleh hasil validasi media komik dengan kategori tinggi, sehingga disimpulkan bahwa dalam tahap uji coba small group work dan uji validasi memenuhi kriteria kevalidan dan kepraktisan. Media pembelajaran math bingo pada pembelajaran matematika materi pecahan kelas IV SD dapat digunakan dalam pembelajaran di sekolah dasar. AbstractThis study aims to determine the development of math bingo learning media in mathematics learning with fractions that meet valid and practical criteria. Math bingo media was developed by utilizing the powerpoint application, consisting of 4 bingo game boards. The method used was Research and Development (RnD), which referred to the 4D development model. Data was collected through validation sheets, student and teacher response questionnaires. Data analysis went through four stages: define, design, development, and disseminate. Based on the results of the small group work trial conducted in the fourth-grade students of SDN 48 Lubuklinggau, it was found that the practicality of the math bingo learning media was in very practical criteria. Then, the validation test carried out by three validators of media, language, and material experts indicated that the validation result of comic media was in the high category, it concluded that the criteria for validity and practicality were met in the small group work trial stage and the validation test. Learning media math bingo in mathematics learning fractions of grade IV elementary school can be used in the learning process in elementary schools.

Development and validation of chemistry learning videos as learning media in the era of the COVID-19 pandemic

Learning media, especially videos, are very effective in achieving learning objectives, especially during the COVID-19 pandemic. Therefore, this study aims to develop learning videos as learning media during the COVID-19 pandemic. The research was conducted using a development research approach from the Borg & Gall model. The developed product has good validity. Where the results of the content validation test by material experts show the CVR value in the range 0.75 – 0.95 (above the critical CVR value). The construct validity test results have a value in the range 0.75 – 0.95 so that it is included in the valid category. And lastly, the test results for student responses have percentage values in the range of 79% - 89% so that they are included in the interesting and very interesting category. Based on these results, the developed learning video can be used as a learning media solution during the COVID-19 pandemic.

Pengembangan Media Video Pembelajaran Tematik Kelas 3 MI Arriyadlah Pandean Paiton Probolinggo

Aim this development is to produce a instructional video thematic by mean of validation. This research was conducted in Class 3 MI Arriyadlah Pandean Paiton probolinggo. The resulting product is a instructional video thematic. Development method with Bord and Gall model. The results of this study showed that the validation test results of experts stated very valid with the average score of 92,5% for efectivity criteria. 90% for eficiency criteria and 86,6% for attractive criteria.

Texture Analysis of Fat-Suppressed T2-Weighted Magnetic Resonance Imaging and Use of Machine Learning to Discriminate Nasal and Paranasal Sinus Small Round Malignant Cell Tumors

ObjectiveWe used texture analysis and machine learning (ML) to classify small round cell malignant tumors (SRCMTs) and Non-SRCMTs of nasal and paranasal sinus on fat-suppressed T2 weighted imaging (Fs-T2WI).MaterialsPreoperative MRI scans of 164 patients from 1 January 2018 to 1 January 2021 diagnosed with SRCMTs and Non-SRCMTs were included in this study. A total of 271 features were extracted from each regions of interest. Datasets were randomly divided into two sets, including a training set (∼70%) and a test set (∼30%). The Pearson correlation coefficient (PCC) and principal component analysis (PCA) methods were performed to reduce dimensions, and the Analysis of Variance (ANOVA), Kruskal-Wallis (KW), and Recursive Feature Elimination (RFE) and Relief were performed for feature selections. Classifications were performed using 10 ML classifiers. Results were evaluated using a leave one out cross-validation analysis.ResultsWe compared the AUC of all pipelines on the validation dataset with FeAture Explorer (FAE) software. The pipeline using a PCC dimension reduction, relief feature selection, and gaussian process (GP) classifier yielded the highest area under the curve (AUC) using 15 features. When the “one-standard error” rule was used, FAE also produced a simpler model with 13 features, including S(5,-5)SumAverg, S(3,0)InvDfMom, Skewness, WavEnHL_s-3, Horzl_GlevNonU, Horzl_RLNonUni, 135dr_GlevNonU, WavEnLL_s-3, Teta4, Teta2, S(5,5)DifVarnc, Perc.01%, and WavEnLH_s-2. The AUCs of the training/validation/test datasets were 1.000/0.965/0.979, and the accuracies, sensitivities, and specificities were 0.890, 0.880, and 0.920, respectively. The best algorithm was GP whose AUCs of the training/validation/test datasets by the two-dimensional reduction methods and four feature selection methods were greater than approximately 0.800. Especially, the AUCs of different datasets were greater than approximately 0.900 using the PCC, RFE/Relief, and GP algorithms.ConclusionsWe demonstrated the feasibility of combining artificial intelligence and the radiomics from Fs-T2WI to differentially diagnose SRCMTs and Non-SRCMTs. This non-invasive approach could be very promising in clinical oncology.

High-Speed Wired Drill Pipe and its Corresponding Manufacture & Test Technology Research

High-speed wired drill pipe and its corresponding communication technology not only can achieve high-speed transmission rate and high-capacity, but also can realize real-time monitoring and dual-way communication in whole section, which can prevent downhole problems effectively. As a series system, the homogeneity and robustness of these wired drill pipes are crucial. This paper focuses on how to overcome the difficulty in manufacturing process of information drill pipe and complete the validation test. In order to guarantee the quality of information drill pipe and satisfy the technological requirements of mass production, we optimize the manufacturing process and put forward reasonable test techniques. The optimizations of manufacturing process include the analysis on constant tension of pressure pipe, quantitative cutting pipe and perforation in pipe nozzle. The testing techniques includes magnetic coupling coil impedance test, high pressure test, communication performance test of both single pipe and series system. The test result can be judged and evaluated by the attenuation value of the signal attenuation test and the signal reflection waveform as well as sealing reliability. With the help of the optimization of the manufacturing process and the application of new tooling, the quality and robustness of information drill pipe is improved obviously. Pass rate in primary assembly is increased from 70% to 92%. After the second assembly, pass rate can be increased to 99.5%. Besides, the work efficiency is greatly improved and the process requirements of mass production are satisfied. The validation test can screen out the drill pipe with poor quality and performance effectively thus to improve the reliability of the whole system. By means of the improvement of manufacturing and the validation test, the comprehensive pass rate of information drill pipes is increased from 84% to 95%. During three field tests in Jilin and Daqing Oilfield, the information drill pipes functioned well and accomplished all the test tasks successfully. High-speed wired drill pipe can improve the downhole data transmission on a large margin. The theorical transmission rate can be up to 100 kbps, 10,000 times as much as the traditional mud impulse telemetry. The manufacturing optimization and test technology can guarantee the performance and realize downhole data highway.