Penelitian ini bertujuan pada upaya untuk mengetahui kualitas butir soal matematika pada materi segitiga. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Pengumpulan data dilakukan dengan metode pengumpulan data lapangan . Pembuatan aplikasi berdasarkan analisis hasil dari metode statistik yaitu analisis respon butir.?é?á Hasil dari penelitian ini adalah informasi berupa validitas soal, reliabilitas soal, evaluasi daya pembeda, dan tingkat kesukaran soal. Hasil analisis menunjukkan bahwa kualitas butir soal dari tingkat validitas soal, yang valid sebesar 70% dan tidak valid sebesar 30%. Dari tingkat reliabilitas soal dengan taraf signifikansi 5% soal dinyatakan reliabel. Berdasarkan tingkat kesukaran soal?é?á 60% berada pada kategori mudah, 30% berada pada kategori sedang, dan 10% berada pada kategori sukar. Daya beda soal menunjukkan 50% soal dikategorikan baik dan50% dengan kategori cukup. Berdasarkan hasil analisis data, dapat disimpulkan?é?á bahwa kualitas soal memiliki validitas dan reliabilitas yang tinggi, sedangkan dari tingkat kesukaran tergolong mudah dan daya bedanya tergolong cukup.
This study is intended to find the quality of bottled drinking water (AMDK) and drinking water (AMIU) sold around University of Muhammadiyah Kudus, in terms of organoleptic and microbiological parameters in drinking water according to SNI 01-3554-2006 and PMK No. 492 of 2010. The test is carried out using 10 sample of drinking water. They are 7 sample of AMDK (Ades, Airmu, Aqua, Cleo, Crystalin, Le mineral and Vit) and 3 sample of AMIU (Pasuruhan, Prambatan and Purwosari depots). The research consists of chemical physics which includes testing of TDS, pH, and three heavy metal elements which includes testing for the content of the elements Fe, Mn and Cl2 (chlorine), organoleptic and mikrobiologis (TPC, presence of E. coli and total coliform).The results of research shows that of physical and chemical measurements, the total dissolved solid (TDS) results 0 for Airmu and Cleo (demineral) and below 500 ppm for 8 samples of mineral water, this is according with the TDS requirements of SNI, > 10 ppm for demineralized and > 500 ppm for mineral water. The results of the pH test or the degree of acidity are in normal pH, which are around 7 out of 9 samples and only one with an alkaline condition is 8.37, namely the sample from the Pasuruhan depot. The test for the presence of heavy metals, Fe, Mn, is in good condition, showing the number zero with the brand brand test kit. Whereas for testing the presence of chlorine content, the results were above the threshold, namely 0.05 ppm from the Pasuruhan depot water sample, 0.02 ppm from the Prambat depot and the Purwosari depot. This is not in accordance with SNI provisions for chlorine content of 0 ppm. The organoleptik of all samples is in normal condition. Whereas, microbiologically, the TPC results before dilution were only Cleo and Ades which were suitable for consumption because they were absent from bacterial contamination. While the TPC results after dilution, testing the difference between E. Coli and Total coliform resulted in 7 samples of bottled drinking water which were safe and feasible as drinking water according to SNI 01-3553-2006 and 3 samples AMIU does not fulfil PMK No. 492/2010, as drinking water requirements.Keywords: AMDK, AMIU, Organoleptic Quality, Microbiology
Background: Ginger (Zingiber officinale (L.) Rosc) has been used as spice for over 2000 years. Its roots and the obtained extracts contain polyphenol compounds (6-gingerol and its derivatives), which have a high antioxidant activity. Methods for the characterization of antioxidants are presented and illustrated by their application to commercial ginger preparations, since it has been widely speculated that ginger might be beneficial to human health because it exerts antioxidant activity. This study aimed to investigate antioxidant effect of in red ginger (zingiber officinale var. rubrum) extract during the COVID-19 pandemic. Subjects and Method:This was an experimental study. A sample of red ginger extract involved five drink instant products. These products were assessed to measure the antioxidant level. Antioxidant activity was examined by soaking in radical free of 1,1difenil-2-pikrilhidrazil using UV-Vis Spectrophotometry. Results:The study showed that instant ginger sample A was included in the category of moderate antioxidant activity, while the other four instant ginger samples B, C, D, and E were included in the category of weak antioxidant activity. Furthermore, for the positive control, vitamin C is included in the category of very strong antioxidant activity. Conclusion:The instant red ginger product from the research results showed that four of the five samples belonged to the category of weak antioxidant activity.
The coverage data of exclusive breastfeeding in the world was 39% and it was estimated to be 36% in poor and developing countries. Many women didn't give exclusive breastfeeding because of sore or blister on their nipples. The incidence of sore nipples was 11-96% of all breastfeeding mothers in the world. The aim of this study was to determine the effectiveness of olive oil to prevent the sore nipples on breastfeeding mother. This study used a quasi-experimental post-test only non-equivalent control group design to see the differences of the effectiveness of olive oil to prevent the sore nipples by smear on the intervention group nipple. The smear frequency was twice a day for 10 days. This study was conducted on June -September 2019 in Kudus. The population of this study was all breastfeeding mothers in Kudus. The intervention and control group consist of 15 respondent. The sampling technique use consecutive sampling. The data collection use observation sheets. The data analysis use the Mann Withney test. Result: 13.3% of 15 respondents on intervention group got sore nipple. On the control group, there were 53.3% of 15 respondents got sore nipple. The p value of Mann Whitney analysis result was 0.022. It is lower than alpha (0.05). It shows that the application of olive oil on the nipples of breastfeeding mothers was effective to prevent the sore nipple. Conclusion: olive oil can prevent the sore nipple on the breastfeeding mother.
Blended learning is a mixture of traditional education as well as an area of electronic education. Blended Learning is defined as Blended from the initial word "Blend" which is a blend or mixing, while learning comes from the word "learn" which means learning, studying, listening. From this explanation, the researcher appointed a research entitled Evaluation of the Application of Blended Learning in Arabic Learning at SMP Muhammadiyah 1 Sidoarjo. The study used qualitative methods with interviews conducted to determine the evaluation of the application of blended learning which was carried out face-to-face.
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