The development of technology and information is in line with the era of society 5.0 which occurs in various fields, especially in terms of infrastructure which of course will lead to high mobility. One of the negative impacts that arise is noise. For that we need a material that can be used as an acoustic material that functions to absorb sound. Coffee waste is one of the agricultural wastes that can be used as an acoustic material. The purpose of this study was to determine the effect of the sound damping coefficient on sound intensity and the mixture of filler and matrix mass fractions that can be used to muffle sound. The tube method with the Sound Level meter feature from Smartphone will be used to determine the value of the sound attenuation coefficient. In this study, the sound intensity used was 60-100 dB, with a mass ratio of filler and matrix used was 80%:20%, 70%:30%, 60%:40%, 50%:50% and the thickness used is 10mm. The results of the study show that an increase in intensity for each sample will show a decreasing coefficient for each sample. This is due to the higher the intensity of the sound, the higher the sound energy will also be greater so that it is more difficult for the sample to absorb
The purpose of this research is to find out how emotional intelligence, intellectual intelligence and spiritual intelligence affect students' ethical behavior during the learning process. This research uses a quantitative approach with descriptive methods. Quantitative can be interpreted as a research method based on the philosophy of positivism, used to examine certain populations or samples, collecting data using research instruments, analyzing data is quantitative / statistical, with the aim of testing established hypotheses. Descriptive method is research conducted to find out about the independent variable, either one or more variables, without making comparisons and connecting one to another. In this study the researchers aimed to obtain information about emotional intelligence, intellectual intelligence, and spiritual intelligence on students' ethical behavior. There is a positive influence of emotional intelligence on students' ethical behavior during the learning process. This is evidenced by the results of the T test on the variable emotional intelligence (X1) and it is found that t-count > t-table (3.423> 2.048) with a significance value <0.05 (0.002 <0.05). There is a positive influence of intellectual intelligence on students' ethical behavior during the learning process. This is evidenced by the results of the T-test on the intellectual intelligence variable (X2) obtained that tcount > t-table (3.023>2.048) with a significance value <0.05 (0.005<0.05). There is a negative influence of spiritual intelligence on students' ethical behavior during the learning process.
Sistem Persamaan Linier merupakan salah satu pokok materi pada mata kuliah Aljabar Linier. Untuk menyelesaikan sistem persamaan linier, diperlukan beberapa persamaan linier yang mengandung peubah-peubah yang akan dicari nilainya. Kesatuan persamaan tersebut dinamakan sistem persamaan linier. Penyelesaian sistem persamaan linier dapat dilakukan dengan metode grafik, metode eliminasi, metode subtitusi, atau gabungan antara metode eliminasi dengan metode subtitusi. Dari populasi sebanyak 238 orang mahasiswa yang terbagi dalam tujuh kelas, secara purposif dipilih 60 orang sebagai sampel yang terdiri atas dua kelas. Kedua kelas tersebut selanjutnya dipilih secara random untuk menjadi kelompok eksperimen dan kelompok kontrol. Pengumpulan data dilakukan dengan menggunakan instrumen penelitian berupa tes kemampuan dalam menyelesaikan soal-soal yang menyangkut sistem persamaan linier dengan dua peubah. Setelah data terkumpul selanjutnya dianalisis menggunakan teknik statistik deskriptif. Hasil penelitian yang diperoleh mahasiswa UKI Toraja dalam menyelesaikan soal-soal mengenai sistem persamaan linier, terdapat perbedaan antara kelompok eksperimen yang menggunakan peta konsep dengan kelompok kontrol yang tidak menggunakan peta konsep. Peningkatan hasil belajar pada kelompok eksperimen lebih tinggi dibandingkan dengan kelompok kontrol.
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