Penelitian ini dilakukan oleh rendahnya kemampuan siswa di SMA yang dapat disebabkan oleh faktor eksternal dan faktor internal. Faktor eksternal, seperti metode dan strategi pembelajaran. Faktor internal, seperti emosi siswa atau kecemasan terhadap matematika. Penelitian ini hendak mengetahui bagaimana pengaruh kecemasan matematika terhadap keterampilan pemecahan masalah. Penelitian ini dilakukan di SMAN 2 Kota Serang. Metode penelitian ini adalah deskriptif kuantitatif dengan mengambil 3 kelas sebagai sampel. Data dikumpulkan menggunakan kuesioner dan tes. Hasil penelitian ini menunjukkan bahwa 1) rata-rata keterampilan pemecahan masalah matematika siswa adalah siswa yang memiliki kecemasan rendah memiliki skor yang sama dengan siswa yang memiliki kecemasan sedang, dan siswa yang memiliki kecemasan sedang lebih baik daripada siswa yang memiliki kecemasan tinggi, dan siswa yang memiliki kecemasan rendah memiliki skor lebih baik daripada siswa yang memiliki kecemasan tinggi 2) ada hubungan negatif antara kecemasan dan keterampilan pemecahan masalah 3) semakin tinggi tingkat kecemasan, semakin rendah keterampilan pemecahan masalah. Dari hasil tersebut, dapat disimpulkan bahwa ada perbedaan keterampilan pemecahan masalah matematika berdasarkan tingkat kecemasan, ada hubungan antara kecemasan matematika dan keterampilan pemecahan masalah matematika dan ada pengaruh antara kecemasan matematika dan keterampilan pemecahan masalah.

Tomatoes are a popular vegetable in Indonesia, where production increases every year according to market demand. The large production requires proper post-harvest handling both in quality and time. It has been well-known that sorting and grading are the first and foremost processes in the post-harvest process of tomatoes. Sorting tomatoes can be conducted by color and adjusted to the target market. The automation process in the post-sorting and grading process can save time and resources. This research proposes a sorting system that sorts tomatoes based on color, size, and weight. Tomatoes are sorted by red, yellow, and green colors. The detection of color and size was carried out by image processing with the OpenCV library. The color detection was carried out by HSV's red, yellow, and green values. In comparison, the dimensional measurement was carried out by determining the outermost point of the detected object both vertically and horizontally. At the same time, tomatoes' weight was measured by a weight sensor. This system was implemented into a prototype sorting system with a webcam, Arduino, a conveyor, and motors. The final part was a storage box used to accommodate tomatoes based on grading. The implementation has the maximum results for detecting color with 100% accuracy and measuring weight with 95% accuracy. However, it still needs development for dimensional measurements. In this research, it has only 5% accuracy. This proposed system can be used both in software and hardware design as an inline tomato sorting tool.

Abstrak. Pengeringan hybrid merupakan pengeringan yang menggunakan dua atau lebih sumber energi untuk proses penguapan air. Teknologi ini merupakan alternatif teknologi untuk pengeringan produk pertanian. Pengeringan mekanis sistem hybrid pada prinsipnya sama seperti pengeringan mekanis pada umumnya. Prosedur penelitian pengeringan ikan keumamah dilakukan dengan menyiapkan peralatan pengujian dengan memasang komponen yang diperlukan.Pengujian ditempatkan di tempat yang terbuka.Sebelum penelitian, alat ukur yang digunakan harus dikalibrasi temperatur terlebih dahulu.Pengujian pada alat pengering dengan tanpa bahan sebelum digunakan. Menyiapkan sampel, kemudian dibersihkan serta dimasukkan kedalam rak pengering. Ikan yang telah dikeringkan kemudian ditimbang per jam. Hasil penelitian dari proses pengeringan ikan keumamah dengan 1 kg tempurung pada per jam sekali menghasilkan rata-rata suhu 43 oC. Iridiasi surya menghasilkan nilai total pengeringan hybrid sebesar 4,701 MJ dan total energi pengeringan untuk pengeringan surya adalah sebesar 3,086 MJ. Laju pengeringan ikan keumamah mengasilkan rata-rata pengeringan hybrid sebesar 0,2% dan pengeringan surya sebesar 0,1% dengan nilai hasil kelembaban udara rata-rata pengeringan hybrid sebesar 45,3 oC dan pengeringan surya sebesar 56,9 oC. Hasil kecepatan udara rata-rata pengeringan hybrid sebesar 2,3 m/s dan pengeringan surya 2,0 m/s.Modification of Dryer of Hybrid Type Rack Models In Keumamah FishAbstract. Hybrid drying is drying that uses two or more sources of energy for the process of evaporation of water. This technology is an alternative technology for drying agricultural products. The mechanical drying of a hybrid system is in principle the same as mechanical drying in general. The procedure of research of drying common fish is done by, Prepare the testing equipment by installing the required components. Testing is placed in an open place.Testing on the dryer with an empty load before use.Prepare the sample, then cleaned and put into the drying rack.The dried fish is then weighed per hour.The results of the research process of drying the common fish with 1 kg of shell on an hourly basis produces an average temperature of 43 oC. Solar irridiation produces a total hybrid drying value of 4,701 MJ and total drying energy for solar drying is 3,086 MJ. The rate of drying of common fish yields an average hybrid drying of 0.2% and solar drying of 0.1% with an average humidity yield of hybrid drying of 45.3 oC and solar drying of 56.9 oC. The results of the average air speed of hybrid drying is 2.3 m/s and solar drying is 2.0 m/s.

3D modelling of buildings in Google Earth in Batam city, Indonesia is very important for knowledge about facility, infrastructure, and others.Three-dimensional (3D) visualisations are an interesting method for representing model outcomes. This research In Tunjuk island with coordinate, at Latitude: 0.984123°, and Longitude: 104.225606°, with technical terms, there are two alternative routes for implementation, and they both share the same starting stage. In (Figure 5) visible visual measurements of the master plan that has been made has a length 141.99 metre and width 54.25 metre with location at Latitude 0.984593° and Longitude 104.228073°. In (Figure 5) visible visual measurements of the master plan that has been made has a length 92.96 metre and width 135.46  metre with location at Latitude 0.984593° and Longitude 104.228073°. This paper presented a rapid visualisation tool for supporting the joint decision making in evaluation of design/renewal proposals in Batam City, Tunjuk Island, Indonesia. 3D building using Google Earth (GE) and combaining Geographic Information System (GIS) system be done officially on a sampling or auditing basis by a professional body or by researchers, or it could be done by volunteers and user groups.

Abstract The police are one of the law enforcers who have a very important role in the criminal justice system in Indonesia. The role and influence of the police in the criminal justice system will be reviewed from the investigation stage to the investigation, which will then be transferred to the prosecutor's office. The Police and the Prosecutor's Office as the two pillars of law enforcement in the function of investigation and prosecution in addition to Correctional Institutions as executors of crimes under the control of the Government's power. The police can be said to be the initial pillar in the course of a criminal justice system, because the police process is the initial stage of the criminal justice system. This type of research is normative legal research with a case approach, legislation, and analysis. This research will examine the position and important role of the police in the criminal justice system in Indonesia.