This research is motivated by the phenomenon of adolescent girls experiencing social anxiety at SMA Porong Sidoarjo. This study uses a descriptive quantitative research method with data collection in this study using a Likert scale model, namely the social anxiety scale modified from the Adawiyah Robiah scale. The sample in this study were 233 young women from 683 populations. The results showed that young women had high social anxiety, there was a frequency of Social Anxiety Levels with the acquisition of a percentage of 38%, namely young women had high social anxiety and based on the aspect of obtaining 37% in the negative evaluation aspect.

The potential of limestone in Gorontalo City is very large and distributed over a wide area. This enormous potential has not yet been exploited. This study aims to determine the chemical content of limestone and the use solution of limestone to improve regional development. Field data collection was carried out in two places, namely Tanjung Keramat and Buli’ide. Sampling was conducted at the coordinates N 0°29′38.93″ and E 123°2′49.62″ for station 1, N 0°32′53.7″ and E 123°1′56.19″ for station 2. The method used in this research is chemical composition analysis using X-Ray Fluorescence (XRF). The results of the analysis of the chemical constituents of Coral Limestone are CaO 83.35%, Fe2O3 6.92%, SrO 9.35% and ZrO2 3.25%. The prospect of Coral Limestone can be used in various industrial fields. Coral Limestone can be used in the mining industry, the cement industry, the sugar industry, ceramic raw materials, building materials, agricultural and road stabilizers. This indicates that the City of Gorontalo has the prospect of development and utilization of limestone resources available, in order to encourage self-reliance and open employment for community.

<em>Indonesia is a country that has a lot of natural resources. Natural resources are widely used in various areas of human life. One of the resources that is often used is limestone. Limestone is a non-metallic mining material that has considerable potential and reserves and spreads across almost all parts of Indonesia, but the exact amount of reserves is not yet known. The research aims to predict the amount of packstone-type limestone reserves using geophysical methods. This research was conducted using the geoelectric method with the Schlumberger configuration, where the resistivity geoelectric data obtained variations in resistivity and layer thickness. From this data, it is then interpreted to determine the type of rock in the surface area, and making a 3D model to determine the distribution of limestone in the study area and to calculate the amount of limestone reserves in the study area. Based on the research results, it is known that the research area is dominated by packstone with a resistivity value of 16.6 Ωm - 1.3x105 Ωm. The calculation result of packstone reserves in the study area is </em>73,629,403<em>tons.</em>

Nagari Sungai Buluh Timur merupakan salah satu daerah dengan sebagian besar mata pencarian nya adalah beternak dan bertani. Untuk membantu masyarakat mempermudah pekerjaannya, maka perlu masukkan teknologi dalam pelaksanaannya. Salah satunya dengan pembuatan mesin penetas telur berbasis kontrol otomatis ini. Adapun tujuan dari pembuatan proposal tugas akhir ini adalah 1) mengembangkan mesin penetas telur Berbasis mikrokontroler dan 2) uji kinerja sistem mesin penetas telur berbasis mikrokontroler. Dengan menggunakan mesin penetas telur dapat membantu penetasan telur dengan jumlah yang besar daripada cara alami, dan juga dapat digunakan sebagai bahan penelitian. Mesin penetas berbasis mikrokontroler ini di rancang untuk dapat mengendalikan kadar suhu dan kelembaban di dalam ruangan mesin penetas. Metode pengembangan mesin penetas secara otomatis adalah identifikasi kebutuhan komponen, mendesain rancangan mesin penetas telur, membuat sistem mekanik, pemrograman, dan tahap terakhir melakukan pengujian alat sehingga didapatkan hasil alat dengan kinerja yang akurat sesuai dengan apa yang diharapkan. Dengan pemanas 3 buah lampu pijar dengan total 35 Watt untuk kapasitas 40-50 butir telur, mesin ini juga menggunakan sistem kontrol dari arduino uno dimana akan dijaga suhu antara 38-39OC. Mikrokontroler adalah suatu chip yang berfungsi sebagai pengontrol dan dapat menyimpan program didalamnya. Hasil pengotrolan suhu oleh mikrokontroler akan memberikan informasi suhu yang akan ditampilkan pada LCD. Dari hasil pengujian menunjukkan, selama 15 hari pengujian menunjukkan sudah tampak emrio telur. Kemudian, dilakukan Introduksi ke masyarakat Nagari Sungai Buluh. Metode penyuluhan dilakukan dengan cara pendekatan/sosialisasi kepada masyarakat Nagari Sungai Buluh Timur. Materi yang di sampaikan yaitu bagaimana cara membuat dan menggunakan mesin penetas telur ini hingga menghasilkan bibit ternak yang baik.