NITRIDASI PADA PADUAN BERBASIS FeCrNi SEBAGAI KANDIDAT BAHAN STRUKTUR REAKTOR GUNA MENINGKATKAN KETAHANAN KOROSI TEMPERATUR TINGGI

Nitriding has been carried out on alloys based on FeCrNi as reactor structural material to improve the resistance of high temperature corrosion. The aim of determine the ratio of duration of nitriding and the duration of corrosion on the top of the crystal FeCrNi, and determine the ratio of N elements contained in the nitriding of FeCrNi during a period of 5 hours and 11 hours. General methodology of nitriding temperature of 5250C with a variation clock of 3, 5, 8, and 11 secon and corrosion by high temperature with a temperature of 6000C in the time of 5 hours, then tested using hardness test using vikers, SEM-EDS test to learned of many elements of N which diffuse in FeCrNi who has been to nitriding, and XRD tests to determine the field at the top of the crystal, corrosion testing to determine change in sample weight before and after corrosion. SEM characterization results of the formation of a best layer of nitrogen at the time of 11 hours with layer of nitrogen on the surface of approximately 18.49% of the mass (26.92% atom), it indicates that the longer the nitriding time, more nitrogen to diffuse. From the results of testing hardness 8 hours nitriding with the temperature 5250C has the highest hardness value compared with other specimens with VHN 183,868 kg/mm2. From the XRD results at the angle of about 64,975o form fields (220), and angle 44,6450 field (110). From the corrosion test results, all of samples experiencing weight gain because it shows the process of oxidation in the material that formed oxide on its surface. Keywords: nitriding pack cementied, SEM-EDS, XRD, and Vickers, high temperature corrosion

ANALISIS LUKISAN ANAK-ANAK PAUD ASY-SYAFI’IYYAH KARANGPOH KRIAN JAWA TIMUR

Seni difungsikan oleh anak sebagai media ungkapan perasaan, ide, gagasan dan pikiran anak.Karyanya sebagai alat bermain imajinasi, mengutarakan ide dan juga sebagai media komunikasi.Penelitian dengan judul “ Analisis Lukisan Anak-anak PAUD Asy-Syafi’iyyah Karangpoh Krian JawaTimur” bertujuan untuk mendeskripsikan konsep lukisan, tema lukisan dan karakteristik bentuk visuallukisan anak. Penelitian ini menggunakan metode deskriptif kualitatif, dengan metode pengumpulandata melalui observasi, wawancara, dokumentasi dan studi literatur. Melalui analisis data hasil karyalukisan anak yang telah diambil dari 20 anak di PAUD Asy-Syafi’iyyah diperoleh simpulan bahwalingkungan memengaruhi kreativitas anak dalam pengambilan konsep lukisan mereka dan tanpaadanya suatu batasan tema yang telah ditentukan membuat anak semakin leluasa untuk berimajinasiserta menuangkan pemikirannya dalam bentuk sebuah lukisan. Berdasarkan wawancara yangdilakukan kepada anak-anak, mereka melukis berdasarkan imajinasi, pengalaman dan kretivitasnya.Karakteristik bentuk visual lukisan anak menunjukkan perkembangan yang beragam sesuai umur dankemampuannya. Dari hasil lukisan anak dapat dilihat bahwa unsur visual garis sudah terkontrol dansudah dapat terarah, bentuk visual objek sudah dikenali, pemilihan warna sesuai dengan imajinasidan warna kenyataan, beberapa sudah dapat menggunakan konsep bentuk keruangan dan waktu.Sehingga dari penelitian ini perkembangan psikologi anak dapat dilihat di dalam hasil karyanya.Kata kunci: analisis lukisan, lukisan anak, PAUD Asy-Syafi’iyya

PENGARUH STRUKTUR KEPEMILIKAN, PROFITABILITAS, UKURAN PERUSAHAAN TERHADAP STRUKTUR MODAL

Penelitian ini bertujuan untuk menguji pengaruh struktur kepemilikan, profitabilitas, ukuran perusahaan terhadap struktur modal. Obyek penelitian perusahaan pertambangan (mining) yang terdaftar di Bursa Efek Indonesia (BEI) periode 2017-2019. Penelitian ini menggunakan metode kuantitatif, sampel penelitian diperoleh menggunakan metode purposive sampling dengan kriteria-kriteria khusus. Populasi yang digunakan dalam penelitian ini sebanyak 26 perusahaan dari data yang diobservasi sebanyak 56 sampel, metode analisis yang digunakan menggunakan analisis regresi linier berganda dengan menggunakan perangkat lunak SPSS (Statistical Product and Service Solution) versi 25. Hasil dari penelitian ini menunjukkan bahwa struktur kepemilikan manajerial tidak berpengaruh terhadap struktur modal, struktur kepemilikan institusional tidak berpengaruh terhadap struktur modal, profitabilitas berpengaruh negatif terhadap struktur modal, ukuran perusahaan tidak berpengaruh terhadap struktur moda

The Growth Response of Toman Fish (Channa micropeltes Cuvier.) with Different Satisfaction Times

The high price of toman fish (Channa micropeltes Cuvier.) in the market is one of the reasons for the need for toman fish farming activities.  However, the expensive price of commercial feed causes the cost of cultivation to be high.  Effective and efficient feeding can reduce feed costs.  Satisfaction is done so that the stomach is emptied in an uncharacteristic time, so it is expected to increase the appetite of Toman Fish.  This study aims to determine the effect of grazing time on the growth of toman fish. This research was conducted in the Wet Fisheries Laboratory, Faculty of Agriculture, Muhamadiyah University of Palembang.  From September to November 2021.   The research method used is an experimental trial with a Non-Factorial Complete Randomised Design. Treatment factors include P1 (No gratification/control), P2 (1 day fasting 4 days fed), P3 (1 day fasting 3 days fed), P4 (1 day fasting 2 days fed), and P5 (1 day fasting 1 day fed). The changes observed were weight growth, length growth, and survival rate (SR).  The treatment of 1-day of fasting and 1 day fed to toman fish (Channa micropeltes Cuvier.) is the best treatment for length growth (3.35 cm), weight (11.06 grams), and survival (89%)

Pengaruh Brand Awareness dan Persepsi Label Halal Terhadap Keputusan Pembelian Produk Personal Care Bagi Pria: The Effect of Brand Awareness and Perceptions of Halal Label on Purchasing Decisions of Personal Care Products For Men

The purpose of this study was to determine the effect of brand awareness and perceptions of halal label on purchasing decisions for personal care products among students at the Syiah Kuala University (USK). The research was conducted in July - October 2022. This research used a quantitative descriptive method, using a purposive sampling technique. The number of samples was 100 student respondents at USK who had used Kahf's personal care products. The instrument used is a questionnaire that has been tested for validity and reliability. The analytical method used is the classical assumption test analysis and multiple linear regression analysis. Data processing was carried out using SPSS software program version 25. The research data was normally distributed, and there were no symptoms of multicollinearity and heteroscedasticity. The results showed that brand awareness and perceptions of halal label have a posive and significant effect on purchasing decisions for personal care products, either partially or both simultaneously. Regarding the brand awareness variable, the existence of the product is realized mainly from advertising, easy to find, and because of its variety. Meanwhile, in the halal label perceptions variable, consumers trust the product because of the halal label, the guarantee of halalness and the guarantee of being free from the use of haram ingredients. The results of the coefficient of determination test show that the decision to purchase personal care products can be explained by brand awareness and perceptions of halal labels by 53.3%, while the remaining 46.7% is explained by other variables not examined in this study. Keywords: brand awareness, consumer perception, halal label, personal care, purchasing decision

PENERAPAN MODEL PEMBELAJARAN INKUIRI TERSTRUKTUR DENGAN MIND MAPPING UNTUK MENINGKATKAN HASIL BELAJAR BIOLOGI KELAS VIII7

AbstrakPenelitian ini bertujuan untuk mendeskripsikan aktivitas guru, aktivitas peserta didik, kemampuan membuat mind mapping dan hasil belajar kognitif dengan menerapkan model pembelajaran inkuiri terstruktur dengan bantuan teknik mind mapping di kelas VIII7 SMPN 04 Kota Bengkulu pada materi sistem ekskresi manusia. Jenis penelitian ini adalah penelitian tindakan kelas yang dilakukan dalam dua siklus dengan setiap siklusnya terdiri atas 4 tahapan yaitu: tahap perencanaan, pelaksanaan tindakan, pengamatan dan refleksi. Subyek penelitian ini adalah guru dan peserta didik kelas VIII7 SMPN 04 Kota Bengkulu tahun ajaran 2017/2018, yang terdiri dari 35 peserta didik. Instrumen penelitian yang digunakan adalah lembar observasi, lembar penilaian mind mapping dan lembar tes. Hasil penelitian dari analisa data observasi guru siklus I diperoleh skor rata-rata 26 (baik), siklus II menjadi 30 (baik). Hasil analisis data observasi peserta didik siklus I diperoleh skor rata-rata 24 (baik), siklus II menjadi 30 (baik). Hasil analisis data penilaian kemampuan membuat mind mapping siklus I diperoleh persentase nilai 65% (baik), siklus II menjadi 80% (baik). Kemudian hasil belajar ranah kognitif siklus I mendapatkan persentase 65,71%, siklus II menjadi 85,71%. Dari hasil penelitian disimpulkan bahwa model pembelajaran Inkuiri terstruktur dengan bantuan teknik mind mapping dapat meningkatkan hasil belajar peserta didik kelas VIII7 SMPN 04 Kota Bengkulu.Kata Kunci : Inkuiri Terstruktur, Mind Mapping, Hasil Belajar.AbstractThis study aims to describe teaching activities, learning activities, ability to make mind mapping and students' learning outcome by implementation of structured inquiry model at VIII.1 class of SMPN 04 Kota Bengkulu on the material of human excretion system. Type of this research was a classroom action research that was conducted in two cycles and each cycle consists of four stages: planning, implementation of action, observation, and reflection. The subjects of the study were teachers and students at VIII7 class of SMPN 04 Kota Bengkulu in academic year 2017/2018, which was consisted of 35 students. The research instrument was used observation sheet, mind mapping assessment sheet and test sheet. The results of the teachers' observation data analysis in cycle I obtained an average score of 26 (good), cycle II to 30 (good). The result of data observation analysis of learning activities,  cycle I obtained an average score of 24 (good), cycle II to 30 (good). The result of data observation analysis of students’ ability to make mind mapping, cycle I obtained an persentage score of 65% (good), cycle II to 80% (good). Then, the learning result of cognitive aspect of cycle I got 65,71%, cycle II to 85,71%%. As the conclusion of this study, that Structured inquiry learning model with mind mapping tehnique could improve students' learning outcome at VIII7 class of SMPN 04 Kota Bengkulu.Keywords: Structured Inquiry, Mind Mapping, Learning Outcome

Creating a Village Website as a Supporting Medium for Community Members’ Business Productivity

The covid-19 pandemic has worsened the economy of the informal sector. Online media may serve as one solution for opening new business spaces. The main problem encountered by our partner is the lack of understanding and use of digital media as a means of promotion. This activity aims to facilitate the creation of a village website as a supporting medium to increase the productivity of the residents.The partner of this community service program is the community members of RT 01 RW 34 Padukuhan Banjeng, Kanoman, Maguwoharjo, Depok, Sleman. This activity employed the Participatory Rural Appraisal (PRA) method. The implementation of these community service activities have successfully increased four aspects of community members’ productivity: 1) human development, shown by the higher understanding and ability in using the website to promote their business and increase the value of their business products; 2) business development, demonstrated by the enthusiasm of seventeen business owners in adding content to the website and in giving access to community members to help develop their digital-based businesses; 3) environmental development, manifested in pictures of the village on the website to provide a good impression of the village; and 4) institutional development, illustrated by the initiation of a new institutional model  to ensure the sustainable use of the website, as a digital media to promote the community members’businesses

Anatomi SCALP Akupunktur

Akupunktur telah dikenal oleh Bangsa China sejak 5000 tahun yang lalu. Pengobatan akupunktur dilakukan dengan menekan tubuh daerah tertentu dengan menggunakan batu atau kayu, seiring berkembangnya zaman cara pengobatan akupunktur menggunakan duri dari tumbuhan, duri ikan, dan tulang yang diasah seperti jarum yang halus. Dari jarum yang terbuat dari perunggu, perak dan emas. Hingga saat ini jarum yang dipakai terbuat dari logam anti karat atau stainless stell

Mudah Akupunktur Melalui Anatomi

Akupunktur berasal dari kata acus yang memiliki arti jarum dan puncture yang berarti tusuk. Akupunktur merupakan salah satu pengobatan dengan cara menusukkan jarum ke titik-titik akupunktur di dalam tubuh. Pengobatan ini telah dikenal oleh bangsa China sejak 5000 Tahun yang lalu. Pada saat itu akupunktur dilakukan dengan menekan tempat tertentu pada tubuh menggunakan batu dan bambu runcing. Alat yang digunakan kemudian berubah seiring dengan perkembangan zaman yaitu menggunakan duri tanaman, tulang ikan lalu menggunakan jarum dari perunggu. Sejarah ini tertulis dalam buku "Huang di Neijing" atau "The Yellow Emperor's Classic of internal Medicine" yang diterbitkan pada zaman Cun Ciu Can Kuo pada Tahun 770-221 M