Jurnal Sains Dasar最新文献

KEANEKARAGAMAN CAPUNG (ORDO: ODONATA) DI WANA WISATA CURUG CIPENDOK KABUPATEN BANYUMAS PROVINSI JAWA TENGAH [奥多语：ODONATA]

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.52812

引用次数: 0

Comparison between Double and Triple Exponential Smoothing Methods for Forecasting Poverty Rate of Yahukimo Regency in 2025-2030 预测2025-2030年亚胡基摩县贫困率的双、三指数平滑方法比较

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.53345

Agustinus Langowuyo, Felix Reba, Yosefina Sarena

{"title":"Comparison between Double and Triple Exponential Smoothing Methods for Forecasting Poverty Rate of Yahukimo Regency in 2025-2030","authors":"Agustinus Langowuyo, Felix Reba, Yosefina Sarena","doi":"10.21831/jsd.v11i2.53345","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.53345","url":null,"abstract":"Currently, the government faces so many issues, one of which is poverty. However, it is not a new thing since many other countries also face this classic issue. Poverty, from an economic point of view, is measured by the people's inability to meet basic needs for food, not food in terms of expenditure. Based on data released by the Central Statistics Agency (BPS) regarding poverty rates in Indonesia, several areas are included in the highest poverty rates including East Nusa Tenggara, Maluku, Gorontalo and Papua. The poverty rates for this region are 21.21%, 17.99%, and 15.99%, respectively. In this regard, Papua has the highest poverty rate of the three provinces. According to BPS, the three poorest districts in Papua Province in 2017 included Deiyai Regency at 43.63%, Intan Jaya Regency at 42.23% and Yahukimo Regency at 39.33%. This study aimed to predict the poverty rate of Yahukimo district in 2025-2030. This research employed Double and Triple Exponential Smoothing methods. It used secondary data, namely data related to the poverty rate in Yahukimo Regency in percent (%) in 2003-2019. The results showed that the poverty rate data in 2025-2030 were 36.48%, 36.09%, 35.7%, 35.31%, 34.92% and 34.53% respectively. In other words, the poverty rate in Yahukimo Regency had decreased compared to previous years.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68451633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pemanfaatan Film Alginat dan Alginat/Montmorillonite sebagai Adsorben Cu(II) Alginat和Alginat/蒙脱石对Cu（II）的吸附

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.51544

Borneo Satria Pratama, Erliza Hambali, M. Yani, N. Matsue

{"title":"Pemanfaatan Film Alginat dan Alginat/Montmorillonite sebagai Adsorben Cu(II)","authors":"Borneo Satria Pratama, Erliza Hambali, M. Yani, N. Matsue","doi":"10.21831/jsd.v11i2.51544","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.51544","url":null,"abstract":"Air merupakan kebutuhan yang esensial untuk keberlanjutan hidup manusia dan lingkungan. Namun, World Water Forum telah memprediksi bahwa pada tahun 2025, Indonesia akan menjadi salah satu negara yang mengalami krisis air, yang salah satunya disebabkan oleh penurunan kualitas air akibat pencemaran limbah cair industri. Cu(II) merupakan salah satu logam berat pencemar dalam limbah cair industri yang dapat menyebabkan gangguan terhadap kesehatan manusia dan lingkungan. Oleh karena itu, adsorben berbasis film Alginat dan film alginat/montmorillonite telah dikembangkan untuk menjerap tembaga dari dalam air secara adsorptif. Pada penelitian ini, dilakukan pengujian performa adsorpsi larutan Cu(II) oleh film alginat (A-F-1%, A-F-1.5%, A-F-2%), film alginat montmorillonite (A-M-2%), dan bead alginat (A-B-2%) pada konsentrasi 1.5 mmol/L. Hasil penelitian menunjukkan bahwa kecepatan pengocokan, massa adsorben, morfologi adsorben, serta penambahan campuran Montmorillonite pada film berpengaruh terhadap kinerja adsorpsi Cu(II). Kinerja adsorpsi terbaik didapatkan pada adsorben A-F-2% dengan kecepatan pengocokan 150 rpm, yang menghasilkan persentase pengurangan konsentrasi tembaga dari dalam air sebesar 96,45% setelah tercapainya kesetimbangan (60 menit). Adsorben film Alginat memiliki kecocokan terhadap model isoterm Freundlich dan Langmuir, dengan nilai R2 99,99% untuk kedua model yang diregresikan secara linear.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45054208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Study of Taxonomic Affinity in 7 Species of Asteraceae Family Based on Morphological Characters 基于形态特征的7种菊科植物的分类亲和力研究

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.52351

Elfa Dina Rahmah Nahdloh, Lutfi Adi Hermawan, H. A. Akmalia, Putri Rabiatul Adawiyah

{"title":"The Study of Taxonomic Affinity in 7 Species of Asteraceae Family Based on Morphological Characters","authors":"Elfa Dina Rahmah Nahdloh, Lutfi Adi Hermawan, H. A. Akmalia, Putri Rabiatul Adawiyah","doi":"10.21831/jsd.v11i2.52351","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.52351","url":null,"abstract":"Morphological characters are important characters in determining plant relationships. This study aims to analyze the phenetic relationship of the 7 member of Asteraceae family based on morphological characters. The study was conducted in May – July 2022. We used 7 species of Asteraceae including Ageratum conyzoides L., Ageratum houstonianum Mill, Tithonia diversifolia (Hemsl.) A.Gray., Sonchus arvensis L., Erechtites valerianifolia (Link ex Spreng.) DC., Eupatorium odoratum L., and Tagetes erecta L. The equipment used were cameras, plant description books, and NTSYS software for taxonomic affinity analysis were used in this study. The results of the Asteraceae dendogram analysis showed that 2 clusters were formed, the first cluster containing the species Ageratum conyzoides L., Ageratum houstonianum Mill, Tagetes erecta L., Sonchus arvensis L., and Erechtites valerianifolia (Link ex Spreng.) DC., while the second cluster consisted of Tithonia diversifolia (Hemsl.) and Eupatorium odoratum L. The closest similarity coefficient of 0.8 was in the genus Ageratus in the first cluster and Tithonia diversifolia (Hemsl.) and Eupatorium odoratum L., in the second cluster. Based on this, it can be concluded that the morphological characters that influence the clustering of 7 species Asteraceae in this study are flower type, flower color, leaf base, leaf venation, leaf margin, and leaf color.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42999811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aktivitas Antibakteri Nanokomposit TiO2/Cu dan TiO2/CuO terhadap Bakteri Bacillus cereus 抗菌素/Cu的纳米复合材料和杆菌对杆菌小脑细菌的TiO2/CuO活性

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.53247

Ine Nuhaeroh, Devi Indah Anwar, Lela Lailatul Khumaisah

{"title":"Aktivitas Antibakteri Nanokomposit TiO2/Cu dan TiO2/CuO terhadap Bakteri Bacillus cereus","authors":"Ine Nuhaeroh, Devi Indah Anwar, Lela Lailatul Khumaisah","doi":"10.21831/jsd.v11i2.53247","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.53247","url":null,"abstract":"Perkembangan nanoteknologi sebagai nanomaterial telah banyak dimanfaatkan salah satunya dalam bentuk nanokomposit. Nanokomposit banyak diaplikasikan sebagai fotokatalis untuk mendegradasi logam berat dan dewasa ini banyak penelitian mengenai manfaat nanokomposit sebagai bahan antibakteri. Penelitian ini bertujuan menganalisis aktivitas antibakteri dari nanokomposit TiO2/Cu dan TiO2/CuO hasil sintesis terhadap Bacillus cereus. Metode yang digunakan dalam melakukan sintesis nanokomposit adalah metode impregnasi basah. CuSO4 merupakan prekursor yang digunakan untuk mensinteis TiO2/Cu sedangkan TiO2/CuO menggunakan CuCl2. Suhu kalsinasi yang digunakan adalah 6000C. Material TiO2/Cu yang dihasilkan berukuran 29.01 nm sedangkan TiO2/CuO 27.64 nm. Uji karaterisasi X-Ray Diffraction (XRD) dilakukan untuk mengetahui pembentukkan nanokomposit TiO2/Cu dan TiO2/CuO. Puncak difraksi pada sudut 2θ TiO2 yaitu 25.33o, CuO 38.70, Cu 43.60 dan menandakkan nanokomposit berhasil terbentuk. Hasil pengujian aktivitas antibakteri terhadap Bacillus cereus dengan menggunakan metode difusi cakram menunjukkan TiO2/Cu memiliki zona hambat bakteri 8.10 mm dan TiO2/CuO 11.40 mm dan termasuk ke dalam antibakteri kuat sedangkan nanopartikel CuO merupakan antibakteri sedang dengan nilai sebesar 7.85 mm. Hasil ini menunjukkan nanokomposit memiliki daya hambat bakteri lebih tinggi dibandingkan nanopartikelnya.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48088662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pengaruh Giberelin dan Zat Retardan terhadap Pemanjangan Batang Jagung (Zea mays L.) Giberelin和Zat Retardan的创始人反对扩建Jagung Bath（Zea mays L.）

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.49204

Annisa Latifa, Toto Indriyatmoko

{"title":"Pengaruh Giberelin dan Zat Retardan terhadap Pemanjangan Batang Jagung (Zea mays L.)","authors":"Annisa Latifa, Toto Indriyatmoko","doi":"10.21831/jsd.v11i2.49204","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.49204","url":null,"abstract":"Penelitian ini bertujuan untuk memperoleh informasi mengenai konsentrasi optimum giberelin yang berpengaruh meningkatkan pemanjangan batang dan konsentrasi paklobutrazol yang berpengaruh menghambat pemanjangan batang pada tanaman jagung (Zea mays L.). Penelitian dilaksanakan di Krajan Wedomartani Yogyakarta dari bulan Maret hingga bulan April 2022. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan yaitu tanpa perlakuan (kontrol), giberelin 20 ppm dan 40 ppm, serta paklobutrazol 50 ppm dan 100 ppm. Peubah yang diamati adalah panjang batang dan sel epidermis batang tanaman jagung (Zea mays L.). Analisis statistik meliputi sidik ragam dan dilanjutkan dengan uji jarak berganda duncan (DMRT) pada taraf kepercayaan 95%. Hasil menunjukkan bahwa konsentrasi optimum giberelin yang meningkatkan pemanjangan batang secara signifikan pada tanaman jagung (Zea mays L.) adalah 40 ppm, sedangkan konsentrasi optimum paklobutrazol yang menghambat pemanjangan batang secara signifikan pada tanaman jagung (Zea mays L.) adalah 100 ppm. Hal tersebut juga ditunjukkan dari nilai panjang sel epidermis tertinggi pada perlakuan giberelin 40 ppm dan nilai terendah pada perlakuan paklobutrazol 100 ppm.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45760579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analisis Tingkat Kerawanan Bencana Alam Banjir di Kabupaten Purbalingga dengan Fuzzy Logic 用模糊逻辑分析影响胶囊中的自然灾害影响程度

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.52546

{"title":"Analisis Tingkat Kerawanan Bencana Alam Banjir di Kabupaten Purbalingga dengan Fuzzy Logic","authors":"","doi":"10.21831/jsd.v11i2.52546","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.52546","url":null,"abstract":"Banjir merupakan peristiwa atau keadaan dimana terendamnya suatu daerah karena volume air meningkat yang dapat terjadi di wilayah perkotaan atau perdesaan. Salah satu upaya untuk meminimalisir dampak yang ditimbulkan dari bencana banjir adalah dengan mengetahui klasifikasi tingkat kerawanan bencana banjir. Tujuan penelitian ini adalah untuk mengetahui analisis tingkat kerawanan banjir di Kabupaten Purbalingga dengan fuzzy logic. Untuk menentukan tingkat kerawanan bencana alam banjir digunakan parameter penyebab banjir diantaranya data curah hujan, jenis tanah, kemiringan lereng, ketinggian wilayah, dan tutupan lahan. Data tersebut diolah dengan overlay sehingga diperoleh data input untuk proses fuzzy logic mamdani dengan langkah-langkah diantaranya pembentukan himpunan fuzzy, basis aturan, fungsi implikasi MIN, komposisi aturan dengan MAX, dan defuzzifikasi sehingga diperoleh tingkat kerawanan banjir di Kabupaten Purbalingga. Hasil penelitian menunjukan bahwa Kabupaten Purbalingga memiliki tingkat kerawanan rendah sebanyak 25 wilayah dengan luas 57,5467Ha, kerawanan sedang sebanyak 317 wilayah dengan luas 2303,385Ha, kerawanan tinggi sebanyak 756 wilayah dengan luas 11232,79Ha dan kerawanan sangat tinggi sebanyak 188 wilayah dengan luas 5595,286Ha.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48047462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Produksi Bioetanol dari Mikroalga Laut Ambon Chlorella sp. Galur TAD 由氯化钾微藻类生产的生物乙醇

Jurnal Sains Dasar Pub Date : 2023-04-09 DOI: 10.21831/jsd.v11i2.51085

引用次数: 0

The Calcination Effect on the Crystallinity, Nitrogen Content, and Pore Structure of Nitrogen-Doped Titanium Dioxide 煅烧对氮掺杂二氧化钛结晶度、含氮量和孔隙结构的影响

Jurnal Sains Dasar Pub Date : 2022-11-01 DOI: 10.21831/jsd.v11i2.60004

C. Kusumawardani

{"title":"The Calcination Effect on the Crystallinity, Nitrogen Content, and Pore Structure of Nitrogen-Doped Titanium Dioxide","authors":"C. Kusumawardani","doi":"10.21831/jsd.v11i2.60004","DOIUrl":"https://doi.org/10.21831/jsd.v11i2.60004","url":null,"abstract":"Mesoporous nitrogen-doped titanium dioxide nanomaterials have been synthesized through a one-step sol gel process with dodecylamine as the pore template as well as the nitrogen source. The calcination process plays an important role in the crystallization process, determination of doped nitrogen, and pore formation. The effect of calcination temperature on the material structure was studied by calcination treatment of the as-synthesized material at several temperature variations. The resulting materials were characterized using FTIR, XRD, XPS, and N2 gassorption analysis. The results showed that the anatase TiO2 crystal structure began to form with calcination at 400 °C. The higher calcination temperature tends to cause the transformation of anatase crystal phase into rutile. The higher calcination temperature also affects the doped nitrogen content, where the pore-templating molecules begin to disappear at a calcination temperature and leaving a number of dopants on TiO2. All dopants are released from TiO2 at a calcination temperature of 600 °C. The optimum calcination temperature to form mesoporous structure was 450 °C, and the sintering occurs at a calcination temperature higher than optimum temperature indicated by the collapse of the pore structure.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41696762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analisis Korelasi Indeks Massa Tubuh (IMT) dalam Keluarga Remaja Putri yang Mengalami Obesitas di Yogyakarta 日惹年轻公主肥胖家庭的体重指数相关性分析

Jurnal Sains Dasar Pub Date : 2022-05-06 DOI: 10.21831/jsd.v11i1.44921

Paramita Cahyaningrum Kuswandi, Tutiek Rahayu

{"title":"Analisis Korelasi Indeks Massa Tubuh (IMT) dalam Keluarga Remaja Putri yang Mengalami Obesitas di Yogyakarta","authors":"Paramita Cahyaningrum Kuswandi, Tutiek Rahayu","doi":"10.21831/jsd.v11i1.44921","DOIUrl":"https://doi.org/10.21831/jsd.v11i1.44921","url":null,"abstract":"Obesitas merupakan salah satu masalah kesehatan bagi masyarakat di dunia. WHO memperkirakan terdapat 2,8 juta orang yang meninggal akibat obesitas. Prevalensi obesitas pada orang dewasa dengan usia 18 tahun di Indonesia, terutama di DIY mengalami peningkatan dari tahun 2007-2018. Salah satu faktor yang dapat menyebabkan obesitas yaitu faktor genetik. Peran faktor genetik dalam pewarisan obesitas akan tampak pada pola pewarisan IMT di dalam keluarga dan dapat dilihat secara kuantitatif dengan adanya korelasi antara IMT anggota keluarga. Penelitian ini bertujuan untuk mengetahui korelasi antara IMT ayah, ibu, kakek, dan nenek dengan IMT remaja putri yang mengalami obesitas di Yogyakarta. Penelitian ini merupakan penelitian observasional dengan desain cross sectional. Teknik sampling yang digunakan yaitu purposive sampling. Responden pada penelitian ini adalah 36 remaja putri usia 15-24 tahun dengan IMT ≥ 25 di Yogyakarta. Variabel independen penelitian adalah IMT ayah, ibu, kakek, dan nenek. Variabel dependen penelitian adalah IMT remaja putri. Data IMT dianalisis menggunakan SPSS versi 15. Uji yang digunakan yaitu uji normalitas Shapiro-Wilk, uji korelasi Spearman, dan uji korelasi berganda. Hasil penelitian menunjukkan bahwa tidak terdapat hubungan yang signifikan (p 0,05) antara IMT keluarga (ayah, ibu, kakek, dan nenek) dengan IMT remaja putri yang mengalami obesitas di Yogyakarta.","PeriodicalId":31255,"journal":{"name":"Jurnal Sains Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48677411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0