bluuebunny/crossref_metadata_2025 huggingface dataset:
PEMODELAN DAN PERAMALAN VOLATILITAS SAHAM MENGGUNAKAN MODEL INTEGRATED GENERALIZED AUTOREGRESSIVE CONDITIONAL HETEROSCEDASTICITY
Authors: Dadan Kusnandar Megawati, Shantika Martha,
Published: December 2020

Heteroskedastisitas pada sebagian besar data deret waktu ekonomi dan keuangan dapat diselesaikan dengan model ARCH/GARCH. Namun dalam penerapannya model ARCH/GARCH memiliki beberapa kelemahan, diantaranya adalah ketidakmampuannya untuk melihat transisi atau perubahan perilaku antara volatilitas rendah dan volatilitas tinggi. Oleh karena itu, model ARCH/GARCH tersebut dimodifikasi menggunakan model integrated generalized autoregressive conditional heteroscedasticity (IGARCH). Pada  model IGARCH, stasioneritas terpenuhi apabila memenuhi syarat jumlah koefisien semua parameter sama dengan satu. Pemodelan dilakukan dengan membentuk ARIMA sebagai mean model, dilanjutkan dengan memodelkan ARCH/GARCH dan selanjutnya adalah dengan memodelkan varians bersyarat IGARCH dengan jumlah koefisien parameter sama dengan satu. Data yang digunakan adalah data mingguan harga saham S&P 500 dari 19 September 2011 sampai 10 Juni 2019. Model peramalan volatilitas saham yang diperoleh adalah IGARCH(2,1) dengan nilai MAPE sebesar 19,44%. Hasil peramalan untuk 5 minggu ke depan menunjukkan bahwa volatilitas harga saham mengalami penurunan. Kata Kunci: Varians Bersyarat, Heteroskedastisitas, IGARCH
ESTIMASI PARAMETER MODEL GEOGRAPHICALLY WEIGHTED LOGISTIC REGRESSION
Authors: Naomi Nessyana Debataraja Fika Dian Lestari, Dadan Kusnandar,
Published: December 2020

Metode Geographically Weighted Logistic Regression (GWLR) merupakan pengembangan metode regresi logistik dengan mempertimbangkan faktor letak geografis. Faktor letak geografis ini digunakan sebagai pembobot dan menunjukkan sifat lokal pada model GWLR. Metode ini digunakan ketika data memiliki pengaruh heterokedastisitas spasial. Penaksiran parameter model GWLR menggunakan metode Maximum Likelihood Estimation (MLE). Sedangkan pengujian yang dilakukan untuk mengetahui variabel yang signifikan adalah dengan metode uji Wald. Tujuan penelitian ini adalah untuk mengetahui proses estimasi parameter dalam model GWLR dengan pembobot yang digunakan merupakan fungsi kernel. Hasil penelitian menunjukkan model GWLR untuk jumlah variabel lebih dari dua adalah . Kata Kunci: Regresi logistik, pembobot, faktor letak geografis.
HAMPIRAN SOLUSI PERSAMAAN PANAS DIMENSI SATU DENGAN METODE BEDA HINGGA CRANK-NICOLSON
Authors: Setyo Wira Rizki Linisius Caesar Kevin Sinopa, Evi Noviani,
Published: December 2020

Persamaan panas atau disebut juga sebagai persamaan difusi adalah persamaan diferensial parsial berjenis parabolik yang terbentuk karena adanya proses perpindahan panas. Dalam penelitian ini, model dari persamaan panas yang diterapkan ialah berdimensi satu, yaitu persamaan yang hanya memiliki satu variabel spasial. Metode beda hingga merupakan suatu metode yang dapat menyelesaikan permasalahan kasus seperti persamaan panas dimensi satu yang dalam penerapannya didasarkan pada pendekatan deret Taylor. Dengan demikian, penelitian ini bertujuan untuk mengetahui model dari persamaan panas berdimensi satu dan menganalisis solusi persamaan tersebut menggunakan pendekatan metode beda hingga Crank-Nicolson. Pertama-tama, memodelkan proses perpindahan panas di sebuah penampang batang ke dalam bentuk persamaan diferensial parsial. Setelah diperoleh model, selanjutnya mendiskritisasikan persamaan panas dimensi satu dengan menggunakan skema Crank-Nicolson berdasarkan turunan numerik. Hasil diskritisasi ini membentuk pola iterasi agar memperoleh suatu sistem persamaan linier. Kemudian sistem persamaan linier diselesaikan sehingga menghasilkan solusi yang berupa matriks. Model persamaan panas dimensi satu adalah . Solusi persamaan panas dimensi satu dengan menggunakan pendekatan metode beda hingga Crank-Nicolson dinyatakan dalam bentuk umum yakni . Berdasarkan bentuk dari solusi tersebut, maka dilakukan simulasi menggunakan program Scilab. Hasil simulasi menunjukkan bahwa terjadi perubahan suhu yang dipengaruhi oleh waktu akibat adanya proses perpindahan panas. Selain itu, galat yang diperoleh relatif kecil bahkan mendekati nol sehingga sangat mendekati nilai sejatinya. Kata Kunci: Pendekatan Deret Taylor, Persamaan Panas Dimensi Satu, Metode Beda Hingga, Skema Crank-Nicolson.
PENDEKATAN METODE BAYESIAN GELF PADA MODEL SURVIVAL EKSPONENSIAL UNTUK MENENTUKAN PREMI TUNGGAL PADA ASURANSI
Authors: Setyo Wira Rizki Santi, Shantika Martha,
Published: December 2020

Model survival didefinisikan sebagai suatu distribusi probabilitas untuk variabel random yang berkaitan dengan usia serta ketahanan suatu produk ataupun jiwa. Model survival dalam penelitian ini membahas tentang fungsi ketahanan hidup dari suatu individu. Model survival diaplikasikan untuk mendapatkan nilai premi asuransi jiwa dwiguna. Premi asuransi dwiguna didapatkan dengan pendekatan metode Bayesian. Metode Bayesian adalah metode yang digunakan untuk menentukan distribusi posterior. Langkah yang dilakukan untuk mendapatkan distribusi posterior yaitu mengalikan fungsi likelihood dengan distribusi prior. Kemudian diperoleh distribusi posterior yang digunakan untuk mengestimasi metode Bayesian GELF (General Entropy Loss Function) pada model survival, dan diaplikasikan ke APV (Actuarial Present Value) asuransi jiwa dwiguna. Berdasarkan penelitian diketahui bahwa premi asuransi jiwa dwiguna pada seseorang berusia 30 tahun dengan jangka waktu 10 tahun didapat harga premi sebesar Rp78.742.900.  Kata kunci: Model survival, Metode Bayesian, Distribusi posterior.
PENERAPAN GSTAR-SUR PADA JUMLAH PENUMPANG PESAWAT DOMESTIK DI BANDARA INDONESIA
Authors: Hendra Perdana Gilang Habibie, Yundari,
Published: December 2020

Generalized space time autoregressive (GSTAR) adalah model ruang waktu yang banyak digunakan di Indonesia. Sebagian besar penelitian model GSTAR menggunakan ordinary least square (OLS) untuk mengestimasi parameter. Namun, estimasi dengan metode OLS pada model GSTAR dengan residual saling berkorelasi akan menghasilkan estimator yang tidak efisien terutama pada data musiman. Metode estimasi yang sesuai untuk residual yang saling berkorelasi adalah generalized least square (GLS), yang biasa digunakan dalam model seemingly unrelated regression (SUR). Penelitian ini bertujuan untuk menganalisis model GSTAR-SUR dan membandingkannya dengan GSTAR-OLS dengan bobot seragam dan jarak. Data yang digunakan adalah data jumlah penumpang pesawat domestik setiap bulan di Bandara Polonia/Kualanamu, Soekarno-Hatta, Juanda dan Ngurah Rai dari Januari 2006 hingga September 2019. Hasil estimasi parameter GSTAR-SUR dengan bobot seragam adalah Polonia/Kualanamu (∅10=-0,494; ∅11=0,046), Soekarno-Hatta (∅10=-0,300; ∅11=-0,828), Juanda (∅10=-0,451; ∅11=0,033) dan Ngurah Rai (∅10=-0,198; ∅11=-0,019). Sedangkan GSTAR-SUR dengan bobot jarak menghasilkan estimasi Polonia/Kualanamu (∅10=-0,492; ∅11=0,026), Soekarno-Hatta (∅10=-0,292; ∅11=-1,186), Juanda (∅10=-0,455; ∅11=0,058) dan Ngurah Rai (∅10=-0,211; ∅11=0,017). Berdasarkan nilai MAPE GSTAR-SUR lebih baik dari GSTAR-OLS dengan nilai MAPE untuk model GSTAR-OLS adalah 12,90% pada bobot seragam dan 13,43% pada bobot jarak. Model GSTAR-SUR menghasilkan nilai MAPE 6,65% untuk bobot seragam dan 7,06% untuk bobot jarak. Model terbaik adalah GSTAR-SUR bobot seragam dengan nilai MAPE 6,65%. Kata Kunci : OLS, GLS, spacetime, korelasi eror
BILANGAN KROMATIK LOKASI PADA GRAF BAYANGAN DAN GRAF MIDDLE DARI GRAF BINTANG
Authors: Fransiskus Fran Novia Kristefany Kabang, Yundari,
Published: December 2020

Pewarnaan graf merupakan cara untuk memberi warna pada semua titik atau sisi pada suatu graf, dengan syarat kedua titik atau sisi yang bertetangga harus memiliki warna yang berbeda. Salah satu pengembangan teori yang berhubungan dengan pewarnaan graf adalah pewarnaan lokasi dan bilangan kromatik lokasi. Penelitian ini bertujuan untuk menentukan bilangan kromatik lokasi dari graf bintang , graf bayangan dari graf bintang , dan graf middle dari graf bintang  dengan  Bilangan kromatik lokasi dicari dengan menerapkan pewarnaan lokasi pada ,  dan  Selanjutnya, dicari kelas warna dan kode warna untuk semua titik di ,  dan . Jika setiap titik memiliki kode warna yang berbeda, maka graf tersebut dikatakan memenuhi pewarnaan lokasi. Bilangan kromatik lokasi untuk graf  dinotasikan dengan . Berdasarkan penelitian ini, diperoleh ,  , dan  . Kata kunci: Pewarnaan lokasi, kelas warna, kode warna.
PERKALIAN MATRIKS PADA GRAF RODA
Authors: Fransiskus Fran Novita Indah Saputri, Mariatul Kiftiah,
Published: December 2020

Perkalian matriks pada graf adalah perkalian antara matriks ketetanggaan dari dua graf yang memiliki jumlah simpul yang sama. Matriks ketetanggaan dari suatu graf  disimbolkan dengan . Suatu matriks disebut grafikal apabila matriks tersebut merupakan matriks simetris  dengan entri pada diagonalnya adalah nol. Pada penelitian ini dibahas kondisi-kondisi perkalian matriks terkait graf roda  yang grafikal. Berdasarkan hasil penelitian diperoleh  dan  tidak grafikal apabila , dengan  merupakan komplemen graf roda dan graf  merupakan subgraf roda yang diperoleh dengan cara menghapus sisi yang tidak bersisian dengan simpul pusat. Selanjutnya diperoleh  tidak grafikal untuk semua  dan  tidak grafikal apabila , dengan graf  merupakan subgraf roda yang diperoleh dengan cara menghapus sisi yang bersisian dengan simpul pusat.Kata Kunci: matriks ketetanggaan, subgraf roda, komplemen graf roda.
PENERAPAN STRUCTURAL EQUATION MODELING PARTIAL LEAST SQUARE PADA KEPUASAN MASYARAKAT TERHADAP PELAYANAN PUBLIK KEPOLISIAN KALIMANTAN BARAT
Authors: Hendra Perdana Titania Aurellia,
Published: December 2020

Kritik dan saran masyarakat dalam hal pelayanan, mendorong unit penyelenggara pelayanan publik dituntutuntuk memenuhi harapan masyarakat. Masyarakat menilai pelayanan publik yang dilakukan tidak sesuaiharapan, sehingga perlunya tindakan yang dapat memperbaiki hal tersebut, jika tidak ditangani dapatmenimbulkan ketidakpercayaan dari masyarakat. Salah satu unit penyelenggara pelayanan publik yaituKepolisian Daerah Kalimantan Barat yang melakukan survei kepuasan masyarakat terhadap pelayananpublik. Ada beberapa aspek yang menjadi variabel yaitu aspek penegakan hukum () , aspek pemeliharaankamtibmas 2 ( ) , aspek pelayanan publik 3 () , dan aspek kepercayaan masyarakat () . Metode yangdigunakan dalam penelitian ini adalah structural equation modeling partial least square (SEM-PLS), denganmenggunakan SEM-PLS dimungkinkan menggunakan ukuran sampel relatif kecil dan tidak membutuhkanasumsi normalitas. Penelitian ini menggunakan software smartPLS 3.0 dengan penerapan SEM-PLS untukmenganalisis hubungan variabel laten endogen dan variabel laten eksogen. Berdasarkan hasil penelitianyang telah dilakukan, didapatkan model persamaan yaitu , dengan variabel yangdiperoleh mempengaruhi aspek kepercayaan masyarakat () secara signifikan adalah variabel aspekpemeliharaan kamtibmas 2 () dan aspek pelayanan publik 3 ( ) . Nilai R untuk model persamaan strukturalyaitu sebesar 46,5%.Kata Kunci : Pelayanan Publik, Kepolisian, SEM-PLS
Efek Paparan Musik Klasik, Hard Rock dan Murottal Terhadap Pertumbuhan Vegetatif Tanaman Bayam Merah (Alternanthera amoena Voss)
Authors: Diah Wulandari Rousdy Resti Elvi Rusmiyanto PW
Published: December 2020

This research was conducted to determine the effect of classical music, hard rock and murottal against to vegetative growing of red spinach plants. The research used a completely randomizes design with 4 treatments and 5 replicates. ANOVA result showed that music exposure had significant effect on plant growth. Murottal exposure gave optimal result on plant height 35,70 cm, leaf area 43,40 cm2, root length  9,40 cm, stomata porous length  23,00 µm, wet weigh 15,59 g, and dry weight of the plant 11,25 g. Exposure to hard rock music gives optimal results on the amount of leaf chlorophyll is worth 34,52 spad unit.
Daya Hambat Ekstrak Etanol Batang Lakum (Cayratia trifolia (L.) Domin) Terhadap Pertumbuhan Isolat Phytophthora sp. Im5 secara In Vitro
Authors: Rikhsan Kurniatuhadi Fitrie Dwi Lestari Elvi Rusmiyanto PW
Published: December 2020

Stem rot disease is caused by one of Phytophthora pathogenic fungi that attacks several types of cultivated plants. The alternative control against Phytophthora attack can be done with the use of natural fungicides. One of the herbs that can be untilized is the ethanol extract of lakum stem (Cayratia trifolia (L.) Domin). The aim of this research is to know the effect of ethanol extract of lakum stem and its secondary metabolite in inhibiting the growth of isolate Phytophthora sp. Im5. The research was conducted for three months starting from October to December 2017. This research used solid dilution method and completely randomized design (CRD) wth 8 levels of treatments, i.e. positive control, negative control, ethanol extract concentration of 5, 10, 15, 20, 25 and 30 mg/ml. The test for secondary metabolite compounds was done by phytochemical screening method. The result showed that the concentration of 30 mg/ml has the biggest antifugal activity with the inhibition percentage of 34.98%. The activity of lakum stem ethanol extract against isolate Phytophthora sp. Im5 was included in moderate catagory. The results of phytochemical screening showed that the ethanol extract of lakum stem contained alkaloid, flavonoid and tannin compounds.
Karakteristik Genus Bakteri Pada Karkas Ayam Broiler Dari Swalayan di Kota Pontianak
Authors: Diah Wulandari Rousdy Prianti Rahmawati
Published: December 2020

The availability  of nutrients in chicken carcasses can cause chicken meat to be an excellent medium for the growth of pathogenic and non-pathogenic bacteria. This study aims to determine the characteristics of the bacterial genus in broiler chicken carcasses from supermarkets in Pontianak City. Based on the results of the study found 23 bacterial isolates in broiler chicken carcass samples from supermarkets in Pontianak City, which included members of the Aeromonas, Acetobacter, Alcaligenes, Amphibacillus, Bacillus, Brevibacterium, Camphylobacter, Carnobacterium, Erwinia,  Erysipelothrik, Eubacterium, Hafnia, Kluyvera, Klebsiella, Kurthia, Lactobacillus, Listeria, Proteus, Pseudomonas, Shigella, Sporolactobacillus, Serratia, and  Yersinia.
Multiplikasi Anggrek Hitam ( Coelogyne pandurata Lindl ) Pada Media Murashige Skoog (Ms) Dengan Penambahan Ekstrak Pisang Ambon dan Benzyl Amino Purin (BAP)
Authors: Elvi Rusmiyanto P.W Nurfadilah Mukarlina
Published: December 2020

Black orchids (Coelogyne pandurata Lindl.) are epiphytic and endemic in Borneo. Habitat damage and over exploitation by the society can cause black orchids to be threatened with extinction. For this reason, alternative ways to increase black orchids are needed through tissue culture techniques with the addition of ambon banana extract and Benzyl Amino Purine BAP. The aim of this study was to determine the effect of ambon banana extract and BAP on the multiplication of black orchids. This research was conducted for 3 months from January to March 2018 at Pontianak Aloe Vera Center (AVC) Tissue Culture Laboratory. This study uses a Completely Randomized Design (CRD) with two factors. The first factor was ambon banana extract (0%; 2,5%; 5%; 7,5% and 10%) and the second factors BAP (0 M; 10-7M; 10-6M; 5x10-6M) with 3 replications, each of which obtained 60 trial unit. The results showed that the ambon banana extract had a significant effect on the time of budding, number of buds and number of leaves. The concentration of ambon banana extract 2,5% resulted in the fastest budding time appearing on the 11,33th day, the number of buds was 8,33 tillers, and the number of leaves was 17,67 strands.
Kadar Hematokrit dan Hemoglobin Ikan Sapu-sapu (Pterygoplichthys pardalis) Terpapar Logam Berat Merkuri Klorida
Authors: Diah Wulandari Rousdy Siti Anikha Idzni Junardi
Published: December 2020

Mercury chloride (HgCl2) is one of the heavy metals that are harmful to the environment and can accumulate in aquatic organisms, such as Sucker Mouth Catfish, Pterygoplichtys pardalis. The purpose of this study was to analyze the damage of the hematocrite values and hemoglobin of P. pardalis exposed to mercury chloride. This study used a Randomized Block Design method with 54 male fish and six treatment groups, namely Control (0 ppm); P1 (0.01 ppm); P2 (0.02 ppm); P3 (0.04 ppm); P4 (0.08 ppm); P5 (0.16 ppm). Hematological tests showed a significant difference between treatment and control, while the different hemoglobin values with controls only at a concentration of 0.16 ppm. Mercury chloride causes damage to hematological disorders in P. pardalis
Aktivitas Hepatoprotektif Ekstrak Metanol Buah Lakum (Cayratia trifolia (L.) Domin) Terhadap Diameter Vena Sentralis, Lebar Sinusoid dan Berat Hepar Tikus Putih (Rattus novergicus L.) yang Diinduksi Parasetamol
Authors: Ari Hepi Yanti Rizki Perdana Putri Diah Wulandari Rousdy,
Published: December 2020

Secondary metabolites of lakum (Cayratia trifolia (L.) Domin) fruit have been evaluated in previous researches. The fruit contains flavonoids, terpenoids and phenols which have antioxidant properties. The aim of this research was to determine the hepatoprotective activity of methanolic extract of lakum fruit in Wistar rats’ liver induced by high doses of paracetamol. Ripe lakum fruits were macerated with methanol as the solvent. Thirty-five male Wistar rats (Rattus novergicus L.) were used in this research and devided into 7 groups (normal, negative, positive, solvent, 115 mg kg-1, 230 mg kg-1, and 345 mg kg-1 of lakum fruit methanolic extract). Results showed that the effect of 230 mg kg-1 of lakum fruit methanolic extract (central vein diameter: 40,20 ± 6,97 µm; sinusoid wide: 5,60 ± 0,94 µm; and liver weight: 6,33 ± 0,98 g) were similar to the effect of silymarin (central vein diameter: 42,99 ± 6,60 µm; sinusoid wide: 4,49 ± 0,44 µm; and liver weight: 6,58 ± 0,88 g) as the standard drug.
Komposisi Diatom (Bacillariophyceae) Perifitik pada Substrat Kaca di Sungai Kapuas Kecil Kota Pontianak Kalimantan Barat
Authors: Tri Rima Setyawati Rizki Aprilliani Rafdinal
Published: December 2020

Periphytic diatom (Bacillariophyceae) is diatom that lives attach on a substrate and it was dependent on the environmental conditions in an aquatic ecosystem. This study was aimed to determine the composition of periphytic diatom (Bacillariphyceae) on glass substrate and the condition of physical chemical water in Kapuas Kecil River. This study was conducted from September to December 2017. The sampling stations were chosen by purposive random sampling method and divided into four stations. At each station in the river were installed 5 baskets each with 5 glass slides. Samples were collected from three baskets with sampling intervals on day 2, 5, 10, 15, and 20. The result shows that the composition of periphytic diatoms (Bacillariophyceae) in Kapuas Kecil River consists of 29 genera from 2 orders (Pennales and Centrales) and 12 families. The most commonly genera found of periphytic diatom were Eunotia, Gomphonema, Frustulia and Nitzschia.
Identifikasi dan Deteksi Aktivitas Daya Hambat Bakteri Actinomycetes yang diisolasi dari Tanah Gambut di Desa Tajok Kayong Kalimantan Barat
Authors: Rikhsan Kurniatuhadi Sri Lestari, Mukarlina,
Published: December 2020

Actinomycetes bacteria can grow well in soil media with acidic pH conditions such as peat soil. This study aims to determine the genus of Actinomycetes bacteria from peat soil. Sampling was done in Tajok Kayong Village, Ketapang Regency. Isolation was carried out using Pour Plate Method using specific media, namely SCA (Strach Casein Agar) media, while the activity detection of Actinomycetes bacteria was carried out on Eschericia coli pathogenic bacteria and Staphylococcus aureus using the streak-cross Method. Identification and  characterization done it macroscopic, microscopic and biochemical. The results obtained 7 isolates of Actinomycetes bacteria from peat soil which is the genus Streptomyces.
Gangguan Monyet Ekor Panjang (Macaca fascicularis) Sekitar Pemukiman di Desa Tumuk Manggis dan Desa Tanjung Mekar, Kecamatan Sambas, Kalimantan Barat
Authors: Riyandi Ozy Oriza, Tri Rima Setyawati,
Published: December 2020

Long-tailed macaque (Macaca fascicularis) is one of the primates that can coexist with humans, but the use of land into human settlements can lead to reduced habitat for long-tailed monkeys and cause monkeys to disturb humans. This study was conducted to determine the disturbances of long-tailed macaque (Macaca fascicularis)in Tumuk Manggis and Tanjung Mekar Villages, Sambas District, West Borneo. This study used  in-depth interviews method to collection data of disturbance. Data collected were analyzed quantitative descriptively. The results showed that the disturbances carried out by long-tailed macaque when entering the residential area are to steal fruit or food at the people’s plantations or the backyard of people’s homes.The forest in the study area does not provide abundant feed and the land that is converted into a building allows long-tailed monkeys to enter residential areas.
Morfometrik Genus Terebellobranchia sp. (Kelas : Polychaeta, Famili: Terebellidae) di Daerah Intertidal Pulau Lemukutan, Kabupaten Bengkayang
Authors: Tri Rima Setyawati Heru Winarko Junardi,
Published: December 2020

Terebellobranchia sp. is a member of the Terebellidae family, which is known to have a high level of morphological variation. The aims of research was to know morphometric variations and the relationship of body size and uncini of Terebellobranchia sp. in Lemukutan Island. The measurements body and uncini were carried out on complete specimens with digital caliper, while uncini measuring under a microscope with eyepiece micrometer. Data analysis with t test in 64 individuals. The Terebellobranchia sp. found in station 2 had a significantly different size with Terebellobranchia sp. in other stations. The body length of Terebellobranchia sp. shows a strong correlation with the width, number of segments and body weight, meanwhile the width of the segment strongly correlated with size of uncini.
PENGARUH TUMBUHAN KABOMBA (Cabomba aquatica Aubl.) TERHADAP KADAR TSS, DO dan COD LIMBAH CAIR LABORATORIUM KIMIA FMIPA UNTAN
Authors: Afriza Hanafi , Mukarlina Mukarlina , Rousdy Diah Wulandari
Published: December 2020

Laboratory is one of the producers of waste water with a high content of hazardous materials before being discharged into water bodies. One effort to process laboratory waste with phytoremediation is to use Kabomba plants (Cabomba aquatica Aubl). This study aims to determine the ability of Kabomba (Cabomba aquatica Aubl.) To see the influence of plants on the levels of Total Suspended Solid (TSS), Dissolved Oksigen (DO) and Chemical Oxygen Demand (COD) from the Untreated Chemistry Laboratory Liquid Waste of FMIPA. This study used a Completely Randomized Design consisting of five treatments of waste concentration: control, 25, 50, 75, 100%. Based on the results of the study, Cabomba plants (Cabomba aquatica, Aubl.) able to reduce TSS values by 37.67% and increase DO values by a percentage of 77.5% on day 5 of treatment but not yet able to reduce COD values and increase pH values.
PERTUMBUHAN STEK PUCUK JABON PUTIH (Anthocephalus cadamba (Roxb.) Miq.) DENGAN PERENDAMAN MENGGUNAKAN EKSTRAK KECAMBAH KACANG HIJAU (Vigna radiata)
Authors: Huda Nurul , Mukarlina Mukarlina , Wardoyo Elvi Rusmiyanto Pancaning
Published: December 2020

White jabon (Anthocephalus cadamba (Roxb.) Miq) are plants with high economic value. It can be propagated vegetatively using its shoot cuttings. One of the way to enhance the growth of shoot cuttings by submersion in green bean sprout extract was expected to produce shoot cuttings with better growth. This study aimed to determine the submersion effect of white jabon (A. cadamba) shoot cuttings in green bean (Vigna sinensis) sprout extract. The Completely Randomized Design (CRD) consisted of 5 levels of treatment were used. The cuttings were submerged in extract concentrations of 0%, 25%, 50%, 75%, and 100%. The study parameters of number of roots and leaves, plant height, wet and dry weight were observed. The results showed that the concentration treatment with 75% green bean sprout extract produced 9,25±2,50 root strands, 5,75±0,50 leaves, plant height of 20,13±1,11 cm, wet weight of 12,39±3,62 g, and dry weight of 1,51±0,42 g.
ANGKA PALING MUNGKIN DAN DETEKSI COLIFORM PADA SAMPEL LALAPAN DAUN KEMANGI (Ocimum bacilicum) DI KOTA PONTIANAK
Authors: Sari Ita Purnama , Rahmawati Rahmawati , Kurniatuhadi Rikhsan
Published: December 2020

Ocimum basilicum is one type of vegetables that can be consumed without having to be processed. Food consumed must have high nutritional value, clean and free of microbes. Coliform is one of the bacteria that can cause disease in humans. This study aims to determine the value of MPN on samples Ocimum basilicum leaves from warung lamongan in Pontianak and determine the existence of coliform bacteria on Ocimum basilicum leaf samples from warung lamongan in Pontianak. Detection of coliform bacteria using the MPN method. Detection of E. coli was carried out using EMBA media. The results showed that all samples had interval values between 210 MPN/g to > 1100 MPN/g. It showed that all samples excced the threshold determined by BPOM (2016), which was the maximum limit of coliform bacteria contamination in ready-toconsume vegetables was < 3 APM/g. The results of the identification of the bacterial genus coliform grouphad the members of genera Escherichia and Citrobacter
INVENTARISASI JENIS ANGGREK (ORCHIDACEAE) TERESTRIAL DI TAMAN WISATA ALAM BUKIT KELAM KABUPATEN SINTANG
Authors: Lestari Lulu Dwi , Rafdinal Rafdinal , Mukarlina Mukarlina
Published: December 2020

Bukit Kelam Nature Tourism Park in Sintang District is a nature conservation area that has become the habitat for a wide range of endemic flora in West Kalimantan. This study aimed to identify terrrestrial orchids (Orchidaceae) species in Bukit Kelam Nature Tourism Park in Sintang District. This study was conducted from September to November 2017. The inventory of orchids specieswas done by the cruise method. The study obtained 12 terrestrial orchid species i.e Arundina graminifolia, Bromheadia finlaysoniana, Corybas pictus, Coelogyne kelamensis, Dendrobium lobii, Dendrobium olivaceum, Dipodium pictum, Liparis sp., Paphiopedilum bullenianum, Plocoglottis lowii, Spathoglottis kimbaliana,and Thrixspermumamplexicaule.
INVENTARISASI JAMUR MAKROSKOPIS PADA HABITAT RAWA GAMBUT Di KAWASAN CABANG PANTI TAMAN NASIONAL GUNUNG PALUNG KALIMANTAN BARAT
Authors: Prayogo Ogi , Rahmawati Rahmawati , Mukarlina Mukarlina
Published: December 2020

This inventory needs to be carried out to determine the types of macroscopic fungi that are found in the Peat Swamp Habitat of the Cabang Panti Gunung Palung National Park. Taking mushroom samples using the Purposive sampling method and roaming method by tracing the path. Identification is carried out based on macroscopic characters. Based on the results of the inventory at the Cabang Panti of Gunung Palung National Park, there were 3 macroscopic fungi from the Order of Agaricales, Auriculariales and Polyporales which which has three species including Auricularia auricula, auricularia delicata, Lichenomphalia sp. and Microporus xanthopus.
KEPADATAN DAN POLA PENYEBARAN Ficus spp. DI STASIUN PENELITIAN CABANG PANTI TAMAN NASIONAL GUNUNG PALUNG KALIMANTAN BARAT
Authors: Hadi Sumi , Rafdinal Rafdinal , Linda Riza
Published: December 2020

Ficus is key species that commonly lives in tropical region because of its ability to bear fruit year around, thus so many kind of Ficus that become source of food and habitat to animals. The aim of the research to determine the density and distribution pattern of Ficus spp. at Research Station of Gunung Palung National Park in May until June 2018. The observation of Ficus spp. is done by random sampling method on five different locations, there are lowland granite, warmth, sands stone, freshwater swamp and alluvial land. The result showed that there are 4 species of Ficus with density ranges 16-60 individuals/ha and the distributions patterns are uniform and grouped.
KEANEKARAGAMAN SERANGGA DI KAWASAN IUPHHK-HTI PT. MUARA SUNGAI LANDAK KABUPATEN MEMPAWAH KALIMANTAN BARAT
Authors: Ricco Fredicus , Kustiati Kustiati , Riyandi Riyandi
Published: December 2020

Insect is a dominant group of animals on earth with the most common number of species and individuals compared to other animal groups. Research about insect diversity in the forest area of IUPHHK-HTI PT. Muara Sungai Landak in swamp peat forest should be done to know its role. The research was aimed to determine the species of insects and to know the effect of environmental factors to insects in the area of PT. Muara Sungai Landak. Insects collected from five different age groups of plants with trapping methods using pit fall trap, yellow pan trap, and light trap. Insects found in the area of PT. Muara Sungai Landak counted as many as to 282 individuals consisting of 18 species, 15 families, and 6 orders. The most widely found number of individuals was the species of Condylostylus longicornis. The highest diversity value was found in the two-year plant age group with a diversity value of H' = 1,69654, while the lowest diversity value was found in the three-year plant age group with the value H ' = 1,20751
PEMANFAATAN TUMBUHAN OBAT OLEH MASYARAKAT SUKU MELAYU DI DESA SUNGAI DAUN KECAMATAN SELAKAU KABUPATEN SAMBAS
Authors: Meisia Lili , Rafdinal Rafdinal , Ifadatin Siti
Published: December 2020

The Malay Tribe in West Kalimantan are the largest after Dayak Tribe. The most people in Sungai Daun Village are Malay Tribe who still use plants as medicine. This research was conducted with the aim to know the types of medicinal plants, parts of plants used as medicines and methods of processing and the use of plants as medicine. The research was conducted in Sungai Daun Village, Selakau Sub-District, Sambas District. The research method using snowball sampling with 12 respondents consist of village heads, herbalist, shaman giving birth and other community members who have knowledge about medicinal plants. The results showed that there were 74 species of plants included in the 43 families used as medicine. The highest percentage of families is Asteraceae (6,8%), Euphorbiaceae (6,8%) andPiperaceae (6,8%). Part of a widely used plant as medicine is the leaves (48,8%), while the way of processing and the use of medicinal plants is in boiled (55,3%) and drunk (48,3%).
KARAKTERISASI DAN IDENTIFIKASI GENUS BAKTERI ENDOFIT DARI DAUN DAN BATANG JERUK SIAM (Citrus nobilis var. microcarpa) SEHAT DI DESA ANJUNGAN KALIMANTAN BARAT
Authors: Silalahi Lusiana Fitriani , Mukarlina Mukarlina , Rahmawati Rahmawati
Published: December 2020

Endophytic bacteria that live in the tissues of plant organs act as biological control agents and growth accelerator such as for plants Siam Orange (Citrus nobilis var. microcarpa) which is included in main commodity horticultural crops in West Kalimantan. This study was aimed to know the genera of endophytic bacteria from healthy Siam Orange stems and leaves. The study was conducted through the steps of endophyte bacteria isolation, and identification. Systematic sampling method was used and data collected were descriptively analyzed. The study results obtained nine isolates from leaves of Bacillus, Micrococcus, Pseudomonas, Erwinia, Microbacterium, Cellulomonas and one unidentified isolate, one isolate from stems of Micrococcus.
PENGARUH KOTORAN AYAM DAN MIKORIZA Glomus aggregatum TERHADAP PERTUMBUHAN KEDELAI (Glycine max) PADA TANAH GAMBUT
Authors: Iqbal Muhamad , Linda Riza , Mukarlina Mukarlina
Published: December 2020

Peat soil in West Kalimantan has been contained low of nutrient level so it affects the growth of soybeans. One effort to increase the availability of nutrients in peat soils is by using mycorrhiza and chicken manure fertilizer. This research aims to determine the growth of soybeans by administering chicken manure and mycorrhiza on peat soils. The research was conducted from January to April 2019. The research design used was a Completely Randomized Design Factorial consisting of 2 factors with 4 replications. The first factor is mycorrhiza fungi: M1 (0 gr/polybag), M2 (5 gr/polybag), M3 (10 gr/polybag), M4 (15 gr/polybag) and the second factor is chicken manure fertilizer: P1 (0 tons/ha) , P2 (5 tons/ha), P3 (10 tons/ha), P4 (15 tons/ha). The results showed that the single chicken manure application significantly affected all observed parameters with 15 tons/ha chicken manure fertilizer. Mycorrhiza fungi just a significantly effect on fresh weight and dry weight. Also, the combination of mycorrhiza fungi and chicken manure fertilizer just a significantly affected wet weight and dry weight with combination 5 g mycorrhiza and 5 tons/ha of chicken manure fertilizer.
EFEKTIVITAS ANTIMIKROBA BUAH LAKUM (Cayratia trifolia [L.] DOMIN) TERHADAP PERTUMBUHAN BAKTERI Streptococcus sp. (L.10.3)
Authors: Yuniar Helenda Ferni Asri , Rahmawati Rahmawati , Rousdy Diah Wulandari
Published: December 2020

Streptococcus sp. (L.10.3) is one of the bacteria that can cause dental plaque. This study was aimed to determine the antimicrobial activity of the fraction of methanol fraction of fruit against Streptococcus sp. (L.10.3). This study used a Completely Randomized Design (CRD), 3 levels of concentrations of fraction methanol fraction 0.3 g/mL, 0.6 g/mL and 0.9 g/mL and 2 positive control treatments of amoxicillin and negative control using distilled water with three times repeated. Testing the antibacterial activity using the Kirby-Bauer method using disc paper. The results of the study showed the average diameter of inhibition zones of Streptococcus sp. (L.10.3) in the 24th hour incubation ranged from 7.70-10.72 mm and in the 48th hour incubation ranged from 8.70-10.37 mm. A concentration of 0.9 g/mL is an effective concentration with a moderate inhibition response category. Giving fraction of methanol fraction of fruit at the lowest concentration of 0.3 g/mL is able to provide a moderate inhibition response with the bacteriocidal antibacterial category.
Peculiarities of the “professional income tax” tax regime
Authors: Abakarova R. Sh.
Published: December 2020

In the context of the widespread introduction of a tax on the self-employed in Russia, there is a need for a conceptual understanding of its role in the economic activity of citizens and the development of regions. In this regard, the article considers the results of its introduction in 2019 and the prospects for further development up to 2029. The article reviews the main aspects of the functioning of the new tax regime in relation to the professional income of the self-employed population in the Russian Federation, which were introduced by Federal Law No. 422-FZ dated on November 27, 2018 in a number of regions of the country. The paper explains the main characteristics of the tax and the procedure for its application. The study summarizes preliminary results of the functioning of the new special tax regime under the experimental conditions.
Current state of digital transformation of russian banks
Authors: Matveevskii S. S.
Published: December 2020

The paper presents current state of digital transformation of Russian banks. The author defines the digitalization of banks as the introduction of FinTech technologies, close cooperation with Fintech-companies. Digitalization has both positive and negative consequences: cyber risks are growing, financial stability is decreasing. The analysis allowed the author to draw conclusions that the digital transformation of Russian banks is characterized by: the complex implementation of BCBS scenarios and the interaction between banks and Fintechcompanies, the emergence of neo-banks; increased competition in the banking sector; innovative opportunities for the production and sale of banking services and products, the emergence of new risks; accumulation and use of large amounts of data; the need to significantly change the information systems of banks (growth in demand for the services of IT companies); the emergence of ecosystems in which non-banking organizations are actively involved; large costs of Russian banks, which, as a rule, leads to an improvement in their financial results (as a result, medium and small banks begin to lose in the market).
Digital adaptation issues for different demographics in Russian Moscow region
Authors: Akhmaeva L. G. , Dolgopolov D. V. , Eremeeva A. I.
Published: December 2020

The article aims to analyze the adaptation specifics of four generations to digital technologies in Russian Moscow region. The research theoretical basis consists of the basic socio-demographic generations description within the William Strauss and Neil Hove generations theory. Using methods of sociological research (polls and in-depth interviews), the article analyzes the Strauss-Hove generational theory’s actual elements in relation to the socio-demographic landscape of modern Russian society. The article considers the interaction specifics with the digital environment and gadgets for various demographic sections, as well as their involvement in modern global trends regarding Internet addiction and online positioning. The article concludes that the development of various communication channels depending on demographic targeting is required.
Formation of psychological security of the educational environment (on the example of the school in the Altai Republic)
Authors: Lizunova L. Yu. , Taskina I. A.
Published: December 2020

The article considers one of the topical and important issues of modern Russian education – formation of the psychological safety of the educational environment at school. The paper gives the modern interpretations of the definitions of «psychological safety» and «educational environment». The authors note that it is specially organized work that can promote constructive interaction between all subjects of the educational process, improvement of the psychological climate in the school environment, successful formation of psychological safety at school with a large or small number of pupils. In particular, the article presents the results of the study of the educational environment of one of the rural schools of the Altai Republic and also reviews the compiled and tested model of psychological and pedagogical conditions for formation of psychological safety, the directions of implementation of the developed model. In addition, the paper analyses the results of the effectiveness of this model.
Features of development of organizations in the context of digital transformation
Authors: Vertakova Yu. V. , Kryzhanovskaya O. A.
Published: December 2020

The article characterizes the main trends in the development of organizations in modern economic conditions: the spread of coronavirus infection, a new industrial revolution, a shift in political courses, an increase in economic nationalism, a desire to maintain sustainability, digital transformation. To achieve the goal - to identify the features of the development of organizations in the context of digital transformation - the authors investigated the status of digital transformation in the Russian Federation by industry, the priorities of the digital transformation directions of Russian companies, the success factors of digital transformation. The paper analyses the use and implementation of modern technological solutions in the activities of enterprises in the context of digital transformation. In conclusion, the authors emphasize the role of the head of an organization that implements digital technologies to achieve strategic goals in the context of the transformation of the economic space.
Influence of external impacts on the dynamics of the industrial structure of gross regional product
Authors: Gaynanov D. A. , Ataeva A. G.
Published: December 2020

The article assesses the impact of the sectoral structure of the gross regional product of the Russian regions on the sustainability of regional economies to external crises (using the oil crisis and the spread of coronavirus infection as an example). Firstly, based on a comparison of the trends in oil prices and the gross regional product of Russian regions over the past 20 years, the paper determines that the oil crisis will affect the economic development of all regions, regardless of the specialization of the territory. Secondly, the study ascertains that regions, which have a high share of the raw materials industry and a low share of trade, transportation, and the financial sector, are more resistant to the consequences of the spread of coronavirus infection. Using the example of the Republic of Bashkortostan, the authors identify threats to the modern structure of the economy and the social sphere in terms of sustainability to external crises, and propose the directions of structural and spatial restructuring of the region’s economy to increase the stability of the regional economy.
Sarcoma de Kaposi de pênis em idoso imunossuprimido / Kaposi’s sarcoma of penis in immunosuppressed elderly
Authors: Orellana Fernanda Monteiro , Leitão Luiz Felipe De Mello Pereira , Ziroldo Alan Rechamberg , Fernandes Roni De Carvalho , Toledo Luis Gustavo Morato Morato de , Mattos Tatiana Veri de Arruda
Published: December 2020

Introdução: O Sarcoma de Kaposi é uma neoplasia rara e sua apresentação isolada no pênis representa 2-3% dos casos. Quase a metade dos pacientes é assintomática e o tratamento mais utilizado é a exérese cirúrgica. Objetivo: Apresentação rara de um sarcoma de kaposi isolado no pênis. Relato do Caso: Paciente de 74 anos em tratamento de Linfoma não Hodgkin e HIV positivo com diagnóstico de sarcoma de kaposi isolado no pênis. Conclusão: O sarcoma de kaposi confinado ao pênis deve ser considerado como diagnóstico diferencial das lesões genitais, principalmente em pacientes com HIV positivo e o tratamento deve ser individualizado. Palavras chave: Sarcoma de Kaposi, Pênis, Câncer de pênis, Imunossupressão, HIV, Linfoma não-Hodgkin ABSTRACTIntroduction: Kaposi’s sarcoma is a rare neoplasm and its isolated presentation in the penis represents 2-3% of cases. Almost half of the patients are asymptomatic and the most used treatment is surgical excision. Objective: Rare presentation of isolated kaposi sarcoma on the penis. Case Report: A 74-year-old patient undergoing treatment for non-Hodgkin’s lymphoma and HIV positive diagnosed with isolated kaposi sarcoma on the penis. Conclusion: Kaposi’s sarcoma confined to the penis should be considered as a differential diagnosis of genital lesions, especially in patients with HIV positive and treatment should be individualized. Keywords: Kaposi´s sarcoma, Penis, Penile cancer, Immunosuppression, HIV, Non-Hodgkin’s lymphoma
Reversible Multilayered Vesicle-like Structures with Fluid Hydrophobic and Interpolyelectrolyte Layers
Authors: Murmiliuk Anastasiia , Filippov Sergey K. , Rud Oleg , Košovan Peter , Tošner Zdeněk , Radulescu Aurel , Skandalis Athanasios , Pispas Stergios , Šlouf Miroslav , Štěpánek Miroslav
Published: December 2020

Hydrophobic blocks of amphiphilic block copolymers usually form glassy micellar cores with a rigid structure that limits their applications as nanocapsules for targeted delivery. We report here on the core/shell micelles with a soft core formed

by self-assembly of block copolymer composed of hydrophobic and polycation blocks, poly(lauryl acrylate)-block-poly(trimethylammonioethyl acrylate) (PLA-QPDMAEA), in aqueous solution. Using scattering, microscopy and spectroscopy techniques, we showed that such copolymer forms spherical and cylindrical core/shell micelles with a fluid-like PLA core and a positively charged shell, and that these micelles can encapsulate and release hydrophobic solutes. Moreover, we discovered novel vesicle-

like multicompartment structures containing both soft hydrophobic and interpolyelectrolyte (IPEC) layers formed by co-assembly of PLA-QPDMAEA core/shell micelles with another diblock copolymer composed of a hydrophilic block and polyanion block poly(ethylene oxide)-block-poly(methacrylic acid) (PEO-PMAA). These complex structures were characterized by small-angle neutron scattering, supported by self-consistent field modeling that confirmed the formation of vesicle-like structures with dense PEO core, IPEC inner layer, PLA soft layer, IPEC outer layer and loose PEO corona. Due to their unique tunable properties, such multicompartment micelles with fluid and IPEC layers and hydrophilic corona can be used as nanocapsules with controllable thickness of each layer, charge and stability.
Detection of a SARS-CoV-2 Sequence with Genosensors Using Data Analysis Based on Information Visualization and Machine Learning Techniques
Authors: Soares Juliana Coatrini , Soares Andrey Coatrini , Rodrigues Valquiria Cruz , Oiticica Pedro Ramon Almeida , Raymundo-Pereira Paulo Augusto , Bott-Neto José L. , Buscaglia Lorenzo Antonio , Castro Lucas Daniel Chiba , Ribas Lucas Correia , Scabini Leonardo , Brazaca Laís Canniatti , Correa Daniel Souza , Mattoso Luiz Henrique Capparelli , de Oliveira Maria Cristina Ferreira , Carvalho André Ponce Leon Ferreira , Carrilho Emanuel , Bruno Odemir Matinez , Melendez Matias , N. Oliveira Jr Osvaldo
Published: December 2020

We report on genosensors to detect an ssDNA sequence from the SARS-CoV-2 genome, which mimics the GU280 gp10 gene (coding the viral nucleocapsid phosphoprotein), using four distinct principles of detection and treating the data with information visualization and machine learning techniques. Genosensors were fabricated on either gold (Au) interdigitated electrodes for electrical and electrochemical measurements or on Au nanoparticles on a glass slide for optical measurements. They contained a matrix of 11-mercaptoundecanoic acid (11-MUA) self-assembled monolayer (SAM) onto which a layer of capture probe (cpDNA) sequence was immobilized. Detection was performed using electrical and electrochemical impedance spectroscopies and localized surface plasmon resonance (LSPR). The highest sensitivity was reached with impedance spectroscopy, including using a low-cost (US$ 100) homemade impedance analyzer. Complementary ssDNA sequences were detected with a detection limit of 0.5 aM (0.3 copy/μL). This performance may be attributed to the high sensitivity of the electrical impedance technique combined with an appropriate arrangement of the sequences on the electrodes and hybridization between the complementary sequences, as inferred from polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS). The selectivity of the genosensor was confirmed by plotting the impedance spectroscopy data with a multidimensional projection technique (Interactive Document Mapping, IDMAP), where a clear separation was observed among the samples of the complementary DNA sequence at various concentrations and from buffer samples containing a non-complementary sequence and other DNA biomarkers. The diagnosis of SARS-CoV-2 mimicking sequences was also achieved with machine learning techniques applied to scanning electron microscope images taken from genosensors exposed to distinct concentrations of the complementary ssDNA sequences. In summary, the genosensors proposed here are promising for detecting SARS-CoV-2 genetic material (RNA) in biological fluids in point-of-care settings.
Arylphosphonate-Tethered Porphyrins: Fluorescence Silencing Speaks a Metal Language in Living Enterocyte
Authors: Keil Claudia , Klein Julia , Schmitt Franz-Josef , Zorlu Yunus , Haase Hajo , Yücesan Gündoğ
Published: December 2020

We report the application of a highly versatile and engineerable novel sensor platform to monitor biologically significant and toxic metal ions in live human Caco-2 enterocytes. The extended conjugation between the fluorescent porphyrin core and metal ions via aromatic phenylphosphonic acid tethers generates a unique turn off and turn on fluorescence and, in addition, shifts in absorption and emission spectra for zinc, cobalt, cadmium and mercury. The reported fluorescent probes p-H8TPPA and m-H8TPPA can monitor a wide range of metal ion concentrations via fluorescence titration and also via fluorescence decay curves. Cu and Zn-induced turn off fluorescence can be differentially reversed by the addition of common chelators. Both p-H8TPPA and m-H8TPPA readily pass the mammalian cellular membrane due to their amphipathic character as confirmed by confocal microscopic imaging of living enterocytes.