bluuebunny/crossref_metadata_2025 huggingface dataset:
OPTIMALISASI PENDISTRIBUSIAN BERAS DI PENGGILINGAN PADI KARDI JAYA UTAMA TOLAI DENGAN MENGGUNAKAN METODE GOAL PROGRAMMING
Authors: Fatmayoni Raisan , Jaya Agus Indra , Resnawati Resnawati
Published: January 2020

OPTIMALISASI PENDISTRIBUSIAN BERAS DI PENGGILINGAN PADI KARDI JAYA UTAMA TOLAI DENGAN MENGGUNAKAN METODE GOAL PROGRAMMING
PENENTUAN RUTE PENDISTRIBUSIAN TABUNG GAS LPG 3 KG MENGGUNAKAN METODE CLARK E AND WRIGHT (STUDI KASUS UD. SYAMSUDIN OEMAR)
Authors: Rezki Pipin , Sahari Agusman , Resnawati Resnawati
Published: January 2020

PENENTUAN RUTE PENDISTRIBUSIAN TABUNG GAS LPG 3 KG MENGGUNAKAN METODE CLARK E AND WRIGHT (STUDI KASUS UD. SYAMSUDIN OEMAR)
MISCONCEPTIONS IN SOLVING INDEFINITE INTEGRALS FOR NONELEMENTARY FUNCTIONS USING THE TAYLOR SERIES
Authors: Lutfi Mohammad
Published: January 2020

MISCONCEPTIONS IN SOLVING INDEFINITE INTEGRALS FOR NONELEMENTARY FUNCTIONS USING THE TAYLOR SERIES
MENGKAJI PERTUMBUHAN BIOMASSA DAN BAKTERI PADA PROSES PEMBUATAN BIOGAS DARI LIMBAH CAIR TEMPE DENGAN METODE RUNGE KUTTA FEHLBERG
Authors: Maasawet R R , Jaya Agus Indra , Ratianingsih Rina
Published: January 2020

MENGKAJI PERTUMBUHAN BIOMASSA DAN BAKTERI PADA PROSES PEMBUATAN BIOGAS DARI LIMBAH CAIR TEMPE DENGAN METODE RUNGE KUTTA FEHLBERG
KELAS GRAF RAMSEY MINIMAL R(〖3K〗_2,F_5 ) YANG TERBATAS PADA ORDE DAN DIAMETER
Authors: Saleh K , Sudarsana I W , Resnawati Resnawati
Published: January 2020

KELAS GRAF RAMSEY MINIMAL  YANG TERBATAS PADA ORDE DAN DIAMETER
ANALISIS DAN OPTIMALISASI PERSEDIAAN BAHAN BAKAR PEMBANGKIT LISTRIK PADA PT. KUTILANG PAKSI MAS DENGAN METODE ECONOMIC ORDER QUAANTITY (EOQ)
Authors: Fadly M , Jaya Agus Indra , Sahari Agusman
Published: January 2020

ANALISIS DAN OPTIMALISASI PERSEDIAAN BAHAN BAKAR PEMBANGKIT LISTRIK PADA PT. KUTILANG PAKSI MAS DENGAN METODE ECONOMIC ORDER QUAANTITY (EOQ)
RANCANG BANGUN APLIKASI ANTI MALING PADA KENDARAAN BERMOTOR RODA DUA MENGGUNAKAN GPS (Global Positioning System) BERBASIS INTERNET
Authors: Raiza Raiza , Sudarsana I Wayan , Resnawati Resnawati
Published: January 2020

RANCANG BANGUN APLIKASI ANTI MALING PADA  KENDARAAN BERMOTOR RODA DUA MENGGUNAKAN GPS (Global Positioning System) BERBASIS INTERNET
ANALISA KESTABILAN MODEL SEIRS PENYAKIT SCABIES PADA POPULASI HEWAN DAN MODEL SEIS PADA POPULASI MANUSIA
Authors: Nyamun Suwito S , Ratianingsih Rina , Jaya Agus Indra
Published: January 2020

ANALISA KESTABILAN MODEL SEIRS PENYAKIT SCABIES PADA POPULASI HEWAN DAN MODEL SEIS PADA POPULASI MANUSIA
PREDIKSI KUALITAS AIR BERSIH PDAM KOTA PALU MENGGUNAKAN METODE BACKPROPAGATION
Authors: Mustakim J R , Ratianingsih R , Lusiyanti D
Published: January 2020

PREDIKSI KUALITAS AIR BERSIH PDAM KOTA PALU MENGGUNAKANMETODE BACKPROPAGATION
ANALISIS PENUGASAN MEKANIK PADA DEALER MOTOR YAMAHA MENGGUNAKAN METODE HUNGANRIAN
Authors: Afizah N , Musdalifah S , Resnawati R
Published: January 2020

ANALISIS PENUGASAN MEKANIK PADA DEALER MOTOR YAMAHAMENGGUNAKAN METODE HUNGANRIAN
ANALISIS KORESPONDENSI UNTUK MELIHAT POLA HUBUNGAN FAKTOR – FAKTOR ALASAN MAHASISWA TERHADAP PEMILIHAN JURUSAN MATEMATIKA DI FMIPA UNTAD
Authors: Rahmayani R , Rais Rais , Utami I T
Published: January 2020

ANALISIS KORESPONDENSI UNTUK MELIHAT POLA HUBUNGANFAKTOR – FAKTOR ALASAN MAHASISWA TERHADAPPEMILIHAN JURUSAN MATEMATIKA DI FMIPA UNTAD
MEMBANGUN MODEL PENYEBARAN HAMA DAN PENYAKIT PADA BAWANG MERAH PALU (Allium ascalonicum L.)
Authors: Mutmainnah M , Ratianingsih R , Nacong N
Published: January 2020

MEMBANGUN MODEL PENYEBARAN HAMA DAN PENYAKIT PADA  BAWANG MERAH PALU (Allium ascalonicum L.)
ANALISIS KESTABILAN MODEL MATEMATIKA PENYEBARAN PENYAKIT SIFILIS PADA MANUSIA
Authors: Muliyani N , Ratianingsih R , Nacong N
Published: January 2020

Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum spiroset subspecies pallidum. Transmitted through sexual contact, the infection can also be transfered from mother to fetus during pregnancy or at birth, that causes congenital syphilis. The mathematical model that represents the spread of the disease was adapted from a mathematical model SEI. The model classifiles human population into vulnerable suscepted  women and men, Exposed , and Infected , sub-populations of women vulnerable , sub-populations women incubation period , sub-populations of women infected  and a sub-population of men vulnerable , sub-populations incubation period male , sub-populations laki- infected men  considered in the model. The derived models gives two critical point that is free disease and endemic critical point. The existence of a critical point  must satisfye  and . The model was  analyzed by the linierized method and Routh-Hurwitz criteria to determine the system stability. The simulation shows that, in case of free-disease  syphilis spread condition, the population of women and men has increased. The growth of women population is higher than the men population. it means that the spread of syphilis occurs faster in the men sub-population. In endemic condition of syphilis disease spread, the women population will growth rapidly than the men population.
PELABELAN L(d,2,1) PADA OPERASI KOMPLEMEN DAN KORONA GRAF LINTASAN DAN SIKLUS
Authors: Natalia R , Sudarsana I W , Musdalifah S
Published: January 2020

Let  be a graph with  vertices and  edges. An  labeling of graph  is a function of    such that the following condition  for  where denoted the on distance of two vertices  and   and  for . A number  is called the span of  labeling, if  is the largest label vertex of  labeling. Notation   states that the smallest span of all labeling on a graph . An injective labeling is called  and a minimum span of all labeling  denoted by . A graph  which has  labeling is called the  graph. In this paper we study of such labeling by considering complement of path and cycle. The result showed that complement of path  has , for  and , for  and complement of the cycle  has for  and , for  and  corona of two paths  has . Therefor, the complement of paths  the complement of cycle , and  corona of two path  are  graph.
OPTIMALISASI BIAYA TRANSPORTASI PENDISTRIBUSIAN KERAMIK MENGGUNAKAN MODEL TRANSPORTASI METODE MODIFIED DISTRIBUSITION (STUDI KASUS : PT. INDAH BANGUNAN)
Authors: Ayulinansyah S , Jaya A I , Sahari A
Published: January 2020

This study was conducted to obtain optimal costs of transportation in the distribution of Ceramics at PT. Indah Bangunan Palu. This research is carried out by several steps such as: making the model transportation of obtained the data, determining the initial solution by the method of Least cost, and finding the optimal solution with Modified Distribution (MODI) method. The research results showed that an initial solution is 𝑅𝑝. 53.919.000 and the optimal solution is 𝑅𝑝. 53.756.000. On the other hand the transportation cost from the company before optimization is 𝑅𝑝. 62.126.000. This indicates that PT. Indah Bangunan Palu can optimize the costs of transport for the distribution of ceramics on September 2016 with a cost savings of 𝑅𝑝. 8.370.000 or 13%
OPTIMALISASI KEBUTUHAN GIZI PADA MENU MAKANAN IBU HAMIL ANEMIA MENGGUNAKAN METODE BRACH AND BOUND (Studi Kasus di Kecamatan Ampana Tete Kabupaten Tojo Una-Una Provinsi Sulawesi Tengah)
Authors: Zulhajrah Zulhajrah , Jaya A I , Sahari A
Published: January 2020

Anemia in pregnancy is a common problem because it reflects the value of socio-economic welfare of society and has had enormous influence on the quality of human resources. Settings menu maternal anemia is an effort to maintain the condition of pregnant women with anemia. This study aims to obtain optimal value nutritional needs of pregnant women anemia in Ampana Tete District of Tojo Una-Una Central Sulawesi province by using the branch and bound method. The parameters used in this study are the type of staple foods (𝑥1 ), the type of vegetable(𝑥2 ), types of fruit(𝑥3 ), types of side dishes(𝑥4 ), green beans(𝑥5 ), and milk(𝑥6 ), Results show 1st, 2 nd, and 3 rd of 36 combinations known to the most optimal combination for all trimester is a combination of 14. For the first trimester are as many as rice, 348 g spinach were 116 g,chicken eggs as 482 gmuch,and green beans 138 g, at a cost of 𝑅𝑝. 15680,00, 2nd trimester is as much as rice, 381 g spinach amount to 167 g, chicken 690 g eggs, and green beans as much as 154 g and of milk 3 g at a cost of 𝑅𝑝 20498,50, and the third trimester is rice, 345 g spinach, 127 g, chicken 914 g eggs, and green beans 176 g, at a cost of 𝑅𝑝. 24086.00 per day. The analysis has not been as expected because one of the drawbacks is the use of linear programming linearity as sumption that sometimes does not correspond to reality.
KONDISI MINIMAL IDEAL KIRI TERURUT PADA SEMIGRUP TERNER TERURUT PARSIAL
Authors: Andri Andri , Nacong Nasria
Published: January 2020

Ternary semigroups 𝑇 is obtained from a nonempty set 𝑇 that given a mapping with a multiplication operation ternary that satisfied closed and associative properties. So, generally a ternary semigroup is an abstraction of a semigroup structure. Meanwhile, partially ordered ternary semigroups 𝑇 is an ordered semigroup 𝑇 that satisfies the properties for each 𝑎, 𝑏, 𝑐, 𝑑 ∈ 𝑇 if 𝑎 ≤ 𝑏 then (𝑎𝑐𝑑) ≤ (𝑏𝑐𝑑) and (𝑑𝑐𝑎) ≤ (𝑑𝑐𝑏). In a ternary semigroups there is also concept of left ideals. This study was conducted to examine the characteristics of ordered left ideals on partially ordered ternary semigroups. Furthermore, it will be discussed about the characteristics of minimal ordered left ideals on partially ordered semigroups.Keywords : Ternary Semigroups, Ordered Ternary Semigroups, Left Ideals, Ordered Left Ideals, Minimal of Ordered Left Ideals.
OPTIMALISASI PERSEDIAAN BAHAN BAKAR MINYAK INDUSTRI (SOLAR) PADA PT. PRIMA SENTOSA ALAM LESTARI MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ)
Authors: Santi Santi , Jaya A I , Sahari A
Published: January 2020

PT. Prima Alam Lestari Sentosa is a company engaged in six areas such as transporter fuel, industrial fuel agents pertamina, SPPBE, general construction services, mining contractor, and the procurement of goods and services. In carrying out its production activity is associated with supplies of fuel oil. Where inventory is one of management activities related to storage costs and reservations so that the necessary optimization of inventory. In this study the authors using Economic Order Quantity to optimize the inventory. This study aims is to determine the inventory optimization of fuel oil at PT. Prima Alam Lestari Sentosa and compared it with the fuel inventory optimization EOQ method. . PT Prima Alam Lestari Sentosa set the amount every one reservations is 14212.50 liters with the number of bookings 317 timeseach year and the total cost of supply is 𝑅𝑝. 710.304.976,352,- while when using the EOQ method, the ordering amount is 20.225 liters with the number of bookings are as 223 times each year and the total inventory cost 𝑅𝑝. 668.280.488,26,-. Thus, in the year of 2016, it is about that the company's policy when using the EOQ method is equal to 𝑅𝑝. 24.024.488,092.Keywords : EOQ Method, Inventory, Optimization.
Identifikasi Benda-Benda Megalitik Terpendam Menggunakan Metode Geolistrik Hambatan Jenis di Situs Tadulako Kecamatan Lore Tengah Kabupaten Poso
Authors: Lama Yuyu Lamrens , Sandra Sandra , Maskur Maskur
Published: January 2020

Telah dilakukan penelitian di Desa Doda Kecamatan Lore Tengah Kabupaten Poso, dengan judul Identifikasi Benda-Benda Megalitik Terpendam Menggunakan Metode Geolistrik Hambatan Jenis Di Situs Tadulako. Tujuan dari penelitian ini untuk melihat sebaran bendabenda megalit yang masih terpendam dibawah permukaan. Penelitian ini menggunakan metode geolistrik hambatan jenis dengan Konfigurasi Wenner. Pengambilan data dilakukan sebanyak 4 lintasan yang tersebar di daerah penelitian. Pengolahan data menggunakan perangkat lunak Res2dinv untuk memperoleh nilai hambatan jenis yang diduga sebagai megalit terpendam. Keberadaan benda megalit diduga masih terdapat dibawah permukaan dengan indikasi nilai range hambatan jenis diatas 3.000 ohm meter. Sebaran megalit yang terpendam diduga tersebar ke arah barat lokasi penelitian pada kedalaman rata-rata 1–2 m.

Kata Kunci : Geolistrik, Hambatan Jenis, Megalit.
KAJIAN EKSTRAKSI GELATIN DARI TULANG IKAN MUJAIR (Oreochromis mossambicus)
Authors: Darwin Darwin , Ridhay Ahmad , Hardi Jaya
Published: January 2020

Penelitian ini bertujuan untuk mengetahui pengaruh waktu perendaman dan rasio antara berat tulang ikan mujair terhadap volume asam sitrat 9% (b/v) dalam menghasilkan gelatin dengan rendemen tertinggi dan mutu terbaik. Penelitian ini dilakukan menggunakan rancangan acak lengkap (RAL) dengan 5 taraf waktu kontak yaitu 24, 36, 48, 60,dan 72 jam dan 5 taraf rasio berat tulang ikan mujair: asam sitrat 1:2, 1:3, 1:4, 1:5 dan 1:6. Penentuan pengaruh waktu perendaman dan rasio dilakukan dengan menggunakan metode pembobotan berdasarkan hasil uji statistik dengan menggunakan 5 parameter pengujian yakni rendemen, kadar abu, kadar air, viskositas, dan kekuatan gel. Dari hasil penelitian menunjukkan bahwa pengaruh waktu perendaman dengan menggunakan 5 parameter tertinggi adalah 36 jam dan rasio adalah 1:6, dengan rendemen 9,439%, kadar abu 2,8%, kadar air 5,81%, viskositas 5,24 cP, dan kekuatan gel terbaik 38,1 mm/kg.sKata kunci : Gelatin, tulang ikan mujair, asam sitrat, viskositas, kekuatan gel
PROSES KONVERSI MINYAK GORENG BEKAS MENJADI POLIOL SEBAGAI BAHAN BAKU BUSA POLIURETAN
Authors: Nofiyanti Estin , Wardani Gatut Ari
Published: January 2020

Minyak goreng bekas yang bersifat karsinogenik dan selama ini menjadi limbah yang  mencemari lingkungan berpotensi sebagai bahan baku pembuatan busa poliuretan yang bernilai ekonomis. Penelitian ini bertujuan untuk mengkonversi minyak goreng bekas menjadi poliol dan selanjutnya dijadikan sebagai bahan baku busa poliuretan. Minyak goreng bekas dikonversi menjadi poliol melalui proses hidroksilasi menggunakan asam formiat dan asam peroksida.  Proses pembuatan poliuretan ini direaksikan dengan Toluen diisosianat (TDI) dan PEG-400. Poliuretan dikarakterisasi menggunakan FTIR, perhitungan massa jenis dan nilai derajat penggembungan. Poliuretan yang terbentuk memeiliki massa jenis sebesar 0,38 g/mL dan nilai derajat penggembungan sebesar 13,21%.
PENGARUH LAMA PENGOMPOSAN TERHADAP TUBUH BUAH DAN KANDUNGAN GIZI PADA JAMUR TIRAM PUTIH (Pleurotus ostreatus)
Authors: Prayogo Tegar Setyo , Razak Abd. Rahman , Sikanna Rismawati
Published: January 2020

Telah dilakukan penelitian tentang pengaruh lama pengomposan terhadap tubuh buah dan kandungan gizi pada jamur tiram putih (Pleurotus ostreatus). Penelitian ini bertujuan untuk mengetahui waktu terbaik untuk pengomposan media tanam terhadap produksi tubuh buah jamur tiram putih dan untuk mengetahui kandungan gizi produk tubuh buah jamur tiram putih. Penelitian didesain menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari lima perlakuan dan tiga kali pengulangan pada taraf kepercayaan 95 %. Penelitian dilakukan dengan lama pengomposan 1, 3, 5, 7 dan 9 hari. Hasil penelitian menunjukkan bahwa waktu terbaik untuk pengomposan media tanam ialah lama pengomposan 5 hari dengan berat tubuh buah total sebesar 84,050 g untuk 3 kali panen selama 45 hari. Kandungan gizi tubuh buah jamur (terhadap berat kering) yang dihasilkan adalah protein 38,57%, karbohidrat 47,92%, lemak 4,34% dan abu 9,16%.Kata kunci: Lama pengomposan, kandungan gizi, jamur tiram putih (Pleurotus ostreatus)
RECOVERY REMAZOL YELLOW MENGGUNAKAN GEL KITOSAN TERTAUT SILANG GLUTARALDEHID
Authors: Nurhaeni Nurhaeni , Hardianti Desi , Hardi Jaya , Diharnaini Diharnaini , Khairunnisa Khairunnisa
Published: January 2020

Telah dilakukan penelitian tentang recovery Remazol yellow menggunakan gel kitosan tertaut silang glutaraldehid. Tujuan penelitian ini untuk menentukan persentasi recovery Remazol yellow menggunakan kitosan tertaut silang glutaraldehid terhadap pengaruh pH, waktu kontak dan konsentrasi larutan. Penelitian ini dilakukan dengan menggunakan rancangan acak lengkap (RAL), pada variasi pH 2, 3, 4, 5 dan 6; variasi waktu kontak 6, 12, 18, 24 dan 30 jam; serta variasi konsentrasi larutan zat warna Remazol yellow 10, 15, 20, 25 dan 30 ppm, dan setiap perlakuan dilakukan sebanyak 2 kali pengulangan. Persentasi recovery terbaik diperoleh pada pH 6, waktu kontak 24 jam dan konsentrasi Remazol yellow 30 ppm dengan persentasi recovery masing-masing 77,39%, 79,68% dan 86,46%. Kata kunci : kitosan, glutaraldehid, recover, remazol yellow, tertaut silang
UJI AKTIVITAS ANTIBAKTERI EKSTRAK BUNGA TEMBELEKAN (Lantana camara Linn) DARI BEBERAPA TINGKAT KEPOLARAN PELARUT
Authors: Parwati Parwati , Ridhay Ahmad , Syamsuddin Syamsuddin
Published: January 2020

Telah dilakukan penelitian tentang Uji aktivitas antibakteri ekstrak bunga tembelekan (Lantana camara Linn.) dari beberapa tingkat kepolaran pelarut. Tujuan penelitian ini adalah mengetahui berapa daya hambat ekstrak bunga tembelekan terhadap bakteri gram positif (Streptococcus mutans) dan bakteri gram negatif (Vibrio cholerae) berdasarkan tingkat kepolaran pelarut. Metode ekstraksi yang digunakan dalam penelitian ini yaitu metode maserasi dengan 3 tingkat polaritas pelarut yang dimulai dari pelarut non polar (n-heksan), diikuti dengan pelarut semipolar (etil asetat) dan pelarut polar (etanol). Pengujian aktivitas antibakteri dilakukan dengan uji metode sumur difusi, dan parameter yang diamati adalah diameter daya hambat. Hasil penelitian menunjukan bahwa ekstrak etil asetat memberikan daya hambat tertinggi 17.33 mm pada bakteri gram negatif (Vibrio cholera) dan ektrak etanol 13,2 mm pada bakteri gram positif (Streptococcus mutans).Kata kunci: Ekstak bunga tembelekan, Daya hambat, Antibakteri.
PERBANDINGAN KADAR MINERAL MAKRO DAN MIKRO PADA BERBAGAI JENIS UBI BANGGAI (Dioscorea sp.)
Authors: Lasampa Krisma Meylin , Khairuddin Khairuddin , Prismawiryanti Prismawiryanti , Sosidi Husain
Published: January 2020

Penelitian tentang kandungan mineral makro kalium, natrium, magnesium  dan mineral mikro seng yang terkandung dalam Ubi Banggai (Dioscorea sp) berwarna ungu, kuning dan putih telah dilakukan. Tujuan dari penelitian ini adalah untuk mengetahui perbandingan mineral makro dan mikro dari berbagai jenis ubi banggai (Dioscorea sp) berwarna ungu kuning dan putih. Hasil penelitian menunjukan kadar mineral yang terkandung dalam ubi banggai berwarna ungu rata-rata lebih tinggi daripada ubi banggai berwarna kuning dan putih. Kadar mineral kalium dalam ubi banggai berwarna ungu, kuning dan putih masing-masing sebesar 102,725 ppm; 57,65 ppm; 24,525 ppm, mineral natrium masing-masing sebesar 27,65 ppm; 11,575 ppm; 9,8 ppm, mineral magnesium masing-masing sebesar 11,13 ppm; 11,15 ppm; 11,03 ppm dan mineral seng masing-masing sebesar 21,95 ppm; 15,89 ppm; 15,51 ppm.Kata Kunci : Ubi banggai, kalium, natrium, magnesium, seng
PENENTUAN SUHU DAN pH HIDROLISIS KITOSAN DARI CANGKANG KEONG SAWAH (Pila ampullacea) TERHADAP BERAT MOLEKUL HIDROLISATNYA
Authors: Nurhaeni Nurhaeni , Sambali Angriani , Satrimafitrah Pasjan , Jusman Jusman
Published: January 2020

Telah dilakukan penelitian tentang penentuan suhu dan pH hidrolisis kitosan dari cangkang keong sawah (Pila ampullacea) terhadap berat molekul hidrolisatnya dengan menggunakan enzim α-amilase. Penelitian ini bertujuan untuk menentukan suhu dan pH hidrolisis terbaik yang dapat menghasilkan hidrolisat kitosan dengan berat molekul yang rendah. Variasi suhu yang digunakan untuk menghidroisis kitosan dari keong sawah antara lain 300C, 400C, 500C, 600C dan 700C. Sedangkan pH hidrolisis yang diterapkan  untuk menghidrolisis kitosan dari cangkang keong sawah antara lain 4,5; 5,0; 5,5; 6,0 dan 6,5. Pengujian berat molekul hidrolisat kitosan dilakukan dengan menerapkan metode Mark-Houwink dan parameter yang diamati adalah berat molekul hidrolisat kitosan. Hasil penelitian menunjukan bahwa suhu optimum hidrolisis kitosan yaitu suhu 500C dan menurunkan berat molekul menjadi 14.488 g/mol. Sedangkan untuk pH optimum hidrolisis adalah pH 5,5 dan menurunkan berat molekul 12.850 g/mol.Kata Kunci : hidrolisat kitosan, cangkang keong sawah, enzim α-amilase
AKTIVITAS ANTIBAKTERI FRAKSI n-HEKSAN, KLOROFORM, ETIL ASETAT BUNGA KAMBOJA (Plumeria alba) TERHADAP BAKTERI Staphylococcus aureus DAN Salmonella typhi
Authors: Rupiniasih Ni nyoman , Indriani  , Syamsuddin  , Razak Abdul Rahman
Published: January 2020

Tests on the inhibition extract of n-hexane fraction, extract of chloroform fraction and extract of ethyl acetate fraction of frangipani flower (Plumeria alba) on Staphylococcus aureus and Salmonella typhi has been done. This study aims to determine the activity of frangipani flower extract on the growth of S. aureus and S. typhi bacteria. Frangipani flowers was macerated using methanol solvents. The obtained methanol extract was partitioned with n-hexane, chloroform and ethyl acetate solvents, respectively. The three extracts were tested for antibacterial activity at a concentration of 10% using the diffusion well method. The test results showed that the n-hexane, chloroform and ethyl acetate fractions showed an inhibition zone of 9.77 mm, 20.89 mm and 19.44 against S. aureus whereas S. typhi showed an inhibition zone of 15.86 mm, 27.69 mm and 21.74 mm.

Keywords: Antibacterial, extract of frangipani flower, Staphylococcus aureus, Salmonella typhi.
PERSEN DEGRADASI EKSTRAK ETANOL KELOPAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SELAMA PENYIMPANAN THE PERCENTAGE OF ETHANOL EXTRACTS OF ROSELLE PETALS (Hibiscus sabdariffa L.) DURING STORAGE
Authors: Firmasari Firmasari , Sumarni Ni Ketut , Ruslan  , Ys Hardi
Published: January 2020

Ethanol extract of roselle petals (Hibiscus sabdariffa L.) is more stable in low pH than in high pH. The research aims to monitor and determine the effect of ratio content in ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce and the pH effect on the percentage of ethanol extract degradation during storage. Two independent variables implemented in this study, are ratio content of ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce and pH. Ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce with ratio content 0,5:1; 1:1; and  1:0 (w/w) and adjusted to pH 2, pH 3, pH 4, pH 5 and pH 6, respectively were investigated. The absorbance measurement of Ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce was depend on each treatment, then analyzed using completely randomized design. The percentage of ethanol extract of roselle petals (Hibiscus sabdariffa L.) degradation in tomato sauce decreased in ratio content 1:0 (w/w) at pH 2 with percentage content of degradation is 30.09%. Furthermore, after 10 days of storage, the highest percentage of ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce degradation is 93.33% with ratio content is 0.5:1 at pH 6 and the lowest is 30.09% with ratio content 1:0 at pH 2.

Keywords: Roselle petals, Ethanol Extract, Tomato Sauce, Percentage of Degradation
KARAKTERISASI SILIKA DARI ABU AMPAS TEBU
Authors: Paramitha Tifa , Saputra Tri Reksa , Aliah Amelia Nur , Tarigan Arijan Vevayose , Ghozali Mukhtar
Published: January 2020

Silica has been successfully extracted from sugarcane bagasse ash by using alkali method. Extraction was carried out using sodium hydroxide solution to obtain sodium silicate solution and solid residue. Then, hydrochloric acid solution was added to sodium silicate solution until pH of solution was 7 and silica was formed. Furthermore, silica was heated in oven at 150 ˚C and calcined at 700 ˚C. Variation of this study were extraction time (1, 2 and 3 hours). The synthesized silica were characterized functional groups, acidity level, water adsorption ability and adsorption ability of Cu2+ ion. The results of FTIR analysis showed that all silica contain siloxane group. Silanol group did not appear because during calcination process occured the condensation reaction of silanol group. Other characterization results showed that silica with extraction time of 2 hours had highest acidity level, water adsorption ability and adsorption ability of Cu2+ ion, which were 6.201 mmol/gram, 86.41% and 92.55%.

Keywords : bagasse ash, extraction, silica, siloxane
APLIKASI EKSTRAK LIKOPEN DARI BUAH TOMAT APEL (Lycopersicum pyriforme) TERSALUT MALTODEKSTRIN PADA PENGOLAHAN MIE INSTAN FUNGSIONAL
Authors: Noviyandari Dini , Hardi Jaya , Mappiratu Mappiratu
Published: January 2020

A research about the application of lycopene extract of tomato fruit (Lycopersicum pyriforme) coated with maltodextrin in functional instant noodle processing has been done. The aim of the research was to determine the effect of lycopene coated with maltodextrin concentration on the shelf life of functional instant noodle. The goal was reached by using various of lycopene coated with maltodextrin concentration i.e. 500 ppm, 1000 ppm, 1500 ppm, 2000 ppm and 2500 ppm. The functional instant noodle was kept at room temperature for 49 days and it was measured every 7 days. The result showed that the shelf life of functional instant noodle increased with the increase of lycopene coated with maltodextrin concentration. The longest shelf life (354.79 days) was found in 2500 ppm of maltodextrin concentration.

Keywords: tomato, lycopene, instant noodle, shelf life
Editorial: Corporate governance and regulation is getting ready for the 2020s
Authors: Braendle Udo
Published: January 2020

The latest 2019 Issue 4 of Volume 8 is devoted to interesting topics in the field of governance as well as regulation that will be very relevant for 2020 and beyond: financial reporting, the multi-factor partitioning model, corporate governance in Middle East and Africa, valuation methods, impact finance, Corporate Social Responsibility and Green Bonds
ZAKAT SAHAM DAN OBLIGASI: HARUSKAH?
Authors: Sofia Diyani Ani
Published: January 2020

This Reserch analyzes about Yusuf Qardhawi’s view regarding zakat on shares. Besides analyzing also zakat bonds. This is a contradiction between scientists at that time because the law was still not clearly stated or in the Qur’an or hadith. The method used to analyze both of them uses descriptive method by reviewing published journals and other written works as a reference to get a conclusion. The short comings of this journal are investigated by not including the original sources contained in the book written directly by Yusuf Qardhawi and the lack of references obtained to find conclusions that are appropriate and the lack of implementation in term of the public. The conclusion resulting from this analysis is that every zahr and bonds owned by shareholders are obliged to be zakat. Nishab and haul on shares obtained are equated with gold zakat zakah on shares and bonds, which is two and a half percent of the yield or on the nisab which is eighty-five gramsof gold with a haul for one year.
Development Study and Effectiveness of Online Data Based Scientific Writing Model Using Endnote Application for MGMP Chemistry Teachers Padang Panjang City
Authors: Zainul Rahadian , Oktavia Budhi , Nasra Edi , Arianti Visca Alisia , Fatimah Putri , Liza Yulia Mona , Setiadi Trihanto
Published: January 2020

In writing scientific work, a work system is needed online (online) so that the search process is fast and accurate. The online data-based writing model with endnote application is an alternative model of scientific writing that can be applied to school teacher teachers and lecturers. The purpose of this study was to develop a model of scientific writing and measure the effectiveness of its application to MGMP Chemistry teachers in Padang Panjang City. The method used is the development of the ADDIE model and the success test with CV (Coefficient of Variations). Implementation is carried out on all Chemistry teacher teachers who are members of the Padangpanjang City Chemical MGMP. Each teacher will receive training and assistance in creating an Online Library as a database. The training continued with the application of the preparation of scientific works based on student learning outcomes data in each school. From the results of the study, it was found that the level of ease in literacy and compilation of scientific work reached 70% SS and 30% S. The level of interest of Master in compiling scientific work with Endnote reached 30%. SS san 70% S. The desire of participants to start compiling scientific work reaches 20% US, 60% S and 20% SS. The training effectiveness test found that the coefficient of variation had decreased from 2.75% to 1.63%, so it could be concluded that the model for the preparation of scientific work was successfully applied to the Teachers of the Padangpanjang Chemical MGMP.
Efforts to Improve Competency of Teacher MGMP Chemistry, Padang City Through Training For Development of Teaching Materials Based on Guided Discovery Learning
Authors: Yerimadesi Yerimadesi
Published: January 2020

This article is compiled based on the results of community service activities through the community partnership program of Padang State University in 2018 year. This activity aims to improve the competence of chemistry teachers in Padang City chemistry group through training based on guided discovery learning materials. The way to implement these activities can be done through training and workshops to 53 Padang chemistry group teachers. The instruments used were questionnaires for teacher and student responses. The product trial was carried out on 27 students of class X at Padang 1 Public High School in the 2018/2019 academic year. Data analysis was performed using percentage techniques and moment Cappa Cohen's. From the results of the questionnaire analysis of the chemistry teacher's response to the implementation and presentation of the material by the resource persons in succession, the average percentage percentage was 88% and 91% with the second category of aspects that being assessed very high. From the questionnaire analysis of teacher and student responses to learning using chemical modules based on guided discovery learning (GDL), the mean value of the kappa moment was 0.85 for the teacher's questionnaire responses with very high categories and 0.70 for the responses questionnaire of students with high categories. It was concluded that training in the preparation of teaching materials based on guided discovery learning could improve the competence of chemistry group teachers.
Improvement of MGMP Chemistry Teacher Competency in 50-Kota Districts on OSN Preparing Students
Authors: Nasra Edi , Etika Sri Benti , Kurniawaty Desy , Bahrizal Bahrizal , Yusmaita Eka
Published: January 2020

Training in increasing the competence of MGMP Chemistry teachers in 50 City Regencies in preparing students for the National Science Olympiad (OSN). The activity began with filling out a questionnaire for the readiness of the teachers in the learning process and pre-test to see the initial abilities of the MGMP Chemistry teachers in the City 50 District. After training in strengthening chemical materials and discussing HOTS questions in the fields of Analytical Chemistry, Organic Chemistry, Inorganic Chemistry, Physical Chemistry and Biochemistry, a post test was conducted to evaluate the achievement of the objectives of the activity. From the questionnaire given at the beginning of the activity it can be concluded that in general the teachers were ready for learning even though they were not used to the HOTS questions of the Olympic type questions. This is directly proportional to the pre-test results with an average value of 3.625 (scale 10). After the training of the teachers there was a significant increase which was shown by the results of the post test with an average of 5.5 (scale 10). As an evaluation material, at the end of the activity the satisfaction questionnaire was distributed and the results obtained were an average of a questionnaire of 3.47 (scale 4). Generally teachers complain about the lack of training time so that the absorption of the material provided is quite low.
A Comprehensive Review on Brain-Computer Interface Controlled Movements
Authors: Virdi Kulsheet Kaur , Pawar Satish
Published: January 2020

A brain-computer interface (BCI), also referred to as a mind-machine interface (MMI) or a brain-machine interface (BMI), provides a non-muscular channel of communication between the human brain and a computer system. With the advancements in low-cost electronics and computer interface equipment, as well as the need to serve people suffering from disabilities of neuromuscular disorders, a new field of research has emerged by understanding different functions of the brain. The electroencephalogram (EEG) is an electrical activity generated by brain structures and recorded from the scalp surface through electrodes. Researchers primarily rely on EEG to characterize the brain activity, because it can be recorded noninvasively by using portable equipment. The EEG or the brain activity can be used in real time to control external devices via a complete BCI system. For these applications there is need of such machine learning application which can be efficiently applied on these EEG signals. The aim of this research is review different research work in the field of brain computer interface related to body parts movements.
The Impact of Financial Performance, Financial Risk, Liquidity, and Corporate Governance on Corporate Value
Authors: Karlina Yunita , Lako Andreas
Published: January 2020

The purpose of this study is to analyze the impact of financial performance, financial risk, liquidity, and corporate governance (CG) on the corporate value in the period t0 and t+1. The proxy for financial performance, financial risk, liquidity, and corporate governance is respectively return on equity (ROE), debt to assets ratio (DAR), current ratio (CR), and corporate governance perception index (CGPI). The proxy for corporate value is price to book value (PBV). The method for analysis data is multiple linear regression analysis. The results show that financial performance has positive impact on the corporate value in the period t0 and t+1 on one percent level of significance. However, financial risk and liquidity have positive impact on the corporate value in the period t0 and t+1 but the impact is not statistically significant. CG shows different impact on the corporate value in the period t0 and t+1 in which it indicates negative impact in the period t0 but positive impact in the periode t+1. The impacts are however statistically insignificant. Generally, the results indicate that financial performance is the main factor that increases corporate value.
Heroic Journey of Katniss Everdeen in Suzanne Collins' Novel Catching Fire
Authors: Fakhruddin Rohmat Anang
Published: January 2020

This  research  aims  to reveal  the  journey  of  Katniss  Everdeen  by using monomyth cycle in Suzanne Collins’ novel Catching  Fire (2009).  This research used  the  literary criticism that employs the monomyth cycle of Joseph  Campbell. The monomyth theory was used to explore Katniss’ heroic journey within the novel Catching Fire.  All data were classified into the following stages of monomyth cycle: departure, initiation, and return. Each stage represented the development of Katniss’s traits during her journey. From the analysis, it was discovered that Katniss began her journey by adapting herself in Victor’s Village after winning the 74th Hunger Games. She began her journey after President Snow provided her a challenge to convince him to reduce the uprising acts in each District. She refused to return home since she must rescue Peeta. Therefore, this paper concludes that this novel can be a continuity step of Katniss’ Journey for transforming herself to be a heroine at the end of her Journey.
KONSTRUKSI IDENTITAS DIRI TOKOH UTAMA DALAM NOVEL HEBI NI PIASU DAN HAIDORA KARYA KANEHARA HITOMI
Authors: Friandini Asri Rizki , Rahayu Lina Meilinawati , Saleha Amaliatun
Published: January 2020

A person forms an identity not only from the influence of social environment, but also anxiety. This study aims to reveal the identity construction of the main characters in two Japanese novels entitled Hebi ni Piasu (2003) and Haidora (2007) by Kanehara Hitomi. These novels describe the construction of self identity which are represented through the body and fashion. The self identity constructions are influenced by social environment and anxiety. Moreover, in Japan, there is a term ikizurasa which is used to describe feelings of emptiness and isolation. This research used self identity theory and descriptive analysis method to analyse the data. The data in this research were obtained from two novels entitled Hebi ni Piasu (2003) and Haidora (2007). The results showed that the contruction of self identity of the main character was formed by the influence of the self and anxiety as well as the social environment. The two main characters showed that they used this construction of self identity to survive.
Supply chain management and lean concept in construction: a case of Ghanaian building construction industry
Authors: Boateng Ali
Published: January 2020

Supply chain management (SCM), for the past two decades, has been identified by manufacturing industries as a new way of doing business. Construction, similar to manufacturing and other services industries, is experiencing emerging trends that are aimed at giving ultimate satisfaction to the end user. Lean construction is a way to design production systems in order to minimize waste of materials, time and efforts which generate maximum possible amount of value. This research looked into how SCM can benefit the Ghanaian building construction industry through the application of lean concept. The purpose of this study is to assess the level of collaboration and coordination in planning of activities among construction industry players and investigate into the sources of waste in construction. The study, employing survey and case study approaches, collected data through structured questionnaires, in-depth interviews and direct observation of ongoing projects on KNUST campus. One sample t-test was used to analyse the data. The findings pointed out that the level of coordination and collaboration in planning among industry players were very appreciable though there still exist room for improvement.
Linguistic Analysis of Statements Concerning Paintings Viewed Under Different Instructions by Experts and Novices in the Visual Arts
Authors: Francuz Piotr Jan , Szymańska Anna , Wojtasiński Marcin
Published: January 2020

This research aimed to perform linguistic analysis of the statements of experts and novices in the arts concerning figurative paintings from the 16th to 19th century of different aesthetic value under different instructions. The experts were selected based on a formal criterion of education in visual arts. Based on previous research, the paintings were divided into three groups: beautiful, not beautiful and controversial. The participants viewed them from different points of view defined by seven instructions. The Linguistic Inquiry Word Count (LIWC) was used to measure the connotation of statements in emotional and cognitive terms. Hypotheses, according to which the statements of novices are marked more with emotional, and those of experts more with cognitive processes, were only partially confirmed. It turned out that the emotional or cognitive connotation of statements concerning paintings is mostly modified by the point from which they are viewed and their aesthetic value.
Influencia de los conceptos ratzingerianos “laicismo” y “relativismo” en la configuración de las relaciones Iglesia-Estado
Authors: Salinas Mengual Jorge
Published: January 2020

Los conceptos “laicismo” y “relativismo” son fundamentales para una comprensión adecuada de la ideología que subyace en la sociedad actual. El presente trabajo pretende analizar el pensamiento de Joseph Ratzinger-Benedicto XVI sobre esta materia, a fin de comprender la propuesta que el teólogo, y posteriormente papa, alemán lleva a cabo a la hora de abordar esta realidad. Solo desde la verdad y lo que Ratzinger denomina laicidad, será posible entender y desarrollar convenientemente las relaciones que han de establecerse entre la Iglesia y el Estado.
Keragaman Morfologi dan Komponen Hasil Kubis Bunga (Brassica oleracea var. botrytis L.) di Dataran Tinggi dan Dataran Rendah
Authors: Haryanti Dyra , Efendi Darda , Sobir Dan
Published: January 2020

Increasingly limited land in the high elevation and increasing of global temperature needed breeding of cauliflower plants originating from temperate regions to be adaptively planted in low elevation. This study aimed to identify the morphological variability and yield component of cauliflower planted in the high elevation and low elevation. The experiment was conducted in Pasir Sarongge (1,117 m asl) and Tajur II (340 m asl) from June to December 2016. This experiment was conducted with a randomized complete block design single-factor (12 genotypes of cauliflower) with three replications. The results showed that BOB 021 genotype was not flowering in Tajur. Qualitative characteristics that are stable in two locations include leaf attitude, leaf color, curd color, leaf lobing, and curd covering by inner leaves. Vegetative characters and yields in low elevation were higher than high elevation, time of flowering and harvesting in high elevation was earlier than in low elevation. Based on the correlation analysis, an increase in the yield characters can be seen from the increase in vegetative character and increase in longevity time of flowering and harvesting.

Keywords: correlation, flowering, qualitative, quantitative
¿Qué es un Paciente? Los márgenes del sujeto en el modelo integral en APS.
Authors: Lawrence Zegers Tomás
Published: January 2020

El presente texto pretende reflexionar en torno a la noción de paciente, frente a lo cual, el análisis del concepto de sujeto a la base emana como inevitable para entender la relación dialéctica inconsciente entre un paciente y una alteridad que escucha ese relato que el paciente trae. Se concluye en función de que el paciente es el resultado del encuentro con su terapeuta. Es la interacción entre ambos, la que ofrece una realidad única sobre la cual trabajar, poniendo énfasis en la escucha y traducción de las demandas del paciente para la restitución del síntoma. El paciente entonces acontece en el espacio clínico, y su saber, el de sus experiencias de vida, se torna el principal dispositivo para el cambio. El terapeuta sólo es un espejo que restituye y devuelve una imagen del padecer del sujeto, quien finalmente se escuchadesde otro lugar.
El Niño Hiperactivo: entre el Fármaco y la Pulsión.
Authors: Pinochet Mendoza Nicolás
Published: January 2020

En el presente artículo se desarrolla una reflexión sobre el uso de fármacos en la infancia en relación a categorías de lo viviente, tomando algunos conceptos de la obra de George Canguilhem como la vida, la salud, la enfermedad y la muerte, posicionando los postulados freudianos sobre la enfermedad, las pulsiones (Trieb) de vida y muerte, para luego plantear una propuesta sobre el sentido puesto en la enfermedad y el fármaco. Todo lo anterior usándose como ejemplo el trastorno por déficit atencional con hiperactividad TDAH.
Epithelioid glioblastoma presenting as multicentric glioma: A case report and review of the literature
Authors: Kohno Daisuke , Inoue Akihiro , Fukushima Mana , Aki Tomoharu , Matsumoto Shirabe , Suehiro Satoshi , Nishikawa Masahiro , Ozaki Saya , Shigekawa Seiji , Watanabe Hideaki , Kitazawa Riko , Kunieda Takeharu
Published: January 2020

Background:

Epithelioid glioblastoma is a rare aggressive variant of glioblastoma multiforme (GBM), which was formally recognized by the World Health Organization classification of the central nervous system in 2016. Clinically, epithelioid GBMs are characterized by aggressive features, such as metastases and cerebrospinal fluid dissemination, and an extremely poor prognosis. A rare case of epithelioid GBM that was discovered as a multicentric glioma with different histopathology is reported.

Case Description:

A 78-year-old man was admitted to our hospital with mild motor weakness of the right leg. Neuroimaging showed small masses in the left frontal and parietal lobes on magnetic resonance imaging. The abnormal lesion had been increasing rapidly for 3 weeks, and a new lesion appeared in the frontal lobe. 11C-methionine positron emission tomography (PET) showed abnormal uptake corresponding to the lesion. To reach a definitive diagnosis, surgical excision of the right frontal mass lesion was performed. Histological findings showed diffuse astrocytoma. Only radiotherapy was planned, but the left frontal and parietal tumors progressed further within a short period. Therefore, it was thought that these tumors were GBM, and a biopsy of the left parietal tumor was performed. The histological diagnosis was epithelioid GBM. Immunohistochemistry showed that most tumor cells were negatively stained for p53 and isocitrate dehydrogenase 1. BRAF V600E mutations were not identified, but TERT promoter mutations were identified. Immediately after surgery, the patient was given chemotherapy using temozolomide, extended local radiotherapy and then bevacizumab. After 6 months, he showed no signs of recurrence.

Conclusion:

Epithelioid GBM is one of the rarest morphologic subtypes of GBM and has a strongly infiltrative and aggressive nature. Therefore, careful identification of preoperative imaging studies and detailed evaluation of genetic studies are necessary to select the appropriate treatment for epithelioid GBM.
Mental and behavioral disorders in temporal lobe epilepsy
Authors: Vulea Diana , Butnăraşu Simona , Băcilă Ciprian
Published: January 2020

The evolution of temporal lobe epilepsy often implies complex psychiatric manifestations, as the elements can be part of an aura, as well as of a psychiatric pathology of its own.

This paper presents the case of a patient diagnosed with focal epilepsy of the right mesial temporal lobe, who subsequently developed psychotic disorder due to a general medical condition with medico-legal implications, treatment noncompliance and difficulties in controlling epileptic seizures.
Combined Treatment with Oral Hypoglycemic Agents and Insulin in Longer Run May Lead to Cognitive Derangement Secondary to Hypoglycemia
Authors: Aman Gupta  , Abhishek Kumar Singh  , Ramesh Deka C
Published: January 2020

To determine the risk associated with combined therapy of oral hypoglycemic agents and insulin in the development of cognitive decline secondary to hypoglycemia. The study comprised of two arms, in arm 1 (n=30) diabetic patients on OHA and insulin combined therapy were observed for cognitive derangement based on Mini Cog score (Pearson’s correlation r was calculated between the two)and the patients were also ruled out for hypoglycemia episodes. Similarly, in arm 2(n=30), only OHA therapy patients were evaluated on the same parameters using Pearson’s correlation. Mean Mini Cog scores were found to be 1.79  in patients on combinational therapy of OHA and insulin. In the case of patients only on OHA for diabetes control mean Mini Cog, the score was 2.0. Pearson’s coefficient r 1 between OHA plus insulin duration of therapy in years with Mini Cog score was  -0.5831 at a statistically significant p value of 0.0007. While on the other hand, patients only on OHA therapy (in years)were not significantly correlated with Mini Cog scores.(r 2= - 0.0149 ; p value =0.93771).In the arm 1 (OHA + Insulin(n=30)), the average number of hypoglycemia episodes were found to be 2.633 as compared to the OHA only group in which mean hypoglycemia episodes were 0.866. There was a significant difference in the hypoglycemia episodes, as confirmed by the student t-test (4.06368) at a p value = 0.000147. Based on the study findings, combined Treatment with Oral Hypoglycemic agents and insulin in longer run may lead to cognitive derangement secondary to hypoglycemia.*Significance level <0.01, Negative correlations are indicative of lower the values of battery scores higher would be cognitive derangement.