bluuebunny/crossref_metadata_2025 huggingface dataset:
Pendugaan tingkat bahaya erosi pada hutan dan lahan Kopi Arabika (Coffea arabica) di Kecamatan Sibolangit
Authors: Situngkir Devisna , Jamilah  , Marbun Posma
Published: December 2019

Vegetation is one of the factors affecting the actual erosion of a land. The changes in forest land use patterns into coffee lands can increase the erosion hazard. The aim of this research was to get information about erosion hazard level in forest and coffee arabica lands in Sibolangit Sub District by using USLE (Universal Soil Loss Equation) method. The Research was conducted in January-July 2017 in Sibolangit District at three villages ie Negeri Suah, Bukum and Cinta Rakyat. In this research, were 6 samples in Arabica coffee field sample (1, 2 and 3) and in Forest sample (1, 2 and 3). The research was conducted by using survey method and continued with soil erosion calculation by USLE (Universal Soil Loss Equation) prediction equation. The results showed that the value of erosion in the coffee arabica land in Cinta Rakyat Village on the slope of 60% was 432,87 ton.ha-1.year-1 (very high). The highest erosion hazard level in Bukum Village on the slope of 25% was 88,144 ton.ha-1.year-1 and the highest erosion hazard level in the Negeri Suah Village on the slope of 46% was 193,083 ton.ha-1.year-1. The value of erosion in the area forest in the Cinta Rakyat Forest on the slope 58% was 1,087 ton.ha-1.year-1with lowest erosion hazard. The lowest erosion hazard level in the Bukum Forest on the slope of 21% was 0,190 ton.ha-1.year-1and the lowest erosion hazard level in the Negeri Suah Forest on the slope of 36 % was 0,309 ton.ha-1.year-1.
Pertumbuhan Dan Produksi Genotipe Bawang Merah (Allium ascalonicum L.) Lokal Samosir Generasi Ke Enam (M1V6) Hasil Iradiasi Sinar Gamma di Dataran Tinggi Samosir
Authors: Sipangkar Daniel C , Mariati  , Meirani
Published: December 2019

The objective of this research was to identify the growth and yield of sixth-generation (M1V6) of local Samosir shallot, irradiated by gamma. The research was conducted at Rianiate village, Pangururan Samosir district at altitude ± 1164 meters above sea level, which began from July up to October 2016. This study used an augmented design with 8 levels of irradiated dosage (0; 1; 2; 3; 4; 5; 6; 8) Gy. The observes parameters were plant length, number of leaves, number of tillers, bulb number, bulb diameter, bulb fresh weight, and bulb dry weight after twice harvesting. The study result showed that population as a result of dosage irradiation at 5 Gy were significant difference compared to control plant populations with a lower mean value for the plant length, the number of leaves, the number of tillers and fresh weight while on tuber diameter, population of dosage irradiation 8 Gy were significant difference compared to the control population.
Pengaruh Curah Hujan dan Hari Hujan Terhadap Produktivitas Karet (Hevea brasiliensis Muell-Arg.) Berumur 10, 15 dan 20 Tahun di Kebun Aek Pamienke PT. Socfin Indonesia (SOCFINDO)
Authors: Hasibuan Wanda Andika , Irsal Irsal , Mariati
Published: December 2019

Water plays a major role in the process of rubber plant metabolism. An inappropriate amount of water has a negative impact on the achievement of rubber productivity. The aim of the research was to study the effect of rainfall and rainy day on the rubber productivity in 10, 15 and 20 years old. The research was conducted at Aek Pamienke Plantation PT. Socfin Indonesia (Socfindo), sub-district of Aek Natas, district of Labuhan Batu Utara, Province of North Sumatera from July to August 2017. This study used secondary data available in plantation administration, consisted of rubber productivity data in 2014, 2015 and 2016, whereas rainfall and rainy day monthly data in 2013, 2014 and 2015. The analytical method used is multiple linear regression analysis and correlation analysis. The feasibility regression model was tested with the classic assumption test consists of a normality test, heteroscedasticity test, multicollinearity test, and autocorrelations test by using SPSS v.22 statistical tool for windows. Classical assumption test results showed that the regression equation in rubber plants in 10, 15 and 20 years old have been qualified. The regression analysis showed that rainfall and rainy day variables partially and simultaneously influence unreal with alpha 5% (Sig > á 0,05) to increased rubber productivity in 10, 15 and 20 years old. The result of correlation analysis shows rainfall and rainy day variables have a strong relationship to the rubber productivity, with correlation values of rainfall and rainy days at 0,846.
Pengaruh Pemberian Bahan Humat dan Pupuk SP-36 untuk Meningkatkan Ketersediaan Fosfor pada Tanah Ultisol
Authors: Lisdiyanti Mutia , Sarifuddin  , Guchi Hardy
Published: December 2019

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian bahan humat dan pupuk P untuk meningkatkan ketersedian P di tanah ultisol. Penelitian ini terdiri dari 2 faktor perlakuan dan 2 ulangan. Faktor pertama bahan humat dengan 4 perlakuan (0, 400, 800, dan 1200 ppm) dan faktor kedua pupuk P terdiri dari 4 perlakuan (100%, 75%, 50%, dan 0% rekomendasi). Hasil penelitian ini menunjukan bahwa pemberian bahan humat meningkatkan pH, P-tersedia, dan menurunkan Al-dd dengan dosis terbaik 800 ppm bahan humat dan pemberian pupuk P meningkatkan pH, P-tersedia, bobot kering akar dan tajuk, P-daun dan menurunkan Aldd dengan dosis terbaik 75% rekomendasi. Interaksi antara bahan humat dan pupuk P menunjukan pengaruh tidak nyata terhadap semua parameter yang diamati.
Pertumbuhan dan Produksi Jagung (Zea mays, L) Pada Berbagai Pengelolalaan Gulma di Kabupaten Simalunggun Provinsi Sumatera Utara
Authors: Fitria
Published: December 2019

Kehadiran gulma pada budidaya jagung dapat menurunkan produksi jagung, dengan adanya beberapa cara pengelolaan gulma dapat menekan gulma dan diharapkan dapat meningkatkan pertumbuhan dan produksi jagung pada lahan budidaya. Penelitian dilaksanakan di Kabaputen Simalungun provinsi Sumatera Utara pada bulan Juli-September 2013, menggunakan Rancangan Acak Kelompok (RAK) non faktorial dengan 10 perlakuan dengan 3 ulangan. Parameter yang diamati adalah tinggi tanaman, bobot kering 100 biji, produksi tongkol per plot dan produksi pipil per plot. Hasil penelitian menunjukkan bahwa cara pengelolaan gulma berpengaruh tidak nyata pada Tongkol per plot dan Bobot kering 100 biji namun berpengaruh nyata terhadap, Tinggi tanaman, dan produksi pipil per plot.
Eksplorasi dan Identifikasi Tanaman Aren (Arenga pinnata Merr) di Kabupaten Tapanuli Selatan
Authors: Harahap Parmanoan , Rosmayati  , Harahap Erwin Masrul , Harahap Darmadi Erwin , Harahap Fitra Syawal
Published: December 2019

Penelitian ini bertujuan untuk mengetahui keanekaragaman aksesi aren yang tersebar di Kabupaten Tapanuli Selatan dan mengelompokkan populasi seleksi untuk mendapatkan produksi yang tinggi. Delapan puluh aksesi aren populasi alam asal empat kecamatan telah di identifikasi menurut IPGRI (International Plant Genetic Resources Institute, 1995) dan dianalisis. Hasil menunjukkan terbentuknya 4 cluster yang disimpulkan bahwa cluster 1 merupakan kelompok aksesi aren dengan karakter fenotip yang sesuai untuk memproduksi buah dari mayang bunga betina. Sedangkan cluster 3 merupakan kelompok aksesi aren dengan karakter fenotip yang sesuai untuk memproduksi nira (bahan baku gula aren) dari mayang bunga jantan.
34 Aplikasi Mikoriza dan Beberapa Varietas Kacang Tanah Dengan Pengolahan Tanah Konservasi terhadap Perubahan sifat Biologi Tanah
Authors: Susanti Rini , Afriani Astri , Harahap Fitra Syawal
Published: December 2019

Pengolahan tanah terlalu sering dapat menyebabkan tanah menjadi lebih gembur dan terbuka dalam waktu lama, sehingga meningkatkan laju evapotranspirasi dan mengurangi daya pegang tanah terhadap air. mengurangi daya pegang tanah terhadap air. Pemberian pupuk hayati yang mengandung mikoriza merupakan salah satu solusi untuk mengatasi permasalahan tersebut. bermikoriza merupakan pupuk yang mampu bersimbiosis dengan perakaran tanaman dan berfungsi untuk meningkatkan ketersedian PH Tanah dan P dalam tanah. Sehubungan dengan hal tersebut, maka diperlukan penelitian tentang uji efektifitas pupuk hayati berbasis mikoriza arbuskula dalam meningkatkan Total Mikroba ketesersedian P dan meningkatkan pertumbuhan tanaman Penelitian dilaksanakan dikebun Pembibitan Balai Benih Dinas Tanaman Pangan dan Holtikultura Medan pada titik Koordinat N 98042’23,7” dan E 3030’28,3” dengan ketinggian ± 20 m diatas permukaan laut dimulai dari bulan April 2008 sampai dengan Mei 2018. Rancangan penelitian yang digunakan adalah Rancangan Petak Terpisah (Split Plot Design) yang terdiri dari 3 faktor yaitu Faktor Pengolahan Tanah sebagai anak petak yang terdiri dari 3 taraf : No Tillage (T0), Minimum Tillage (T1), Full Tillage (T2), Faktor inokulasi Mikoriza sebagai anak petak terdiri dari 2 taraf : tanpa inokulasi Mikoriza (M0), ipnokulasi Mikoriza (M1). Faktor Varietas sebagai anak-anak petak terdiri dari 3 taraf yaitu : Varietas Lokal (V1). Varietas gajah (V2) dan Varietas kancil (V3). Hasil Penelitian Untuk mengetahui pengolahan tanah dan pengaruh mikoriza serta kombinasi yang terbaik dari sistem pengolahan, penambahan mikoriza dan varietas kacang tanah (Arachis hypogaea L.) yang terbaik bagi peningkatan pH tanah, C-organik, P-tersedia, Bahan Organik Serta Total Mikroba Tanah.
Respons Pertumbuhan Beberapa Varietas Kedelai (Glycine max L Merr) Terhadap Penggunaan Pupuk Kompos dan Urea
Authors: Lubis Elli Afrida , Lisdayani  , Sari Putri Mustika
Published: December 2019

Pemupukan berpengaruh positif terhadap pertumbuhan dan produksi tanaman kedelai. Pupuk kompos merupakan pupuk organik yang diberikan kedalam tanah dapat meningkatkan unsur hara baik makro maupun mikro. Selain pemberian pupuk kompos dapat juga ditambahkan pemberian pupuk urea (sebagai pupuk anorganik) yang dapat memberikan unsur hara N bagi tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan dosis pupuk (kompos dan pupuk urea) dengan varietas terhadap pertumbuhan tanaman kedelai, serta menentukan varietas unggul yang terbaik terhadap pertumbuhan kedelai. Penelitian ini menggunakan rancangan acak kelompok (RAK) faktorial, dengan factor 1 dosis pupuk, D0: kontrol, D1:kompos 5ton/ha, D2 :kompos 10 ton/ha, D3: urea 25 kg/ha, dan D4 : urea 50 Kg/ha. Faktor 2 yaitu varietas dengan V1 : Varietas Anjasmoro dan V2 : varietas grobogan. Hasil penelitian menunjukkan bahwa pemberian pupuk kompos dan pupuk urea dapat meningkatkan pertumbuhan tanaman kedelai, dan juga mempercepat umur berbunga tanaman kedelai. Varietas grobogan memiliki umur berbunga paling cepat yaitu 32.33 hari dibandingkan dengan varietas anjasmoro. Peran pupuk kompos dan urea dalam penelitian meningkatkan unsur N tersedia bagi tanaman
Ketersediaan Hara Fosfor Akibat Pemberian Biochar Sekam Padi dan Pupuk Kandang Sapi pada Inceptisol Kuala Bekala
Authors: Mayendra  , Lubis Kemala Sari , Hidayat Benny
Published: December 2019

Fosfor merupakan salah satu unsur hara makro yang sangat diperlukan oleh tanaman. Penelitian bertujuan untuk mengetahui ketersediaan hara fosfor akibat pemberian biochar sekam padi dan pupuk kandang sapi pada tanah Inceptisol Kwala Bekala yang dilakukan di Rumah Kasa. Penelitian ini menggunakan rancangan acak kelompok dengan dua faktor dan tiga ulangan. Faktor pertama biochar sekam padi dengan 4 taraf: 0 g/pot; 25 g/pot; 50 g/pot dan 75 g/pot. Faktor kedua pupuk kandang sapi dengan 4 taraf: 0 g/pot; 25 g/pot; 50 g/pot dan 75 g/pot. Hasil penelitian menunjukkan bahwa pemberian biochar sekam padi sebanyak 50 g/pot meningkatkan ketersediaan hara fosfor sebesar 10,95 ppm, pemberian pupuk kandang sapi sebanyak 50 g/pot meningkatkan ketersediaan hara fosfor sebesar 14,25 ppm, dan interaksi biochar sekam padi 50 g/pot dan pupuk kandang sapi 50 g/pot mampu meningkatkan ketersediaan hara fosfor sebesar 11,01 ppm.
Inventarisasi Dan Identifikasi Cendawan Patogen Terbawa Benih Jagung (Zea Mays L.) Lokal Asal Sumatera Utara Dengan Metode Blotter Test
Authors: Hanif Andini , Susanti Rini
Published: December 2019

Salah satu faktor utama penyebab penurunan produksi jagung adanya serangan OPT (Organisme Penganggu Tanaman) baik itu hama maupun penyakit yang disebabkan oleh mikrooragnisme terutama cendawan patogen. Cendawan patogen dapat menginfeksi langsung tanaman jagung ataupun menginfeksi benih jagung. Cendawan patogen yang terbawa pada benih dapat mengubah bentuk dan warna benih, hilangnya daya kecambah dan vigor benih, selain itu cendawan patogen yang terbawa pada benih yang tumbuh berpotensi menyebabkan penyakit pada saat perkecambahan atau tanaman dewasa, sehingga tanaman menjadi sakit dan mengurangi hasil produksi. Penelitian ini menggunakan metode standar ISTA (International Seed Testing Association). Isolasi cendawan patogen terbawa benih dilakukan dengan metode blotter test yaitu menginkubasi benih di atas kertas saring lembab, selanjutnya cendawan patogen yang muncul didentifikasi. Cendawan patogen yang diperoleh diuji patogenisitasnya terhadap benih jagung. Hasil deteksi dan identifikasi cendawan pathogen terbawa benih jagung lokal diperoleh cendawan Fusarium sp. yang paling tinggi persentasenya menginfeksi benih jagung varietas lokal asal Sumatera Utara yaitu sebesar 78,75% untuk benih jagung varietas lokal asal Deli serdang, 14,5% untuk benih jagung varietas lokal asal Langkat dan 59,5% untuk benih jagung varietas lokal asal Karo.
Seed viability and growth of Salak seedling (Salacca edulis Reinw) due to the different concentration and soaking time of gibberellin (GA3)
Authors: Kartikasari Sindi , Anwar Syaiful , Kusmiyati Florentina
Published: December 2019

Hard bark seeds are one of the causes of long seed dormancy. The solution of salacca seed dormancy is done by soaking the seeds using gibberellin. The aim of this research to examine the effect of different concentration and soaking time of gibberellin on seed viability and growth of salak seedling. The research was conducted on May – July 2019 in Green House of Food Plant and Horticultural Protection Center, Central Java. The study used a Completely Randomized Design (CRD) 4 x 4 with 3 replications, each replications using 5 seeds. The first factor was concentration of gibberellin (G0: 0 ppm, G1: 20 ppm, G2: 40 ppm, G3: 60 ppm). The second factor was soaking time of gibberellin (S0: 10 minutes, S1: 25 minutes, S2: 40 minutes, S3: 55 minutes). Data were analyzed by variance and proceeded with Duncan Multiple Range Test (DMRT) at level 5% and orthogonal polynomial test. The observed variables were percentage of germination, maximum growth potential, seedling height, number of leaves, and root length. The results showed that the highest of percentage germination, maximum growth potential, and seedling height were observed in the 60 ppm of gibberellin concentration. The highest of percentage germination, maximum growth potential, and seedling height were researched in the soaking time 55 minutes. The highest root length was observed in the treatment of 60 ppm of GA3 and soaking time 55 minutes.
Identifikasi kromosom hasil cangkok anakan salak Sidempuan (Salacca sumatrana Becc.) di Kecamatan Angkola Barat
Authors: Friska Meiliana
Published: December 2019

Salak Sidimpuan (Salacca sumatrana Becc.) is one of the superior commodities in SouthTapanuli Regency. The availability of good quality zalacca varieties, high productivity,resistance to pests and diseases and tolerance to environmental stress are conditions that mustbe met in the era of agricultural industrialization. For this reason, it is necessary to assemblenew superior salacca cultivars to meet the evolving demands of consumers and to anticipatepotential cultivation constraints. Zalacca chromosome analysis is expected to be able toproduce information about the chromosome composition of these plants, which can then beuseful in supporting zalacca breeding. The aim of this study was to obtain the identity of theSalacca Sumatrana Becc. The plant-based on the morphological characteristics ofchromosomes (number, shape, and karyotype of chromosomes). This research was conductedat the Laboratory of Genetics, Faculty of Biology, University of North Sumatra, Medan inApril-May 2019. The results of this study indicate that Salak Sidempuan (Salacca sumatranaBecc.) have the number of chromosomes is 2n = 28, the shape of the chromosome and thekaryotype formula was 2n = 9m + 5 sm (9 metacentric chromosomes and 5 submetacentricchromosomes)
Laboratorijsko određivanje dinamičkih parametara jednostavne grede OMA metodom
Authors: Franković Tomislav , Paparić Katarina , Štimac Grandić Ivana
Published: December 2019

U radu je prikazana provedba dinamičkog ispitivanja čelične grede poprečnog presjeka 30 x 50 x 3,2 mm ukupne duljine 3,0 m s ciljem utvrđivanja njezinih dinamičkih parametara (frekvencija, modalnih oblika i vrijednosti prigušenja) uporabom operativne modalne analize. Glavna prednost operativne modalne analize u odnosu na eksperimentalnu modalnu analizu je mogućnost određivanja modalnih parametara ispitnog objekta bez poznavanja pobude. Pobuda se nanosila u jednoj točki grede, a dinamički odziv grede na nanesenu pobudu mjeren je pomoću jednoosnih akcelerometara osjetljivosti 100 mV/g čiji je broj i razmještaj variran tijekom provedbe ispitivanja. Prikupljanje izmjerenih podataka i njihova analiza napravljena je pomoću programskog paketa za analizu vibracija ModalVIEW. Pri određenim mjerenjima korištena je mogućnost zadavanja interpolacijskih točaka između mjernih točaka (točke u kojima se nalaze akcelerometri). Analizom odziva grede na pobudu dobivene su frekvencije fi, modalni oblici i modalna prigušenja ξi. Ispitivanjem su frekvencije i modalni oblici uspoređeni s frekvencijama i modalnim oblicima izračunatim na numeričkom modelu kojim je uvriježeno modelirati ispitani sustav.
Determining Fracture Resistance of Structural Adhesives in Mode-I Debonding Using Double Cantilever Beam Test
Authors: Hlača Ivan , Grbac Marin , Škec Leo
Published: December 2019

Double cantilever beam (DCB) test is the most commonly used test for determining the fracture resistance of structural adhesive joints in mode-I debonding. Test specimens are composed of two equal plates that are glued together, and then exposed to the opening load causing crack propagation along the bonded surface. During the experiment, loadline displacement, applied force and crack length are measured continuously. Using these data, the fracture toughness of the adhesive can be computed by the procedure given in the relevant ISO standard (BS ISO 25217:2009). The calculations are based on simple beam theory and linear elastic fracture mechanics (LEFM) equations. In this paper, we will present the standard method for performing a DCB test and the method for data processing required to obtain the adhesive fracture toughness, i.e. the critical energy release rate. Experiments are performed for SikaPower® 4720 adhesive, applied with controlled thickness between the aluminium plates (adherends). After the curing period recommended by the adhesive manufacturer, DCB specimens with piano hinges are loaded by a tensile-testing machine. Loading is applied in the displacement-control mode because when the crack starts to propagate, the applied load drops. Using the optical measurement system GOM Aramis, complete displacement field is recorded during the experiment. Displacement field is then used to obtain the actual load-line displacement of the adherends (different than the one recorded on the tensile-testing machine grips) and the position of the crack tip. After syncing the measurements from different devices, fracture toughness for the adhesive is determined and a statistical analysis performed.
Prostorna percepcija u inženjerskom obrazovanju
Authors: Pletenac Lidija , Jurić Maura
Published: December 2019

Sposobnost prostorne percepcije, neophodnu u STEM1 području, pratimo kod naših studenata i prilagođavamo oblike rada potrebama studenta. Digitalizirali smo testove MRT i MCT te uveli multimedijalne nastavne materijale u e-kolegije. Slaba prostorna percepcija glavni je uzrok poteškoća pri rješavanju zadataka u prostoru na svim tehničkim kolegijima, posebno na geometrijskim. Prostorna percepcija razvija se vježbom. Rad analizira ovaj problem, daje prikaz rezultata ispitivanja (MRT i MCT) i primjene digitalnih nastavnih materijala. Analiza rezultata pokazuje poboljšanje kroz semestar.
Integralni pristup upravljanju geohazardima na području kontakta fliša i krša
Authors: Štajdohar Sandra , Dugonjić Jovančević Sanja
Published: December 2019

Na kontaktu flišne stijenske mase i vapnenaca, unutar područja središnje i sjeverne Istre te zaleđa Kvarnera evidentirani su brojni geohazardni događaji, a najznačajniji od njih su pojave nestabilnosti. U radu je dan pregled značajki područja istraživanja ključnih za pojavu ovog tipa geohazarda. Napravljen je pregled recentnih nestabilnosti i njihovih posljedica kako bi se pokazala motivacija za istraživanje, a i potreba za razvojem cjelovitog sustava upravljanja postojećim problemom. Kroz istraživanje je razvijen koncept integralnog pristupa upravljanju geohazardima, a predloženi okvir mogao bi se kroz različite mehanizme integrirati u sadašnji način funkcioniranja i smanjenje posljedica za postojeće elemente rizika. Predloženi pristup zahtijeva opsežne i mnogobrojne analize, ali određeni elementi mogli bi se implementirati bez većih zahtjeva.
Determination of Uniaxial Compressive Strength of Limestone
Authors: Vračević Doris , Dugonjić Jovančević Sanja , Peranić Josip , Hodanić Marko
Published: December 2019

The most used parameter in rock engineering practice is the Uniaxial Compressive Strength (UCS). It is often estimated on the field or trough Index-to-strength conversion factors proposed by various researchers for a specific rock type. The research presented in the paper involved field estimation of Uniaxial Compressive Strength using Schmidt rebound hammer and Point Load laboratory testing on limestone rock samples. The results of the estimated UCS were compared to the Uniaxial Compression Strength laboratory testing results on limestone specimens taken from the same location, in order to compare corresponding UCS of limestone rocks. These results can contribute to better estimation of the local design parameters, when direct determination of the UCS in the laboratory is not possible, rather than adopting the values from around the world case studies.
Podrijetlo vode i njeno značenje na planeti Zemlji
Authors: Žic Elvis , Vasović Dejan
Published: December 2019

U radu je dan opis podrijetla vode na planeti Zemlji i njezino značenje u prošlosti i sadašnjosti. Analizirani su razmjeri kretanja vode na zemlji, njihove značajke, kao i glavni izvori dostupne vode na zemlji izraženi kroz postotni udio na globalnoj razini. Također je razmatran nastanak vode u Svemiru i proizvodnja kisika u ranoj fazi nastanka planeta. Fokus rada bazira se na održanju kvalitete vode dostupne na Zemlji te pojavi globalne varijabilnosti intenziteta oborina koje u zadnjih nekoliko desetljeća mijenjaju značajke velikih svjetskih površina kroz procese velikih suša i poplava. Kroz rad su opisani neki od najznačajnijih primjera eksploatacije pitkih voda u svijetu kroz površinske i podzemne rezerve vode. Analizirane su mogućnosti povećanja proizvodnje hrane za ljudske potrebe u pogledu povećanja zemljišta kroz tehnološki napredne metode te zaštita vodnih resursa uslijed klimatskih promjena. Dan je osvrt na značajke kvalitete prirodne vode u medicini i industriji, poboljšanje sanitarnih uvjeta, utjecaj ljudskog zagađenje na globalnoj razini, gospodarski rast i problem smanjenja vode, kao i globalni problem ispuštanja nepročišćenih otpadnih voda u recipijente i, posljedično, ugrožavanje flore i faune.
E-MARKETING ROLE IN MEDIATING EFFECT OF ORGANIZATIONAL SUPPORT , TECHNOLOGY COMPETENCE, EXTERNAL ENVIRONMENT OF BUSINESS PERFORMANCE ON SMALL & MEDIUM ENTERPRISES (SMEs) IN KENDARI CITY
Authors: Hapsari Indri
Published: December 2019

Business through the Internet provides a great opportunity and a marketing strategy that is becoming a phenomenon is an e-marketing is a very fast development to achieve the service to consumers but has a number of complex challenges that need to support organizational, technological competence, the external environment will affect the performance of the business Small and Medium Enterprises in Kendari. The development and growth of e-marketing influence on the business have seen and felt by the public as well as principals of. The purpose of this study to analyze the role of e-marketing in mediating effect of organizational support, technology competence, the external environment of the Small and Medium Enterprise business performance in Kendari. This research was conducted on the perpetrators of Small and Medium Enterprises in Kendari many as 45 respondents using the nonprobability method of sampling through purposive sampling technique. Data were collected by questionnaires. The analysis technique used is Partial Least Square (PLS). Based on the analysis found Organizational Support direct effect on e-marketing. Furthermore, e-marketing directly affects the business performance of Small and Medium Enterprises (SMEs) in Kendari. The results of this study also prove that there is significant Organizational Support indirectly through e-marketing to business performance Small and Medium Enterprises (SMEs) in Kendari. While Technology Competence and External Environment show that there is no influence either directly or indirectly through e-marketing as a mediation on the Performance of Small and Medium Business in the City of Kendari.
FLIPPED CLASSROOM IN LANGUAGE STUDIES: A CONTENT ANALYSIS OF RECENT ARTICLES
Authors: Ahmed Hana Dler , Asiksoy Gulsum
Published: December 2019

The concept of the flipped or inverted classroom has become a growing technological advancement in the field of instructional education. It is a growing instructional approach, also known as a pedagogical approach in which the standard, or the conventional pattern of classroom is altered. The traditional and commonly known approach is reversed by providing the instructional contents to the students outside the boundaries of the classroom. The actual classroom is replaced by videos of course contents to be watched at home by students while the students converge in the classroom for activities that help ingrain the learnt concepts. Lately, quite a lot of studies have been conducted on the flipped classroom in different subjects of study. In this research, we will evaluate the significance of the flipped classroom based on its application to language studies and learning. A total of 20 papers were carefully selected from this field and thoroughly examined for the purpose of the research. It was concluded that the flipped classroom has gained major significance in several fields of study including hands-on fields like medicine, nursing and engineering. This research is a comprehensive pilot to instructors and researchers alike in the quickly growing field of flipped classroom.

Keywords: flipped classroom, inverted classroom technology, education, content-analysis
USE OF COMPUTERS IN SPECIAL EDUCATION: BENEFITS AND OUTCOMES
Authors: Baglama Basak , Yucesoy Yucehan , Demirok Mukaddes Sakalli
Published: December 2019

Use of computers as effective technological tools in special education has become prevalent in the recent years since it enhances teaching concepts and skills and increase permanence and generalization of learned concepts and skills. Identifying the current situation and trends in a specific field provides a comprehensive perspective for researchers and practitioners. This study aims to examine the current situation and trends in the studies on special education and computer through content analysis. Scopus database was examined in the study in order to carry out the content analysis. Articles published in Scopus database were examined based on certain criteria including year of publication, name of the journals, document type, country and subject area. Data were analyzed based on content analysis method. Results are discussed with reference to relevant literature and implications for further research and practices are also provided
Kinetic Model of Crude Palm Oil Hydrocracking Over Ni/Mo ZrO2–Pillared Bentonite Catalyst
Authors: Hasanudin Hasanudin , Rachmat Addy , Said Muhammad , Wijaya Karna
Published: December 2019

Crude Palm Oil hydrocrcaking has been carried out over Ni/Mo ZrO2–pillared bentonite catalyst in a fixed bed reactor. Crude Palm Oil hydrocracking over Ni/Mo ZrO2–pillared bentonite catalyst formed 3 products i.e. gas, oil and coke. The oil product from Crude Palm Oil hydrocracking was analyzed by using gas chromatography to determine its composition. Three types of fraction were classified i.e. gasoline, kerosene and diesel oil. In this research, the focused of the study is of hydrocracking kinetics by using lump kinetic models. The kinetic model was solved by using the software MATLAB R2018b involves the effect of catalyst activity on the reaction rate. The results of the kinetic study show that the 4-lump (Crude Palm Oil, gas coke and oil) and 6-lump reaction models (Crude Palm Oil, gas, coke, gasoline, kerosene and diesel) can be used to explain the Crude Palm Oil hydrocracking over Ni/Mo ZrO2–pillared bentonite catalyst. The 4-lump kinetic model has 5 rate constants and the 6-lump kinetic model has 14 rate constants.
Investigation of Organic Matter Content of Hungarian Oil Shale and Its Influence on Sorption of 2,4-Dichlorophenol
Authors: Rauch Renata , Foldenyi Rita
Published: December 2019

It is not only Total Organic Carbon content (TOC) but also the type of Organic Matter (OM) that the sorption of organic pollutants by soils or other natural absorbents is correlated with. Therefore, the characterization of organic components in the adsorbents is very important to elucidate sorption mechanisms.Oil shale samples were collected in Pula, Hungary. The TOC content of the investigated samples was approximately 6.8-40.1 m/m %. The characterization of the organic matter in samples was carried out by using Scanning Electron Microscopy (SEM), elemental analysis, thermal analysis, and GC-MS technics. The results predominantly indicated the presence of a low degree of the branching of aliphatic chain components in the samples. The Humic Substances (HS) content of the samples was only 1-6 m/m %, which could be determined after the treatment of oil shale with hydrogen peroxide.The influence of the amount and type of organic material in oil shale samples was studied on the adsorption of 2,4-dichlorophenol (2,4-DCP) as a model contaminant. For this aim a series of batch equilibration experiments was carried out. The results show that the total organic carbon content of samples is a strong indicator of 2,4-DCP adsorption, while the HS content is an important feature controlling sorption capacity. The study suggests that the special organic matter (kerogen) content of the oil shale plays a major role in its high adsorption capacity and in the nonlinearity of the isotherms. The HS covering the surface could decrease the sorption capacities despite the fact that though the amount of this organic material is quite low.
Вплив Іфітинібу на складові хроматину та стан антиоксидантної системи в карциномі Герена та незмінених тканинах матки
Authors: Бондаренко Л. Б. , Карацуба Т. А. , Хавич О. О. , Шаяхметова Г. М. , Шарикіна Н. І. , Коваленко В. М. , Стратійчук Р. О. , Коновалов А. А. , Калачінська М. М.
Published: December 2019

Неспецифічна дія протипухлинної хіміотерапії на прилеглі до пухлини тканини сама по собі здатна погіршити стан організму додатково до наслідків розвитку неопластичного процесу і навіть справити вирішальну роль у виживанні організму. Тому актуальним є проведення паралельних досліджень впливу нових протипухлинних засобів на етапі доклінічних випробувань як на пухлини, так і на тканини того самого організму, які неуражені неопластичним процесом, для подальшої оптимізації хіміотерапії. Мета дослідження – вивчити вплив Іфітинібу на ДНК, РНК, білки хроматину, процеси фрагментації ДНК, вміст небілкових і пов’язаних з білками SH-груп у карциномі Герена та незмінених тканинах матки. Дослідження впливу Іфітинібу проводили на білих щурах-самицях лінії Вістар. Тварини були розподілені за методом рандомізації на 3 групи по 6 тварин у кожній: 1 – інтактні щури, 2 – негативний контроль (карцинома Герена), 3 – карцинома Герена + 29,93 мг/кг Іфітинібу. Вивчення впливу Іфітинібу на ДНК, РНК, білки хроматину, процеси фрагментації ДНК, вміст небілкових і пов’язаних з білками SH-груп у карциномі Герена та незмінених тканинах матки показало, що даний препарат вірогідно змінював більшість досліджуваних показників як порівняно з інтактними тваринами, так і з карциномою Герена без лікування. Специфічність впливу Іфітинібу на клітини пухлин була найвираженішою у випадку ДНК-фрагментації та змін вмісту небілкових і пов’язаних з білками SH-груп.
Peningkatan Kualitas Hidup Pasien Kanker Payudara Melalui Program BESTCARE (Breast Cancer Wound and Palliative Care)
Authors: Endah Janitra Fitria , Wijayanti Kurnia , Wahyuningsih Indah Sri , Apriyanti Hani Werdi
Published: December 2019

The incidence of breast cancer increase every year, if didn’t controlled by the WHO estimates that there will be an increase of 30% and 70% in 2030. The patients often experience are complex problems such as the lack of self-confidence, pain in wounds and aesthetic problems. Postoperative patients or chemotherapy need proper care in order to achieve a good quality of life. The BESTCARE program aims to improve the quality of life of breast cancer patients through activities that can be carried out by cadres and patients. The methods was lectures, demonstrations and practices. While the media used are lectures, demonstrations, practices and wound care. The material presented includes the incidence of breast cancer, understanding, risk factors, conscious examination steps, wound care with modern dressing. Results: The team succeeded in forming a cancer care health, knowledge and understanding of the cadre of mam health increased from 50% to 85%, health cadres were able to make conscious movements from before 55% to 90%, an increase in the number of visits, decreased pain scale and wound care progress with modern dressing. Conclusion: The program of activities carried out by the Bestcare team was able to be carried out properly and as expected improving  the quality of life in palliative patients both  in the clinic or home visit.
Gıdalarda Aflatoksin Düzeylerinin Belirlenmesinde Kullanılan Analiz Yöntemleri
Authors: AÇU Merve , ÖZDESTAN OCAK Özgül
Published: December 2019

Aflatoksinler kuru meyveler, yağlı kuru meyveler, baharatlar, tahıllar, süt ve süt ürünleri ve hayvan yemlerinde yaygın olarak bulunabilen mikotoksinlerdendir. Aflatoksinler diğer mikotoksinler gibi, bu ürünlerde hasat öncesi tarlada, hasat zamanı veya hasat sonrası uygun olmayan depo koşullarında toksin üreten fungusların gelişmesiyle ortaya çıkmaktadırlar. Ayrıca işleme ve depolama gibi çeşitli aşamalarda da kontaminasyon riski söz konusudur ve bu durum oldukça sorun oluşturmaktadır. Aflatoksinlerin karaciğer hastalıkları (hepatatoksik, hepatokarsinojenik), kanserojen ve teratojenik etkiler, kanamalar (bağırsaklar, böbrekler), bağışıklık sistemine baskı gibi sağlık üzerine olumsuz etkileri bulunmaktadır. Gıda ve yemlerde bulunan aflatoksinlerin belirlenmesinde kullanılan birçok metot vardır. Aflatoksin analizlerinde ince tabaka kromatografisi, kapiler elektroforez, ELISA, yüksek basınçlı sıvı kromatografisi, gaz kromatografisi ve kromatografik metotların kütle spektroskopisi ile birlikte kullanımı gibi metotlar kullanılmaktadır. Kromatografik metotların kütle spektroskopisi ile birlikte kullanımı ile daha düşük ölçüm limitlerine ulaşılabilmektedir. Bu nedenle son zamanlarda bu yöntemler ön plana çıkmaktadır. Bu derlemede gıdalarda aflatoksinlerin belirlenmesinde kullanılan analiz yöntemleri ve bu yöntemler ile ilgili son gelişmeler üzerinde durulacaktır.
A New Generalization of Injective Modules
Authors: ÖZTÜRK SÖZEN Esra
Published: December 2019

In this paper, as a generalization of injective modules, we define two different modules: modules that have the property (δ-SE) and modules that have the property (δ-SSE), and we investigate basic properties of them. Namely, modules that have a δ-supplement that is a direct summand in its every extension and modules that have a strong δ-supplement in its every extension are tackled here. Particularly, it is proved that a ring whose modules have the property (δ-SE) is δ-semiperfect. Let R be a ring, M be an R-module with IM=0  for an ideal of R. It is shown that if the R-module M has the property (δ-SE), then so does ¯R-module M, under a special condition, where ¯R=R/I. Finally we supply an example showing that a module that has the property (δ-SE) may not have the property (δ-SSE).
Algoritma Apriori untuk Pencarian Frequent itemset dalam Association Rule Mining
Authors: Prahartiwi Lusa Indah , Dari Wulan
Published: December 2019

Abstract

 

Over decades, retail chains and department stores have been selling their products without using the transactional data generated by their sales as a source of knowledge. Abundant data availability, the need for information (or knowledge) as a support for decision making to create business solutions, and infrastructure support in the field of information technology are the embryos of the birth of data mining technology. Association rule mining is a data mining method used to extract useful patterns between data items. In this research, the Apriori algorithm was applied to find frequent itemset in association rule mining. Data processing using Tanagra tools. The dataset used was the Supermarket dataset consisting of 12 attributes and 108.131 transaction. The experimental results obtained by association rules or rules from the combination of item-sets beer wine spirit-frozen foods and snack foods as a Frequent itemset with a support value of 15.489% and a confidence value of 83.719%. Lift ratio value obtained was 2.47766 which means that there were some benefits from the association rule or rules.

 

Keywords: Apriori, Association Rule Mining.

 

Abstrak

 

Selama beberapa dekade rantai ritel dan department store telah menjual produk mereka tanpa menggunakan data transaksional yang dihasilkan oleh penjualan mereka sebagai sumber pengetahuan. Ketersediaan data yang melimpah, kebutuhan akan informasi (atau pengetahuan) sebagai pendukung pengambilan keputusan untuk membuat solusi bisnis, dan dukungan infrastruktur di bidang teknologi informasi merupakan cikal-bakal dari lahirnya teknologi data mining. Data mining menemukan pola yang menarik dari database seperti association rule, correlations, sequences, classifier dan masih banyak lagi yang mana association rule adalah salah satu masalah yang paling popular. Association rule mining merupakan metode data mining yang digunakan untuk mengekstrasi pola yang bermanfaat di antara data barang. Pada penelitian ini diterapkan algoritma Apriori untuk pencarian frequent itemset dalam association rule mining. Pengolahan data menggunakan tools Tanagra. Dataset yang digunakan adalah dataset Supermarket yang terdiri dari 12 atribut dan 108.131 transaksi. Hasil eksperimen diperoleh aturan asosiasi atau rules dari kombinasi itemsets beer wine spirit-frozen foods dan snack foods sebagai Frequent itemset dengan nilai support sebesar 15,489% dan nilai confidence sebesar 83,719%. Nilai Lift ratio yang diperoleh sebesar 2,47766 yang artinya terdapat manfaat dari aturan asosiasi atau rules tersebut.

 

Kata kunci: Apriori, Association rule mining
Perencanaan Strategis dan Pemodelan Obyek dalam Mengembangkan Sistem Chatbot
Authors: Kusumawati Arie , Susanty Yunisa
Published: December 2019

Abstract

Information technology and the Internet (Internet of Things) today have been implemented in all aspects of life. This seems to be in line with the growing public interest in e-commerce. The e-commerce growth can be used as a competitive advantage of an organization. The company currently has a chatbot product which is a combination of chat and e-commerce in one application. Chatbot is a computer application which is designed to understand text and audio that can interact with humans. XYZ company currently requires business strategy planning to gain a broader market share of their products. In addition, the latest chatbot design can attract customers’ interest in chatbots use of XYZ company. The analysis was carried out by using Strength, Weakness, Opportunity, and Treats (SWOT) analysis and Unified Modeling Language (UML) to analyze and design the new chatbot. The results obtained a new proposed business processes and analysis as well as new chatbot system design of XYZ company.

 

 

Keywords: chatbot, business process, SWOT, UML, Fishbone

 

 

Abstrak

 

Teknologi informasi dan internet dewasa telah ini dimanfaatkan diseluruh aspek kehidupan. Hal ini nampaknya sejalan dengan bertumbuhnya minat masyarakat terhadap e-commerce. Pertumbuhan e-commerce yang terus mengalami peningkatan, dapat dijadikan suatu peluang yang telah dilihat oleh PT. XYZ. Saat ini perusahaan memiliki produk chatbot yang merupakan gabungan antara chat dan e-commerce dalam satu aplikasi. Chatbot adalah komputer yang telah dirancang khusus untuk memahami teks maupun audio dan dapat berinteraksi dengan manusia. PT XYZ saat ini membutuhkan perencanaan strategi bisnis yang dapat dipergunakan untuk mendapatkan pangsa pasar yang luas terhadap produk mereka dan juga perancangan chatbot yang terbaru sehingga pelanggan tertarik menggunakan chatbot dari PT XYZ. Analisis dilakukan dengan memanfaatkan SWOT analsisi dan UML untuk menganalisis serta perancangan chatbot terbaru. Hasil yang didapatkan adalah proses bisnis dan analisis serta perancanggan sistem chatbot terbaru PT.XYZ.

 

 

Kata kunci: chatbot, proses bisnis, SWOT, UML, Fishbone
PENERAPAN LAYANAN BIMBINGAN KELOMPOK UNTUK MENINGKATKAN PERENCANAAN STUDI LANJUT PADA SISWA
Authors: Yulihastuti Nur Khixmah
Published: December 2019

ENGLISHThis Classroom Action Research is triggered by the existence of students from Public High School 2 in Pati who did not continue their education to higher education due to social problems that became obstacles for them in planning further studies. The purpose of this study was to improve further study planning in class XII IPA, Public High School 2 in Pati in  the Academic Year conducted in two cycles, each cycle consisting of two meetings. In each cycle includes several stages:  the formation stage, the transitional stage, the activity stage and the termination stage. The results of the study showed that there was an increase for students in their advanced study planning. This can be found that  in the initial conditions  of students experiencing social problems are 10 children, it became 5 children in cycle 1 and in cycle 2 as many as 0 children. The percentage increase in advanced study planning from 74.36% to 100%. The conclusion that the effectiveness of group guidance services with successful educational alumni modeling approach is able to improve advanced study planning. INDONESIABeberapa siswa SMA Negeri 2 Pati mengalami problem sosial sehingga menghalangi mereka dalam perencanaan studi lanjut ke perguruan tinggi. Tujuan penelitian ini adalah untuk meningkatkan perencanaan studi lanjut pada kelas XII IPA 3 SMA Negeri 2 Pati tahun ajaran 2019/2020. Penelitian dilakukan dalam dua siklus, setiap siklus terdiri dari 2 pertemuan. Tiap siklus meliputi beberapa tahap, antara lain: tahap pembentukan, peralihan, kegiatan, dan tahap pengakhiran. Hasil penelitian menunjukkan peningkatan siswa dalam perencanaan studi lanjut. Hal ini dapat dilihat  pada kondisi awal siswa yang mengalami problem sosial sebanyak 10 siswa, pada siklus 1 sebanyak 5 siswa dan pada siklus 2 sebanyak 0 siswa. Persentase peningkatan perencanaan studi lanjut dari 74,36% hingga 100%. Kesimpulannya bahwa efektivitas layanan bimbingan kelompok dengan pendekatan modeling alumni sukses pendidikan mampu meningkatkan perencanaan studi lanjut.
PENGAMBILAN KEPUTUSAN MENJADI PEKERJA MIGRAN INDONESIA PEREMPUAN
Authors: Aeni Nurul
Published: December 2019

ENGLISHDecision of being woman migrant workers brings both positive and negative consequeces for the woman workers as well as their families live behind. This study aimed: (1) to describe the decision making of being migrant workers among the applicants of woman migrant workers from Pati District; (2) to explain the factors correlate to the migrate decision making, and (3) to explain factors correlate to destination country choosing. It used quantitave approach. The primary data were obtained by spreading questionnaires among women migrant worker applicants at four labour supply companies. Meanwhile the secondary data get through desk review. Then, the data were analysed descriptively using chi square and correspondence analysis. The study resulted: (1) economic was the main factor of decision making for being woman migrant workers; (2) the factors correlated to the decision making for being woman migrant workers were the position in household, previous income, and decision making process; (3) high salary was the main factor on choosing the destination country. The factors correlated to destination country preferences were: the reasons for choosing the destination countries, age, previous job, previous salary, and husband’s age. INDONESIAKeputusan menjadi pekerja migran perempuan dapat berkonsekuensi positif maupun negatif bagi pekerja migran maupun keluarga yang ditinggalkan. Penelitian ini bertujuan: (1) menggambarkan pengambilan keputusan menjadi pekerja migran perempuan pada calon pekerja migran di Kabupaten Pati; (2) mendeskripsikan faktor yang berhubungan dengan pengambilan keputusan; dan (3) mendeskripsikan faktor yang berhubungan dengan pemilihan negara tujuan. Penelitian menggunakan pendekatan kuantitatif. Data primer didapatkan melalui pengisian kuesioner oleh para calon pekerja migran perempuan di empat PPTKIS. Sementara data sekunder didapatkan melalui review penelitian terdahulu dan dokumen yang relevan. Data yang diperoleh dianalisis secara deskriptif menggunakan chi square dan analisis korespondensi. Hasil penelitian adalah: (1) ekonomi adalah faktor utama pengambilan keputusan menjadi pekerja migran perempuan; (2) faktor yang berhubungan dengan pengambilan keputusan menjadi pekerja migran adalah posisi dalam rumah tangga, pendapatan sebelumnya, dan proses pengambilan keputusan; (3) gaji yang tinggi merupakan alasan utama pemilihan negara tujuan migrasi. Adapun faktor yang berhubungan dengan pemilihan negara tujuan migrasi adalah alasan pemilihan negara, usia, pekerjaan sebelumnya, pendapatan sebelumnya, dan usia suami.
Profilometry. Using Corneo-scleral topography for scleral lens fitting
Authors: DeNaeyer Gregory
Published: December 2019

The world-wide use of scleral contact lenses has dramatically increased over the past 10 year and has changed the way that we manage patients with corneal irregularity. Successfully fitting them can be challenging especially for eyes that have significant asymmetries of the cornea or sclera. The future of scleral lens fitting is utilizing corneo-scleral topography to accurately measure the anterior ocular surface and then using software to design lenses that identically match the scleral surface and evenly vault the cornea. This process allows the practitioner to efficiently fit a customized scleral lens that successfully provides the patient with comfortable wear and improved vision.