bluuebunny/crossref_metadata_2025 huggingface dataset:
Kontribusi Sektor Kehutanan Terhadap Pembangunan Daerah Provinsi Kalimantan Selatan (Pendekatan Perhitungan PDRB Hijau)
Authors: Nur Muhammad Anshar
Published: April 2019

Penelitian ini bertujuan untuk mengetahui dan menganalisis kontribusi sektor kehutanan terhadap pembangunan daerah provinsi Kalimantan Selatan tahun 2012 – 2016 dengan menggunakan pendekatan perhitungan PDRB Hijau. Penelitian menggunakan metode diskriptif dengan pengolahan data secara kuantitatif terhadap data sekunder yang didukung data primer melalui perhitungan nilai unit rent, deplesi, degradasi dan penyusutan dari kegiatan pemanenan kayu bulat pada hutan alam dan hutan tanaman. Hasil penelitian menunjukkan nilai unit rent, deplesi, degradasi dan penyusutan per satuan produksi pada hutan alam relatif jauh lebih besar dibanding hutan tanaman. Nilai tersebut sekitar 81 % pada hutan alam dan 19 % pada hutan tanaman, sehingga diperlukan intensifikasi pengelolaan hutan tanaman untuk penyediaan kayu bulat sekaligus sebagai upaya mengurangi tekanan terhadap hutan alam di Kalimantan Selatan. Kontribusi hijau sektor kehutanan terhadap pembangunan daerah lebih kecil atau berkurang dibanding kontribusi sektor kehutanan dalam perhitungan PDRB konvensional, yang berarti provinsi Kalimantan Selatan telah mengorbankan aset (modal alami) dari penyusutan sumber daya hutan yang belum diperhitungkan sebagai nilai tambah sektor kehutanan dalam perhitungan PDRB konvensional. Besar nilai penerimaan sektor kehutanan sebagai nilai kompensasi dan insentif dari nilai penyusutan sumber daya hutan dan lingkungan relatif sangat kecil dibanding nilai yang diperlukan untuk pencegahan dan pemulihannya.  Kontribusi (nilai tambah) riil sektor kehutanan terhadap pembangunan daerah provinsi Kalimantan Selatan dengan memasukkan nilai penyusutan sumber daya hutan sekitar 119 % dari PDRB yang tercantum dalam PDRB konvensional.
 
Kata Kunci : PDRB Hijau, Sektor Kehutanan, Pemanenan Kayu Bulat, Hutan Alam, Hutan Tanaman
ANALISIS FAKTOR - FAKTOR YANG MEMPENGARUHI PERMINTAAN UANG DI INDONESIA PERIODE 2001-2015 DENGAN PENDEKATAN ERROR CORRECTION MODEL (ECM)
Authors: Mukhtar Saparuddin
Published: April 2019

Penelitian ini bertujuan untu mengetahui pengaruh inflasi, produk domestik bruto, dan suku bunga terhadap permintaan uang di Indonesia.
Untuk menganalisa faktor-faktor yang mempengaruhi permintaan uang di Indonesia menggunakan Error Correction Model.
Berdasaran hasil analisis data menunjukan bahwa Hasil estimasi dalam jangka pendek variabel inflasi berpengaruh positif dan signifikan terhadap permintaan uang. Sehingga perubahan inflasi 1% akan menyebabkan perubahan permintaan uang sebesar 0,2504%. Variabel suku bunga berpengaruh negatif dan tidak signifikan terhadap permintaan uang. Sama halnya variabel PDB yang juga tidak berpengaruh signifikan terhadap permintaan uang. Dalam jangka panjang variabel inflasi bepengaruh positif dan signifikan terhadap permintaan uang. Perubahan yang terjadi pada variabel inflasi sebesar 1% akan mengakibatkan kenaikan permintaan uang sebesar 0,3276%. Variabel suku bunga berpengaruh negatif dan signifikan dimana setiap perubahan suku bunga sebesar 1% akan berdampak pada perubahan permintaan uang sebesar 2,8632%. Dan untuk variabel PDB berpengaruh signifikan juga terhadap permintaan uang, dimana setiap perubahan PDB sebesar 1% akan berdampak pula terhadap permintaan uang sebesar 1,4285%.
Keywords : Money demand, inflation, GDP, Interest Rate
Numerical Study of Fusion Cross Sections for 12C+12C and 16O+16O Reactions by Using Wong Formula
Authors: Yulianto Yacobus , Zu'ud Zaki
Published: April 2019

The height of the barrier between the interacting nuclei is one of the interesting topics in nuclear reaction, especially in charged-particle nuclear reactions. Wong formula is one method that can be used to perform such study, especially about fusion cross section. Therefore, a study about fusion cross sections of some light nuclei with Wong formula becomes very interesting to be performed. In this study, the fusion cross sections of 12C+12C and 16O+16O reactions have been calculated by using Wong formula at 12<=E<=32 MeV of energies. The potential of the interacting nuclei was approached by using Woods-Saxon potential. The calculations performed numerically by using both finite different and Nelder-Mead methods. The obtained results of this study have achieved a good agreement with the experimental results and the calculation results of the other researchers. Those results were indicated that Wong formula has good capability in explaining the experimental results concerning fusion cross section of light nuclei.
Analisis Perbedaan Luas Permukaaan Pelet Adsorben dari Abu Layang yang Terikat Silang Glutaraldehyd
Authors: Syauqiah Isna , Utami Umi Baroroh Lili , Yusniar Meina Wulansari
Published: April 2019

Karakterisasi pori dari pellet komposit abu layang dan kitosan sebagai adsorben telah dilakukan. Komposit adsorben dibuat dengan campuran abu layang dan kitosan yang diikat silang menggunakan glutaraldehyd dengan perbandingan setiap 2 g, 3 g dan 4 g abu layang dalam 20 mL larutan kitosan yang sudah dilarutkan dalam larutan 5% asam oksalat. Karakterisasi adsorben dilakukan menggunakan Gas Sorption Analyzer untuk mengetahui karakter pori dari abu layang, kitosan dan adsorben komposit. Dari hasil penelitian diperoleh bahwa adsorben dengan abu layang sebanyak 3 g dalam 20 mL larutan kitosan memiliki luas permukaan dan volume total pori terbesar yaitu 31,00 m2/g dan 4,54 (e-02 cc/g) dan rerata jari pori terkecil yaitu 29,30 Å. Serta identifikasi gugus fungsi komposit abu layang-kitosan dari spektrofotometer inframerah menunjukkan adanya gugus fungsional untuk menyerap logam berat yang terlihat pada bilangan gelombang 3433 dan 2932 cm-1.
Sistem Pengendalian Suhu dan Kelembaban Kumbung Jamur Tiram secara Realtime Menggunakan Esp8266
Authors: Arafat Arafat , Puspitasari Desy Ika , Wagino Wagino
Published: April 2019

Oyster Mushroom is one of the high-value consumption mushrooms. The development of mushroom experienced rapid growth marked by the increasing number of farmers breeding mushroom is directly proportional to number of mushroom food business. The process of mushroom cultivation in mushroom’s greenhouse depends on physical factors such as temperature, humidity, light, pH of planting medium, and air aeration. Watering activity is done if the condition and humidity of mushroom's greenhouse was dry, three times a day at the morning, afternoon and evening. If the conditions of temperature and humidity fluctuate in the current seasons, it is not enough to be sprayed. High temperature and humidity fluctuations disturbed harvest. The results of this research are realtime temperature and humidity control system, esp8266 12-F and DHT22 sensor to read humidity value that can do watering and keep humidity greenhouse. The best humidity limit is 65% and maximum is 80%. If the humidity condition reaches 65%, then esp8266 will activate the relay to turn on the DC pump machine and nozzle spray. If humidity reached 80%, then esp8266 will turn off the DC pump. 80% humidity limit setting to avoid mushrooms from getting too wet. Humidity conditions monitored with android smartphone in realtime.
Pengaruh Penyaringan dan Pengeringan Terhadap Ukuran Partikel Oksida Besi: Tinjauan Karakterisasi Kualitatif Menggunakan Mikroskop Optik
Authors: Santoso Uripto Trisno , Rodiansono Rodiansono , Junaidi Ahmad Budi , Ariyanti Citra , Oktari Radhina , Nopitasari Puput , Hasanah Hasanah
Published: April 2019

Karakterisasi ukuran partikel menjadi salah satu parameter yang sangat penting dalam uji keberhasilan sintesis mikro- maupun nanomaterial. Walaupun secara teori sudah diketahui bahwa beberapa perlakuan fisika seperti proses penyaringan dan pengeringan dapat berpengaruh terhadap ukuran partikel sampel, tetapi perlakuan ini sering diabaikan sehubungan dengan beberapa teknik karakterisasi, misalnya SEM (scanning electron microscopy) mempersyaratkan sampelnya berbentuk serbuk kering.Penelitian ini bertujuanuntukmendapatkan data imiahtentang pengaruh penyaringan dan pengeringan terhadap ukuran partikel oksida besidengan karakterisasi secara kualitatif menggunakan mikroskop optik. Hasil penelitian menunjukkan bahwa proses penyaringan dan pengeringan dapat mempengaruhi ukuran partikel.
Analisis Kekeringan Menggunakan Metode Theory of Run pada Sub-sub DAS Riam Kanan Kalimantan Selatan
Authors: Munasipah Munasipah , Nurlina Nurlina , Ridwan Ichsan
Published: April 2019

The drought is a routine problem that occurs at several region in Indonesia. Due to the drought, water depletion in the Riam kanan watershed sub-district is very large. Several methods are used to find out and analyze the drought that occurs, one of them is the Theory of Run method. The Theory of Run method is a method to calculate the drought index in the form of the longest duration and the largest number of droughts with a certain return period in some area. The results showed that the longest duration of drought occurred in 2009, for 12 months with the largest number of cumulative droughts was 1125 mm. Based on the drought level distribution map, Aranio Subdistrict was the worst region of drought. In 1998-2002, 2003-2007, 2008-2012, and 2013-2017 the area of drought reached 88,918.62 ha, 90,873.6 ha, all of the Aranio Subdistrict regions , and 69,710.34 ha, respectively.
Sintesis dan Karakterisasi Silicon Carbide (SiC) dari Sekam Padi Menggunakan Metode Reduksi Magnesiotermik
Authors: Sulaeman Ahmad Sofyan , Arjo Sugianto , Maddu Akhiruddin
Published: April 2019

Silicon Carbide (SiC) merupakan material keramik non-oksida yang memiliki tingkat kekerasan, titik leleh, dan konduktivitas termal yang tinggi. SiC dapat disintesis menggunakan prekursor silika (SiO2) dan karbon (C) dengan memanfaatkan SiO2 sebagai sumber silikon (Si). SiC telah disintesis dari sekam padimenggunakan prekursor SiO2 dan C dengan metode reduksi magnesiotermik. Sintesis SiC dilakukan dengan mencampurkan SiO2 dan C pada perbandingan rasio 1:3, kemudian diberi penambahan magnesium (Mg) dengan variasi massa dari 1,0 g, 1,5 g, dan 2,0 g. Selanjutnya, semua sampel dipanaskan dalam furnace pada temperatur 600 C selama 3 jam. Fase terbentuknya SiC diindikasikan dengan warna fisik pada setiap sampel yang berubah dari abu-abu menjadi putih kehijauan. Selanjutnya serbuk SiC dikarakterisasi menggunakan fourier transform infrared (FTIR) untuk mengetahui gugus fungsi dan X-Ray Diffractometer (XRD) untuk mengetahui derajat kristalinitas, sudut difraksi 2 , dan jarak antar kisi (d). Hasil karakterisasi FTIR menunjukkan adanya ikatan Si–C pada bilangan gelombang  786,89 – 941,19 cm-1. SiC yang diperoleh pada semua sampel memiliki struktur kubik (β-phase) atau dapat disebut β–SiC dengan karakteristik dhkl (111) dan parameter kisi pada kisaran 0,43 nm berdasarkan analisa menggunakan XRD. Penambahan 1 g Mg menghasilkan SiC yang terbaik dengan puncak intensitas difraksi 54 a.u pada sudut 36,04 . Semakin tinggi penambahan Mg pada proses sintesis menyebabkan penurunan intensitas, derajat kristalinitas, dan memperbesar ukuran kristal β–SiC. β–SiC yang disintesis dari sekam padi dengan temperatur rendah ini dapat diaplikasikan sebagai material keramik. Namun, diperlukan karakterisasi lebih lanjut menggunakan thermogravimetrical analysis (TGA) untuk mengetahui titik leleh serbuk SiC.
Pembuatan Alat Ukur Multi Kanal Kelembaban Tanah Berbasis Mikrokontroler Arduino Uno
Authors: Kharisma Mila , Sugriwan Iwan , Harnawan Ade Agung
Published: April 2019

Soil moisture very important to be measured per unit of time, especially in  peat soils that have high porosity value. The measuring device for detection of soil moisture is realized on this research. The soil moisture measuring instrument is built by three main blocks of an instrument, that are four soil moisture sensors YL-69s, Arduino Uno as measurement processing unit that equipped with sd card as data storage unit and 20x4 character LCD as a display unit of the measurement result. The span value of the measuring device ranges from 0% to 95 % with deviation from 0% to 4.88%.The advantages of the measurement instrument system are simple in the operational process, real-time monitoring and stored automatically.
Pemanfaatan Sistem Alat Ukur Kadar Gas Metana (Ch4), Suhu dan Kelembaban pada Perkebunan Kelapa Sawit di Lahan Gambut
Authors: Sugriwan Iwan , Ramdani Adi Saputra , Fahrudin Arfan Eko , Suryajaya Suryajaya
Published: April 2019

Alat ukur kadar gas metana (CH4), suhu dan kelembaban telah dilakukan. Alat ukur ini dapat diaplikasikan di perkebunan kelapa sawit di lahan gambut. Alat ukur ini terdiri dari sensor TGS2611, sensor SHT11, catu daya, voltage follower, mikrokontroler ATMega8535 dan LCD karakter 16x2. Tegangan keluaran sensor TGS2611 dikondisikan dengan rangkaian voltage follower kemudian dihubungkan dengan ADC internal mikrokontroler ATMega8535. Persamaan karakteristik sensor TGS2611 ditentukan dengan cara mengambil beberapa data kadar gas metana dan tegangan keluaran sensor pada datasheet sensor TGS2611 kemudian dibuat grafik persamaan karakteristiknya, sehingga diperoleh persamaan karakteristik sensor V=0,544ln(x)-2,113, dengan V adalah tegangan keluaran sensor dan x adalah kadar gas metana (ppm). Sensor SHT11 merupakan sensor digital yang sudah terkalibrasi pabrik, sehingga sensor SHT11 bisa langsung dihubungkan dengan catu daya, lalu data dari sensor dihubungkan ke mikrokontroler ATMega8535. Data hasil pengukuran ditampilkan pada LCD karakter 16x2 dan ditampilkan pada komputer dengan program yang telah dibuat menggunakan Delphi 7.0. Data hasil pengukuran juga tersimpan dalam database. Hasil pengukuran yang dilakukan selama 2 hari dengan durasi pengukuran satu setengah jam pada hari pertama dan 2 jam pada hari kedua menyatakan bahwa keberadaan gas metana tidak terdeteksi di kebun kelapa sawit yang ditanam di lahan gambut. Pada hari pertama pengukuran nilai suhu udara berkisar antara 28,8 0C – 30 0C dan nilai kelembaban udara berkisar 87,6% - 89,6%. Pada hari kedua pengukuran nilai suhu udara berkisar antara 26,6 0C - 33,1 0C dan nilai kelembaban udara berkisar 85,1% - 88,4%.
Analisis Tingkat Resapan Air Menggunakan Sistem Informasi Geografis di Das Tabunio
Authors: Saputra Ahmad Eko , Ridwan Ichsan , Nurlina Nurlina
Published: April 2019

The development of development that is so rapid causes more and more land to change into new buildings and settlements that have an impact on the reduction in the area of water catchment areas. Reduced water catchment areas will result in reduced groundwater reserves and will cause natural disasters such as floods. Based on this, efforts need to be made to determine the condition and distribution of water absorption in the Tabunio watershed area. In determining water absorption conditions there are four parameters, namely soil type, rainfall, land cover and slope. The data analysis method used is the overlay method with Geographic Information System (GIS) software. The results of data analysis showed that the study area with an area of 62,558.56 ha was divided into five conditions for water catchment areas. The water recharge conditions were very critical with an area of 32.38 ha, critical conditions covering 13,391.14, rather critical conditions covering an area of 35,769.47 ha, critical conditions ranging from 13,359.27 ha and natural normal conditions covering an area of 6.10 ha.
Survey Questionnaire Survey Pretesting Method: An Evaluation of Survey Questionnaire via Expert Reviews Technique
Authors: Ikart Emmanuel M.
Published: April 2019

Whereas the literature on questionnaire pretesting has revealed a paradox, questionnaire pretesting is a simple technique to measure in advance whether a questionnaire causes problems for respondents or interviewers. Consequently, experienced researchers and survey methodologists have declared questionnaire pretesting indispensable. All the same, published survey reports provide no information about whether a questionnaire was pretested and, if so, how and with what results. Moreover, until recently, there has been limited methodological research on questionnaire pretesting. The universally acknowledged importance of questionnaire pretesting has been honoured more in theory than in practice. As a result, we know very little about pretesting and the extent to which a pretest serves its intended purpose and leads to value-added on questionnaires. An expert review is a traditional method of questionnaire pretesting. Expert reviews can be conducted with varying levels of organisation and rigor. On the lower end of the spectrum, an experienced subject matter expert, or survey methodologist reviews a draft questionnaire to identify issues with question wording or administration that may lead to measurement error. On the more rigorous end of the spectrum, as employed in this study is the Questionnaire Appraisal Scheme method, a standardized instrument review containing 28 problem types that allow experienced researchers and/or coders to code, analyse and compare the results of questionnaire problems reported by the independent expert reviewers for consistency and agreement across the expert reviewers. However, in spite of the wider use of the expert review as a pretest method, fewer empirical evaluations of this method exist. Specifically, there is little evidence as to whether different expert reviews consistently identified similar questionnaire problems. Similarly, there has been no reasonable level of agreements across the expert reviewers in their evaluation of questionnaire problems. This paper addresses these shortcomings. The protocols employed in the paper would contribute to reducing the shortfall in pretesting guidelines and encourage roundtable discussions in academia and management practice.
Growth performance of goldfish, Carassius auratus and basil, Ocimum basilicum in media bed aquaponics
Authors: Patil P.A. , Dube K. , Verma A.K. , Chadha N.K. , Sundaray J.K. , Jayasankar P.
Published: April 2019

An experiment of 36 days duration was conducted to study growth performance of goldfish Carassius auratus and basil Ocimum basilicum reared in a media bed aquaponic system. Goldfish fry (3.32 ± 0.45 g and 4.20 ± 0.39 cm) were stocked in rectangular 75 l capacity (water volume of 50 l) plastic tanks at three different stocking densities viz., 500 m-3 (T1), 600 m-3 (T2) and 700 m-3 (T3), respectively and basil plants were planted at a density of 20 m-2, i.e., 10 plants 0.44 m-2 in the rectangular plastic tanks filled with crushed stone media. The goldfish fry were fed with artificial feed (33% protein) at 5% of body weight in equal proportions, two times a day. Control (C) group was set with only basil plants. Growth parameters of goldfish such as length gain (%), weight gain (%) and specific growth rate (% d-1) were significantly higher in T3 (p<0.05) as compared to T1 and T2. However, feed conversion ratio (FCR) and protein efficiency ratio (PER) did not differ between treatments. Similarly, basil plant growth in terms of height gain (%) and leaves yield (nos. plant-1) were found to be highest in T3 which was significantly different from T1, T2 and control (C). Throughout the experimental period, values of water parameters in all the treatments were found to be in favourable ranges. From the results of the present study, it could be concluded that for maintaining good water quality with highest production in media bed aquaponics, the optimum stocking density is 700 m-3 for goldfish fry and 10 plants per 0.44 m2 for basil plants.
Spatio-temporal distribution of eggs and larvae of half-fin anchovy Setipinna taty (Valenciennes, 1848) in the inshore waters off Jiangsu, China
Authors: Jin Yan , Liu Zun-Lei , Tang Jian-Hua , Liu Yong
Published: April 2019

Understanding the spatial distribution and environmental characteristics of fish spawning grounds is essential to design effective fishery management. The half-fin anchovy Setipinna taty (Valenciennes, 1848) plays an important role in the marine food web. A survey with 54 stations was conducted in 2014 to study the spatio-temporal distribution of eggs and larvae of half-fin anchovy around the inshore waters of Jiangsu, China. Half-fin anchovy eggs, larvae and juveniles were collected every month from April to July 2014. Generalised additive models were used to investigate the relationship between distribution of eggs, larvae and juveniles and environmental variables. A total of 4150 eggs and 685 half-fin anchovy larvae and juveniles were caught during the survey. During the spawning season, the highest egg densities were located in the inshore water area (121°-122°E, 32.5-33.5°N), with no significant shift in location of egg densities through time. The distribution of larvae and juveniles mostly overlapped with the egg distribution, suggesting that the early life stage of half-fin anchovy are distributed within the inshore waters of Jiangsu. The optimal water temperature, salinity and depth for eggs and larvae were in the range of 14.0-24.6°C, 28.7-29.8 ‰ and 15.9-17.4 m, respectively.
Effect of feeding frequency on growth, feed utilisation and cannibalism in climbing perch Anabas testudineus (Bloch 1792) fry
Authors: Dash Lipsha , Kumar Rajesh , Mohanta K.N. , Mohanty U.L. , Pillai Bindu R. , Sundaray J.K.
Published: April 2019

A 35 days experiment was conducted to study the effect of different feeding frequencies on growth and feed utilisation in climbing perch Anabas testudineus (Bloch 1792) fry. Four different feeding frequencies in triplicate viz., 2 (T1), 3 (T2), 4 (T3) and 5 (T4) times a day were evaluated. Fry (144 nos.) of climbing perch were randomly distributed in 12 glass aquaria (50 l) containing 25 l of filtered and well aerated freshwater. Formulated pellet feed was prepared and fed @ 6% body weight to all the experimental groups at different feeding frequencies as mentioned above. At the end of the experiment, fishes were sampled to determine weight gain percentage (WG %), specific growth rate (SGR), food conversion ratio (FCR), protein efficiency ratio (PER), survival percentage (%) and partial cannibalism rate (%). Results revealed that the WG% (112.80±2.25), PER (1.65±0.03) and SGR (2.15±0.03) were significantly higher (p<0.05) in T3 group. FCR (1.55±0.03) was lowest in T3 group. Partial cannibalism rate (%) was significantly higher (p<0.05) in the treatment group T1 (6.33±0.88) whereas the survival rate (%) was lowest in T1 (91.66±4.81). The results therefore, indicated that feeding frequency of 4 times a day (T3) could be the ideal feeding frequency for better growth and feed utilisation during fry rearing of climbing perch.
Microplastics in the aquatic environment: implications for post-harvest fish quality
Authors: Madhusudana Rao B.
Published: April 2019

Though fish meat is good for health, its consumption is determined by post-harvest quality parameters. The “use and dispose” attitude of the public towards plastics coupled with inadequate waste management has led to extensive accumulation of plastic debris in the aquatic environment. Microplastics (plastic particles of <5mm in their longest dimension) in the aquatic environment and fish gut is an emerging concern that has been reported from different regions of the world. The degradation of plastic polymers to micro- and even to nano sized particles smaller than 100 nm size is of recent major concern. Micro- and nanoplastics are basically inert but they tend to sorb toxic pollutants and harmful microorganisms. Moreover, chemicals added to plastic to impart functional properties pose threat to human health. Fish, either by passive ingestion or active foraging accumulate microplastics in their guts. However, there is paucity of documented evidence on the adverse effect of microplastics on human health due to consumption of such fish. Protocol for the determination of quantity of microplastics in fish flesh needs to be standardised and quality standard to be fixed for the quantity of microplastics that would be considered as a food hazard. There exists an imminent need to perform risk analysis in order to categorise microplastic as a food hazard in fish meant for human consumption. Until then there is no justification to reduce the consumption of fish and fishery products due to apprehension of presence of microplastics.
Perencanaan Persediaan Bahan Baku Rajungan Menggunakan Metode MRP (Material Requirement Planning) (Studi Kasus : UD. Gerald Unedo)
Authors: Fajriyah Eka Wahyuni , Mu'tamar Mohammad Fuad Fauzul , Rahman Askur
Published: April 2019

ABSTRAK

Pengadaan bahan baku sering menjadi permasalahan dalam suatu industri. Pengadaan bahan baku yang baik dapat memperlancar jalannya suatu proses produksi sehingga kebutuhan dapat terpenuhi tepat waktu dan meminimalisasi biaya pengadaan. UD. Gerald Unedo yang terletak di Desa Sabiyan Bangkalan merupakan perusahaan yang bergerak di industri rajungan berproduksi sebagai pengulitan Rajungan. Pengadaan bahan baku metode perusahaan dilakukan berdasarkan apa yang biasa dilakukansebelumnya  oleh perusahaan yaitu perusahaan akan memproduksi berapapun bahan baku yang tersedia pada suplier.Hasil yang telah dilakukan dengan metode MRP teknik Lot For Lot didapatkan biaya pemesanan sebesar Rp. 247. 470. 417 dan biaya penyimpanan sebesar Rp. 256. 700. 806 penghematan sebesar 44 % lebih hemat dibandingkan dengan metode perusahan.

 

Kata kunci : Persediaan, Pengadaan, Pemesanan, Penyimpanan, Lot For Lot, UD. Gerald Unedo

 

ABSTRACT

The supply of raw materials is often a problem in an industry. Procurement of good raw materials can facilitate the running of a production process so that needs can be met on time and minimize procurement costs. UD. Gerald Unedo located in Sabiyan Bangkalan Village is a company engaged in the crab industry produces as a difficulty of Rajungan. Procurement of raw materials company method is done based on what used to be done before by the company that the company will produce whatever the raw materials available on suplier.a result has been done with the method of MRP techniques Lot For Lot method a obtained booking is fee of Rp. 247. 470. 417 and the storage fee of Rp. 256. 700. 806 savings of 44% than  efficient more the method of the company.

Keywords: Inventory, Procurement, Booking, Storage, Lot For Lot, UD. Gerald Unedo
Papan Pergantian Pemain Sepak Bola Berbasis Digital Menggunakan IC4072 dan IC7447
Authors: Arifianto Teguh
Published: April 2019

Semua rangkaian elektronika pada umumnya menggunakan komponen tabung hampa (vaccum tube) atau komponen diskrit seperti dioda dan transistor. Terkait dengan perkembangan teknologi dalam bidang elektronika, baik rangkaian maupun komponen mengalami perkembangan yang begitu pesat. Sehingga setiap rangkaian elektronika dibentuk oleh komponen semikonduktor yang disebut sistem digital. Di dalam dunia olahraga, konsep digital dapat diterapkan. Salah satunya adalah olahraga sepak bola. Di dalam sepak bola, papan angka sangat dibutuhkan. Hal tersebut untuk memudahkan pergantian pemain oleh sebuah tim. Sebagian stadion di Indonesia masih menggunakan papan pergantian pemain secara manual. Dalam perkembangan rangkaian pergantian pemain saat ini masih menggunakan mikrokontroler. Namun, di dalam rangkaian mikrokontroler tersebut terdapat banyak kelemahan antara lain, efisiensi penggunaannya kurang begitu baik karena hanya untuk menampilkan angka 0 sampai 9 menggunakan bahasa pemrograman komputer. Penggunaan papan angka berbasis IC (Integrated Circuit) lebih sederhana karena dalam pembuatannya tidak memerlukan bahasa pemrograman hanya menggunakan rangkaian dasar elektronika. Apabila dalam kerusakannya lebih mudah ditangani dan tidak membutuhkan banyak biaya dan waktu. Rangkaian ini merupakan alat yang digunakan untuk mempermudah penggantian pemain sepak bola berbasis digital dengan tampilan berupa angka pada seven segment.
Kata Kunci: rangkaian elektronika, dioda, transistor, sistem digital, sepak bola, mikrokontroler, IC (Integrated Circuit), seven segment
Penapisan antibakteri pada Bakteri Simbion Sinularia sp terhadap Escherichia coli
Authors: Kartika Ary Giri Dwi
Published: April 2019

karang lunak) memiliki metabolit sekunder dengan konsentrasi yang rendah (10-6% dari berat basa invertebrata). Oleh karena itu dibutuhkan cara yang lebih konservatif dalam pemanfaatan metabolit sekunder untuk menjaga keseimbangan ekosistem.Tujuan dari penelitian ini adalah mengisolasi bakterisimbion Sinularia sp dan melakukan penapisan aktivitas antibakteri terhadap Escherichia coli. Isolasi bakteri simbion Sinularia sp dilakukan dengan menggunakan metode pengenceran dan sebar (spread). Purifikasi bakteri menggunakan metode streak, kemudian, uji antibakteri dilakukan dengan menggunakan metode overlay dan difusi agar. Sebanyak 5 isolat bakteri didapatkan dari hasil isoasi sampel. Hasil uji aktivitas antibakteri menunjukkan sebanyak 4 isolat (Isolat L2.2, L2.3, L2.4, dan L2.5) memiliki aktivitas antibakteri terhadap bakteri Escherichia coli. Isolat L2.5 memiliki diameter zona hambat terbesar yaitu sebesar 2,207 ± 0,401 cm.

Kata Kunci: Sinularia sp, Antibakteri, Escherichia coli, Gili Labak.

Skrinning Antibacterial from Sinularia sp Symbiont Bacteria Againts Escherichia coli

ABSTRACT

Several studies have shown that invertebrates (including soft corals) contain secondary metabolites in low concentration (10-6% by wet weight of invertebrate). Therefore a more conservative approach is needed in the utilization of secondary metabolites to maintain the balance of ecosystems. The purposes of this study was to isolate the bacterium Sinularia sp and to screen antibacterial activity against Escherichia coli. Isolation of the bacteria symbione of Sinularia sp was performed by dilution method and spread. Purification of bacteria was performed by streak metho then, antibacterial test was done by using overlay method and agar disk-diffusion. A total of 5 bacterial isolates were obtained from the result of the isoation of the sample. The result of antibacterial activity test showed 4 isolates (Isolates L2.2, L2.3, L2.4, and L2.5) had antibacterial activity against Escherichia coli. Isolates L2.5 has the largest inhibitory zone diameter of 2.207 ± 0.401 cm.

Keywords: Sinularia sp, Antibactery, Escherichia coli, Gili Labak.
Pemilihan Alternatif Terbaik Cleaner Production Pada Industri Keripik Singkong Dalam Mendukung Sustainable Manufacturing
Authors: Ulya Millatul , Hidayat Khoirul
Published: April 2019

Produksi bersih merupakan salah satu strategi dalam sustainable manufacturing yang dapat digunakan untuk meningkatkan kinerja lingkungan di industri pengolahan keripik singkong. Tahap awal dalam penilaian produksi bersih adalah identifikasi peluang produksi bersih dengan metode analisis deskriptif dan analisis keseimbangan material dan energi. Berdasarkan analisis neraca keseimbangan material dan energi, jumlah bahan baku 3,6 ton singkong menghasilkan non product output air sisa pencucian, 1,5 liter minyak jelantah dan 900 kg kulit singkong. Berdasarkan analisis neraca kesetimbangan massa dan energi tersebut, terdapat 5 peluang produksi bersih yaitu penghematan air, produksi sabun dari minyak jelantah, pengolahan kulit singkong menjadi tepung kulit singkong, kerupuk kulit singkong dan gula cair.  Perlu dilakukan penelitian lanjut berupa sintesis untuk menentukan alternatif terbaik dari beberapa peluang produksi bersih yang telah teridentifikasi.

Kata Kunci: Produksi bersih, keripik singkong.

 

Identification of Cleaner Production Opportunity in Cassava Chips Industry in Supporting Sustainable Manufacturing

 

ABSTRACT

Cleaner production is one strategy in sustainable manufacturing that can be used to improve environmental performance in cassava chips processing industry. The initial stage in the assessment of cleaner production is the identification of cleaner production opportunities by descriptive analysis methods and the analysis of material and energy balance. Based on the analysis of material and energy balance, the amount of raw material is 3.6 tons of cassava yielded non product output of wash water remaining, 1.5 liter of used cooking oil and 950 kg of cassava peel. Based on the analysis of material and energy balance, there are 5 cleaner production opportunity that is water saving, soap production from used cooking oil, processing of cassava peel to cassava peel flour, cassava peel cracker and liquid sugar. Further research should be done in the form of synthesis to determine the best alternative of several cleaner production opportunities that have been identified.

Keywords: Cleaner production, cassava chips, metode Bayes.
Radial Basis Function Neural Network sebagai Pengklasifikasi Citra Cacat Pengelasan
Authors: Rinanto Noorman , Wahyudi Mohammad Thoriq , Khumaidi Agus
Published: April 2019

Tingginya resiko kesalahan manusia dalam inspeksi visual untuk cacat pengelasan yang masih mengandalkan kemampuan manusia sulit untuk dihindari. Oleh sebab itu, penelitian ini mengusulkan sebuah klasifikasi cacat las visual dengan menggunakan algoritma Radial Basis Function Neural Network (RBFNN). Masukan RBFNN berupa citra las yang terdiri dari 5 (lima) kelas cacat las visual dan 1 (satu) kelas citra las normal. Citra las tersebut diproses terlebih dahulu menggunakan metode ekstraksi fitur Fast Fourier Transform (FFT) dan Descreate Cosine Transform (DCT). Hasil kedua metode ekstraksi fitur tersebut kemudian akan saling dibandingkan untuk mengetahui kinerja RBFNN. Hasil pengujian menunjukkan bahwa sistem dengan metode FFT-RBFNN dapat menggolongkan citra cacat las dengan akurasi sebesar 91.67% dan DCT-RBFNN sekitar 83.33% dengan jumlah neuron hidden layer sebanyak 15 dan parameter spread adalah 4.

Kata Kunci: Radial Basis Function Neural Network (RBFNN), FFT, DCT, cacat las, klasifikasi.

Radial Basis Function Neural Network as a Weld Defect Classifiers

 

ABSTRACT

The high risk of human error in visual inspection of welding defects that still rely on human capabilities is difficult to avoid. Therefore, this study proposes a classification of visual welding defects using the Radial Base Function Neural Network (RBFNN) algorithm. The RBFNN input is in the form of a welding image consisting of 5 (five) visual welding defect classes and 1 (one) normal welding image class. The weld image is processed first using the Fast Fourier Transform (FFT) and Descreate Cosine Transform (DCT) feature extraction methods. The results of these two feature extraction methods will be compared to find out the RBFNN performance. The test results show that the system with FFT-RBFNN method can classify the image of weld defects with an accuracy of 91.67% and DCT-RBFNN around 83.33% with the number of hidden layer neurons as much as 15 and the parameters of spread are 4.

Keywords: Radial Basis Function Neural Network (RBFNN), FFT, DCT, weld defect, classification.
Analisis Faktor Terhadap Komoditas Pangan di Kabupaten Gresik
Authors: Rufaidah Anik
Published: April 2019

Komoditas pangan merupakan hal yang penting untuk memenuhi kebutuhan manusia, denganterpenuinya komoditas pangan maka kesejahteraan manusia dapat terpenuhi. Untuk mengingkatkan ketahanan pangan yang ada di lingkungan kabupaten Gresik, sehingga perlu diadakan penelitian tentang semua komoditas pangan yang dikonsumsi oleh masyarakat pada tahun 2016 dan 2017. Hal ini perlu dilakukan penelitian tentang faktor-faktor apa saja yang berpengaruh terhadap komoditas pangan di kabupaten Gesik, sehingga dapat meningkatkan kesejahteraan masyarakat. Yang mana hasil analisis faktor pada tahun 2016 didapat faktor 1 diantaranya tanaman jagung(X2), tanaman umbi(x4), tanaman pangan(X5) dan tanaman buah-buahan(X6). Dan untuk variabel yang masuk dalam faktor 2 diantaranya yaitu tanaman padi(X1), tanaman kedelai(X3) dan tanaman sayur(X7). Sedangkan untuk analisis faktor pada tahun 2017 adalah faktor 1 yaitu tanaman jagung (X2), tanaman buah-buahan (X5) dan tanaman sayur-sayuran(X6). Sedangkan faktor 2 yaitu tanaman padi (X1) dan tanaman pangan (X4). Dan untuk yang masuk dalam faktor 3 diantaranya tanaman kedelai (X3) dan tanaman umbi (x4), untuk tanaman jagung, buah-buahan dan sayur.

Kata Kunci: Analisis Faktor, Komoditi.

 

ABSTRACT

Food   commodities are important to supply human needs, with supplied by food commodities, human life can be prosperous. To improve the food durability in Gresik regency, it is necessary to research on all food commodities consumed by public in 2016 and 2017. This necessarily is to research on what factors affect of the food commodities in Gresik district, so it can improve people’s welfare. Which result of factors analyzed in 2016, they used plant as variables for factor 1 were corn (X2), tuber (X4), food crop (X5) and fruit (X6). And for the variables included in factor 2 were rice (X1), soybean(X3) and vegetable (X7). Whereas in 2017 the plant as variable analyzed  of factor 1 are corn (X2), fruit (X5) and vegetable (X6). And of factor 2 are rice (X1) and food corp (X4). And for those included of factor 3 are soybean (X3) and tuber (X4), for corn, fruits and vegetables.

Keyword: Factor Analyzed, commodities.
Factores protectores, cualidades positivas y psicopatología adolescente en contextos clínicos
Authors: Márquez-Caraveo María Elena , Pérez-Barrón Verónica
Published: April 2019

Objetivo. Identificar la presencia de cualidades positivas y los problemas de salud mental en adolescentes que acuden a atención especializada. Material y métodos. Se evaluaron 145 pacientes de ambos sexos. Se utilizó la versión oficial internacional validada en español del Youth Self Report/11-18 (YSR/11-18) del ASEBA, que mide psicopatología y cualidades positivas, que son características personales asociadas con la adaptación positiva. Resultados. Las cualidades positivas más comúnmente reportadas fueron las relacionadas con el comportamiento social positivo, sin diferencias en las medias entre hombres y mujeres. Las mujeres presentaron niveles más altos de problemas internalizados y externalizados en comparación con los hombres. Conclusiones. Los adoles­centes en escenarios clínicos muestran cualidades positivas tanto como psicopatología. Es importante identificar y forta­lecer estas características como factores de protección en los adolescentes en contextos de riesgo. Las mujeres presentan mayor nivel de psicopatología por lo que la intervención preventiva implicaría un enfoque de género.
3D Whole Brain Vessel Wall Imaging of Primary Angiitis of the Central Nervous System: 5 Cases and Literature Review
Authors: Yu Yao , Zhou Hong-Wei , Guo Zhen-Ni , Jin Hang , Zhang Fu-Liang , Niu Peng-Peng , Luo Yun , Wang Chao , Shi Ming-Chao , Liu Jia , Qin Hai-Qiang , Yang Yi
Published: April 2019

Background

Primary angiitis of the central nervous system is an uncommon single-organ vasculitis that is still poorly understood, and its diagnosis can be quite challenging. Traditional vascular imaging techniques could only show the abnormality of vessel lumen, while primary angiitis of the central nervous system as well as atherosclerosis or other mimics could show similar patterns, like tapering of the vessel lumen or multiple stenosis. Vessel wall magnetic resonance imaging can directly visualize the abnormality of the vessel wall, therefore has become a valuable approach for vasculopathy evaluation. However, 2D vessel wall magnetic resonance imaging can only be restricted to one fixed angle for one scanning process, while vasculitis tends to involve multiple vessels. With the development of 3D isotropic vessel wall imaging sequence, it can achieve a thorough view of the whole brain vasculature in shorter time and apply reconstruction in any angle. Reasonably, 3D isotropic vessel wall imaging could help with the diagnosis, evaluation and follow-up of primary angiitis of the central nervous system more effectively.

Case presentation

We present five cases of primary angiitis of the central nervous system that underwent 3D isotropic vessel wall imaging, along with follow-up. The diagnosis of primary angiitis of the central nervous system was made by classic diagnosis criteria. The youngest patient was 21 years old, while the oldest one was 49 years old. As for disease onset, one patient presented with headache, while other four patients presented with ischemic stroke. Both anterior circulation and posterior circulation of the five patients were involved, regardless of the responsible vessel. They were given steroids, immunosuppressor or parahormone for management. On follow-up vessel imaging, one patient displayed gradual vessel occlusion in 12 months, one patient showed partial resolution, other three patients presented with vasculopathy persistence.

Conclusions

3D isotropic vessel wall imaging could evaluate the specific responsible vessel as well as the whole brain vasculature in one-time scan, providing detailed information in detection, diagnosis, evaluation and follow-up. Moreover, primary angiitis of the central nervous system tend to be multi-vessel involving, so the 3D isotropic vessel wall imaging could be more applicable.
Understanding triangulated collaboration of work-life balance, personality traits and eudaimonic well-being
Authors: Soni Pooja , Misra Bakhru Kanupriya
Published: April 2019

This paper aims to understand the relationship between personality traits, work-life balance (WLB) and eudaimonic well-being (EWB) among individuals in education sector. It is hypothesized that big five personality traits are positively related to different components of WLB and further components of WLB are positively related to different components of EWB. Data were collected from 504 business school teachers through a structured questionnaire from national capital region (NCR) of India. Analysis is done using structural equation modeling. The result indicate that big five personality traits influence all the dimensions of WLB and, hence, are important predictor variables. Finding also suggests that work interference with personal life and health dimensions of WLB significantly impacts EWB. Whereas personal life interference with work and work personal life enhancement dimension of WLB were found to have significant impact on some dimensions of EWB, the outcomes have practical implication in dispositional job design, developing supportive policies, work-life culture and eudaimonia oriented interface for maximizing individual and organizational outcomes. The study reflects towards work-life balance in a novel socio-cultural context and promotes possibility of the mediating role of WLB to the relationships between personality traits and EWB.
Early diagnosis of cervical ectopic pregnancy after in vitro fertilization
Authors: E.V. Potolova, V.M. Pomortsev, Ò.V. Snedkova
Published: April 2019

The rare case of ectopic (cervical) pregnancy after in vitro fertilization is presented. Early ultrasound detection helped to save reproductive function. Differential ultrasound criteria of cervical pregnancy and modern
treatment strategy are discussed.
The case of prenatal ultrasound diagnosis of the fetal superior occipital
encephalocele in the second trimester of gestation
Authors: I.N. Daminov , S.F. Nasirova
Published: April 2019

The case of prenatal ultrasound diagnosis of fetal superior occipital encephalocele at 19 weeks of gestation
is presented. The pregnancy was terminated at 20 weeks of gestation. An external examination of the abortus
confirmed the prenatal ultrasound diagnosis.
Vaginal Carriage of Chlamydia Trachomatis and Other Sexually Transmissible Pathogens Among Adolescents in Nigeria
Authors: Emele Felix Emele , Agbakoba Nneka Regina , Chukwuka Chiamaka Princewill , Oguejiofor Charlotte
Published: April 2019

Objectives: Chlamydia trachomatis remains a major cause of genital tract infection and can cause undesirable consequences, such as female infertility. Adolescent girls are physiologically more vulnerable to genital tract infection than older women and need regular screening for genital pathogens. We, therefore, saw the need to screen teenage high school girls in the Anambra State of Nigeria for Chlamydia trachomatis and other potential urogenital pathogens.Study design: This was a Cross sectional study involving 100 randomly selected high school girls, aged 13-18 years, who consented to the study. High vaginal swab samples were collected from the subjects and were analyzed microbiologically; genomic DNA was extracted from each specimen and subjected to PCR analysis. Semi-structured, pre-tested, questionnaires were used to collect relevant bio-data from the participants. The results were analyzed using Chi-square test and percentages.Results: Of the 100 girls, 47(47%) harbored sexually transmissible pathogens in the vagina. Overall, sixty five different kinds of potential urogenital pathogens were recovered, some in co-infection. Organisms represented were as follows: Chlamydia trachomatis, 4(4%); genital Mycoplasmas, 10(10%); Ureaplasmas, 10(10%); Gardnerella vaginalis, 10(10%); and Candida 31(31%). Majority of the girls sought medical treatment from sources other than the hospitals (X2 = 75.9017; p< 0.05).Conclusion: Results showed that sexually transmitted pathogens were common in the high school girls, and alerts of the need for regular vaginal screening and proper medical enlightenment of the adolescents.
A facile one-pot preparation of Bi2O2CO3/g-C3N4 composites with enhanced photocatalytic activity
Authors: Duan Yongzheng , Yao Haibo , Li Jing , Shang Xili , Jia Dongmei , Li Changhai
Published: April 2019

Bi2O2CO3 modified graphitic carbon nitride (g-C3N4) nanosheets were prepared by a simple one-pot synthetic strategy. In the presence of ammonium nitrate, different mass ratios of bismuth nitrate/melamine were used to fabricate these catalysts, which were characterized by X-ray diffraction (XRD), N2-physisorption, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis analysis, and photoluminescence (PL). The catalytic properties of composites were evaluated by photodegrading tetracycline hydrochloride (TC) under visible light irradiation. Among these catalysts, Bi2O2CO3(1.5)/g-C3N4 showed the highest catalytic activity, which was more than 16 times greater than the pristine g-C3N4 material. The improved photocatalytic properties of Bi2O2CO3/g-C3N4 may be due to the formation of a heterojunction between Bi2O2CO3 and g-C3N4, leading to the effective separation of photo-induced carriers and the enhanced absorption of visible light. Furthermore, the Bi2O2CO3/g-C3N4 composites had considerable catalytic stability, which was a key element for their potential applications.
Two physical processes enhanced the performance of Auricularia auricula dreg in Cd(II) adsorption: composting and pyrolysis
Authors: Li Yue , Huang Siqi , Wei Yingnan , Liu Xuesheng , Zhang Meng , Jin Zonghui , Wang Hongmei , Qu Juanjuan
Published: April 2019

This study aims to discover the impact of composting and pyrolysis on the adsorption performance of Auricularia auricula dreg (AAD) for Cd(II) in aqueous solution. Auricularia auricula dreg (AAD), Auricularia auricula dreg biochar (AADB) and Auricularia auricula dreg compost (AADC) were used to remove Cd(II) from aqueous solution, and their adsorption conditions and mechanisms were compared. The adsorption quantity of three adsorbents reached the maximum (AAD: 80.0 mg/g, AADB: 91.7 mg/g, AADC: 93.5 mg/g) under same conditions (adsorbent dosage of 1 g/L, pH 5.0, biosorption temperature of 25 °C, and biosorption time of 120 min). All Cd(II) biosorption processes onto three adsorbents complied with the Langmuir isotherm model and the pseudo-second-order kinetic equation, and spontaneously occurred in an order of AADC > AADB > AAD. The difference in biosorption quantity relied on variation in surface structure, crystal species and element content caused by composting or pyrolysis. Composting enhanced the changes in surface structure, crystal species, functional groups and ion exchange capacity of the AAD, resulting in AAD had greatly improved the biosorption quantity of Cd(II). Pyrolysis increased the adsorption of Cd(II) mainly by increasing the Brunauer–Emmett–Teller (BET) surface area, the particle size and pH, in the same time, providing more oxygen-containing functional groups.