bluuebunny/crossref_metadata_2025_split huggingface dataset:
KAJIAN DAERAH RAWAN GEMPA DI BULUKUMBA, SULAWESI SELATAN
Authors: Massinai Muh. Altin , - Saaduddin , Ismullah Muh. Fawzy 
Published: January 2019

AbstrakKajian terhadap daerah rawan bencana kegempaan dan tsunami di Kabupaten Bulukumba dilatarbelakangi oleh kondisi struktur geologi dan geomorfologi di daerah tersebut. Keberadaan satuan batuan yang menyusun geomorfologi Bulukumba mempunyai dimensi yang berbeda-beda. Batuan tertua berumur Miosen tengah (Bedrock) berada pada pemekaran dasar laut Teluk Bone sementara batuan termuda berumur Plistosen berada pada sesar Walanae di daratan Bulukumba (Formasi Lompobattang). Hal ini menandakan sistem tektonik yang bekerja tidak selalu sama. Struktur geologi di daerah ini menyebabkan kondisi yang tidak stabil. Ketidakstabilan ini mengancam keberadaan daerah dan masyarakat Bulukumba. Metoda analisis data yang digunakan dalam penelitian adalah deduksi probabilistik dengan pendekatan dedukto-hipotetiko-verifikatif..Data primer diperoleh melalui survei lapangan, sedangkan data sekunder dikumpulkan melalui penelusuran literatur kepustakaan. Analisis data menggunakan analisis statistik sederhana. Berdasarkan perhitungan parameter kewaspadaan diperoleh tingkat pengetahuan kegempaan dan tsunami masyarakat di Kecamatan Rilau Ale, Bulukumba rata-rata bernilai 5,44 berkategori sedang. Tingkat sikap rata-rata bernilai 71,19 berkategori tinggi, sedang tingkat kesiapsiagaan bernilai 49,17 berkategori kurang siap.Kata Kunci: Kegempaan, tsunami, struktur geologi, geomorfologi, analisis statistik.AbstractThis study at tsunami and earthquake of the Bulukumba region by considering the geological and geomorphological condition of the area as the background. The geomorphology of Bulukumba region is formed by various lithologies. The oldest rock of Middle Miocene is found at Teluk Bone Sea floor spreading while the newest one of the Plistocene (Lompobattang Formation) is found at Walenae fault (Bulukumba terrain). This fact indicates the existence of different tectonic system in the area. Inevitably, the geological structure causes instability at its region. The instability becomes a serious threat to the peoples of Bulukumba region. The method used for data analysis in this study is the deductive-probabilistic method with a hipothetic-verificational approch. Two method of data retrieval have been used ie, the field survey of the area (questionnaire method), and the literatures collection. The standard statistical analysis is used to test the data. The calculation of the vigilance parameter has shown that the arverage tsunami and earthquake level of students knowled in the Rilau Ale district is average 54,4 (moderate category). The level of attitude is average 71,19 (high category), while the level of preparedness is worth 49,17 (poorly prepared category).Keywords : Earthquake, Tsunami, geological structure, geomorphology, statistical
ANALISIS SEISMISITAS PADA DAERAH SULAWESI UTARA
Authors: Harimei Bambang , Massinai Muh. Altin , - Mustakin 
Published: January 2019

Telah dilakukan penelitian tentang seismisitas daerah Sulawesi Utara. Penelitian bertujuan untuk menentukan nilai-a (seismisitas) dan nilai-b (kerapuan batuan) Data yang digunakan berasal dari aktivitas lempeng Sulawesi Utara dimulai dari tahun 1980 berakhir 2015. Metode yang digunakan dalam mencapai tujuan adalah maximum Likelihood dengan variabel nilai kerentanan batuan yang diberi lambang huruf b, nilai seismisitas yang diberi lambang a dan periode ulang (T) dari magnitudo momen yang besarnya 6 SR ke atas dengan lambang (Mw). Adapun hasilnya nilai-a berkisar antara 5.5 – 9.5, nilai-b berkisar antara 0.75 – 1.5 dan periode ulang (Mw = 6) berkisar 2 - 10 Tahun, (Mw = 7) berkisar 10 – 60 Tahun, (Mw = 7.5) berkisar 35 – 150 Tahun, (Mw = 8) berkisar 95 – 360 tahun.
RELATIONSHIP BETWEEN SEQUENCE STRATIGRAPHY AND RELATIVE SEA-LEVEL CHANGES
Authors: . Jamaluddin , Sohores Romuald , Ismullah Muhammad Fawzy 
Published: January 2019

The continuous sea-level rise will result in conditions where the level of accommodation space is greater than that of sediment supply produced undertransgression conditions. When the sea level reaches its maximum point, the sedimentation rate will exceed the sea level rise and aggrades becomes more dominant progradation will result in new Highstand System Tract (HST) condition. Keyword: Accommodation, Sea level changes, Sedimentation, Sequence, Stratigraphy
PENENTUAN POTENSI SUMBERDAYA HIPOTETIK TIMAH PRIMER DI DAERAH AIR INAS KEPULAUAN BANGKA BELITUNG
Authors: Darmawansyah Andi , - Makhrani , - Syamsuddin 
Published: January 2019

Penelitian ini bertujuan untuk menentukan zona lemah yang diindikasikan sebagai vein dan menentukan besar sumberdaya hipotetiknya. Data penelitian merupakan data sekunder, terdiri dari 5 lintasan dengan spasi 10 meter dengan panjang lintasan bervariasi. Interpretasi dilakukan dengan menganalisis model penampang 2D dan 3D hasil pengukuran resisitivitas dan chargebilitas bawah permukaan. Hasil interpretasi menunjukkan bahwa persebaran zona lemah yang diindikasikan sebagai tempat terakumulasinya mineral yang mengandung timah cendrung mengarah ke Timur Laut, dimana nilai resistivitas yang rendah letaknya dekat permukaan dengan geometri berbentuk cekungan yang diinterpretasikan sebagai alluvial sedangkan nilai resistivitas rendah yang letaknya jauh dari permukaan diinterpretasikan sebagai zona struktur yang kaya akan rekahan. Dugaan potensi vein yang mengandung timah berada pada nilai resistivitas 500 Ohm – 5000 Ohm dan nilai Chargebilitas 5 – 100 msec. Besar sumberdaya hipotetik daerah penelitian adalah ton.
KARAKTERISASI SERPIH PADA FORMASI TALANGAKAR SEBAGAI POTENSI SHALE HYDROCARBON
Authors: . Jamaluddin , Massinai Muhammad Fawzy Ismullah , Syamsuddin Erfan 
Published: January 2019

Eksplorasi dan eksploitasi di Indonesia saat ini masih terfokus pada energi konvensional hidrokarbon dibandingkan energi nonkonvensional hidrokarbon seperti gas serpih. Gas serpih adalah salah satu energi nonkonvensional yang kaya material organic dan mencapai kematangan, pada kondisi dan tipe tertentu mampu berfungsi sebagai reservoir minyak dan gas. Jendela awal kematangan pada kedalaman 1200-2200 m dan kategori tipe kerogen II/III menghasilkan minyak dan gas.
PEMETAAN WILAYAH RAWAN BENCANA GEMPABUMI BERDASARKAN DATA MIKROTREMOR DAN DATA BOR
Authors: Lantu Lantu , Aswad Sabrianto , Fitriani Fitriani , Marjiyono Marjiyono 
Published: January 2019

Telah dilakukan penelitian untuk pemetaan wilayah rawan bencana gempabumi di wilayah Daerah Istimewa Jogyakarta berdasar data mikrotremor dan data bor. Aktivitas geodinamika pulau jawa secara umum dipengaruhi oleh pergerakan lempeng Eurasia dan lempeg Indo-Australia dengan lempeng mikro Sunda. Pertemuan kedua lempeng tersebut menyebabkan pergerakan kearah Barat – Timur , menjadi penyebab gempabumi Yogyakarta tahun 2006. Tercatat sedikitnya empat kali terjadi gempa besar di Yogyakarta menjadikan daerah ini rawan akan gempabumi. Untuk meminimalisir resiko akan bencana gempabumi yang terjadi , salah satunya melakukan pemetaan wilayah yang rentang bencana gempabumi tersebut dengan mikrozonasi berdasar data mikrotremor dan databor. Upaya mitigasi dengan mikrozonasi dilakukan dengan menghitung nilai HVSR (Horizontal to Vertical Spectral Ratio) untuk memperoleh nilai frekuensi dominan yang menjadi parameter tingkat kerawanan bencana gempabumi. Dalam penentuan kecepatan gelombang S hingga kedalaman 30 meter (Vs30) dengan inversi HVSR. digunakan data pendukung data bor untuk menghindari ketidakunikan data mikrotremor. Hasil Vs30 digunakan untuk menentukan nilai amplifikasi. Hasil analisis dan interpretasi data menujukkan bahwa nilai frekuensi dominan berada pada rentang 1,314 – 14,59 Hz, nilai Vs30 berkisar antara 142,02 – 400,5 m/s dengan amplifikasi dalam rentang 1,5 – 8,02 kali dan 0,8-3,7 kali. Kesimpulan dari penelitian ini menujukkan daerah penelitian rawan bencana gempabumi, terutama daerah yang dilalui oleh sesar Opak.
Analisis Daya Dukung Tanah pada Perencanaan Sarana dan Prasarana Umum
Authors: Harimei Bambang 
Published: January 2019

AbstrakTelah dilakukan penelitian daya dukung tanah pasa perencanaan sarana dan prasana umum, metode yang digunakan dalam penelitian adalah DCP dan CBR. Adapun hasilnya sebagai berikut ; Lokasi sampel DCP 1 dan DCP 2 mempunyai nilai qc berkisar antara 20 -24 kg/cm2, Mv berkisar 0,025 - 0,056 cm2/kgdanα sebesar 1,5 hingga 4 serta nilai CBR masing-masing sampel lebih besar dari 2%. Nilai-nilai parameter ini. memperlihatkan sifat fisis dari sampel DCP 1 dan DCP 2 adalah low plasticity loam.Kata kunci: DCP, BCR, Plastisitas RendahAbstractThe research has been carried out to investigate the carrying capacity of plan of public facilities and infrastructure, the method used in the research is DCP and CBR. The results are as follows; The sample locations of DCP 1 and DCP 2 have qc values ranging between 20-24 kg / cm2, Mv ranges from 0.025 - 0.056 cm2 / kg and α of 1.5 to 4 and the CBR value of each sample is greater than 2%. The values of these parameters. Shows the physical properties of the DCP 1 and DCP 2 sample is the low plasticity loam.Keywords: DCP, BCR, Low plasticity
Biofiltration Efficiency of Algae Spirogyra hyalina to Reduce Salinity of Sea Water
Authors: Putra Ayub Wirabuana 
Published: January 2019

Algae Spyrogyra hyalina is one species of fresh water algae that is very easy to find in Indonesia. This species of algae known to have a lot of potential, which until now unknown. One potential that tried to explore in this research is the ability of these algae for decreasing the level of salt water salinity into fresh water. This research is an experiment with a completely randomized design (CRD), three treatments and three replications. Testing is done by performing algae arbsorbtion using three forms (powder, granule, and paper) with different biomass (1 g, 2 g, and 4gr). Preparations then coupled into a transparent pipe. The results showed the real effect of the decreased levels of salinity brine through the circuit. Filter with the powder forms with 4gr biomass has the highest salinity level reduction of 15%o, then the dosage form of granules with biomass 4gr with decreased 5.23%o and the third dosage form of paper with 1 gram of biomass with a decrease of 4.23%o.Forms with other biomass have a decrease in the salinity level of not more than 4%o. Preparations with powder form and 4gr biomass can be used to reduce the salinity level in the salt water.
Application of Cigeratte Filter from Algae Spyrogira peipingensis to Reduce Nicotine, Tar, and Carbon Monoxide
Authors: Bahri Syamsul 
Published: January 2019

Algae Spirogyra peipingensis is a group of green algae from the order Zygnematales. Spirogyra algae serves as a bioremediation agent. In addition Spirogyra algae has great potential in reducing toxin levels in cigarette smoke. Because the biomass of alga Spirogyra has an irregular shaped surface texture and consists of amino acid, amide, carboxylic, hydroxyl, and carbonyl group that can bind various heavy metals and other harmful compounds. Alga Spirogyra peipingensis samples used are algae from Bone, South Sulawesi. Prior to the trial, the first pretreatment and processed to become powder. Algae powder was then applied to cigarette filters and tested on several respondents. Results showed that there was a significant decrease tar, nicotine and carbon monoxide levels in cigarette smoke by using Spirogyra peipingensis algae but the most significant decrease of carbon monoxide, while tar and nicotine decreased even though not as high as carbon monoxide.
A Study on Entrapment Efficiency of Earthworms (Lumbricus rubellus) Extract in the Ethosomal Drug Delivery System
Authors: Pratiwi Sabrina Resky , Ainiah Nur , Hardyanti Hardyanti , Putri Dini Rusdayanti , Utomo Emilia 
Published: January 2019

IntroductionEarthworms (Lumbricus rubellus) extract is known to contain bioactive protein as antibacterial compounds. One of the disadvantages of polar compounds is slow penetration into the skin layers which can be solved by formulating it in the form of ethosomal drug delivery system. The aims of this research was to get information about ethanol concentration that can give the highest entrapment efficiency of the ethosome. MethodsEarthworms powder was macerated using 50% ethanol for 3 days. The extract was formulated into ethosome with variation of ethanol concentration that are 20%, 30%, 40%, and 50%, respectively. The measurement of entrapment efficiency was conducted by measuring the amount of active protein of earthworms extract that was entrapped in ethosome vesicles using spectrophotometer UV-Visible.ResultsThe results showed that the highest entrapment efficiency was 72.58 % performed by formula which was made with 0.5 % extract, 2 % soy lecithin and 50 % ethanol.ConclusionsThe highest percentage of entrapment efficiency of earthworms extract ethosome was 72.58%.Keywords : ethosome, ethanol concentration , entrapment efficiency, Lumbricus rubellus.
The Production of Chitosan from Shrimp Shell Waste and Its Formulation in Patch DosageForm Combined with Aloe vera Extract as Antiinfection Agent
Authors: Haeriah Haeriah , Rahmatullah Muhammad , Indardaya Andi , Utomo Emilia , Novianti Novianti , Sartini Sartini 
Published: January 2019

Chitosan can be obtained from chitin isolated from shrimp waste through the process of deacetylation of chitin. Chitosan can be used as a patch base material because of its biocompatibility and biodegradability, and has antibacterial activity. The combination of Chitosan and Aloe vera extracts may be useful in patch dosage forms as wound dressings that have antiinfective activity. The research methods was laboratory experimental which consists of : chitosan was obtained from shell waste sequentially by deproteinisation, demineralisation, and deacetylation processes, and analyzed its characteristic, respectivel; Aloe vera gel was extraction by maceration methods using ethanol as solvent; patches were formulated using 2 % chitosan in 1.5 % glacial acetic acid, 1.6 % Aloe vera extracts and 10 % glycerin and evaluated its physical propoperties, skin iritation test, and antibacterial test against S.aureus. The results showed that percentage yield of chitosan was 32.67%, with characteristics; Its viscosity 93.33 cps, pH 4, 30 % deacetylation degree. Percentage yield of Aloe vera extract was 22.73%, containing acemannan, and had antibacterial activity against S.aureus. The result of patch evaluation showed that the thickness of patch was 0.45 mm, 114 times folding endurance, moisture uptake of 45.03%, moisture content of 23.64%, safe to use, and diameter of inhibition zone was 6.39 mm against S.aureus. So, combination of Aloe vera and Chitosan from shrimp shell as patch may use as antiinfection wound healing. Keywords : Aloe vera L.; chitosan; wound dressing; patch; shrimp shell waste
Production of Bioethanol From Kappaphycus alvarezii Algae by Using Pichia kudriavzevii Yeast
Authors: Fadillah Nur , Taufan WInda Lestari , Aska Muh Syahdan 
Published: January 2019

Kappaphycus alvarezii is a red algae that can be used as alternative raw material for bioethanol production. This is because K. alvarezii contains a high carbohydrate that reaches 60%. This study aims to determine the effect of fermentation nutrition and fermentation duration of hydrolysis results of K. alvarezii algae on pH changes, sugar levels, cell biomass and ethanol content. There are two methods was used in this research, namely hydrolysis method and fermentation method. The hydrolysis method was used α-amylases enzyme which is 150 KNU/L with 0.5%, 1.0%, 1.5% and 2.0% concentrations. The next method, K. alvarezii algae was fermented by Pichia kudriavzevii and used Gandasil-D® as an anorganic suplementation and yeast extract which is 0 g/L, 1 g/L, 2 g/L and 3 g/L. The results showed that K. alvarezii can be fermented into bioethanol after enzymatic hydrolysis process. The optimal ethanol content was produced at 48 hours of incubation duration.
The Potential of Algae Spyrogyra peipingensis to Produce Nanogold in Batch Culture Medium
Authors: Syahdinnur Arbaina , Abas Agusrahman Ekaputra , Armidha Chitriani 
Published: January 2019

The biosynthesis of gold nanoparticles by using algae Spirogyra peipingensis was conducted. This research aimed to determine biosynthesis of gold nanoparticles by using algae Spirogyra peipingensis with different concentration and incubation time. The synthesis of gold nanoparticles using HauCl4 solution with variations of concentration 5 ppm, 10 ppm, 15 ppm and 20 ppm respectively in 1 liter of aquabidest. Algae Spirogyra peipingensis was grown in HauCl4 medium with the addition of 0.2 gr Sulfahri-01 nutrient. Then each 5 gram Spirogyra algae incubated in HAuCl4 medium with the addition of Sulfahri-01 0.2 gram nutrients. 4 hours long incubation under exposure to sunlight. Nanoparticle size determination is done by looking at the color that appears in the solution. From the results of the research, it is known that Spirogyra peipingensis algae is able to synthesize gold nanoparticles characterized by the color change in algae biomass from green to purple color after being treated and forming gold nanoparticles with size 40-60 NM. The best-used HAuCl4 consent is 5 ppm with the smallest particle size. KeywordIntracelullar, Spirogyra peipingensis,HAuCl4,Biosynthesis. Article HistoryReceived 8 May 2017 Accepted 3 July 2017
Effect planting dates and varieties on infestation of maize stem borer Chilo partellus (Swinhoe)
Authors: Thakur Pitamber , Bhandari Ghanashyam , Shrestha Jiban , Achhami Buddhi Bahadur 
Published: January 2019

Studies on the effect of different planting dates and varieties of maize on the infestation of maize stem borer (Chilo partellus) were carried out at research field of National Maize Research Program, Rampur, Chitwan, Nepal in 2010/11 and 2011/12. Three maize varieties namely namely Arun-2, Rampur Composite and Gaurav (hybrid) were grown at weekly interval upto 52 weeks from January to December. The results revealed that the damage was higher in Arun-2 (38.9%) followed by Gaurav (35.4%) and Rampur Composite (30.8%) respectively. Higher damage was observed in April (58.2%) and the damage was gradually decreased toward the month of January/February (13.2 to 25.6%) and November/December (13.3 to 16.5%). Lower infestation was observed in winter season (22.5%) followed by spring (47.1%) and summer season (47.0%) respectively. This study suggests that the percent infestation of maize stem borer can be minimized by planting Rampur Composite variety in winter season.
Development Michrosphere Bioadhesive Delivery System From Secondary Metabolit Actynomycetes M10a Rhizosphere Mangrove As Supportive Therapy of Colon Cancer Patients
Authors: Basri Fajrin Hasan 
Published: January 2019

Colon cancer is a cancer that occurs in the large intestine when abnormal cells grow in the colon or rectum layer. Inflammation Symptoms in the colon are usually characterized by a polyp that has cancer risk. Approximately 96% of colon cancer cases are caused by adenocarcinomas that develop from the glandular tissue. Utilization of secondary metabolites from Actynomycetes Mangrove forests can be used as supportive therapy for colon cancer patients that have already through apoptotic testing so it can directly treat the target of illness. This study was prepared in the form of Michrosphere Bioadhesive using secondary metabolite Actynomycetes M10a rhizosphere mangrove. The purpose of this study was to obtain the development of Michosphere Bioadhesive preparations from secondary metabolites Actynomycetes M10a rhizosphere mangrove as supportive therapy for colon cancer patients. Method of the research is base on Laboratory experiment which started with Purification of Actynomycetes isolate, Secondary Metabolite Fermentation, Michrosphere Bioadhesive Formulation and evaluation of Michrosphere Bioadhesive preparation. The concentration of secondary metabolite Actynomycetes M10a rhizosphere mangrove that been used for each formula are 400 μl, 500 μl, and 600 μl, where the percentage of submerged in F1, F2, and F3 are 93,94%, 96,96%, and 94, respectively, 12%. Particular Particle Size Distribution is F1 (3.1μm), F2 (4.4 μm), F3 (3.9 μm). The rest angles obtained are F1 (0.002O), F2 (0.002O), F3 (0.0016O), respectively. Applied efficiency was obtained by F1 (214 nm), F2 (210 nm), F3 (211 nm). Dissolution results show the absorbance results at 266 nm wavelength. From the results obtained that meet the specifications seen in Formula 2. Keywords: Colon Cancer, Actynomycetes M10a rhizosphere mangrove, Michosphere Bioadhesive.
Productivity of maize (Zea mays L.) as affected by varieties and sowing dates
Authors: Gurung Dil Bahadur , Bhandari Balram , Shrestha Jiban , Tripathi Mahendra Prasad 
Published: January 2019

Genotypic yield potential of maize varieties is greatly affected by sowing dates. In order to investigate the effects of sowing dates and varieties on the grain yield of maize, the field experiment was carried out at research field of National Maize Research Program (NMRP), Rampur, Chitwan, Nepal from April 2009 to March 2010. Three varieties namely Rampur Composite, Arun-2 and Gaurav were sown at every week. The results of experiment showed that interaction effect of variety and sowing date on grain yield of maize was significant. Rampur Composite produced highest grain yield (6.1 t/ha) in August and lowest yield (2.6 t/ha) in May. Similarly Arun-2 produced highest yield (4.6 t/ha) in August and lowest yield (2.1 t/ha) in May. Gaurav produced highest grain yield (5.1 t/ha) in September followed by 4.9, 4.8 and 4.6 t/ha in February, July and August respectively and lowest yield (1.5 t/ha) in November. The sowing date was highly significant on grain production. The highest grain production was 5.1 t/ha in August followed by in February (4.9 t/ha), September (4.6 t/ha) and March (4.4 t/ha) respectively. The lowest grain yield was produced in May (2.4 t/ha). Therefore it was concluded that August planting was best for higher grain production of maize varieties (Rampur Composite, Arun-2 and Gaurav) in terai region of Nepal.
Bioaccumulation Monitoring of Heavy Metal Chromium (Cr) in Fish Oreochromis mossambicus in The Floating Net Cultivation in Sidoarjo Krembangan River
Authors: Kristianto Sonny 
Published: January 2019

ABSTRACTFloating Net is a simple alternative cultivation methods. The river there is a garden in the Krembangan District Sidarjoi which is used as a place of cultivation of Floating net fish oreochromis mossambicus (Oreochromis mossambicus), on the other hand is where waste disposal by the local community and some industries . This research aims to know the accumulation of heavy metals chromium (Cr) in the flesh of fish oreochromis mossambicus (Oreochromis mossambicus) and find out the feasibility of fish consumption oreochromis mossambicus at floating net on the river Krembangan Sidoaarjo. This research are observatif by using Purposive Random Sampling techniques. test the content of heavy metal chromium (Cr) in the flesh of fish oreochromis mossambicus (Oreochromis mossambicus) method using AAS (Atomic Absorbtion Spectrofotometry). The data generated in the analysis in quantitative descriptive. In this research show that the heavy metal content of chromium (Cr) in the flesh of fish oreochromis mossambicus highs station III of 0.52 mg/Kg; I station of 0.51 mg/Kg II station of 0.48 mg/Kg on a sampling sedangkang the morning, at night the highest value on the station III of 0.50 mg/Kg; I station of 0.46 mg/Kg and the II of 0.39 mg/Kg. Average deposits of heavy metal Cr on fish oreochromis mossambicus (o. mossambicus) is still under the raw quality of the already established by the Director-General of POM 1989 i.e. amounted to 2.5 mg/kg but fall into the category bioakumulasi medium, so that fish oreochromis mossambicus is still worthy of consumption, but need to watch out for, considering the Cr are toxic, carcinogenic, bioakumulatif and biomagnifikasi would potentially interfere with health.