bluuebunny/crossref_metadata_2025 huggingface dataset:
Matriks Simplektik dan Hubungannya Pada Sistem Linier Hamiltonian
Authors: Laweangi Artmo Dihartomo , Titaley Jullia , Mananohas Mans Lumiu
Published: July 2019

Matriks Simplektik  dengan pengali m merupakan matriks sembarang berukuran  yang memenuhi     persamaan   TTJT = mJ dengan  J merupakan matriks blok berukuran 2n ´ 2n.  Apabila m = 1  maka T disebut simplektik. Sedangkan  sistem linier Hamiltonian merupakan  2n sistem persamaan diferensial dengan  bentuk: z’ =J(dH/dz) = JS(t)z = A(t)z, dimana H = H(t,z) = ½ zTS(t)z.  Dengan S(t) merupakan matriks simetrik yang kontinu pada sebuah interval q pada ℜ. Pada penelitian ini didapati bahwa hanya matriks simplektik dengan  pengali m (dimana m sembarang ) yang dapat mentrasformasi sistem linier Hamiltonian  z’ = A(t)z ke sebuah sistem linier Hamiltonian yang berpadanan, juga bahwa ada sebuah subgrup dari matriks Hamiltonian yang isomorfik terhadap subgrup matriks simplektik. Kata kunci: Isomorfik, Matriks Hamiltonian, Matriks Simplektik, Sistem Linier Hamiltonian, Subgrup
The Estimation of Renewal Functions Using the Mean Value Theorem for Integrals (MeVTI) Method
Authors: Sasongko Leopoldus , Mahatma Tundjung
Published: July 2019

In the analysis of warranty, renewal functions are important in acquiring the expected number of failures of a nonrepairable component in a time interval. It is very difficult and complicated -if at all possible- to obtain a renewal function analytically. This paper proposes a numerical integration method for estimating renewal functions in the terms of renewal integral equations. The estimation is done through the Mean Value Theorem for Integrals (MeVTI) method after modifying the variable of the renewal integral equations. The accuracy of the estimation is measured by its comparison against the existing analytical approach of renewal functions, those are for Exponential, Erlang, Gamma, and Normal baseline failure distributions. The estimation of the renewal function for a Weibull baseline failure distribution as the results of the method is compared to that of the well-known numerical integration approaches, the Riemann-Stieljies and cubic spline methods. Keywords :    Mean Value Theorem for Integrals, Renewal Functions, Renewal Integral Equations.
Aplikasi Penentuan Tingkat Kesegaran Ikan Selar Berbasis Citra Digital Dengan Metode Kuadrat Terkecil
Authors: Bee Devit , Weku Winsy , Rindengan Altien
Published: July 2019

Ikan banyak mengandung nutrisi yang sangat bermanfaat bagi tubuh, namun seringkali ikan diperdagangkan dalam keadaan sudah mati juga dalam keadaan masih hidup. Untuk mengamati kesegaran ikan selar dilakukan dengan pengenalan perubahan warna yang tampak pada citra digital dengn menggunakan metode kuadrat terkecil. Tujuan dari penelitian ini adalah membangun sistem aplikasi pengelolahan citra untuk mendeteksi tingkat kesegaran ikan selar. Data yang gunakan adalah 10 sampel citra ikan selar yang di-photo setiap 1 jam selama 15 jam dan diperoleh 150 data gambar kemudian diolah dan dilakukan analisis dengan metode kuadrat terkecil. Proses pertama diawali dengan pengolahan citra dengan melakukan pemtotongan (cropping) pada bagian tepi mata citra original kemudian dilanjutkan dengan penyamaan ukuran (resize) menjadi 1000 x 1000 pixel dan pergantian format citra menjadi *.png. setelah gambar sudah diolah kemudian dilakukan perhitungan nilai rata-rata grayscale menggunakakn sistem aplikasi ‘Rata_rataGambar’ dan diperoleh persamaan yang disimpan sebagai data training pada sistem aplikasi. Setelah citra sudah diolah selanjutnya citra tersebut di-input pada sistem maka citra akan dikonversi kedalam bentuk grayscale dan ditampilkan pada tempat yang telah ditentukan bersamaan dengan histogram rgb dan grayscale kemudian dilakukan perhitungan dengan metode kuadrat terkecil. Proses terakhir kita lakukan pencocokan citra uji dengan citra yang disimpan sebagai data training dan diperoleh kesimpulan apakah citra itu (sangat segar, segar , cukup segar, tidak segar, atau sangat tidak segar ) , persentase ketidaksegaran ikan selar, dan lama waktu ikan selar mati. Penelitian ini menggunakan 150 sampel citra ikan selar dari ikan masih sangat segar sampai ikan sangat tidak segar (busuk) hasilnya menunjukan 125 citra sesuai dan 25 tidak sesuai dengan persentase akurasi sistem sebesar  83.333 %. Kata kunci  : Mata Ikan Selar, Pengolahan Citra Digital, Metode Kuadrat Terkecil.
Analisis Kandungan Klorofil Daun Mangga (Mangifera indica L.) pada Tingkat Perkembangan Daun yang Berbeda
Authors: Sumenda Lusia
Published: July 2019

AbstrakKajian tentang kandungan klorofil pada daun mangga dengan perbedaan warna pada tingkat perkembangan yang berbeda belum banyak dilakukan. Penelitian ini bertujuan untuk membandingkan kandungan klorofil daun mangga (Mangifera indica L.) pada tingkat perkembangan daun yang berbeda. Setelah daun diekstrak dengan alkohol 95%, kandungan klorofil diukur dengan menggunakan spektrometer tipe Novaspec III pada λ 649 dan 665 nm. Hasil penelitian menunjukkan perbedaan kandungan klorofil daun pada tingkat perkembangan yang berbeda.Kata kunci: daun mangga, klorofil, perkembanganAbstractThe study on chlorophyll concentration of mango leaf with different colour and different stage of development has not been conducted thoroughly. This study aimed to compare the chlorophyll concentration of mango leaf with different stage of development. After extracting leaf chlorophyll using alcohol 95%, chlorophyll concentration was measured using spectrometer (Novaspec III) on λ 649 and 665 nm. The result showed that the chlorophyll concentration was different among the leaves with different stages of development.Keywords: chlorophyll, development, mango leaf
Penentuan Ukuran Kelompok dan Densitas Tangkasi (Tarsius tarsier) di Cagar Alam Tangkoko Batuangus, Kota Bitung, Sulawesi Utara (Group Size and Density Determination of Tankasi (Tarsius tarsier) in The Nature Reserve Tangkoko Batuangus, Bitung, North Su
Authors: Lumente Ahmadin Awal , Saroyo Saroyo , Wahyudi Lalu , Papu Adelfia
Published: July 2019

Abstrak Tangkasi (Tarsius tarsier) merupakan primata primitif (Prosimi) endemik di Pulau Sulawesi dan beberapa pulau satelitnya. Mereka menempati beberapa tipe habitat, antara lain hutan primer dan sekunder, semak, mangrove, dan pertanian. Organisasi sosialnya ialah keluarga monogami hingga multimale-multifemale. Penelitian ini dilaksanakan dengan tujuan untuk menentukan ukuran kelompok tangkasi. Penelitian dilaksanakan di Cagar Alam Tangkoko Batuangus pada bulan Juli sampai Agustus 2012. Metode yang digunakan ialah survei pada sarang tangkasi dan dilakukan penghitungan secara sensus. Luas area pengamatan ialah 100 ha yang dibagi menjadi 100 plot berukuran 100 m x 100 m. Waktu pengamatan ialah pada pagi hari pada jam 05.00-06.00 untuk menentukan lokasi sarang pada satu plot, yang selanjutnya dilakukan sensus pada sore harinya. Hasil penelitian menunjukkan bahwa di dalam 100 ha ditemukan 41 sarang atau tempat tidur tangkasi, rata-rata ukuran kelompok ialah 4,95 ± 2,26 ekor dengan modus 4. Kata kunci: ukuran kelompok, tangkasi (Tarsius tarsier), Cagar Alam Tangkoko Batuangus Abstract Tangkasi (Tarsius tarsier) is a primitive species of Sulawesi primates that is distributed in Sulawesi Island and some satellite islands. This species occupies in several habitat types, such as primary and secondary forest, shrub, mangrove, and farming area. Their social organization is monogamous family to multi-male/multi-female group. This study was conducted to determine the group size of tangkasi in the Tangkoko Batuangus Nature Reserve from July to August 2012. The survey method was used in the tangkasi nests and the census measurement was applied to the total of individuals at each nest of the 100 ha area. The 100-ha-survey area was divided into 100 plots and the size of each plot was 100 m x 100 m. The observation was carried out to determine the nest location in each plot every morning (05.00-06.00 am) and followed by the census in the afternoon. The results showed that there were 41 groups of tangkasi in the 100 ha area, the average of group size was 4,95 ± 2,26 and the modus was 4. Keywords: group size, tangkasi (Tarsius tarsier), Tangkoko Batungus Nature Reserve
Analisis Bakteri secara Kuantitatif pada Jajanan Kue Ku di Pasar Tradisional Bersehati Kota Manado (Quantitative Bacterial Analysis of “Kue Ku” in Bersehati Traditional Market Manado City)
Authors: Laiya Nurpratiwi , Pelealu Johanis J , Singkoh Marina FO
Published: July 2019

Abstrak             Pangan jajanan masih beresiko terhadap kesehatan karena penanganannya sering tidak higienis, yang memungkinkan jajanan Kue Ku terkontaminasi mikroba. Penelitian ini bertujuan untuk menganalisis bakteri secara kuantitatif pada jajanan Kue Ku di Pasar Tradisional Bersehati Kota Manado. Penelitian ini dilakukan dengan cara mengisolasi bakteri pada medium diferensial PCA (Plate Count Agar) selama 48 jam pada suhu 37°C kemudian dimurnikan lagi dengan medium selektif MCA (Mac Conkey Agar) dan medium diferensial NA (Nutrient Agar). Hasil penelitian menunjukkan bahwa analisis kuantitas bakteri pada jajanan Kue Ku di Pasar Tradisional Bersehati Kota Manado telah memenuhi syarat mutu batas maksimum cemaran mikroba yaitu pada tempat 1 berkisar 4 x 101 CFU/mL  pada tempat 2 berkisar 3 x 101 CFU/mL dan pada tempat 3 berkisar 0,003 x 103 CFU/mL. Kata kunci: bakteri, koloni, kue jajanan Abstract “Kue Ku” as a kind of traditional cake is able to be contaminated by microbes because of unhygienic handling. This study aimed to analyze the bacteria quntitatively on “Kue Ku” cakes in Bersehati Traditional Market, Manado City. This study was conducted by isolating bacteria on PCA (Plate Count Agar) differential medium for 48 hours at 37 ° C then purified again with MCA (Mac Conkey Agar) selective medium and NA (Nutrient Agar) differential medium. The results showed that the number of bacteria on “Kue Ku” cake at Bersehati Traditional Market, Manado City fulfilled the quality requirement of maximum limit of microbial contamination, i.e. 4 x 101 CFU/mL (location 1), 3 x 101 CFU/mL (location 2), and 0.003 x 103 CFU/mL (location 3) . Keywords: bacteria, colony, traditional cake
Isolasi dan identifikasi bakteri asam laktat hasil fermentasi kol merah (Brassica oleracea L.) sebagai probiotik potensial (Isolation and identification lactic acid bacteria from red cabbage (Brassica oleracea L.) fermentation as potential probiotic)
Authors: Rambitan Grisella , Pelealu Johanis J , Tallei Trina E
Published: July 2019

AbstrakBakteri asam laktat merupakan kelompok bakteri yang menghasilkan asam laktat sebagai produk utama dalam fermentasi. Bakteri ini sering disebut probiotik sebab memberikan dampak positif bagi tubuh manusia. Setiap spesies bakteri asam laktat memiliki efek probiotik yang berbeda-beda sehingga diperlukan seleksi dan identifikasi untuk mendapatkan strain probiotik yang baik. Identifikasi bakteri asam laktat dalam penelitian ini menggunakan metode identifikasi molekuler dengan gen penanda 16S rRNA. Bakteri asam laktat dari fermentasi kol merah memiliki kemiripan 100% dengan Weissella cibaria dan Weissella confusa. Analisis filogenetik menunjukkan hubungan kekerabatan antara isolat bakteri asam laktat dari fermentasi kol merah dengan bakteri genus Weissella yang lain.Kata kunci: bakteri asam laktat, fermentasi, 16S rRNA, probiotik AbstractLactic acid bacteria is a group of bacteria that produce lactic acid as the main product in fermentation. These bacteria are often called probiotics because can confer a positive impact on the human body. Each species of lactic acid bacteria has a different probiotic effect that requires selection and identification to obtain a good probiotic strain. The identification of lactic acid bacteria in this study used a method of molecular identification with a marker gene of 16S rRNA. Lactic acid bacteria from red cabbage fermentation have a 100% similarity to Weissella cibaria and Weissella confusa. Phylogenetic analysis showed a relationship between lactic acid bacteria isolates from red cabbage fermentation with bacteria from the other Weissella genus.Keywords: lactic acid bacteria, fermentation, 16S rRNA, probiotics
Identifikasi Senyawa Bioaktif Alga Merah Halymenia durvillei (Identification Bioactive Compounds of Algae Halymenia durvillei)
Authors: Singkoh Marina , Mantiri Desy , Lumenta Cyska , Manoppo Hengky
Published: July 2019

Identifikasi Senyawa Bioaktif  Alga Merah Halymenia durvillei(Identification Bioactive Compounds of Algae Halymenia durvillei) Marina Flora Oktavine Singkohˡ)*, Desy Maria Helena  Mantiri ²) Cyska Lumenta²), Henky Manoppo²)1) Program Studi Biologi FMIPA Universitas Sam Ratulangi, Manado 951152) Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi, Manado *Email korespondensi: marinasingkoh16@gmail.com  Diterima 17 Februari  2019, diterima untuk dipublikasikan 28 Februari  2019  Abstrak Alga merah memiliki kemampuan untuk memproduksi metabolit sekunder yang bersifat sebagai senyawa bioaktif. Penelitian ini bertujuan untuk mengidentifikasi senyawa bioaktif pada alga merah Halymenia durvillaei. yang diambil dari pesisir Pantai Desa Rendingan, Kecamatan Tabukan Kepulauan Sangihe, Sulawesi Utara dengan metode skrining Fitokimia. Hasil penelitian  menunjukan bahwa alga merah  Halymenia durvillaei mengandung senyawa-senyawa  bioaktif. Berdasarkan hasil penelitian skrining fitokimia dapat disimpulkan bahwa  ekstrak etanol Halymenia durvillaei  mengandung senyawa bioaktif alkaloid, fenol, saponin, tanin, dan steroid.Kata Kunci: Halymenia durvillaei,  senyawa bioaktif,  fitokimia  Abstract Red algae have the ability to produce secondary metabolites that are bioactive compounds. This study aims to identify bioactive compounds in Halymenia durvillaei red algae taken from the coast of Rendingan Village Beach, Tabukan District, Sangihe Islands, North Sulawesi with the phytochemical screening method. The results showed that Halymenia durvillaei red algae contained bioactive alkaloid compounds. Based on the results of the phytochemical screening study it can be concluded that the Halymenia durvillaei ethanol extract contains bioactive alkaloid compounds, phenols, saponins, tannins, and steroids.Keywords: Halymenia durvillaei, bioactive compounds,  phytochemicals
KARAKTERISTIK MORFOMETRIK DAN FAKTOR KONDISI KERANG TOTOK (Polymesoda erosa) DI HUTAN MANGROVE DESA NUSAJAYA KECAMATAN WASLEI SELATAN KABUPATEN HALMAHERA TIMUR MALUKU UTARA
Authors: Rumbiak Alfrina , Tamanampo Jan F.W.S. , Manu Gaspar D.
Published: July 2019

Clam, Polymesoda erosa is species that live in sandy and muddy substrata of mangrove ecosystem. The aims of this study are to look at the relationship of the shell length and width,body thiekness, body weight and organ weight based on class size to determine the growth. The study also was designed to reveal the conditional factor based on the clam class size. The samples were collected during the day at lowest tide in January 2014. The total is 153 individuals of Polymesoda erosa clam were collected during the study. The result shows thare is a strong positive relationship between body lenght and body weight as shown within  the regression analysis with intercept (a) = 0,470779,  regression coefficient (b) = 0,69095 and correlation coefficient (r) = 0,406357. Based on the r value, it can be concluded that there is strong relationship regarding the length and weight increment as much as 40,63 %.   Keywords : Characteristics Morphometrics and Shellfish totok condition factor Nort Maluku ABSTRAK .         Kerang  totok (Polymesoda erosa) adalah salah satu jenis moluska dalam kelas bivalvia yang hidup di ekosistem mangrove pada daerah yang bersubstrat pasir dan berlumpur. Penelitian ini bertujuan. mengetahui kisaran ukuran panjang cangkang,,lebar cangakang, tubuh, berat tubuh, dan berat organ lunak, selanjutnya mengetahui pertambahan panjang, lebar cangkang, tebal tubuh, berat tubuh, dan berat organ lunak berdasarkan kelas ukuran, dan juga  mengetahui hubungan pertumbuhan panjang cangkang, dan berat cangkang, dan  mengetahui faktor kondisi kerang di setiap kelas ukuran.  Pengambilan sampel di lakukan pada siang hari saat surut terendah pada bulan januari 2014. Berdasarkan kegiatan penelitian di wilayah pesisir Desa Nusajaya Kecamatan Waslei Selatan Kabupaten Halmahera Timur Maluku Utara, dikumpulkani  153 individu kerang totok (Polymesoda erosa). Hasil analisis regresi menunjukkan bahwa setiap pertambahan panjang cangkang akan diikuti dengan pertambahan berat secara proporsional mengikuti nilai Intercept (a) = 0.470779, dan koefisien regresi (b) = 0,690957. Niilai koefisien korelasi (r) = 0. 406357 menyatakan  adanya korelasi positif yang menerangkan terdapat keeratan hubungan  antara pertambahan panjang cangkang dengan pertambahan berat berat tubuh sebesar 40.63 %   Kata kunci :Karakteristik Morfometrik dan Faktor kondisi KerangTotok Maluku utara   1Bagian dari skripsi 2Mahasiswa Program Studi Manajemen Sumberdaya Perairan FPIK-UNSRAT 3Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi
The Growht of Acropora Formosa Fragment in Different Sizes Using Transplantation Method in Lembeh Strait
Authors: Hermanto Bambang
Published: July 2019

Transplantation method is an effective way for rehabilitating the degraded coral reef. Acropora formosa is one of the coral species that is used for transplantation method which is a kind of branching corals that have a rapid growth up to 8 cm/year. This study aimed to determine the effect of coral fragment size to the coral growth, survival rate and the growth rate of Acropora formosa at several locations in the Lembeh Strait. The research was conducted in February - June 2015 using concrete block transplantation method. The results showed that Acropora formosa with the initial fragment length 8 cm have the highest of survival rates (84 %), absolute growth (0,8 cm) and growth rate (0,201 cm/month). The initial fragments length of Acropora formosa can affect the coral growth in transplantation method (p <0.05). Keywords: Coral transplantation, Acropora formosa, Fragment size, North Sulawesi ABSTRAK Metode transplantasi merupakan metode yang cukup efektif untuk merehabilitasi kondisi terumbu karang yang mengalami degradasi. Salah satu jenis yang sering digunakan untuk metode transplantasi yaitu jenis Acropora formosa yang merupakan jenis karang bercabang yang memiliki pertumbuhan yang cukup cepat hingga 8 cm/tahun. Penelitian ini bertujuan untuk mengetahui pengaruh ukuran fragmen terhadap pertumbuhan karang, tingkat kelangsungan hidup serta laju pertumbuhan fragmen karang Acropora formosa pada beberapa lokasi di perairan Selat Lembeh. Penelitian dilakukan pada bulan Februari - Juni 2015 dengan menggunakan metode transplantasi lepas dasar (substrat beton). Hasil penelitian menunjukkan bahwa fragmen karang Acropora formosa dengan panjang fragmen awal 8 cm memiliki tingkat kelangsungan hidup, pertumbuhan mutlak dan laju pertumbuhan tertinggi yaitu mencapai 84% (survival rate),  0,8 cm (pertumbuhan mutlak tinggi) dan 0,201 cm/bln (laju pertumbuhan). Ukuran panjang awal fragmen Acropora formosa cukup berpengaruh terhadap pertumbuhan karang (p<0,05). Kata kunci: Transplantasi karang, Acropora formosa, ukuran fragmen, Sulawesi Utara
Reef Fishes Colonization Rate Around Artificial Reef in Putus-putus Island, South-East Minahasa District
Authors: Lalamentik Laurentius T. X. , Rembet Unstain N. W. J. , Wantasen Adnan S.
Published: July 2019

A comprehensive research effort was directed to increase the ecological role of Putus-Putus island coral reefs. This study was an implementation of artificial reef technology as fish colonization locality. The artificial reefs were made of 20x20x100 cm-concrete blocks placed in 6 levels and located at the depth of 8-10 m. Reef fish observations were done three times in two locations. Environmental parameters, such as temperature, salinity and visibility, were also measured. Environmental parameters (temperature, salinity a. Water temperature (29.65oC and 29.64oC) supported the coral growth as well. Salinity distribution  was not significantly different among the study sites.  This study also found 37 reef fish species belonging to 18 families. Number of species varied with observed time and localities. Total number of individuals increased with number of fish species. Mean number of individuals and species of reef fish in locality B were higher than those in locality A. Moreover, the reef fish colonization rate in the study site followed the model y = 4.3801e0.5249x with R2= 0.9297 in the strait and y = 5.0397e0.5493x  with R2= 0.9297 for the Bay. Keywords: Artificial reefs, reef fish. Abstrak Suatu upaya penelitian yang komprehensif diarahkan untuk peningkatan fungsi ekologi terumbu karang Pulau Putus-Putus. Penelitian ini berupa penerapan teknologi terumbu buatan sebagai tempat hunian ikan. Terumbu buatan terbuat dari balok cor beton berukuran 20x20x100 cm bersusun 6 dan ditempatkan pada kedalaman 8-10 m. Pengamatan ikan karang dilakukan 3 kali di 2 lokasi berbeda. Parameter lingkungan, seperti suhu, salinitas, dan kecerahan, juga diukur.    Hasil pengukuran yang diperoleh (29,65 oC dan 29,64 oC) termasuk suhu yang optimal untuk pertumbuhan karang. Dari hasil penelitian, ditemukan 37 spesies yang masuk dalam 18 famili ikan karang. Jumlah spesies yang ditemukan bervariasi pada setiap waktu dan lokasi pengamatan. Pengambilan spesies ikan karang dilakukan pada 2 lokasi dengan masing-masing lokasi dilakukan 3 kali pengambilan sampel. Berdasarkan hasil yang diperoleh (tabel 03) dapat dilihat bahwa jumlah individu bertambah seiring dengan banyaknya jumlah spesies ikan karang yang didapat. Rata-rata jumlah individu dan jumlah spesies ikan karang pada lokasi B lebih banyak. Laju hunian ikan karang di lokasi penelitian mengikuti model y = 4.3801e0.5249x dengan R2= 0,9297 untuk lokasi Selat dan y = 5.0397e0.5493x  dengan R2= 0,9297 untuk lokasi Teluk. Kata kunci : Terumbu buatan, ikan karang
Dissolved Oxygen and Apparent Oxygen Utilization in Lembeh Strait Waters, North Sulawesi
Authors: Patty Simon I
Published: July 2019

The observation of dissolved oxygen level and Apparent Oxygen Utilization (AOU) in Lembeh Strait Waters was conducted in January, February, June and July 2016. The objective of this research is to know the condition of dissolved oxygen and Apparent Oxygen Utilization (AOU). The results of the analysis showed that dissolved oxygen levels in the surface layer and near the bottom ranged from 6.00-6.56 mg/l and 5.59-6.17 mg/l. Based on the values of temperature and salinity obtained from this study, solubility, oxygen saturation degree and AOU value at the surface layer were calculated. In the surface layer the AOU values are positive, ranging from 0.10-0.72 mg/l, while near the bottom, negative and positive AOU values were balanced, ranging from -0.23-0.42 mg/l. The concentration of dissolved oxygen in the Lembeh Strait waters has not shown negative impact on the aquatic environment and is still in accordance with sea water quality standards for marine biota.Keywords: Dissolved oxygen, apparent oxygen utilization (AOU), Lembeh Strait. ABSTRAK         Pengamatan kadar oksigen terlarut dan Apparent Oxygen Utilization (AOU) di Perairan Selat Lembeh dilaksanakan pada bulan Januari, Februari, Juni dan Juli 2016. Penelitian ini bertujuan untuk mengetahui kondisi oksigen terlarut dan Apparent Oxygen Utilization (AOU). Hasil analisa menunjukkan bahwa kadar oksigen terlarut di lapisan permukaan dan dekat dasar berkisar antara 6,00-6,56 mg/l dan 5,59-6,17 mg/l. Berdasarkan nilai suhu dan salinitas yang diperoleh dari penelitian ini telah dihitung daya larut, derajat kejenuhan oksigen dan nilai AOU pada lapisan permukaan. Di lapisan permukaan nilai AOU semuanya positip berkisar antara 0,10-0,72 mg/l dan di dekat dasar nilai AOU negatip dan positip berimbang, berkisar antara       -0,23-0,42 mg/l. Konsentrasi oksigen terlarut di perairan Selat Lembeh belum menunjukkan dampak negatip terhadap lingkungan perairan dan masih sesuai dengan baku mutu air laut untuk biota laut. Kata Kunci: Oksigen terlarut, apparent oxygen utilization (AOU), Selat Lembeh.
Morphometric Aspects of Scad Decapterus macrosoma Bleeker, 1851 in Cape of Salonggar Regency
Authors: Panaha Mediyanto Samuel , Manginsela Fransine B , Salaki Meiske S.
Published: July 2019

This study aims to determine the biological appearance of globe fish that includes size distribution, growth pattern, sex ratio and maturity level of gonad (TKG) in Tanjung Salonggar Melonguane waters of Talaud Islands Regency. Sampling was conducted from May to July 2017. Decapterus macrosoma has found during the study were 268 with total size of 150 - 244 mm and the weight ranged from 34 to 142 grams. Kite fish caught in Tanjung Salonggar has a negative allometric growth type that is the length increase faster than weight gain (b <3). The sex ratio of male fish and female fish is equal to 1: 1, with maturity level of Gonad (TKG) I up to TKG V. The highest gonadal maturity level is found in June and July, both male and female fish, while in May fish which is caught predominantly by an immature fish gonad. Keywords: Biological appearance, Decapterus macrosoma, growth pattern.AbstrakPenelitian ini bertujuan untuk mengetahui tampilan biologis ikan layang yang meliputi sebaran ukuran, pola pertumbuhan, rasio kelamin dan tingkat kematangan gonad (TKG) di Perairan Tanjung Salonggar Melonguane Kabupaten Kepulauan Talaud. Pengambilan sampel dilakukan pada bulan Mei sampai bulan Juli 2017. Ikan layang Decapterus macrosoma yang diperoleh selama penelitian sebanyak 268 ekor dengan Sebaran ukuran panjang total 150 – 244 mm dan berat berkisar 34 – 142 gram. Ikan layang yang tertangkap di Tanjung Salonggar memiliki tipe pertumbuhan allometrik negatif yaitu pertambahan panjang lebih cepat dari pertambahan berat (b < 3). Rasio kelamin ikan jantan dan ikan betina adalah seimbang  yaitu 1 : 1, dengan Tingkat Kematangan Gonad  (TKG ) I sampai dengan TKG V. Tingkat kematangan gonad tertinggi ditemukan pada bulan Juni dan Juli, baik ikan jantan maupun ikan betina, sementara pada bulan Mei ikan yang tertangkap didominasi oleh ikan yang belum matang gonad.Kata kunci : Tampilan biologis, Decapterus macrosoma, Pola pertumbuhan.
Studi Kasus Pada Pasien Dengan Masalah Kesehatan Ispa Dikelurahan Barombong Kecamatan Tamalate Kota Makassar
Authors: Mulat Dr. Trimaya Cahya , Suprapto Suprapto
Published: July 2019

Latar belakang;tujuan pembangunan nasional dibidang kesehatan adalah mewujudkan kesejahteraan rakyat untuk mencapai hidup sehat bagi penduduk guna mewujudkan kesehatan masyarakat yang optimal sebagai salah satu unsur kesejahteraan masyarakat. Penelitian ini bertujuan untuk mengetahui gambaran secara umum tentang pelaksanaan asuhan keperawatan dengan masalah kesehatan penyakit Infeksi Saluran Pernafasan Akut (ISPA). Metode penelitian yang digunakan adalah metode studi kasus adalah studi yang mengeksplorasi suatu masalah keperawatan dengan terperinci, memiliki pengambilan data yang mendalam dan menyertakan berbagai sumber informasi. Hasil penelitian setelah di lakukan asuhan keperawatan terdapat masalah kesehatan akibat kondisi lingkungan yang  tidak sehat serta kurang pengetahuan, didapatkan gambaran bahwa dalam menentukan suatu rencana kedepan, sangat tergantung pada sumber daya yang ada dalam keluarga, baik sumber daya finansial maupun sumber daya manusia dan kesadaran tentang pentingnya kesehatan pada setiap anggota keluarga perlu ditanamkan, pentingnya personal hygiene serta kesehatan lingkungan yang dibutuhkan untuk proses penyembuhan. Disamping itu kita tetap memberi motivasi pada keluarga untuk memanfaatkan fasilitas kesehatan yang ada. berusaha menerapkan pengetahuan yang diperolehnya baik secara verbal, sikap dan psikomator.
Analisis Pengaruh Informasi Laporan Keuangan terhadap Keberlanjutan Laba (Earnings Sustainability) pada Lembaga Keuangan Syariah
Authors: Adam Dayun Mahesa Dewi , Harto Prayogo P.
Published: July 2019

The issue will be discussed is the effect of financial information to earningssustainability that focuses on case studies of BSM. Operating profitof BSM wasfluctuated from year to year, so it is necessary to know the extent of effect fromfinancial information to reflects the rate of profit. Financial information that is usedare the components of financial statements, that: Operating Cash Flow (AKO),Temporary Syirkah Funds (DST), and Zakat of BSM (ZAKAT) as the independentvariable and Operating Income (LO) as the dependent variable. The method ofanalysis used in this research is the multiple linear regression analysis and through thetesting phase of classical assumption that the testing conducted on the annual financialstatements of BSM that the years start from 1999 to 2013. Multiple regression resultsshow that all the independent variables as the information of financial statement inthis study had a positive and significant influence to the dependent variable,sustainability earnings. So it can be concluded that information of financial statementshave an important role in assessing the sustainability earnings of BSM.
Pengukuran Kinerja Bank Umum Syariah Dengan Maqasid Index Dan Sharia Conformity And Profitability (SCNP)
Authors: Prasetyowati Lia Anggraeni , Handoko Luqman Hakim
Published: July 2019

This study aims to measure the performance of Islamic banking by using maqasid sharia Framework and SCnP model, which both of the models have been adapted to the characteristics of Islamic banking. Research carried out on seven Islamic Commercial Banks (BUS) for five years, from 2010 to 2014. The results by using maqasid index model shows that there are variations and fluctuative performance between BUS. The total of maqasid index over the past five years are in the range from 0,16901 to 0,34297. Bank Muamalat Indonesia is considered as the most stable BUS on maqasid sharia performance during the period of observation. This statement can be concluded from the BMI total index which always exceeds 0,30 and always got the first rank or second rank in each year, except in 2014, where in 2014 a decline of performance simultaneously happened on the 6 samples of BUS including BMI. Next, the performance measurement by using SCnP model, showed that during five years most of the BUS in Indonesia are at LRQ (Lower Right Quadrant) and LLQ (Lower Left Quadrant), it means that most of BUS in Indonesia have high sharia conformity but low profitability, or have low sharia conformity and low profitability. BMI decide as the best performance bank by Using SCnP model. It can be concluded as we know that BMI is the most consistent bank in URQ. Measurement using maqasid index and SCnP model show not only Islamic banks with highest total index can reach URQ. It can be concluded from BPS which two times get the first rank but BPS can not reach URQ.
Komparasi Kinerja Perbankan Syariah Di ASIA Dengan Pendekatan Maqasid Syariah
Authors: Adzhani Rilanda , Rini Rini
Published: July 2019

The purpose of this research was to analyze whether there are differences the performance of Islamic banking in Asia, based on the concept of Maqasid al-Shari’ah, using MI (Maqasid Index) value. This research was using data from financial report and annual report which were provided by each Islamic bank sample. This research was using 3 samples of Islamic banks for each country (Indonesia, Malaysia, Iran, Saudi Arabia, United Arab Emirates, Kuwait, and Qatar), so the total sample of Islamic banks were 21 Islamic banks. The total observation were 63 during three years period (2013-2015). The Kolmogorov-Smirnov tests were used to test the normality of data and the hypothesis testing was using Analysis of Variance (ANOVA). The result of this research showed that MI value, second sharia objectives called establishing justice, and third sharia objectives called public interest in Islamic banking in Indonesia showed no significant difference with Islamic banking in Malaysia, Iran, Saudi Arabia, United Arab Emirates, Kuwait, and Qatar
Determinasi Tingkat Pengungkapan Bank Syariah Di Beberapa Negara
Authors: Septyan Krisno
Published: July 2019

The purpose of this study was determine the impact of Shariah Supervisory Boards’ Characteristic and Audit Firm Size against Disclosure Level. Shariah Supervisory Boards (SSB)’s Characteristic measured with Islamic Governance (IG) Score are include existent, background of education (economics and syariah), experience in economic (cross-membership and reputation in economics) and number of SSB. Audit firm size was proxied with dummy between big4 and non big4. For disclosure level measured with formulating disclosure index based on Shariah Enterprise Theory. Formulating index is compilation from few index in previously researchs. Sampel from six countries are Indonesia, Malaysia, Bahrain, Qatar, Iran and United Kingdom. Result show that all independent variables are significant to disclosure levels both with normal measure and sensitivity test
Pengungkapan Kinerja Sosial Perbankan Syariah di Indonesia
Authors: Mubarak Darihan , Pramono Sigit , Bayinah Ai Nur
Published: July 2019

The research aims to determine the disclosure of the social performance of Islamicbanking based on the ISR index. The method used in this research is qualitativecontent analysis. Qualitative content analysis is also called Ethnographic ContentAnalysis (ECA), which is a combination of objective content analysis and participantobservation where researchers interact with documentation materials. The populationin this study are all Islamic Commercial Banks (BUS) in Indonesia with a sample ofBUS which has published annual reports for the 2015-2017 period using purposivesampling method. From the assessment results using the ISR index, it was found thatBSM occupies the highest disclosure value in the 2015-2017 period. The average peryear shows that the reporting of social performance of Islamic Bank tends to increasewith a good predicate.
PROPOSAL OF PROCEDURE FOR IDENTIFICATION OF MENÉTREY–WILLAM (M-W-3) PLASTICITY SURFACE OF HOMOGENEOUS AND HOLLOW MASONRY UNITS
Authors: Jasiński Radosław
Published: July 2019

The article presents the author’s proposal to determine the parameters of the Mentérey–Willam (M-W-3) plasticity surface of the homogeneous masonry elements made of autoclaved aerated concrete (AAC) and vertically hollow calcium-silicate (Ca-Si) masonry units. The uniaxial and triaxial tests of AAC samples in a standard Hoek’s cell was performed while the hollow units made of silicate were tested on a custom-made test stand. By performing statistical analyses, the shape of the meridians of the surface was determined, and then the eccentricity e of the elliptical function was identified.
OSSOS. XIV. The Plane of the Kuiper Belt
Authors: Van Laerhoven Christa , Gladman Brett , Volk Kathryn , Kavelaars J. J. , Petit Jean-Marc , Bannister Michele T. , Alexandersen Mike , Chen 陳 Ying-Tung 英同 , Gwyn Stephen D. J.
Published: July 2019

The orbits of solar system objects are subject to perturbations by other massive bodies and slowly precess about a forced (averaged) plane. Warps in the plane come from the effects of the total planetary system, so discrepancies from expectation can show the presence of any unseen planets. We investigate the orbital inclination distribution from 42.4 to 150 au with the nonresonant trans-Neptunian discoveries and the survey simulator of the Outer Solar System Origins Survey (OSSOS). We statistically determine local forced planes and the widths of the populations’ inclination distributions. Between the ν
18 (near 40.3 au) and the 2:1 (at 47.5 au), the derived forced plane and the expected forced plane (from secular perturbations due to the known planets) match very well. As in previous studies, we reject the ecliptic as the forced plane. We also reject the invariable plane inside of 44.4 au, beyond which the forced plane starts approaching the invariable plane. From 44.4 to 150 au the forced plane is consistent with the invariable plane, as expected based on the known planets. The dynamically cold Kuiper belt (between the ν
18 and the 2:1 resonance) is best fit with a free inclination width of only ≃1.°75, strongly limiting its past perturbation. The dynamically excited populations have broader inclination distributions: the hot Kuiper belt is ≃14° wide, and nonresonant orbits in the semimajor axis range beyond the 2:1 resonance out to 150 au have an inclination width of ≃17°. The OSSOS data do not strengthen claims of present additional Mars-mass planets within ∼100 au.
Stellar Evolution in Real Time. I. Models Consistent with the Direct Observation of a Thermal Pulse in T Ursae Minoris
Authors: Molnár László , Joyce Meridith , Kiss László L.
Published: July 2019

Most aspects of stellar evolution proceed far too slowly to be directly observable in a single star on human timescales. The thermally pulsing asymptotic giant branch (AGB) is one exception. The combination of state-of-the-art modeling techniques with data assimilated from observations collected by amateur astronomers over many decades provide, for the first time, the opportunity to identify a star occupying this precise evolutionary stage. In this study, we show that the rapid pulsation period change and the associated reduction in radius in the bright, northern variable star T Ursae Minoris are caused by the recent onset of a thermal pulse (TP). We demonstrate that T UMi transitioned into a double-mode pulsation state, and we exploit its asteroseismic features to constrain its fundamental stellar parameters. We use evolutionary models from MESA and linear pulsation models from GYRE to track simultaneously the structural and oscillatory evolution of models with varying mass, and we apply a sophisticated iterative sampling scheme to achieve time resolution ≤10 yr at the onset of the relevant TPs. We report an initial mass of 2.0 ± 0.15 M
⊙ and an age of 1.17 ± 0.21 Gyr for T UMi. This is the most precise mass and age determination for a single AGB star ever obtained. The ultimate test of our models will be the continued observation of its evolution in real time: we predict that the pulsation periods in T UMi will continue shortening for a few decades before they rebound and begin to lengthen again, as the star expands in radius.
Insight-HXMT Observations of Swift J0243.6+6124 during Its 2017–2018 Outburst
Authors: Zhang Yue , Ge MingYu , Song LiMing , Zhang ShuangNan , Qu JinLu , Zhang Shu , Doroshenko Victor , Tao Lian , Ji Long , Güngör Can , Santangelo Andrea , Shi ChangSheng , Chang Zhi , Chen Gang , Chen Li , Chen TianXiang , Chen Yong , Chen YiBao , Cui Wei , Cui WeiWei , Deng JingKang , Dong YongWei , Du YuanYuan , Fu MinXue , Gao GuanHua , Gao He , Gao Min , Gu YuDong , Guan Ju , Guo ChengCheng , Han DaWei , Hu Wei , Huang Yue , Huo Jia , Jia ShuMei , Jiang LuHua , Jiang WeiChun , Jin Jing , Jin YongJie , Li Bing , Li ChengKui , Li Gang , Li MaoShun , Li Wei , Li Xian , Li XiaoBo , Li XuFang , Li YanGuo , Li ZiJian , Li ZhengWei , Liang XiaoHua , Liao JinYuan , Liu CongZhan , Liu GuoQing , Liu HongWei , Liu ShaoZhen , Liu XiaoJing , Liu Yuan , Liu YiNong , Lu Bo , Lu XueFeng , Luo Tao , Ma Xiang , Meng Bin , Nang Yi , Nie JianYin , Ou Ge , Sai Na , Sun Liang , Tan Ying , Tao WenHui , Tuo YouLi , Wang GuoFeng , Wang HuanYu , Wang Juan , Wang WenShuai , Wang YuSa , Wen XiangYang , Wu BoBing , Wu Mei , Xiao GuangCheng , Xiong ShaoLin , Xu He , Xu YuPeng , Yan LinLi , Yang JiaWei , Yang Sheng , Yang YanJi , Zhang AiMei , Zhang ChunLei , Zhang ChengMo , Zhang Fan , Zhang HongMei , Zhang Juan , Zhang Tong , Zhang Wei , Zhang WanChang , Zhang WenZhao , Zhang Yi , Zhang YiFei , Zhang YongJie , Zhang Zhao , Zhang ZiLiang , Zhao HaiSheng , Zhao JianLing , Zhao XiaoFan , Zheng ShiJie , Zhu Yue , Zhu YuXuan , Zou ChangLin ,   (Insight-HXMT collaboration)
Published: July 2019

The recently discovered neutron star transient Swift J0243.6+6124 has been monitored by the Hard X-ray Modulation Telescope. Based on the obtained data, we investigate the broadband spectrum of the source throughout the outburst. We estimate the broadband flux of the source and search for possible cyclotron line in the broadband spectrum. However, no evidence of line-like features is found up to 150 keV. In the absence of any cyclotron line in its energy spectrum, we estimate the magnetic field of the source based on the observed spin evolution of the neutron star by applying two accretion torque models. In both cases, we get consistent results with B ∼ 1013 G, D ∼ 6 kpc and peak luminosity of >1039 erg s−1, which makes the source the first Galactic ultraluminous X-ray source hosting a neutron star.
A Double-modulation Effect Detected in a Double-mode High-amplitude δ Scuti Star: KIC 10284901
Authors: Yang Tao-Zhi , Esamdin Ali
Published: July 2019

In this paper, we present an analysis of the pulsating behavior of Kepler target KIC 10284901. The Fourier transform of the high-precision light curve reveals seven independent frequencies for its light variations. Among them, the first two frequencies are main pulsation modes: F0 = 18.994054(1) day−1 and F1 = 24.335804(4) day−1; the ratio F0/F1 = 0.7805 classifies this star as a double-mode high-amplitude δ Scuti (HADS) star; another two frequencies, f

m1 = 0.4407 day−1 and f

m2 = 0.8125 day−1, are detected directly, and the modulations of f

m1 and f

m2 to F0 and F1 modes (seen as quintuplet structures centered on these two modes in the frequency spectrum) are also found. This is the first detection of a double-modulation effect in the HADS stars. The features of the frequency pattern and the ratio (f

m1/f

m2 ≈ 1:2), as well as the cyclic variation of amplitude of the two dominant pulsation modes, which seem to be similar to that in Blazhko RR Lyrae stars, indicate this modulation might be related to the Blazhko effect. A preliminary analysis suggests that KIC 10284901 is in the bottom of the HADS instability strip and situated in the main sequence.
The Observational Evidence for the Internal Excitation of Sunspot Oscillations Inferred from the Fe i 5435 Å Line
Authors: Cho Kyuhyoun , Chae Jongchul , Lim Eun-kyung , Yang Heesu
Published: July 2019

The umbral oscillations of velocity are commonly observed in the chromosphere of a sunspot. Their sources are considered to be either the external p-mode driving or the internal excitation by magnetoconvection. Even though the possibility of the p-mode driving has been often considered, the internal excitation has been rarely investigated. We report the identification of the oscillation patterns that may be closely related to the events of internal excitation from the observations of velocity oscillations in the temperature minimum region of two sunspots. The velocities were determined from the spectral data of the Fe i 5435 Å line, a magnetically insensitive line, taken with the Fast Imaging Solar Spectrograph of the 1.6 m Goode Solar Telescope at the Big Bear Solar Observatory. As a result, we identified four oscillation patterns of 2.0 × 103 km coherent size that were clearly identified for about 7.9 minutes with an oscillation amplitude of 9.3 × 10−2 km s−1. The power of the oscillations in these centers was concentrated in the 3 minute band. All the oscillation centers were located above the umbral dots undergoing noticeable morphological and dynamical changes that may be regarded as an observable signature of small-scale magnetoconvection inside the umbrae. Our results support the notion that magnetoconvection associated with umbral dots inside sunspots can drive the 3 minute umbral oscillations.
Spectral Energy Distribution of Blue Stragglers in the Core of 47 Tucanae
Authors: Raso Silvia , Pallanca Cristina , Ferraro Francesco R. , Lanzoni Barbara , Mucciarelli Alessio , Origlia Livia , Dalessandro Emanuele , Bellini Andrea , Libralato Mattia , Anderson Jay
Published: July 2019

We have constructed the spectral energy distributions (SEDs) of a sample of blue straggler stars (BSSs) in the core of the globular cluster 47 Tucanae, taking advantage of the large set of high resolution images, ranging from the ultraviolet to the near-infrared, obtained with the Advanced Camera for Surveys/High Resolution Channel of the Hubble Space Telescope. Our final BSS sample consists of 22 objects, spanning the whole color and magnitude extension of the BSS sequence in 47 Tucanae. We fitted the BSS broadband SEDs with models to derive temperature, surface gravity, radius, luminosity, and mass. We show that BSSs indeed define a mass sequence, where the mass increases for increasing luminosity. Interestingly, the BSS mass estimates from the SED fitting turn out to be comparable to those derived from the projection of the stellar position in the color–magnitude diagram on standard star evolutionary tracks. We compare our results with previous, direct mass estimates of a few BSSs in 47 Tucanae. We also find a couple of supermassive BSS candidates, i.e., BSSs with masses larger than twice the turn-off mass, the formation of which must have involved more than two progenitors.
Contribution of the atmospheric channel to lead contamination of soils in the Arctic territories
Authors: Kotova EI , Kuznetsova IA , Kriauciunas VV , Iglovsky SA , Larionov NS
Published: July 2019

Although the Arctic territories have long been considered “the gold standard of purity”, global climate change and environmental pollution are having a significant impact on the state of Arctic ecosystems. In particular, industrial complexes combined with transboundary transport are having a negative impact. The aim of this work is to determine the contribution of atmospheric Pb to the contamination of soils of the Arctic territories using the trajectory statistics method which combines correlation and factor statistical processing approaches while taking the actual lead content in the upper soil horizon into account. In order to assess the transfer of pollutants, an analysis of multiannual air mass tracts and impurity transfer trajectories to certain points was carried out. The objects of study are the soil of the Khorey-Ver settlement, the basin of the Shapkin and Sula rivers, northeastern and southern Svalbard and the islands of the Southern Archipelago of Novaya Zemlya. It was established that the primary contribution to airborne pollution of the Nenets Autonomous District (NAO) during the summer period comes from sources located within a radius of about 400 km. Aerogenic influence of the mainland on the territory of Svalbard is practically absent, with the main atmospheric transport of substances coming from nearby marine areas. The transfer of impurities from the mainland to the Novaya Zemlya District is also insignificant. During the summer months, there is practically no airborne lead contamination of the island territories. Some influences on the territory of Novaya Zemlya and the NEO can be traced to sources on the Kola Peninsula, the coasts of the Barents and Kara seas, as well as long-distance transport from the southern regions. On the territory of the NAO, the number of heavy metal (HM) precipitations increases from west to east, possibly indicating a stronger impact of emissions from the Norilsk industrial hub than from the enterprises of the Kola Peninsula on this territory. In terms of seasonal dynamics, the island points are characterised by an increase in HM fluxes during the winter period; conversely, for the NAO territory, such an increase takes place during the summer. This discrepancy is primarily due to the changing nature of the atmospheric circulation.
Scolopsis lacrima, a new species of monocle bream (Teleostei, Perciformes, Nemipteridae) from New Caledonia
Authors: Nakamura Jumpei , Béarez Philippe , Motomura Hiroyuki
Published: July 2019

The new monocle bream Scolopsislacrimasp. nov. is described from a single specimen (213.6 mm standard length) collected from Grande-Terre Island, New Caledonia. The new species closely resembles S.meridiana, both species having the upper part of the pectoral-fin base with reddish blotch when fresh, two bands across the top of the snout, a dorsal scaled area on the head reaching anteriorly to between the anterior margin of the eye and anterior nostril, a similar number of lateral-line scales, and absence of a small antrorse spine below the eye. However, S.lacrimasp. nov. is distinguished from S.meridiana by having diagonal lines on the body absent (vs. 18–20 diagonal lines in the latter), a dark longitudinal band below the lateral line (vs. longitudinal lines absent), the caudal fin central area not patterned (vs. with several dark horizontal lines), a narrower body and shallower caudal peduncle.