bluuebunny/crossref_metadata_2025_split huggingface dataset:
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.
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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

Abstract
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.