Planets around active stars

We present the results of radial velocity measurements of two samples of active stars. The first sample contains field G and K giants across the Red Giant Branch, whereas the second sample consists of nearby young stars (d < 150 pc) with ages between 10 - 300 Myrs. The radial velocity monitoring program has been carried out with FEROS at 1.52 m ESO telescope (1999 - 2002) and continued since 2003 at 2.2 m MPG/ESO telescope. We observed stellar radial velocity variations which originate either from the stellar activity or the presence of stellar/substellar companions. By means of a bisector technique we are able to distinguish the sources of the radial velocity variation. Among them we found few candidates of planetary companions, both of young stars and G-K giants sample.Comment: 4 pages, 5 figures, to appear in the Proceedings of the ESO Workshop "Precision Spectroscopy in Astrophysics", eds. L. Pasquini, M. Romaniello, N.C. Santos, A. Correi

The Reactions of the Minority Towards Racism in Crash

Crash shows the life of a community in a multicultural city of Los Angeles in a variety of separate scenes. At the end of the story will be seen a common thread that connects each of the characters and events that they experience with other characters. The interaction of the players in the movie Crash is highly dominated by racial conflict as a result of racism. In the society nowadays, most people usually see racism only by how the majority discriminate the minority like what is reflected in Crash without knowing that Crash also portrays as vividly how the minority react towards the discrimination by the majority. For this reason, I am really interested in analyzing how the minority react towards racial discrimination by the majority and how the main characters of the minority react towards racism by the majority in Crash based on John P. Myers definition of reactions which are deviance, defiance, and avoidanc

Three-dimensional simulations of non-stationary accretion by remnant black holes of compact object mergers

(abridged) Three-dimensional hydrodynamic simulations with an Eulerian PPM code are presented for the time-dependent evolution of accretion tori around nonrotating and rotating stellar-mass black holes (BHs), using a pseudo-Newtonian gravitational potential to approximate the effects of general relativity. The initial configurations are assumed to be remnants of binary neutron star (NS) or NS+BH mergers and consist of a 4 solar mass BH with varied spin, girded by a torus with a mass between 0.01 and 0.2 solar masses. The evolution of tori without and with physical shear viscosity is simulated, using a realistic equation of state and following the energy loss and lepton number change due to neutrino emission by a neutrino-trapping scheme. The time-dependent efficiency of converting rest-mass energy to neutrinos is found to reach 10 percent, the efficiency of converting neutrino energy into a pair-photon fireball by neutrino annihilation can reach several percent. The rate of the latter process declines with time much less steeply than the total neutrino luminosity, because the ongoing protonization of the torus ensures a rather stable product of neutrino and antineutrino luminosities. The neutrino emission increases steeply with higher viscosity, larger torus mass, and larger BH spin in corotation with the torus. For rotation rates as expected for post-merger BHs (a > 0.5) and reasonable values of the alpha viscosity (alpha ~ 0.1), the considered tori release sufficient energy in neutrinos to account for the energetics of the well-localized short gamma-ray bursts recently detected by Hete and Swift, if collimation is invoked as predicted by hydrodynamic jet simulations.Comment: 23 pages, 15 figures (high resolution available upon request), accepted by Astron. Astrophys. Significantly shortened with respect to first versio

Pengelolaan Kawasan Industri Berwawasan Lingkungan Di Kota Dumai

Dumai City in playing its role in the future has five strategic industrial areas, namely the Dumai Industrial Area (KID) in Pelintung, Lubuk Gaung Industrial Area, Dock Yard Industrial Area, Bukit Kapur Industrial Area and an Industrial Estate in Bukit Timah. Industrial estate development is one of the means to develop an environmentally friendly industry and provide convenience and attractiveness to invest. This is in line with the mandate in Law Number 5 of 1984 concerning Industry that efforts to encourage industrial development need to be carried out through the construction of industrial locations, namely in the form of Industrial Estates. In order to accelerate the development of industrial estates referred to, the government has issued Government Regulation Number 24 of 2009 concerning Industrial Estates, in which every new industrial company after the enactment of this Government Regulation is obliged to enter Industrial Estates. The basis for consideration requires new industries to enter industrial estates so that the industries built are in the right and correct spatial layout, environmentally friendly, effective and efficient management and facilitate the planning and procurement of the necessary infrastructure. Eco-Industrial Park / Estate is a group of industry and service businesses located in a place where the actors in it jointly improve their environmental, economic and social performance through cooperation in managing environmental and resource issues

Pemodelan Indeks Harga Saham Gabungan (IHSG), Kurs, dan Harga Minyak Dunia dengan Pendekatan Vector Autoregressive

Vector autoregressive (VAR) merupakan salah satu analisis time series multivariate dimana dapat digunakan dalam memprediksi variabel dan berguna untuk menilai keterkaitan antara variabel. Tahapan-tahapan dalam metode VAR meliputi tahap identifikasi, estimasi parameter, dan cek diagnosa. Data yang digunakan dalam penelitian ini adalah Indek Harga Saham Gabungan (IHSG), kurs, dan harga minyak dunia pada periode 2011-2012. Dari hasil analisis didapatkan model VAR yang sesuai adalah VAR(4,1,0) dengan nilai AIC terkecil sebesar 15,7437. Selain itu hasil MAPE dan RMSE pada ketiga variabel yaitu variabel IHSG sebesar 1,85 dan 88,076; variabel kurs sebesar 0,89 dan 84,9237; sedangkan variabel harga minyak dunia sebesar 0,83 dan 0,009694

Suitability Index of Mangrove Ecotourism in Malang Regency

Recently mangrove ecosystems are constantly under pressure as a result of various human activities. Utilization of mangrove forests fullest possible without damaging the forest ecosystem is one of them is for recreation limited by means of ecotourism. The purpose of this study was to determine and analyze the suitability of mangrove eco-tourism in the regency of Malang. The method used in this research is descriptive method, using the techniques of research interviews and observation. The results showed that the mangrove vegetation found in the South Beach regency of Malang, there stands the main mangrove species, namely the Sonneratia alba, Rhizophora mucronata. Suitability index mangrove area for ecotourism activities in the South Coast Malang included in the appropriate category

Pemodelan Pertumbuhan Ekonomi Indonesia Menggunakan Data Panel Dinamis Dengan Pendekatan Generalized Method of Moment Arellano-Bond

Pertumbuhan ekonomi merupakan Perubahan aktivitas perekonomian dalam menghasilkan tambahan pendapatan masyarakat suatu negara dalam periode tertentu. Variabel-variabel ekonomi bersifat dinamis sehingga pada penelitian ini digunakan pemodelan menggunakan metode regresi data panel dinamis. Metode regresi data panel dinamis tidak hanya untuk mengetahui efek jangka pendek (short-run effect), namun juga efek jangka panjang (long-run effect). Faktor-faktor yang diduga mempengaruhi pertumbuhan ekonomi di Indonesia adalah investasi luar negeri, pengeluaran pemerintah dan penyerapan tenaga kerja. Berdasarkan hasil analisis estimasi Generalized Method of Moment (GMM) Arellano-Bond, variabel yang berpengaruh signifikan terhadap pertumbuhan ekonomi adalah investasi luar negeri dan pengeluaran pemerintah. Selanjutnya mendapatkan pemodelan dan mengetahui elastisitas jangka pendek dan jangka panjang. Elastisitas jangka pendek investasi luar negeri sebesar 0,00269 dan jangka panjang sebesar 0,08661. Hal ini menunjukkan bahwa setiap peningkatan 10 persen investasi luar negeri suatu provinsi, maka akan meningkatkan Produk Domestik Regional Bruto (PDRB) secara jangka pendek sebesar 0,0269 persen dan jangka panjang sebesar 0,8661 persen. Elastisitas jangka pendek pengeluaran pemerintah sebesar 0,00198 dan jangka panjang sebesar 0,06384. Hal ini menunjukkan bahwa setiap peningkatan 10 persen pengeluaran pemerintah suatu provinsi, maka akan meningkatkan PDRB secara jangka pendek sebesar 0,0198 persen dan jangka panjang sebesar 0,6384 persen

Pengelompokan Kecamatan di Pulau Madura Berdasarkan Sektor Pertanian Sebelum dan Setelah Berdiri Jembatan Suramadu

Pulau Madura memiliki potensi ekonomi yang cukup besar, terutama dari sektor pertanian. Artinya pertanian menjadi sektor andalan yang nampak dari perolehan PDRB terbesar yaitu sekitar 40%. Namun selama ini potensi di Madura masih dilakukan secara tradisional dan keterlibatan pemerintah terbilang kurang. Hal ini sangat disayangkan jika keberadaan Jembatan Suramadu secara umum sebagai aksesibilitas agar potensi yang ada di Madura dapat dimanfaatkan secara optimal namun Kenyataannya belum demikian. Perekonomian Madura akan tumbuh lebih baik apabila ada upaya serius dari berbagai pihak untuk mengembangkan industrialisasi yang berbasis pertanian. Oleh karena itu, pada penelitian ini dilakukan pengelompokan wilayah kecamatan sebelum dam setelah berdiri Jembatan Suramadu dan metode pengelompokan yang sesuai sehingga dapat mengetahui atau memilih secara cermat produk pertanian yang potensial untuk dikembangkan. Metode pengelompokan terbaik dinilai berdasarkan nilai Pseudo F terbesar, dengan 9 kelompok ward\u27s sebelum dan 11 kelompok ward\u27s setelah berdiri Jembatan Suramadu