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

Abstract

In this project, I would like to expose the reality happening in the Indonesian society through Science fiction graphic novel script and samples. This project focuses on how the live of my main character that represent particular condition of an individual in the society. It also focuses on the surival of the character as the individual in changing her future. The theme that is used in this project is the survival of the individual. I would also explore how fear distorted human in making a crucial decision in order to survive the adverse and unusual circumstance. To depict this reality through fiction, I am using the Timepunk, a sub-genre of science fiction as the genre of my work and bringing out the issue of the cure of leukemia as the main concern of my main character

Kajian Terhadap Beberapa Metode Penyusutan Dan Pengaruhnya Terhadap Perhitungan Beban Pokok Penjualan (Cost of Good Sold)

Every company must generate financial statement, that provide information about income, changes in financial position to whom that concerned. In preparing financial statement, each company has a power to choose the accounting methods and technics that recommended by Financial Accounting Standard. Accounting policies adopted by firm has a substanstial impact in financial statement.Therefore the company that has equal performance will report different result.This article try to present the impact of choosing depreciation method in calculating cost of goods sold

Sekilas Tentang Manajemen Pajak

Every tax payer, either personal or organization, where ever there are, they have an obligation to pay taxes. The obligation is written within the law and have to obey by all the tax payer without any exemption. Almost all tax payer tend to avoid the taxes responsibility. This should be acted wisely hence prevented from all tax's penalty. Using a good tax management, tax payer can do a tax saving without any infringe of the law regulation. The aim of this article is to introduce a basic concept of tax management in order to fulfill the right and obligation in taxes. Tax management will effective if it was arranged according the tax planning which are followed the tax regulation (tax avoidance) and without any tax evasion. The organized tax management should get a back up from the management, carry on ledger and appropriate tax administrative. Keywords: Tax management, tax avoidance, tax evasio

Basic physical parameters of a selected sample of evolved stars

We present the detailed spectroscopic analysis of 72 evolved stars, including the [Fe/H] determination for the whole sample. These metallicities, together with the Teff values and the absolute V magnitude derived from Hipparcos parallaxes, are used to estimate basic stellar parameters (ages, masses, radii, (B-V)o and log g using theoretical isochrones and a Bayesian estimation method. The (B-V)o values so estimated turn out to be in excellent agreement with the observed (B-V), confirming the reliability of the (Teff,(B-V)o) relation used in the isochrones. The estimated diameters have been compared with limb darkening-corrected ones measured with independent methods, finding an agreement better than 0.3 mas within the 1-10 mas interval. We derive the age-metallicity relation for the solar neighborhood; for the first time such a relation has been derived from observations of field giants rather than from open clusters and field dwarfs and subdwarfs. The age-metallicity relation is characterized by close-to-solar metallicities for stars younger than ~4 Gyr, and by a large [Fe/H] spread with a trend towards lower metallicities for higher ages. We find that the [Fe/H] dispersion of young stars (less than 1 Gyr) is comparable to the observational errors, indicating that stars in the solar neighbourhood are formed from interstellar matter of quite homogeneous chemical composition. The three giants of our sample which have been proposed to host planets are not metal rich, what is at odds with those for main sequence stars. However, two of these stars have masses much larger than a solar mass so we may be sampling a different stellar population from most radial velocity searches for extrasolar planets. We also confirm that the radial velocity variability tends to increase along the RGB.Comment: 17 pgs, 19 fig

Pengukuran Risiko pada Klaim Asuransi “X” dengan Menggunakan Metode Generalized Extreme Value dan Generalized Pareto Distribution

Asuransi merupakan suatu Perusahaan yang akanmelakukan proteksi atau melakukan pembayaran kepadanasabahnya terhadap kejadian yang tidak dapat diduga sepertikecelakaan, sakit dan lainnya. Pembayaran yang dilakukan olehperusahaan asuransi disebut dengan klaim. Pengukuran risikodalam klaim asuransi ini dilakukan dengan pendekatan EkstrimValue Theory (EVT). EVT cocok digunakan pada lingkupfinansial karena mampu menjelaskan kerugian yang ekstrim.Identifikasi nilai ekstrimterhadap klaim dilakukan denganmetode block maxima dan peaks Over threshold. Selanjutnyadilakukan pendugaan dan estimasi parameter metode ExtremeValue Theory-Generalized Pareto Distribution (EVT-GPD) danExtreme Value Theory-Generalized Extreme Value (EVTGEV).Hasil dugaan parameter distribusi tersebut selanjutnyadigunakan untuk menaksir risiko klaim (value at risk).Penelitianini menggunakan tiga jenis klaim yaitu A, B dan produk“Y”.Hasil penelitian menyimpulkan bahwa pendekatan EVT-GEVmerupakan pendekatan yang memberikan hasil taksiran risikoterkecil pada klaim. Kesimpulan lain diperoleh bahwa klaimproduk “Y” memiliki risiko terkecil

Urgensi Tuntutan Profesionalisme dan Harapan Menjadi Guru Berkarakter (Studi Kasus: Sekolah Dasar dan Sekolah Menengah Pertama di Kabupaten Batubara)

Penelitian ini bertujuan untuk mendeskripsikan peningkatan profesionalisme guru, kualitas anak didik, dan guru yang berkarakter. Populasi penelitian adalah guru SD di Provinsi Sumatera Utara dengan sampel yang diambil secara purposive, yaitu Kabupaten Batubara. Pengumpulan data dilakukan dengan teknik tes, wawancara, FGD, dan studi dokumentasi. Analisis data dilakukan secara kualitatif dan kuantitatif dengan teknik statistik deskriptif. Hasil penelitian memperlihatkan bahwa nilai UKG SD dan SMP tahun 2013 di Kabupaten Batubara secara nasional sangat rendah, bahkan ada yang memiliki nilai kompetensi 1,0. Nilai rata-rata kompetensi guru hanya sebesar 39,61 untuk guru SD, masih berada di bawah nilai rata-rata secara nasional dan Provinsi Sumatera Utara. Nilai UKG SMP sebesar 46,86 masih berada di bawah nilai rata-rata nasional. Hal itu menunjukkan bahwa sebagian guru di Batubara masih memiliki profesionalisme yang rendah dalam melakukan tugas profesinya sehingga ke depan diharapkan perkembangan karakter guru yang berkualitas. THE URGENT DEMAND FOR PROFESSIONALISM AND THE HOPE FOR TEACHERS WITH GOOD CHARACTER