cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota bandung,
Jawa barat
INDONESIA
INTEGRAL
Published by Universitas Katolik Parahyangan
ISSN : 14101335     EISSN : 23373784     DOI : -
Core Subject : Education,
Education Mathematics
INTEGRAL (ISSN 1410-1335 print, ISSN 2337-3784 online) is a refereed open access journal that provides a forum for the publication of research in Mathematics, Physics, Informatics and other relatedinterdisciplinaryareas.Manuscripts can be written in English or Bahasa Indonesia. INTEGRAL uses a blind review process. Each manuscript is reviewed by one member of the Editorial Board and two other peer reviewers. Based on the reviewers' reports, the Editors decide on the publication outcome whether to publish the manuscript.The publication frequency is three times in a year (January, May, September).
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol. 11 No. 1 (2013)" : 4 Documents clear
THE INFLUENCE OF LIFE EXPECTANCY IN THE DETERMINATION OF PENSION FUND INVESTMENTS Farah Kristiani
INTEGRAL Vol. 11 No. 1 (2013)
Publisher : INTEGRAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.667 KB)

Abstract

Preparating one’s retirement is important for many people, because an employee will often have no salary anymore after retiring, but his/her daily needs are still remained. It is not easy to calculate or estimate the amount of investment funds that must be saved during the active working years to make up for the lack of funds after one’s retirement. This is still the case, even when the case when he/she will receive a pension from the company where he/she worked. In this research we further examine how the life expectancy plays an important role in calculating the amount of necessary fund investments. The results of these calculations are compared with the results without life expectancy. From this analysis, it can be concluded that the required pension fund investments calculated with the life expectancy is much less than the one without life expectancy. This happens because the required pension fund investments are only estimated by assuming that he/she is still alive.Keywords: present value, annuity, pension, investmentPersiapan memasuki usia pensiun penting untuk dilakukan mengingat seorang karya- wan tidak akan mempunyai pemasukan dari gaji setelah dia pensiun, tapi pengelu- aran untuk kebutuhan hidup sehari-hari masih tetap ada. Kesulitan yang sering muncul adalah menghitung berapa besaran dana investasi yang harus dilakukan pada saat masih aktif bekerja supaya mencukupi kekurangan dana setelah seorang karyawan pensiun meskipun ia telah menerima juga tunjangan pensiun dari pe- rusahaan tempatnya bekerja. Pada penelitian ini ditelaah lebih lanjut bagaimana ekspektasi hidup berperan dalam menghitung besaran dana investasi ini. Hasil per- hitungannya dibandingkan dengan perhitungan biasa yang tidak menerapkan ek- spektasi hidup di dalamnya. Dari hasil analisa, dapat disimpulkan bahwa besaran dana pensiun yang dihitung dengan menerapkan ekspektasi hidup, jauh lebih kecil dibandingkan dengan besaran dana pensiun yang dihitung tanpa ekspektasi hidup, karena antisipasi dana investasi pensiun hanya dilakukan selama orang tersebut diasumsikan masih hidup.Kata Kunci: nilai tunai, anuitas, pensiun, investasi.
VERTICES IN A SCALAR-GRAVITY SYSTEM IN THE TELEPARALLEL GRAVITY THEORY Triyanta Triyanta; Kian Ming
INTEGRAL Vol. 11 No. 1 (2013)
Publisher : INTEGRAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1205.582 KB)

Abstract

We consider a scalar field interacting gravitationally in teleparallel gravity theory. In this theory, the gravity is defined as a translational gauge field and thus gravita- tional interaction can be introduced through a minimal coupling prescription as in standard gauge theory. In this paper we consider scalar-gravity interacting terms of the scalar-gravity Lagrangian and derive the corresponding vertices by writing the tetrad field hμa as δaμ + bμa . We obtain six different vertices: one-gravity, two-gravity, etc. up to six-gravity vertices.Keywords: Teleparallel gravity, scalar eld, scalar-gravity vertices.Kami meninjau medan skalar yang berinteraksi secara gravitasional dalam teori gravitasi teleparalel. Dalam teori ini medan gravitasi didefinisikan sebagai medan gauge translasi sehingga interaksi gravitasi dapat dibangun melalui preskripsi ko- pling minimal sebagaimana dalam teori gauge standar. Dalam makalah ini kami meninjau suku-suku interaksi gravitasi skalar pada Lagrangian untuk sistem medan gravitasi skalar dan menurunkan verteks-verteks yang terkait melalui pengungkapan medan tetrad hμa sebagai δaμ + bμa . Kami peroleh enam verteks berbeda: verteks satu gravitasi, dua gravitasi, dan seterusnya sampai verteks enam gravitasi.Kata Kunci: Gravitasi teleparalel, medan skalar, verteks gravitasi skalar.
ANALISIS MODEL PROBABILISTIK PUNAHNYA MUTAN PARASIT MALARIA YANG RESISTEN TERHADAP KLOROKUIN PLUS AMODIAKUIN Jonner Nainggolan
INTEGRAL Vol. 11 No. 1 (2013)
Publisher : INTEGRAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.471 KB)

Abstract

In this paper probabilistic models are developed from a model of malaria parasite population dynamics proposed by Macdonald [1] based on Galton-Watson branching and generating Negative Binomial distribution with maximum likelihood estimation, to test a model of malaria parasite extinction. Values of the model parameters are calculated using a samples of patients treated at the Jayapura General Hospital. The response of malaria parasites to chloroquine plus amodiaquine was examined with in- vivo tests. Samples were taken from 40 people, with 17 sensitive samples, 9 samples of degree of RI, 8 samples of degree of RII, and 6 samples of degree RIII. The data sample used in the model must satisfy the Negative Binomial distribution. Model construction approach includes: the basic model, study models, and mathematical calculations. A goodness of fit test was used to test the feasibility of the model. The model was focused on predicting the probability of the extinction of mutant malaria parasites resistant to chloroquine plus amodiaquine in a local population. Data analysis revealed the point of the probability of the extinction of resistant malaria parasites using Galton-Watson theorem is s = 0.8814. The probability of the extinction of malaria parasites resistant to chloroquine plus amodiaquine is φNB =0,8902.Keywords: Probabilistic model, malaria, the point of the extinction of parasites,chloroquine plus amodiaquine.Model probabilistik dalam tulisan ini merupakan pengembangan model dinamika populasi parasit malaria yang dikaji oleh Macdonald [1] berbasiskan pencabangan Galton-Watson dan pembangkit distribusi Binomial Negatif dengan estimasi mak- simum likelihood. Kombinasi model pencabangan Galton-Watson dan pembangkit distribusi Binomial Negatif digunakan untuk mengkaji model peluang punahnya parasit malaria. Untuk menentukan nilai parameter-parameter model digunakan data pasien yang berobat di Rumah Sakit Umum Jayapura. Untuk melihat respon parasit malaria terhadap obat antimalaria, digunakan tes in-vivo. Jumlah sampel dalam penelitian ini sebanyak 40 orang, 17 sampel sensitif, 9 sampel derajat RI, 8 sampel derajat RII, dan 6 sampel derajat RIII. Data sampel yang digunakan pada kajian model harus memenuhi syarat distribusi Binomial Negatif. Kemudian dilakukan pengujian kelayakan model dengan menggunakan goodness of fit test. Kajian model tersebut difokuskan untuk memprediksi besarnya probabilitas punah- nya mutan parasit malaria yang resisten terhadap klorokuin plus amodiakuin. Dari hasil analisis data diperoleh titik punahnya parasit malaria dengan menggunakan teorema Galton-Watson s = 0,8814. Sedangkan peluang punahnya parasit malaria yang resisten terhadap klorokuin plus amodiakuin adalah φN B = 0, 8902.Kata Kunci: Model probabilistik, malaria, titik punahnya parasit, klorokuin plusamodiakuin.
AN OVERVIEW OF NUCLEAR MAGNETIC RESONANCE Philips Nicolas Gunawidjaja
INTEGRAL Vol. 11 No. 1 (2013)
Publisher : INTEGRAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.129 KB)

Abstract

There are a number of techniques available for investigating the structures of materials. One of the most powerful techniques capable of providing information both about the structure of materials and about the dynamics of process within those materials is Nuclear Magnetic Resonance (NMR) Spectroscopy. The purpose of this paper is to give an overview on some of the most important aspects of the background theory of  NMR.Keywords: NMR theory.Ada beberapa jenis teknik untuk meneliti struktur material. Salah satu teknik yang sangat ampuh yang dapat memberikan infomasi mengenai struktur materal sekaligus proses dinamik dalam material tersebut adalah Spektroskopi Nuclear MagneticResonance (NMR). Tujuan ditulisnya tulisan ini adalah untuk memberikan sekilas rangkuman mengenai aspek-aspek penting dalam teori NMR.Kata Kunci: teori NMR.

Page 1 of 1 | Total Record : 4

 1 

Filter by Year

2013 2013


Reset
Filter By Issues
All Issue Vol. 11 No. 2 (2013) Vol. 11 No. 1 (2013)