Cracking of Charged Polytropes with Generalized Polytropic Equation of State

We discuss the occurrence of cracking in charged anisotropic polytropes with generalized polytropic equation of state through two different assumptions; (i) by carrying out local density perturbations under conformally flat condition (ii) by perturbing anisotropy, polytropic index and charge parameters. For this purpose, we consider two different definitions of polytropes exist in literature. We conclude that under local density perturbations scheme cracking does not appears in both types of polytropes and stable configuration are observed, while with second kind of perturbation cracking appears in both types of polytropes under certain conditions.Comment: 24 pages, 11 figure

Fate of Electromagnetic Field on the Cracking of PSR J1614-2230 in Quadratic Regime

In this paper, we study the cracking of compact object PSR J1614-2230 in quadratic regime with electromagnetic field. For this purpose, we develop a general formalism to determine the cracking of charged compact objects. We apply the local density perturbations to the hydrostatic equilibrium equation as well as all the physical variables involve in the model. We plot the force distribution function against radius of the star with different values of model parameters both with and without charge. It is found that PSR J1614-2230 remains stable (no cracking) corresponding to different values of parameters when charge is zero, while it exhibit cracking (unstable) when charge is introduced. We conclude that stability region increases as amount of charge increases.Comment: 21 pages, 8 figures, version to appear in advances in high energy physic

Study of polytropes with Generalized polytropic Equation of State

The aim of this paper is to discuss the theory of Newtonian and relativistic polytropes with generalized polytropic equation of state. For this purpose, we formulated the general framework to discuss the physical properties of polytrops with anisotropic inner fluid distribution under conformally flat condition in the presence of charge. We investigate the stability of these polytrops in the vicinity of generalized polytropic equation through Tolman-mass. It is concluded that one of the derived models is physically acceptable.Comment: 21 pages, 3 figure

Peningkatan Mutu Lembaga Pendidikan Islam (Tinjauan Konsep Mutu Edward Deming dan Joseph Juran)

Peningkatan mutu pendidikan menjadi prioritas utama di semua lembaga pendidikan. Demikian pula di lembaga pendidikan Islam yang sementara berproses menjadi lembaga pendidikan yang memiliki kualitas setara dengan lembaga pendidikan lain bahkan menjadi lembaga pendidikan yang berkualitas tinggi. Untuk mencapai hal tersebut, maka upaya terus dilakukan oleh lembaga pendidikan Islam. Salah satu upayanya adalah dengan menerapkan berbagai teori dan konsep manajemen mutu agar kualitas pendidikan dapat terjaga dan diakui sebagai lembaga pendidikan yang menjalankan proses dengan baik dan menghasilkan output yang baik. Ada beberapa konsep peningkatan mutu/kualitas yang dikemukakan para ahli seperti Edward Deming dan Joseph Juran yang berkaitan dengan perencanaan mutu, pengendalian dan peningkatan mutu. Kajian ini akan membahas tentang beberapa konsep mutu dan relevansinya pada lembaga pendidikan Islam dalam menjawab tantangan pendidikan global

Evaluasi Kinerja DAS dan Simulasi Konservasi Menggunakan Swat (Soil And Water Assessment Tool) Studi Kasus : Sub DAS Tapung, Siak, Provinsi Riau)

Alteration of land use which is happening at Tapung watershed (DAS Tapung) is worrying. Marked by the decreasing of forest area from 15.624,36 ha at 2002 to 12.186,32 ha at 2012. Evaluation of watershed condition and performance is needed. Evaluation using (i) Percentage of critical land (PLK) (ii) Percentage of vegetation cover (PPV) (iii) Coefficient regim of flow(KRA) (iv) Coannual of flow (KAT) efficient criteria. Evaluation result of PLK is 9,82%, PPV 71,6%, KRA 14,28 and KAT 0,45. After receiving existing evaluation value, conservation simulation using SWAT program is done by changing a part of open land area and shrub on land use map of 2012 with forest. From simulation result, SWAT model validity parameter R2 is 0,50 and NSE 0,50. These result have satisfied the research objectives as the finding coefficient were > R2 0,4 and >NSE 0,35 From this simulation, watershed condition is evaluated again. Evaluation result after doing conservation simulation are PLK 6,47, PPV 71,6, KRA 5,78, and KAT 0,44. Values after conservation simulation gives better result than the condition before conservation simulation is done

Citizenship/Residence by Investment and Digital Nomad Visas: The Golden Era of Individual Tax Evasion and Avoidance?

In recent decades, increased mobility of capital and labor improved individuals’ opportunities to avoid or evade tax. This chapter explores two programs commonly provided by tax havens that facilitate individuals in dodging taxation in their home country. We first focus on longer-existing initiatives targeting wealthy individuals by offering citizenship and residence-by-investment (CBI/RBI) programs and discuss how they allow individuals to evade taxes. We then delve into the recently launched digital nomad visa (DNV) programs, which grant individuals temporary residence in a country while working exclusively remotely. We provide a comprehensive overview of the key features of existing programs based on a novel, hand-collected dataset. Currently, more than 40 countries offer a DNV program, and half of them are tax havens. Although DNV programs mainly create concerns about tax avoidance, they can also provide tax evasion opportunities similar to those documented in the literature for CBI and RBI programs

Development of complexity induced frameworks for charged cylindrical polytropes

The main theme of this work is the development of complexity induced generalized frameworks for static cylindrical polytropes. We consider two different definitions of generalized polytopes with charged anisotropic inner fluid distribution. A new methodology based on complexity factor for the generation of consistent sets of differential equations will be presented. We conclude our work by carrying out graphical analysis of developed frameworks.Comment: 21 pages, 6 figure