1,539 research outputs found

    Derivatives of Horn-type hypergeometric functions with respect to their parameters

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    We consider the derivatives of Horn hypergeometric functions of any number variables with respect to their parameters. The derivative of the function in nn variables is expressed as a Horn hypergeometric series of n+1n+1 infinite summations depending on the same variables and with the same region of convergence as for original Horn function. The derivatives of Appell functions, generalized hypergeometric functions, confluent and non-confluent Lauricella series and generalized Lauricella series are explicitly presented. Applications to the calculation of Feynman diagrams are discussed, especially the series expansion in ϵ\epsilon within dimensional regularization. Connections with other classes of special functions are discussed as well.Comment: 27 page

    Heavy Quark Production in Deep-Inelastic Scattering at HERA

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    We discuss two topics in the production of heavy quarks in deep-inelastic scattering: the next-to-leading order Monte-Carlo HVQDIS and the next-to-leading logarithmic resummation of soft gluon effects, including estimates of next-to-next-to-leading order corrections therefrom.Comment: 10 pages, 10 figures, To appear in Proceedings of Monte Carlo Generators for HERA Physics, Hamburg 1998/99 Figures update

    Fermionic and Scalar Corrections for the Abelian Form Factor at Two Loops

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    Two-loop corrections for the form factor in a massive Abelian theory are evaluated, which result from the insertion of massless fermion or scalar loops into the massive gauge boson propagator. The result is valid for arbitrary energies and gauge boson mass. Power-suppressed terms vanish rapidly in the high energy region where the result is well approximated by a polynomial of third order in ln(s/M^2). The relative importance of subleading logarithms is emphasised.Comment: Latex, 10 pages, 5 figures. B. Feucht is B. Jantzen in later publications. (The contents of the paper is unchanged.

    Ihtikâr dan Dampaknya terhadap Dunia Ekonomi

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    There are some economic transactions that prohibited by religion because they only give benefit for one party. They are gambling, riba, fraudulence, (al-ghabn), tadlîs practice in buying and selling and hourding (ihtikâr). Therefore, it needs sence of transendence in every economical transaction. Ihtikâr is the economic activity undertaken by an economic agent with a hoard of goods in order to get maximum profit without seeing another person distress. Inthis case, the government should keep the market system which includes prohibiting ihtikâr, so the economic system can move with normal speed and full fairnessDOI: 10.15408/aiq.v4i1.253

    Perbandingan Ekonomi Islam dan Ekonomi Kapitalis

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    The greatness of the capitalist economic theory has been questioned by many prominent economists. Due to the economic crisis occurred throughout history, it is necessary to bring out an alternative economic theory. Economic theory aspired is an economic system that is able to create justice and the welfare accompanied with blessing the world and the hereafter. Therefore, islamic economic theory can be considered as a way out to solve the contemporary economy problems. This article comparethe system of islamic economic and the capitalist economic takinginto account the philosophy, investment, distribution, theory of macro and micro aspects.DOI: 10.15408/aiq.v4i2.255

    Kendala-kendala Penyidik dalam Menangani Pemungutan Hasil Hutan tanpa Izin ( Studi di Polsek Kesamben,kabupaten Blitar)

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    Dalam penulisan skripsi ini penulis membahas Kendala-Kendala PenyidikDalam Menangani Pemungutan Hasil Hutan Tanpa Izin ( Studi Di KabupatenBlitar)., dalam penelitian ini terdapat pertentangan antara peraturan dengankenyataan, Mengenai hal-hal tersebut di atas terdapat pertentangan antara dassollen dan das sein. Dos sollen yakni mengenai Pasal 50 ayat (3) huruf e UndangundangNomor 41 Tahun 1999 Tentang Kehutanan, terkait larangan untukmenebang pohon atau memanen atau memungut hasil hutan di dalam hutan tanpamemiliki hak atau izin. Das sein dalam penelitian ini adalah masih banyakpembalakan liar yang terjadi di kabupaten blitar.Masalah yang dikaji dalam skripsi ini adalah: 1). Apa saja kendala-kendalayang dialami Penyidik dalam menangani pemungutan hasil hutan tanpa izin diKecamatan Kesamben Kabupaten Blitar.2). Bagaimana Upaya Penyidik dalammenangani pemungutan hasil hutan tanpa izin di Kecamatan KesambenKabupaten Blitar.Untuk menjawab masalah yang dikaji tersebut, penulis menggunakanmetode Pendekatan yang dilakukan dalam penelitian empiris ini adalahpendekatan yuridis-sosiologis.Berdasarkan hasil penelitian, penulis memperoleh jawaban ataspermasalahan yang ada, yaitu Dari pernyataan Kapolsek Kesamben: Sukadi, AjunKomisaris Polisi, dapat disimpulkan bahwa kendala penegakan Pasal 50 ayat (3)Undang-undang Nomor 41 Tahun 1999 Tentang Kehutanan, terkait laranganmelakukan penebangan hutan tanpa izin. ada 3 , yaitu; Luasnya areal Hutan DiKabupaten Blitar, yakni hutan jati seluas 21.456 Ha dan 1352 Ha Hutan rimba,(faktor ekstern), terbatasnya jumlahnya anggota, (faktor intern), penebangan disinisudah mengakar budaya disini. (faktor ekstern) Faktor Yuridis, Pasal 50 ayat (3) Undang-undang Nomor 41 Tahun 1999 Tentang Kehutanan terkait laranganmelakukan penebangan hutan tanpa izin sudah mengatur secara jelas, termasuksanksinya yang diatur dalam Pasal 78 ayat (5) dan ayat (14) Undang-undangNomor 41 Tahun 1999 Tentang Kehutanan.Menyikapi hal-hal tersebut di atas, maka sudah selayaknya SebaiknyaMengingat pemungutan hasil hutan tanpa izin sudah membudaya di masyarakat,Kesamben Kabupaten Blitar, sosialisasi sebaiknya terus dilakukan, agarmasyarakat tau mengenai pentingnya izin mengelola hutan dan bahayanyapembalakan liar

    Financial Performance in Manufacturing Company with Multiple Linier Regression and MARS

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    The purpose of this research is to analyse the influence of enviromental disclosure and enviromental performance on economic performance with firm size as control variable. Enviromental disclosure was measured by GRI index, enviromental performance measured by PROPER index, firm size measured by Ln total assets and economic performance measured by economic performance index. The sample of this study consists of 32 companies listed on the IDX 2013 - 2016. The criteria of the research sample are (1) Manufacturing companies that follow PROPER, (2) Issuing financial statements with rupiah currency, (3) Publish a complete annual report. The results of this study inform that the performance of Multivariate Adaptive Regression Spline (MARS) is better than multiple linear regression. The result of multiple linear regression informs that not all classical assumption requirements are met. This results in a non-significant regression model, small R-square and many predictor variables have no effect on response variables. MARS is one of the alternative methods to overcome the lack of multiple linear regression method. MARS is not a requirement with classical assumptions because it includes one of the non-parametric regressions. MARS results informed that the MARS model is significant, R-square is large and the variables that affecting the Economic performance are enviromental disclosure and enviromental performance while the most influential is the enviromental performance

    Four-loop results on anomalous dimensions and splitting functions in QCD

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    We report on recent progress on the flavour non-singlet splitting functions in perturbative QCD. The~exact four-loop (N^3LO) contribution to these functions has been obtained in the planar limit of a large number of colours. Phenomenologically sufficient approximate expressions have been obtained for the parts not exactly known so far. Both cases include results for the four-loop cusp and virtual anomalous dimensions which are relevant well beyond the evolution of non-singlet quark distributions, for which an accuracy of (well) below 1% has now been been reached.Comment: 11 pages, LaTeX (PoS style), 4 eps-figures. Contribution to the proceedings of `RADCOR 2017', St. Gilgen (Austria), September 201

    Anomalous dimensions and splitting functions beyond the next-to-next-to-leading order

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    We report on recent progress on the splitting functions for the evolution of parton distributions and related quantities, the (lightlike) cusp anomalous dimensions, in perturbative QCD. New results are presented for the four-loop (next-to-next-to-next-to-leading order, N^3LO) contributions to the flavour-singlet splitting functions and the gluon cusp anomalous dimension. We present first results, the moments N=2 and N=3, for the five-loop (N^4LO) non-singlet splitting functions.Comment: 10 pages, LaTeX (PoS style), 3 eps-figures. Contribution to the proceedings of `Loops & Legs 2018', St. Goar (Germany), April/May 201

    Prompt neutrinos from atmospheric charm in the general-mass variable-flavor-number scheme

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    We present predictions for the prompt-neutrino flux arising from the decay of charmed mesons and baryons produced by the interactions of high-energy cosmic rays in the Earth's atmosphere, making use of a QCD approach on the basis of the general-mass variable-flavor-number scheme for the description of charm hadroproduction at NLO, complemented by a consistent set of fragmentation functions. We compare the theoretical results to those already obtained by our and other groups with different theoretical approaches. We provide comparisons with the experimental results obtained by the IceCube Collaboration in two different analyses and we discuss the implications for parton distribution functions.Comment: 43 pages, 21 figures, updated version, to be published in JHE
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