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Abstract

A study of the Quran makes it clear, that the New and Old Testament traditions are manifest in various forms in the sacred book of Muslims. This paper presents the phenomenon of these biblical borrowings, giving the references in the Quran to the biblical persons and main themes. One finds many of the Old and New Testament stories of the prophets sometimes in precise forms where the Quranic records are relative identical with the Biblical versions. On other fragments the Quranic narra- tives contain elements of Biblical traditions mixed with folklore and fables extracted from the Talmud and in some cases (such as the story of Abraham and the idols) the sources are entirely Midrashic-Haggadic or Apocryphal. It is worth to be pointed out that the influence of orthodox Christianity on the Quran was slight but apocryphal and heretical Christian legends are clearly visible in the various Quranic fragments. Probably it is a result of Muhammad’s journeys between Syria, Hijaz, and yemen.

Scholars have adopted a number of different theories explaining the phenomenon of the biblical borrowings found in the Quran. For example it is said about Muham- mad’s dependence upon Jewish teachers and thus an overarching Jewish influence on Islam. It is generally admitted that Muhammad had opportunity to come into contact with yemenite, Abyssinian, Ghassanite, and Syrian Christians, especially heretic.

Analyzes of the Quran in the light of parallel passages in the Bible, Talmud and Apocrypha permits us to formulate an idea that early Islamic revelations were com- pilation of Muhammad inspiration with repetition of information coming to his ears, some of it Biblical and true to history, the rest predominantly mythical and fictitious. This thesis is not accepted by Muslim scholars, who maintain that the Qur’an is the divine word of God without any interpolation.

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Authors and Affiliations

Ks. Krzysztof Kościelniak
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Abstract

In this paper, we propose a robust estimation of the conditional variance of the GARCH(1,1) model with respect to the non-negativity constraint against parameter sign. Conditions of second order stationary as well as the existence of moments are given for the new relaxed GARCH(1,1) model whose conditional variance is estimated deriving firstly the unconstrained estimation of the conditional variance from the GARCH(1,1) state space model, then, the robustification is implemented by the Kalman filter outcomes via density function truncation method. The GARCH(1,1) parameters are subsequently estimated by the quasi-maximum likelihood, using the simultaneous perturbation stochastic approximation, based, first, on the Gaussian distribution and, second, on the Student-t distribution. The proposed approach seems to be efficient in improving the accuracy of the quasi-maximum likelihood estimation of GARCH model parameters, in particular, with a prior boundedness information on volatility.
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Bibliography

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Authors and Affiliations

Abdeljalil Settar
1
ORCID: ORCID
Nadia Idrissi Fatmi
1
ORCID: ORCID
Mohammed Badaoui
1 2
ORCID: ORCID

  1. LIPIM, École Nationale des Sciences Appliquées (ENSA), Khouribga, Morocco
  2. LaMSD, École Supérieure de Technologie (EST), Oujda, Morocco
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Abstract

The main current system occurring at Admiralty Bay is a two-phase flow system typical for fiords. Tidal waters are a decisive factor in determining the movements of water, whereas surface circulation is determined by winds, when the wind speed is higher than 4 m/s. The maximum values and directions of the surface drift current depend exclusively upon the actually prevailing wind field. The current speeds may reach the order of magnitude up to 100 cm/s. This flow lies above the two-phase system of currents generated by tides. The value of the currents produced by tides may reach up to ~50 cm/s. The direction of the current flow is not always in line with the corresponding of the tide. This is due probably to the irregularity and asymmetry of the tide and great inertis of the water masses.

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Authors and Affiliations

Zbigniew Pruszak

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