This article discusses the last Sunday in the Pre-Lenten period in the liturgical tradition of the Orthodox Church known as “Cheese-fare Sunday” or “Forgiveness Sunday”. The faithful’s attention is concentrated on the need to forgive others as one of the main conditions of crossing the threshold of Great Lent. Particularly noteworthy is the explanation of the very term “forgiveness”, as well as the kind of theological and moral message that the Fathers of the Church and the authors of the texts of the services of Great Lent find in it. Furthermore, it also clearly points out the tragic consequences of the fall of man, which is why has also been called “The Sunday of the Expulsion of Adam and Eve from Paradise.” The main reason for recollecting this tragic event is the purely didactic aspect. There are two perspectives of spiritual life for a man who begins the trial of a fast way. On the one hand, endowed with free will - like the protoplasts - has the opportunity to choose a life in accordance with God’s commandments, which will result in constant communion with Him and saturating the gift of His grace. On the other hand, he observes what the lack of temperance and disobedience to the Creator causes. Great Lent is therefore an attempt to show the right way to return to Paradise reality and unity with God and people.
Heresy is usually defned as an error concerning the content of faith. In this article heresy is shown as a sin requiring conversion and penance and not just a withdrawal of one’s views. A sin of heresy is compared to adultery or idolatry, for which the same penance used to be assigned (e.g. Synod of Elvira in 306, can. 22). In this context the condemnation of Nestorius by the Council of Ephesus in 431 is characteristic because it is focused on the insult to Jesus Christ and not on erroneous conceptions. It is also the case with the formulas of condemnation of heretics where such invectives as contamination, sacrilegium or perfdia were often used, and those terms belong to the feld of morality rather than to intellectual disputes or differences.
The aim of the paper is the residual stress analysis of AlSi10Mg material fabricated by selective laser melting (SLM). The SLM technique allows to product of complex geometries based on three-dimensional model, in which stiffness and porosity can be precisely designed for specific uses. As the studied material, there were chosen solid samples built in two different directions: parallel (P-L) and perpendicular (P-R) to the tested surface and cellular lattice built in perpendicular direction, as well. In the paper, for the complex characterization of obtained materials, the phase analysis, residual stress and texture studies were performed. The classical non-destructive sin2ψ method was used to measure the residual stress measurements.
The final products, both solid sample and cellular lattice, have a homogeneous phase composition and consist of solid solution Al(Si) (Fm-3m) type, Si (Fd-3m) and Mg2Si (Pnma). The obtained values of the crystallite size are in a range of 1000 Å for Al(Si), 130-180 Å for Si phase. For Mg2Si phase, the crystallite sizes depend on sintering process, they are 800 Å for solid samples and 107 Å for cellular lattice. The residual stress results have the compressive character and they are in a range from –5 to –15 MPa.