Author Archives: Nicolae Sfetcu

The theory of relativity, even “restricted”, is not precisely based on the Michelson-Morley experiment, since it expresses, in a general way, the need to preserve the laws of electromagnetism in an invariable form when passing from one system of reference … Read More

The singularities from the general relativity resulting by solving Einstein’s equations were and still are the subject of many scientific debates: Are there singularities in spacetime, or not? Big Bang was an initial singularity? If singularities exist, what is their … Read More

Suppose that we propose to find a function F which satisfies Laplace’s equation inside the sphere S and which, at the different points M of the surface of this sphere, take given values V°. The value of this function V … Read More

This book present some of the most important bridge bidding systems used in duplicate bridge tournaments, detailing the most known bridge bidding system, Standard American Yellow Card, by using a logical sequential order for openings, answers, competitive bids and defensive … Read More

A guide for online marketers, advertisers and publishers, to increase the digital marketing and optimize their costs and benefits. Internet marketing, also known as digital marketing, web marketing, online marketing, search marketing or e-marketing, is the marketing (generally promotion) of … Read More

Such is the present state of the question; let us see now what is the goal that I have in view; what would have been most interesting would have been to replace the current calculation methods with other less defective … Read More

A pocket book is a book printing format that has three main characteristics: small size, moderate price, and relatively high volume production. Primarily intended for a wider audience, the pocket book is of relatively lower quality, close to the fascicle … Read More

Vanity press consists of an author having his works published by himself who provides only the technical part of the publishing and distribution, apart from the editorial choice itself. It is therefore the author who pays for the printing and … Read More

Dirichlet’s problem reduces to the search for Green’s functions. Let’s find a function V which inside a surface S satisfies Laplace’s equation and on this surface takes given values. Suppose that we have found a function U which is finite, … Read More

Panteli highlights the psychological aspects of Collodi’s book appealing to Freudian psychoanalysis in literary theory and the use of a model of Freud’s definition of the human psyche. The Adventures of Pinocchio can also be approached through the prism of the philosophy of mind, of the essential questions in this field. In the book, within the limits of the heterotopic experience, several theoretical and ontological questions are explored through an examination of the psychological, emotional and spiritual requirements on the individuals in this space.

The Dirichlet problem is always possible; this principle is known as Dirichlet’s principle and the first proof is due to Riemann. If a function V is subject to taking given values at various points of a certain surface, bounding a … Read More

Pinocchio is one of the most mediated characters in children’s literature. His story has been adapted into other books, comics and cartoons, and movies. There is a structural similarity between Pinocchio’s adventures and folk tales about unprepared peasants arriving in the city or even in other countries for a better life.