scholarly journals Modular quantum computing and quantum-like devices

Author(s):  
R. Vilela Mendes

The two essential ideas in this paper are, on the one hand, that a considerable amount of the power of quantum computation may be obtained by adding to a classical computer a few specialized quantum modules and on the other hand, that such modules may be constructed out of classical systems obeying quantum-like equations where a space coordinate is the evolution parameter (thus playing the role of time in the quantum algorithms).

Author(s):  
Poornima Aradyamath ◽  
Naghabhushana N M ◽  
Rohitha Ujjinimatad

In this paper, we briefly review the basic concepts of quantum computation,  entanglement,  quantum cryptography and quantum fourier  transform.   Quantum algorithms like Deutsch Jozsa, Shor’s   factorization and Grover’s data search are developed using fourier  transform  and quantum computation concepts to build quantum computers.  Researchers are finding a way to build quantum computer that works more efficiently than classical computer.  Among the  standard well known  algorithms  in the field of quantum computation  and communication we  describe  mathematically Deutsch Jozsa algorithm  in detail for  2  and 3 qubits.  Calculation of balanced and unbalanced states is shown in the mathematical description of the algorithm.


2020 ◽  
Vol 2 (95) ◽  
pp. 15-20
Author(s):  
I. K. Bozhko ◽  
G.G. Chetverykov ◽  
О.А. Karataiev

The current paper covers the investigation of the current state of the existing tools for quantum programming includingQCL (Quantum Computation Language), quantum pseudocode, Q# programming language and Quipper. Since quantumcomputing is one of the main research areas today, the respective tools are being created quite often. They are aimed onsimplifying the development of quantum programs, on the one hand, and provide some platform for testing and runningthem, on the other hand. So, the authors investigated the currently available tools and provided the results in the article


Author(s):  
Iryna Rusnak

The author of the article analyses the problem of the female emancipation in the little-known feuilleton “Amazonia: A Very Inept Story” (1924) by Mykola Chirsky. The author determines the genre affiliation of the work and examines its compositional structure. Three parts are distinguished in the architectonics of associative feuilleton: associative conception; deployment of a “small” topic; conclusion. The author of the article clarifies the role of intertextual elements and the method of constantly switching the tone from serious to comic to reveal the thematic direction of the work. Mykola Chirsky’s interest in the problem of female emancipation is corresponded to the general mood of the era. The subject of ridicule in provocative feuilleton is the woman’s radical metamorphoses, since repulsive manifestations of emancipation becomes commonplace. At the same time, the writer shows respect for the woman, appreciates her femininity, internal and external beauty, personality. He associates the positive in women with the functions of a faithful wife, a caring mother, and a skilled housewife. In feuilleton, the writer does not bypass the problem of the modern man role in a family, but analyses the value and moral and ethical guidelines of his character. The husband’s bad habits receive a caricatured interpretation in the strange behaviour of relatives. On the one hand, the writer does not perceive the extremes brought by female emancipation, and on the other, he mercilessly criticises the male “virtues” of contemporaries far from the standard. The artistic heritage of Mykola Chirsky remains little studied. The urgent task of modern literary studies is the introduction of Mykola Chirsky’s unknown works into the scientific circulation and their thorough scientific understanding.


Author(s):  
Ксения Ивановна Голубцова

Статья посвящена рассмотрению проблем профилактики преступлений оперативными подразделениями исправительных учреждений (далее - ИУ). Автор, раскрывая роль оперативных отделов ИУ в общей профилактике правонарушений, указывает на ее двоякость, поскольку, с одной стороны, рассматриваемые подразделения обладают значительным преимуществом перед другими службами учреждения в выявлении негативных факторов (негласный метод получения оперативно значимой информации), с другой стороны - далеко не все условия, которые способствуют совершению преступлений в ИУ, можно устранить оперативным путем. Изучение специальной литературы позволило выявить в деятельности начальников ИУ определенные проблемы, связанные с оценкой состояния оперативной обстановки в ИУ, сложившейся ситуации; с отсутствием прогноза развития криминогенной ситуации в ИУ, а также с профессиональной некомпетентностью руководителей, неумением объективно оценивать результаты деятельности структурных подразделений. Автор особое внимание уделяет анализу статистических данных о совершенных и предотвращенных преступлениях лицами, находящимися в местах лишения свободы. The article is devoted to the consideration of problems of crime prevention by operational units of correctional institutions (hereinafter referred to as IA). The author, revealing the role of the operational departments of the IA in the general prevention of offences, points to its twofold. On the one hand, the units under consideration have significant advantages over other services of the institution in identifying negative factors (these are tacit methods of obtaining promptly meaningful information). On the other hand, not all conditions conducive to the commission of crimes in IA can be eliminated by operational means: For example, shortcomings in the activities of other departments and services (security department, duty shift, etc.). The study of special literature has made it possible to identify problems in the activities of heads of correctional institutions in the sphere of implementation of solutions in case of lack of objective and complete information on the state of the operational situation in IA, the current situation, the results of the activities of structural subdivisions; No forecast of the development of the crime situation in IE; Professional incompetence of managers, inability to objectively assess the results of activities of structural subdivisions. The author pays particular attention to the analysis of statistics on crimes committed and prevented by persons in detention.


1998 ◽  
Vol 25 (1) ◽  
pp. 57-72 ◽  
Author(s):  
David Oldroyd

This article examines the role that correspondence played in the accounting systems of Tudor merchants. Merchants relied heavily on letters as a means of controlling their businesses at a distance by making agents accountable. Written accountability, as well as information for business decisions, was encouraged by agency relationships in mercantile enterprises. The system could be undermined by the breakdown of communication through the negligence of a factor or the lack of involvement by the principal. The time delays between the sending and the receipt of letters, on the one hand, and the procurement and conveyance of goods, on the other, were additional problems.


Author(s):  
Zoltán Kövecses

The chapter reports on work concerned with the issue of how conceptual metaphor theory (CMT) functions as a link between culture and cognition. Three large areas are investigated to this effect. First, work on the interaction between conceptual metaphors, on the one hand, and folk and expert theories of emotion, on the other, is surveyed. Second, the issue of metaphorical universality and variation is addressed, together with that of the function of embodiment in metaphor. Third, a contextualist view of conceptual metaphors is proposed. The discussion of these issues leads to a new and integrated understanding of the role of metaphor and metonymy in creating cultural reality and that of metaphorical variation across and within cultures, as well as individuals.


Author(s):  
Steven French

What is a scientific theory? Is it a set of propositions? Or a family of models? Or is it some kind of abstract artefact? These options are examined in the context of a comparison between theories and artworks. On the one hand, theories are said to be like certain kinds of paintings, in that they play a representational role; on the other, they are compared to musical works, insofar as they can be multiply presented. I shall argue that such comparisons should be treated with care and that all of the above options face problems. Instead, I suggest, we should adopt a form of eliminativism towards theories, in the sense that a theory should not be regarded as any thing. Nevertheless, we can still talk about them and attribute certain qualities to them, where that talk is understood to be made true by certain practices. This shift to practices as truth-makers for theory talk then has certain implications for how we regard theories in the realism debate and in the context of the nature and role of representation in science.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Michele Bonus ◽  
Dieter Häussinger ◽  
Holger Gohlke

Abstract Liver cell hydration (cell volume) is dynamic and can change within minutes under the influence of hormones, nutrients, and oxidative stress. Such volume changes were identified as a novel and important modulator of cell function. It provides an early example for the interaction between a physical parameter (cell volume) on the one hand and metabolism, transport, and gene expression on the other. Such events involve mechanotransduction (osmosensing) which triggers signaling cascades towards liver function (osmosignaling). This article reviews our own work on this topic with emphasis on the role of β1 integrins as (osmo-)mechanosensors in the liver, but also on their role in bile acid signaling.


2021 ◽  
Vol 3 (4) ◽  
pp. 119-126
Author(s):  
Hadeel EJMAIL

Death is one of the most difficult topics a person can talk about. The human being is busy with how to continue his life and improve its conditions. This study aims is to explore the writing of Facebook pages of the dead. The research used the qualitative approach through a content analysis, where (50) publications were found on fifteen pages of a dead person with an intentional sample, and the results of the research showed that writing people in the pages of the dead included two directions, the first direction is a desire to immortalize the dead and a kind of preserving their roots Alive. As for the other direction, it was weeping over their ruins and showing the end of a person's death and his end life. Sometimes in the same post include both directions together, meaning "the use of the deceased’s account by his family by changing the profile picture of the dead, and at the same time inviting the deceased’s friends through his page to the memorial event. People write on the pages of the dead in order to weep over their ruins on the one hand, and to immortalize their memories on the other side. Facebook as a social platform and the interaction of people with the pages of the dead shows the great social interaction that takes place in this space, and research in this field is not consistent with one and only claim, as some posts are either temporary or permanent; Therefore, I have used screen capture technology to collect and retain information. The pages of the dead included referring to them, writing memorials and longing, etc. Facebook has become a social platform that allows those who lose a dear person to share their grief through it, and enables them to deal with death and relieve their pain


2020 ◽  
Vol 20 (9&10) ◽  
pp. 747-765
Author(s):  
F. Orts ◽  
G. Ortega ◽  
E.M. E.M. Garzon

Despite the great interest that the scientific community has in quantum computing, the scarcity and high cost of resources prevent to advance in this field. Specifically, qubits are very expensive to build, causing the few available quantum computers are tremendously limited in their number of qubits and delaying their progress. This work presents new reversible circuits that optimize the necessary resources for the conversion of a sign binary number into two's complement of N digits. The benefits of our work are two: on the one hand, the proposed two's complement converters are fault tolerant circuits and also are more efficient in terms of resources (essentially, quantum cost, number of qubits, and T-count) than the described in the literature. On the other hand, valuable information about available converters and, what is more, quantum adders, is summarized in tables for interested researchers. The converters have been measured using robust metrics and have been compared with the state-of-the-art circuits. The code to build them in a real quantum computer is given.


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