scholarly journals Qubit Allocation

2020 ◽  
Author(s):  
Marcos Yukio Siraichi ◽  
Fernando Magno Quintão Pereira ◽  
Vinicius Dos Santos ◽  
Caroline Collange

The availability of the first prototypes of quantum computers, in 2016, with free access through the cloud, brought much enthusiasm to the research community. Yet, programming said computers is difficult. One core challenge is the so called qubit allocation problem. This problem consists in mapping the virtual qubits that make up a logical quantum program onto the physical qubits that exist in the target quantum architecture. To deal with this challenge, we have proposed one of the first algorithms to solve qubit allocation. This algorithm, together with its ensuing formulations, is today available in the Enfield compilera concrete product of this work. Our first paper in this field, titled Qubit Allocation, has inspired much research, and our latest qubit allocation design, called Bounded Mapping Tree, stands out today as one of the most effective qubit allocators in the world.

Author(s):  
Natacha Frachon ◽  
Martin Gardner ◽  
David Rae

Botanic gardens, with their large holdings of living plants collected from around the world, are important guardians of plant biodiversity, but acquiring and curating these genetic resources is enormously expensive. For these reasons it is crucial that botanic gardens document and curate their collections in order to gain the greatest benefit from the plants in their care. Great priority is given to making detailed field notes and the process of documentation is often continued during the plants formative years when being propagated. However, for the large majority of plants this process often stops once the material is planted in its final garden location. The Data Capture Project at the Royal Botanic Garden Edinburgh is an attempt to document specific aspects of the plant collections so that the information captured can be of use to the research community even after the plants have died.


2018 ◽  
Author(s):  
Rajendra K. Bera

It now appears that quantum computers are poised to enter the world of computing and establish its dominance, especially, in the cloud. Turing machines (classical computers) tied to the laws of classical physics will not vanish from our lives but begin to play a subordinate role to quantum computers tied to the enigmatic laws of quantum physics that deal with such non-intuitive phenomena as superposition, entanglement, collapse of the wave function, and teleportation, all occurring in Hilbert space. The aim of this 3-part paper is to introduce the readers to a core set of quantum algorithms based on the postulates of quantum mechanics, and reveal the amazing power of quantum computing.


1989 ◽  
Vol 3 (2) ◽  
pp. 107-111
Author(s):  
Michael T. Tobert

The UK, as far as we can discover, is currently the only country in the world that has an expertise database for its research community. It is one of the few countries that entrusts this sort of development to the private sector. I would like to look at how this has come about, comment on two factors that I think have influenced the outcome - namely size and quality - say something about who uses the database and where it is all leading.


2021 ◽  
Vol 102 (2) ◽  
pp. 164-170
Author(s):  
G. Sarzhanova ◽  
◽  
A. Toleuzhan ◽  
S. Turbaeva ◽  
◽  
...  

The article discusses the importance of using open educational resources (OER) and the need to use the technology for the development of speaking skills in the foreign language as well. The concept of OER first emerged in the 1990s and Open Educational Resources Movement announced in 2001 that MIT's entire course catalog was being put online and the project was going to be launched at the Massachusetts Institute of Technology in 2002. This technology has a number of advantages. For example, the use of OER provides free access to textbooks, allows maximizing time efficiently, increases the interest and motivation of students and helps teachers transform classes. However, it is difficult to deny the existence of some problems regarding OER. The main disadvantages include the quality of the educational resource and the lack of Internet access in all regions of the world. But shortcomings are a ‘temporary issue’ and in the future OER will be adapted in all countries of the world to a greater extent. It will be productive to develop foreign language speech skills using OER, since it allows students to acquire new knowledge more quickly and effectively. The developments of such skills will undoubtedly occurre directly as a result of the continuing use of various authentic materials and the frequent use of these materials by foreign language teachers in the classes is a topical issue. As a result, teachers may encounter problems related to lack of suitable language teaching materials. An important condition for solving the problem is the use of OER, which helps the teacher to develop students’ required skills in the learning process.


Author(s):  
Lance Fortnow

This chapter explores two separate paths that led to the P versus NP question. In the end it was Steve Cook in the West and Leonid Levin in the East who would first ask whether P = NP. Science does not happen in a vacuum, and both sides have a long history leading to the work of Cook and Levin. The chapter covers just a small part of those research agendas, the struggle in the West to understand efficient computation and the struggle in the East to understand the necessity of perebor. Both would lead to P versus NP. Today, with most academic work available over the Internet and with generally open travel around the world, there is now one large research community instead of two separate ones.


Author(s):  
Jaakko Malmivuo ◽  
Asta Kybartaitė

The advantages of the Internet in education are widely acknowledged by students and teachers all over the world. The authors have developed EVICAB as a free-access portal for e-learning with a full curriculum in biomedical engineering. It may be used as a virtual campus to support classroom lecturing or for distant learning. EVICAB provides educational material in various formats: video lectures to be viewed on a PC, an iPod or a media phone, lecture slides, textbook, exercises. It also offers a system for an Internet examination, which makes it possible for the students to take the examination anywhere in the world, where an educational institution provides proper environment. In this chapter, the authors briefly introduce the technology of the EVICAB portal and discuss in more detail the application of the Internet examination system. Educational technologies for developing teaching and learning via the Internet are widely available and user friendly.


Author(s):  
Jean-Eric Pelet ◽  
Jashim Khan ◽  
Panagiota Papadopoulou ◽  
Emmanuelle Bernardin

From the perspective of improving e-learning, the free access and user friendliness of User Generated Content (UGC) tools, such as social media, embedded onto mobile devices, such as smartphones and tablets, make them attractive to be adopted by students and professors in many institutions around the world. This chapter presents the results of an exploratory study on the use of smart phones and social media, identifying differences among countries, focusing on the MENA region (Middle East and North Africa). The objective is to facilitate the understanding of the rapidly evolving and expanding technology of smart phones and social media and explore its potential for m-learning purposes. Results show that social media and mobile devices can be effectively combined in a promising way to enable m-learning.


Author(s):  
David Abulafia

The Allied victory over Germany in the Second World War, like that in the First, left the Mediterranean unsettled. After Greece emerged from its civil war with a pro-western government, there were ever louder rumbles in Cyprus, where the movement calling for enôsis, union with Greece, was gathering pace again. Precisely because the Greeks sided with the West, and because Turkey had kept out of the war, during the late 1940s the United States began to see the Mediterranean as an advance position in the new struggle against the expanding power of the Soviet Union. The explicit theme was the defence of democracy against Communist tyranny. Stalin’s realism had prevented him from supporting Communist insurgency in Greece, but he was keen to find ways of gaining free access to the Mediterranean through the Dardanelles. In London and Washington, the fear that Soviet allies would establish themselves on the shores of the Mediterranean remained real, since the partisan leader in Yugoslavia, Tito, had played the right cards during the last stages of the war, even winning support from the British. Moreover, the Italians had lost Zadar along with the naval base at Kotor and chunks of Dalmatia they had greedily acquired during the war, while Albania, after an agonizing period of first Italian and then German occupation, had recovered its independence under the Paris-educated Communist leader Enver Hoxha, whose uncompromising stance was to bring his country into ever-greater isolation. When he took power, Hoxha imagined that his country would form part of a brotherly band of socialist nations, alongside Tito’s renascent Yugoslavia and the Soviet Union. Close ties with the Yugoslavs were sealed by economic pacts which reveal Tito’s hope of drawing Albania into the Yugoslav federation. Hoxha had other aspirations, and in his view Albania’s right to defend every square inch of the national territory extended into the waters off the Albanian coast: the Corfu Channel, long used as a waterway linking Greece to the Adriatic, was mined to prevent foreign incursions. Britain decided to send warships through the channel, asserting its right to police the Mediterranean on behalf of the nations of the world.


2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Michail Moatsos

Abstract In October 2015 the World Bank initiated the Atkinson Commission on Global Poverty seeking advise on (1) keeping the international poverty line (iPL) constant in real terms, and (2) what else the Bank should make available to complement the dollar-a-day estimates. The Commission’s Report bears a set of 21 key recommendations, largely covering the most important voiced worries of the research community over the Bank’s methods and estimates. In response the Bank adopted fully and unconditionally only one–out of ten–recommendations regarding point one above, and three–out of nine–recommendations to the second point. In addition the Bank accepted one of the two overarching recommendations. Among the remaining 16 sidelined or partially accepted recommendations lies arguably the most obvious and important one: the urge that the Bank publishes the error terms of its estimates. Without them these estimates are supported by little else other than the administrative authority of the Bank.


Author(s):  
Barbara Carminati ◽  
Elena Ferrari ◽  
Patrick C.K. Hung

A Web service is a software system that supports interoperable application-to-application interactions over a network. Web services are based on a set of XML standards such as Universal Description, Discovery and Integration (UDDI), Web Services Description Language (WSDL), and Simple Object Access Protocol (SOAP). Recently, there have been increasing demands and discussions about Web services privacy technologies in the industry and research community. To enable privacy protection for Web service consumers across multiple domains and services, the World Wide Web Consortium (W3C) published a document called “Web Services Architecture (WSA) Requirements” that defines some fundamental privacy requirements for Web services. However, no comprehensive solutions to the various privacy issues have been so far defined. For these reasons, this chapter will focus on privacy technologies by first discussing the main privacy issues in WSA and related protocols. Then, this chapter illustrates the standardization efforts going on in the context of privacy for Web services and proposes different technical approaches to tackle the privacy issues.


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