scholarly journals Nordugrid ARC Datastaging and Cache: Efficiency gains on HPC and cloud resources

2020 ◽  
Vol 245 ◽  
pp. 03011
Author(s):  
Maiken Pedersen ◽  
Balazs Konya ◽  
David Cameron ◽  
Mattias Ellert ◽  
Aleksandr Konstantinov ◽  
...  

The Worldwide LHC Computing Grid (WLCG) is today comprised of a range of different types of resources such as cloud centers, large and small HPC centers, volunteer computing as well as the traditional grid resources. The Nordic Tier 1 (NT1) is a WLCG computing infrastructure distributed over the Nordic countries. The NT1 deploys the Nordugrid ARC-CE, which is non-intrusive and lightweight, originally developed to cater for HPC centers where no middleware could be installed on the worker nodes. The NT1 runs ARC in the native Nordugrid mode which contrary to the Pilot mode leaves jobs data transfers up to ARC. ARCs data transfer capabilities together with the ARC Cache are the most important features of ARC. In this article we will describe the datastaging and cache functionality of the ARC-CE set up as an edge service to an HPC or cloud resource, and show the gain in efficiency this model provides compared to a traditional pilot model, especially for sites with remote storage.

2019 ◽  
Vol 8 (2) ◽  
pp. 24-29
Author(s):  
Manjinder Kaur

This study tends to shed light on early childhood care and education (ECCE) institutions with special reference to kindergartens in Fukuoka, Japan. The choice of the topic for study was derived by the importance of ECCE in children’s life and huge economic growth of Japan after worst effects of world war-II, which are thought to be linked with the education that children receives in Japan. The study is limited to four kindergartens in Fukuoka City and observations made for the study refers to 2018. Herein, different types of institutions providing ECCE, their infrastructural set-up, activities, along with curriculum are discussed. At the end, issues and challenges of ECCE system in Japan are discussed. It has been observed that the infrastructural facility and nature of activities are of high quality. Each and every care is being taken to inculcate habits, as well as to maintain physical and intellectual growth of children. The children seem to be highly happy and enjoy learning via various activities in these schools. It is clear that the devised policies on education and care of children are implemented in full spirit.


COVID ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 717-727
Author(s):  
Parastoo Kheiroddin ◽  
Magdalena Gründl ◽  
Michael Althammer ◽  
Patricia Schöberl ◽  
Linda Plail ◽  
...  

(1) Background: With vaccination and new variants of SARS-CoV-2 on the horizon, efficient testing in schools may enable prevention of mass infection outbreaks, keeping schools safe places and buying time until decisions on feasibility and the necessity of vaccination in children and youth are made. We established, in the course of the WICOVIR (Where Is the COrona VIRus) study, that gargle-based pool-PCR testing offers a feasible, efficient, and safe testing system for schools in Germany when applied by central university laboratories. (2) Objectives: We evaluated whether this approach can be implemented in different rural and urban settings. (3) Methods: We assessed the arrangements required for successful implementation of the WICOVIR approach in a variety of settings in terms of transport logistics, data transfer and pre-existing laboratory set-up, as well as the time required to establish the set-up. (4) Results: We found that once regulatory issues have been overcome, all challenges pertaining to logistics, data transfer, and laboratory testing on different platforms can be solved within one month. Pooling and depooling of samples down to the individual test result were achievable within one working day in all settings. Local involvement of the community and decentralized set-ups were keys for success. (5) Conclusion: The WICOVIR gargle-based pool-PCR system is so robust and simple that it can be implemented within one month in all settings now or in future pandemics.


AGROFOR ◽  
2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Snežana JOVANOVIĆ ◽  
Goran TODOROVIĆ ◽  
Nikola GRČIĆ ◽  
Ratibor ŠTRBANOVIĆ ◽  
Rade STANISAVLJEVIĆ ◽  
...  

The aim of the present study was to determine effects of both, different types ofcytoplasm (cms-C, cms-S and fertile) and environmental factors on the kernel rownumber of 12 maize inbreds lines. The trial with inbred lines was set up in twolocations (Zemun Polje-Selection field and Zemun Polje-Školsko dobro) in 2013and 2014. Moreover, the three-replicate trials were set up according to therandomised complete block design within each type of cytoplasm. Each plot withinthe replicate consisted of four rows. Fertile versions of inbred lines were sown intwo border rows and they were pollinators for their sterile counterparts. Statisticbiometricdata processing was based on mean values per replicate and included theanalysis of variance. According to this analysis, significant differences in thekernel row number were established among inbred lines in dependence on the typeof cytoplasm, year and the location. The average kernel row number ranged from10.3 (L9) to 15.8 (L5 and L7). The variation of the kernel row number, related to thesource of cytoplasm, was very significant. Differences (Lsd0.01) in the kernel rownumber were not determined in inbred lines L5, L8, L10 and L12 in regard to the typeof cytoplasm: cms-C, cms-S and fertile. The average kernel row numbersignificantly (P1%) varied in regard to the year of investigation. A higher averagevalue (13.75) was established in 2014 than in 2013 (13.31). The kernel row numberper year very significantly varied (Lsd0.01) in all inbreds, but the differences werenot significant in the inbreds L2, L3, L8, L9 and L12. Gained results point out toeffects of different types of cytoplasm on the kernel row number.


2021 ◽  
Vol 20 (4) ◽  
pp. 32-37
Author(s):  
Dominik NEZNÍK ◽  
◽  
Ľubomír DOBOŠ

In this paper, will be presented actual research of the intelligent channel allocation. The intelligent channel allocation is based on combination of fuzzy logic method and game theory attributes to increase quality of link in network. The channel allocations will become an important phenomenon in different types of networks such as 5G technology, wireless networks (IEEE 802.11xx), Z-Wave, LoRa, 3G, 4G, etc. In the near future, new network technologies, Internet of Things (IoT) and Smart Cities will need to have intelligent channel allocation to prevent interference on the channels used for data transfer. These networks along with IoT are considered as promising technology, that interconnects different types of networks into one fully functional network. The aim of this paper is to present the concept of a methods for channel allocation in wireless networks, where channels work as communication medium based on IEEE 802.11xx technology. The simulations prove, that proposed method is able to provide lower interference, improve data rates and increase quality of links.


2021 ◽  
Vol 12 (1) ◽  
pp. 192-203
Author(s):  
Martin Holubčík ◽  
Jakub Soviar

Abstract Modern controlling is an interdisciplinary field that allows management to manage properly, thereby creating the basis for good decision-making. Logistics operations in smart companies need to be not only properly set up, but also properly controlled and improved. The purpose of the article is to analyze the controlling environment in a selected company and point out possible improvements in logistics activities and devices, with a view to preventing different types of problems. For this purpose, observations of the internal logistics processes in a selected company were used and quantified to assess its internal state. On the basis of the data, controlling measures are put forward to improve the management of the company’s logistics activities. The results of the research highlight the opportunities that exist through controlling activities to collect and analyze information about the logistics activities of a company. By doing so, employees can be given greater responsibility for the fulfilment of their tasks and contribute to the streamlining of logistics processes. For managers, the implementation of controlling represents a change in the way of thinking and managing a company.


Author(s):  
Pankaj Kamthan

In recent years, there has been a steady shift in the nature of Web applications. The vehicle of this transition of Web applications is us, the people. The ability to post photographs or videos, exchange music snippets with peers, and annotate a piece of information, are but a few exemplars of this phenomenon. Indeed, the pseudonym Web 2.0 (O’Reilly, 2005) has been used to describe the apparent “socialization” of the Web. In spite of the significant prospects offered by humancentric Web applications, the mere fact that virtually anyone can set up such applications claiming to sell products and services or upload/post unscrutinized information on a topic as being “definitive,” raises the issues of credibility from a consumers’ viewpoint. Therefore, establishing credibility is essential for an organization’s reputation and for building consumers’ trust. The rest of the article is organized as follows. We first provide the background necessary for later discussion. This is followed by the introduction of a framework within which different types of credibility in the context of human-centric Web applications can be systematically addressed and thereby improved. Next, challenges and directions for future research are outlined. Finally, concluding remarks are given.


2019 ◽  
pp. 421-451
Author(s):  
Lucy Jones

This chapter discusses the common types of business organizations and explains the difference between unincorporated and incorporated businesses. The three types of partnership arrangements are considered, namely a general (ordinary) partnership, a limited partnership, and a limited liability partnership. The chapter includes discussion of the rules relating to partnerships under the Partnership Act 1890 and the Limited Liability Partnership Act 2000. It explains how different types of partnerships may be set up and looks at the relationship between partners and the relationship between partnerships and outsiders. It considers the dissolution of the different types of partnerships. The chapter concludes with a discussion of the different types of companies and the separate legal personality of companies.


Author(s):  
Lucy Jones

This chapter discusses the common types of business organisations and explains the difference between unincorporated and incorporated businesses. The three types of partnership arrangements are considered, namely a general (ordinary) partnership, a limited partnership, and a limited liability partnership. The chapter includes discussion of the rules relating to partnerships under the Partnership Act 1890 and the Limited Liability Partnership Act 2000. It explains how different types of partnerships may be set up and looks at the relationship between partners and the relationship between partnerships and outsiders. It considers the dissolution of the different types of partnerships. The chapter concludes with a discussion of the different types of companies and the separate legal personality of companies.


1983 ◽  
Vol 78 (3) ◽  
pp. 335-341 ◽  
Author(s):  
Frederico Simões Barbosa ◽  
Dirceu P. Pereira da Costa ◽  
Francisco Arruda

For the development of laboratory experiments on the competitive interacitons between freshwater snail populations, special snail rooms were set up in the main building of the Research Center "Aggeu Magalhães". In the current paper, the first of a series on this subject, the general methodology of the laboratory work is described in detail. Using indoor cement channels in which a uniform seminatural environment was created, interactions of freshwater snail populations can be studied with minimal interference of the usual variables. Controlled indoor environmental techniques, as described in the current paper, may also be utilized in different types of experiments in malacology, and represent a substantial technical advance in malacological work.


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