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Wyświetlanie 1-15 z 29
Tytuł:
Remarks on the tightness of cocycles
Autorzy:
Aaronson, Jon
Weiss, Benjamin
Powiązania:
https://bibliotekanauki.pl/articles/965624.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
We prove a generalised tightness theorem for cocycles over an ergodic probability preserving transformation with values in Polish topological groups. We also show that subsequence tightness of cocycles over a mixing probability preserving transformation implies tightness. An example shows that this latter result may fail for cocycles over a mildly mixing probability preserving transformation.
Źródło:
Colloquium Mathematicum; 2000, 84/85, 2; 363-376
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A cut salad of cocycles
Autorzy:
Aaronson, Jon
Lemańczyk, Mariusz
Volný, Dalibor
Powiązania:
https://bibliotekanauki.pl/articles/1205306.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
We study the centraliser of locally compact group extensions of ergodic probability preserving transformations. New methods establishing ergodicity of group extensions are introduced, and new examples of squashable and non-coalescent group extensions are constructed.
Źródło:
Fundamenta Mathematicae; 1998, 157, 2-3; 99-119
0016-2736
Pojawia się w:
Fundamenta Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thick subcategories of the stable module category
Autorzy:
Benson, D.
Carlson, Jon
Rickard, Jeremy
Powiązania:
https://bibliotekanauki.pl/articles/1205438.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
We study the thick subcategories of the stable category of finitely generated modules for the principal block of the group algebra of a finite group G over a field of characteristic p. In case G is a p-group we obtain a complete classification of the thick subcategories. The same classification works whenever the nucleus of the cohomology variety is zero. In case the nucleus is nonzero, we describe some examples which lead us to believe that there are always infinitely many thick subcategories concentrated on each nonzero closed homogeneous subvariety of the nucleus.
Źródło:
Fundamenta Mathematicae; 1997, 153, 1; 59-80
0016-2736
Pojawia się w:
Fundamenta Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Why Trust Academia? A Reflection on the Credibility of Specialists
Dlaczego ufać akademii? Refleksja nad wiarygodnością specjalistów
Autorzy:
Jajszczok, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/1828290.pdf
Data publikacji:
2021-03-11
Wydawca:
Akademia Techniczno-Humanistyczna w Bielsku-Białej
Tematy:
Academia
Yuval Noah Harari
Gustave Le Bon
Jon Ronson
trust
Akademia
Gustave Le Bon Jon Ronson zaufanie
Opis:
Using examples from popular culture and history, the author speculates on the reasons and possible solutions to the crisis of trust in academia, especially along the line dividing specialists from non-specialists. The article begins with two case studies (of Yuval Noah Harari and Gustave Le Bon) that highlight the problem of conscious or otherwise data manipulation and the intention behind it. In the second part of the article, a broader approach is adopted to the matters of ethics of research and especially the crucial issue of the awareness (or lack thereof) of self-limitations and biases of which perhaps no academic is free. The article ends with the assertion that rather than individual researchers, we should trust in the academic process of the never-ending peer review.
Na podstawie przykładów zaczerpniętych z kultury popularnej i historii autorka spekuluje na temat przyczyn i możliwych rozwiązań kryzysu zaufania do środowiska akademickiego, zwłaszcza wzdłuż osi specjaliści-niespecjaliści. Artykuł rozpoczyna się od dwóch studiów przypadku (Yuvala Noaha Harariego i Gustave'a Le Bona), które podkreślają problem świadomej lub nieświadomej manipulacji danymi i intencji, która za tym stoi. W drugiej części artykułu podjęto szersze rozważania na temat zagadnień etyki badań, a zwłaszcza kluczowej kwestii świadomości (lub jej braku) samoograniczeń i uprzedzeń, od których być może żaden naukowiec nie jest wolny. Artykuł kończy się stwierdzeniem, że zamiast indywidualnym badaczom, powinniśmy ufać akademickiemu procesowi niekończącej się recenzji (peer review).
Źródło:
Świat i Słowo; 2021, 36, 1; 15-28
1731-3317
Pojawia się w:
Świat i Słowo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GPU software and architecture comparison for numerical simulation of partial deferential equations
Autorzy:
May, Jon B.
Pera, Donato
Powiązania:
https://bibliotekanauki.pl/articles/1955286.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska
Tematy:
GPGPU
PDE
Opis:
This paper will show a comparison between the Kepler, Maxwell and Pascal GPU architectures using CUDA-Fortran, with and without dynamic calls, to efficiently solve partial differential equations. The target is to show the possibility of using affordable hardware, such astheGTX670,GTX970 andGTX1080 NVIDIA GPUs, which are commonly found in personal and portable computers, for scientific applications. For simplicity we consider a standard wave equation where we use a second order finite difference method for the spatial and time discretizations to obtain the numerical solution. We found that, as we increase the spatialre solution of the domain we also increase the performance difference between the GPU and the Central Processing Unit (CPU).
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2018, 22, 1; 85-100
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Doomsday Argument Reconsidered
Autorzy:
Mills, Jon
Powiązania:
https://bibliotekanauki.pl/articles/451349.pdf
Data publikacji:
2020-11-05
Wydawca:
Uniwersytet Warszawski. Wydział Filozofii
Tematy:
Doomsday Argument
Doomsday Clock
climate change
nuclear warfare
techno warfare
terrorism
existential risk studies
Opis:
In our current unstable world, nuclear warfare, climate crises, and techno nihilism are three perilous clouds hovering over an anxious humanity. In this article I examine our current state of affairs with regard to the imminent risk of nuclear holocaust, rapid climate emergencies destroying the planet, and the cultural and political consequences of emerging technologies on the fate of civilization. In the wake of innumerable existential threats to the future of our world, I revisit the plausibility of the Doomsday Argument, which predicts the end of human existence.
Źródło:
Eidos. A Journal for Philosophy of Culture; 2020, 4, 3; 113-127
2544-302X
Pojawia się w:
Eidos. A Journal for Philosophy of Culture
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Notes on a Lost Book: Philological Questions and Symbols of the Sui-jŏn
Autorzy:
Riotto, Maurizio
Powiązania:
https://bibliotekanauki.pl/articles/30040820.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Kultur Śródziemnomorskich i Orientalnych PAN
Tematy:
Sui-jŏn
Korea’s fantastic literature
Korean classic literature
Literature of the Koryŏ period
Opis:
This article deals with Sui-jŏn, an almost unknown work not only in the West but also scarcely studied in Korea itself. Written most likely between the 10th and 12th centuries, on the basis of older, unidentifiable sources, the Sui-jŏn appears to have been primarily a collection of fantastic tales. Today it is largely lost, but its partial reconstruction is possible through various fragments reported in later works. Precisely on the basis of these fragments, in the first part this article attempts to reconstruct, as far as possible, what must have been the nature of the book, its author, its genesis, its dating. In the second part, the symbology of some natural elements that appear in the fragments of the work is spoken of. It is a symbolism that belongs, in similar forms, to many cultures of the world, but which in the case of Korea becomes, in its presentation, a real milestone, being present in the oldest Korean work of its kind that came down to us, although partially.
Źródło:
Acta Asiatica Varsoviensia; 2022, 35; 201-231
0860-6102
Pojawia się w:
Acta Asiatica Varsoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Process of the Growth of Small and Medium-Sized Enterprises (SMEs)
Autorzy:
Gancarczyk, Marta
Zabalia-Iturriagagoitia, Jon Mikel
Powiązania:
https://bibliotekanauki.pl/articles/474906.pdf
Data publikacji:
2015
Wydawca:
Fundacja Upowszechniająca Wiedzę i Naukę Cognitione
Tematy:
growth
firm
theory
process
SME
Opis:
Firm growth is a central topic in the literature on entrepreneurship, strategic management and industrial organization, among others. For an individual entrepreneurial firm, growth is an evidence of the return of the entrepreneur’s investment and self-fulfillment. Growth is also a condition of survival for young and small businesses, as growing firms are found less vulnerable to failure than non-growers (Stam et al., 2006). The macroeconomic importance of firm expansion was recognized in the 1980s, when the phenomenon of gazelles or high-growth firms was first described as those capable of intense size increases within a limited time span (Birch, 1981; Birch & Medoff, 1994; Birch et al., 1994; Storey, 1994; Coad, 2009; Acs et al., 2008). According to empirical research gazelles form a small fraction of business population. However, they represent a disproportionally large share in new job creation (Storey, 1994; Coad 2009; Stam et al., 2006; Acs et al., 2008). Growing firms are also more likely to generate innovations, specifically product innovations involving technological advancements (Coad, 2009; Schreyer, 2000; Storey, 1994; Smallbone et al., 1995). Both researchers and policy makers interested in expansion, focus on rapidly growing firms and on small and medium-sized enterprises. This interest in high-growth enterprises is justified by the observation that the remaining population either grows slowly or does not perform any expansion (Coad, 2009). At the same time, gazelles are predominantly young, small and medium-sized enterprises (SMEs). The dynamics and economic contribution of firms’ growth are negatively associated with age and size, which corresponds to the observation that job losses are generated mainly by the established, large and non-growth firms (Acs et al., 2008). As firm expansion and growth have proved to be a condition for competitive advantage both at the level of individual firms and at the level of the economy at large, the phenomenon of firm growth has become a focus of research. One of the main purposes of this increasingly preeminent research stream is to provide recommendations for firm management and for economic policy, undergoing the risks and challenges in achieving expansion. However, in order to provide these recommendations, we need to better comprehend the entrepreneurial motivations and the attitudes towards growth, the stimuli and impediments to company growth, the potential mechanisms to firm growth and modes of expansion. This special issue seeks to contribute to the knowledge base on the growth process of entrepreneurial firms, which is an emerging stream of research on firm growth. This emerging stream complements the existing perspectives on expansion, which are more focused on: 1) companies’ internal adaptation mechanisms, as reflected in life cycle models, and on 2) determinants and predictors of firm growth (Dobbs & Hamilton, 2006; McKelvie & Wiklund, 2010). We present the focus provided in this special issue as complementary to existing approaches, aiming also to contribute with new findings in addressing some yet underexplored areas. The emerging stream of growth process refers to why and how growth is implemented through proactive entrepreneurial actions and decision-making processes, which are presented in complex organizational and environmental contexts, including cause-effect mechanisms in the history of company development. This holistic approach is a constituent feature of studies on the growth process. It differentiates from the currently dominating focus on the determinants of individual firm’s growth and from the earlier stage models of internal adaptation to the challenges imposed by expansion. In the following sections of this introductory paper, we discuss first the stream of research on the growth process in connection with the extant literature on firm growth. Then we highlight the contribution of the individual papers included in this special issue as well as the contribution aimed at by the entire issue as a whole. Finally, the conclusion delineates some potential pathways for further research as a result of the findings provided by the special issue.
Źródło:
Journal of Entrepreneurship, Management and Innovation; 2015, 11, 4; 3-24
2299-7075
2299-7326
Pojawia się w:
Journal of Entrepreneurship, Management and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tidewater glaciers of Svalbard: Recent changes and estimates of calving fluxes
Autorzy:
Błaszczyk, Małgorzata
Jania, Jacek A.
Hagen, Jon Ove
Powiązania:
https://bibliotekanauki.pl/articles/2051660.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
tidewater glaciers
calving flux
ASTER
Źródło:
Polish Polar Research; 2009, 30, 2; 85-142
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Volpower Panel of Integration Discussion
Autorzy:
Favell, Adrian
Fox, Jon
Mahendran, Kesi
Phillimore, Jenny
Scholten, Peter
Korkut, Umut
Atalay, Doga
Nicolson, Marcus
Powiązania:
https://bibliotekanauki.pl/articles/2233810.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
migration
integration
narratives
nationalism
social inclusion
Opis:
This discussion was held in April 2020 as a part of the Volpower Academic Workshop: Challenging Integration through Everyday Narratives. This is a creative effort to involve a live discussion and reflection on the theme and studies of integration in this special issue. It brings together Adrian Favell, Kesi Mahendran, Jenny Phillimore, and Jon Fox as established scholars and critiques of policy and research in the integration field in discussion with each other while queried by Peter Scholten.
Źródło:
Central and Eastern European Migration Review; 2023, 12, 1; 103-113
2300-1682
Pojawia się w:
Central and Eastern European Migration Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AIOSAT - Autonomous Indoor & Outdoor Safety Tracking System
Autorzy:
Adin, Iñigo
Zabalegui, Paul
Perez, Alejandro
Arrizabalaga, Jaione
Goya, Jon
Mendizabal, Jaizki
Powiązania:
https://bibliotekanauki.pl/articles/320458.pdf
Data publikacji:
2019
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
GNSS
Galileo
EDAS
tracking
firefighting
multisensor
fusion
communication optimization
Opis:
Even though satellite-based positioning increases rescue workers’ safety and efficiency, signal availability, reliability, and accuracy are often poor during fire operations, due to terrain formation, natural and structural obstacles or even the conditions of the operation. In central Europe, the stakeholders report a strong necessity to complement the location for mixed indoor-outdoor and GNSS blocked scenarios. As such, location information often needs to be augmented. For that, European Global Navigation Satellite System Galileo could help by improving the availability of the satellites with different features. Moreover, a multi-sensored collaborative system could also take advantage of the rescue personnel who are already involved in firefighting and complement the input data for positioning. The Autonomous Indoor & Outdoor Safety Tracking System (AIOSAT) is a multinational project founded through the Horizon 2020 program, with seven partners from Spain, Netherlands and Belgium. It is reaching the first year of progress (out of 3) and the overarching objective of AIOSAT system is to advance beyond the state of the art in tracking rescue workers by creating a high availability and high integrity team positioning and tracking system. On the system level approach, this goal is achieved by fusing the GNSS, EDAS/EGNOS, pedestrian dead reckoning and ultra-wide band ranging information, possibly augmented with map data. The system should be able to work both inside buildings and rural areas, which are the test cases defined by the final users involved in the consortium and the advisory board panel of the project.
Źródło:
Annual of Navigation; 2019, 26; 21-32
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exploring the importance of vocabulary for English as an additional language learners’ reading comprehension
Autorzy:
Brooks, Gavin
Clenton, Jon
Fraser, Simon
Powiązania:
https://bibliotekanauki.pl/articles/1902577.pdf
Data publikacji:
2021-09-13
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
English as an additional language (EAL)
vocabulary knowledge
general language ability
reading comprehension
Opis:
This exploratory study represents an attempt to investigate the factors that may affect the reading comprehension abilities of English as an additional language (EAL) learners. For this study, we examined a participant group of 31 (25 EAL and 6 first language English) learners studying at an international school in Japan. We assessed the participants according to four factors shown to influence reading comprehension: vocabulary knowledge, word decoding skills, reading fluency, and general linguistic ability. Our results show that differences in vocabulary knowledge show more variance in reading comprehension scores than the other factors examined in this study, highlighting the importance of vocabulary knowledge for reading comprehension. However, other factors such as reading fluency and general linguistic knowledge are also shown to be moderate to strong predictors of reading comprehension. Based on these results, we suggest that EAL learners need targeted language support to enhance academic text comprehension.
Źródło:
Studies in Second Language Learning and Teaching; 2021, 11, 3; 351-376
2083-5205
2084-1965
Pojawia się w:
Studies in Second Language Learning and Teaching
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 29

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