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Wyświetlanie 1-15 z 332
Tytuł:
A new algorithm for calculating the most reliable pair of disjoint paths in a network
Autorzy:
Gomes, T.
Craveirinha, J.
Violante, A.
Powiązania:
https://bibliotekanauki.pl/articles/308916.pdf
Data publikacji:
2006
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
reliability
OR in telecommunications
routing
Opis:
In various types telecommunication networks, namely mobile ad hoc networks, WDM networks and MPLS networks, there is the necessity of calculating disjoint paths for given node to node connections in order to increase the reliability of the services supported by these networks. This leads to the problem of calculating a pair of disjoint paths (or a set of disjoint paths) which optimises some measure of performance in those networks. In this paper we present an algorithm, designated as OptDP, for obtaining the most reliable pair of disjoint paths based on the loopless version of MPS, a very efficient k-shortest path algorithm, and on Dijkstra algorithm. Since to the best of our knowledge there is no other proposal of an algorithm capable of solving exactly the same problem we perform a comparison with the application to this problem of the DPSP algorithm which calculates a set of disjoint paths with high reliability. Also a comparison with a simplified version (designated as NopDP) of the proposed algorithm, which stops after a maximal number F of candidate pairs of paths have been found, is presented. The comparison also includes the percentage of cases in which both algorithms were not capable of finding the optimal pair.
Źródło:
Journal of Telecommunications and Information Technology; 2006, 4; 31-38
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uwarunkowania podejmowania decyzji o insourcingu w organizacji
Determinants of making decisions about insourcing in the organization
Autorzy:
Grela, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/547602.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
insourcing
backsourcing
make or buy
Opis:
W artykule przedstawiono uwarunkowania podejmowania decyzji o insourcingu w kontekście zmiany granic organizacji. Insourcing i outsourcing w odwrotny sposób oddziałują na kształtowanie granic organizacji. W wyniku włączenia do organizacji procesów realizowanych dotychczas poza jej strukturami (insourcing) granice organizacji powiększają się, zaś w wyniku stosowania outsourcingu granice organizacji zmniejszają się. W artykule zreferowano wybrane definicje insourcingu dostępne w literaturze. Opisano istotę i kryteria rozstrzygania dylematu kup lub wykonaj samodzielnie (ang. make or buy). Zaprezentowano podstawy teorii kosztów transakcyjnych oraz teorii zasobowej przedsiębiorstwa w kontekście wyboru sposobu pozyskiwania produktu wybranego procesu. Ponadto opisano motywy stosowania insourcingu wraz z przyczynami niepowodzenia projektów outsourcingowych według rodzajów przedsiębiorstw na rynku polskim. Przedstawiono również wyniki badań własnych w zakresie stopnia stosowania insourcingu i backsourcingu w polskich organizacjach. Wyniki przeprowadzonych badań potwierdzają występowanie zjawiska insourcingu i jego istotny statystycznie związek z wielkością organizacji. Praca powstała w wyniku realizacji projektu badawczego nr 2014/13/D/HS4/01921 finansowanego ze środków Narodowego Centrum Nauki.
The paper presents the conditions for making decisions about insourcing in the context of changing the boundaries of the organization. Insourcing and outsourcing affect, in the opposite ways, the shaping of the organization’s boundaries. As a result of including in the organization processes carried out so far outside its structures (insourcing), the organization’s borders grow, and as a result of outsourcing, the organization’s borders are reduced. The paper presents selected definitions of insourcing available in literature. It describes the essence and criteria for resolving the dilemma of make or buy. The basics of transaction costs theory and resource theory of the company in the context of choosing the way of obtaining the product of a selected process are presented. In addition, the motives of insourcing along with the reasons for the failure of outsourcing projects by types of companies on the Polish market are described. The results of our own research on the use of insourcing and backsourcing in Polish organizations are also presented. The results of the conducted research confirm the phenomenon of insourcing and its statistically significant connection with the size of the organization. The study was conducted as a result of research project no. 2014/13/D/HS4/01921 financed from the funds of the National Science Center.
Źródło:
Nierówności Społeczne a Wzrost Gospodarczy; 2019, 58; 164-175
1898-5084
2658-0780
Pojawia się w:
Nierówności Społeczne a Wzrost Gospodarczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Primary simplex method for flow network
Autorzy:
Jabłonowski, Janusz
Zorychta, Krystian
Powiązania:
https://bibliotekanauki.pl/articles/747910.pdf
Data publikacji:
1990
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Programming involving graphs or networks
Opis:
.
This paper describes an efficient network simplex algorithm for solving minimum-cost network flow problems. The algorithm derives from a theoretical characterization of the network topology of the basis embodied in a specially constructed basis tree. Experimentation with large sparse mini- mum-cost network flow problems has shown that in practice good implemen-tation of the network simplex method is more efficient than other implemen-tations based on special network flow methods.
Źródło:
Mathematica Applicanda; 1990, 18, 32
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Amount of Information Remembered by the Perpetrator in the Context of the Application of the Guilty Knowledge Technique in Criminal Investigation ‒ a Pilot Study
Autorzy:
Tarabuła, Marcin
Widacki, Michał
Powiązania:
https://bibliotekanauki.pl/articles/523296.pdf
Data publikacji:
2016-06-01
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
Guilty Knowledge Technique
GKT or CQT
Źródło:
European Polygraph; 2016, 10, 2; 63-76
1898-5238
2380-0550
Pojawia się w:
European Polygraph
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza kosztów transportu gospodarczego na przykładzie wybranych przedsiębiorstw przemysłowych
Analysis of own account transport costs in selected industrial enterprises
Autorzy:
Wysocka, A.
Powiązania:
https://bibliotekanauki.pl/articles/319732.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
transport gospodarczy
dylemat make or buy
koszty działalności
market transport
make or buy dillema
operating costs
Opis:
Współcześnie przedsiębiorstwa starają się zoptymalizować koszty wynikające z ich działalności. W artykule poruszono kwestię kosztów eksploatowania własnych środków transportowych. Przedstawiono wyniki badań wśród przedsiębiorstw przemysłowych. Celem artykułu była analiza kosztów transportu gospodarczego, istotna w kontekście wspomagania strategicznych działań przedsiębiorstw. Jednym z rozwiązań, jakie można zastosować w celu podjęcia decyzji o wyborze rodzaju transportu, jest metoda make or buy (MoB). Została jej poświęcona druga część artykułu.
In modern times and in the current economic situation, companies are trying to optimize the costs resulting from their activities. The article discusses the issues of exploitation cost of its own means of transport. It has been presented the results of research among industrial companies. The purpose of this article is to analyze strategic support for businesses. One of the solutions that can be used for this purpose is the method of “make or buy”.
Źródło:
Zeszyty Naukowe. Problemy Transportu i Logistyki / Uniwersytet Szczeciński; 2014, 25; 191-204
1640-6818
Pojawia się w:
Zeszyty Naukowe. Problemy Transportu i Logistyki / Uniwersytet Szczeciński
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Principle of Non-refoulment within the Deportation Procedure, Admission to the Country, Right to Life and the Freedom of Torture and Inhuman or Degrading Treatment or Punishment According to the Turkish Legislation on Temporary Protection Regime
Autorzy:
Kuruçaylıoğlu, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2032657.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
non-refoulement
right to life
freedom from torture and inhuman or degrading treatment or punishment
temporary protection
Opis:
This article elaborates on the non-refoulement principle regarding deportation procedure, security, and entry to the country (Turkey) under the 2014 Temporary Protection Regulation, and the 2013 Law on Foreigners and International Protection. According to the document presented by the United Nations Human Rights Office of the High Commissioner “(…) the principle of non-refoulement guarantees that no one should be returned to a country where they would face torture, cruel, inhuman, or degrading treatment or punishment and other irreparable harm. This principle applies to all migrants at all times, irrespective of migration status”.1 The rights of refugees and asylum seekers in mass influx situations are recognized by UNHCR Executive Committee resolutions and general international law.2 Thus, it is necessary to analyze the non-refoulement rule as inseparable part of globally accepted principles: the right to life and the freedom from torture and inhuman or degrading treatment or punishment. The article describes the development and violations of the said rule, focusing on the pertinent current Turkish legislation.
Źródło:
Studia Administracyjne; 2021, 14, 2; 31-44
2080-5209
2353-284X
Pojawia się w:
Studia Administracyjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the multiplicative Zagreb coindex of graphs
Autorzy:
Xu, K.
Das, K. Ch.
Tang, K.
Powiązania:
https://bibliotekanauki.pl/articles/254706.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
vertex degree
tree
upper or lower bound
Opis:
For a (molecular) graph G with vertex set V (G) and edge set E(G), the first and second Zagreb indices of G are defined as [formula] and [formula] respectively, where dG(v) is the degree of vertex v in G. The alternative expression of M1 (G) is [formula]. Recently Ashrafi, Doslic and Hamzeh introduced two related graphical invariants [formula] and [formula] named as first Zagreb coindex and second Zagreb coindex, respectively. Here we define two new graphical invariants [formula] and [formula] as the respective multiplicative versions of [formula]. In this paper, we have reported some properties, especially upper and lower bounds, for these two graph invariants of connected (molecular) graphs. Moreover, some corresponding extremal graphs have been characterized with respect to these two indices.
Źródło:
Opuscula Mathematica; 2013, 33, 1; 191-204
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Predicative expression - its semantic and formal structure
Wyrażenie predykatywne – jego struktura semantyczna i formalna
Autorzy:
Topolińska, Zuzanna
Powiązania:
https://bibliotekanauki.pl/articles/2084556.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Constitutive predicate
time
‘aspect’, or ‘mood’
most numerous
Opis:
The author analyses the structure of the predicative expression, i.e. a mor-phosyntactic construction functioning as the so-called constitutive predicate of the proposition in question. She illustrates her analysis with examples from Polish and from Macedonian – two languages whose grammatical systems are maximally typologicaly opposed in the frame of the Slavic linguistic group. She states that the predicative expression is composed of 1) constitutive form of verbum finitum and 2) its adjuncts formalized as adverbia and/or adverbialia responding to the questions: when? how long? how? in which mood? in which way? and carrying supplementary information from the semantic domains of the grammatical categories characteristic of the finite verb, such as ‘time’, ‘aspect’, or ‘mood’; most numerous are those informing (a) on the location of the referred to event on the time-axis or (b) on the procedure leading to the realization of that event.
Źródło:
Rocznik Slawistyczny; 2020, 69; 187-192
0080-3588
Pojawia się w:
Rocznik Slawistyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Androgenic potential of polish barley cultivars in anther culture in vitro
Autorzy:
Kruczkowska, H.
Pawłowska, H.
Skucińska, B.
Powiązania:
https://bibliotekanauki.pl/articles/2198872.pdf
Data publikacji:
2005-06-23
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
androgenesis
anther culture
barley
cold or mannitol pretreatment
Opis:
The aim of the research was to assess the androgenic potential of 21 Polish cultivars of spring and winter barley. On average, a few green plants developed per 100 anthers. Cold pretreatment proved conducive to the formation of embryos/calli, while mannitol pretreatment favoured green plant development. The first embryos/calli formed on the induction medium developed most efficiently. The authors chose FHG medium supplemented with 1 mg/l BAP and 0.2 mg/l 2,4-D (induction of androgenesis) and FHG medium supplemented with 0.4 mg/l BAP and 3% maltose (plant development).
Źródło:
Plant Breeding and Seed Science; 2005, 51; 57-66
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knowledge of and opinion on organ transplantation among priests of selected Christian religion
Autorzy:
Grochala, M.
Boratyński, W.
Powiązania:
https://bibliotekanauki.pl/articles/1918773.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Transplantation
Christian religion
or-gan donation
medical law
Opis:
Introduction: As Polish society is in its majority Christian, the knowledge and attitudes presented by priests may have a tangible impact on Church mem-bers’ decisions concerning organ donation. Purpose: To evaluate the knowledge, attitudes, and decisions of priests of various Christian denomina-tions regarding organ transplants in Poland. Materials and methods: The paper presents the re-sults of a study carried out in the form of a question-naire survey of 86 priests. Survey participants in-cluded priests of 3 most common Christian denomi-nations in Poland: Catholic, Protestant and Eastern Orthodox. Results: Awareness of the current regulatory frame-work among the clergy is relatively low. Only a small percentage gave correct answers to questions about applicable laws regulating the matter of organ transplantation in Poland. Conclusions: Data gathered during the study implies a positive attitude among priests towards organ transplantation performed to save life and improve health. A vast majority of survey participants support the idea of transplantation. The problem is low awareness of existing documents and laws regulating organ transplantation.
Źródło:
Progress in Health Sciences; 2018, 8(2); 1-9
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Samorząd terytorialny w kryzysach III RP. Zarys problematyki
Local government in the crises in the Third Polish Republic. An outline of the issue
Autorzy:
Piasecki, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/16647951.pdf
Data publikacji:
2023-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
crisis
local government
communes (or municipalities)
administration
politics
Opis:
During the majority of Polish crises, apart from the reaction of the central authorities, the responses of the local institutions were also noticeable. The very creation of local government in 1990 materialized under conditions of the profound political, social and economic crisis. In 1997, the flood revealed the weaknesses in the administration of the commune. In turn, the strength of frustration that was accumulated in many local communities, manifested itself during the agricultural protests in 1999. The global financial crisis (2008–2009) has had the mild impact on Poland, but it caused a breakdown in many communes. Similarly, the effects of social unrest during the pandemic and the wave of refugees from across the eastern border (2020–2022) were unevenly distributed. This article is an attempt to address the questions concerning its title: did the crises turn out to be more of a threat or an opportunity for local communities? To what extent have the crises revealed the specific functioning of local government? Were local councilors and municipality staff able to work effectively under the extreme circumstances? How to assess the crisis experiences in the context of legal and institutional changes.
Źródło:
Krakowskie Studia Małopolskie; 2023, 3(39); 141-167
1643-6911
Pojawia się w:
Krakowskie Studia Małopolskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conflicts over the Language of Additional Services in the Diocese of Sejny or Augustów in the Second Half of the Nineteenth and Early Twentieth Centuries
Autorzy:
Katilius, Algimantas
Powiązania:
https://bibliotekanauki.pl/articles/30146562.pdf
Data publikacji:
2022-12-30
Wydawca:
Wydawnictwo Diecezjalne Adalbertinum
Tematy:
Diocese of Sejny or Augustów
Language
Polska
Lithuania
Opis:
In 1898, a questionnaire was sent the parish clergy on behalf of Antanas Baranauskas, Bishop of Sejny, in which, among other things, they were asked about the local languages used in church practice. An analysis of the clergy’s answers shows that at the end of the nineteenth century, there were not many potential parishes in the diocese of Sejny or Augustów where conflicts over the use of languages in the additional services could arise. The Lithuanian language was well established in most Lithuanian parishes or in those with few Polish believers. The most important source for studying the causes and development of linguistic conflicts in parishes is the parishioners’ petitions written to their spiritual superiors and to the civil authorities. These petitions include demands of each side, explain the situation, and ask for a change in the situation with regard to one language or the other. In the appeals written by the Lithuanian believers, the justification of the introduction of the Lithuanian language in additional services was that the majority of the believers in the parish were of Lithuanian nationality and that most of the parishioners did not understand Polish. The reason given by the Polish believers in their petitions was the tradition, i.e., that the Polish language had been around for a long time or that their ancestors built a particular church. The reactions of the hierarchs of the diocese of Sejny or Augustów to linguistic conflicts in the parishes depended on the number of believers of one nationality or the other in a parish. This was to maintain the principle of fairness, so that neither side would be disadvantaged. In the parishes discussed, the majority of the believers were Lithuanian parishioners, and this was taken into account in determining the proportions of sermons, hymn-singing, and other liturgical rites. The use of Polish in additional services was thus given its proper place.
Źródło:
Studia Ełckie; 2022, 24, 4; 501-524
1896-6896
2353-1274
Pojawia się w:
Studia Ełckie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algorytmy heurystyczne dla problemu minimalizacji sumy kosztów zadań opóźnionych
Heuristics algorithms for the single machine total tardiness problem.
Autorzy:
Wodecki, Mieczysław
Powiązania:
https://bibliotekanauki.pl/articles/748154.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Scheduling theory, deterministic
Programming involving graphs or networks
Opis:
W pracy rozpatrujemy problem minimalizacji sumy kosztów opóźnień zadań wykonywanych na jednej maszynie. Należy on do klasy problemów silnie NP-zupełnych. Zamieszczone w literaturze wyniki obliczeniowe wskazują, że w rozsądnym czasie można uzyskać jego rozwiązanie optymalne jedynie dla przykładów o niewielkich rozmiarach. Z tego właśnie powodu proponujemy szybki algorytm heurystyczny oraz algorytm typu „popraw” oparty na metodzie tabu search.
This paper presents approximations algorithms for the single machine total weighted tardiness problems. The algorithms is based on a tabu search technique with a specific neighborhood definition. Results of testing the algorithms on large number of randomly generated examples are also given and analysed.
Źródło:
Mathematica Applicanda; 1999, 27, 41
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Outsourcing strategy selection for transportation services based on the Make-or-Buy decision
Wybór strategii outsourcingowej na usługi transportowe na podstawie decyzji typu Make-or-Buy
Autorzy:
Cieśla, M.
Powiązania:
https://bibliotekanauki.pl/articles/374944.pdf
Data publikacji:
2015
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
outsourcing
make or buy decision
logistics strategy
outsourcing strategy
transportation service
decyzja typu make-or-buy
strategia logistyczna
strategia outsourcingowa
usługa transportowa
Opis:
This paper is related to the practical approach to logistics strategies in enterprises and advanced practical applications. This article presents an analysis and solution to a specific problem, which is the subject of transport in the enterprise. It presents an analysis based on Make-or-Buy decision involving the selection of best internal or external transport service. It will be used for an exemplary production company. This case study presents the basis for the construction of logistics strategy of the company as a competitive advantage in the market.
Niniejszy artykuł jest związany z praktycznym podejściem do strategii logistycznych w przedsiębiorstwach i zaawansowanych zastosowań praktycznych. Przedstawiono tu analizę i rozwiązanie konkretnego problemu decyzyjnego, jakim są usługi transportu w przedsiębiorstwie. Przeprowadzono analizę na podstawie decyzji Make-or-Buy pozwalającej na wybór najlepszych usług transportu wewnętrznego lub zewnętrznego. Przykład taki omówiono dla przykładowego przedsiębiorstwa produkcyj-nego. Opracowanie takiej analizy stanowi podstawę do budowy strategii logistycznej firmy niezbędnej dla zwiększenia jej przewagi konkurencyjnej na rynku.
Źródło:
Transport Problems; 2015, 10, 2; 91-98
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
To have or to be. Return to the question of essence of happiness
Autorzy:
Zaleśkiewicz, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/704197.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
approach to life
happiness
to have or to be
Opis:
One of the main human goals is to achieve the state of happiness. Almost all people ask themselves the question of how to attain this goal. For thousands of years, philosophers and spiritual leaders and, nowadays, researchers representing various disciplines of social sciences, have been searching for the right answer to this question. One of the dilemmas intertwined in the debate about the essence of happiness relates to the tension expressed by the question “to be or to have”; the tension between the spiritual and the material world; between sacrum and profanum. Can accumulation of money and material possessions make us happy? Starting with the message passed on by a German psychoanalyst Erich Fromm in his essay “To Have or to Be” and the wisdom derived from the classic philosophical and religious works, I will attempt to define the relation between the state of happiness and the attachment to money and possessions or the attachment to social and transcendent values. This difficult, yet crucial, problem will be analyzed in the context of the current psychological knowledge related to the emotional and cognitive consequences of taking a materialistic approach to life. Erich Fromm and other thinkers who had lived hundreds of years before him, suggested that greed and pursuit of material possessions did not appease the human longing for happiness. The latest experimental research, conducted by psychologists, economists and scholars representing other disciplines of science, seem to strongly confirm these assumptions.
Źródło:
Nauka; 2019, 1
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
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