Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "hypothesis" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-50 z 242
Tytuł:
Nonparametric tests for the two-sample location problem
Autorzy:
Grzegorzewski, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/748118.pdf
Data publikacji:
1991
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Hypothesis testing
Opis:
.
Let X1,X2,...,Xm and Y1,Y2,...,Yn be two independent random samples from populations with continuous distribution functions F(x) and G(x)=F(x - ) respectively. In order to test H: =0 against K:A>0 several tests can be used. Thirteen such nonparametric tests are presented here. By means of a sampling study a comparison of these tests are performed. The criteria of the power and the power index was used. Related problems are discussed as well. An algorithm (in Pascal) for computation of the critical level of the Mann-Whitney- Wilcoxon test is given also.
Źródło:
Mathematica Applicanda; 1991, 20, 34
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bias of certain tests for the two-sample problem
Autorzy:
Hellmann, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/748236.pdf
Data publikacji:
1980
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Hypothesis testing
Opis:
.
Let X1,⋯,Xn and Y1,⋯,Yn be two independent samples from cumulative distribution functions F and G, respectively. The author discusses the problem of unbiasedness of certain rank tests in the context of verifying H0:F=G against one of the "two-sided'' alternatives H1:F≠G; H2:P(X>Y)
Źródło:
Mathematica Applicanda; 1980, 8, 16
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An accurate test for testing the Hardy-Weinberg equilibrium hypothesis
Autorzy:
Gnot, Stanisław
Matej, Henryk
Szulga, Teofil
Powiązania:
https://bibliotekanauki.pl/articles/748793.pdf
Data publikacji:
1979
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Genetics,Hypothesis testing
Opis:
Zbl 0465.62098; MR0549989
The paper includes uniformly most powerful unbiased test for a genetic model with two possible kinds of genes. This test is constructed on the basis of general theory of testing linear hypotheses for families of exponential distributions. An example of application for the system MN of blood-groups is given. Zbl 0465.62098; MR0549989
Źródło:
Mathematica Applicanda; 1979, 7, 15
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nonlinear homogenization of heterogeneous periodic plates of Reissner-Mindlin type
Autorzy:
Pruchnicki, Erick
Powiązania:
https://bibliotekanauki.pl/articles/1839643.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
homogenization
plate
nonlinear hypothesis
Opis:
In this paper, we propose a multiscale finite-strain plate theory for a composite nonlinear plate described by a repetitive periodic heterogeneity. We consider two scales, the macroscopic scale is linked to the entire plate and the microscopic scale is linked to the size of the heterogeneity. At the macroscopic scale, we approximate the displacement field by the Reissner-Mindlin model. By considering the equivalence between variations of the macroscopic elastic energy at each point of the mid surface and the microscopic one, we deduce that the macroscopic stress resultants can be expressed in terms of the microscopic stress.
Źródło:
Journal of Theoretical and Applied Mechanics; 2020, 58, 2; 317-323
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czy schizofrenia jest chorobą neuodegeneracyjną, czy neurorozwojową?
Is schizophrenia a neurodegenerative or neurodevelopmental disease?
Autorzy:
Rabe-Jabłońska, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/945685.pdf
Data publikacji:
2005
Wydawca:
Medical Communications
Tematy:
dowody
evidence
hipoteza neurodegeneracyjna
hipoteza neurorozwojowa
neurodegenerative hypothesis
neurodevelopmental hypothesis
schizofrenia
schizophrenia
Opis:
According to the neurodevelopmental theory, etiological and pathological factors of a disease occur long before its symptoms. Cessation of the normal course of neuronal development causes disorders in their function and neuronal network, whereas after latency it leads to clinical manifestation of symptoms. In neurodegenerative diseases the specifically pathophysiological process, usually conditioned genetically, impairs selectively the ”sensitive” population of neurons and causes neuropathological symptoms and changes. The course and nature of these dysfunctions depend on superimposing of the pathological process on the normal process of development and puberty, and on individual plasticity and compensatory processes in the central nervous system. Schizophrenia meets some of these criteria, but it does not fit into the narrow definition of neurodegenerative diseases. So far no histopathological, immunocytochemical changes have been found, which would allow to identify the disease. However as early as during the first episode, most patients exhibit some characteristics of clinical deterioration, afterwads the status of most of them gets stabilized at a certain level of cognitive and social functioning, whereas in some patients the severity of the disease and cognitive dysfunctions gradually progress. The progression of schizophrenic process is also reflected in evolution of symptoms in the course of the disease, in biochemical and anatomical changes of the central nervous system. Presently, the neurodegenerative hypothesis of schizophrenia cannot be rejected. It may appear true only in a part of the patients with specific course of the disease, and in some cases neurodegeneration may be superimposed on neurodevelopmental disorders.
Zgodnie z teorią neurorozwojową etiologiczne i patologiczne czynniki choroby występują na długo przed jej objawami. Przerwanie prawidłowego przebiegu rozwoju neuronalnego powoduje zaburzenia ich funkcji oraz sieci neuronalnej, a po okresie latencji doprowadza do klinicznej manifestacji objawów. W chorobach neurodegeneracyjnych specyficzny patofizjologiczny proces, najczęściej uwarunkowany genetycznie, uszkadza selektywnie „wrażliwą” populację neuronów i wywołuje symptomy i zmiany neuropatologiczne. Przebieg w czasie i natura tych dysfunkcji zależy od nałożenia się procesu chorobowego na normalny proces rozwojowy i dojrzewania, a także od indywidualnej plastyczności i procesów kompensacyjnych w OUN. Schizofrenia spełnia niektóre z tych kryteriów, lecz nie mieści się w wąskiej definicji chorób neurodegeneracyjnych. Nie stwierdzono do tej pory zmian histopatologicznych, immunocytochemicznych pozwalających identyfikować schorzenie. Jednak już w okresie I epizodu większość chorych ma cechy klinicznej deterioracji, po czym u wielu z nich stan stabilizuje się na pewnym poziomie funkcjonowania poznawczego i społecznego, natomiast u części pacjentów nasilenie choroby i dysfunkcje poznawcze stopniowo postępują. Progresja procesu schizofrenicznego znajduje także odbicie w ewolucji objawów w miarę przebiegu choroby, zmianach biochemicznych, anatomicznych w OUN. Obecnie nie można odrzucić hipotezy neurodegeneracyjnej schizofrenii. Może się okazać prawdziwa tylko u części chorych ze specyficznym przebiegiem choroby, a w niektórych przypadkach neurodegeneracja może nakładać się na zaburzenia neurorozwojowe.
Źródło:
Psychiatria i Psychologia Kliniczna; 2005, 5, 3; 117-125
1644-6313
2451-0645
Pojawia się w:
Psychiatria i Psychologia Kliniczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The adaptive market hypothesis and the return predictability in the cryptocurrency markets
Autorzy:
Karasiński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2192168.pdf
Data publikacji:
2023-04-27
Wydawca:
Uniwersytet Ekonomiczny w Poznaniu
Tematy:
cryptocurrency markets
adaptive market hypothesis
efficient market hypothesis
cryptocurrency return predictability
weak-form efficiency of cryptocurrency markets
martingale difference hypothesis
Opis:
This study employs robust martingale diefrence hypothe sis tests to examine return predictability in a broad sample of the 40 most capitalized cryptocurrency markets in the context of the adaptive market hypothesis. The tests were applied to daily returns using the rolling window method in the research period from May 1, 2013 to September 30, 2022. The results of this study suggest that the returns of the majority of the examined cryptocurrencies were unpredictable most of the time. However, a great part of them also suefred some short periods of weak-form ineficien cy. The results obtained validate the adaptive market hy pothesis. Additionally, this study allowed the observation of some diefrences in return predictability between the examined cryptocurrencies. Also some historical trends in weak-form eficiency were identifed. The results suggest that the predictability of cryptocurrency returns might have decreased in recent years also no significant relation ship between market cap and predictability was observed. JEL codes: G14
Źródło:
Economics and Business Review; 2023, 9, 1; 94-118
2392-1641
Pojawia się w:
Economics and Business Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Random walks and market efficiency tests: evidence on US, Chinese and European capital markets within the context of the global Covid-19 pandemic
Autorzy:
Dias, Rui
Teixeira, Nuno
Machova, Veronika
Pardal, Pedro
Horak, Jakub
Vochozka, Marek
Powiązania:
https://bibliotekanauki.pl/articles/19233559.pdf
Data publikacji:
2020
Wydawca:
Instytut Badań Gospodarczych
Tematy:
COVID-19
capital market
random walk hypothesis
efficient market hypothesis
arbitration
portfolio diversification
Opis:
Research background: Covid-19 has affected the global economy and has had an inevitable impact on capital markets. In the week of February 24-28, 2020, stock markets crashed. The index FTSE 100 decreased 13%, while the indices DJIA and S&P 500 fell 11-12%, the biggest drop since the 2007-2008 financial and economic crisis. It is therefore of interest to test the random walk hypothesis in developed capital markets, European and also non-European, in order to understand the different predictabilities between them. Purpose of the article: The aim is to analyze capital market efficiency, in its weak form, through the stock market indices of Belgium (index BEL 20), France (index CAC 40), Germany (index DAX 30), USA (index DOW JONES), Greece (index FTSE Athex 20), Spain (index IBEX 35), Ireland (index ISEQ), Portugal (index PSI 20) and China (index SSE) for the period from December 2019 to May 2020. Methods: Panel unit root tests of Breitung (2000), Levin et al. (2002) and Hadri (2002) were used to assess the time series stationarity. The test of Clemente et al. (1998) is used to detect structural breaks. The tests for the random walk hypothesis follows the variance ratio methodology proposed by Lo and MacKinlay (1988). Findings & Value added: In general, we found mixed confirmation about the EMH (efficient market hypothesis). Taking into account the conclusions of the rank variance test, the random walk hypothesis was rejected in the case of stock indices: Dow Jones, SSE and PSI 20, partially rejected in the case indices: BEL 20, CAC 40, FTSTE Athex 20 and DEX 30, but accepted for indices: IBEX 35 and ISEQ. The results also show that prices do not fully reflect the information available and that changes in prices are not independent and identically distributed. This situation has consequences for investors, since some returns can be expected, creating opportunities for arbitrage and for abnormal returns, contrary to the assumptions of random walk and information efficiency.
Źródło:
Oeconomia Copernicana; 2020, 11, 4; 585-608
2083-1277
Pojawia się w:
Oeconomia Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of lubricating oil improvers on performance of crankshaft seals
Autorzy:
Bzura, P.
Powiązania:
https://bibliotekanauki.pl/articles/260544.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
performance
scientific hypothesis
sealing systems
Opis:
This paper presents an original method for checking influence of lubricating oil improvers on performance of crankshaft seals of combustion piston engine. Crankshaft seals were tested with the use of a modified friction node of T-02 fourball apparatus in laboratory conditions. The tests were conducted according to a worked-out algorithm. Their results confirmed usefulness of the method for determining „harmful” performance of sealing systems, which makes it possible to assess operational usability of lubricating oil improvers. On the basis of an analysis of the results a scientific hypothesis saying that lubricating oil quality affects correctness of performance of crankshaft seals of combustion piston engine, was formulated. The hypothesis was verified by means of induction inference and statistical method with taking into account Fisher statistics.
Źródło:
Polish Maritime Research; 2018, S 1; 172-177
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cięcia budżetowe. Przegląd najnowszych badań
Austerity at the Treasury. A review of the recent literature
Autorzy:
Maziarz, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/569888.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
public debt
economic growth
expansionary fiscal contraction hypothesis
threshold hypothesis
Reinhart-Rogoff affair
austerity
Opis:
The goal is analyzing the most recent cliometric literature on two hypotheses connected to one of the most fiercing problems of the world economy, i.e. historically highest levels of public debt. The author focuses on research published after 2009 aimed at assessing the 90% threshold hypothesis and the expansionary fiscal contraction hypothesis. The opinions among cliometricians are vastly divided. The author concludes that (1) a great dose of scepticism is needed in assessing the recent empirical findings, (2) the 90% threshold hypothesis is not proven, (3) austerity at the Treasure should take place after a recession ends due to possible contractionary influence and (4) it should be based on spending cuts rather than tax increases.
Źródło:
Ekonomia XXI Wieku; 2016, 2 (10); 9-21
2353-8929
Pojawia się w:
Ekonomia XXI Wieku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robustness of two-sample tests to a dependency of observations
Autorzy:
Zieliński, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/747896.pdf
Data publikacji:
1990
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Robustness and adaptive procedures
Hypothesis testing
Opis:
.
In the paper, a numerical analysis of robustness of Student f-test, Wilcoxon-Mann-Whitney test and a sign test to some dependencies of observations is presented. A Monte Carlo approach has been applied.
Źródło:
Mathematica Applicanda; 1990, 18, 32
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coming Home to Paganism: Theory of Religious Conversion or a Theological Principle?
Autorzy:
Anczyk, Adam
Vencálek, Matouš
Powiązania:
https://bibliotekanauki.pl/articles/640954.pdf
Data publikacji:
2013-12-15
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Neo-Paganism
Homecoming Hypothesis
Religious Conversion
Opis:
The so-called “homecoming” is one of the most (if not the most) popular ways of depicting the process of becoming a follower of Neo-Paganism found in literature, from Margot Adler’s classical Drawing Down the Moon (1979) to contemporary authors, like Graham Harvey. It is interesting that “homecoming” simultaneously occurs in Neo-Pagan literature, as the common way of becoming Pagan, seen as opposite to the process of conversion (usually as a rapid change of religious beliefs). The critique of the “homecoming” defined in the academic field concentrates on showing that there is a possibility it may be more a theological notion, rather than a model of religious change to contemporary Paganism. The broad definition of religious conversion, understood as change in religious behaviour and beliefs, does include “homecoming” as one of the possible conversion narratives. Therefore, we may speak of a “coming home experience” as one of the main themes – but certainly not the only one – that is present in the histories of conversion to contemporary Paganism
Źródło:
Studia Religiologica; 2013, 46, 3; 161-171
0137-2432
2084-4077
Pojawia się w:
Studia Religiologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polki w Norwegii – decyzje i plany prokreacyjne
Autorzy:
Łobodzińska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1827713.pdf
Data publikacji:
2016-06-10
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Poles in Norway
childbearing decisions
childbearing intentions
disruption hypothesis
interrelation of events hypothesis
fertility after migration
Opis:
Given the scale and pace of post-EU accession migrations from Poland, as well as age and gender structure of their participants, an increased interest in family behaviour and intentions of this group has been recently noted. The observed interrelations between migration and family building processes are multidimensional. Thus, this study aims to investigate interrelations between migration, childbearing decisions and intentions of Polish female migrants in Norway. The paper is based on a survey research conducted among Polish female migrants in 2014–2015. The results show that majority of immigrants was childless upon arrival. For those, who had a child before migration, the mobility occurred in a relatively early stage of family formation process. However, a concentration of births shortly after migration can be observed. This concerns mostly women migrating to join their husbands or partners. An opposite evidence is observed regarding respondents who had one child upon arrival to Norway – only few of them proceeded to the second birth. Almost 58% of respondents wants to give birth to their next child in Norway. More importantly, majority of women planning a long-term stay in Norway still has positive or uncertain childbearing intentions.
Źródło:
Studia Demograficzne; 2016, 169, 1; 39-63
0039-3134
Pojawia się w:
Studia Demograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thinking and Morality as a Form of Cooperation in the Light of the Conception of Michael Tomasello
Autorzy:
Żuromski, Daniel
Powiązania:
https://bibliotekanauki.pl/articles/1996835.pdf
Data publikacji:
2017-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
the Interdependence Hypothesis
the Shared Intentionality Hypothesis
Michael Tomasello
the natural history of human morality
Opis:
In his work A Natural History of Human Thinking, Michael Tomasello depicts thinking as a form of cooperation. Presenting at the same time a conceptual schema enriched with empirical data, he outlines a natural history of thinking in particular, indicating how the process of socialization and new, unique manifestations of human interaction alter the forms of thinking, from the ones we share with primates, through increasingly complex forms characteristic of the primitive man, to these of the contemporary man. In A Natural History of Human Morality Tomasello presents a similar structure, showing morality as a form of human cooperation in which, according to Tomasello, Homo sapiens, seen as “ultra-social primates”, developed new and uniquely human forms of social interaction and organization which, as a result, required new and also very specific for Homo sapiens psychological mechanisms in cognitive processes, social interaction and self-control. While in A Natural History of Human Thinking Tomasello’s main hypothesis is the Shared Intentionality Hypothesis, in A Natural History of Human Morality it is the Interdependence Hypothesis. Thus, this unique structure of abilities and motivation is the feature which distinguishes us from other primates. This essay aims to extract and outline this structure, focusing more on A Natural History of Human Morality.
Źródło:
Kultura i Edukacja; 2017, 2(116); 69-81
1230-266X
Pojawia się w:
Kultura i Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the hypothesis of developmental origin of health and diseases (DOHaD) in epidemiological studies of women at reproductive age and pregnant women in Poland
Autorzy:
Wojtyla, A.
Powiązania:
https://bibliotekanauki.pl/articles/49297.pdf
Data publikacji:
2011
Wydawca:
Instytut Medycyny Wsi
Tematy:
hypothesis
Developmental Origin of Health and Diseases hypothesis
DOHaD hypothesis zob.Developmental Origin of Health and Diseases hypothesis
epidemiological study
woman
reproductive age
pregnant woman
epigenetics
birth weight
low birth weight
malnutrition
pregnancy
Polska
Źródło:
Annals of Agricultural and Environmental Medicine; 2011, 18, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Information about dynamics of the sea surface as a means to improve safety of the unmanned vessel at sea
Autorzy:
Przyborski, M.
Powiązania:
https://bibliotekanauki.pl/articles/259934.pdf
Data publikacji:
2016
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hypothesis testing
nonlinearity
sea dynamics
USV
Opis:
One of the fundamental states of the sea surface is its heave. Despite of years of the intense scientific inquiry, no clear understanding of the influence of this aspect on the dynamics of the sea environment has emerged. The separation of two nearby fluid elements which one may observed for example as a free floating of small objects on the sea surface (rescuers on the rough sea or small research vessels) is caused by the interaction of different components. On the other hand one may say that the heave of the sea is also a summary interaction of a few components describing the dynamics of the sea. Therefore it is the most important aspect, which influenced the dispersion phenomenon. This observation has important consequences for many different problems as for example conducting Search and Rescue missions and using unmanned ships. We would like to present results of our experiment focused on finding the answer to question about nature of the heave of the sea and its influence on safety of Unmanned Surface Vessels (USV).
Źródło:
Polish Maritime Research; 2016, 4; 3-7
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the properties of some predictor in time series analysis
Właściwości pewnego predyktora w analizie szeregów czasowych
Autorzy:
Czogała, Maria
Powiązania:
https://bibliotekanauki.pl/articles/907045.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
predictor
hypothesis testing
mean square error
Opis:
Cieślak (1993) and Kohler and College (1988) considered a predictor being an arithmetic mean of a set of k-latest observations in time series, where k was constant. In this paper a modified predictor is presented and its properties are discussed. For each t-th observation the hypothesis that there is no change in the level of the time series is tested. When the hypothesis isn’t rejected the predictor is an arithmetic mean of a set of t-latest observations otherwise the predictor is equal to the value o f the last observation in the time series. The mean square error is used for assessing the error of prediction.
W swoich pracach Cieślak (1993) oraz Kohler i College (1988) rozważali predyktor będący średnią arytmetyczną k-ostatnich obserwacji szeregu czasowego, gdzie k jest stale. W pracy przedstawiona jest modyfikacja wspomnianego predyktora oraz omówione są jego własności. Zaproponowany predyktor jest średnią arytmetyczną k-ostatnich obserwacji szeregu czasowego, przy czym k nie jest wielkością stałą. Dla każdej t-kolejnej obserwacji szeregu czasowego weryfikowana jest hipoteza, twierdząca, że w poziomie szeregu czasowego nie nastąpiła zmiana. Gdy hipoteza zerowa nie jest odrzucona predyktor jest wyznaczany jako średnia arytmetyczna z wszystkich t-ostatnich obserwacji, w przypadku przeciwnym predyktor jest równy ostatniej obserwacji tego szeregu czasowego. Do oceny błędów predykcji wykorzystany jest błąd średniokwadratowy.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2008, 216
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On robust tests in some parametric models
Autorzy:
Marzec, Leszek
Marzec, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/747449.pdf
Data publikacji:
1992
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Robustness and adaptive procedures
Hypothesis testing
Opis:
.
For the exponential-scale and Pareto-shape testing problems the unbiased tests based on order statistics are considered. Under the violations defined by hazards and of the contamination type the tests with the most robust (stable) power functions axe explicitly constructed.
Źródło:
Mathematica Applicanda; 1992, 21, 35
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Most powerful robust tests or robust most powerful tests
Autorzy:
Zieliński, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/747455.pdf
Data publikacji:
1995
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Robustness and adaptive procedures
Hypothesis testing
Opis:
.
The most powerful robust test and the robust most powerful test in a simple Gaussian model are constructed and discussed.
Źródło:
Mathematica Applicanda; 1995, 24, 38
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
20 years of the Grammar Matrix: cross-linguistic hypothesis testing of increasingly complex interactions
Autorzy:
Zamaraeva, Olga
Curtis, Chris
Emerson, Guy
Fokkens, Antske
Goodman, Michael Wayne
Howell, Kristen
Trimble, Thomas .J.
Bender, Emily M.
Powiązania:
https://bibliotekanauki.pl/articles/24201227.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:
HPSG
grammar engineering
typology
hypothesis testing
Opis:
The Grammar Matrix project is a meta-grammar engineering framework expressed in Head-driven Phrase Structure Grammar (HPSG) and Minimal Recursion Semantics (MRS). It automates grammar implementation and is thus a tool and a resource for linguistic hypothesis testing at scale. In this paper, we summarize how the Grammar Matrix grew in the last decade and describe how new additions to the system have made it possible to study interactions between analyses, both monolingually and cross-linguistically, at new levels of complexity.
Źródło:
Journal of Language Modelling; 2022, 10, 1; 49--137
2299-856X
2299-8470
Pojawia się w:
Journal of Language Modelling
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Changing Efficiency of the European Stock Markets
Autorzy:
Karasiński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/957597.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
efficient markets hypothesis
evolving efficiency
stock markets
Opis:
The purpose of this article is to examine how the weak-form efficiency of the European stock markets has changed over the years. The study focuses its attention not on answering the question if the markets were efficient but on explaining how efficiency evolved. With a process based on the random walk model proposed by Louis Bachelier in 1900 still commonly applied in this research, market efficiency was examined using three different tests of the normality of the distribution for the returns of 20 selected European stock market indexes. The tests were performed for each year and for additional two-year sub-periods during the 20-year research period (1999–2018). Moreover, the tests were run for one-, two-, three- and four-day returns’ intervals. The study allowed for a partial rejection of the research hypothesis, finding that on a long-term basis the efficiency of European stock markets tends to improve. Indeed, the results indicate that overall efficiency tended to improve but only since the end of the 2008 global financial crisis. From the very beginning of the research period until 2008, overall efficiency was shown to decrease.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2020, 54, 1; 41-51
0459-9586
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A probabilistic concept of load assessmentof self-ignition engines
Autorzy:
Girtler, J.
Powiązania:
https://bibliotekanauki.pl/articles/258922.pdf
Data publikacji:
2008
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
hypothesis
load
self-ignition engine
stochastic process
Opis:
A proposal of probabilistic interpretation of loading process of self-ignition combustion engines, was presented. Probabilistic description of loading the engines was proposed with taking into account known parameters (indices) of their operation. It was demonstrated that instantaneous load of such engines can be considered a random variable. Attention was paid to the fact that the load can be taken as a multi-dimensional random variable. Engine load changes during its operation were considered as the loading process and presented in the form of a multi-dimensional stochastic process whose states are loads considered to be random variables. It was demonstrated that the loading process can be taken as the stochastic one of asymptotically independent incements, stationary and ergodic. Justification of the above mentioned features of the loading process is contained in the presented hypotheses. It was also demonstrated that in testing the load process of self-ignition engines stochastic relation between thermal and mechanical loading should be taken into account.
Źródło:
Polish Maritime Research; 2008, 2; 65-70
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hipoteza – krzywa wiedzy dziecka
Hypothesis of a student’s knowledge curve
Autorzy:
Stępień, Kamil
Stępień, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/1389065.pdf
Data publikacji:
2014-12-31
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Tematy:
hypothesis
curve
knowledge
students
influence
age
exam
Opis:
The authors checked the results of the final primary school exam of 3 million Polish students in the years 2005–2013. This research confirms the influence of the age of entering education on the student’s results and the chance of repeating a school year. This paper presents only a sample of the research, supported by a hypothesis of a student’s knowledge curve.
Źródło:
Problemy Wczesnej Edukacji; 2014, 27, 4; 63-73
1734-1582
2451-2230
Pojawia się w:
Problemy Wczesnej Edukacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Satistical problems of point processes
Autorzy:
Krickeberg, K.
Powiązania:
https://bibliotekanauki.pl/articles/748503.pdf
Data publikacji:
1978
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Non-Markovian processes: hypothesis testing, Filtering, Prediction
Opis:
Wykłady niniejsze wygłoszone były we wrześniu 1976 r. w Międzynarodowym Centrum Matematycznym im. Stefana Banacha w Warszawie, w ramach Semestru ze Statystyki Matematycznej.
This is a set of lectures delivered at the International Mathematical Centre, Warsaw, in 1976. The text contains three sections. Section 1 is devoted to basic notions. In the second section inference from a family of Poisson processes is considered. The last section deals with the problems of filtering of Cox processes (doubly stochastic processes).
Źródło:
Mathematica Applicanda; 1978, 6, 13
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prime numbers with a certain extremal type property
Autorzy:
Tutaj, Edward
Powiązania:
https://bibliotekanauki.pl/articles/744669.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
prime numbers
prime counting function
Riemann hypothesis
Źródło:
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica; 2018, 17
2300-133X
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hipoteza artyfikacji i jej znaczenie dla kognitywizmu, neuroestetyki i estetyki ewolucyjnej
Autorzy:
Dissanayake, Ellen
Powiązania:
https://bibliotekanauki.pl/articles/645153.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
artification hypothesis
art
neuroaesthetics
evolutionary aesthetics
cognitivism
Opis:
The artification hypothesis presented in this paper is based on the assumption that small children have the ability not ju st to persuade other to give them physical safety but also to initiate social bonds and emotional interaction. Thus the interactions between the child and mother are adaptive in their character and as such they were not considered by evolutionary psychologists. The other factor of artification is the ritualization of those interactions. The article delivers many examples of proto aesthetic actions and artifications stressing out also the religious aspect of the phenomenon. The author concludes with the notion that artification and aesthetic agency are adaptive as such and they were just as important in the human evolution as nonverbal information transmission.
Źródło:
Kultura-Społeczeństwo-Edukacja; 2015, 8, 2; 183-210
2300-0422
Pojawia się w:
Kultura-Społeczeństwo-Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problem umiejscowienia prionów w obszarze pogranicza życia
The Problem of Prions Location in the Area of Borderland of Life
Autorzy:
Łapiński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2015757.pdf
Data publikacji:
2003
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
białko ScPrP
prion [PSI]
[URE]
prion [het-s]
replikacja prionów
białko CtmPrP
szczep scrapie
hipoteza kryształu
hipoteza wirino
hipoteza polimeryzacji
hipoteza heterodimeru
protein PrPSc
prion's replication
protein PrPCtm
scrapie forms
crystal hypothesis
virino hypothesis
polymerisation hypothesis
heterodimer hypothesis
Opis:
The status of prions' attachment to the biotic or abiotic sphere is not established. In consideration of structure prions are infections proteins – in case of animals and human being – constructs from the specifically protein calls PrPc, which PrPSc form is a prion. The prions were indicating also at fungi ([PSI] and [URE]) and yeast ([het-s]). There are big probability occurrences of prions at some another organisms, too. According to cybernetic approach to the life organism, prions positively fulfil conditions: semi-opennesness (half-openness), complexity, hierarchicalness and structure. There are formulates some of doubts about possibility of fulfils by prion conditions of program and cybernetic system. In addition the phenomenon of self-multiplication of prion has not unequivocally estimation. In the formulation of Tibor Gánti's life system, prion positively realises some requirements: coherent whole, coherent stability, control, and mortality. In my opinion prions negative fulfils condition: metabolism and phenomenon of adjustment. We also not observe at prions: system, which takes information, phenomenon of growth, reproduction, and heredity of changes and evolution. Final inference: it is a lack today some of precise conclusions about biotic or abiotic nature of prions.
Źródło:
Roczniki Filozoficzne; 2003, 51, 3; 303-323
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rynki finansowe w warunkach ograniczonej racjonalności
Financial markets in the conditionsof bounded rationality
Autorzy:
Ambroziak, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/569972.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
financial markets
bounded rationality
efficient market hypothesis
Opis:
In this paper an attempt was made to clarify the reasons of price movements on financial markets in the conditions of decision-makers bounded rationality. The emphasis of rationality of individuals, which is limited by information they have and the cognitive limitations of their minds, allowed to discuss the hypothesis of efficient markets and an assumption of their rational expectations. As a results of these considerations a model of financial markets was formulated in which an investor could choose different investment strategies and decide to change originally chosen ones as a consequence of their bounded rationality.
Źródło:
Ekonomia XXI Wieku; 2014, 3(3); 76-93
2353-8929
Pojawia się w:
Ekonomia XXI Wieku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Weakly nonlinear regression model with constraints I: nonlinear hypothesis
Autorzy:
Kubácek, Lubomír
Tesaríková, Eva
Powiązania:
https://bibliotekanauki.pl/articles/729706.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
regression model with constraints
nonlinear hypothesis
linearization
Opis:
The problem considered is under which conditions in weakly nonlinear regression model with constraints I a weakly nonlinear hypothesis can be tested by linear methods. The aim of the paper is to find a region around the approximate value of the regression parameter with the following property. If we are certain that the actual value of the regression parameter is in this region, then the linear method of testing can be used without any significant deterioration of the inference.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2005, 25, 1; 115-133
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola aksjomatu w matematyce współczesnej oraz w perspektywie dociekań nad aksjomatem wyboru
The role of axioms in contemporary mathematics in the view of investigations on axiom of choice
Autorzy:
Lewandowska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/691223.pdf
Data publikacji:
2011
Wydawca:
Copernicus Center Press
Tematy:
axiomatization
axioms
axiom of choice
continuum hypothesis
Opis:
We show how philosophy effected the shape of mathematics when the proof of Well-Ordering Principle was formulated by Ernst Zermelo. We also consider the significance of philosophy of mathematics today. We concentrate on Solomon Feferman and Penelope Maddy attitude in the recent debate on the need of new axioms in mathematics.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2011, 48; 148-165
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czy niskie dawki promieniowania jonizującego są szkodliwe?
Can low level ionizing radiation do us harm?
Autorzy:
Janiak, Marek Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2086923.pdf
Data publikacji:
2022
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
promieniowanie jonizujące
hipoteza liniowa bezprogowa
hipoteza LNT
hormeza radiacyjna
ionizing radiation
linear no-threshold hypothesis
LNT hypothesis
radiation hormesis
Opis:
Wiele już opublikowanych i nowo pojawiające się wyniki badań wyraźnie wskazują na korzystne, prozdrowotne działanie niskich dawek promieniowania jonizującego (p.j.). Dane te przeczą dominującej opinii, że każda ekspozycja na p.j., nawet w najmniejszej dawce, może wywołać nowotwór i powinna być unikana. Co gorsza, opinia ta, w postaci tzw. hipotezy LNT (linear, no threshold), stanowi podstawę regulacji obowiązujących w ochronie radiologicznej. W niniejszym artykule, po krótkim przedstawieniu genezy modelu LNT, przedstawiono przekonujące wyniki analiz epidemiologicznych i badań doświadczalnych oraz leczenia nowotworów u ludzi, które wyraźnie świadczą o braku podstaw naukowych dla tego modelu. Podano także przy kłady brzemiennych w skutki konsekwencji stosowania hipotezy LNT w praktyce. Konkluzją jest postulat, aby porzucić fałszywą i szkodliwą „ideologię” LNT, która „więzi nas w czasie przeszłym”, utrwala radiofobię i stanowi przeszkodę w powszechnym stosowaniu nieszkodliwych, a często korzystnych dla zdrowia ekspozycji w niskich dawkach p.j.
The linear no-threshold (LNT) hypothesis of cancer risk assessment resulting from exposure to ionizing radiation (IR) constitutes the basis of our radiological protection philosophy and regulations. This hypothesis assumes that each absorbed dose of IR, no matter how small, is potentially carcinogenic and that the effects of low doses (not exceeding 100 mGy and 0.1 mGy/min for acute and chronic exposures, respectively) can be extrapolated from those of high doses of IR. However, evidence accumulated over many years clearly indicates that absorption of low radiation doses does not cause harm and often promotes health. In this review I provide examples of the results of both epidemiological analyses and controlled experimental studies which indicate that there is a qualitative difference between the effects of low vs. high doses of IR and that the LNT tenet lacks scientific justification. I also outline the genesis and reasons for its persistence as well as numerous negative consequences of using the latter and conclude it’s high time to replace the LNT dogma with a scientifically-based relationship such as a hormetic or a threshold dose-response model.
Źródło:
Postępy Techniki Jądrowej; 2022, 2; 11--21
0551-6846
Pojawia się w:
Postępy Techniki Jądrowej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie wpływu niesymetrycznych dwu-blokowych obciążeń na kumulację uszkodzeń zmęczeniowych w stali EN295
Analysis of non-symmetrical two block loading influence on cumulative fatigue damage in steel EN295
Autorzy:
Gołoś, K.
Gołoś, A.
Powiązania:
https://bibliotekanauki.pl/articles/252091.pdf
Data publikacji:
2015
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
uszkodzenie zmęczeniowe
hipoteza Palmgrena-Minera
hipoteza Gołosia-Ellyina
obciążenie
Palmgren-Miner hypothesis
Golos and Ellyin hypothesis
fatigue damage
Opis:
W artykule przedstawiono wyniki badań doświadczalnych kumulacji uszkodzeń zmęczeniowych przy cyklicznych dwu-blokowych sekwencjach obciążenia dla cykli symetrycznych i z dodatnim odkształceniem średnim cyklu dla stali En 295. Do analizy danych doświadczalnych oprócz liniowej hipotezy Palmgrena-Minera została wykorzystana również hipoteza Gołosia-Ellyina. Porównanie wyników doświadczalnych i analitycznych wykazało dość dobrą zgodność.
The results of experimental studies of fatigue damage accumulation at the cyclic two-block sequence loading for steel En295 have been presented Studies have shown load sequence effect on fatigue damage accumulation process for the test steel. In the descending load values in a block (H-L) summed linearly measure of accumulation was in the range of 0, 65 to 0.94. If the reverse order of blocks (L-H) linearly summed measure of the accumulation ranged from 1.02 to 1.25. Positive mean strain generally decreases the fatigue life. For the analysis of experimental data in addition to the linear hypothesis Palmgren-Miner has been used a hypothesis put forward by Golos and Ellyin. Predictions based on the analyzed hypothesis for the analyzed test load sequence for symmetrical and with mean strain cycles for steel specimen En295 compared with the data obtained showed good agreement.
Źródło:
TTS Technika Transportu Szynowego; 2015, 12; 568-571, CD
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sztuka epoki paleolitu w świetle hipotezy mózgu społecznego
Art of the paleolithic era in the light of the social brain hypothesis
Autorzy:
Wagner, Patrycja
Powiązania:
https://bibliotekanauki.pl/articles/27313426.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
portable art,
Paleolithic,
rock art
social brain hypothesis
Opis:
The purpose of this article is to try to look at the phenomenon of Paleolithic cave art differently – through the prism of the assumptions of the social brain hypothesis. This paper will present the main assumptions of Robin Dunbar’s social brain concept, which assumes that the increase in the size of the social group influenced the development of the individual (both biologically and socio-culturally). Larger communities provided the impetus for the development of new cognitive qualities, which provided the opportunity for art to emerge.
Źródło:
Folia Praehistorica Posnaniensia; 2023, 28; 315-331
0239-8524
2450-5846
Pojawia się w:
Folia Praehistorica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acquisition of Structures at Syntax-Discourse Interface: Post-Verbal Subjects in L2 English
Autorzy:
Mitkovska, Liljana
Bužarovska, Eleni
Stojanovska-Ilievska, Natasha
Powiązania:
https://bibliotekanauki.pl/articles/22446725.pdf
Data publikacji:
2023
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
subject inversion
information structure
word order
interface hypothesis
Opis:
The present study explores the acceptability of postverbal subjects by intermediate and advanced L2 English learners with L1 Macedonian, a pro-drop Slavic language with rich verbal morphology. The two languages differ regarding the distribution of subject-verb inversion (SVI): in Macedonian, it is a default pattern in thetic sentences, but English severely restricts SVI to specific contexts. To test the hypothesis that Macedonian learners encounter difficulties in acquisition of English SVI because of crosslinguistic influence, a grammaticality judgement and correction task was administered to two groups of Macedonian learners of English and a control group of English native speakers. The results revealed that L2 learners find English VS sentences and VS + it-insertion examples more acceptable than the native speakers, but the performance of the advanced group is closer to the native speakers than to the intermediate learners. Both non-native groups accept more readily inappropriate English sentences that conform to typical L1 structures.
Źródło:
Theory and Practice of Second Language Acquisition; 2023, 9, 2; 1-22
2450-5455
2451-2125
Pojawia się w:
Theory and Practice of Second Language Acquisition
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The ribosome filter hypothesis and specialized ribosomes
Autorzy:
Filipek, Kamil
Deryło, Kamil
Michalec-Wawiórka, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/1178213.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
filter hypothesis
rRNA
ribosomal proteins
ribosome
specialized ribosomes
Opis:
The ribosome is a macromolecular complex of proteins and RNA, which plays a key role in every living organism, being a heart of the process of translation. Recent findings have shown that it can be also regarded as a regulatory element that adjusts cellular proteome to highly variable environmental conditions. The ribosome is believed to possess the ability to “filter” populations of mRNAs for choosing their appropriate set to meet current demands of the cell. The filter mechanism is based on a specific interaction between mRNA and rRNA or mRNA and ribosomal proteins. The ribosome “filtering activity” is reflected by the ribosomal particles heterogeneity, which originates mainly from variations or modifications within particular components of translational apparatus. Alternations of ribosomal proteins or/and rRNA generate a specific class of ribosomes called specialized ribosomes, which having unique composition can display selectivity toward particular mRNAs representing an additional step of gene expression regulation at the translational level. This work describes a basis of ribosome filter hypothesis illustrated by interesting examples from different domains of life.
Źródło:
World Scientific News; 2018, 93; 19-29
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of the change-point of a distribution in a sequence of random variables
Autorzy:
Schulze, U.
Powiązania:
https://bibliotekanauki.pl/articles/748634.pdf
Data publikacji:
1986
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Research exposition
Bayesian problems
Hypothesis testing
Point estimation
Opis:
Artykuł nie zawiera streszczenia
The article contains no abstract
Źródło:
Mathematica Applicanda; 1986, 14, 28
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal innovation in press advertisements
Autorzy:
Wojtaszek, Adam
Powiązania:
https://bibliotekanauki.pl/articles/577113.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
advertising slogans
appreciation
intelligibility
Optimal Innovation Hypothesis
salience
Opis:
The discourse of advertising offers an environment conducive to the exploitation of novelty in language. Novelty can be conceptualised as an opposite of salience (Giora, 2003), being also a graded feature. Giora claims that there exists a specific level of novelty, which evokes pleasurable experience in recipients. She proposes Optimal Innovation Hypothesis, which may be implied in the investigation of various types of discourse marked with high originality. The paper reports on two studies. The initial one, described in Wojtaszek (2011), focused on the appreciation of three alternative versions of Polish and British advertising slogans, while the subsequent one is the attempt to find a relationship between the previous findings and the degree of legibility of the investigated texts. In the appreciation task the plain formulations received the lowest scores, followed by the highly innovative slogans, with the optimally innovative formulations ranking highest. In the task where evaluation of clarity was performed, the plain formulations turned out to be the easiest, the optimally innovative slogans were a bit more difficult, and the highly innovative ones the least conspicuous. A number of interesting dependencies were also found, suggesting further developments for the future.
Źródło:
Linguistica Silesiana; 2011, 32; 121-132
0208-4228
Pojawia się w:
Linguistica Silesiana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Cointegrated VAR Model with Deterministic Structural Breaks
Autorzy:
Gosińska, Emilia
Welfe, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/2119887.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
structural breaks
cointegrated VAR
WALD test
hypothesis testing
Opis:
The presence of a binary variable in the cointegrated VAR (CVAR) model is most often interpreted as the structural break affecting the data generating process. It is proved in the paper that to enjoy this interpretation the binary variable must appear simultaneously inside and outside the cointegration space. In order to test for the break we advocate to employ the Wald statistic, however, its critical values and the power had to be simulated separately for the possible change of the constant, the trend, and both. The experiments were designed for different sizes of the cointegrating space, number of variables, the span of the break, normally and t-distributed errors. It is shown that the power of the test depends mostly on the magnitude of the break and the sample size while other factors are of secondary importance. In order to test for the break at unknown period the supWald statistic was proposed.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2022, 3; 335-350
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transformacje morfosyntaktyczne w badaniach eksperymentalnych, czyli lingwistyka między matematyką a psychologią
Morpho-syntactic transformations in experimental studies. Linguistics between mathematics and psychology
Autorzy:
Nowak, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2109508.pdf
Data publikacji:
2017-12-30
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
hypothesis linguistic
psychological reality
epistemological control
laboratory experiment
Opis:
The article is reconnaissance. The author seeks to answer the question: is transformations are psychologically real? The content of the paper focuses on issues relating to the hypothesis of grammar: transformational grammar and theme-rheme grammar. In close relationship with the analyzed problem author make some experiments. On this basis, the author draws own conclusions.
Źródło:
Białostockie Archiwum Językowe; 2017, 17; 163-180
1641-6961
Pojawia się w:
Białostockie Archiwum Językowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On Some Simulation Procedures for Comparing Nonparametric Methods of Regression
Wybrane symulacyjne procedury porównywania nieparametrycznych metod regresji
Autorzy:
Trzęsiok, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/904487.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
nonparametric regression
model comparison
benchmarking experiments
hypothesis testing
Opis:
Nonparametric methods of regression form a large group of varied and rapidly growing methods. In many situations we have a problem with comparing these methods in order to select one of them to solve the regression problem. We present the simulation procedure for comparing the performance of several competing algorithms of nonparametric regression. This procedure has two stages. In the first one, the ranking of nonparametric models of regression is created. In the second stage, statistical test procedures can be used to test the significance of differences in the performances of models presented in the ranking. The procedure is applied to regression benchmark studies based on real world data.
W artykule przedstawiono symulacyjną procedurę badawczą pozwalającą na porównywanie różnych nieparametrycznych modeli regresji, jak i wybór najlepszego z nich. Zaproponowana procedura przebiega dwuetapowo. W pierwszym etapie tworzony jest ranking modeli regresji, pod względem dokładności predykcji, mierzonej za pomocą błędu średniokwadratowego obliczonego metodą sprawdzania krzyżowego ( MSECV ). Drugi etap analizy ma na celu zbadanie istotności różnic pomiędzy uzyskanymi wartościami MSECV , a tym samym skorygowanie otrzymanych rankingów. Do testowania istotności wspomnianych różnic wykorzystano nieparametryczną statystykę testującą zaproponowaną przez Hothorna. Opisaną procedurę badawczą zastosowano w badaniu empirycznym, dla zbiorów danych standardowo wykorzystywanych do analizowania własności różnych metod regresji.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2013, 286
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czego chciałbym nauczyć studentów studiów społecznych
What I Would Like to Teach to Students of Social Sciences
Autorzy:
Hajduk, Edward
Powiązania:
https://bibliotekanauki.pl/articles/423856.pdf
Data publikacji:
2012
Wydawca:
Lubuskie Towarzystwo Naukowe
Tematy:
Social Research Methodology
Hypothesis
Main and detailed Problems
Opis:
The article discusses the consequences of the division of problems into: a/ main and b/ detailed, and the division of hypotheses into: c/ general and d/ detailed. It also shows the consequences of the assumption about the equivalence of conditions listed in detailed hypotheses in order to maintain or reject the general hypothesis. Moreover, the paper indicates the consequences of a subjective attitude towards the hypothesis revealed by its author. The attitude is expressed by such words as „I assume that...”. The paper also deals with several versions of identifying various orders: a/ physical, b/ logical, c/ syntactical and d/ semantic. It additionally discusses the consequences of some methodological declarations.
W artykule omówione zostały konsekwencje podziału problemów na: a) główne, b) szczegółowe oraz podziału hipotez na: c) ogólne i d) szczegółowe. Wskazane są też konsekwencje założenia o równoważności uwarunkowań wymienionych w hipotezach szczegółowych dla zachowania albo odrzucenia hipotezy ogólnej. Innym wątkiem artykułu jest wskazanie konsekwencji ujawnionego przez autora hipotezy subiektywnego nastawienia do niej wyrażone za pomocą np. takiego sformułowania: „przypuszczam że…” W artykule omówionych zostało też kilka wersji utożsamiania różnych porządków: a) fizycznego i b) logicznego oraz c) syntaktycznego i d) semantycznego a także konsekwencji niektórych deklaracji metodologicznych.
Źródło:
Rocznik Lubuski; 2012, 38, 2; 171-189
0485-3083
Pojawia się w:
Rocznik Lubuski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Montesquieu hypothesis and football: players from hot countries are more expressive after scoring a goal
Autorzy:
Sorokowski, P.
Sorokowska, A.
Onyishi, I. E.
Szarota, P.
Powiązania:
https://bibliotekanauki.pl/articles/430410.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
emotional expression
football
Montesquieu hypothesis
temperature
cross-cultural differences
Opis:
Analysis of sportsmen behavior enabled the authors to conduct simultaneous analysis of emotional expression of people from many distinct countries and cultures. In the study, participants from Nigeria and Poland watched all the goals scored in group matches of the 1998, 2002 and 2006 World Cups and assessed the emotions players expressed after scoring each goal on three scales (happiness, anger, and excitement). Based on the assessment of the participants, emotional expression of football players from 51 countries was analyzed. Basing on “Montesquieu hypothesis”, it was shown that players born in warmer climates (controlling for HDI of their country) express more excitement and happiness after scoring a goal. Further cross-cultural differences were also found. The results are discussed in context of previous cross-cultural studies regarding emotional expression.
Źródło:
Polish Psychological Bulletin; 2013, 44, 4; 421-430
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Age on Polish Households Financial Behavior – Indebtedness and Over-Indebtedness
Autorzy:
Anioła-Mikołajczak, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/429324.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
household indebtedness
household over-indebtedness
age
life-cycle hypothesis
Opis:
The aim of this paper is to examine how age of the head of household affects the financial behavior of households in terms of indebtedness and over-indebtedness. The over-indebtedness was analyzed from two aspects – margin and debt service ratio indicators. The data from Household Budget Survey in 2011 conducted by Central Statistical Office of Poland was used in the analyses. To achieve the main objective, selected measures of descriptive statistics and contingency tables were used. The research results confirm that in Poland credits were taken mainly by households of young people, which is consistent with assumptions of the life cycle hypothesis. Although these assumptions were not confirmed in the case of a problem with over-indebtedness.
Źródło:
Optimum. Economic Studies; 2017, 1(85)
1506-7637
Pojawia się w:
Optimum. Economic Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating the Baumol-Bowen and Balassa-Samuelson Effects in the Polish Economy - a Disaggregated Approach
Autorzy:
Konopczak, Karolina
Torój, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/483365.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Balassa-Samuelson hypothesis
monetary integration
real appreciation
panel cointegration
Opis:
This paper estimates the magnitude of the Baumol-Bowen and Balassa-Samuleson effects in the Polish economy. The purpose of the analysis is to establish to what extent the differential price dynamics in Poland and in the euro area and the real appreciation of PLN against EUR are explained by the differential in respective productivity dynamics. The historical contribution of the Baumol-Bowen effect to Polish inflation rate is estimated at 0:9 - 1:0 percentage points in the short run. According to estimation results, the Balassa-Samuelson effect contributed around 0:9 to 1:0 percentage point per annum to the rate of relative price growth between Poland and the euro area and 1:0 to 1:2 p.p. to real exchange rate appreciation. The long-run effects are of an approximately twice larger magnitude. Sub-sample calculations and productivity trends over the last decade suggest that this impact should be declining. However, its size is still non-negligible for policymakers in the context of euro adoption in Poland.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2010, 2, 2; 117-150
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
To the Abyss and Beyond
Autorzy:
Rusek, Antonin
Powiązania:
https://bibliotekanauki.pl/articles/659703.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Life Cycle Hypothesis
GDP growth
VAR models
conditional forecasts
Opis:
Abstract. Life cycle hypothesis and Solow neo-classical growth concepts are used to construct and estimate VAR models of USA’s GDP dynamics. Conditional forecasts are then made for those two variables for the next two years, using different assumptions regarding the future dynamics of the household’s net worth. Results show that under all assumptions the US GDP growth GDP remains sluggish. The historical peak GDP level (achieved in Q2 from 2008) is not achieved by the Ql of 2011.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2010, 241
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Copernican Hypotheses Part 2
Autorzy:
Dersley, Stephen
Powiązania:
https://bibliotekanauki.pl/articles/699340.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
N. Copernicus hypothesis
T. S. Kuhn
philosophy of science
Opis:
The Copernicus constructed by Thomas S. Kuhn in The Copernican Revolution (1957) is a decidedly non-revolutionary astronomer who unwittingly ignited a conceptual revolution in the European worldview. Kuhn’s reading of Copernicus was crucial for his model of science as a deeply conservative discourse, which presented in The Structure of Scientific Revolutions (1962). This essay argues that Kuhn’s construction of Copernicus and depends on the suppression of the most radical aspects of Copernicus’ thinking, such as the assumptions of the Commentariolus (1509-14) and the conception of hypothesis of De Revolutionibus (1543). After comparing hypothetical thinking in the writings of Aristotle and Ptolemy, it is suggested that Copernicus’ conceptual breakthrough was enabled by his rigorous use of hypothetical thinking.
Źródło:
Journal of Applied Cultural Studies; 2015, 1
2392-0661
Pojawia się w:
Journal of Applied Cultural Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Copernican Hypotheses Part 1
Autorzy:
Dersley, Stephen
Powiązania:
https://bibliotekanauki.pl/articles/699342.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
N. Copernicus hypothesis
T. S. Kuhn
philosophy of science
Opis:
The Copernicus constructed by Thomas S. Kuhn in The Copernican Revolution (1957) is a decidedly non-revolutionary astronomer who unwittingly ignited a conceptual revolution in the European worldview. Kuhn’s reading of Copernicus was crucial for his model of science as a deeply conservative discourse, which presented in The Structure of Scientific Revolutions (1962). This essay argues that Kuhn’s construction of Copernicus and depends on the suppression of the most radical aspects of Copernicus’ thinking, such as the assumptions of the Commentariolus (1509-14) and the conception of hypothesis of De Revolutionibus (1543). After comparing hypothetical thinking in the writings of Aristotle and Ptolemy, it is suggested that Copernicus’ conceptual breakthrough was enabled by his rigorous use of hypothetical thinking.
Źródło:
Journal of Applied Cultural Studies; 2015, 1
2392-0661
Pojawia się w:
Journal of Applied Cultural Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of antagonistic wire-driven joint employing kinematic transmission mechanism
Autorzy:
Sonoda, T.
Nishida, Y.
Nassiraei, A. A. F.
Ishii, K.
Powiązania:
https://bibliotekanauki.pl/articles/384211.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
antagonistic-driven joints
equilibrium point hypothesis
controllable stiffness mechanisms
Opis:
Antagonistic mechanisms attract attentions as joint actuators of linkage mechanisms, which control output torque, joint stiffness and position simultaneously. As the actuators or components of antagonistic driven joints, special devices with nonlinear elasticity property such as pneumatic actuators, nonlinear springs are often utilized to satisfy the requirements of antagonistic mechanisms. However, these devices have difficulties in control caused by complex and nonlinear properties, downsizing of actuator, and response time of articular compliance. In order to solve these problems, we propose a new antagonistic joint mechanism using kinematic transmission mechanism (KTM), which is composed of links and cams with dedicated design. The performance of KTM is evaluated through stiffness and position control simulations and experiments.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 2; 62-70
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new Kantorovich-type theorem for Newtons method
Autorzy:
Argyros, Ioannis
Powiązania:
https://bibliotekanauki.pl/articles/1338842.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Newton's method
Lipschitz-Hölder condition
Kantorovich hypothesis
Banach space
Opis:
A new Kantorovich-type convergence theorem for Newton's method is established for approximating a locally unique solution of an equation F(x)=0 defined on a Banach space. It is assumed that the operator F is twice Fréchet differentiable, and that F', F'' satisfy Lipschitz conditions. Our convergence condition differs from earlier ones and therefore it has theoretical and practical value.
Źródło:
Applicationes Mathematicae; 1999, 26, 2; 151-157
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How Relevant Is the Sapir-Whorf Hypothesis to Contemporary Psycholinguistic Research?
Autorzy:
Latkowska, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/783209.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
linguistic relativity
Sapir-Whorf Hypothesis
cognition
language
correlational study
Opis:
The paper raises the question of whether the linguistic relativity proposal, also known as the Sapir-Whorf Hypothesis, should be used as a frame of reference for modern research into the relationship of language to cognition. The question is discussed in the context of Whorf’s (1956) writings, with emphasis on factors that are crucial to the proposal, i.e. language, thought, and behavior.The second issue addressed by the paper is whether linguistic categories provide an accurate window on cognition, as was suggested by Whorf and in some of the more recent debates. The analysis takes the form of a correlational study which examines the categorization criteria applied in tests that require language-based and language-neutral judgments.
Źródło:
Theory and Practice of Second Language Acquisition; 2015, 1, 1
2450-5455
2451-2125
Pojawia się w:
Theory and Practice of Second Language Acquisition
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-50 z 242

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies