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    Wyświetlanie 1-9 z 9
    Tytuł:
    Microeconomic Foundation for Phillips Curve with a Three-Period Overlapping Generations Model and Negative Real Balance Effect
    Autorzy:
    Tanaka, Yasuhito
    Powiązania:
    https://bibliotekanauki.pl/articles/1964883.pdf
    Data publikacji:
    2021-07-26
    Wydawca:
    Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
    Tematy:
    microeconomic foundation
    monopolistic competition
    negative real balance effect
    Phillips curve
    a three-period overlapping generations model
    Opis:
    We show a negative relation between the inflation rate and the unemployment rate, that is, the Phillips curve using a three-period overlapping generations (OLG) model with childhood period and pay-as-you-go pension for older generation under monopolistic competition with negative real balance effect. In a three-period OLG model, there may exist a negative real balance effect because consumers have debts and savings. A fall (or rise) in the nominal wage rate induces a fall (or rise) in the price, then by negative real balance effect, the unemployment rate rises (or falls), and we get a negative relation between the inflation rate and the unemployment rate. This conclusion is based on the premise of utility maximisation of consumers and profit maximisation of firms. Therefore, we present a microeconomic foundation for the Phillips curve. We also examine the effects of fiscal policy financed by seigniorage, which is represented by left-ward shift of the Phillips curve.
    Źródło:
    Central European Economic Journal; 2021, 8, 55; 163-175
    2543-6821
    Pojawia się w:
    Central European Economic Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Financing environmental protection investments in Poland with particular regard to budgetary expenditure of rural communes
    Autorzy:
    Hyski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/59748.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    environmental investment
    rural commune
    budgetary expenditure
    real effect
    investment
    environment protection
    financing investment
    Polska
    fund source
    expenditure structure
    spatial structure
    commune budget
    budget
    rural area
    Opis:
    The article aims at identification and assessment of the extent to which rural communes in Poland participate in financing environmental protection investments. Investments in the natural environment protection are the subject of the paper. The analysis addresses particularly the issue of their financing, especially funding from budgetary means of rural communes with regard to territorial division into provinces. Secondary sources of information for the years 2004-2009 were used in the investigations. Among the sources of funding for environmental protection investments, the most important are own means covering almost half of the outlays on fixed assets for the natural environmental protection. Expenses from communes' budgets are of marginal importance for the structure of environmental protection funding. Communes' investment expenditure focuses almost exclusively on wastewater management, water protection and waste management. Rural communes financed 20.3% of the total environmental investment outlays realized by all communes. Environmental protection (together with public utilities) are on the second position among the investment objectives of rural communes. The largest scale of investment expenditure on the environmental protection in 2009 was registered in the Podkarpackie province, where rural communes financed about 20% of investment outlays in this field made by all rural communes in Poland total.Tangible effects of the realized environmental investments financed from rural communes' budgets in 2009 in Poland are diversified spatially. Considering investments in wastewater management, three provinces (Podkarpackie, Małopolskie and Mazowieckie) realized investments such as collective sewer system constituting almost half of the total length of such investments realized in 2009 in rural areas. Similar situation was observed for the length of house sewers and collective wastewater treatment plants. It was the same also in case of individual wastewater treatment plants of which half of the whole number commissioned for use in Poland was located in the areas of four provinces: Kujawsko-Pomorskie, Lubelskie, Mazowieckie and Wielkopolskie.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2011, 12
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Scheduling problems with learning and ageing effects: a survey
    Autorzy:
    Janiak, A.
    Krysiak, T.
    Trela, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/375892.pdf
    Data publikacji:
    2011
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    scheduling
    learning effect
    ageing effect
    real-life applications
    Opis:
    In recent years, many papers concerning scheduling problems with simultaneous learning and ageing effects were published. In this paper, the state of the art of research concerning these problems is presented. In order to facilitate understanding this subject, the scheduling problems where these effects occur separately, are firstly explained. Then, the papers devoted to scheduling problems combining the effects of learning and ageing are discussed. Particular attention was paid on practical applications of the considered scheduling problems. After thorough analysis it turned out that both scheduling problems with learning effect, and with ageing effect, as well as, in particular, the problems with models merging learning and ageing effects do not have any reasonable real-life applications. This is because the learning and ageing effects are in general long time horizon phenomena observed in repetitive systems and scheduling theory concerns either with repetitive short-horizon planning problems or single long-horizon projects. Therefore, there is no sense to continue research considering these scheduling problems from practical (computer engineering, automatic control, technical and economical) point of view, unless such reasonable real-life example appears.
    Źródło:
    Decision Making in Manufacturing and Services; 2011, 5, 1-2; 19-36
    1896-8325
    2300-7087
    Pojawia się w:
    Decision Making in Manufacturing and Services
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of Unemployment on Socio-Economic Development of Poland and Ukraine: Governance Aspects
    Autorzy:
    Biloshkurska, Nataliia
    Biloshkurskyi, Mykola
    Popadynets, Nazariy
    Plets, Ivan
    Karpyak, Mariya
    Powiązania:
    https://bibliotekanauki.pl/articles/21375331.pdf
    Data publikacji:
    2023-06-30
    Wydawca:
    Politechnika Częstochowska
    Tematy:
    development
    Okun effect
    Okun’s law
    real GDP
    unemployment
    Opis:
    The significance of this study lies in proving the validity of the Okun effect by indicators of socio-economic development in Poland, Ukraine, the EU, and the world, which are: economic growth leads to a decrease in unemployment, while economic recession leads to an increase in unemployment; an increase in unemployment is accompanied by an economic recession, while a decrease in unemployment is accompanied by economic growth. The article is exploratory and based on comparative analysis, regression analysis, ANOVA, the graphical method, logical generalization, synthesis, induction, and deduction. It substantiates the expediency of comparative evaluation of the impact of unemployment on the socio-economic development of neighbouring countries: the Republic of Poland (a member of the European Union) and Ukraine (a candidate for the European Union) supplemented with a comparison of the average European and average world data. It shows that the sensitivity of real GDP to changes in the unemployment rate, as well as the sensitivity of the unemployment rate to changes in real GDP in Poland, is the lowest. In contrast, Ukraine has the highest relative to the EU and global averages. It was established that state anti-crisis management in the social sphere should be focused both on financial support for employers and employees and on the creation of new vacancies in the implementation of infrastructure
    Źródło:
    Zeszyty Naukowe Politechniki Częstochowskiej. Zarządzanie; 2023, 1, 50; 31-45
    2083-1560
    Pojawia się w:
    Zeszyty Naukowe Politechniki Częstochowskiej. Zarządzanie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The lagged effect of air pollution on human eosinophils: a distributed lag non-linear model
    Autorzy:
    Ding, Zhaojun
    Xie, Zhen
    Su, Yang
    Qi, Jiying
    Cui, Bin
    Powiązania:
    https://bibliotekanauki.pl/articles/2116610.pdf
    Data publikacji:
    2020-04-30
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    air pollution
    gender difference
    eosinophils
    real-world data
    lagged effect
    distributed lag non-linear model
    Opis:
    ObjectivesThe aim of this study was to determine the lag between exposure to air pollutants and changes in human eosinophil counts.Material and MethodsThis was a retrospective study employing 246 425 physical examination records dated December 2013 – December 2016 from Chengdu, China. The authors determined the prevalence of individuals with eosinophil counts above the normal reference range each day. A distributed lag non-linear model was used to evaluate the lagged effect of each air pollutant on eosinophil counts. The lagged effects of each air pollutant were counted and presented with smoothing splines.ResultsThe effects of air pollutants such as particulate matter (PM2.5, aerodynamic diameters <2.5 μm; PM10, aerodynamic diameters <10 μm), nitrogen dioxide (NO2) and ozone (O3) were evaluated. In women, the effects of PM2.5 (RR = 1.154, 95% CI: 1.061–1.255) and PM10 (RR = 1.309, 95% CI: 1.130–1.517) reached the maximum values on lag day 0. In men, there was no significant effect of PM2.5, but significant effects of PM10 were found for lag days 20–28. The effects of NO2 and O3 on eosinophils were not statistically significant for either gender.ConclusionsThe air pollutants of PM10 have a significant effect on human eosinophils for both women and men, but with different temporal patterns, with women showing a lag of 0–5 days and men showing a lag of 20–28 days. In addition, PM2.5 was significant for women with a lag of 0–3 days but it was not significant for men.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2020, 33, 3; 299-310
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Accuracy of Potential Flow Methods to Solve Real-time Ship-Tug Interaction Effects within Ship Handling Simulators
    Autorzy:
    Jayarathne, B. N.
    Ranmuthugala, D.
    Fei, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/117010.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    ship handling
    ship handling simulator
    hydrodynamics
    Computation Fluid Dynamics (CFD)
    potential flow
    ship-tug interaction
    real time
    hydrodynamic interaction effect
    Opis:
    The hydrodynamic interaction effects between two vessels that are significantly different in size operating in close proximity can adversely affect the safety and handling of these vessels. Many ship handling simulator designers implement Potential Flow (PF) solvers to calculate real-time interaction effects. However, these PF solvers struggle to accurately predict the complicated flow regimes that can occur, for example as the flow passes a wet transom hull or one with a drift angle. When it comes to predicting the interaction effects on a tug during a ship assist, it is essential to consider the rapid changes of the tug’s drift angle, as the hull acts against the inflow creating a complicated flow regime. This paper investigates the ability of the commercial PF solver, Futureship®, to predict the accurate interaction effects acting on tugs operating at a drift angle during ship handling operations through a case study. This includes a comparison against Computation Fluid Dynamics (CFD) simulations and captive model tests to examine the suitability of the PF method for such duties. Although the PF solver can be tuned to solve streamline bodies, it needs further improvement to deal with hulls at drift angles.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8 no. 4; 497-504
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of voids and backfill on seismic wave velocity-preliminary results
    Autorzy:
    Mukhamedyarova, Zarina
    Suorineni, Fidelis
    Aldubay, Temirlan
    Sapinov, Gylym
    Powiązania:
    https://bibliotekanauki.pl/articles/2201421.pdf
    Data publikacji:
    2022
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    seismic event source location accuracy
    constantly changing mine conditions
    real-time seismic wave velocity
    void and cemented sand backfill effect with time
    dokładność lokalizacji źródła zdarzeń sejsmicznych
    stale zmieniające się warunki kopalniane
    prędkość fali sejsmicznej w czasie rzeczywistym
    Opis:
    In this study, laboratory experiments were conducted on discrete physical models that mimic mining effects to better understand the impact of continuous changes in mining environments on seismic wave velocities. The discrete physical models are represented by concrete and granite cubic samples of different sizes with holes of different diameters filled and unfilled with cemented sand backfill of different cement-sand content ratios. The hole diameters range from 0 to 150 mm in block sizes ranging from 150 mm to 450 mm in increments of 75 mm. The increasing hole size mimics increasing extraction in the mine with time. Cemented sand fills at cement contents ranging from 0 to 20% are used to fill the voids after testing them empty and retesting the same at different backfill cured ages. The SAEU3H AE eight-channel system is used in the study. Preliminarily results show that the impact of continuous changes in mining environments significantly affects the seismic wave velocities. The impact of voids and their contents on the seismic wave velocity depends on the sensor location relative to source and void, and it backfills cement content with time.
    Źródło:
    Journal of Sustainable Mining; 2022, 21, 4; 319--333
    2300-1364
    2300-3960
    Pojawia się w:
    Journal of Sustainable Mining
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary study on adverse effects of phenanthrene and its methyl and phenyl derivatives in larval zebrafish, Danio rerio
    Autorzy:
    Wolińska, L.
    Brzuzan, P.
    Woźny, M.
    Góra, M.
    Łuczyński, M. K.
    Podlasz, P.
    Kolwicz, S.
    Piasecka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/363152.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    toksyczność ostra
    CYP1A
    cyp1b1
    geny vtg
    ekspresja mRNA
    stężenie nie wywołujące efektu
    WWA
    Real-Time qPCR
    acute toxicity
    cyp1a genes
    cyp1b1 genes
    vtg genes
    mRNA expression
    No Effect Concentration
    PAHs
    Opis:
    Toxic effects of polycyclic aromatic hydrocarbons (PAHs) have been extensively studied in fish, although knowledge concerning biological activities of phenanthrene and its derivatives remains still incomplete. The aim of this work was to evaluate lethal and sublethal effects of benzo(a)pyrene, phenanthrene and phenanthrene derivatives (1-methylphenanthrene, 4-methylphenanthrene, 1-phenylphenanthrene and 4-phenylphenanthrene) on zebrafish (Danio rerio) larvae. We conducted acute toxicity test, using 96h static renewal exposure to a series of the PAH concentrations (0.05, 0.50, 5.00, 50.00µmol*l-1), to determine the No Effect Concentration (NEC) value for each compound examined. The mean NEC estimates obtained in the study were 5.16۪.45µmol*l-1 (B[a]P), 4.88۪.13µmol*l-1 (Ph), 40.24䔰.93µmol*l-1 (1P-Ph), 47.92ۭ.61µmol*l-1 (1M-Ph), 24.31۱.33µmol*l-1 (4P-Ph) and 3.11۫.01µmol*l-1 (4M-Ph) and suggested the following order of PAH toxicities on Danio rerio larvae: 4M-Ph>Ph˜B[a]P>4PPhP-Ph>1M-Ph. To gain insight into possible molecular mechanisms of apparent toxicity of phenanthrene derivatives on zebrafish larvae, we examined mRNA expression of cyp1a, cyp1b1, and vtg genes in the larvae exposed for 48h to a PAH concentration of 0.50µmol*l-1. Whereas the larvae exposed to each tested PAH displayed many developmental abnormalities (i.e. pericardial and yolk sac edema, dorsal curvature, or tail malformations), no significant upregulation of cyp1a and cyp1b1 mRNA was observed, except for zebrafish exposed to B[a]P. However, significant reduction of vtg mRNA was observed in the larvae exposed to phenanthrene and its 4P- derivative. The results may contribute to the development of a new knowledge about effects of structurally diverse phenanthrene derivatives on vertebrate organisms.
    Źródło:
    Environmental Biotechnology; 2011, 7, 1; 26-33
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Skutkowe czy formalne przestępstwo nadużycia władzy
    Material or formal character of crime of abuse of power
    Autorzy:
    Nowak, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/1806716.pdf
    Data publikacji:
    2019-11-16
    Wydawca:
    Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
    Tematy:
    przestępstwo nadużycia władzy
    art. 231 § 1 k.k.
    konkretne narażenie na niebezpieczeństwo
    abstrakcyjne narażenie na niebezpieczeństwo
    przestępstwa skutkowe
    przestępstwa formalne
    skutek w prawie karnym
    analiza semantyczna
    crime of abuse of power
    article 231 (1) of Criminal Code
    real exposure to danger
    abstract exposure to danger
    material offenses
    formal offenses
    effect in criminal law
    the semantic analysis
    Opis:
    Autor przeprowadza rozważania w przedmiocie charakteru art. 231 § 1 k.k. w kontekście jego skutkowego bądź bezskutkowego charakteru, odnosząc się do głównych argumentów wskazywanych w literaturze i orzecznictwie na rzecz jednego albo drugiego stanowiska. W wyniku przeprowadzonej analizy dochodzi do konkluzji, że art. 231 § 1 k.k. statuuje przestępstwo abstrakcyjnego narażenia na niebezpieczeństwo, jednocześnie formułując postulaty de lege ferenda zawężenia jego pola kryminalizacji.
    The author makes reflections on the nature of Article 231 (1) of Criminal Code in terms of material or formal character, referring to the main arguments pointed out in the literature and judicature in favor of one or the other position. As a result of the analysis comes to the conclusion that Article 231 (1) of Criminal Code regulates offense of abstract exposure to danger, formulating the proposals de lege ferenda of narrowing the field of criminalization
    Źródło:
    Roczniki Nauk Prawnych; 2015, 25, 1; 43-60
    1507-7896
    2544-5227
    Pojawia się w:
    Roczniki Nauk Prawnych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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