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Tytuł:
Predicting parity progression ratios for young women by the end of their childbearing life
Autorzy:
Rossa, Agnieszka
Palma, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1358421.pdf
Data publikacji:
2020-03-23
Wydawca:
Główny Urząd Statystyczny
Tematy:
fertility rates
parity
projected parity progression ratios
Opis:
Parity progression ratios (PPR's) have been extensively described in literature on demography and have played an important role in fertility, unlike the idea of calculating projected parity progression ratios proposed by Brass (1985). However, we decided to use this method in our paper to analyse future fertility trends, firstly by assessing age-specific parity progression ratios for women in childbearing ages, and then by comparing these ratios with ratios at the end of women's reproductive life, as well as by comparing the latter with the completed PPR's. More specifically, the aim of this study is to adopt a modified Brass method to calculate the projected parity progression ratios using the age-period fertility data sourced from the Human Fertility Database (HFD). We progress to use the observed and predicted age-specific PPR's to examine parity progressions in Poland as a case study.
Źródło:
Statistics in Transition new series; 2020, 21, 1; 55-71
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wiedźmy i dziwadła, czyli polska droga do parytetu
Witches and Weirdos, or the Polish Road to Parity
Autorzy:
KLEJDYSZ, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/616530.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
parity
woman
parytet
kobieta
Opis:
The next parliamentary elections in Poland will be held on the basis of the amended elec- toral law. The changes introduced involve a quota system: the ballots are required to provide for at least 35% of women and at least 35% of men. Nearly a hundred years passed from 1918, when Polish women first won voting rights, till the President of Poland signed the so-called parity law. It would not be true, however, to say that this was a century of struggle for the equality of rights of men and women in our country. It was only after 1989 that efficient steps could be taken in this area in Poland. Therefore, the quota system that has been introduced, to be tested in practice soon, is actually the consequence of twenty years of endeavors. The advocates of such a solution consider this to be the first step towards electoral parity. Following the solutions that numerous European countries have introduced, public debate in Poland increasingly more often refers to proposals to ‘spread’ the quota system, and then parity, also to other domains, such as management or education. The opening of a serious debate on these issues will to a large extent depend on the results of the recent quota changes of the electoral law.
Źródło:
Przegląd Politologiczny; 2011, 2; 79-90
1426-8876
Pojawia się w:
Przegląd Politologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parity vertex colorings of binomial trees
Autorzy:
Gregor, Petr
Škrekovski, Riste
Powiązania:
https://bibliotekanauki.pl/articles/743737.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
binomial tree
parity coloring
vertex ranking
Opis:
We show for every k ≥ 1 that the binomial tree of order 3k has a vertex-coloring with 2k+1 colors such that every path contains some color odd number of times. This disproves a conjecture from [1] asserting that for every tree T the minimal number of colors in a such coloring of T is at least the vertex ranking number of T minus one.
Źródło:
Discussiones Mathematicae Graph Theory; 2012, 32, 1; 177-180
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parytety i kwoty wyborcze a Konstytucja RP
Parity and Electoral Quotas versus the Constitution of the Polish Republic
Autorzy:
URBANIAK, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/616524.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
parity
electoral quotas
parytet
kwoty wyborcze
Opis:
The issue of intensifying female participation in public life, and particularly in political life, has recently been the subject of lively discussions, in particular in the social sciences. The number of female candidates on the election ballots for representative organs is clearly insufficient in comparison to the size of the female electorate, as well as the abilities, skills and intellectual potential women occupy. This problem has also been widely discussed in Poland. As a result of these quite heated disputes and discussions, accompanied by an interesting exchange of views on the doctrine of electoral law, an instrument to increase female representation on election ballots (a quota system) was introduced into the Polish electoral system. The subject of this paper, however, is not the issue of the grounds or justification for the legal instruments applied, or an assessment of the activities of the state authorities or the institutions of public life in this respect. Rather, the paper analyzes the legal solutions introduced in Poland in order to increase the political participation of women from the point of view of their conformity with the regulations of the Constitution of the Polish Republic. For this purpose, the author refers both to the doctrine of constitutional law and the adjudications of the Constitutional Tribunal. This analysis leads to the conclusion that the ‘compensatory privilege’, introduced in law, is highly questionable in terms of its conformity with the Polish Constitution. In this light an amendment to the Constitution would be recommended, providing a constitu- tional status to the provisions on equality.
Źródło:
Przegląd Politologiczny; 2011, 2; 67-78
1426-8876
Pojawia się w:
Przegląd Politologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grouped risk parity portfolios for stocks from the WSE
Autorzy:
Gluzicka, Agata
Powiązania:
https://bibliotekanauki.pl/articles/582420.pdf
Data publikacji:
2017
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
risk parity portfolio
grouped risk parity
equally risk contribution portfolio
diversification
well-diversified portfolio
Opis:
The risk parity portfolios are characterized by equally weighted contributions of all assets. Very often, the idea of risk parity is considered as a special type of the diversification strategy. This approach became very popular among investors after the last economic crisis, when many portfolios perceived as well-diversified suddenly became undiversified portfolios. Usually, risk parity is calculated for individual stocks. In this article, the method of estimating risk parity portfolios for grouped stocks is discussed. The presented model is applied to selected stocks belonging to different groups (sectors, size of companies) and quoted on the Warsaw Stock Exchange. The main goal of the empirical research is the analysis of the risk parity portfolios calculated for the groups of stocks and also for individual stocks. Additionally, the risk parity portfolios are compared with the naive portfolios and minimum variance portfolios. All portfolios are compared according to the risk, rate of return, Sharpe ratio and the future profits.
Źródło:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2017, 482; 36-46
1899-3192
Pojawia się w:
Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decompositions of Plane Graphs Under Parity Constrains Given by Faces
Autorzy:
Czap, Július
Tuza, Zsolt
Powiązania:
https://bibliotekanauki.pl/articles/30146456.pdf
Data publikacji:
2013-07-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
plane graph
parity partition
edge coloring
Opis:
An edge coloring of a plane graph G is facially proper if no two faceadjacent edges of G receive the same color. A facial (facially proper) parity edge coloring of a plane graph G is an (facially proper) edge coloring with the property that, for each color c and each face f of G, either an odd number of edges incident with f is colored with c, or color c does not occur on the edges of f. In this paper we deal with the following question: For which integers k does there exist a facial (facially proper) parity edge coloring of a plane graph G with exactly k colors?
Źródło:
Discussiones Mathematicae Graph Theory; 2013, 33, 3; 521-530
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odd and residue domination numbers of a graph
Autorzy:
Caro, Yair
Klostermeyer, William
Goldwasser, John
Powiązania:
https://bibliotekanauki.pl/articles/743442.pdf
Data publikacji:
2001
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
dominating set
odd dominating set
parity domination
Opis:
Let G = (V,E) be a simple, undirected graph. A set of vertices D is called an odd dominating set if |N[v] ∩ D| ≡ 1 (mod 2) for every vertex v ∈ V(G). The minimum cardinality of an odd dominating set is called the odd domination number of G, denoted by γ₁(G). In this paper, several algorithmic and structural results are presented on this parameter for grids, complements of powers of cycles, and other graph classes as well as for more general forms of "residue" domination.
Źródło:
Discussiones Mathematicae Graph Theory; 2001, 21, 1; 119-136
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Colouring vertices of plane graphs under restrictions given by faces
Autorzy:
Czap, Július
Jendrol', Stanislav
Powiązania:
https://bibliotekanauki.pl/articles/744449.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
vertex colouring
plane graph
weak parity vertex colouring
strong parity vertex colouring
proper colouring
Lebesgue theorem
Opis:
We consider a vertex colouring of a connected plane graph G. A colour c is used k times by a face α of G if it appears k times along the facial walk of α. We prove that every connected plane graph with minimum face degree at least 3 has a vertex colouring with four colours such that every face uses some colour an odd number of times. We conjecture that such a colouring can be done using three colours. We prove that this conjecture is true for 2-connected cubic plane graphs. Next we consider other three kinds of colourings that require stronger restrictions.
Źródło:
Discussiones Mathematicae Graph Theory; 2009, 29, 3; 521-543
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fertility Trends in European Countries
Trendy płodności w krajach europejskich
Autorzy:
Palma, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1033534.pdf
Data publikacji:
2021-04-15
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
płodność
współczynniki dzietności
dzietność kobiet
cząstkowe współczynniki płodności
wskaźnik przeciętnej kolejności urodzenia
progresywne współczynniki kolejności urodzenia
fertility rates
average parity
parity progression ratios
projected parity progression ratios
Opis:
This work is intended as an attempt to illustrate and compare the pattern of fertility in European countries: Belarus, Croatia, Hungary, Poland, Portugal, Spain, Sweden, and Switzerland. It deals with the analysis of fertility trends, with an emphasis on birth by parity. Using data from the Human Fertility Database (HFD) from the year 2016, it has considered the parameters of parity progression ratios (PPR), projected parity progression ratios (PPPR), age‑specific fertility rates (ASFR), age‑order specific fertility rates (AOSFR), and cumulated order‑specific fertility rates accordingly analysed. We have applied indicators known as the projected parity progression ratios to estimate trends of fertility. These offer a more detailed view of the family formation process than the traditional total fertility rate (TFR).
Analiza płodności jest w demografii tematem, który przyciąga uwagę wielu badaczy. Demografowie opracowali wiele różnych metod pomiaru tego zjawiska. Większość badań wykorzystuje tradycyjne miary. Nie dają one jednak szczegółowych informacji na temat tego, jak dokładnie zmienia się płodność w zależności od kolejności urodzenia. Głównym celem jest zbadanie tempa i wzorca płodności oraz zróżnicowania postępów w zakresie kolejności urodzeń w wybranych krajach europejskich. Metoda zapoczątkowana przez Brassa pozwala oszacować progresywne współczynniki kolejności urodzeń. W badaniu tym dokonujemy porównań między obserwowanymi i przewidywanymi współczynnikami. Wyniki pokazują, że metoda prognozowanych współczynników kolejności urodzeń daje stosunkowo dobre dopasowanie i jest przydatna do przewidywania przyszłych trendów płodności. Spadek dzietności w rozważanych krajach europejskich jest spowodowany późnymi decyzjami kobiet o posiadaniu pierwszego dziecka oraz ich tendencją do rodzenia mniejszej liczby dzieci.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2021, 2, 353; 7-28
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Haemocytometric profile and plasma levels of selected cytokines in patients at various stages of cervical cancer
Autorzy:
Alani Jimoh, Mutiu
Adekunle Onifade, Abdulfatah
Mpakaboari Abbiyesuku, Fayeofori
Fabian Edem, Victory
Kadiri Rahamon, Sheu
Ganiyu Arinola, Olatunbosun
Powiązania:
https://bibliotekanauki.pl/articles/29520454.pdf
Data publikacji:
2023-12-31
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
cancer stage
cervical cancer
haemocytometry
interleukin-6
parity
Opis:
Introduction and aim. Reports have shown that there is alteration in haematological and inflammatory processes in patients with cervical cancer. However, there is the dearth of information on the pattern of alteration in Nigerian patients with cervical cancer at various stages of the disease. Therefore, haemocytometric profile and plasma levels of interleukin-6 (IL-6) and IL-12 were determined in Nigerian patients with cervical cancer at various stages of the disease. Material and methods. Eighty-nine adults consisting of 49 patients with cervical cancer and 40 apparently healthy controls were enrolled into this study. Haemocytometric profile was determined using automated haematology analyzer while the plasma levels of interleukin-6 (IL-6) and IL-12 were determined using ELISA. Results. Of the participants with cervical cancer, 6.12%, 24.49%, 53.06% and 16.33% were in stages I, II, III and IV respectively. The mean plasma IL-6 level was significantly higher in patients at stage IV of the cancer compared with those in stages I, II and III. No significant differences were observed in the mean plasma IL-12 level, and the haemocytometric profile when patients in different stages of the cancer were compared with one another. Plasma IL-6 had significant positive correlation with the lymphocytes count and cancer stage but had significant negative correlation with packed cell volume (PCV), haemoglobin and total white blood cells count (WBC) in patients with cervical cancer. Conclusion. Interleukin-6 appears to play an important role in the progression of cervical cancer and could be involved in cervical cancer-associated alteration in haemocytometric profile.
Źródło:
European Journal of Clinical and Experimental Medicine; 2023, 4; 696-703
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 68

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