Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 32
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

The presence of Euphausia superba, E. crystallorophias and Thysanoessa macrura was observed in Admiralty Bay (King George Island, South Shetland Islands) and the size of individuals of particular species are diverse and varying during the summer season. E. superba population is older and specimens larger than in analogous season in 1979. The maximum number of females with eggs was noted in the first half of January 1980, i.e. earlier than in 1979. In E, crystallorophias population the presence of females with eggs was observed in the second half of December 1979.

Go to article

Authors and Affiliations

Hanna Jackowska
Download PDF Download RIS Download Bibtex

Abstract

The author supports the claim that attempts to formulate a universal definition of the term “populism” are not worthwhile, because the sense of the term is usually determined by a specific social context. Understanding the utopian nature of populism provides a better understanding of the utopian nature of democracy and allows for a humble departure from dreams of a perfect social order, because, as has been shown in numerous survey studies, the contemporary shift of social mood, attitudes, and opinions toward some version of populism is a relatively simple consequence of the deficiencies of democracy in its neoliberal version.

Go to article

Authors and Affiliations

Kazimierz W. Frieske
Download PDF Download RIS Download Bibtex

Abstract

Euphausia superba and E. crystallorophias were the dominant species in the area studied, Thysanoessa macrura, E. jrigida and E. triacantha were also present. The abundance of krill was changing during the year; minimum occurred between March and August and maxima between December and February and from September till November. Age structure of three most frequently occurring species showed seasonal variations. The periods of development and Reproduction were different for T. macrura, E. erystallorophias and E. superba.

Go to article

Authors and Affiliations

Ryszard Stępnik
Download PDF Download RIS Download Bibtex

Abstract

There are currently more than 5,800 species of mammals in the world. They exhibit complex patterns of spatial organization in how they function in their habitats and in how they relate to other individuals of the same species.
Go to article

Authors and Affiliations

Elżbieta Jancewicz
1

  1. Warsaw University of Life Sciences (SGGW), Institute of Forest Sciences, Department of Forest Zoology and Wildlife Management
Download PDF Download RIS Download Bibtex

Abstract

Remarks on the chronology of stages in scientific development.
Go to article

Authors and Affiliations

Leszek Zasztowt
1

  1. Centre for East European Studies, Faculty of Oriental Studies, University of Warsaw
Download PDF Download RIS Download Bibtex

Abstract

What does the phenomenon of online “fake news” stem from? What are scholars doing to combat disinformation?
Go to article

Authors and Affiliations

Piotr Karwowski
Download PDF Download RIS Download Bibtex

Abstract

Training a neural network can be a challenging task, particularly when working with complex models and large amounts of training data, as it consumes significant time and resources. This research proposes a hybrid model that combines population-based heuristic algorithms with traditional gradient-based techniques to enhance the training process. The proposed approach involves using a dynamic population-based heuristic algorithm to identify good initial values for the neural network weight vector. This is done as an alternative to the traditional technique of starting with random weights. After several cycles of distributing search agents across the search domain, the training process continues using a gradient-based technique that starts with the best initial weight vector identified by the heuristic algorithm. Experimental analysis confirms that exploring the search domain during the training process decreases the number of cycles needed for gradient descent to train a neural network. Furthermore, a dynamic population strategy is applied during the heuristic search, with objects added and removed dynamically based on their progress. This approach yields better results compared to traditional heuristic algorithms that use the same population members throughout the search process.
Go to article

Authors and Affiliations

Amer Mirkhan
1
Numan Çelebi
2
ORCID: ORCID

  1. Sakarya University, Computer Engineering Department
  2. Sakarya University, Information Systems Engineering Department
Download PDF Download RIS Download Bibtex

Abstract

The article is based on a thorough reading of one of the latest anthropological contributions to the study of demographic behavior and a demographic change. Reviewing the essays contained in the book is a springboard for exploration of the nature of a presumed "epistemological crisis" within demography and the possible refreshment of the discipline that might have come from anthropological theories and methodologies. By doing so, the examples of anthropological reformulations of the fundamental demographic concepts, presumptions and methods are presented, and the benefits and pitfalls of the liaison between anthropology and demography are discussed.
Go to article

Authors and Affiliations

Mikołaj Szołtysek
Download PDF Download RIS Download Bibtex

Abstract

Material for this paper was collected during the BIOMASS-SIBEX research programme, and consisted of 97 samples taken at 47 stations in Drake Passage and Bransfield Strait (Antarctica). The samples were taken by hauling Nansen nets vertically through the 0-100, 100 - 300 and 300 - 500 m layers at the end of December 1983 and the beginning of January 1984. Four Chaetognatha species were recorded in the study region: Eukrohnia hamata, Sagitta gazellae, Sagitta mari and Sagitta planctonis. The population structures of the dominant species E. hamata and also S. gazellae were analyzed in the context of the region's hydrology. Certain regularities are apparent in the distribution of the developmental stages of E. hamata in water column. Mature specimens of this species inhabit deeper waters than juveniles. The highest proportions of juveniles in the entire population of E. hamata were recorded in slightly warmer waters.

Go to article

Authors and Affiliations

Katarzyna Błachowiak-Samołyk
Luiza Bielecka
Maria I. Żmijewska
Download PDF Download RIS Download Bibtex

Abstract

The paper deals with the structural variability and generative reproduction of Saxifraga oppositifolia populations in eight localities situated in Western Spitsbergen. The localities differed in terms of humidity, soil fertility, microclimate and frequency of disturbances. The population structure, the growth and development rate of individuals in the sea terrace and at the peat-bog prove that a dense plant cover influences positively the development of S. oppositifolia. The size of individuals, their biomass and population density is limited in most of the studied localities. Solifluction is the factor influencing the development of a population to the greatest extent. Of all the researched populations the weakest development was observed in the active structural grounds. Yearly changes in the structure of the populations as well as the yearly growth of the species studied are limited. The longevity, the development rate and size of the seedling recruitment are subject to modifications caused by the solifluction.

Go to article

Authors and Affiliations

Ewa Pirożnikow
Download PDF Download RIS Download Bibtex

Abstract

The population structures of Calanus finmarchicus, C.glacialis and C.hyperboreus were investigated in the recurrent polynya of the North Waters (NOW) in Baffin Bay during April –July 1998. Species were determined from samples collected by plankton nets of 300 ľm and 200 ľm mesh size. The highest concentration of all three species was found at the centre of study the area. C.hyperboreus was the most abundant species (44.54 ind.m –3).C.glacialis was recorded up to 27.14 ind.m –3, C.finmarchicus up to 5.63 ind.m –3 .C.finmarchicus was reproducing in the northern end of Baffin Bay.The life cycle for C.glacialis was estimated at 2 years,and that of C.hyperboreus to last at least 4 years.

Go to article

Authors and Affiliations

Anna Prokopowicz
Louis Fortier
Download PDF Download RIS Download Bibtex

Abstract

This paper presents preliminary data on the population structure of two Antarctic crustaceans Eudorella splendida and Nototanais antarcticus, commonly occurring in Admiralty Bay (South Shetland Islands). From analysis of the material studied it can be concluded that N. antarcticus is a progynous hermaphrodite with a life cycle lasting at least two years. The life cycle of E. splendida lasts probably 3-4 years. It is a semelparous species, but some females after brooding moult and revert into the intermediate stage.

Go to article

Authors and Affiliations

Magdalena Błażewicz-Paszkowycz
Download PDF Download RIS Download Bibtex

Abstract

Populism is understood here according to the widely accepted definition by C. Mudde as a para-ideology containing two components, anti-elitism and the sovereignty of the people. It expresses itself in the form of social movements, specific forms of policy pursued, which sustains or inspires social conflicts, and at the same time is intended to please the people. Politics is led by a charismatic leader who gains legitimacy through elections, but the conditions of electoral competition are modified in various ways to ensure the success of the populist party and its leader. The article discusses the results of psychological research that deal with the psychological determinants of populist attitudes. They concern the emotionalmotivational and cognitive functioning of those who accept the para-ideology of populism and populist power. The genesis of populism is also discussed, which is related to some important defects in liberal democracies.
Go to article

Authors and Affiliations

Janusz Reykowski
1
ORCID: ORCID

  1. Instytut Psychologii PAN, Warszawa
Download PDF Download RIS Download Bibtex

Abstract

In the 20th century toponymy of the Kłodzko Land underwent serious changes, which with no doubt can be called a revolution. After 1945 and the displacement of the German population all the pre-war names were substituted with Polish ones, which, unfortunately, only rarely were connected with the former tradition, in some cases as old as the middle ages. Most of new names were introduced by a special commission whose main aim was to mark that the new areas gained by Poland after the World War II (the so called Regained Territories) were successfully taken into possession. However, many places and objects (some mountain tops, rock formations, springs, parts of villages) did not receive a name. In the next decades, new local communities started to accustom the mountainous landscape and independently gave names to various nameless (in Polish) places. Unfortunately, due to the depopulation of rural areas in the Kłodzko Land and other formal reasons, the process was quite slow. The main aim of the paper is not only to analyse those changes, but also to compare the numbers of names in chosen moments of the 20th century. For this purpose three types of maps in 1 : 25 000 scale were used: pre-war (German) “Meßtischblatt”, a Polish topographic map representing the situation at the beginning of the 1970s and, finally, the “Army topographic map” from the end of the 20th century. On the first map 531 geographical names were marked, on the second — only 225, and on the third — 277, which is still approximately half of the number before 1945.

Go to article

Authors and Affiliations

Krzysztof Kołodziejczyk
Robert Szmytkie
Download PDF Download RIS Download Bibtex

Abstract

According to the social psychological literature, egoistic relative deprivation impairs well-being but has at most little impact on political protest and engagement. We considered this view incomplete and over-simplifying. It was predicted that egoistic relative deprivation itself may impair democracy by increasing support for populism, and that the postulated relationship will be mediated by dysphoric affect, political alienation, and political paranoia. The empirical basis of the article were three studies carried out on nationwide random-quota samples of adult Poles: in 2002 (N = 1500), in 2010 (N = 800), and in 2017 (N = 2000). It was found that support for populism systematically depends directly on dysphoric affect and political paranoia, which are strengthened by egoistic relative deprivation. In 2017, with populist political groupings in power in Poland, the role of political alienation turned out to be ambiguous. Political alienation slightly strengthened political paranoia but directly lowered support for populism. In conclusion it was noted that in Poland's history and in the contemporary Polish mentality there is a great potential for negative affect, pessimism and bitterness. Relative deprivation experienced today successfully maintains this potential.
Go to article

Bibliography

Abrams, D., Grant, P., R., (2012). Testing the social identity relative deprivation (SIRD) model of social change: The political rise of Scottish nationalism. British Journal of Social Psychology, 51, 674–689. https://doi.org/10.1111/j.2044-8309.2011.02032.x
Beck, A., T., Ward, C., H., Mendelson, M., Mock, J., Erbaugh, J., (1961). An inventory for measuring depression. Archives of General Psychiatry, 4, 561-571.
Bernburg, J., G., Thorlindsson, T., Sigfusdottir, I., D., (2009). Relative deprivation and adolescent outcomes in Iceland: A multilevel test. Social Forces, 87(3), 1223-1250. https://doi.org/10.1353/sof.0.0177
Brader, T., Marcus, G., E., (2013). Emotion and political psychology. In: Huddy, L., Sears, D., O., Levy, J., S., (Eds.). The Oxford handbook of political psychology (pp. 165-204). Oxford, UK: Oxford University Press.
Callan, M., J., Kim, H., Matthews, W., J., (2015). Predicting self-rated mental and physical health: The contributions of subjective socio-economic status and personal relative deprivation. Frontiers in Psychology, 6, 1415. https://doi.org/10.3389/fpsyg.2015.01415
Canovan, M., (2002). Populism. New York, NY: Harcourt Brace Jovanovich. Cantril, H., (1965). The pattern of human concerns. New Brunswick, NJ: Rutgers University Press.
Corning, A., F., (2000). Assessing perceived social inequity: A relative deprivation framework. Journal of Personality and Social Psychology, 78(3), 463-477. https://doi.org/10.1037/0022-3514.78.3.463
Crosby, F., (1976). A model of egoistical relative deprivation. Psychological Review, 83(2), 85-113. https://doi.org/10.1037/0033- 295x.83.2.85
Czapiński, J., Panek, T., (red.) (2009). Diagnoza Społeczna 2009. Warunki i jakość życia Polaków. http://www.diagnoza.com/pliki/ raporty/Diagnoza_raport_2009.pdf (13.07.2020).
Czapiński, J., Panek, T., (red.) (2015). Diagnoza Społeczna 2015. Warunki i jakość życia Polaków. http://www.diagnoza.com/pliki/ raporty/Diagnoza_raport_2015.pdf (13.07.2020).
Dambrun, M., Taylor, D., M., McDonald, D., A., Crush, J., Meot, A., (2006). The relative deprivation–gratification continuum and the attitudes of South Africans toward immigrants: A test of the V-curve hypothesis. Journal of Personality and Social Psychology, 91(6), 1032–1044. https://doi.org/10.1037/t33410-000
Davies, N., (1981). God’s playground. A history of Poland. Volume II: 1795 to the present. Oxford, U.K.: Oxford University Press. https:// doi.org/10.2307/1865504
de la Rey, C., Raju, P., (1996). Group relative deprivation: Cognitive versus affective components and protest orientation among Indian South Africans. Journal of Social Psychology, 136(5), 579-588.
de la Sablonnière, R., Auger, E., Sadykova, N., Taylor, D., M., (2010). When the ‘‘We’’ impacts how ‘‘I’’ feel about myself. Effect of temporal collective relative deprivation on personal well-being in the context of dramatic social change in Kyrgyzstan. European Psychologist, 15(4), 271–282. https://doi.org/10.1027/1016-9040/ a000062
Eibner, C., Evans, W., N., (2005). Relative deprivation, poor health habits, and mortality. The Journal of Human Resources, XI (3), 591-620. https://doi.org/10.3368/jhr.xl.3.591
European Social Survey 2012 (2012). http://www.europeansocialsurvey. org/download.html?file=ESS6e02_1andy=2012 (13.07.2020).
European Social Survey 2014 (2014). http://www.europeansocialsurvey. org/download.html?file=ESS7e01andy=2014 (13.07.2020).
Feather, N., T., (2015). Analyzing relative deprivation in relation to deservingness, entitlement and resentment. Social Justice Research, 28, 7–26. https://doi.org/10.1007/s11211-015-0235-9
Foster, M., D., Matheson, K., (1995). Double relative deprivation: Combining the personal and the political. Personality and Social Psychology Bulletin, 21(11), 1167-1177. https://doi.org/10.1177/ 01461672952111005
Gerber, E., R., (1999). The populist paradox. Princeton, NJ: Princeton University Press.
Grant, P., R., Abrams, D., Robertson, D., W., Garay, J., (2015). Predicting protests by disadvantaged skilled immigrants: A test of an integrated social identity, relative deprivation, collective efficacy (SIRDE) Model. Social Justice Research, 28, 76–101. https://doi.org/ 10.1007/s11211-014-0229-z
Greven, T., (2016). The rise of right-wing populism in Europe and the United States: A comparative perspective. Berlin: Friedrich-Ebert-Stiftung.
Guiso, L., Herrera, H., Morelli, M., Sonno, T., (2017). Demand and supply of populism. EIEF Working Paper 3/2017. Rome: Einaudi Institute for Economics and Finance. https://doi.org/10.14612/ guiso_herrera_morelli_sonno_1-2_2017
Held, J., (Ed.) (1966). Populism in Eastern Europe: Racism, nationalism and society. New York, NY: Boulder: East European Monographs. https://doi.org/10.2307/310213
Hooghe, M., Reeskens, T., (2007). Are cross-national surveys the best way to study the extreme-right vote in Europe? Patterns of Prejudice, 41 (2), 177-195. https://doi.org/10.1080/0031322 0701265544
Inglehart, R., F., and Norris, P., (2016). Trump, Brexit, and the rise of populism: Economic have-nots and cultural backlash. Faculty Research Working Paper Series. Cambridge, MA: Harvard Kennedy School. https://doi.org/10.2139/ssrn.2818659
Ionescu, G., Gellner, E., (Eds.) (1970). Populism: Its meaning and national characteristic. London and Sydney: Weidenfeld and Nicolson. https://doi.org/10.2307/3102910
Korzeniowski, K., (1994). Political alienation in Poland in days of systemic transformation. Polish Psychological Bulletin, 25(3), 187-200.
Korzeniowski, K., (2010). Polska paranoja polityczna. Źródła, mechanizmy i konsekwencje spiskowego myślenia o polityce. [ Polish political paranoia. Determinants, mechanisms and consequences of conspir-atorial thinking about politics] Warszawa: Wydawnictwo Instytutu Psychologii PAN.
Krasodomski-Jones, A., (2019). Suspicious minds. Conspiracy theories in the age of populism. Brussels: Wilfried Martens Centre for European Studies.
Leach, C., W., Iyer, A., Pedersen, A., (2007). Angry opposition to government redress: When the structurally advantaged perceive themselves as relatively deprived. British Journal of Social Psychology, (2007), 46, 191–204. https://doi.org/10.1348/014466606x 99360
Lewicka, M., (2004). Psychologiczne mechanizmy ludzkiej roszczeniowości (raport z realizacji grantu KBN nr 5 H01F 022 21). Warszawa: Wydział Psychologii Uniwersytetu Warszawskiego.
MacKinnon, D., P., Krull, J., M., Lockwood C., M., (2000). Equivalence of the mediation, confounding and suppression effect. Prevention Science, 1(4), 173–181.
Marchlewska, M., Castellanos, K., A., Lewczuk, K., Kofta, M., Cichocka, A., (2018). My way or the highway: High narcissism and low self- esteem predict decreased support for democracy. British Journal of Social Psychology, https://doi.org/10.1111/bjso.12290
Meny, Y., Surel, Y., (Eds.). (2002). Democracies and the populist challenge. London, UK: Pelgrave Macmillan. https://doi.org/ 10.1057/9781403920072
Miller, D., A., Cronin, T., Garcia, A,. L., Branscombe, N., R., (2009). The relative impact of anger and efficacy on collective action is affected by feelings of fear. Group Processes and Intergroup Relations, 12, 445–462. https://doi.org/10.1177/1368430209105046
Miller, D., T., Ross, M., (1975). Self-serving biases in the attributions of causality: Fact or fiction? Psychological Bulletin, 82, 213-225. https://doi.org/10.1037/h0076486
Osborne, D., Huo, Y., J., Smith, H., J., (2015).Organizational respect dampens the impact of group-based relative deprivation on will-ingness to protest pay cuts. British Journal of Social Psychology, 54, 159–175. https://doi.org/10.1111/bjso.12069
Osborne, D., Sibley, C., G., (2015). Opposing paths to ideology: Group- based relative deprivation predicts conservatism through warmth toward ingroup and outgroup members. Social Justice Research, 28, 27–51. https://doi.org/10.1007/s11211-014-0227-1
Paulhus, D., L., Robins, R., W., Trzesniewski, K., H., Tracy, J., L., (2004). Two replicable suppressor situations in personality research. Multivariate Behavioral Research, 39(2), 303–328. https://doi.org/ 10.1207/s15327906mbr3902_7
Pettigrew, T., F., Philipps, O., C., Philipps, U., W., Meertens, R., W., van Dick, R., Zick, A., (2008). Relative deprivation and intergroup prejudice. Journal of Social Issues, 64(2), 385-401.
Pipes, D., (1997). Conspiracy. How the paranoid style flourishes and where it comes from. New York, NY: The Free Press. https://doi.org/10.2307/20048795
Robins, R., S., Post, (1997). Political paranoia. The psychopolitics of hatred. New Haven, CT: Yale University Press.
Runciman, W., G., (1966). Relative deprivation and social justice. London, UK: Routledge Kegan Paul.
Schenkkan, N., (2017). Nations in transit 2017: The false promise of populism. Washington, DC: Freedom House.
Schenkkan, N., (2018). Nations in transit 2018: Confronting Illiberalism. Washington, D.C.: Freedom House.
Schmitt, M., Maes, J., (2002). Stereotypic ingroup bias as self-defense against relative deprivation: evidence from a longitudinal study of the German unification process. European Journal of Social Psychology, 32, 309–326. https://doi.org/10.1002/ejsp.91
Schmitt, M., Maes, J., Widaman, K., (2010). Longitudinal effects of egoistic and fraternal relative deprivation on well-being and protest. International Journal of Psychology, 45(2), 122–130. https://doi.org/ 10.1080/00207590903165067
Smith, H., J., Pettigrew, T., F., (2014). Interpretation of inequality: A model of the relative deprivation experience. Social and Personality Psychology Compass, 8/12, 755-765. https://doi.org/ 10.1111/spc3.12151
Smith, H., J., Pettigrew, T., F., Pippin, G., M., Bialosiewicz, S., (2012). Relative deprivation: A theoretical and meta-analytic review. Personality and Social Psychology Review, 16(3) 203 –232.
Smith, H., J., Ortiz, D., J., (2002). Is it just me?: The different consequences of personal and group relative deprivation. In: Walker, I., Smith, H., J., (Eds.) Relative deprivation: Specification, development, and integration (pp. 91-115). New York, NY,: Cambridge University Press. https://doi.org/10.1017/cbo9780511527753.005
Solomon, R., L., (1980). The opponent-process theory of acquired motivation: The costs of pleasure and the beneÞts of pain. American Psychologist, 35(8), 691–712. https://doi.org/10.1007/978-94-009- 8225-3_18
Stouffer, S., A., Suchman, E., A., DeVinney, L., C., Star, S., A., Williams, R., M., Jr., (1949). The American soldier: Vol. 1. Adjustment during army life. Princeton, NJ: Princeton University Press.
Turley, R., N., L., (2002). Is relative deprivation beneficial? The effects of richer and poorer neighbors on children’s outcomes. Journal of Community Psychology, 30(6), 671–686. https://doi.org/10.1002/ jcop.10033
Walker, I., Pettigrew, T., F., (1984). Relative deprivation theory: An overview and conceptual critique. British Journal of Social Psychology, 23(4), 301–310. https://doi.org/10.1111/j.2044-8309.1984. tb00645.x
Wickham, S., Shryane, N., Lyons, M., Dickins, T., Bentall, R., (2014). Why does relative deprivation affect mental health? The role of justice, trust and social rank in psychological wellbeing and paranoid ideation. Journal of Public Mental Health, 13(2), 114-126. https:// doi.org/10.1108/jpmh-06-2013-0049
Zagefka, H., Binder, J., Brown, R., Hancock, L., (2013).Who is to blame? The relationship between ingroup identification and relative deprivation is moderated by ingroup attributions. Social Psychology, 44(6), 398–407. https://doi.org/10.1027/1864-9335/a000153
Zagefka, H., Pehrson, S., Mole, R., C., Chan, E., (2010). The effect of essentialism in settings of historic intergroup atrocities. European Journal of Social Psychology, 40(5), 718–732. https://doi.org/10.1002/ejsp.639
Go to article

Authors and Affiliations

Krzysztof Korzeniowski
1

  1. Polish Academy of Sciences
Download PDF Download RIS Download Bibtex

Abstract

The article considers Lesya Ukrainka’s analytical and review work (born Larysa Kosacz – 1871‑1913) Notes about the Latest Polish Literature, published in the Russian magazine “Life” (1901, № 1). The writer chose not an analytical, but an analytical‑ironic “tone”, emphasizing the merits of Polish romantic poets headed by Adam Mickiewicz, as well as poets of the “Ukrainian school” of Polish Romanticism along with outstanding positivist writers (Bolesław Prus, Eliza Orzeszkowa, Henryk Sienkiewicz), without limiting these writers to populism, and stating their aesthetic tastes and ideological positions. The author pays most attention to the new Polish poetry, which had awoken “after thirty years of half sleep” in the age of modernism, in which she saw echoes of various “pessimistic movements” of world literature. At the same time, Lesya Ukrainka believed that Polish modernism had also its own ground, its appearance was prepared by the tragic contradictions of the Romantics, the collapse of the Polish szlachta ‘noble‑gentry’ ideals, and the degeneracy of positivist‑populist literature. The author pays most attention to the new aesthetics of Stanisław Przybyszewski and his manifesto of Polish modernism with its slogan of “art for art’s sake”.
Go to article

Bibliography

Fik I., Rodowód społeczny literatury polskiej, Wydanie drugie, Kraków 1946.
Jakóbiec M., Łesia Ukrainka i polska literatura romantyczna, „Slavia Orientalis”, rocznik XX, nr 4, Warszawa 1971.
Khmelyuk M., Polʹsʹka literatura v retseptsiyi Lesi Ukrayinky, [v:] Lesya Ukrayinka i suchasnistʹ: Zb. nauk. pr., Lutsʹk 2007, t. 4, kn. 1.
Koloshuk N., Lesya Ukrayinka u roli krytyka polʹsʹkoyi literatury, „Volynʹ filolohichna: tekst i kontekst: Zb. nauk. pr.”, Lutsʹk 2016, vyp. 22.
Korbych H., Zakhid, Polʹshcha, Rosiya v literaturno‑krytychnomu dyskursi rannʹoho ukrayinsʹkoho modernizmu. Vybrani aspekty retseptsiyi, Poznań 2010.
Korbych H., Lesya Ukrayinka – literaturnyy krytyk: osoblyvosti «zhinochoho pysʹma», [v:] Lesya Ukrayinka i suchasnistʹ. Zbirnyk naukovykh pratsʹ, t. 4, kn. 1, Lutsʹk 2007.
Kubacki W., O dramatach Łesi Ukrainki, [w:] Łesia Ukrainka. Kasandra i inne dramaty, Kraków 1982.
Mishchenko L., Lesya Ukrayinka v literaturnomu zhytti, Kyyiv 1964.
Moklytsya M., Estetyka Lesi Ukrayinky. (Kontekst yevropeysʹkoho modernizmu). Monohrafiya, Lutsʹk 2011.
Radyshevsʹkyy R., Iskry yednannya: do pytannya pro internatsionalʹni motyvy tvorchosti Lesi Ukrayinky, Kyyiv 1983.
Ukrayinka Lesya, Zibrannya tvoriv u 12 t., Kyyiv 1975‑1979.
Yakovenko S., Romantyky, estety, nitssheantsi. Ukrayinsʹka ta polʹsʹka literaturna krytyka rannʹoho modernizmu, Kyyiv 2006.
Yakubsʹkyy B., Lesya Ukrayinka yak literaturnyy krytyk, [v:] Lesya Ukrayinka, Tvory u 12‑tomakh, Kyyiv 1930, t. 12.
Go to article

Authors and Affiliations

Rostysław Radyszewśkyi
1
ORCID: ORCID

  1. Kijowski Uniwersytet Narodowy im. Tarasa Szewczenki
Download PDF Download RIS Download Bibtex

Abstract

The paper presents a photographic analysis of the break-up of gas bubbles flowing out of the outlets of a self-aspirating disk impeller. It was found that bubbles detached from the interfacial surface most often disintegrate to form several daughter bubbles. Further in the work, the population balance model was verified for several formulas describing the bubble break-up rate. It has been found that a good fit to the experimental data is provided by the formula given by Laakkonen for 5 daughter bubbles. The possibility of using the Monte Carlo method to model the bubble break-up processwas also determined. For this method, a good agreement of results was achieved for the division into a maximum of 10 daughter bubbles. In the case of this method it was also found necessary to use the function of break-up frequency at a higher rate for smaller bubbles.

Go to article

Authors and Affiliations

Jacek Stelmach
ORCID: ORCID
Radosław Musowski
Download PDF Download RIS Download Bibtex

Abstract

Modelling of titanium dioxide deagglomeration in the mixing tank equipped with a high shear impeller is presented in this study. A combination of computational fluid dynamics with population balance was applied for prediction of the final particle size. Two approaches are presented to solve population balance equations. In the first one, a complete population balance breakage kinetics were implemented in the CFD code to simulate size changes in every numerical cell in the computational domain. The second approach uses flow field and properties of turbulence to construct a mechanistic model of suspension flow in the system. Such approach can be considered as an attractive alternative to CFD simulations, because it allows to greatly reduce time required to obtain the results, i.e., the final particle size distribution of the product. Based on experiments shattering breakage mechanism was identified. A comparison of the mechanistic model and full CFD does not deviate from each other. Therefore the application of a much faster mechanistic model has comparable accuracy with full CFD. The model of particle deagglomeration does not predict a very fast initial drop of particle size, observed in the experiment, but it can predict, with acceptable accuracy, the final particle size of the product.
Go to article

Bibliography

Atiemo-Obeng V.A., Calabrese R.V., 2004. Rotor–stator mixing devices, In: Paul E.L., Atiemo-Obeng V.A., Kresta S.M. (Eds.), Handbook of industrial mixing. DOI: 10.1002/0471451452.ch8.

Bałdyga J., Makowski Ł., OrciuchW., Sauter C., Schuchmann H.P., 2008a. Deagglomeration processes in high-shear devices. Chem. Eng. Res. Des., 86, 1369–1381. DOI: 10.1016/j.cherd.2008.08.016.

Bałdyga J., Orciuch W., Makowski Ł., Malik K., Özcan-Taskin G., Eagles W., Padron G., 2008b. Dispersion of nanoparticle clusters in a rotor-stator mixer. Ind. Eng. Chem. Res., 47, 3652–3663. DOI: 10.1021/ie070899u.

Bałdyga J., Orciuch W., Makowski Ł., Malski-Brodzicki M., Malik K., 2007. Break up of nano-particle clusters in high-shear devices. Chem. Eng. Process. Process Intensif., 46, 851–861. DOI: 10.1016/j.cep.2007.05.016.

Boverhof D.R., Bramante C.M., Butala J.H., Clancy S.F., LafranconiW.M.,West J., Gordon S.C., 2015. Comparative assessment of nanomaterial definitions and safety evaluation considerations. Regul. Toxicol. Pharm., 73, 137–150. DOI: 10.1016/j.yrtph.2015.06.001.

Chung C.J., Lin H.I., Tsou H.K., Shi Z.Y., He J.L., 2008. An antimicrobial TiO2 coating for reducing hospitalacquired infection. J. Biomed. Mater. Res. Part B, 85b, 220–224. DOI: 10.1002/jbm.b.30939.

Fujishima A., Rao T.N., Tryk D.A., 2000. Titanium dioxide photocatalysis. J. Photochem. Photobiol., C, 1, 1–21. DOI: 10.1016/S1389-5567(00)00002-2.

Gajovic A., Stubicar M., Ivanda M., Furi K., 2001. Raman spectroscopy of ball-milled TiO2. J. Mol. Struct., 563–564, 315–320. DOI: 10.1016/S0022-2860(00)00790-0.

Gavi E., Kubicki D., Padron G.A., Özcan-Taskın N.G., 2018. Breakup of nanoparticle clusters using Microfluidizer M110-P. Chem. Eng. Res. Des., 132, 902–912. DOI: 10.1016/j.cherd.2018.01.011.

Gázquez M.J., Bolívar J.P., Garcia-Tenorio R., Vaca F., 2014. A review of the production cycle of titanium dioxide pigment. Mater. Sci. Appl., 5, 441–458. DOI: 10.4236/msa.2014.57048.

Hansen S., Khakhar D.V., Ottino J.M., 1998. Dispersion of solids in nonhomogeneous viscous flows. Chem. Eng. Sci., 53, 1803–1817. DOI: 10.1016/S0009-2509(98)00010-4.

Hass G., 1952. Preparation, properties and optical applications of thin films of titanium dioxide. Vacuum, 2, 331–345. DOI: 10.1016/0042-207X(52)93783-4.

Kamaly S.W., Tarleton A.C., Özcan-Taskın N.G., 2017. Dispersion of clusters of nanoscale silica particles using batch rotor-stators. Adv. Powder Technol., 28, 2357–2365. DOI: 10.1016/j.apt.2017.06.017.

Krzosa R., Makowski Ł., OrciuchW., Adamek R., 2021. Population balance application in TiO2 particle deagglomeration process modeling. Energies, 14, 3523. DOI: 10.3390/en14123523.

Mandzy N., Grulke E., Druffel T., 2005. Breakage of TiO2 agglomerates in electrostatically stabilized aqueous dispersions. Powder Technol., 160, 121–126. DOI: 10.1016/j.powtec.2005.08.020.

Marchisio D.L., Fox R.O., 2005. Solution of population balance equations using the direct quadrature method of moments. J. Aerosol Sci., 36, 43–73. DOI: 10.1016/j.jaerosci.2004.07.009.

Marchisio D.L., Vigil R.D., Fox R.O., 2003. Quadrature method of moments for aggregation-breakage processes. J. Colloid Interface Sci., 258, 322–334. DOI: 10.1016/S0021-9797(02)00054-1.

Martínez-de Jesús G., Ramírez-Munoz J., García-Cortés D., Cota L.G., 2018. Computational fluid dynamics study of flow induced by a grooved high-shear impeller in an unbaffled tank. Chem. Eng. Technol., 41, 580–589. DOI: 10.1002/ceat.201700091.

McGraw R., 1997. Description of aerosol dynamics by the quadrature method of moments. Aerosol Sci. Technol., 27, 255–265. DOI: 10.1080/02786829708965471.

Meacock G., Taylor K.D.A., Knowles M.J., Himonides A., 1997. The improved whitening of minced cod flesh using dispersed titanium dioxide. J. Sci. Food Agric., 73, 221–225. DOI: 10.1002/(SICI)1097-0010(199702)73:2221::AID-JSFA708>3.0.CO;2-U.

Middlemas S., Fang Z.Z., Fan P., 2015. Life cycle assessment comparison of emerging and traditional Titanium dioxide manufacturing processes. J. Clean. Prod., 89, 137–147. DOI: 10.1016/j.jclepro.2014.11.019.

Mikulášek P., Wakeman R.J., Marchant J.Q., 1997. The influence of pH and temperature on the rheology and stability of aqueous titanium dioxide dispersions. Chem. Eng. J., 67, 97–102. DOI: 10.1016/S1385-8947(97)00026-0.

Özcan-Taskin N.G., Padron G., Voelkel A., 2009. Effect of particle type on the mechanisms of break up of nanoscale particle clusters. Chem. Eng. Res. Des., 87, 468–473. DOI: 10.1016/j.cherd.2008.12.012.

Özcan-Taskın N.G., Padron G.A., Kubicki D., 2016. Comparative performance of in-line rotor-stators for deagglomeration processes. Chem. Eng. Sci., 156, 186–196. DOI: 10.1016/j.ces.2016.09.023.

Randolph A.D., Larson M.A., 1962. Transient and steady state size distributions in continuous mixed suspension crystallizers. AIChE J., 8, 639–645. DOI: 10.1002/aic.690080515.

Reck E., Richards M., 1999. TiO2 manufacture and life cycle analysis. Pigm. Resin Technol., 28, 149–157. DOI: 10.1108/03699429910271297.

Rodgers T.L., Cooke M., Siperstein F.R., Kowalski A., 2009. Mixing and dissolution times for a cowles disk agitator in large-scale emulsion preparation. Ind. Eng. Chem. Res., 48, 6859–6868. DOI: 10.1021/ie900286s.

Sen S., Ram M.L., Roy S., Sarkar B.K., 1999. The structural transformation of anatase TiO2 by high-energy vibrational ball milling. J. Mater. Res., 14, 841–848. DOI: 10.1557/JMR.1999.0112.

Shamlou P.A., Titchener-Hooker N., 1993. Turbulent aggregation and breakup of particles in liquids in stirred vessels, In: Shamlou P.A. (Ed.), Processing of Solid–Liquid Suspensions. Butterworth-Heinemann Ltd. 1–25. DOI: 10.1016/b978-0-7506-1134-3.50005-3.

Tang S., Ma Y., Shiu C., 2001. Modelling the mechanical strength of fractal aggregates. Colloids Surf., A, 180, 7–16. DOI: 10.1016/S0927-7757(00)00743-3.

Unadkat H., Rielly C.D., Nagy Z.K., 2011. PIV study of the flow field generated by a sawtooth impeller. Chem. Eng. Sci., 66, 5374–5387. DOI: 10.1016/j.ces.2011.07.046.

Weir A., Westerhoff P., Fabricius L., Hristovski K., Von Goetz N., 2012. Titanium dioxide nanoparticles in food and personal care products. Environ. Sci. Technol., 46, 2242–2250. DOI: 10.1021/es204168d.

Xie L., Rielly C.D., Eagles W., Özcan-Taskin G., 2007. Dispersion of nano-particle clusters using mixed flow and high shear impellers in stirred tanks. Chem. Eng. Res. Des., 85, 676–684. DOI: 10.1205/cherd06195.

Xie L., Rielly C.D., Özcan-Taskin G., 2008. Break-Up of nanoparticle agglomerates by hydrodynamically limited processes. J. Dispers. Sci. Technol., 29, 573–579. DOI: 10.1080/01932690701729211.

Yang H.G., Li C.Z., Gu H.C., Fang T.N., 2001. Rheological behavior of titanium dioxide suspensions. J. Colloid Interface Sci., 236, 96–103. DOI: 10.1006/jcis.2000.7373.

Yu J., Zhao X., Zhao Q.,Wang G., 2001. Preparation and characterization of super-hydrophilic porous TiO2 coating films. Mater. Chem. Phys., 68, 253–259 DOI: 10.1016/S0254-0584(00)00364-3.

Zhang J., Xu S., Li W., 2012. High shear mixers: A review of typical applications and studies on power draw, flow pattern, energy dissipation and transfer properties. Chem. Eng. Process., 57–58, 25–41. DOI: 10.1016/j.cep.2012.04.004.
Go to article

Authors and Affiliations

Radosław Krzosa
1
Krzysztof Wojtas
1
Jakub Golec
1
Łukasz Makowski
1
Wojciech Orciuch
1
Radosław Adamek
2

  1. Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul.Warynskiego 1, 00-645 Warsaw, Poland
  2. ICHEMAD–Profarb, ul. Chorzowska 117, 44–100 Gliwice, Poland
Download PDF Download RIS Download Bibtex

Abstract

In this paper aggregation of small solid particles in the perikinetic and orthokinetic regimes is considered. An aggregation kernel for colloidal particles is determined by solving the convection-diffusion equation for the pair probability function of the solid particles subject to simple shear and extensional flow patterns and DLVO potential field. Using the solution of the full model the applicability regions of simplified collision kernels from the literature are recognized and verified for a wide range of Péclet numbers. In the stable colloidal systems the assumption which considers only the flow pattern in a certain boundary layer around central particle results in a reasonable accuracy of the particle collision rate. However, when the influence of convective motion becomes more significant one should take into account the full flow field in a more rigorous manner and solve the convection-diffusion equation directly. Finally, the influence of flow pattern and process parameters on aggregation rate is discussed.
Go to article

Authors and Affiliations

Grzegorz Tyl
1
Juliusz Kondracki
2
Magdalena Jasińska
1

  1. Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Warynskiego 1, 00-645 Warsaw, Poland
  2. Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Download PDF Download RIS Download Bibtex

Abstract

The work concerns numerical simulations of a cone mill used for emulsion preparation. Hydrodynamics, power consumption and population balance are investigated for various operating conditions at high phase volume emulsions and for different rheologies. Cone mills are usually simplified as a simple gap between rotor and stator but by increasing the complexity of the geometry till it represents the commercial device identifies a wealth of additional features such as recirculation zones above (which enhance breakage) and below (which allow for coalescence) the rotor-stator gap. Two separate sets of population balance modelling constants are required to capture all the experiment results – even with the most complex geometries. Some suggestions are made for improvements and further studies will consider other rotor-stator devices.
Go to article

Authors and Affiliations

Guido Lupieri
1
Ioannis Bagkeris
1
Jo J.M. Janssen
2
Adam J. Kowalski
1

  1. Unilever R&D, Port Sunlight Laboratory, Quarry Road East, Bebington, Wirral CH63 3JW, UK
  2. Unilever Foods Innovation Centre, Bronland 14, 6708WH Wageningen, The Nederlands
Download PDF Download RIS Download Bibtex

Abstract

One of the major conflicts between populist and non-populist forces (movements, parties, governments) as well as the European Union (EU) institutions has manifested in the area of immigration policy. This article investigates how the influx of migrants in 2015-2016 was subsequently used by populists as a policy conflict ground within the EU. In this context, it particularly looks at how the problem of migration was framed and map the policy responses in the selected EU Member States. The article covers the 2015-2018 period and includes the following countries: France, Germany, Greece, Italy, Hungary, and Poland.
The article observes that the 2015-2016 migration crisis and the response to it led to (or reinvigorated existing) politicisation of the topic across the EU, forcing the parties from all sides of the political spectrum to take a position on it. Simultaneously, one may also observe a process of securitisation of migration in the political debate in all analysed countries. Irregular migration was construed as a security threat by many political parties and leaders, requiring emergency measures and justifying actions outside the normal bounds of political and legal procedures. While the securitisation strategy was most visible in the discourse of the right-wing populist parties, its elements were progressively taken by the mainstream parties, arguably in response to increased salience of the issue.
The article also finds a correlation between the ideological profile of the parties and their approach to the migration crisis and the proposed EU response. All the parties located close to the right extreme tended to take a strong anti-immigration and anti-EU stance. All of them also ranked high in the populist index. On the other hand, the populist parties located on the left side or in the centre of the political spectrum took a moderate stance on this issue.
Go to article

Authors and Affiliations

Łukasz Gruszczyński
1 2
ORCID: ORCID
Réka Friedery
2
ORCID: ORCID

  1. Kozminski University (Poland)
  2. HUN-REN Centre for Social Sciences, MTA Centre of Excellence (Hungary)
Download PDF Download RIS Download Bibtex

Abstract

Habitat fragmentation is one of serious threats to biodiversity of nature in today's world. The present study of a typical steppe species Iris pumila L. (Iridaceae) has analyzed the impacts of geographical isolation and population size on genetic diversity and population structure in conditions of habitat fragmentation. The key indices of population genetic variability calculated from the ISSR markers data were on average as follows: Shannon diversity index (S) – 0.188; unbiased Nei’s gene diversity (He) – 0.123; and the average measure of Jaccard’s genetic distances between individuals within populations – 58.4%. Although the largest population had significantly higher values of S and He, the small and marginal populations also showed a comparable level of variation. Most of the genetic variation of I. pumila was distributed within the populations. A strong correlation was found between Nei’s genetic distances and geographic distances between the populations. According to the Bayesian analysis, genetic structure of the populations was highly homogeneous; however, the presence of admixed genotypes indicated the possibility of gene flow between the populations at present.

Go to article

Authors and Affiliations

Olena Bublyk
Igor Andreev
ORCID: ORCID
Ivan Parnikoza
ORCID: ORCID
Viktor Kunakh
ORCID: ORCID
Download PDF Download RIS Download Bibtex

Abstract

Four Ostracoda species belonging to one family, Halocyprididae, were found in plankton material collected from the Scotia Sea and off the King George Island (the Antarctic) during the austral summer 1988/1989. Alacia belgicae, A. hettacra and Metaconchoecia isocheira were dominant making up to nearly 99% of all Ostracoda. The horizontal distribution was modified by variability of hydrological conditions. The higher concentrations of chlorophyll a and phytoplankton, which were found in the mid- and eastern parts of the Scotia Sea, coincided with the highest densities of Ostracoda. The influence of ice pack presence in the Scotia Sea upon the higher abundance of Ostracoda in the period investigated in comparison with the earlier studies was distinctive. A vertical distribution analysis confirmed that the three above-mentioned endemic species were most abundant in the mesopelagial. The population structures of A. belgicae, A. hettacra, and M. isocheira were analysed. The presence of the youngest stage of A. belgicae in the Scotia Sea confirmed the beginning of reproduction of this species at that time. The vertical distribution patterns of A. hettacra and M. isocheira populations were similar, although their age structures in comparison with A. belgicae differ significantly. This was consistent with their higher “mean population stage” values.

Go to article

Authors and Affiliations

Katarzyna Błachowiak-Samołyk
Andrzej Osowiecki
Download PDF Download RIS Download Bibtex

Abstract

Recent years have witnessed the publication of a number of research papers and books seeking to assess threats of electoral victories of anti-establishment politicians and political parties, described as authoritarian populists. This essay focuses on three books directly addressing the origins and threats of authoritarian populism to democracy. It consists of six sections and the conclusion. The first section presents findings (Norris and Inglehart) based on surveys of values of voters of various age cohorts concluding that authoritarian populism is a temporary backlash provoked by the post-materialist perspective. The second section examines the contention, spelled out in Levitsky and Ziblatt, that increase in openness of American political system produced, unintentionally, a degradation of the American political system. The third section continues brief presentations focusing on to the causes and implications of “illiberal democracy,” and “undemocratic liberalism” (Mounk). The fourth section examines developments in the quality of democracy in the world showing that despite the decline in Democracy Indices, overall there was no slide towards non-democratic forms of government in 2006–2019. The next two sections deal with dimensions missing in reviewed books; the notion of nation-state, international environment, civic culture and, in particular, dangers of radical egalitarianism to democracy. The last section concludes with regrets that the authors ignored rich literature on fragility of democracy and failed to incorporate in their analyses deeper structural factors eroding democracy: by the same token, return to the pre-populist shock trajectory is unlikely to assure survival of liberal democracy.

Go to article

Authors and Affiliations

Antoni Z. Kamiński
Bartłomiej K. Kamiński

This page uses 'cookies'. Learn more