Polski Współczynnik Wpływu a kultury cytowań w humanistyce

The article discusses the formula for a new Polish bibliometric indicator, i.e., the Polish Impact Factor (Polski Współczynnik Wpływu) from the point of view of the humanities. Our study examines two prestigious Polish humanities journals (Pamiętnik Literacki and Diametros – An Online Journal of Philosophy) to evaluate the underlying assumptions of the Polish Impact Factor. We have analyzed all articles published from 2004 to 2014 (N = 850, N = 555, respectively) and all references included in these articles (N = 21,805, N = 8,298, respectively). When interpreting the findings, we have assumed that different groups of sciences are characterized by different citation cultures. Our findings show that the formula for the Polish Impact Factor does not take into account the most cited sources in the humanities, i.e., books and chapters. Moreover, many citations will not be included in the formula because of the citation age: the formula for the Polish Impact Factor is provided for the citations whose age is not higher than 5 years. We have analyzed the citation age of all citations and used Price’s Index to interpret the result. We have found out that most of citations are older than 5 years (84,2 percent and 73,2 percent, respectively). Our analysis shows that the Polish Impact Factor is not an adequate tool for a bibliometric evaluation of the journals in the humanities in Poland. The article concludes with a discussion of how the Polish Impact Factor could be improved.

Comparison of growth traits between abundant and uncommon forms of a non-native vine, Dolichandra unguis-cati (Bignoniaceae) in Australia

Cat’s claw creeper vine, Dolichandra unguis-cati (L.) Lohmann (syn. Macfadyena unguis-cati (L.) Gentry) (Bignoniaceae), is a major environmental weed in Australia. Two distinct forms of this weed (‘long’ and ‘short’ pod), with differences in leaf morphology and fruit size, occur in Australia. The long pod form has only been reported in less than fifteen localities in the whole of south-east Queensland, while the short pod form is widely distributed in Queensland and New South Wales. This study sought to compare growth traits such as specific leaf area, relative growth rate, stem length, shoot/root ratio, tuber biomass and branching architecture between these forms. These traits were monitored under glasshouse conditions over a period of 18 months. Short pod exhibited higher values of relative growth rates, stem length, number of tubers and specific leaf area than long pod, but only after 10 months of plant growth. Prior to this, long and short pod did not differ significantly. Higher values for these traits have been described as characteristics of successful colonizers. Results from this study could partly explain why the short pod form is more widely distributed in Australia while long pod is confined to a few localities.

Mechanizmy wybiórczości środowiskowej u świstunki leśnej Phylloscopus sibilatrix

Wydział Biologii

Wokół składni „Rozmyślań dominikańskich”

Wydział Filologii Polskiej i Klasycznej

Fenologia kwitnienia i produkcja pyłku w zróżnicowanych warunkach mikroklimatycznych dużego miasta oraz ich wpływ na przebieg sezonu pyłkowego brzozy (Betula spp.) i bylicy (Artemisia spp.) w Poznaniu

Wydział Biologii: Instytut Biologii Środowiska, Pracownia Aeropalinologii

Muzyka i muzyczność prozy japońskiej okresu Heian (794-1192)

Wydział Neofilologii: Katedra Orientalistyki

Thrips incidence in green beans and the degree of damage caused

Green bean production accounts for 2.4% of the total value of Australian vegetable production and was Australia's tenth largest vegetable crop in 2008-2009 by value. Australian green bean production is concentrated in Queensland (51%) and Tasmania (34%) where lost productivity as a direct result of insect damage is recognised as a key threat to the industry (AUSVEG, 2011). Green beans attract a wide range of insect pests, with thrips causing the most damage to the harvestable product, the pod. Thrips populations were monitored in green bean crops in the Gatton Research Facility, Lockyer Valley, South-east Queensland, Australia from 2002-2011. Field trials were conducted to identify the thrips species present, to record fluctuation in abundance during the season and assess pod damage as a direct result of thrips. Thirteen species of thrips were recorded during this time on bean plantings, with six dominant species being collected during most of the growing season: Frankliniella occidentalis, F. schultzei, Megalurothrips usitatus, Pseudanaphothrips achaetus, Thrips imaginis and T. tabaci. Thrips numbers ranged from less than one thrips per flower to as high as 5.39 thrips per flower. The highest incidence of thrips presence found in October/November 2008, resulted in 10.74% unmarketable pods due to thrips damage, while the lowest number of thrips recorded in April 2008 caused a productivity loss of 36.65% of pods as a result of thrips damage.

Efeito da densidade de sementeira nos componentes de rendimento do tremoço branco (Lupinus albus L.)

O tremoço branco (Lupinus albus L.) é utilizado na alimentação animal e humana. Com este trabalho pretendeu-se avaliar o efeito de duas densidades de sementeira (20 e 40 sementes/m2, respectivamente) na produtividade e nos componentes do rendimento de um ecótipo de tremoço branco. O campo experimental foi instalado na Quinta do Galinheiro (ESAS) Santarém, de acordo com um delineamento experimental em parcelas totalmente aleatórias, com 4 repetições. Foram efetuadas observações bissemanais do desenvolvimento e crescimento através da amostragem aleatória de 8 plantas em cada um dos tratamentos (número de folhas, ramificações e vagens por planta; número médio de grãos por vagem e por planta; peso seco de cada componente e o total da planta; peso de 1000 grãos e teor de proteína do grão). Observaram-se perdas importantes de plantas entre a sementeira e a emergência. O maior crescimento e produtividade individual das plantas na menor densidade, relativamente à maior, justificaram os valores muito aproximados verificados entre os dois tratamentos quando são consideradas as variáveis por unidade de área. Os teores de proteína e calibre do grão foram também idênticos nos dois tratamentos. Confirma-se assim a elevada capacidade da planta em se adaptar a diferentes densidades.

Filmowe interpretacje polskiej transformacji gospodarczej. Kulturowe spory o obraz Polski

Wydział Nauk Społecznych: Instytut Kulturoznawstwa

Bacterial translocation in rats nonfunctioning diverted distal colon

To investigate whether the alterations of the diverted colon segment mucosa, evidenced in fecal colitis, would be able to alter Bacterial Translocation (BT). Methods: Sixty-two Wistar male rats ranging from 220 to 320 grams of weight, were divided in two groups: A (Colostomy) and B (Control), with 31 animals each one. In group A, all animals underwent end colostomy, one stoma, in ascending colon; and in the 70th POD was injected in five rats, by rectal route – diverted segment - 2ml of a 0.9% saline solution in animals (A1 subgroup); in eight it was inoculated, by rectal route, 2ml of a solution containing Escherichia coli ATCC 25922 (American Type Culture Collection), in a concentration of 108 Colony Forming Unit for milliliters (CFU/ml) - A2 Subgroup; in ten animals the same solution of E. coli was inoculated, in a concentration of 1011 CFU/ml (A3 Subgroup); and in eight it was collected part of the mucus found in the diverted distal colonic segment for neutral sugars and total proteins dosage (A4 subgroup). The animals from the group B underwent the same procedures of group A, but with differences in the colostomy confection. In rats from subgroups A1, A2, A3, B1, B2, and B3 2ml of blood were aspirated from the heart, and fragments from mesenteric lymphatic nodule, liver, spleen, lung and kidney taken for microbiological analysis, after their death. This analysis consisted of evidencing the presence of E. coli ATCC 25922 CFU. Mann-Whitney and ANOVA Tests were applied as analytic techniques for association of variables. Results: The occurrence of BT was evidenced only in those animals in which inoculated concentration of E. coli ATCC 25922, reached levels of 1011CFU/ml, i.e. in Subgroups A3 and B3, although, being significantly greater (80%) in those animals without colostomy (subgroup B3) when compared to the ones with colostomy (20%) from the subgroup A3 (P <0.05). Lung, liver and mesenteric lymphatic nodules were the tissues with larger percentile of bacterial recovery, so much in subgroup A3, as in B3. Blood culture was considered positive in 60% of the animals from subgroup B3 and in 10% of those from subgroup A3 (p <0.05). There was greater concentration of neutral sugars, in subgroup A4 - mean 27.3mg/ml -, than in subgroup B4 - mean 8.4mg/ml - (P <0.05). Conclusion: The modifications in the architecture of intestinal mucosa in colitis following fecal diversion can cause alterations in the intestinal barrier, but it does not necessarily lead to an increased frequency of BT

Synteza, modyfikacja powierzchni i charakterystyka fizykochemiczna wielofunkcyjnych nanomateriałów luminescencyjnych zawierających jony pierwiastków ziem rzadkich

Wydział Chemii: Zakład Ziem Rzadkich

Główne determinanty polityki bezpieczeństwa Izraela na początku XXI wieku

Wydział Nauk Politycznych i Dziennikarstwa

Авторское право в Польше в свете изменений - причины и следствия (w: Медиа в современном мире. Молодые исследователи: материалы 15-й международной конференции студентов, магистрантов и аспирантов)

Cała publikacja została udostępniona pod adresem: http://jf.spbu.ru/upload/files/file_1457112172_9309.pdf

Studies of turbulent flows in continuous casting of steel with and without magnetic field

This thesis develops and tests various transient and steady-state computational models such as direct numerical simulation (DNS), large eddy simulation (LES), filtered unsteady Reynolds-averaged Navier-Stokes (URANS) and steady Reynolds-averaged Navier-Stokes (RANS) with and without magnetic field to investigate turbulent flows in canonical as well as in the nozzle and mold geometries of the continuous casting process. The direct numerical simulations are first performed in channel, square and 2:1 aspect rectangular ducts to investigate the effect of magnetic field on turbulent flows. The rectangular duct is a more practical geometry for continuous casting nozzle and mold and has the option of applying magnetic field either perpendicular to broader side or shorter side. This work forms the part of a graphic processing unit (GPU) based CFD code (CU-FLOW) development for magnetohydrodynamic (MHD) turbulent flows. The DNS results revealed interesting effects of the magnetic field and its orientation on primary, secondary flows (instantaneous and mean), Reynolds stresses, turbulent kinetic energy (TKE) budgets, momentum budgets and frictional losses, besides providing DNS database for two-wall bounded square and rectangular duct MHD turbulent flows. Further, the low- and high-Reynolds number RANS models (k-ε and Reynolds stress models) are developed and tested with DNS databases for channel and square duct flows with and without magnetic field. The MHD sink terms in k- and ε-equations are implemented as proposed by Kenjereš and Hanjalić using a user defined function (UDF) in FLUENT. This work revealed varying accuracies of different RANS models at different levels. This work is useful for industry to understand the accuracies of these models, including continuous casting. After realizing the accuracy and computational cost of RANS models, the steady-state k-ε model is then combined with the particle image velocimetry (PIV) and impeller probe velocity measurements in a 1/3rd scale water model to study the flow quality coming out of the well- and mountain-bottom nozzles and the effect of stopper-rod misalignment on fluid flow. The mountain-bottom nozzle was found more prone to the longtime asymmetries and higher surface velocities. The left misalignment of stopper gave higher surface velocity on the right leading to significantly large number of vortices forming behind the nozzle on the left. Later, the transient and steady-state models such as LES, filtered URANS and steady RANS models are combined with ultrasonic Doppler velocimetry (UDV) measurements in a GaInSn model of typical continuous casting process. LES-CU-LOW is the fastest and the most accurate model owing to much finer mesh and a smaller timestep. This work provided a good understanding on the performance of these models. The behavior of instantaneous flows, Reynolds stresses and proper orthogonal decomposition (POD) analysis quantified the nozzle bottom swirl and its importance on the turbulent flow in the mold. Afterwards, the aforementioned work in GaInSn model is extended with electromagnetic braking (EMBr) to help optimize a ruler-type brake and its location for the continuous casting process. The magnetic field suppressed turbulence and promoted vortical structures with their axis aligned with the magnetic field suggesting tendency towards 2-d turbulence. The stronger magnetic field at the nozzle well and around the jet region created large scale and lower frequency flow behavior by suppressing nozzle bottom swirl and its front-back alternation. Based on this work, it is advised to avoid stronger magnetic field around jet and nozzle bottom to get more stable and less defect prone flow.

Media społecznościowe a możliwości integracji

Artykul dostepny na http://www.marketingirynek.pl/archiwum/marketing_i_rynek_nr_11_2014,p1525939542