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2008 No. 50 (4) 577-585
EN In an in situ experiment we evaluated the growth of the red algae Furcellaria lumbricalis and Coccotylus truncatus in the Archipelago Sea. The results showed that the growth rates of both species were similar but that growth decreased with increasing algal coverage. The effects were more pronounced [...]
Journal of Ecological Engineering
2016 Vol. 17, nr 3 169--174
EN The study was focused on the impact of an extract of Ecklonia maxima on selected morphological features of yellow pine (Pinus ponderosa Dougl. ex C. Lawson), prickly spruce (Picea pungens Engelm.) Variety Glauca, thuja (Thuja occidentalis) variety Smaragd. The experiment was established in April 12,[...]
Polish Journal of Ecology
EN The relations between Photosynthetic photon flux density (PPFD) and both the number of silver fir (Abies alba) seedlings per unit area and their height growth were investigated. The study was carried out in the Sudety Mts (SW Poland, 50°28' N, 16°19' E), in a forest stand dominated by spruce (Picea [...]
Infrastruktura i Ekologia Terenów Wiejskich
2017 nr II/2 793--802
EN Biochar can get from every biomass material and carbonization of the total mass of organisms. Determining the most suitable dose of the biochar to increase nutrient concentrations of pepper and also determine whether used with chemical fertilizers or not was the aim of the study. In this study, bioc[...]
Fasciculi Mathematici
2017 Nr 59 159--168
EN We study the growth of the transcendental meromorphic solution f(z) of the linear difference equation: [formula] where q(z), p0(z), . . ., pn(z) (n ≥ 1) are polynomials such that p0(z)pn(z) ≠ 0, and obtain some necessary conditions guaranteeing that the or[...]
Zeszyty Naukowe Politechniki Białostockiej. Ekonomia i Zarządzanie
2005 Z. 10 267-276
PL Badano wzrost siewek 20 odmian jęczmienia jarego rosnącego w komorze fitotronowej w warunkach stałych i zmiennych. Dla obu rodzajów warunków suma godzinowych temperatur wynosiła 432oC, a dobowa suma PAR wynosiła 15,12 mol fotonów x m-2, natomiast rozkład temperatur i intensywność PAR w ciągu doby by[...]
EN Growth of 20 cultivars of spring barley in growth chambers (where constant and changing conditions were established) was studied. For both kinds of conditions sum of temperature was 432oC, and sum of PAR was 15,12 mol photons x m-2, but their pattern during the day was different It was found that ap[...]
Bulletin of the Polish Academy of Sciences. Technical Sciences
EN Evolutionary solid bodies undergoing changes of mass, of properties, and of shapes are considered in models of growth and adaptation and similarily in structural optimisation. A fundamental separation of different growth phenomena and a subsequent parametrisation using independent design variables f[...]
2003 No. 45 (4) 679-692
EN It is well known that a deficiency of iron, a trace element essential to every living organism, limits the growth of algae and cyanobacteria. Nodularia spumigena Mertens is a blue-green algae species inhabiting the Baltic region that often forms toxic blooms. The aim of the study was to assess t[...]
Oceanological Studies
EN The effect of different concentrations of heavy metal ions Hg+2, Cd+2, Zn+2, Cu+2 on growth and respiratory activity of neustonic and planktonic bacteria derived from the Deep of Gdańsk was studied. The laboratory experiments demonstrated that all heavy metals examined exhibited toxic effects on the[...]
Polish Journal of Ecology
EN Soil nematodes Cephalobus persegnis (Bastian 1865) originating from a laboratory culture maintained at 20 stopni C cultured for three successive generations at 15 stopni C, 21 stopni C, or 15/21 stopni C for 12 hours in each temperature. Transfer of the nematodes to 15 stopni C markedly depressed th[...]
Aparatura Badawcza i Dydaktyczna
2010 T. 15, nr 2 125-136
PL W latach 1975-1981 prowadzono wolierową hodowlę cietrzewia. Do założenia hodowli użyto jaj pozyskanych w naturze, w północno-wschodniej Polsce. Następnie używano jaj z hodowli własnej (potomnych). W hodowli badano wzrost i rozwój osobników w ciągu całego życia - od wyklucia aż do śmierci. Tempo wzro[...]
EN The aviary breeding programme for black grouse was carried out between 1975 and 1981. This species was reared from egg to adult from eggs collected in nature in north-east Poland. Subsequently, the eggs laid in the breed (descendant eggs) were used. The study carried out on the breed focused on the [...]
Infrastruktura i Ekologia Terenów Wiejskich
2017 nr II/1 567--576
EN The aim of the research conducted in the conditions of Lower Silesia in the years 2012-2016 was to evaluate the growth and yielding of young peach trees cultivated in ridges with drip irrigation. The experiment concerned the flat-fruit peach trees, cultivar Saturn on the Manchurian peach tree seedli[...]
Oceanological and Hydrobiological Studies
2015 Vol. 44, No. 3 343--351
EN Effects of marine aluminum (Al) on phytoplankton are controversial, making it important to elucidate the mechanisms underlying Al effects. This study was aimed at identifying the effects of Al on the growth, chlorophyll a (chl a) content and the antioxidant mechanism of cyanobacteria Synechococcus s[...]
Materials Science Poland
2018 Vol. 36, No. 3 501--508
EN Self-assembled Zn/ZnO microspheres have been accomplished on selected sites of boron doped P-type silicon substrates using hydrothermal approach. The high density Zn/ZnO microspheres were grown on the Si substrates by chemical treatment in mixed solution of zinc sulfate ZnSO4·7H2
EN Titanium-doped SrAl0.5Ta0.5O3: LaAlO3 (SAT:LA) perovskite solid solution single crystals were grown by the Czochralski method for two Ti concentrations: 1 wt.% (LSAT1) and 2 wt.% (LSAT2). It was stated that incorporation of Ti into SAT:LA crystal takes place in a non-uniform way. Ti3+ ions enter the[...]
Zeszyty Naukowe Akademii Marynarki Wojennej
PL W opracowaniu przedstawiono problematykę możliwości oddziaływania państwa na długotrwały wzrost gospodarczy w realiach polskiej transformacji. Wskazano na koniunkturalny cykl polityczny jako istotny element zakłócający pragmatykę działań ekonomicznych. Na tle wybranych koncepcji polityki pobudzania [...]
EN The paper presents the most revelant metod of creation long term economic growth stimulation policy in Polish transformation reality (1990-2000). Political cycle of prosperity is pointed as an important element, which has its own influence on economic growth policy conceptions some factors of balan[...]
Oceanological and Hydrobiological Studies
EN The research presented here was conducted in order to determine the influence of exogenous traumatic acid (TA) on the growth, metabolism, and antioxidative activity of vascular water plant, Wolffia arrhiza Wimm. The research was concerned with TA influences, in concentrations of 10^-8 M – 10^-4 M, o[...]
Oceanological Studies
EN Two species of blue-green algae have been studied under laboratory conditions in several combinations of salinity (0, 8, 16, 24 PSU), light (20, 70, 120, 170 μE m^-2 s^-1) and temperature (20, 25, 30, 35 °C). Temperature within the range of 30-35 °C and light intensity of 170 μE m^-2 s^-1 were[...]
Polish Journal of Chemistry
EN In the present study, reaction crystallization of silver micron and nanoparticles was studied in a batch crystallizer in two different set of experiments by reducing silver in the presence or absence of sodium citrate. From the experimental determination of crystalsize distribution, and with the aid[...]
Biuletyn Urzędu Regulacji Energetyki
2001 nr 5 13-15
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