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    Tytuł:
    Tendencje i zmienność hurtowych i detalicznych cen jabłek na rynku warszawskim
    Tendencies and variability of wholesale and retail apple prices on the warsaw market
    Autorzy:
    Jablonska, L.
    Klimek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/865680.pdf
    Data publikacji:
    2011
    Wydawca:
    The Polish Association of Agricultural and Agribusiness Economists
    Opis:
    W pracy dokonano pionowej i poziomej analizy porównawczej zmian cen jabłek na rynku warszawskim na trzech poziomach łańcucha marketingowego – cen producenta jabłek przemysłowych oraz cen producenta i detalicznych jabłek deserowych. Analizowano kierunek i dynamikę zmian tych trzech rodzajów cen, poziom ich zmienności z roku na rok, wahania sezonowe oraz siłę związku między nimi. Przedstawiono także zmiany cen środków produkcji i wynagrodzenia za pracę w rolnictwie. Prześledzenie zmian cen pozwoliło dokonać oceny sytuacji producentów jabłek i wskazać kierunek ich działania dla utrzymania wysokiej pozycji polskiego sadownictwa.
    This paper focuses on the changes of apple prices on three levels of marketing channel in Warsaw market in the years 2003-2010. The prices of processing apples and producer and retail prices of dessert apples have been taken into account. The tendency and dynamic of changes, variability and inter-variability and seasonality of these types of prices have been analyzed using the trend coeffi cient, standard deviation, Pearson’s coeffi cient and seasonality indicators. The changes of prices of production means have been estimated as well. Results indicate that the producer price changes are not fully transmitted on retail level and the increase of producer prices is lower than retail prices and lower as well as than the increase of means of production and salary in agriculture. This is getting worse economic conditions for producers, especially for those producing mainly processing apples, which prices slightly decrease.
    Źródło:
    Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu; 2011, 13, 1
    1508-3535
    2450-7296
    Pojawia się w:
    Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Opłacalność produkcji wiśni w Polsce w latach 2000-2010
    Profitability of sour cherry production in Poland in the years 2000-2010
    Autorzy:
    Brzozowski, P.
    Klimek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/832222.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    koszty produkcji
    oplacalnosc produkcji
    owoce
    plony
    Polska
    produkcja owocow
    struktura kosztow
    wisnie
    wskaznik oplacalnosci
    Opis:
    As a result of low prices for sour cherries and low profitability of sour cherry production in Poland, the total area occupied by sour cherry orchards had decreased from about 40 thousand ha in 2000 to 32 thousand ha in 2010. The objective of this research was to evaluate the production co sts and profitability of sour cherry production and to identify the factors influencing profitability. The research was carried out on eight commercial fruit farms involved in sour cherry production, all located in the central part of Poland. To quantify the strength of the relationship between the profitability index and some other independent variables, a regression analysis was used. The price paid to the farmer and the profitability index turned out to be closely correlated, but the relationship between fruit yield and profitability was statistically insignificant.
    Źródło:
    Zeszyty Naukowe Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach; 2010, 18
    1234-0855
    Pojawia się w:
    Zeszyty Naukowe Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variability and correlation of the wholesale and retail prices of apples on the Warsaw market in the years 2003–2013
    Zmienność i współzależność hurtowych i detalicznych cen jabłek na rynku warszawskim w latach 2003–2013
    Autorzy:
    Sobczak, W.
    Jablonska, L.
    Klimek, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/38205.pdf
    Data publikacji:
    2014
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Opis:
    Variability of apple prices on Warsaw market at three levels of the market chain – the producer price of industrial apples and the producer and retail prices of the dessert apples were investigated. In order to assess their mutual connections a comparative vertical and horizontal analysis of changes on the above mentioned markets was performed. The direction and dynamics of price changes were analysed as well as a year to year level of price variability and seasonal variations. What is more, their relations and the power of connection between them as well as the price effect on the shaping of export level were determined. The performed investigations will allow an assessment of the present situation of producers and point out the trends of action in order to keep the position of Poland as an important apple producer.
    W pracy badano zmiany i współzależność cen jabłek na rynku warszawskim na trzech poziomach łańcucha marketingowego – cen producenta jabłek przemysłowych, cen producenta i cen detalicznych jabłek deserowych. Aby ocenić ich wzajemne powiązania, dokonano pionowej i poziomej analizy porównawczej zmian w cenach jabłek na wspomnianych rynkach. Analizowano kierunek i dynamikę ich zmian, poziom ich zmienności z roku na rok, wahania sezonowe. Określono również siłę związku między nimi, a także wpływ poziomu cen na kształtowanie się poziomu eksportu na poszczególnych powyższych etapach dystrybucji. Przeprowadzone badania pozwolą na ocenę obecnej sytuacji i wskazanie kierunku działań dla utrzymania pozycji Polski jako liczącego się producenta jabłek.
    Źródło:
    Acta Scientiarum Polonorum. Oeconomia; 2014, 13, 3
    1644-0757
    Pojawia się w:
    Acta Scientiarum Polonorum. Oeconomia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Temperature on Ausferritic Nodular Cast Iron Microstructure
    Autorzy:
    Gumienny, G.
    Klimek, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/379556.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative casting materials
    innovative casting technologies
    nodular cast iron
    ausferrite
    annealing
    innowacyjne materiały odlewnicze
    innowacyjne technologie
    żeliwo sferoidalne
    wyżarzanie
    Opis:
    The work presents the results of the studies of the effect of the temperature on the microstructure of ausferritic nodular cast iron. The ausferrite in the matrix was obtained by way of a specific combination of molybdenum and copper. The cast iron underwent annealing at the temperatures of 520, 550 and 580°C. The work presents the effect of the annealing temperature on the fraction of austenite in the cast iron matrix. The annealed and non-annealed cast iron hardness is given. The work also proves that an increase in the temperature up to 580°C causes a drop in the cast iron hardness.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 3 spec.; 21-24
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Annealing Temperature on the Microstructure and Properties of Ausferritic Nodular Cast Iron
    Autorzy:
    Gumienny, G.
    Klimek, L.
    Kurowska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/383050.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovative casting materials
    innovative casting technologies
    ausferritic cast iron
    nodular cast iron
    impact strength
    annealing
    innowacyjne materiały odlewnicze
    innowacyjne technologie odlewnicze
    żeliwo ausferrytyczne
    żeliwo sferoidalne
    siła uderzenia
    wyżarzanie
    Opis:
    The paper presents the microstructure and selected properties of ausferritic nodular cast iron annealed at the temperature 520 and 550°C. This choice was dictated by the temperatures used in the practice of nitriding. Nodular graphite in cast iron was obtained with use of Inmold process. Cast iron containing molybdenum and copper ensuring obtaining an ausferrite in the cast iron matrix without the use of heat treatment of castings was tested. The effect of annealing temperature on the microstructure and the kind of fracture of the ausferritic nodular cast iron was presented. The effect of an annealing temperature on hardness, impact strength and the microhardness of ausferritic nodular cast iron matrix was shown too. The lamellar structure of phases in the cast iron matrix after annealing has been ascertained. There has been an increase in hardness of an annealed cast iron and microhardness of its matrix. The reduction in the impact strength of the cast iron annealed at 520 and 550°C was approximately 10-30%. Both an increase in the hardness of cast iron as well as an decrease in its impact strength is probably due to the separation of secondary carbides during the heat treatment.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 43-48
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biological evaluation of β-1,3-glucan/HA bone scaffold fabricated via new method
    Autorzy:
    Klimek, K.
    Przekora, A.
    Ginalska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/284634.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    curdlan
    scaffolds
    biomaterials
    Źródło:
    Engineering of Biomaterials; 2016, 19, 138; 52
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The presence of mites (Acari) in pine wood chips enriched with peat and lignite inoculated with forest litter and irrigated
    Autorzy:
    Klimek, A.
    Chachaj, B.
    Gackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/100933.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    soil regeneration
    wood chips
    soil organic horizon
    mesofauna
    Oribatida
    Opis:
    The aim of the study was to analyze the presence of mites (Acari), with special focus on indicator oribatid mites (Oribatida), in control pine wood chips and pine wood chips enriched with peat and lignite inoculated with forest litter and irrigated. The study was conducted in 2013 on microplots (1 x 1 m) located within a belt of trees in a nursery in Białe Błota. The experiments included the following variants: C - pine wood chips, Ec - pine wood chips inoculated with forest litter, Ec+Pe - pine wood chips enriched with deacidified high peat (20%) (pH 5.5-6.5) and inoculated with forest litter, Ec+Ca - pine wood chips enriched with granulated lignite (20%) (granule size 1-10 mm) inoculated with forest litter. The addition of forest litter caused an increase in total number of mites in the control pine wood chips and those enriched with peat. Mites belonging to Mesostigmata order prevailed in control chips and those enriched with forest litter and peat, while Oribatida were dominant mites in the other variants. Considering the results for the entire year, 20% addition of peat and lignite negatively affected the presence of oribatid mites, thus indicating a reduced biological activity of the substrates. The populations of oribatid mites on all microplots were clearly dominated by Oribatula tibialis, and Tectocepheus velatus and Adoristes ovatus were slightly less common.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/1; 483-493
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the remelting on transformations in Co-Cr-Mo prosthetics alloy
    Autorzy:
    Kacprzyk, B.
    Szymczak, T.
    Gumienny, G.
    Klimek, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/382914.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    theory of crystallization
    remelting
    thermal analysis
    derivative analysis
    microstructure
    composition
    alloys properties
    prosthetics alloys
    teoria krystalizacji
    przetapianie
    analiza termiczna
    analiza derywacyjna
    mikrostruktura
    właściwości stopu
    stop protetyczny
    Opis:
    In the article we were studing the impact of the remelting on transformations in Co-Cr-Mo prosthetics alloy. The TDA curves were analyzed, the microstructure was examined, the analysis of the chemical composition and hardness using the Brinell method was made. It was found that the obtained microstructure of the alloys that we studied do not differ significantly. In all four samples, microscopic images were similar to each other. The volume, size and distribution of the phases remain similar. Analysis of the chemical composition showed that all the samples fall within the compositions provided for the test alloy. Further to this the hardness of the samples, regardless of the number of remeltings did not show any significant fluctuations and remained within the error limit. After analyzing all the results, it can be concluded that the remeltings of the alloys should not have a significant impact on their properties. Secondarily melted alloys can be used for prosthetics works.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 3; 47-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mite (Acari) colonization of pine chips alone and pine chips supplemented with forest litter, peat and lignite in revitalization of degraded forest soils
    Autorzy:
    Klimek, A.
    Chachaj, B.
    Gackowski, G.
    Kosakowski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/101127.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    soil regeneration
    mulching
    microarthropods
    bioindication
    Oribatida
    Opis:
    The aim of this study was to compare colonization of pine chips without supplements and pine chips supplemented with forest litter, peat and lignite by mites (Acari), and particularly oribatid mites (Oribatida) in a two-year cycle. The study was conducted in the years 2013-2014, on microplots established in a belt of trees in a nursery in Białe Błota within Bydgoszcz Forest District. The experiment was established on four microplots (1 x 1 m). It included the following variants: C - pine chips alone, Lf – pine chips inoculated with fresh forest litter, Lf+Pe – pine chips enriched with deacidified high peat (20%) (pH 5.5-6.5) and inoculated with the litter, Lf+Li - pine chips enriched with granulated lignite (20%) inoculated with the litter. In the first year of the study, mite abundance in the chips inoculated with forest litter was significantly higher than that on microplot C. In the second year of the experiment, the abundance of these microarthropods decreased probably due to unfavorable weather conditions. The most common group of mites were usually oribatid mites that accounted for 19.7 to 80.4% of all mites. An analysis of seasonal dynamics of Oribatida abundance over the entire study cycle revealed a clear increase in their numbers in non-supplemented pine chips only on the last sampling date. Oribatida abundance in Lf variant was similar at the beginning and end of the study. Contrary to that, their number decreased in the chips supplemented with peat, and particularly those enriched with lignite. In total, 36 species of oribatid mites were identified on all microplots. The greatest boost in species diversity after the introduction of forest litter was observed in Lf chips and the smallest in Lf + Li variant. Oribatula tibialis was the most common oribatid mite in the investigated substrates. Low numbers of Oppiella nova and Tectocepheus velatus, the species having trophic associations with fungi, may indicate poor colonization of the chips, particularly those enriched with lignite, by saprotrophic organisms.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1577-1590
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mite (Acari) occurrence in selected substrates used for a restoration of degraded soils
    Autorzy:
    Klimek, A.
    Chachaj, B.
    Gackowski, G.
    Dąbrowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/101510.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    forest litter
    orchard litter
    wood chips
    reintroduction
    soil regeneration
    oribatid mites
    Opis:
    The number and groups of mites (Acari) and species composition of oribatid mites (Oribatida) were analysed in three different substrates used for the restoration of degraded soils: (1) pine forest litter, (2) apple orchard litter, and (3) pine chips. The study was conducted in the years 2011-2012, on microplots of the area of 1m2 , established in a belt of trees of a nursery in Białe Błota (Bydgoszcz Forest District). Average biannual mite density per 50 cm3 of the investigated substrates ranged from 14.6 to 54.43 individuals. The highest numbers of mites were found in shredded forest litter and the lowest in pine chips. The most abundant mites in the studied material were oribatid mites, accounting for 57.3 % of these arthropods. The highest number of oribatid mites was found in the forest litter (28), and the lowest (20) in pine chips. The number of species in both types of litter was similar in the first and second year of the study, but it rose three times in the pine chips substrate over the study period. Oribatid species in the litter substrates were dominated by the eurytopic Tectocepheus velatus, and the most abundant species in the pine chips substrate was Oribatula tibialis. The experiment indicated a possibility of practical use of the shredded litter in the reintroduction of soil mesofauna and soil regeneration. This may facilitate the soil inoculation process, e.g., by using seeders specially adapted for this purpose. Additionally, a quick colonization of wood chips by acarofauna may suggest the possibility of using them as an excellent substrate for soil regeneration.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2018, II/1; 277-291
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dialysis method for β-1,3- glucan gelation provides high biocompatibility of β-1,3-glucan/HA bone scaffold
    Autorzy:
    Klimek, K.
    Przekora, A.
    Wójcik, M.
    Ginalska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/284818.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    dialysis
    bone scaffolds
    biocompatibility
    Źródło:
    Engineering of Biomaterials; 2018, 21, 148; 11
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena cytotoksyczności in vitro nanokompozytu PCL/HAp jako rusztowania dla inżynierii tkankowej
    In vitro cytotoxicity assessment of PCL/HAp nanocomposite scaffold for bone tissue engineering
    Autorzy:
    Klimek, K.
    Świętek, M.
    Błażewicz, M.
    Ginalska, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/284886.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    cytotoksyczność
    nanokompozyty
    inżynieria tkankowa
    cytotoxicity
    nanocomposite
    tissue engineering
    Źródło:
    Engineering of Biomaterials; 2014, 17, no. 128-129; 50-53
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occurrence of oribatid mites (Acari: Oribatida) on the sites of a new species Hierochloë repens (Host) P.B. in Bydgoszcz area
    Autorzy:
    Klimek, A.
    Gęsiński, K.
    Gackowski, G.
    Kobierski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/101145.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    invasive species
    Hierochloë repens
    oribatid mites
    biodiversity
    bioindication
    Opis:
    The study was conducted within the Bydgoszcz limits and in the vicinity of city Bydgoszcz at seven different habitats of Hierochloë repens presence: city district Fordon - (1), (2), (3) and (4); city district Kapuściska - (5), and Białe Błota near Bydgoszcz - (6) and (7). Samples for acarological analyses were collected from the plots covered with Hierochloë repens in spring (27 May) and autumn (28 October) 2014. The density of oribatid mites on the sites with Hierochloë repens was highly variable. High density of these microarthropods was characteristic of plots (2) with Convolvulo-Brometum inermis, (5) with Arrhenatheretum elatioris and (7) covered with grassy herbaceous plants growing on fertile soils. Particularly low density of oribatid mites was observed for plot (3) with Koelerio-Corynephoretea and Festuco-Brometea communities and the lowest content of carbon and nitrogen in the soil. Depending on the site and sample collection time, four to 22 species of oribatid mites were identified. Statistical analysis (Mann-Whitney U test) of mean number of species per sample s identified two groups of plots for both sample collection terms characterized by either low (1.00-3.10) or high values (3.30-7.40) of this parameter. The first group included plots (1), (3) and (6), and the second (2), (4), (5) and (7). The following species of oribatid mites dominated on the plots covered with Hierochloë repens: Tectocepheus velatus - (1), (2) and (6); Scheloribates laevigatus - (3), Oppiella nova - (4), Eupelops occultus - (5), Liebstadia similis - (7).
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1713-1724
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie zawartości i wydajności oleju w zależności od sposobu nawożenia oraz klasy wczesności i typu ziarna mieszańców kukurydzy
    Comparing content and yielding of oil in relation to fertilization method, class of early sowing, and grain type in corn hybrides
    Autorzy:
    Pinczuk, G.
    Klimek-Kopyra, A.
    Pustkowiak, H.
    Zajac, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/827348.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Technologów Żywności
    Opis:
    Doświadczenie przeprowadzono w latach 2008 i 2009 w Stacji Doświadczalnej PWSZ w Sanoku, zlokalizowanej w Nowosielcach. Materiałem badawczym było ziarno 4 mieszańców kukurydzy różniących się wczesnością (sw – średnio wczesne i sp – średnio późne) oraz typem ziarna (flint: ‘Ravello’, ‘Arobase’ i dent: ‘Oldham’, ‘Nekta’). Porównywanymi czynnikami agrotechnicznymi był sposób nawożenia mineralnego, klasa wczesności mieszańców – średniowczesne i średniopóźne, a także typ ziarna ‘flint’ i dent’. W próbach dużych (n>100) zebranego ziarna, oszacowano masę ziarna i zarodka. W zarodkach kukurydzy oznaczono zawartość t łuszczu i profil kwasów tłuszczowych oleju kukurydzianego. Stwierdzono, że zwiększenie masy ziarniaka badanych odmian, bez względu na typ, było wysoce istotnie i dodatnio skorelowane z masą zarodka. Wzrost masy ziarniaka i masy zarodka determinował zwiększenie plonu oleju z jednostki powierzchni. Stwierdzono, że olej z zarodków kukurydzy charakteryzował się wysokim udziałem kwasu linolowego w profilu kwasów tłuszczowych.
    The experiment was conducted at an Experimental Station in Sanok, owned by PWSZ, during a period from 2008 to 2009. The research material were four corn hybrids; they differed in early sowing terms (medium early sowing and medium late sowing) and in the type of grain variety (flint variety of ‘Ravello’and ‘Arobase’, and dent variety of ‘Oldham’ and ‘Nekta’). Compared were the following agricultural engineering factors: mineral fertilization method, early sowing class of hybrids: medium-early and medium-late sowing, and, also, the type of ‘flint’ and ‘dent’ grain variety. In the samples of large grains (n>100) gathered, the weight of grain and of germ were assessed. The content of fat and fatty acid profile of corn oil were determined in the germs. It was found that, regardless of the grain type, the increase in the grain weight of the varieties analysed was highly significant and correlated with the weight of germ. The increase in the grain weight and in the germ weight decided on the increase in the oil yield per one unit area. It was found that the oil from corn germs was characterized by a high content of linoleic acid in the fatty acid profile.
    Źródło:
    Żywność Nauka Technologia Jakość; 2011, 18, 5
    1425-6959
    Pojawia się w:
    Żywność Nauka Technologia Jakość
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ przygotowania powierzchni zębiny kanałowej na jej adhezję do materiału Herculite
    The influence of the preparation of the radicular dentine surface on its adhesion to Herculite material
    Autorzy:
    Skórska-Jasak, A.
    Sokołowski, G.
    Klimek, L.
    Pawlicka, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/286098.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    adhezja
    zębina korzeniowa
    EDTA
    kwas cytrynowy
    materiał kompozytowy
    adhesion
    radicular dentine
    citric acid
    composite material
    Opis:
    Celem pracy jest porównane wpływu EDTA i kwasu cytrynowego na adhezję pomiędzy zębiną korzeniową a materiałem kompozytowym Herculite. Właściwa adhezja pomiędzy materiałami wypełniającymi a strukturą zęba, stanowi odpowiednie zabezpieczenie przed mikroprzeciekiem, niezbędne do uzyskania zadawalających efektów w leczeniu stomatologicznym. Do badań użyto 40 korzeni ludzkich zębów trzonowych usuniętych ze względów stomatologicznych. Dwadzieścia losowo wybranych zębów przecinano prostopadle w stosunku do długiej osi korzenia zęba (grupa I), kolejne 20 równolegle (grupa II). Następnie poprzeczne (grupa I) i podłużne przekroje zębów (grupa II) podzielono losowo na dwie podgrupy: a i b po 10 zębów każda, aktywowano roztworami powszechnie stosowanymi w leczeniu endodontycznym i wytrawiono 37% kwasem ortofosforowym. Próbki zębów wszystkich grup pokryto systemem wiążącym Opti-Bond Solo Plus i spolimeryzowano. Na przygotowane w ten sposób powierzchnie, przy pomocy specjalnej formy o średnicy 3 mm, nanoszono materiał Herculite. Badania wykazały, że nie występują różnice istotne statystycznie w wytrzymałości na ścinanie pomiędzy połączeniem materiału Herculite z powierzchnią zębiny. Również ułożenie kanalików zębinowych w stosunku do powierzchni połączenia nie wpływa na ich wytrzymałość na ścinanie.
    The aim of this study is to compare the influence of EDTA and citric acid on adhesion between radicular dentine and composite material Herculite. Appropriate adhesion between filling material and tooth structure constitutes proper protection against coronal leak-age, indispensable to achieve a satisfactory effects in dentistry treatment. Forty human teeth molars roots, removed from dentistry indications were used in this study. Twenty randomly selected teeth were sliced perpendicularly to the long axis of dental radices (I group), following 20 parallely (group II). In the group I dentinal tubules were parallel to the analysed surface, whereas in group II perpendicular. Transversal and longitudinal teeth profiles were randomly divided into two subgroups of ten teeth each and activated by solutions which are commonly used in endodontic treatment and 37% ortophosphoric acid. Slices of all teeth were covered with a bonding system OptiBond Solo Plus and light cured. On the surfaces prepared in this way, Herculite composite material with using special form of 3 mm in diameter, was applied. The findings reveal that there are not statistical differences in shear strength between the dentine and Herculite material. Also the direction of the dentinal tubules does not influence the shear strength of the analysed samples.
    Źródło:
    Engineering of Biomaterials; 2009, 12, 85; 19-22
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Risk factors for obesity development in school children from South-Eastern Poland
    Autorzy:
    Mazur, A
    Klimek, K.
    Telega, G.
    Hejda, G.
    Wdowiak, L.
    Malecka-Tendera, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/50530.pdf
    Data publikacji:
    2008
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    girl
    risk factor
    obesity
    school child
    human disease
    boy
    biological risk factor
    child
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2008, 15, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ten-year secular trend of overweight and obesity in school children in south-eastern Poland
    Autorzy:
    Mazur, A.
    Klimek, K.
    Telega, G.
    Filip, R.
    Malecka-Tendera, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/50607.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2014, 21, 3
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of composted sludge and forest ectohumus to enrich soil in two - and three-year cultivation of common beech seedlings
    Autorzy:
    Rolbiecki, S.
    Klimek, A.
    Rolbiecki, R.
    Figas, A.
    Ptach, W.
    Gackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/101217.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    forest nursery
    common beech
    compost
    mulching
    Acari
    Opis:
    This study examined the effect of fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark and mulching with fresh forest ectohumus on selected growth parameters in two – and three-year seedlings of common beech and the occurrence of mites (Acari) in soil. The experiment was carried out in 2009-2010 in the Białe Błota forest nursery (Bydgoszcz Forest District) on proper rusty soil. The entire area of the experiment was irrigated with a stationary sprinkler. The beech seedlings on the plots where compost had been used as fertiliser were significantly taller than those growing on the plots where mineral fertilisers had been applied. Mulching increased the height of the seedlings significantly only in the last, third year of the study. The tallest three-year-old seedlings were found on the plots in which both of the tested procedures had been carried out. Neither of the factors under study had a significant effect on the diameter of the root neck in the second year of the nursery cultivation, but they increased it significantly in the third year. Fertilisation with compost with an addition of pine-tree bark increased the number of leaves per plant and the leaf area in two – and three-year-old seedlings. A beneficial and significant effect of mulching on these parameters was found in the third year of cultivation. A significantly positive effect of mulching on the mite gathering density was recorded in the second year of the nursery cultivation. However, both of the experimental factors had a positive effect on the occurrence of those arthropods in the third year of the study. Oribatid mites were the most numerous mite order and they were found in the greatest density on plots where mulching had been applied. Fertilisation and mulching increased the Oribatida/Actinedida ratio, which may indicate an improvement of the biological balance in the soil environment.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1057-1069
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of composted sludge and forest ectohumus to enrich soil in two - and three-year cultivation of scots pine in a forest nursery
    Autorzy:
    Rolbiecki, S.
    Klimek, A.
    Rolbiecki, R.
    Figas, A.
    Ptach, W.
    Gackowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/101590.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    forest nursery
    Scots pine
    ectohumus
    reintroduction of soil fauna
    Acari
    Opis:
    This study examined the effect of fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark and mulching with fresh forest ectohumus on selected growth parameters for two - and three-year-old Scots pine trees and on the incidence of mites (Acari) in the soil. The experiment was carried out in 2009-2010 in the Białe Błota forest nursery (Bydgoszcz Forest District) on proper rusty soil. The entire area of the experiment was irrigated with a stationary sprinkler. Organic fertilisation with compost prepared from hygienised sludge with an addition of pine-tree bark resulted in a significant increase in the plant height and the diameter of the root neck in two-year-old pine trees. The effect of mulching on these parameters was not significant. The synergistic effect of the factors on the plant height and the diameter of the root neck was not significant. Organic fertilisation significantly increased the height of 3-year-old pine trees, whereas it did not have a significant effect on the root neck diameter. Mulching increased the plant height significantly, but no statistical effect on the diameter of the root neck was demonstrated. Although no significant interaction of either experimental factors in their effect on the plant height and the diameter in the root neck was observed, the parameters tended to increase in the experimental option, which included organic fertilisation and mulching. Mulching had a significant effect on the presence of soil mites, especially oribatid mites (Oribatida). Their density increased greatly after the procedure. This growth, as well as an increase in the ratio of Oribatida to Actinedida could be a sign of improvement of the biological balance of the soils under study and their biological activity.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1117-1128
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Field phenotyping of plant roots by electrical capacitance - a standardized methodological protocol for application in plant breeding: a Review
    Autorzy:
    Streda, T.
    Haberle, J.
    Klimesova, J.
    Klimek-Kopyra, A.
    Stredova, H.
    Bodner, G.
    Chloupek, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082875.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    root system
    drought tolerance
    varieties
    yield
    Opis:
    Due to the absence of a suitable method and standardized procedures, the root systems of plants have been evaluated to a much lesser extent than aboveground organs. The aim of this article is (i) to provide a detailed description and thus standardization of an upgraded procedure of electrical capacitance measurement for evaluating the size of the root system of plants in situ, which allows for a reassessment to be made during the growing season and subsequent harvest of seeds for the planting of selected progenies, (ii) to demonstrate, through a standardized methodological protocol, the applicability of root electrical capacitance measurement as a field phenotyping method for the selection of superior root systems to improve crop abiotic stress tolerance and resource efficiency, (iii) to suggest a standardized methodological protocol for the application of electrical capacitance measurements in breeding nurseries, and (iv) to discuss the methodological aspects, development and limitations of this method. A methodological overview of the use of electrical capacitance to measure plant root systems, which emerged from working groups directed by the author of this unique method, is presented along with a standardized protocol. An overview of the application of electrical capacitance measurements of roots in breeding is shown along with some examples of successful applications.
    Źródło:
    International Agrophysics; 2020, 34, 2; 173-184
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occurrence of mites (Acari) in the soil of a blackcurrant plantation after applications of organic mulches and mycorrhizal inoculum
    Autorzy:
    Klimek, A.
    Chachaj, B.
    Gackowski, G.
    Sas-Paszt, L.
    Treder, W.
    Malusa, E.
    Przybył, M.
    Frąc, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/101279.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    organic mulches
    mycorrhizal inoculum
    bioindication
    soil acarofauna
    oribatid mites
    Opis:
    The study was conducted in the Pomological Orchard of the Research Institute of Horticulture in Skierniewice on a plantation of blackcurrant cultivar ‘Tiben’. The following variants of the experiment were applied: control – NPK fertilization only, mulching with a peat substrate, shredded pine bark, sawdust of coniferous trees, bovine manure, plant compost, straw of cereals, and application of mycorrhizal inoculant MYKOFLOR. Mulching was performed each year in the spring in an amount of 25 dm3 per plot, and the inoculum was applied in an amount of 10 ml per shrub. Samples for acarological examinations were collected at 4 times, in the spring and autumn of successive seasons in 2012-2013. An increase in the overall density of mites, in comparison with the control surface, was observed after mulching the soil with sawdust of coniferous trees and plant compost. On all the plots, the communities of mites were dominated by mites of the order oribatid mites. For these mites, a statistically significant increase density was recorded after mulching the soil with sawdust of coniferous trees, bovine manure and plant compost. Mulching did not increase significantly the species diversity of oribatid mites. The soil of the blackcurrant plantation was found to be inhabited by relatively large numbers of two common oribatid mites species: Punctoribates punctum and Tectocepheus velatus. An increase in the population density of Punctoribates punctum was observed after mulching with peat, sawdust and compost.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/2; 1287-1296
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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