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Dokonano oceny sytuacji finansowej spółek przemysłu chemicznego notowanych na warszawskiej Giełdzie Papierów Wartościowych. Analizie poddano wszystkie spółki z indeksu giełdowego WIG-Chemia oraz 3 inne przedsiębiorstwa chemiczne notowane na GPW. Do zbadania kondycji finansowej przedsiębiorstw wykorzystano metody służące do przewidywania zagrożenia podmiotów upadłością, takie jak wielowymiarowa, liniowa...
Seed dormancy is of particular importance in the cultivation of cereals, as it directly affects the quality of crop yield. If the dormancy period is too short, this may lead to pre-harvest sprouting, whereas a dormancy period that is too long may cause uneven germination; both of these scenarios are associated with economic losses. Most enzymes engaged in the metabolism of abscisic acid (ABA) have...
The aim of this study was to analyze by PCR 185 isolates of Staphylococcus from milk of cows with- and without mastitis and from the cowsheds environment for their potential ability to produce five classical staphylococcal enterotoxins. Among S. aureus isolates 8 (32%) carried enterotoxin genes and only 2 of them had more than one gene. The enterotoxin genes were detected in 22 (13.7%) coagulase-negative...
The aim of this study was to examine virulence factors and the ability of S. aureus and CNS species isolated from milk of cows with mastitis to form biofilm, and to compare them with virulence factors of staphylococci from milk of cows without mastitis and cowshed environment. Most of S. aureus strains from cows with mastitis showed haemolytic activity (93.9%), among them 72.7% and 21.2% produced...
Celem badań była ocena zależności ceny jabłek w skupie od wielkości ich zbiorów za lata 1995- 2010. Polska jest jednym z największych producentów jabłek w Unii Europejskiej i na świecie. Wielkość zbiorów jabłek ma największy udział w zbiorach ogółem owoców z drzew w Polsce. Z przeprowadzonych badań wynika, że istnieje zależność pomiędzy wielkością zbiorów jabłek a ceną ich skupu.
The aim of this study was to examine phenotypic and genotypic antimicrobial resistance of staphylococci from milk samples from cows with subclinical and clinical mastitis and from cows without mastitis symptoms to methicillin, tetracyclines, macrolides and lincosamides (ML). Of 207 strains, including 34 S. aureus and 173 coagulase-negative staphylococci (CNS), 11 (6.4%) CNS strains were phenotypically...
Investigation of antimicrobial resistance and genetic relatedness of staphylococci from milk of cows with mastitis and cowshed environment was the aim of this study. Antimicrobial resistance against 14 antimicrobials were determined by using a disc diffusion method. Genetic similarity between the most frequently isolated species was analysed by PFGE (pulsed-field gel electrophoresis). Haemolytic activity,...
Zaprezentowano funkcjonowanie rynku mleka w Polsce. Przedstawiono uwarunkowania prawne rynku mleka w Polsce po przystąpieniu do Unii Europejskiej. Przeprowadzono również statystyczną analizę zmian w zakresie produkcji i konsumpcji mleka w Polsce wraz z analizą bilansu mleka. WPR w zakresie regulacji rynku mleka nie wpłynęła istotnie na wielkość podaży tego surowca zarówno w Polsce, jak i w krajach...
Phenylalanine aminopeptidase (Phe-AP) was isolated from the shoots of 3-week-old pea plants and purified to molecular homogeneity using a four-step purification procedure (ammonium sulphate precipitation, chromatography on DEAE-cellulose, phenyl-sepharose HP, and Protein-Pak Q 8HR HPLC columns). The enzyme was purified 513-fold with a recovery of 8%. The molecular weight of the purified enzyme as...
Sixty isolates of Yersinia enterocolitica from pigs belonging to 1A and 4 biotypes, and one non-typeable isolate were investigated in order to determine the occurrence of genes directly connected with pathogenicity of Y. enterocolitica by using a multiplex PCR. The multiplex PCR assay was based on the amplification of the αil, ystA, ystB, and yαdA genes in one reaction. The bacterial adhesion to hydrocarbon...
Zaprezentowano wykorzystanie modeli predykcji bankructwa do oceny kondycji spółek wchodzących w skład WIG-Spożywczy. Do analizy 18 spółek giełdowych wybrano model logitowy oraz liniową funkcję dyskryminacyjną.
Artykuł prezentuje przyczyny bankructwa przedsiębiorstw z branży rolno-spożywczej. Przedstawiono również skalę zjawiska upadłości firm z sektora rolno-spożywczego na tle gospodarki polskiej.
The research aimed at estimating the ability to form a biofilm in in vitro conditions by Pseudomonas aeruginosa strains isolated from the degraded natural environment. The research included 71 strains of Pseudomonas aeruginosa isolated from: an oil spill (23), compost (18), a petrol spill from a petrol station (12), a waste dump (12) and sediment obtained from a sewage treatment plant (6). Among 71...
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