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Wyświetlanie 1-12 z 12
Tytuł:
Linkage and interdependence of A2MD1 and A2ME2 alpha2-macroglobulin genes in cattle
Autorzy:
Wegrzyn, J
Skiba, E
Krzyscin, P
Powiązania:
https://bibliotekanauki.pl/articles/2047144.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
antigen marker
gene
animal production
alpha2-macroglobulin
cattle
antigenic determinant
protein
marker
A2MD1 gene
A2ME2 gene
Opis:
The transmission of previously described genes A2MD1 and A2ME2 that determine antigenic markers of alpha₂-macroglobulins A₂mD1 and А₂mЕ2 in cattle was studied. The starting point for the analyses was the lack of individuals negative for both markers in the population of 3551 Black-and-White, Red-and-White, Polish Red and Simmental cattle and interbreed crosses. Controlling of these specificities by allelic genes or genes from closely linked loci was considered. To support or reject this hypothesis, the independence test 2 x 2 and analysis of segregation of A₂mD1 and А₂mЕ2 in the offsprings of all phenotypic matings found and of selected matings in which genotypes of sires were determined, were used. It was found that the observed segregation of antigenic markers in the offsprings rules out the possibility that they are determined by allelic genes. The results obtained show that markers A₂mD1 and А₂mЕ2 are controlled by the genes A2MD1 and A2ME2 from closely linked loci. Moreover it seems that only those haplotypes are transmitted in which both genes - A2MD1 and A2ME2, or one of them - A2MD1 or A2ME2, are present. No haplotypc would then be transmitted (would occur?) in which both genes are in the recessive form. recessive form.
Źródło:
Journal of Applied Genetics; 1997, 38, 2; 187-193
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular studies in osteogenesis imperfecta [OI] II. Evaluation of intragenic polymorphic sites in COL1A1 and COL1A2 loci
Autorzy:
Kostyk, E
Sucharski, P.
Pietrzyk, J.J.
Kruczek, A.
Powiązania:
https://bibliotekanauki.pl/articles/2044212.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
intragenic polymorphic site
polymorphism
haplotype
DNA isolation
COL1A1 gene
electrophoresis
collagen
COL1A2 gene
molecular marker
osteogenesis imperfecta
Opis:
The goal of the study was to evaluate intragenic polymorphic sites in COL1A1 and COL1A2 loci. For COL1A1 the following intragenic markers were used: PCR-RFLP (COL1A1), G/A polymorphism in exon 45 of COL1A1 and C/T polymorphism in +88 position of COL1A1 non-translatable 3’ end. For COL1A2 PCR-VNTR was analyzed. 17 families were examined (6 of the "simplex" type and 11 of the "multiple" type). In 8 out of 11 "multiplex" families the segregation of the markers revealed correlation with OI, whereas the other 3 were non-informative. The method was not useful in "simplex" families.
Źródło:
Journal of Applied Genetics; 1998, 39, 4; 349-365
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular docking and pharmacokinetic prediction of phytochemicals from Syzygium cumini in interaction with penicillin-binding protein 2a and erythromycin ribosomal methylase of Staphylococcus aureus
Autorzy:
Shidiki, A.
Vyas, A.
Powiązania:
https://bibliotekanauki.pl/articles/2096259.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
methicillin-resistant S. aureus
penicillin-binding protein 2a
erythromycin ribosomal methylase
Opis:
Background. MRSA and MLSB resistant S. aureus are known as important pathogens, which are responsible for many cases of both hospital and community-acquired infections worldwide. Studying drug discovery from plant sources is regarded as an important prevention strategy regarding these types of infections. Material and methods. Agar well diffusion method was performed for antimicrobial evaluation, LCMS technique used for identification of different compounds, molecular docking performed by application of iGEMDOCK for PBP2a and ERM to plant compounds, and its pharmacokinetic evaluation of ADMET through use of AdmetSAR. Results. Water extract was the most effective against resistant strains of Staphylococcus aureus. Twenty compounds belonging to phenols, flavonoids, organic acids, terpenoids groups were reported. Eighteen plant compounds passed in Lipinski's rule of five. iGEMDOCK revealed diferulic acid has the least binding energy -102.37 kcal/mole to penicillin-binding protein 2a and taxifolin has the least binding energy of -103.12 kcal/mole to erythromycin ribosomal methylase in comparison to control linezolid. These compounds raise the potential for developing potent inhibitors of penicillin-binding protein 2a and erythromycin ribosomal methylase for drug development. ADMET properties revealed that eighteen studied compounds were found in category III and IV with non-toxic properties except two butin and taxifolin found in category II with toxic properties. Conclusions. It can be concluded that diferulic acid and taxifolin compounds provide the best inhibitor effect to PBP2a and ERM protein for inhibition of MRSA and MLSB resistant strains of S. aureus through the application of molecular docking, leading to a lead drug candidate for the treatment of diseases.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2022, 103, 1; 5-18
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular studies in osteogenesis imperfecta [OI] III. cDNA of COL1A1 and COL1A2 analysis using the BESS-T-Scan technique
Autorzy:
Sucharski, P
Sanak, M.
Kostyk, E.
Pietrzyk, J.J.
Kruczek, A.
Powiązania:
https://bibliotekanauki.pl/articles/2044221.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
COL1A1 gene
electrophoresis
COL1A2 gene
collagen production
man
RNA isolation
mutation
BESS-T-Scan technique
molecular diagnosis
DNA
osteogenesis imperfecta
cDNA synthesis
fibroblast culture
Opis:
A BESS-T-Scan analysis of cDNA COL1A1 and COL1A2 obtained by RT-PCR derived from five patients with sporadic forms of ostegenesis imperfecta was performed. The study was done in four patients with type I and one patient with type III OI. The analysis revealed the presence of structural changes in two regions of cDNA COL1A1 in two patients. No quantitative changes referring to COL1A2 gene were noted in any patient. The above analysis was the first application of the BESS-T-Scan technique in a molecular diagnosis of OI. The applied method seems to be useful and fulfil the basic criteria of the screening method to detect and locate mutations.
Źródło:
Journal of Applied Genetics; 1998, 39, 4; 367-373
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Treatment of wastewater from service areas at motorways
Oczyszczanie ścieków z miejsc obsługi podróżnych przy autostradzie
Autorzy:
Makowska, M.
Mazurkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/205279.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
motorway service areas
local treatment plants
biofilters
wastewater treatment
facilities at transport routes
miejsca obsługi podróżnych
MOP
natężenie ruchu
autostrada A2
oczyszczalnie lokalne
biofiltr
jakość ścieków
Opis:
This paper deals with wastewater treatment systems placed in motorway service areas (MSAs). In the years 2008-2009 eight of such facilities installed on the stretch of the A2 motorway between Poznań and Nowy Tomyśl were examined and analyzed. The system consists of a septic tank, a submerged aerated biofilter and an outflow filter. The volume of traffic on the highway was analyzed, the amount of water use was measured and peak factors were calculated. On this basis it was concluded that the inflows to the wastewater treatment systems in many cases exceeded the nominal design values. Based on the analysis of effluent quality it was found that the effects of plant operation in large part did not meet the requirements. It was found that the bioreactor aeration system and the design of the suspension separator (outflow filter) should be modified. One of the solutions was to use the soil-reed bed for wastewater treatment. The treatment of wastewater from the MSAs is a task that must take into account the unusual character of these facilities and the atypical quality of the effluent.
Praca dotyczy systemów oczyszczania ścieków w Miejscach Obsługi Podróżnych (MOP) przy autostradach. Badano i analizowano 8 instalacji zamontowanych w MOP-ach przy autostradzie A2 między Poznaniem a Nowym Tomyślem. Systemy składają się z osadnika gnilnego, zanurzonego, napowietrzanego złoża biologicznego i filtra odpływowego. Analizowano natężenie ruchu na autostradzie, ilość zużywanej wody oraz jakość ścieków na wlocie i wylocie z bioreaktora. Na tej podstawie stwierdzono, że wielkość oczyszczalnie nie jest adekwatna do ilości i jakości dopływających ścieków. Stwierdzono, że jakość odpływu jest niezadowalająca oraz zaproponowano zmiany konstrukcyjne i technologiczne.
Źródło:
Archives of Environmental Protection; 2016, 42, 4; 80-89
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interplay of two PP2A B subunits in high light acclimation
Autorzy:
Konert, G.
Trotta, A.
Rahikainen, M.
Kangasjarvi, S.
Powiązania:
https://bibliotekanauki.pl/articles/80957.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
reactive oxygen species
homeostasis
alternative oxidase
proteomic analysis
signalling pathway
PP2A phosphatase
B subunit
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
PP2A phosphatase interacts with CPK kinase and regulates pathogenesis responses triggered by intracellular ROS signals
Autorzy:
Kangasjarvi, S.
Denessiouk, K.
Trotta, A.
Konert, G.
Rahikainen, M.
Li, S.
Mhamdi, A.
Noctor, G.
Powiązania:
https://bibliotekanauki.pl/articles/80995.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
protein phosphatase 2A
calcium-dependent protein kinase
reactive oxygen species
organelle
protein kinase
plant immunity
Arabidopsis
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emotional expression in a foreign language. What factors influence the choice of a non-native language while expressing emotions
Autorzy:
Ożańska-Ponikwia, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/577078.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bilingualism
expression of emotion in a foreign language
L2 use
sociocultural competence
Opis:
The present contribution is concerned with the expression of emotions in a foreign language. It seeks to investigate what factors among gender, educational level, exposure to a foreign language and culture, L2 use, length of stay in a foreign country, or self-perceived L2 proficiency might influence the choice of a foreign language for emotional expression. The statistical analysis of 102 Polish-English bilinguals and Polish L2 users of English responses to an online questionnaire measuring expression of emotions in a foreign language reviled that the L2 use, self-perceived L2 proficiency and frequent contact with the L2 were linked to the expression of emotions in a foreign language. The results of this study show the complexity of the relationship between language, culture and emotions, suggesting that the exposure to a foreign language and its culture might be the key factor facilitating the choice of a non-native language while talking about emotions.
Źródło:
Linguistica Silesiana; 2012, 33; 203-219
0208-4228
Pojawia się w:
Linguistica Silesiana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication of Mo-Si-B Intermetallic Compound Powders Under Different Heat Treatment Conditions
Autorzy:
Park, J. H.
Lee, S.
Kim, D.
Kim, Y.
Yang, S. H.
Lee, S. H.
Powiązania:
https://bibliotekanauki.pl/articles/353369.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Mo-Si-B alloys
intermetallic compounds
reitveld refinement
T2 phase
A15 phase
Opis:
In this research, we investigated the effects of reduction atmospheres on the creation of the Mo-Si-B intermetallic compounds (IMC) during the heat treatments. For outstanding anti-oxidation and elevated mechanical strength at the ultrahigh temperature, we fabricated the uniformly dispersed IMC powders such as Mo5SiB2 (T2) and Mo3Si (A15) phases using the two steps of chemical reactions. Especially, in the second procedure, we studied the influence of the atmospheres (e.g. vacuum, argon, and hydrogen) on the synthesis of IMCs during the reduction. Furthermore, the newly produced IMCs were observed by SEM, XRD, and EDS to identify the phase of the compounds. We also calculated an amount of IMCs in the reduced powders depending on the atmosphere using the Reitveld refinement method. Consequently, it is found that hydrogen atmosphere was suitable for fabrication of IMC without other IMC phases.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 3; 1509-1512
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Cooling Rate after Homogenization on the Microstructure and Properties of 2017a Alloy Billets for Extrusion with Solution Heat Treatment on the Press
Autorzy:
Woźnicki, A.
Leśniak, D.
Włoch, G.
Pałka, P.
Leszczyńska-Madej, B.
Wojtyna, A.
Powiązania:
https://bibliotekanauki.pl/articles/355500.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
2017A alloy
cooling rate after homogenization
θ (Al2Cu) phase particles precipitation
Opis:
The influence of cooling rate after homogenization on the 2017A alloy microstructure was analysed. The capability of the θ (Al2Cu) particles, precipitated during various homogenization coolings, for rapid dissolution was estimated. For this purpose, the DSC test was used to determine the effect of the cooling rate after homogenization on the course of melting during a rapid heating. Moreover, the samples after solution heat treatment (with short time annealing) and ageing, were subjected to the microstructure investigations and the microhardness of grains interiors measurements. It was found that cooling after homogenization at 160 °C/h is sufficient for precipitation of fine θ phase particles, which dissolve during the subsequent rapid heating. The cooling at 40 °C/h, causes the precipitation of θ phase in the form of large particles, incapable of further fast dissolution.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 3; 1663-1670
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sequential fluorescent staining with CMA and DAPI for somatic chromosome identification in cucumber [Cucumis sativus L.]
Autorzy:
Plader, W
Hoshi, Y.
Malepszy, S.
Powiązania:
https://bibliotekanauki.pl/articles/2044260.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heterochromatin
4',6-diamidino-2-phenylindole
euchromatin segment
hybridization
chromosome identification
mitotic chromosome
prometaphase chromosome
somatic cell
cucumber
DNA
chromomycin A3
Cucumis sativus
Opis:
Each of the seven chromosomes in cucumber (Cucumis sativus L.) was identified using sequential staining with Chromomycin A₃ (CMA) and 4-6-diamidino-2-phenylindole (DAPI) as DNA base-specific fluorescent dyes. The present method using enzymatic digestion produced a high level of well-spread early-metaphase chromosome complements. After CMA and DAPI staining, reproducible fluorescence bands were obtained in mitotic prometaphase chromosomes. The CMA staining method made it possible to characterize whole chromosomes from prometaphase to mid-metaphase. Chromosome 1 had the largest and widest CMA-positive (CMA⁺) band from the proximal region to the interstitial region on the long arm in prometaphase. A large gap separating of the short arm from the long arm was always observed in chromosome 2 during prometaphase. The banding pattern of the short arm was similar to that of the long arm in chromosome 2. Chromosomes 1 and 2 in early metaphase had sharp and large CMA-positive and DAPI-negative (CMA⁺DAPI⁻) bands at the pericentromeric regions. In early metaphase, chromosome 3 was characterized by having a narrow CMA⁺DAPI⁻ band on the pericentromeric region of the short arm. Chromosomes 4 and 5 showed similar chromosome length and had a large CMA⁺ band at the distal region of the long arm. Chromosome 4 did not show any clear band in the short arm, while chromosome 5 showed a telomeric CMA⁺ band at the short arm and a clear CMA⁺DAPI⁻ band at the pericentromeric region. Chromosome 6 had a CMA⁺ band at the distal region and a weak CMA⁺ band at the proximal region in each of the arms. Chromosome 7 had an evident CMA⁺ band in the long arm and a CMA⁺ DAPI⁻ band in the pericentromeric region.
Źródło:
Journal of Applied Genetics; 1998, 39, 3; 249-258
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hazardous Compounds in Urban Pm in the Central Part of Upper Silesia (Poland) in Winter
Niebezpieczne związki w miejskim pyle zawieszonym w centralnej części Górnego Śląska w zimie
Autorzy:
Rogula-Kozłowska, W.
Kozielska, B.
Klejnowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/204935.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pył zawieszony
pył PM2,5
pył PM1
metale ciężkie
WWA
wielopierścieniowe węglowodory aromatyczne
związki rakotwórcze
jakość powietrza
Zabrze
PM1
PM2,5
heavy metals
PAH
benzo(a)pyrene
carcinogenicity
hazardous compounds
toxicity equivalency factor
BEQ
Opis:
Thirteen fractions of ambient dust were investigated in Zabrze, a typical urban area in the central part of Upper Silesia (Poland), during a heating season. Fifteen PAH and Cr, Mn, Co, Ni, As, Se, Cd, Pb contents of each fraction were determined. The dust was sampled with use of a cascade impactor and chemically analyzed with an energy dispersive X-ray fl uorescence spectrometer (PANalytical Epsilon 5) and a gas chromatograph with a fl ame ionisation detector (Perkin Elmer Clarus 500). The concentrations of PM1 and the PM1-related PAH and elements were much higher than the ones of the coarse dust (PM2.5-10) and the substances contained in it. The concentrations of total PAH and carcinogenic PAH were very high (the concentrations of PM1-, PM2.5-, and PM10-related BaP were 16.08, 19.19, 19.32 ng m-3, respectively). The municipal emission, resulted mainly from hard coal combustion processes, appeared to be the main factor affecting the air quality in Zabrze in winter.
Próbki trzynastu frakcji pyłu zawieszonego były pobierane w Zabrzu w okresie grzewczym (centralna część Górnego Śląska, Polska). Punkt poboru jest charakterystyczny dla obszaru miejskiego. Zbadano zawartość 15 WWA oraz Cr, Mn, Co, Ni, As, Se, Cd, Pb w każdej frakcji pyłu. Do poboru pyłu zastosowano impaktor kaskadowy, a do analizy chemicznej – spektrometr fl uorescencji rentgenowskiej z dyspersją energii (PANalytical Epsilon 5) oraz chromatograf gazowy z detektorem płomieniowo-jonizacyjnym (Perkin Elmer Clarus 500). Zarówno stężenia pyłu PM1 jak i stężenia związanych z nim WWA i pierwiastków były znacznie wyższe niż stężenia pyłu grubego (PM2.5-10) i związanych z nim substancji. Stężenia sumy WWA, a w szczególności kancerogennych związków tej grupy były bardzo wysokie (np. stężenia dla BaP związanego z PM1- i PM2.5- oraz PM10- wynosiły odpowiednio: 16.08, 19.19, 19.32 ng m-3). Na podstawie uzyskanych wyników badań dla ww. zanieczyszczeń stwierdzono, że za stan jakości powietrza w Zabrzu, w zimie, odpowiedzialna jest emisja komunalna – stacjonarne źródła spalania, głównie spalanie węgla.
Źródło:
Archives of Environmental Protection; 2013, 39, 1; 53-65
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-12 z 12

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