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Tytuł:
Identification and genetics of betaglobulin [BgC1] and alphaglobulin [AmiF1] antigenic markers in cattle
Autorzy:
Wegrzyn, J
Skiba, E
Wegrzyn, Z
Powiązania:
https://bibliotekanauki.pl/articles/2047266.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
genetics
alpha-globulin
serum
cattle
antigenic determinant
protein
beta-globulin
genetic marker
alpha-microglobulin
Opis:
Alloantibodies detecting antigenic determinants called BgC1 and AmiF1 were obtained in cattle. The analysis of determinants' inheritance was done on 1754 offsprings after 72 sires and 1740 dams. The molecule-carriers of both traits were characterized using serological and physico-chemical methods. It was found that the identified determinants are markers of beta-globulin and alpha-microglobulin proteins, and of autosomal, dominant genes BgC1 and AmiF1 from independent loci, which control them.
Źródło:
Journal of Applied Genetics; 1996, 37, 3; 285-292
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multifractal Nature of Diesel Engine Rattle Noise in Vehicle
Autorzy:
Puchalski, A.
Komorska, I.
Powiązania:
https://bibliotekanauki.pl/articles/176736.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanical noise
mechanical vibration
multifractal formalism
alpha-stable distributions
Opis:
The investigation results of the emission of noises accompanying the diesel engine powertrain running in unloaded condition at low or idle speed, are presented in the hereby paper. The multifractal nature of the tested signals was confirmed by means of two groups of parameters. The proposed local parameters are based on the distribution of the probability density of measures, segregated into subsets according to pointwise Holder exponents. The obtained spectra constitute a set of multifractal measures related to singularities representing the local scaling of measures in various points of the time series. Global parameters were defined on the basis of multifractal measures of the parametrised Renyi’s entropy. These are properties treating summarily the whole spectrum of the emitted noise and reflecting changes of the vibroacoustic energy levels generated by noise sources. The tests encompassing simultaneous application of both groups of parameters confirmed their efficiency in the comparative analysis as well as in the subjective assessment of the noise level generated in the drive system of vehicles with diesel engines. This opens new possibilities within the simulation range of vehicle noises, for the needs of constructing the passive and active reduction systems of the effects of the vibroacoustic energy propagation.
Źródło:
Archives of Acoustics; 2017, 42, 3; 469-474
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of in vitro culture conditions for obtaining flax (Linum usitatissimum L. cv. Modran) cell suspension culture
Autorzy:
Seta-Koselska, A.
Skorzynska-Polit, E.
Powiązania:
https://bibliotekanauki.pl/articles/81015.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Linum usitatissimum
flax
in vitro culture
alpha-linolenic acid
phytochemical
lignan
callus culture
cell suspension culture
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The expression profile of galactinol synthase genes (VhGolS1 and VhGolS2) in developing Vicia hirsuta ([L.] S.F. Gray) seeds
Autorzy:
Podlinski, P.
Gojlo, E.
Pupel, P.
Jastrzebski, J.P.
Paukszto, L.
Gorecki, R.J.
Powiązania:
https://bibliotekanauki.pl/articles/80158.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
expression profile
galactinol synthase
alpha-D-galactoside
galactosyl cyclitol
Vicia hirsuta
seed
gene expression
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction between larval alpha-amylase of the tomato leaf miner, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) and proteinaceous extracts from plant seeds
Autorzy:
Esmaeily, M.
Bandani, A.R.
Powiązania:
https://bibliotekanauki.pl/articles/65574.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
interaction
larva
alpha-amylase
tomato leafminer
Tuta absoluta
Lepidoptera
Gelechiidae
plant extract
seed
plant seed
Opis:
The tomato leaf miner, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae), is one of the most destructive pest of solanaceae and it prefers tomato (Solanum lycopersicum L.). The aim of the current study was to investigate the effects of a wide range of seed proteinaceous extracts from different plant families against T. absoluta α-amylase activity. The effect of pH on the inhibitory activity of seed extracts showed that seed extracts of amaranth along with a wheat cultivar (Alvand, Aflak, Sarvdasht, Alborz, and Kavir) produced more than a 50% inhibition of the insect amylase. Aflak wheat seed extract at 10 μg, inhibited 81% of the insect amylase. This percent was the highest inhibition achieved. The other proteinaceous seed extracts had a lower effect on the enzymatic activity. Probit analysis showed that Aflak, Kavir, Alborz, Alvand, Sarvdasht, and amaranth inhibited the amylase activity with an I50 of 1.94, 3.24, 3.46, 3.31, 4.97, and 15.39 μg, respectively. The effect of pH on the inhibition of the α-amylase showed the highest inhibition of Amaranth and wheat, at a pH value of 8.0, which corresponds to the pH of the insect’s gut. Gel electrophoresis assays confirmed the spectrophotometric assays showing that the α-amylase of the insect gut was affected by the presence of the seed extracts. In the gel assay, a high concentration (14 μg protein) of amaranth proteinaceous seed extract greatly decreased the intensity of the α-amylase band. A high concentration of the Aflak wheat cultivar (10 μg protein) caused the disappearance of the amylase band in the gel. Thus, it is concluded that the physiochemical environment of the insect gut affects the interaction between digestive α-amylase and the metabolites. The experiments showed that seed proteinaceous extracts from non-host plant species, produced more inhibition of the insect amylase when compared to the host plant species. It appears that with evolution, adaptation took place so that insect/s could overcome the plant metabolites.
Źródło:
Journal of Plant Protection Research; 2015, 55, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Minimum dispersion coefficient criteria based positioning algorithm for BDS
Autorzy:
Wang, L.
Li, L.
Powiązania:
https://bibliotekanauki.pl/articles/141700.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alpha-stable distribution
BeiDou satellites
Kalman filter
minimum dispersion coefficient criteria
non-Gaussian noise
positioning algorithm
Opis:
The BeiDou navigation satellite system (BDS) is one of the four global navigation satellite systems. More attention has been paid to the positioning algorithm of the BDS. Based on the study on the Kalman filter (KF) algorithm, this paper proposed a novel algorithm for the BDS, named as the minimum dispersion coefficient criteria Kalman filter (MDCCKF) positioning algorithm. The MDCCKF algorithm adopts minimum dispersion coefficient criteria (MDCC) to remove the influence of noise with an alpha-stable distribution (ASD) model which can describe non-Gaussian noise effectively, especially for the pulse noise in positioning. By minimizing the dispersion coefficient of the positioning error, the MDCCKF assures positioning accuracy under both Gaussian and non-Gaussian environment. Compared with the original KF algorithm, it is shown that the MDCCKF algorithm has higher positioning accuracy and robustness. The MDCCKF algorithm provides insightful results for potential future research.
Źródło:
Archives of Electrical Engineering; 2018, 67, 4; 739-753
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
RT-PCR-based identification of genetic variants of alpha S1 casein in milking goats
Autorzy:
Tokarska, M
Szumska, D.
Dobosz, T.
Powiązania:
https://bibliotekanauki.pl/articles/2043614.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polymorphism
gene
cheese flavour
alpha S1 casein
cDNA
processing quality
milk
protein content
fat content
Źródło:
Journal of Applied Genetics; 1999, 40, 4; 335-342
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tumor necrosis factor-alpha as a possible auto-/paracrine factor affecting estrous cycle in the cat uterus
Autorzy:
Siemieniuch, M.J.
Ogrodowska, K.
Ohgawara, H.
Skarzynski, D.J.
Okuda, K.
Powiązania:
https://bibliotekanauki.pl/articles/31521.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
oestrous cycle
cat
tumour necrosis factor-alpha
uterus
prostaglandin
tumour cell
cell differentiation
mRNA
gene expression
Opis:
Tumor Necrosis Factor-alpha (TNFα) is a pleiotrophic cytokine, affects either normal or tumor cells, and influences cellular differentiation. TNFα role in female reproduction has been proven to be mediated through an influence on prostaglandin (PGs) synthesis and output. To evaluate the possible role of TNFα in an auto-/paracrine regulation in the cat uterus, mRNA expression coding for TNFα and its receptors (TNFR1 and TNFR2), and TNFα protein content at different stages of the estrous cycle were investigated. Additionally, TNFα involvement in PG secretion at different stages of the estrous cycle was investigated by in vitro tissue culture. Gene expressions coding for TNFα and TNFR1 were the highest at diestrus (P < 0.05). TNFα protein expression was the lowest at interestrus (P < 0.05). Nevertheless, TNFR2 was not affected by the estrous stage. TNFα at a dose of 1 ng/ml significantly increased PGF₂α secretion at estrus (P < 0.01) and PGE₂ secretion at diestrus (P < 0.001) after 12h incubation. Overall findings indicate that TNFα locally produced in the cat’s uterus, stimulates PG secretion in an estrous cycle-related manner.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antigenic markers of protein genes and their nomenclature in cattle
Autorzy:
Wegrzyn, J
Skiba, E
Powiązania:
https://bibliotekanauki.pl/articles/2046670.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alpha-globulin
lipoprotein
antigenic marker
nomenclature
beta-globulin
immunodiffusion
agar gel
gene
immunoglobulin
cattle
chromatography
protein
immunoelectrophoresis
Opis:
The results of previous research on antigenic (allotypic) specificities of immunoglobulins, alpha-globulins, beta-globulins and lipoproteins in cattle are reviewed. The suitability of heteroantibodies and alloantibodies for identification of this type of markers was analysed. New names/symbols of antigenic markers of proteins in cattle, identified at the Department of Immuno- and Cytogenetics of the National Research Institute of Animal Production (Balice/Kraków, Poland), were introduced.
Źródło:
Journal of Applied Genetics; 1997, 38, 3; 319-327
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic polymorphism and quantitative variation of alpha-amylases from rye endosperm
Autorzy:
Masojc, P
Lapinski, M.
Larsson-Raznikiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2048192.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chromosome
rye
Secale cereale
colorimetric assay
isoenzyme
alpha-amylase
electrophoresis
endosperm
isoelectric focusing
immunoelectrophoresis
cereal cultivar
genetic polymorphism
Opis:
α-Amylase isozymes from rye endosperm were analysed by means of isoelectric focusing, polyacrylamide gel electrophoresis, immunoelectrophoresis and colorimetric assay. Α-AMY 1 (high pI) group was separated into 13 IEF bands, whereas in group α-AMY2 (low pI) 2 intensive and 6-8 faint bands were found. Two linked (2±1 cM) polymorphic loci and a single locus with two alleles encoding for α-AMY 1 and α-AMY 2 groups, respectively, were identified after genetic analysis of the IEF patterns. All α-amylase isozymes developed on PAGE, were shown to belong to α-AMY 1 group. It was demonstrated that a single PAGE isozyme corresponds to 2-4 separate IEF bands and that most of the IEF bands can be attributed to more than one PAGE isozyme. The activity of α-amylases from PAGE zone I was 2.3 times higher than the activity of zone II isozymes. A strong correlation between the activity and protein amount of particular α-AMY 1 isozymes (r=0.94) was found.
Źródło:
Journal of Applied Genetics; 1995, 36, 3; 197-204
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic regulation of alpha-amylase synthesis in rye [Secale cereale L.] grain
Autorzy:
Masojc, P
Stojalowski, S
Lapinski, M
Miazga, D
Powiązania:
https://bibliotekanauki.pl/articles/2047279.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
enzyme synthesis
activity
chromosome
rye
Secale cereale
crossing
alpha-amylase
sprouting line
duplicate gene
addition line
genetic regulation
Opis:
Genetic analysis of two rye interline crosses and a set of wheat/rye chromosomal addition lines was performed to reveal the mechanism underlying wide variation range of alpha-amylase activity in sound grain. The long arm of chromosome 6R was found to be responsible for increased enzyme synthesis during late stages of triticale grain maturation. Only nuclear genes seemed to control alpha-amylase activity, as reciprocal crosses between rye lines showed no maternal effects. Low enzyme activity showed complete dominance over high level of its synthesis. Segregation ratios, observed in F₂ and BC₁ crosses, indicated that recessive alleles at two independent duplicative loci underlie intensive alpha-amylase production.
Źródło:
Journal of Applied Genetics; 1996, 37, 2; 141-152
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Local effect of progesterone infusion into ovarian artery on activin A and inhibin alpha-subunit secretion during the middle luteal phase in gilts
Autorzy:
Wasowska, B
Stefanczyk-Krzymowska, S.
Powiązania:
https://bibliotekanauki.pl/articles/30684.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
dimeric glycoprotein
activin
inhibin
growth factor-beta
progesterone infusion
ovarian artery
alpha-subunit
secretion
exogenous progesterone
local feedback
gilt
middle luteal phase
Opis:
The present study was undertaken to elucidate whether an increased, but physiological, amount of progesterone (P4) supplied to the porcine corpus luteum affects luteal secretion of activin A and inhibin a-subunit (Inha) in freely moving gilts. On day 9 of the estrous cycle (EC), both ovarian arteries and both ovarian veins of gilts (n=5) were cannulated. Progesterone was infused into the right ovarian arteries in gilts on days 10, 11 and 12 of the EC at a rate adequate to its physiological retrograde transfer found during the middle luteal phase of the EC. The P4 infusion rate was 0.62 μg/min (day 10), 2x0.62 μg/min (day 11) and 3x0.62 μg/min (day 12). The left ovarian arteries were infused with saline (control). Blood samples were collected from both ovarian veins on days 10-12 of the EC before and after P4 or saline infusion. The mean plasma activin A level in the ovarian vein ipsilateral to the P4-infused ovary was higher (PcO.OOOl) on days 10-12 of the EC than this found in the contralateral ovarian vein. The level of activin A in the ovarian vein ipsilataral to the infusion of P4 was higher on days 11 (PcO.Ol) and 12 (P<0.0001) and tended to be higher (P<0.07) on day 10 of the EC than this in contralateral ovarian vein. The level of Inha in the ovarian vein ipsilateral to the P4-infused ovary on days 10-12 of the EC was not significantly different (P>0.05) than this found in the contralateral ovarian vein. The results of the present study indicate that a local elevation of P4 concentration in blood supplying the ovary during the middle luteal phase of the porcine EC affects ovarian secretion of activin A. The effect of P4 on the secretion of activin A suggested the existence of a short regulatory loop of a positive feedback between P4 being retrogradely transferred into the ovary and the secretion of this peptide.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 1; 97-104
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations of Properties of Moulding Sands with Resins Applied in the Alphaset Technology
Badanie właściwości mas z żywicami stosowanymi w technologii Alphaset
Autorzy:
Holtzer, M.
Bobrowski, A.
Drożyński, D.
Makselon, J.
Isendorf, B.
Powiązania:
https://bibliotekanauki.pl/articles/383250.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanical properties
technological properties
moulding sand
alpha-set technology
alkaline organic binder
właściwości mechaniczne
właściwości technologiczne
masa formierska
technologia Alphaset
alkaliczne spoiwo organiczne
Opis:
In process, known as the ALPHASET process, the alkaline phenol-formaldehyde resin, resol type, containing below 1% of hydrous phenol and below 0.2 % of free formaldehyde - is applied. As hardeners esters are used. An alkaline character of the process allows an application of all kinds of sands, including highly alkaline, This moulding sands can be used for moulds and cores of all alloys, and are especially advantageous for steel castings, in which hot cracks can occur. The following systems of a basic character containing phenol-formaldehyde resins were selected for investigations: REZOLIT AM resin + Prestal R-1/5 hardener; ESTROFEN resin + PR6 hardener; AVENOL 700 NB resin + Katalysator 4040 hardener. High-silica sand from Biała Góra was used as a matrix. Laboratory tests were performed under the following conditions: temperature 20-22°C, humidity 35-50%. Selection of the proper resin as a binding agent for moulding sands must be preceded by the economic analysis of costs of resins and hardeners. This selection should be done on the grounds of the moulding sand technological requirements and the produced assortment of castings and their weight.
W procesie, znanym szerzej jako ALPHASET, stosuje się alkaliczną żywicę fenolowo-formaldehydową typu rezolowego, zawierającą poniżej 1% wolnego fenolu i poniżej 0,2 % wolnego formaldehydu. Jako utwardzacze stosuje się estry, za pomocą których można regulować szybkość utwardzania. Alkaliczny charakter procesu umożliwia zastosowanie wszystkich rodzajów piasku jako osnowy, włącznie z silnie zasadowymi. Powyższe masy mogą być stosowane na formy i rdzenie w zasadzie do wszystkich stopów, przy czym są szczególnie korzystne w przypadku odlewów staliwnych, w których mogą występować pęknięcia na gorąco. Do badań wytypowano następujące układy o charakterze zasadowym zawierające żywice fenolowo-formaldehydowe: żywica Rezolit AM + utwardzacz Prestal R-1/5, żywica Estrofen + utwardzacz PR6, żywica Avenol 700 NB + utwardzacz Katalysator 4040. Jako osnowę mas stosowano piasek kwarcowy Biała Góra. Badania laboratoryjne wykonywano w następujących warunkach: temperatura 20-22°C, wilgotność 35—50%. Dobór właściwej żywicy, jako spoiwa masy musi poprzedzić analiza ekonomiczna kosztów zakupu żywic i odpowiednich utwardzaczy. Dobór ten musi być dokonany w oparciu na wymagania technologiczne masy oraz produkowany asortyment odlewów i ich ciężar.
Źródło:
Archives of Foundry Engineering; 2013, 13, 1 spec.; 31-37
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Enhanced mass regeneration of pro-vitamin A cassava (Manihot esculenta Crantz) varieties through multiple shoot induction from enlarged axillary buds
Autorzy:
Opabode, J.T.
Powiązania:
https://bibliotekanauki.pl/articles/80396.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mass propagation
provitamin A
cassava
Manihot esculenta
genetic fidelity
6-benzylaminopurine
alpha-naphthalene acetic acid
indole butyric acid
shoot induction
axillary bud
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł

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