Temat: BETA - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Beta-titanium biomedical alloy: effect of thermal processing on mechanical properties
Stop beta-tytanu do zastosowań biomedycznych: wpływ obróbki cieplnej na właściwości mechaniczne
Autorzy:: Sudhakar, K. V.
Konen, K.
Floreen, K.
Powiązania:: https://bibliotekanauki.pl/articles/354286.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: stop beta tytanu
obróbka cieplna
biomedycyna
thermal processing
beta-titanium biomedical alloy
mechanical properties
microstructure
fractography
Opis:: A new betatitanium alloy (Ti-3Al-5V-6Cr-3Mo-3Zr) was investigated as a function of heat treatment to evaluate its mechanical properties. The cold drawn beta-titanium alloy was subjected to betaannealing as well as solution treatment and aging treatments. The mechanical properties were evaluated using MTS Landmark-servo hydraulic Universal Testing Machine. The beta-titanium alloy demonstrated an excellent combination of strength and ductility for both beta annealing and solution treatment and aging conditions. The influence of thermal treatments on microstructure was studied with HiRox digital microscope. The fracture morphology investigated revealed predominantly cup and cone/dimpled fracture surface features demonstrating excellent toughness in addition to high strength and low stiffness that are suitable for biomedical applications.
Badano wpływ obróbki cieplnej na właściwości mechaniczne nowego stopu betatytanu (Ti-3Al5V-6Cr-3Mo-3Zr). Ciągniony na zimno stop betatytanu poddano wyżarzaniu, a takze przesycaniu i starzeniu. Właściwości mechaniczne badano za pomocą uniwersalnej maszyny wytrzymałościowej MTS Landmark-servo. Stop betatytanu wykazał doskonałe połączenie wytrzymałości i ciągliwości zarówno po wyżarzaniu, przesycaniu i starzeniu. Wpływ obróbki termicznej na mikrostrukturę badano przy użyciu cyfrowego mikroskopu HiRox. Badania morfologii przełomów wykazały głównie wgłębienia w kształcie kielicha i stożka co wskazuje na doskonałą twardość w połączeniu z wysoką wytrzymałością i niską sztywnością, które są odpowiednie do zastosowań biomedycznych.
Źródło:: Archives of Metallurgy and Materials; 2012, 57, 3; 755-757
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Hydrolysis of lactose from cheese whey using a reactor with [beta]-galactosidase enzyme immobilised on a commercial uf membrane
Autorzy:: Regenhardt, S.A.
Mammarella, E.J.
Rubiolo, A.C.
Powiązania:: https://bibliotekanauki.pl/articles/184957.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: membrane bioreactor
immobilised enzyme
beta-galactosidas
lactose hydrolysis
bioreaktor membranowy
enzym unieruchomiony
beta-galaktozydazy
hydroliza laktozy
Opis:: In this study, [Beta]-galactosidase enzyme from Kluyveromyces fragilis was immobilised on a commercial polyethersulfone membrane surface, 10 kDa cut-off. An integrated process, concerning the simultaneous hydrolysis–ultrafiltration of whey lactose was studied and working conditions have been fixed at 55[degrees]C and pH 6.9, the same conditions that are used for the industrial process of protein concentration. For the immobilisation, best results were obtained using 5% (v/v) of glutaraldehyde solution and 0.03 M galactose; the total activity recovery coefficient (TARC) was 44.2%. The amount of immobilised enzyme was 12.49 mg with a total activity of 86.3 LAU at 37[degrees]C, using 5% (w/v) lactose solution in phosphate buffer (100 mM pH 6.9). The stability of the immobilised enzyme was approximately 585 fold higher in comparison with the stability of free enzyme. Multipoint covalent immobilisation improves the stability of the enzyme, thereby enhancing the decision to use the membrane as a filtering element and support for the enzyme immobilisation.
Źródło:: Chemical and Process Engineering; 2013, 34, 3; 375-385
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Mechanical Properties and Corrosion Behaviors of Aged Ti-4Mo-4Cr-X (X = Sn, V, Zr) Alloys for Metallic Biomaterials
Autorzy:: Lee, Kwangmin
Lee, Gunhee
Powiązania:: https://bibliotekanauki.pl/articles/355252.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: beta Ti-alloy
metallic biomaterials
aging
potentiodynamic polarization
Opis:: The purpose of this study was to investigate the mechanical properties of beta type aged Ti-4Mo-4Cr-X (X = V, Sn, Zr) quaternary alloy for use as a cardiovascular stent. Titanium (Ti) alloys were fabricated using a vacuum arc remelting furnace process. To homogenize the specimens of each composition and remove the micro segregation, all cast specimens were subjected to homogenization at 850°C for 4 h, which was 100°C higher than the β-transus temperature of 750°C. The tensile strength and elongation of the aged Ti-4Mo-4Cr-X (X = V, Sn, Zr) alloys were increased as compared to the homogenized alloys. In addition, many α/β interface boundaries formed after aging treatment at 450°C, which acted as inhibitors of strain and caused an increase in tensile strength. The elongation of Ti-4Mo-4Cr-X alloys consisting of α + β phases after aging treatment was improved by greater than 30%. Results of a potentiodynamic polarization test showed that the lowest current density of Ti-4Mo-4Cr-4Sn with1.05 × 10^-8 A/cm² was obtained. The present Ti-4Mo-4Cr-X alloys showed better corrosion characteristics as compared to the 316L stainless steel and L605 (Co-Cr alloy) cardiovascular stent alloys.
Źródło:: Archives of Metallurgy and Materials; 2020, 65, 4; 1297-1301
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Evaluation of a handheld device for the measurement of beta-hydroxybutyrate in capillary blood obtained by the puncture of the vulva as well as in venous whole blood in cattle
Autorzy:: Khol, J.L.
Freigassner, K.
Stanitznig, A.
Tichy, A.
Wittek, T.
Powiązania:: https://bibliotekanauki.pl/articles/2087481.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: beta-hydroxybutyrate
subclinical ketosis
capillary blood
handheld device
Źródło:: Polish Journal of Veterinary Sciences; 2019, 3; 557-564
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Gamma-secretase complex in plant cells
Autorzy:: Skrzypczak, T.
Smolarkiewicz, M.
Wojtaszek, P.
Powiązania:: https://bibliotekanauki.pl/articles/80341.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
gamma-secretase
beta-amyloid peptide
beta-amyloid precursor protein
proteolysis
calcium homeostasis
apoptosis
synapse
intercellular junction
Arabidopsis
plant cell
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

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Skocz do pozycji: 6.

Tytuł:: Effect of Cold Rolling on Electrochemical Impedance Behavior of New β-Type Ti-6Mo-6V-5Cr-3Sn-2.5Zr Alloy
Autorzy:: Song, Hocheol
Zakiyuddin, Ahmad
Kim, Sinhye
Lee, Kwangmin
Powiązania:: https://bibliotekanauki.pl/articles/351262.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: beta-titanium alloy
electrochemical impedance spectroscopy
potentiodynamic polarization
Opis:: In this study, the corrosion properties of Ti-6Mo-6V-5Cr-3Sn-2.5Zr alloy were investigated as a function of the cold rolling ratio and annealing temperature. The annealing treatment was carried out at temperature of 680°C, 730°C, and 780°C. The highest corrosion potential observed in the specimen with a 10% rolling ratio was 179 mV, which was more positive than that of the nonrolled specimen (–0.214 V_SSC). The lowest corrosion current density (1.30×10^-8 A/cm²) was observed in the non-rolled specimen which suggested that the integrity of its passive oxide layer was superior to that of the cold-rolled specimens. Time-dependent EIS evaluation revealed that the consistency of the passive oxide layer was highly affected by the subjected rolling ratio over time.
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 2; 487-490
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The study on possible mechanisms involved in gametic embryogenesis of sugar beet (Beta vulgaris L.)
Autorzy:: Cichorz, S.
Malicka, M.
Goska, M.
Powiązania:: https://bibliotekanauki.pl/articles/951250.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: sugar-beet
Beta vulgaris
genotype
doubled haploid
haploidization
gametic embryogenesis
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Estimation of the share of components of different ploidy in anisoploid sugar-beet [Beta vulgaris L.] populations by flow cytometry
Autorzy:: Sliwinska, E
Jansen, R
Powiązania:: https://bibliotekanauki.pl/articles/2046829.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Beta vulgaris
ploidy determination
breeding
flow cytometry
seed production
sugar-beet
Opis:: Flow cytometry is commonly used in sugar-beet breeding and seed production for ploidy estimation. By means of this method individual plants as well as plant populations can be analysed. An interpretation of histograms obtained from anisoploid populations, however, causes some problems to the breeder. Bulks of diploid, triploid and tetraploid sugar-beet plants in different proportion and ploidy combinations (2x + 3x, 2x + 4x, and 3x + 4x) were tested in order to determine the relation between the actual share of the components of different ploidy levels in tested populations and that calculated on the basis of flow cytometry. In this way agraph for estimation of the share of different ploidy components was obtained. Repeatability of the results proves the usefulness of flow cytometric analysis of anisoploid plant populations in breeding and seed production of polyploid crops.
Źródło:: Journal of Applied Genetics; 1997, 38, 2; 151-160
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The correlation between size of Beta vulgaris L. flower buds and the stadium of pollen grains development
Autorzy:: Gapinska, M.
Glinska, S.
Michlewska, S.
Powiązania:: https://bibliotekanauki.pl/articles/81019.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
Beta vulgaris
flower bud
pollen grain
pollen development
androgenesis
inflorescence
light microscopy
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

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Skocz do pozycji: 10.

Tytuł:: 17 beta-estradiol affects proliferation and apoptosis of canine bone marrow mesenchymal stem cells in vitro
Autorzy:: Zhou, Z.-H.
Gu, C.-W.
Li, J.
Huang, X.-Y.
Deng, J.-Q.
Shen, L.-H.
Cao, S.-Z.
Deng, J.-L.
Zuo, Z.-C.
Wang, Y.
Ma, X.-P.
Ren, Z.-H.
Yu, S.-M.
Powiązania:: https://bibliotekanauki.pl/articles/2087308.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: apoptosis
bone marrow mesenchymal stem cells (BMSCs)
canine
proliferation
17 beta-estradiol (E2)
Źródło:: Polish Journal of Veterinary Sciences; 2020, 23, 2; 235-245
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Flow cytometric estimation of ploidy in anisoploid sugar-beet populations
Autorzy:: Sliwinska, E
Steen, P.
Powiązania:: https://bibliotekanauki.pl/articles/2048141.pdf
Data publikacji:: 1995
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: production
Beta vulgaris
poliploid cultivar
ploidy determination
nuclear DNA
flow cytometry
DNA
seed
sugar-beet
Opis:: Determination of ploidy level is a common practice in sugar-beet breeding and seed production. Lately many laboratories have replaced microscopic chromosome counting by flow cytometric estimation of the nuclear DNA content. The possibility of direct estimation of cytological composition in anisoploid populations instead of individual plant analyses was investigated. Diploid, triploid and tetraploid sugar-beet lines as well as their mixtures were tested. The results obtained show that the suggested method is fast, simple and, after a proper transformation of the computer values, could be applied in breeding and seed production of polyploid crops. Precise estimation of contamination by small admixture of seeds or plants of undesirable ploidy, however, requires individual plant rather than population analyses.
Źródło:: Journal of Applied Genetics; 1995, 36, 2; 111-118
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: SSCP polymorphism within 5 region of bovine lactoglobulin [LGB] gene
Autorzy:: Kaminski, S
Zabolewicz, T.
Powiązania:: https://bibliotekanauki.pl/articles/2044462.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: lactoglobulin gene
polymorphism
SSCP method
cattle
gene transcription
electrophoresis
hormonal receptor
mutation
beta-lactoglobulin
milk
Opis:: In the paper the detection of the SSCP polymorphism within the 5’ fragment of bovine beta-lactoglobulin (LGB) gene is described. The 5’ fragment of LGB gene (209 bp) was PCR-amplified and then subjected to electrophoresis allowing the detection of SSCP polymorphism. Among 124 animals (50 cows and 74 bulls) six SSCP patterns were identified and named Rl, R2, R3, R4, R5 and R6, which occured with the frequency of 0.32, 0.51, 0.09, 0.06, 0.01 and 0.01, respectively. The PCR-SSCP method is simple, fast, and relatively inexpensive. The SSCP polymorphism reported in the paper may be useful in looking for the associations between different SSCP patterns and LGB gene expression and milk properties.
Źródło:: Journal of Applied Genetics; 1998, 39, 1; 97-102
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

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

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Skocz do pozycji: 14.

Tytuł:: Differential expression of epidermal growth factor and transforming growth factor beta isoforms in dog endometrium during different periods of the estrus cycle
Autorzy:: Bukowska, D.
Kempisty, B.
Jackowska, M.
Wozna, M.
Antosik, P.
Piotrowska, H.
Jaskowski, J.M.
Powiązania:: https://bibliotekanauki.pl/articles/30107.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: expression
epidermal growth factor
transforming growth factor-beta
isoform
dog
endometrium
different period
oestrous cycle
Opis:: Both epidermal growth factor (EGF) and transforming growth factor (TGF) play an important physiological role in the processes of proliferation and differentiation of several different cell types. However, the expression profiles of these factors in domestic bitches endometrium are still poorly recognized. The aim of the present study was to identify and analyze the differential expression of these factors in various stages of the estrus cycle. Endometrial tissue from proestrus (n=17), estrus (n=10), day 10 diestrus (n=15), day 35 diestrus (n=18) and anestrus (n=25) was collected soon after ovariohysterectomy. Total RNA was isolated from the endometrium by means of Chomczyński and Sacchi method, treated by DNase I, and reverse- transcribed into cDNA. Quantitative analysis of EGF, TGFβ1, TGFβ2, and TGFβ3 cDNA was performed by real-time quantitative polymerase chain reaction (RT-PCR). EGF expression in canine endometrium was increased in the estrus stage as compared to proestrus (P<0.05), day 10 diestrus (P<0.05), day 35 diestrus (P<0.01) and anestrus (P<0.001). We also found the differences in EGF expression between day 10 and day 35 of estrus as well as between day 35 of estrus with anestrus (P<0.05, P<0.01, respectively). The TGFf1 transcript contents were also higher in estrus as compared to other stages (P<0.01). The TGFβ2 and TGFβ3 in the estrus stage was increased compared to proestrus, day 10 diestrus, day 35 diestrus and anestrus (P<0.05). We proved that expression of EGF and TGFβ transcript isoforms is related to the phase of estrus in bitches and therefore may be regulated by specific hormone concentrations during these periods. Our results confirm the hypothesis that these growth factors play a role in the regulation of biochemical changes in the endometrial tissues during the estrus cycle.
Źródło:: Polish Journal of Veterinary Sciences; 2011, 14, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: The properties of peroxisomal ascorbate peroxidase from sugar beet (Beta vulgaris ) and expressed in E. coli
Autorzy:: Kurnik, K.
Skorupa-Klaput, M.
Tyburski, J.
Powiązania:: https://bibliotekanauki.pl/articles/80526.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
ascorbate peroxidase
sugar-beet
Beta vulgaris
Escherichia coli
expression
peroxidase activity
protein extract
BL21 cell
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

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