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Wyświetlanie 1-15 z 38
Tytuł:
Elucidating molecular control of terpenoid and phenylpropanoid biosynthesis in Agastache rugosa – an East Asian medicinal plant
Autorzy:
Bielecka, M.
Zielinska, S.
Pencakowski, B.
Pytys, A.
Praszmo, A.
Matkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/951244.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
physiological function
Agastache rugosa
bioactive compound
natural compound
essential oil
terpenoid
phenylpropanoid
gene expression
biosynthetic pathway
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
Artykuł
Tytuł:
Evaluation of some microbial agents, natural and chemical compounds for controlling tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)
Autorzy:
El-Ghany, N.M.A.
Abdel-Razek, A.S.
Ebadah, I.M.A.
Mahmoud, Y.A.
Powiązania:
https://bibliotekanauki.pl/articles/65257.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
microbial agent
natural compound
chemical compound
biopesticide
natural insecticide
controlling
tomato
leaf miner
Tuta absoluta
Lepidoptera
Gelechiidae
Opis:
Solanaceous plants have a great economic impact in Egypt. These groups of plants include potatoes, tomatoes and eggplants. The new invasive pest of tomatoes, Tuta absoluta (Meyrick) causes the greatest crop losses which can range from 60 to 100%. After its detection in Egypt during the last half of 2009, it spread quickly to all provinces in the country. We aiming to propose a sustainable control program for this devastating pest. In this research we tested three groups of control agents. The first was microbial and natural, the second – plant extracts and the third – chemical insecticides. Our results showed that the impact of T. absoluta can be greatly reduced by the use of sustainable control measures represented by different insecticide groups. Bioassay experiments showed that this devastating pest can be controlled with some compounds that give high mortality rates. Of these compounds, spinosad and Beauveria bassiana, microbial control agents, followed by azadirachtin, gave the best results in controlling T. absoluta. Of the chemical insecticides, lambda-cyhalotrin was the most effective, followed by lufenuron and profenofos. In conclusion we encourage farmers to use microbial and natural control measures in combating the tomato leafminer, T. absoluta, in Integrated Pest Mangement (IPM) programs.
Źródło:
Journal of Plant Protection Research; 2016, 56, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How complex are deverbal nouns? Argument and event structure in synthetic -ing compounds in English
Autorzy:
Wasak, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/2054285.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
noun
synthetic compound
argument structure
Distributed Morphology
Opis:
In the morphosyntactic literature, there exist two approaches to the problem of argument structure in English nominal synthetic compounds such as furniture moving or dog training. According to Borer (2012), such synthetic compounds belong to the class of referential nominals and thus lack argument structure. On the other hand, Alexiadou (2017) maintains that the external argument is present in the structure of synthetic compounds due to their ability to co-occur with by-phrases. In this paper, we present an extensive set of corpus data to show that synthetic -ing compounds do project the external argument, which is evidenced by their ability to license not only by-phrases but also agent-oriented adjectives and instrumental phrases. Importantly, the corpus data indicates that certain synthetic -ing compounds display the capacity to occur in aspectual contexts; nominal compounds fall in two classes in that regard.
Źródło:
Linguistica Silesiana; 2020, 41; 19-38
0208-4228
Pojawia się w:
Linguistica Silesiana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of Susceptibility and Evaluation of Causes of Cracks Formation in Braze-Weld Filler Metal in Lap Joints Aluminum – Carbon Steel Made with Use of CMT Method and High Power Diode Laser
Autorzy:
Adamiak, M.
Wyględacz, B.
Czupryński, A.
Górka, J.
Powiązania:
https://bibliotekanauki.pl/articles/958197.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
braze-welding
intermetallic compound phase
high power diode laser
brazing
Opis:
In this article results of studies on cracks formation susceptibility in braze-welded joints of thin aluminum sheets and double-sided zinc galvanized steel sheets for car body parts made by laser brazing with high power diode laser ROFIN DL 020 and CMT MIG-brazing, with filler material in form of powder and wire accordingly, were presented. Optimal welding parameters were determined by visual acceptance criteria. On joints made with optimal parameters further examinations were carried. Results of macro- and microscopic metallographic examinations, structural roentgenography, EDS microanalysis and hardness tests were presented. Causes of brittle intermetallic Fe-Al phases formation in Al-matrix filler metal in dissimilar aluminum – zinc plated carbon steel joints were pointed.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 4; 2113-2123
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controlled freeze physics methodology for extra virgin olive oil (EVOO) stabilization
Autorzy:
Giannakopoulos, E.
Zisimopoulos, D.
Georgiou, C.
Argyropoulou, K.
Salahas, G.
Powiązania:
https://bibliotekanauki.pl/articles/79863.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
extra virgin olive oil
antioxidant capacity
phenolic compound
oil quality
storage
freezing
stabilization process
phenolics
quality index
aromatic compound
free radical
lipid peroxidation
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:
The effect of some herbal extracts and pesticides on the biological parameters of Bemisia tabaci (Genn.) (Hem.: Aleyrodidae) pertaining to tomato grown under controlled conditions
Autorzy:
Jafarbeigi, F.
Samih, M.A.
Zarabi, M.
Esmaeily, S.
Powiązania:
https://bibliotekanauki.pl/articles/961660.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bemisia tabaci
cotton whitefly
tomato
biological parameters and herbal compound
Opis:
The sweet potato whitefly, Bemisia tabaci (Genn.) (Biotype A: Hem.: Aleyrodidae) is one of the most important pests in Iran. The development of alternative methods that are not chemical applications, is necessary in pest management for the sake of human health and for the safety of the environment. In this research project, the effect of four herbal compounds Fumaria parviflora Lam. (Fumariaceae), Teucrium polium L. (Lamiaceae), Calotropis procera (Willd.) R. Br. (Asclepiadaceae), Thymus vulgaris L. (Lamiaceae) on the same biological parameters of cotton whitefly were compared with the insecticides azadirachtin and pymetrozin. The results showed significant differences between herbal compounds and insecticides on: egg longevity (F6, 39 = 2.96, p < 0.05), pupa longevity (F6, 37 = 4.49, p < 0.01) and adult longevity (F6, 31 = 4.47, p < 0.01); egg mortality (F6, 39 = 6.71, p < 0.001), total egg mortality (F6, 39 = 6.71, p < 0.001), sex ratio (female) (F6, 30 = 3.49, p < 0.01), oviposition period (F6,31 = 7.50, p < 0.001) and total fecundity/female (F6, 31 = 8.23, p < 0.001). These results indicated that a fumitory extract and pymetrozin had the best effect on longevity and mortality, respectively. According to the results, the fumitory had a noticeable effect on the different life stages of the sweet potato whitefly.
Źródło:
Journal of Plant Protection Research; 2012, 52, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The endogenous phenolic compounds during bulb formation in Lachenalia sp. in vitro cultures under different lighting conditions
Autorzy:
Bach, A.
Kopczynska, A.
Dziurka, K.
Dziurka, M.
Powiązania:
https://bibliotekanauki.pl/articles/951275.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Lachenalia
phenolic compound
bulb formation
in vitro culture
light condition
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
Artykuł
Tytuł:
Metabolism of biologically active sulfur compounds in broccoli in vitro callus cultures
Autorzy:
Kwiecien, I.
Chochol, E.
Powiązania:
https://bibliotekanauki.pl/articles/951300.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
sulphur compound
biological activity
metabolism
broccoli
in vitro
callus culture
amino acid
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
Artykuł
Tytuł:
The influence of some compounds on growth of Phoma exigua var. foveata in vitro
Autorzy:
Giebel, J
Dopierala, U.
Powiązania:
https://bibliotekanauki.pl/articles/66594.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polyamine biosynthesis
potato gangrene
plant protection
Phoma exigua var.foveata
growth
phenolic compound
Opis:
In laboratory condition phenolic compounds, such as scopoletin, the ferulic, p-coumaric and trans-cinnamic acid retarded growth of Phoma exigua var. foveata mycelium. Equal effect revealed inhibitors of polyamine biosynthesis, DFMA and DFMO. A role of tested substances in potato gangrene pathogenesis is discussed.
W kulturach in vitro związki fenolowe, takie jak skopoletyna, kwasy: ferulowy, p-kumarowy i trans-cynamonowy ograniczały wzrost grzybni Phoma exigua var. foveata, sprawcę gangreny ziemniaka. Podobne działanie wykazywały inhibitory biosyntezy poliamin, difluorometyloarginina (DFMA) oraz difluorometyloornityna (DFMO). Przeprowadzono dyskusję nad ewentualną rolą testowanych substancji w patogenezie gangreny ziemniaka.
Źródło:
Journal of Plant Protection Research; 1998, 38, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prépositions Grecques Ἐν and εἸσ — Fonctions, Emplois Et Valeurs Sémantiques De Leur Rôle Préverbal Dans Le Nouveau Testament
Greek prepositions Ἐν and εἸσ — functions, uses and semantic values of their pre-verbal role in the New Testament
Autorzy:
Żłobińska-Nowak, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/2119951.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Greek prepositions ἐν and εἰς
preverbs
prefixes
compound verbs
biblical Greek
French
Opis:
The author analyzes the two most common synonymous Greek prepositions ἐν and εἰς in the texts of the New Testament. She begins with a description of the basic syntactic functions of Greek prepositions, then goes on to analyze the status of two selected prepositions, pointing to the differences in their meaning and their dependence on the connectivity with specific noun cases. The last part of the text is devoted to the pre-verbal value of the prepositions under the study and the compound verbs based on them, which are combined with the verbs without prefixes, which are their basis. This starting point allows conclusions of a syntactic-semantic nature based on the use of the studied forms in the Greek New Testament texts.
Źródło:
Linguistica Silesiana; 2022, 43; 195-215
0208-4228
Pojawia się w:
Linguistica Silesiana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An intelligent compound gear-bearing fault identification approach using Bessel kernel-based time-frequency distribution
Autorzy:
Andrews, Athisayam
Manisekar, Kondal
Powiązania:
https://bibliotekanauki.pl/articles/2203369.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
compound gear-bearing faults
Bessel transform
time-frequency distribution
convolutional neural network
Opis:
The most crucial transmission components utilized in rotating machinery are gears and bearings. In a gearbox, the bearings support the force acting on the gears. Compound Faults in both the gears and bearings may cause heavy vibration and lead to early failure of components. Despite their importance, these compound faults are rarely studied since the vibration signals of the compound fault system are strongly dominated by noise. This work proposes an intelligent approach to fault identification of a compound gear-bearing system using a novel Bessel kernel-based Time-Frequency Distribution (TFD) called the Bessel transform. The Time-frequency images extracted using the Bessel transform are used as an input to the Convolutional Neural Network (CNN), which classifies the faults. The effectiveness of the proposed approach is validated with a case study, and a testing efficiency of 94% is achieved. Further, the proposed method is compared with the other TFDs and found to be effective.
Źródło:
Metrology and Measurement Systems; 2023, 30, 1; 83--97
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anodowe roztwarzanie kobaltu w roztworach metanolowych z niską zawartością wody
Anodic Dissolution of Cobalt in Solutions of Methanol with Low Water Content
Autorzy:
Waliczek, A.
Starowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/382825.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
kobalt
roztwór metanolowy
roztwarzanie anodowe
związek kobaltu
cobalt
methanol solution
anodic dissolution
cobalt compound
Opis:
Prezentowana praca przedstawia elektrochemiczne badania kobaltu w bezwodnym metanolowym roztworze LiCl, oraz w roztworach zawierających odpowiednio 1, 3 i 5 % wody. Krzywe polaryzacyjne kobaltu, we wszystkich badanych środowiskach mają podobny kształt z jednym pikiem anodowym. Stężenie wody nie ma istotnego wpływu na sam proces anodowego roztwarzania. Podczas chronoamperometrycznej polaryzacji kobaltu zarówno w roztworze bezwodnym jak i roztworach zawierających wodę otrzymano koloidalne roztwory związków kobaltu. Otrzymane koloidy były analizowane przy pomocy spektroskopii w świetle widzialnym i nadfiolecie (UV-VIS) oraz spektroskopii w podczerwieni (FTIR). Badania spektroskopowe wykazały istotny wpływ wody na produkty anodowego roztwarzania kobaltu w roztworach metanolowych. Zaobserwowano również, że cząsteczki alkoholu silnie adsorbują się na powierzchni otrzymanych związków kobaltu, co utrudnia identyfikację produktu końcowego. Celem pracy jest anodowe roztwarzanie kobaltu stosując metanol jako rozpuszczalnik.
This work presents electrochemical investigations of cobalt in unhydrous methanol solution of LiCl and in the corresponding solutions containing 1, 3, and 5 % of water. The curves for cobalt polarisation in all the investigated environments have similar shape with a single anodic peak. Water concentration does not influence considerably the proces of anodic dissolution. Colloidal solutions of cobalt compounds were obtained during chronoamperommetric polarisation of cobalt both in unhydrous solution and in the solutions containing water. The resulting solutions were analysed by means of ultraviolet and visible light spectroscopy (UVVIS) and infrared spectroscopy (FTIR). The spectroscopic investigations revealed a considerable influence of water on the products of anodic dissolution of cobalt in methanol based solutions. It was also observed that alcohol particles are strongly adsorbed on a surface of the obtained cobalt compounds, what hampers the identification of the final product. The aim of the study is the anodic dissolution of cobalt using methanol as solvent.
Źródło:
Archives of Foundry Engineering; 2015, 15, 4 spec.; 143-146
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro cultures of Eryngium alpinum L. – an endangered and protected species as a source of plantlets and biomass rich in bioactive compounds
Autorzy:
Kikowska, M.
Thiem, B.
Powiązania:
https://bibliotekanauki.pl/articles/951221.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
in vitro culture
Eryngium alpinum
endangered species
protected species
plantlet
biomass
bioactive compound
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
Artykuł
Tytuł:
The influence of selenium on antifungal activity of extracts of Codonopsis pilosula hairy roots
Autorzy:
Janas, J.
Bogusz, D.
Wielanek, M.
Sklodowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/80028.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
selenium
antifungal activity
extract
Codonopsis pilosula
hairy root
polysaccharide
phenolic compound
saponin
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:
Production, characterization and iron binding affinity of hydroxamate siderophores from rhizosphere associated fluorescent Pseudomonas
Autorzy:
Deori, M.
Jayamohan, N.S.
Kumudini, B.S.
Powiązania:
https://bibliotekanauki.pl/articles/65031.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
iron-binding compound
hydroxamate siderophore
siderophore
physical parameter
rhizosphere
Pseudomonas
succinate medium
mutation
Opis:
Fluorescent Pseudomonas (FP) is a major group of plant growth promoting rhizobacteria and a well-known synthesizer of siderophores, which imparts a selective advantage on rhizosphere competence and their biocontrol traits. The present study was aimed at examining the factors affecting the production of siderophores and their potential biocontrol traits. Sixteen FP isolates were shortlisted based on their siderophore-producing ability in chrome azural S medium. The isolates were checked for variations in siderophore production under varying incubation times, temperatures, pH, iron (Fe3+) concentrations and mutagens. In addition, the iron binding affinity of siderophores, mycelial inhibition assay and plant growth promotion traits were assessed. Results showed that the siderophore production was highly influenced by the time of incubation, changes in pH, temperature and iron concentration. Chemical characterization showed that the produced siderophores were hydroxamates. Maximum siderophore production was observed at pH 7 whereas UV and EtBr exposure invariably suppressed siderophore production drastically in all isolates. All FPs from maize rhizosphere showed excellent siderophore production which could be due to the competence in strategy-II of the plant rhizosphere and significant growth inhibition on Fusarium oxysporum. Our results suggest the inclination of siderophores to iron, in terms of various criteria affecting production and the possible role of environmental mutations that affect the natural iron harvesting mechanism.
Źródło:
Journal of Plant Protection Research; 2018, 58, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 38

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