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Tytuł:
Effect of different drying treatments on the physicochemical, functional, and antioxidant properties of Bacopa monnieri
Autorzy:
Padhiari, B.M.
Ray, A.
Jena, S.
Champati, B.B.
Sahoo, A.
Halder, T.
Ghosh, B.
Panda, P.C.
Nayak, S.
Powiązania:
https://bibliotekanauki.pl/articles/2096812.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Bacopa monnieri (L.) Wettst
bacoside A
bacopaside I
drying treatments
DPPH assay
HPLC
FT-IR
Opis:
Bacopa monnieri (L.) Wettst is a very high-value medicinal plant that is commonly used for improving cognitive functions. However, the availability of very limited information on the drying method of B. monnieri has prompted to optimize a suitable drying method. The present study therefore aimed to evaluate the influence of the following six drying treatments on the quality of B. monnieri sample: microwave drying at 300 W and 600 W, hot air-drying at 50EC and 70EC, solar drying, and freeze-drying (FD). The quality attributes of the dried samples were comparatively analyzed in terms of color, total color difference, moisture content, water activity (a w), antioxidant activity, and bacoside A and bacopaside I content. The results of this study showed significant differences (P < 0.05) among the different drying methods in International Commission on Illumination (CIE) parameters, namely lightness index (L*), red-green index (a*), and yellow-blue index (b*), ΔE and a w values. Among the samples dried with the six drying methods, freeze-dried B. monnieri samples had an attractive color with the lowest total color difference value (11.415%), a w value (0.15%), and maximum bacoside A (3.389%) and bacopaside I (0.620%) content. Moreover, Fourier transform infrared spectroscopy (FT-IR) analysis showed no major difference in the functional groups in B. monnieri samples processed by the different drying methods. Considering the retention of quality after drying, FD was found to be very effective for future large-scale production of good quality dried B. monnieri products.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 4; 399-409
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of regulated drip irrigation on productivity and physicochemical traits of tomato ‘Tofane’ under hot desert climate
Autorzy:
Azzeddine, C.
Mostapha, B.B.
Houria, C.
Powiązania:
https://bibliotekanauki.pl/articles/1080131.pdf
Data publikacji:
2020
Wydawca:
Instytut Ogrodnictwa
Tematy:
tomato
Tofane cultivar
drip irrigation
desert
dry climate
physicochemical trait
productivity
fruit parameter
fruit yield
fruit quality
Opis:
The impact of regulated drip-irrigation on productivity and fruit quality of tomato ‘Tofane’ has been studied under a warm dry desert climate in southern Algeria. Yield, fruit weight and size, water content and parameters of fruit quality – total soluble solids, phenolic compounds, carotenoids, vitamin C, pH and titratable acidity were determined. Two irrigation treatments were applied in 2012 and 2013: T1, optimal irrigation (100% evapotranspiration – ETc) during the whole growth period (growth stages I, II and III); T2, optimal irrigation during I and II stages, and regulated deficit irrigation (67% ETc) during stage III (from fruit set to full fruit maturity of first and second bunch). T1 treatment during the whole season showed the highest values of soil water potential (Ψsoil), between −0.02 MPa and −0.06 MPa, on depths of 0.3 and 0.6 m, respectively. During stage III, regulated deficit irrigation caused the lowest Ψsoil values, which were between −0.1 MPa and −0.12 MPa on a soil depth of 0.3 and 0.6 m, respectively. Deficit irrigation caused significant decrease of water content in fruits and not significant decrease of fruit weight and size, as well as fruit yield while water saving for irrigation amounted to 10%. Comfort-irrigated tomato plants produced fruits containing significantly higher titratable acidity, total soluble solids and vit. C content. There was a tendency to decrease carotenoid content and increase phenolic content in both years of the study. Due to the possibility of water saving with not significant yield decrease, it seems that the reduction of water use in growth stage III would be an adequate strategy for tomato cultivation in hot, dry climate.
Źródło:
Journal of Horticultural Research; 2020, 28, 1; 93-100
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pharmacokinetics of the recombinant ovine interferon-tau in lambs
Autorzy:
Zhao, J.
Yu, H.Y.
Zhao, Y.
Li, S.Q.
Fu, X.L.
Zhou, W.
Xia, B.B.
Wang, M.L.
Chen, J.
Powiązania:
https://bibliotekanauki.pl/articles/2087588.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bioavailability
ovine interferon-τ
cytopathic effect inhibition assay
pharmacokinetic study
Źródło:
Polish Journal of Veterinary Sciences; 2019, 1; 75-82
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Health behaviour of postmenopausal women after mastectomy – preliminary study
Autorzy:
Pilewska-Kozak, A.B.
Dobrowolska, B.B.
Lepecka-Klusek, C.
Stadnicka, G.
Putowski, L.
Malesa, J.
Palese, A.
Powiązania:
https://bibliotekanauki.pl/articles/3706.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Źródło:
Journal of Pre-Clinical and Clinical Research; 2018, 12, 2
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-criteria decision analysis of occupational stress among healthcare professionals in Nigeria
Autorzy:
Amole, B.B.
Adebiyi, S.O.
Dakare, O.
Powiązania:
https://bibliotekanauki.pl/articles/1918617.pdf
Data publikacji:
2018-06-18
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Occupational stress
Health care professionals
MCDA
AHP
Healthcare service delivery
Nigeria
Opis:
Introduction: Stress among healthcare professionals has become a major issue in healthcare organizations operating at the domestic, international and global fronts. This profession however, requires people to be physically, emotionally and mentally alert, in order to care for other people. Purpose: To ascertain stress factors among healthcare professional in Nigeria. In order to rank and establish causal relationships among the various stress factors using the Multi-Criteria Decision Making methods (MCDM). Materials and methods: A validated AHP-based questionnaires was used to conduct a survey of 386 healthcare professionals from two tertiary teaching hospitals in South-west, Nigeria, using proportional quota sampling procedure. Results: The results reveal that relationship factor has the most significant impact on the stress of healthcare professionals with an Eigen vector of 0.3531. It finds also that the role factor has the least significant criterion, having an Eigen vector of 0.0778. At the global level of ranking the alternative decision occupational stress factor, speed of change has the highest priority, the least being financial problems. Conclusions: In comparison with others, the health care profession is highly stressful, due mainly to the fact that it has a higher rate of psychological distress. Keeping this in mind, this study has examined what determines occupational stress among healthcare professionals in teaching hospitals in Nigeria.
Źródło:
Progress in Health Sciences; 2018, 8(1); 109-121
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alternate bearing affects nutritional status and net assimilation rate of an irrigated olive grove under arid conditions
Autorzy:
Bedbabis, S.
Rouina, B.B.
Camposeo, S.
Clodoveo, M.L.
Gallotta, A.
Palasciano, M.
Ferrara, G.
Powiązania:
https://bibliotekanauki.pl/articles/11543541.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Alternate bearing is a typical behavior of various fruit tree crops and is common among olive cultivars (Olea europæa L. var. sativa Hoffm. e Lk.). Since this phenomenon affects yield and consequently oil production, it is a concern for olive oil industry in order to offer a constant olive oil amount each year. A 4-year field experiment was conducted on cv Chemlali olive trees in ‘on’ and ‘off’ years in order to study, under arid conditions, both annual macro-element balance and net photosynthetic activity. Shoots growth was much higher in the ‘off’ year with respect to the ‘on’ one (+11.70 cm vs. +2.60). Net photosynthesis rate was much higher in the ‘off’ year with respect to the ‘on’ year and the highest values were observed at spring, when there is an intense vegetative growth. Differences for the mineral elements were observed between the ‘on’ and ‘off’ years. Nitrogen accumulated in leaves mainly in spring in the ‘off’ year, whereas high N values were detected also at the end of summer in the ‘on’ year. Consequently, N fertilization can be accomplished in February–March and possibly after harvest (November–December) to be used at budburst in the successive season. A difference was found between leaf P concentrations in ‘on’ or ‘off’ years from flowering to fruit-set, with the lowest values in the ‘on’ year, in particular in June–July. A supply of P at autumn–winter and partially in spring–summer in particular in an ‘on’ year would be appropriate. K accumulated in leaves in ‘on’ year from spring to summer, thus a supply of K in January–February, before new vegetation, for trees either in ‘on’ or ‘off’ year can be necessary for supporting and implementing the root system activity and the successive shoot growth (‘off’ year) and fruit development (‘on’ year). These results should be useful to partially reduce, through an appropriate fertilization schedule, the alternate bearing in olive tree.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 2; 95-106
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expanding the possibilities of AIS data with heuristics
Autorzy:
Smestad, B.B.
Rødseth, Ø.J.
Asbjjørnslett, B.E.
Powiązania:
https://bibliotekanauki.pl/articles/116611.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
AIS Data
heuristics
commercial ship data registers
heuristic training
heuristic testing
satellite AIS Data
commercial vessel database
Opis:
Automatic Identification System (AIS) is primarily used as a tracking system for ships, but with the launch of satellites to collect these data, new and previously untested possibilities are emerging. This paper presents the development of heuristics for establishing the specific ship type using information retrieved from AIS data alone. These heuristics expand the possibilities of AIS data, as the specific ship type is vital for several transportation research cases, such as emission analyses of ship traffic and studies on slow steaming. The presented method for developing heuristics can be used for a wider range of vessels. These heuristics may form the basis of large-scale studies on ship traffic using AIS data when it is not feasible or desirable to use commercial ship data registers.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 279-286
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular identity and cytotoxicity of Lenzites quercina macrofungus extracts toward cancer cell lines
Autorzy:
Ogidi, O.C.
Oyetayo, V.O.
Akinyele, B.J.
Ogbole, O.O.
Adeniji, J.A.
Oluremi, B.B.
Powiązania:
https://bibliotekanauki.pl/articles/80043.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modern tillage and integrated nutrient management practices for improving soil fertility and productivity of groundnut (Arachis hypogaea L.) under rainfed farming system
Autorzy:
Patil, S.B.
B.C., Balakrishna Reddy
Chitgupekar, S.C.
Patil, B.B.
Powiązania:
https://bibliotekanauki.pl/articles/11868.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
The field experiment was conducted with four tillage and three nutrient management practices at Agronomy field unit, University of Agricultural Sciences, GKVK, Bangalore, Karnataka, India. The results of the study indicated that, higher groundnut pod yield (1307 and 1282 kg ha-1) and haulm yield (2733 and 2889 kg ha-1) was recorded with mechanical tillage + two intercultivations and integrated application of 50% organics and 50% inorganics, respectively as compared to rest of the treatments. Further, the same treatments noticed higher availability of N, P2O5 and K2O in soil after harvest of groundnut, but greater improvement in soil organic carbon content was observed with conventional tillage + one intercultivation (0.62%) as compared to rest of the tillage practices. The maximum net returns and benefit-cost ratio was recorded with mechanical tillage + two intercultivations (Rs. 11,287 ha-1 and 1.75, respectively) and integrated application of 50% organics + 50% inorganics (Rs. 10,462 ha-1 and 1.69, respectively). However, interaction effect of tillage and nutrient management practices were not influenced significantly on soil fertility and productivity of groundnut under rainfed farming system.
Źródło:
International Letters of Natural Sciences; 2015, 02
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A methodology for the assessment of historical structures based on finite element models
Metodologia oceny historycznych konstrukcji w oparciu o modelowanie metodą elementów skończonych
Autorzy:
Pardo, A.A.
Pellicer, B.B.
Montaner, E.I.
Villa, L.G.
Powiązania:
https://bibliotekanauki.pl/articles/218431.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Konserwatorów Zabytków
Tematy:
konstrukcja historyczna
kamień
kamieniarka
łuk
przypora
sklepienie
cegła
historical structure
finite element
masonry
stone
brick
arch
vault
flying buttress
Opis:
This work proposes a methodology to analyze masonry historical structures (stone or brick). They are mainly characterized by their self-weight which is the dominant action that acts on them, such us churches, cathedrals, etc. The proposed methodology is based on the analysis of finite element models that simulate the real structure behaviour. Therefore, much more information can be obtained about the structure safety than applying the usual methodology (the graphical statics considering the limit analysis). Using the proposed methodology, the structure response can be determined applying some loads on the model and considering some support conditions that simulate foundation settlements. The effect of structural reinforcement, wear of some blocks, non linear properties of the materials, etc. can be also considered. The safety level of the studied structure is evaluated with the obtained analytical results.
W niniejszej pracy zaproponowano wykorzystanie metody elementów skończonych do analizy historycznych konstrukcji murowanych (kamienia lub cegły). Zasadniczą cechą tych konstrukcji jest ich ciężar własny, który stanowi w ich przypadku podstawowe obciążenie np.: kościoły, katedry itp. Zaproponowana metodologia jest oparta na analizie metodą elementów skończonych modeli, które symulują zachowanie rzeczywistej konstrukcji. Pozwala to na uzyskanie większej ilości informacji dotyczących bezpieczeństwa konstrukcji, niż przy użyciu zwykłych metod (statyka wykreślna z uwzględnieniem analizy stanów granicznych). Przy wykorzystaniu proponowanej metody, reakcja konstrukcji może być określona poprzez zwiększenie obciążenia na modelu i przebadanie warunków podparcia, które symulują osiadanie fundamentów. Efekt wzmocnienia konstrukcji, zużycie materiałów, ich nieliniowe właściwości, itp. mogą również zostać uwzględnione. Poziom bezpieczeństwa badanej konstrukcji jest oceniany na podstawie uzyskanych wyników analiz.
Źródło:
Wiadomości Konserwatorskie; 2012, 32; 94-99
0860-2395
2544-8870
Pojawia się w:
Wiadomości Konserwatorskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protokoły mędrców Hollywodu : z wybitnej książki polski wydawca zrobił antysemicką karykaturę
Autorzy:
Oleszczyk, Michał.
Biskupski, Mieczysław B.B.
Michalkiewicz, Stanisław.
Powiązania:
Tygodnik Powszechny 2011, nr 36, s. 32-33
Data publikacji:
2011
Tematy:
Film amerykański
Opis:
Na marginesie pracy "Nieznana wojna Hollywood przeciwko Polsce 1939-1945" Mieczysława B.B. Biskupskiego.
Fot.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Budowa i właściwości tribologiczne warstw duplex typu CrC+(Ni-W), wytwarzanych w procesie chromowania próżniowego połączonym z obróbką galwaniczną
Structure and tribological properties of duplex layers of the CrC+(Ni-W) type, produced by means of the vacuum chromizing process together with galvanic treatment
Autorzy:
Kasprzycka, E.M.
Senatorski, J.K.
Bogdański, B.B.
Powiązania:
https://bibliotekanauki.pl/articles/190514.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
warstwy dyfuzyjne
właściwości tribologiczne
chromowanie dyfuzyjne
obróbka galwaniczna
diffusion layers
tribological properties
diffusion chromizing
galvanic treatment
Opis:
W pracy omówiono sposób wytwarzania warstw duplex typu CrC+(Ni-W) na powierzchni stali narzędziowej, stanowiący połączenie procesu chromowania próżniowego z obróbką galwaniczną. Wykonano pomiary grubości warstw, zbadano ich morfologię oraz wyznaczono rozkłady stężeń pierwiastków w strefie dyfuzyjnej tych warstw. Określono właściwości tribologiczne warstw. Stwierdzono, że odporność na zużycie przez tarcie warstw duplex typu CrC+(Ni-W) wytworzonych w procesie chromowania próżniowego na stali pokrytej powłoką elektrolityczną, jest porównywalna z odpornością warstw węglikowych typu CrC, wytwarzanych bez wstępnego osadzania powłoki elektrolitycznej.
In this paper, duplex layers of the CrC+(Ni-W) type produced on tool steel surface, in combined galvanic and vacuum chromizing processes, are investigated. Studies of layer thickness, their morphology, and concentration depth profiles of elements in diffusion zone of these layers have been carried out. Tribological properties of the layers have been determined. It has been proved, that the wear resistance by friction of duplex layers of the CrC+(Ni-W) type, produced by means vacuum chromizing of steel covered with electrolytic coating, is just as good as carbides layers of the CrC type, produced on the steel surface without electrolytic coatings.
Źródło:
Tribologia; 2009, 4; 69-77
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Crystal structure and spectroscopic properties of 4-acetaminopyridine and its protonated form
Autorzy:
Koleva, B.B.
Nikolova, R.
Tchapkanov, A.
Kolev, T.
Mayer-Figge, H.
Spiteller, M.
Sheldrick, W.S.
Powiązania:
https://bibliotekanauki.pl/articles/778733.pdf
Data publikacji:
2009
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
4-acetyloaminopirydyna
struktura kryształów
spektroskopia IR
spektroskopia UV
4-acetaminopyridine
protonated form
crystal structure
solid-state linear polarized IR spectroscopy
UV spectroscopy
quantum chemical calculations
1H and 13C NMR
ESI-MS
TGA and DSC
Opis:
4-Acetaminopyridine dihydrate and its protonated form, stabilized as the hydrochloride salt have been synthesized and spectroscopic elucidated in solution and in the solid-state by means of the inear-polarized solid state IR-spectroscopy (IR-LD), UV-spectroscopy, TGA, DSC, and the positive and negative ESI MS. Quantum chemical calculations were used to obtain the electronic structure, vibrational data and the electronic spectra. The spectroscopic and theoretical data are compared with the structure of the first compound obtained by single crystal X-ray diffraction. The effect of Npy protonation on the optical and magnetic properties of a 4-acetaminopyridine is discussed.
Źródło:
Polish Journal of Chemical Technology; 2009, 11, 3; 35-40
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 30

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