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    Wyświetlanie 1-9 z 9
    Tytuł:
    In silico prediction and characterization of three-dimensional structure of actin-1 of Arabidopsis thaliana
    Autorzy:
    Sahu, M.
    Dehury, B.
    Sarmah, R.
    Sahoo, S.
    Sahu, J.
    Sarma, K.
    Sen, P.
    Modi, M.K.
    Barooah, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/80321.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    actin-1
    protein sequence
    Arabidopsis thaliana
    comparative modelling
    three-dimensional structure
    molecular dynamics simulation
    Opis:
    Actin-1 is a ubiquitous protein belonging to the reproductive class of Actin family in Arabidopsis thaliana . This protein is involved in the formation of filaments that are major components of the cytoskeleton. Despite the importance of this protein, very little information is available regarding its structure and function in plants. In this study, analysis of the protein sequence was done and comparative model of Actin-1 was constructed (UNIPROT ID: P0CJ46) from Arabidopsis thaliana using the crystal structure of Dictyostelium discoideum actin (PDB ID: 1NLV-A) as template employing Modeller version 9.9. The stable structure was generated by 5 nanosecond molecular dynamics simulation steps using GROMOS43A1 96 force field that characterized its structural and dynamic feature. The biochemical function of the final simulated structure was also investigated using PROFUNC. The molecular simulation study suggested that the modeled Actin-1 protein retain its stable conformation in aqueous solution. The predicted binding sites in the modeled Actin-1 protein are very informative for further protein-ligand interaction study.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 4
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of water regimes on sorptivity and organic matter humic components of soil
    Autorzy:
    Raut, S.
    Sahoo, N.
    Chakraborty, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/26353.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    water regime
    sorptivity
    organic matter
    humic acid
    soil
    fulvic acid
    infiltration
    soil property
    physicochemical property
    Opis:
    The aim of the study was to find the effect of water regimes on soil sorptivity and humic components of organic matter. Physicochemical parameters were also determined. Steady state cumulative infiltration was the highest (60-100 mm) in non-irrigated upland soil and the lowest (8-10 mm) in waterlogged soil. The highest sorptivity of 4.0-4.5mmmin-1/2 was found in nonirrigated upland soil and the lowest in seasonally waterlogged soil (1.0-1.5 mm min-1/2). Organic carbon content of all soils was low (<1%), EC values were also low (< 4 dS m-1). Saturated moisture was high in waterlogged soil. The non-irrigated upland soils had a higher fraction of fulvic acid (0.15-0.2%), due to which they were more capable of infiltration, whereas waterlogged soils had a greater fraction of insoluble humic acid (0.29-0.35%) and exhibited less cumulative infiltration. Sorptivity decreased as the clay content, pH, EC, porosity and humic acid content of the soil increased.
    Źródło:
    International Agrophysics; 2012, 26, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Germination and short-term storage of Hippophae rhamnoides L. seeds and its ex-situ reintroduction potential assessment under North East Indian conditions
    Autorzy:
    Das Bhowmik, S.S.
    Stobdan, T.
    Sahoo, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/41097.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Opis:
    Germination efficiency of freshly harvested Hippophae rhamnoides seeds collected from cold desert of Ladakh outside its native place under in vivo glass house condition recorded a highest of 73% germination in soilrite at 22±2°C and 60–70% RH within three weeks at Guwahati, North East India. Germination of seeds was significantly enhancedto a maximum of 90% under in vitro condition in 1/4th Murashige & Skoog (MS) medium supplementedwith 3% sucrose and2% activatedcharcoal within two weeks. Glass house acclimatized healthy seedlings after been introduced to natural climatic conditions of Shillong and Guwahati of North East India showed inadequate survivability. Unlike storage at room temperature which is detrimental for seed viability, low temperature storage under refrigeration and natural climatic condition of Ladakh retains viability for prolonged period.
    Źródło:
    Dendrobiology; 2013, 70
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary study on the impact of methanolic extract of Elephantopus scaber Linn. on hair growth promoting effect in rats
    Wstępne badanie wpływu wyciągu metanolowego z Elephantopus scaber Linn. na proces wspomagania wzrostu owłosienia u szczurów
    Autorzy:
    Sahoo, H.B.
    Sagar, R.
    Bhattamisra, S.K.
    Bhaiji, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/72781.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    methanolic extract
    Elephantopus scaber
    hair growth
    promoting effect
    rat
    hair loss
    baldness zob.alopecia
    alopecia
    Opis:
    Methanolic extract of Elephantopus scaber leaves was investigated for its role in hair growth in experimental rats. The 2% and 5% solution of prepared formulation using methanolic extract was studied for hair growth on wistar rats for 30 days. Minoxidil (2% solution) was taken as a reference standard. The prepared hair oil formulation of methanolic extract significantly (p<0.01) potentiated the hair growth initiation and completion time with dosedependent improvement in skin biopsy, hair length and hair weight. In vitro hair follicles development study showed the significant (p<0.05) improvement in the initiation of new hair follicles. Above mentioned results indicated that the methanolic extract of E. scaber rendered significant hair growth promotive effect.
    Badano wpływ wyciągu metanolowego z liści Elephantopus scaber na wzrost włosów u szczurów laboratoryjnych. Przez 30 dni badano wzrost włosów u szczurów Wistar po podaniu 2% i 5% preparatu sporządzonego z użyciem ekstraktu metanolowego. Substancją kontrolną był minoksidil (roztwór 2 %). Preparat z ekstraktu metanolowego przygotowany na bazie oleju istotnie (p<0,01) zwiększał inicjację wzrostu włosów i przyspieszał jego zakończenie. Podczas biopsji odnotowano też zależną od dawki poprawę stanu skóry, długości włosów i zwiększenie masy włosów. Podczas badaniu in vitro wykazano istotną (p<0,05) poprawę tworzenia się nowych mieszków włosowych. Powyższe wyniki wskazują, że wyciąg metanolowy z E. scaber może istotnie zwiększać porost włosów.
    Źródło:
    Herba Polonica; 2013, 59, 2
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of total phenolics and flavonoidal contents as well as in vitro antioxidant potential of Apium leptophyllum Pers.
    Określenie całkowitej zawartości fenoli i flawonoidów oraz potencjału antyoksydacyjnego Apium leptophyllum Pers.
    Autorzy:
    Sahoo, H.B.
    Bhattamisra, S.K.
    Biswas, U.K.
    Sagar, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/71582.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    estimation
    total phenolics content
    flavonoids content
    in vitro
    antioxidant potential
    Apium leptophyllum
    fruit
    antioxidant value
    Opis:
    At present, major causes of diseases is oxidative stress affecting both metabolic and physiological functions of the body. That is why there is a great need for investigation of nutritious food supplements for counteracting these oxidative stresses. Therefore, the aim of study was to evaluate the therapeutic potential of Apium leptophyllum Pers. fruits by estimating total phenolic as well as flavonoidal contents and antioxidant values. The collected fruits were extracted separately using different solvents like methanol, ethanol and water. Total phenolic and flavonoid contents were measured from the respective extracts and correlated with their antioxidant values. The antioxidant properties of various fruit extracts (12.5, 25, 50, 100 and 150 μg/ml) were evaluated by DPPH, hydroxyl, nitric oxide and superoxide scavenging assay and compared with ascorbic acid as a standard. All the extracts of A. leptophyllum were found to be dose dependent inhibition against these free radicals. Among all these extracts, the methanolic one was found better in the scavenging activity and followed dose-dependent manner against DPPH, hydroxyl radical, nitric oxide, superoxide anions with minimum IC50 values of 97.9, 89.02, 135.37, 127.73 μg/ml, respectively, and also observed more significant (p<0.01) as compared with standard. Furthermore, total phenolic and flavonoidal contents were found highest in methanolic extract. The results obtained in this study clearly indicate that the methanolic extract of A. leptophyllum may be used as a new potential source of natural nutritional supplement in food or pharmaceutical industries due to rich source of phenolic, flavonoidal contents as well as antioxidant property.
    Obecnie główną przyczyną chorób jest stres oksydacyjny wpływający zarówno na metabolizm, jak i funkcje fizjologiczne organizmu. Dlatego istnieje duża potrzeba poszukiwania produktów uzupełniających dietę, które przeciwdziałają stresowi oksydacyjnemu. Celem niniejszej pracy było określenie potencjału terapeutycznego owoców Apium leptophyllum Pers. poprzez określenie całkowitej zawartości fenoli i flawonoidów oraz ich aktywności antyoksydacyjnej. Nasiona ekstrahowano oddzielnie, używając różnych rozpuszczalników, takich jak metanol, etanol i woda. Zmierzono całkowitą zawartość fenoli i flawonoidów w poszczególnych wyciągach i skorelowano ją z ich aktywnością antyoksydacyjną. Właściwości antyoksydacyjne różnych wyciągów z owoców (w stężeniach 12,5, 25, 50, 100 i 150 μg/ml) zmierzono za pomocą metod przy użyciu DPPH, rodników hydroksylowych, tlenku azotu, nadtlenku i porównano z właściwościami kwasu askorbowego. Stwierdzono, że działanie inhibicyjne wszystkich wyciągów z A. leptophyllum przeciwko wolnym rodnikom zależało od zastosowanej dawki. Ponadto całkowita zawartość związków fenolowych i flawonoidów była najwyższa w wyciągu metanolowym. Wyniki tych badań wyraźnie wskazują, że wyciąg metanolowy z A. leptophyllum może być używany jako potencjalne nowe źródło naturalnych suplementów diety dla przemysłu spożywczego lub farmaceutycznego dzięki wysokiej zawartości fenoli, flawonoidów i właściwościom antyoksydacyjnym.
    Źródło:
    Herba Polonica; 2013, 59, 3
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and analysis of a novel concept-based unmanned aerial vehicle with ground traversing capability
    Autorzy:
    Kumar, Ramanuj
    Gour, Surjeet S.
    Pandey, Anish
    Kumar, Shrestha
    Mohan, Abhijeet
    Shashwat, Pratik
    Sahoo, Ashok K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2105984.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    unmanned aerial vehicle
    unmanned ground vehicle
    rough terrain
    quadcopter
    caterpillar wheel
    kinematic analysis
    Opis:
    Unmanned aerial vehicle (UAV) is a typical aircraft that is operated remotely by a human operator or autonomously by an on-board microcontroller. The UAV typically carries offensive ordnance, target designators, sensors or electronic transmitters designed for one or more applications. Such application can be in the field of defence surveillance, border patrol, search, bomb disposals, logistics and so forth. These UAVs are also being used in some other areas, such as medical purposes including for medicine delivery, rescue operations, agricultural applications and so on. However, these UAVs can only fly in the sky, and they cannot travel on the ground for other applications. Therefore, in this paper, we design and present the novel concept-based UAV, which can also travel on the ground and rough terrain as an unmanned ground vehicle (UGV). This means that according to our requirement, we can use this as a quadcopter and caterpillar wheel–based UGV using a single remote control unit. Further, the current study also briefly discusses the two-dimensional (2D) and three-dimensional (3D) SolidWorks models of the novel concept-based combined vehicle (UAV + UGV), together with a physical model of a combined vehicle (UAV + UGV) and its various components. Moreover, the kinematic analysis of a combined vehicle (UAV + UGV) has been studied, and the motion controlling kinematic equations have been derived. Then, the real-time aerial and ground motions and orientations and control-based experimental results of a combined vehicle (UAV + UGV) are presented to demonstrate the robustness and effectiveness of the proposed vehicle.
    Źródło:
    Acta Mechanica et Automatica; 2022, 16, 3; 169--179
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative evaluation of inversion approaches of the radiative transfer model for estimation of crop biophysical parameters
    Autorzy:
    Mridha, N.
    Sahoo, R.N.
    Sehgal, V.K.
    Krishna, G.
    Pargal, S.
    Pradhan, S.
    Gupta, V.K.
    Nagesh Kumar, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/25984.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    The inversion of canopy reflectance models is widely used for the retrieval of vegetation properties from remote sensing. This study evaluates the retrieval of soybean biophysical variables of leaf area index, leaf chlorophyll content, canopy chlorophyll content, and equivalent leaf water thickness from proximal reflectance data integrated broad bands corresponding to moderate resolution imaging spectroradiometer, thematic mapper, and linear imaging self scanning sensors through inversion of the canopy radiative transfer model, PROSAIL. Three different inversion approaches namely the look-up table, genetic algorithm, and artificial neural network were used and performances were evaluated. Application of the genetic algorithm for crop parameter retrieval is a new attempt among the variety of optimization problems in remote sensing which have been successfully demonstrated in the present study. Its performance was as good as that of the look-up table approach and the artificial neural network was a poor performer. The general order of estimation accuracy for para-meters irrespective of inversion approaches was leaf area index > canopy chlorophyll content > leaf chlorophyll content > equivalentleaf water thickness. Performance of inversion was comparable for broadband reflectances of all three sensors in the optical region with insignificant differences in estimation accuracy among them.
    Źródło:
    International Agrophysics; 2015, 29, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
      Wyświetlanie 1-9 z 9

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