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Wyszukujesz frazę "Castro, A." wg kryterium: Autor

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    Wyświetlanie 1-20 z 20
    Tytuł:
    Image Retrieval Based on Text and Visual Content Using Neural Networks
    Autorzy:
    Castro, D. A.
    Seijas, L. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/108732.pdf
    Data publikacji:
    2010
    Wydawca:
    Społeczna Akademia Nauk w Łodzi
    Tematy:
    image retrieval
    Self-Organizing Maps (SOM)
    content-based image retrieval (CBIR)
    Text-Based Image Retrieval (TBIR)
    ParBSOM
    Scoring function
    Opis:
    In the last few years there has been a dramatic increase in the amount of visual data to be searched and retrieved. Typically, images are described by their textual content (TBIR) or by their visual features (CBIR). However, these approaches still present many problems. The hybrid approach was recently introduced, combining both characteristics to improve the benefits of using text and visual content separately. In this work we examine the use of the Self Organizing Maps for content-based image indexing and retrieval. We propose a scoring function which eliminates irrelevant images from the results and we also introduce a SOM variant (ParBSOM) that reduces training and retrieval times. The application of these techniques to the hybrid approach improved computational results.
    Źródło:
    Journal of Applied Computer Science Methods; 2010, 2 No. 1; 21-39
    1689-9636
    Pojawia się w:
    Journal of Applied Computer Science Methods
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transcriptome analysis of enzyme activities regulating ROS metabolism in olive (Olea europaea L.) reproductive tissues
    Autorzy:
    Zafra, A.
    Carmona, R.
    Jimenez-Quesada, M.
    Traverso, J.
    Castro, A.
    Rodriguez-Garcia, M.
    Bautista, R.
    Claros, M.
    Alche, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/80459.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    transcriptome
    enzyme activity
    reactive oxygen species
    metabolism
    olive
    Olea europaea
    reproductive tissue
    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:
    Enzyme activities regulating ROS metabolism in olive ( Olea europaea L.) seeds
    Autorzy:
    Zienkiewicz, A.
    Jimenez-Quesada, M.
    Traverso, J.
    Zafra, A.
    Lopez-Huertas, E.
    Zienkiewicz, K.
    Castro, A.
    Rodriguez-Garcia, M.
    Alche, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/79927.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    enzyme activity
    reactive oxygen species
    metabolism
    olive
    Olea europaea
    seed
    antioxidative enzyme
    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 Corrosion Enhancement due to Plasma Post-Oxidation Subsequent to Plasma Nitriding of a Steel AISI 4140
    Autorzy:
    Muñoz-Castro, A.
    de la Piedad-Beneitez, A.
    Valencia-Alvarado, R.
    López-Callejas, R.
    Mercado-Cabrera, A.
    Peña-Eguiluz, R.
    Rodriguez-Mendez, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402190.pdf
    Data publikacji:
    2015-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.77.-j
    52.40.Hf
    81.40.-z
    81.65.-b
    81.65.Mq
    Opis:
    The corrosion enhancement due to plasma post-oxidation subsequent to plasma nitriding of the samples of low alloy annealed steel AISI 4140 was evaluated. The plasma nitriding was carried out at ≈570°C for 1-3 h in an atmosphere of 75% H₂ and 25% N₂. After this process post-oxidation at ≈450°C in a gas mixture, air and dry air-like was conducted for an hour. The treated samples were characterized using the XRD, SEM, AFM, potentiodynamic polarization and Vickers microhardness tests. The outcome of combined processes showed the presence of ε and γ' nitrided phases in the inner compound layer and in the outer one mostly of magnetite phase and barely visible of hematite one without using H₂ in the post-oxidation process. Also in these processes, the corrosion potential proved to be lower in the treated specimens than the untreated ones, and the corrosion current decreased up to one order of magnitude when treated in environment air and air-like ambient.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 5; 824-827
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aluminium Morphological Modification by Nitrogen-Argon Mixture PIII
    Autorzy:
    Muñoz-Castro, A.
    López-Callejas, R.
    Valencia Alvarado, R.
    Peña-Eguiluz, R.
    Mercado-Cabrera, A.
    Barocio, S.
    Rodríguez-Méndez, B.
    de la Piedad-Beneitez, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1504099.pdf
    Data publikacji:
    2011-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.40.Hf
    52.77.Dq
    81.65.-b
    61.05.cp
    62.20.Qp
    68.37.Hk
    Opis:
    With incident fluences of ≈ $10^{12}$ atoms/$cm^2$ aluminium samples have been plasma immersion ion implanted with either pure nitrogen or argon/nitrogen mixtures at temperatures around 450°C. X-ray diffraction studies have validated the formation of the cubic phase of AlN, in samples treated with both the gas mixtures and pure nitrogen. Likewise, the presence of the hexagonal phase of AlN has been detected when either pure nitrogen or a 70%N/30%Ar mixture have been used. The signature peak of AlN has also been confirmed by the Raman spectroscopy. The maximal microhardness values were found in samples treated with the mixture. The maximal roughness was achieved with the equal part mixture in all cases, although increasing with the implantation pulse width up to a 300 nm peak at 150 μs. The latter critical value remains invariant under the pure nitrogen plasma treatment, provided that implantation periods in the order of 4.5 h are carried out.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 1; 167-170
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nitriding of 4140 Annealed Low Alloy Steel in RF Plasma
    Autorzy:
    de la Piedad-Beneitez, A.
    Muñoz-Castro, A.
    Valencia-Alvarado, R.
    López-Callejas, R.
    Mercado-Cabrera, A.
    Peña-Eguiluz, R.
    Rodriguez-Mendez, B.
    Barocio, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1400469.pdf
    Data publikacji:
    2013-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.77.Dq
    52.80.Pi
    62.20.Qp
    81.40.Pq
    81.70.Cv
    Opis:
    The annealed low alloy 4140 steel samples have been nitrided for different treatment periods (1-6 h) in an RF inductive plasma discharge with very low bias voltage ( ≈ 400 V). The resulting nitrided layer has been observed by means of an optical microscope whereas the nitride phases have been characterised by X-ray analysis. The corrosion response, assessed by the potentiodynamic tests in the 3.5% NaCl solution, presents both higher noble potential values and lower corrosion rates when compared with the untreated sample. The Vickers microhardness tests values show an appreciable increment compared to that of the untreated sample. The process is characterized by a high overall efficiency because similar average Vickers tests values were obtained, no matter for how long the treatment was extended. Likewise, the scanning electron micrographs confirmed no appreciable size evolution of the compound layer microstructure at different times of treatment.
    Źródło:
    Acta Physica Polonica A; 2013, 123, 5; 904-906
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fuzzy state feedback with double integrator and anti-windup for the Van de Vusse reaction
    Autorzy:
    Márquez-Vera, C. A.
    Màrquez-Vera, M. A.
    Yakoub, Z.
    Ma’arif, A.
    Castro-Montoya, A. J.
    Cázarez-Castro, N. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2134892.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fuzzy state feedback
    LMIs
    Van de Vusse reaction
    double integrator
    anti-windup
    Opis:
    Chemical processes use to be non-minimum phase systems. Thereby, they are a challenge for control applications. In this paper, fuzzy state feedback is applied in the Van de Vusse reaction that has an inverse response. The control design has an integrator to enhance the control performance by eliminating the steady-state error when a step reference is applied. An anti-windup action is used to reduce the undershoot in the system response. In practice, it is not possible to have always access to all the state variables. Thus, a fuzzy state observer is implemented via LMIs. Frequently, the papers that show similar applications present some comments about disturbance rejection. To eliminate the steady-state error when a ramp reference is used, in this work, a second integrator is aggregated. Now, the anti-windup also reduces the overshoot generated due to the usage of two integrators in the final application.
    Źródło:
    Archives of Control Sciences; 2022, 32, 2; 383--408
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New concrete additive by chemical recycling of PET
    Autorzy:
    Mendivil-Escalante, J M
    Almaral-Sánchez, J L
    Gómez-Soberón, J M
    Arredondo-Rea, S P
    Corral-Higuera, R
    Castro-Beltrán, A
    Cabrera-Covarrubias, F G
    Powiązania:
    https://bibliotekanauki.pl/articles/102237.pdf
    Data publikacji:
    2014
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    concrete admixture
    glycolysis
    polymeric resins
    polyethylene terephthalate
    Opis:
    Due to the problem that represents the accelerated production of waste from the consumption of polyethylene terephthalate (PET), it becomes necessary to look for alternative solutions; chemical recycling is a suitable method for conversion into a material with potential application in concrete additive, such as unsaturated polyester resins; with the above improvements and conservation of non-renewable raw materials can reduce the environmental impact. This investigation was focused on obtaining the synthesis of a polymeric resin by the method of glycolysis, and their characterization by Infrared Spectroscopy (FT-IR); the results show that the recycled materials (PET and its processing) are similar to reagents made from primary materials so that it is considered feasible to use in the intended application.
    Źródło:
    Advances in Science and Technology. Research Journal; 2014, 8, 23; 1-5
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sustainability in the logistics chain of the foreign trade at the example of argentina’s beef exports
    Zrównoważony rozwój w łańcuchu logistycznym handlu zagranicznego na przykładzie eksportu wołowiny w Argentynie
    Autorzy:
    Dichiara, R. O.
    Viceconte, M. A.
    Castro, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/319803.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    logistics chain
    sustainable meat exports
    Argentina
    łańcuch logistyczny
    zrównoważony eksport mięsa
    Argentyna
    Opis:
    It is estimated that damages in the quality of the meat because of the applications of the not sustainable behaviours like hit of the animals and the so-called “dark cut” or DFD (Dry proficient Dark) cause losses at least comparably with the nutrition of half a million people.
    Szacuje się, że ilością mięsa, którego jakość jest tracona poprzez niezrównoważone zachowania, można by nakarmić pół miliona ludzi. Sytuacje te wywoływane są biciem zwierząt czy wywoływaniem stresu podczas uboju. „Dark cut” określane jest również jako DFD (dry proficient dark).
    Źródło:
    Zeszyty Naukowe. Problemy Transportu i Logistyki / Uniwersytet Szczeciński; 2015, 29; 203-210
    1640-6818
    Pojawia się w:
    Zeszyty Naukowe. Problemy Transportu i Logistyki / Uniwersytet Szczeciński
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    4-amine-2-mercaptopyrimidine modified silica gel applied in Cd(II) and Pb(II) extraction from an aqueous medium
    Autorzy:
    Pereira, A.S.
    Ferreira, G.
    Caetano, L.
    Castro, R.S.D.
    dos Santos, A.
    Padilha, P.M.
    Castro, G.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/778413.pdf
    Data publikacji:
    2010
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    4-amino-2-merkaptopirymidyna
    krzemionka
    ekstrakcja metali
    środowisko wodne
    4-amine-2-mercaptopyrimidine
    silica
    metal extraction
    aqueous medium
    Opis:
    This paper discusses silica surface modification by a process involving a two-step reaction: anchoring of a silylating agent, followed by an attachment of a 4-amino-2-mercaptopyrimidine molecule. The modified material (Si-BP) was successfully characterized by the FTIR spectra, which revealed amine absorption bands, and through 13C and 29Si NMR spectra, which confirm the proposed structure of the modified silica (Si-BP). Si-BP was used to extract cadmium and lead from an aqueous medium at 298 K. The Si-BP kinetics towards metal ions was very fast, i.e., about 10 minutes, although extraction was significantly impaired at pH 3. The series of adsorption isotherms were adjusted to a modified Langmuir equation and the maximum extraction capacity was 0.193 and 0.387 mmol g-1 for Cd(II) and Pb(II), respectively. An analysis of the Ř values lead to the inference that the resulting metal ligand complex was type 1:1.
    Źródło:
    Polish Journal of Chemical Technology; 2010, 12, 1; 7-11
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A review on mineral waste for chemical-activated binders: mineralogical and chemical characteristics
    Autorzy:
    Sedira, N.
    Castro-Gomes, J.
    Kastiukas, G.
    Zhou, X.
    Vargas, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/89164.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
    Tematy:
    mineral waste
    mining waste
    alkali activated materials
    alkaline solutions
    chemical composition
    Opis:
    This review discusses the potential of alkali-activated materials obtained from mineral waste. A brief historical background on alkali-activated materials is presented. Recent advances in the development of binders obtained from mineral wastes and alkali-activated solutions are described. The scope of this state of the art review is to identify current knowledge in support that mineral waste can be used for the production of alkali-activated binders. In addition, this review identifies the chemical activators that can be effectively utilized for such purposes in the age when wastes are still viewed by industry as dis-posable. Some mineral wastes which are discussed can be viewed as a new resource for recycling and recovery which will offer important economic and social benefits.
    Źródło:
    Mining Science; 2017, 24; 29-58
    2300-9586
    2353-5423
    Pojawia się w:
    Mining Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    As sociedades em risco e os múltiplos fatores que fragilizam as relações sociais em tempos de pandemia
    Autorzy:
    Faria, Lina
    Castro Santos, Luiz A. de
    Chavez Alvarez, Rocio Elizabeth
    Powiązania:
    https://bibliotekanauki.pl/articles/2131629.pdf
    Data publikacji:
    2022-06-30
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    populations at risk
    social inequalities
    health inequities
    vulnerabilities
    violence
    pandemic
    Opis:
    O texto é uma reflexão sobre as noções de risco, vulnerabilidades, desigualdades, violências e seus impactos nas sociedades em tempos de pandemia. Abordar as interrelações entre esses conceitos e os fatores que fragilizam as relações sociais é uma problemática que ainda carece de discussão. O objetivo foi analisar algumas proposições conceituais e epistemológicas da teoria da sociedade global de risco de Ulrich Beck, da teoria dos sistemas e o conceito de risco de Niklas Luhmann e a produção de sentidos sobre riscos de Mary Jane Spink, em consonância com a relação paradoxal entre autonomia e vulnerabilidade no “pensar e agir” humano de Paul Ricoeur. Aborda também, o cenário de aprofundamento das desigualdades e das violências entre os grupos em situação de vulnerabilidade, em tempos de pandemia, mais evidente em função do crescimento das taxas de homicídios nos últimos três anos. Essas análises ajudam a entender as inseguranças com as quais a sociedade de risco diariamente se defronta, como uma pandemia, que podem fragilizar ainda mais as condições básicas de vida das populações em situação de vulnerabilidade e ampliar as desigualdades e violências.
    This text is a reflection on the perceptions of risk, social inequality, violence, and their impacts on societies in times of pandemic. Addressing the interrelationships between these concepts and the factors that weaken social relations is a problem that still lacks discussion. In discussing these concepts, the aim of the present text is to analyze, although briefly, some conceptual and epistemological proposals and implications of the thought of Ulrich Beck and Niklas Luhmann on reflexive modernization, global risk societies and social systems. In addition, the text examines the social psychologist Mary Jane Spink’s considerations on risk from the point of view of the production of meanings. The text also discusses the paradoxical relationship between autonomy and vulnerability in the human "thinking and acting" of the Paul Ricoeur. The scenario of deepening inequalities and violence among vulnerable groups in these times of pandemic, most evident due to the growth in homicide and unemployment rates, is also discussed in the last three years. These analyses help to understand the insecurity that the risk society faces on a daily basis, such as a pandemic, which can further weaken the basic living conditions of vulnerable populations while expanding inequalities and violence.
    Źródło:
    Revista del CESLA. International Latin American Studies Review; 2022, 29; 11-28
    1641-4713
    Pojawia się w:
    Revista del CESLA. International Latin American Studies Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stimulation of Pinus tropicalis M. seeds by magnetically treated water
    Autorzy:
    Morejon, L.P.
    Castro Palacio, J.C.
    Velazquez Abad, L.
    Govea, A.P.
    Powiązania:
    https://bibliotekanauki.pl/articles/26116.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    stimulation
    pine
    magnetic treatment
    Pinus tropicalis
    irrigation water
    germination
    seed
    Źródło:
    International Agrophysics; 2007, 21, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antifungal activity of Solanum extracts against phytopathogenic Curvularia lunata
    Autorzy:
    Hernandez-Rodriguez, Z.G.
    Riley-Saldana, C.A.
    Gonzalez-Esquinca, A.R.
    Castro-Moreno, M.
    de-la-Cruz-Chacon, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/66701.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    phytopathogenic fungi
    Curvularia lunata
    antifungal activity
    Solanum
    plant extract
    plant disease
    disease control
    leaf spot disease
    phytopathogen
    inhibition
    Opis:
    Several species of Solanum produce secondary metabolites with antimicrobial activity. In the present study, the inhibitory activity of Solanum chrysotrichum, S. erianthum, S. torvum and S. rostratum against phytopathogenic Curvularia lunata was determined. Methanol extracts from roots, stems, leaves and fruits were evaluated by the method of mycelial inhibition on agar and the minimum inhibitory concentration (MIC) was determined on a liquid medium. To increase the antimicrobial activity, the combined activity of the most active extracts for each phytopathogen was also determined (a combination of intra and interspecies extracts). The results showed that 12 of the 16 methanolic extracts of Solanum species had antifungal effects against C. lunata. The extracts of S. rostratum and S. erianthum developed the highest activity (~80% inhibition and 28.4 MIC μg . ml–1), even, equal to or greater than, the reference fungicide. The mixture of the active extracts of S. chrysotrichum and S. torvum increased their activity. Various extracts affected the macro and microscopic morphology and most of them reduced the number of conidia of the fungus. This resulted in the capacity to control the vegetative growth and reproduction of C. lunata, the causal fungus of corn leaf spot disease.
    Źródło:
    Journal of Plant Protection Research; 2018, 58, 3
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heavy moving average distances in sales forecasting
    Autorzy:
    Olazabal-Lugo, Maricruz
    Espinoza-Audelo, Luis F.
    León-Castro, Ernesto
    Perez-Arellano, Luis A.
    Blanco-Mesa, Fabio
    Powiązania:
    https://bibliotekanauki.pl/articles/27314242.pdf
    Data publikacji:
    2023
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    heavy moving average distance
    OWA operator
    distance measures
    sales forecasting
    Opis:
    This paper presents a new aggregation operator tech‐ nique that uses the ordered weighted average (OWA), heavy aggregation operators, Hamming distance, and moving averages. This approach is called heavy ordered weighted moving average distance (HOWMAD). The main advantage of this operator is that it can use the characteristics of the HOWMA operator to under‐ or over‐ estimate the results according to the expectations and the knowledge of the future scenarios, analyze the his‐ torical data of the moving average, and compare the different alternatives with the ideal results of the dis‐ tance measures. Some of the main families and specific cases using generalized and quasi‐arithmetic means are presented, such as the generalized heavy moving aver‐ age distance and a generalized HOWMAD. This study develops an application of this operator in forecasting the sales growth rate for a commercial company. We find that it is possible to determine whether the company’s objectives can be achieved or must be reevaluated in response to the actual situation and future expectations of the enterprise.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2023, 17, 2; 18--27
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Towards Transit-Oriented Development for Sustainable Urban Mobility: Insights from a Central European City
    Autorzy:
    Leśniewski, Maksymilian
    Świąder, Małgorzata
    Kaczmarek, Iwona
    Garcia Castro, David
    Kamińska, Joanna A.
    Pilawka, Tomasz
    Kazak, Jan K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1838026.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    sustainable transportation
    public transport
    urban rail
    geospatial network analysis
    transit-oriented development
    Opis:
    Sustainable Development Goals require holistic actions, including activity at the intersection of urban planning and environmental engineering. Turning our cities towards transit oriented development might help in reducing pollutant emissions caused by individual transportation modes that rely on crude oil. This research presents how the use of geospatial network analysis can support local decision makers in the evaluation of potential public transport accessibility by citizens in the case of a Central European city – Wrocław (Poland). The obtained results indicate differentiation in access to railway stations and stops, which results from pedestrian path networks and the number of entrances to railway stations. The visualization of serve area shows which parts of the city are excluded from comfortable access to public transport and in that way high light where future actions should be taken.
    Źródło:
    Geomatics and Environmental Engineering; 2021, 15, 3; 39-53
    1898-1135
    Pojawia się w:
    Geomatics and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anthropometric indicators of obesity in policemen: A systematic review of observational studies
    Autorzy:
    Da Silva, Franciele C.
    Hernandez, Salma S.
    Gonçalves, Elizandra
    Arancibia, Beatriz A.
    Da Silva Castro, Thiago L.
    Da Silva, Rudney
    Powiązania:
    https://bibliotekanauki.pl/articles/2178909.pdf
    Data publikacji:
    2014-12-01
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    obesity
    police
    systematic review
    observational study
    Opis:
    The aim of this paper was to summarize scientific literature on obesity in policemen through a systematic review of observational studies. For this purpose the following electronic databases were selected: Medline by Pubmed, CINAHL, and Scopus; and a manual search of the referenced studies concerning this topic was performed. There were no restrictions with respect to the year or language of the publication. Twenty-three studies were identified and 9 articles, considered as potentially relevant, were included. The labor time, shift and career progression promoted changes in body composition. Most of the policemen taking part in the studies included in this paper were overweight (BMI: 25.2–29.3), obese (body fat ≥ 25%), had increased waist (90.4–102 cm) and abdominal perimeters (18.9–90.5 cm), and had a higher risk of chronic disease, which is associated with depression and stress development. Interventional studies are needed for the purpose of proposing preventive and rehabilitation programs, which would result in providing physical and mental well-being, improvement of life quality and, especially, prevention of obesity related to police work.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2014, 27, 6; 891-901
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Attachment of 2,2-bipyridine onto a silica gel for application as a sequestering agent for copper, cadmium and lead ions from an aqueous medium
    Autorzy:
    Souza, E. J.
    Cristante, V. M.
    Padilha, P. M.
    Jorge, S. M. A.
    Martines, M. A. U.
    Silva, R. I. V.
    Carmo, D. R.
    Castro, G. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/779827.pdf
    Data publikacji:
    2011
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    2,2-bipirydyna
    żel krzemionkowy
    adsorpcja
    jony metali
    2,2'-bipyridine
    silica gel
    adsorption
    metal ions
    Opis:
    A method was developed to attach 2,2-bipyridine (BP) onto a silica gel surface by a two-step reaction. The fi rst step consisted of a reaction between the matrix and a silylating agent, 3-chloropropyltrimethoxysilane. In the second step of the reaction, a ligand molecule was attached onto Si-CPTS, yielding the product Si-BP. The modified material contained 0.431±0.01 mmol of 2,2-bipyridine per gram of modified silica, as confirmed by FT-IR spectra of the proposed structure. The surface modification was characterized by the BET technique, which revealed a decrease in the surface area from 614 to 450 m2 g-1. The series of adsorption isotherms for the metal ions were adjusted to fit a modified Langmuir equation. The maximum number of moles of copper, cadmium and lead ions adsorbed was 0.64, 0.53, and 0.54 mmol g-1, respectively. The surface saturation was calculated as ¢ fraction and the values obtained, Cu(II) =1.160, Cd(II) = 1.044 and Pb(II) = 0.997, suggest a type 1:1 metal-ligand complex.
    Źródło:
    Polish Journal of Chemical Technology; 2011, 13, 4; 28-33
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Naphthalic anhydride increases tolerance of common bean to herbicides
    Autorzy:
    Krenchinski, F.H.
    Batista de Castro, E.
    Cesto, V.J.S.
    Belapart, D.
    Rodrigues, D.M.
    Carbonari, C.A.
    Velini, E.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084688.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    electron transport
    Phaseolus vulgaris
    protection
    safeners
    Opis:
    The aim of this work was to evaluate the use of the naphthalic anhydride safener on the protection of common bean cultivars BRS-Estilo (carioca) and BRS-Esplendor (black) from negative effects of herbicides. Two experiments were conducted, one for each cultivar in a complete randomized design with five replications, in a 6 × 3 factorial scheme, with six herbicide treatments: bentazon, fluazifop-P + fomesafen, bentazon + imazamox, fomesafen, cloransulam, and control without application, and three naphthalic anhydride treatments: without application, foliar application, and application via seed treatment. Visible injuries at 7, 14 and 21 days after application, photosystem II electron transport rate, and plant dry weight were evaluated. The naphthalic anhydride applied via foliar, and seed treatment reduced significantly the visible injuries in relation to the control when using the herbicides bentazon, fluazifop-P + fomesafen, bentazon + imazamox, and cloransulam. The photosystem II electron transport rate was protected by anhydride applied via foliar and seed treatment when using the herbicides bentazon, fluazifop-P + fomesafen and bentazon + + imazamox. The application of naphthalic anhydride via seed treatment protected the BRS-Estilo and BRS-Esplendor common bean cultivars, with no reductions in the plant dry weight when using the herbicides fluazifop-P + fomesafen, and fomesafen. The use of naphthalic anhydride via seed treatment and foliar application protected BRS-Estilo and BRSEsplendor common bean cultivars, from the negative effects of fluazifop-P + fomesafen and fomesafen herbicides. Thus, this practice has potential to be used in common beans.
    Źródło:
    Journal of Plant Protection Research; 2019, 59, 3; 383-391
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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