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    Wyświetlanie 1-19 z 19
    Tytuł:
    Injectivity in model theory
    Autorzy:
    Bacsich, Paul D.
    Powiązania:
    https://bibliotekanauki.pl/articles/725624.pdf
    Data publikacji:
    1972
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Źródło:
    Colloquium Mathematicum; 1972, 25, 2; 165-176
    0010-1354
    Pojawia się w:
    Colloquium Mathematicum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exploring the potential of fungal-bacterial consortium for low-cost biodegradation and detoxification of textile effluent
    Autorzy:
    Lade, H.
    Kadam, A.
    Paul, D.
    Govindwar, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/204834.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fungal-bacterial consortium
    wheat bran
    textile effluent
    decolorization
    biodegradation
    detoxification
    Opis:
    In the present study, the enrichment and isolation of textile effluent decolorizing bacteria were carried out in wheat bran (WB) medium. The isolated bacterium Providencia rettgeri strain HSL1 was then tested for decolorization of textile effluent in consortium with a dyestuff degrading fungus Aspergillus ochraceus NCIM 1146. Decolorization study suggests that A. ochraceus NCIM 1146 and P. rettgeri strain HSL1 alone re moves only 6 and 32% of textile effluent American Dye Manufacturing Institute respectively in 30 h at 30 ±0.2°C of microaerophilic incubation, while the fungal-bacterial consortium does 92% ADMI removal within the same time period. The fungal-bacterial consortium exhibited enhanced decolorization rate due to the induction in activities of catalytic enzymes laccase (196%), lignin peroxidase (77%), azoreductase (80%) and NADH-DCIP reductase (84%). The HPLC analysis confirmed the biodegradation of textile effluent into various metabolites. Detoxification studies of textile effluent before and after treatment with fungal-bacterial consortium revealed reduced toxicity of degradation metabolites. The efficient degradation and detoxification by fungal-bacterial consortium pre-grown in agricultural based medium thus suggest a promising approach in designing low-cost treatment technologies for textile effluent.
    Źródło:
    Archives of Environmental Protection; 2016, 42, 4; 12-21
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Toxic alveolitis after inhalation of a water repellent
    Autorzy:
    Epping, Guido
    Van Baarlen, Joop
    Van Der Valk, Paul D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2185379.pdf
    Data publikacji:
    2011-12-01
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    water repellent
    toxic alveolitis
    acute interstitial pneumonitis
    broncho-alveolar lavage
    Oil-Red-O-stain
    Opis:
    Inhalation of fluorocarbon polymers can cause pulmonary toxicity. Although multiple cases of lung injury have been reported, cellular characterization of the associated alveolitis occurring acutely after inhalation is limited. We report the case of a previously healthy woman who presented at our Emergency Department with an acute pneumonitis following inhalation of a fluorocarbon polymer-based rain-proofing spray. Bronchoalveolar lavage (BAL) performed shortly after the presentation showed an elevated total cell count, with a high proportion of neutrophils (58%) and eosinophils (9%). In addition, a lipid stain (Oil-Red-O-stain) showed a high level of lipid laden macrophages, a marker that could reflect a direct toxic effect of the spray on alveolar cells. The patient made a full recovery after four days of in-hospital observation with supportive care.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2011, 24, 4; 409-413
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Serum fluoride levels in ambulance staff after commencement of methoxyflurane administration compared to meta-analysis results for the general public
    Autorzy:
    Allison, Serah J.
    Docherty, Paul D.
    Pons, Dirk
    Chase, James G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2093863.pdf
    Data publikacji:
    2021-12-13
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    meta-analysis
    prospective studies
    fluorides
    ambulances
    fluoride poisoning
    methoxyflurane
    Opis:
    ObjectivesAmbulance officers administering methoxyflurane as an inhalational analgesic may be exposed to trace vapor. Fluoride is a methoxyflurane metabolite, and has been associated with acute renal failure in anesthesia patients and skeletal fluorosis with chronic elevated serum levels from other sources. However, there has been no direct measurement of serum fluoride in occupationally exposed ambulance officers. Thus, this study directly measures serum fluoride over a prolonged period in order to determine renal toxic and skeletal fluorosis risk to ambulance officers who are administering methoxyflurane.Material and MethodsSerum inorganic fluoride concentrations were measured in a prospective observational study of 12 emergency medical technicians (EMTs). The study took 7 serum fluoride measurements over 24 months. A meta-analysis of healthy adult serum fluoride ranges was also conducted.ResultsThe typical healthy adult serum fluoride range was determined to be 0.21–2.11 μmol/l (p < 0.001). The EMTs’ baseline median (IQR) serum fluoride concentrations were 0.4 μmol/l (0.2; 1.0) with maximum 1.6 μmol/l. The EMTs’ overall median serum fluoride was 0.4 μmol/l (0.2; 1.3) with maximum 4.0 μmol/l, usually within healthy reference ranges. All results were ≤10% of the suggested single-dose renal toxic threshold. One result was above a threshold for skeletal fluorosis. The highest measured serum fluoride was 24% of the lowest level associated with radiologic evidence of fluorosis. There was no evidence overall of increasing serum fluoride levels.ConclusionsThere was no evidence that EMTs’ exposure to methoxyflurane resulted in sustained increased serum fluoride. These results imply EMTs’ occupational safety from acute renal toxicity when activated carbon filtration is used on patient exhalation. However, 1 serum fluoride result above a skeletal fluorosis threshold suggests that the risk of mild skeletal fluorosis cannot be excluded.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2021, 34, 6; 767-777
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dosimetry of 131 I for Occupational Radiation Workers by Whole Body Counting System
    Autorzy:
    Rahman, M. S.
    Haydar, M. A.
    Patwary, M. K. A.
    Shome, S. M.
    Paul, S.
    Paul, D.
    Meaze, A. K. M. M. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/411910.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Internal Dosimetry
    Whole Body Counter
    IMBA
    131I
    Opis:
    Internal radiation dosimetry of occupational radiation workers due to inhalation of 131 I during maintenance at iodine 131 I hot cell of Radioisotope Production Division (RIPD) of Bangladesh Atomic Energy Commission have been performed with Whole Body Counter (WBC) containing two large size NaI detector. The contaminated radioactivity of the radiation workers by 131 I was immediately conducted using a WBC (CANBERRA, FASTSCAN model 2250) and counting was repeated again a few days later. The performance of whole body counter was checked by CANBERRA transfer phantom (model 2257) with a mixed source (20 ml vial). The intake was calculated by Apex-Invivo counting software and then corresponding dose in thyroid were estimated by using Integrated Modules for Bioassay Analysis (IMBA) Professional Plus code modules. The body activity due to intake of 131 I and the total effective and equivalent dose in thyroid were also estimated and discussed.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 20, 1; 21-27
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigating the effectiveness of the flipped classroom in an introductory programming course
    Autorzy:
    Souza, Manoj Joseph D
    Rodrigues, Paul
    Powiązania:
    https://bibliotekanauki.pl/articles/2012135.pdf
    Data publikacji:
    2015-06-30
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    flipped classroom
    programming self-efficacy
    academic performance
    introductory programming
    Opis:
    A flipped classroom is a teaching-learning environment in which students self-learn content by watching video lectures outside of the classroom and engage in learner-centered activities in the classroom with the guidance of an instructor. Earlier research into programming education has shown that students in the traditional classroom find introductory programming courses hard. This experimental study compared the effectiveness of a flipped classroom (experimental group, N=48) with a traditional classroom (control group, N=52) in two areas: 1. programming self-efficacy; and 2. academic performance. The results show that the students in the flipped classroom increased programming self-efficacy and achieved higher grades.
    Źródło:
    The New Educational Review; 2015, 40; 129-139
    1732-6729
    Pojawia się w:
    The New Educational Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aspergillus niger, a dominant phylloplane coloniser, influences the activity of defense enzymes in Solanum lycopersicum
    Autorzy:
    Goswami, S.
    Paul, P.K.
    Sharma, P.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084798.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Aspergillus niger
    phylloplane
    peroxidase
    phenylalanine ammonia lyase
    polyphenol oxidase
    Solanum lycopersicum
    tyrosine ammonia lyase
    Opis:
    Phylloplane microbes have been studied as strategic tools in management against plant pathogens. Non-pathogenic bacteria and fungi have been applied as crop protectants against various plant diseases. The present study aimed at evaluating the potentiality of Aspergillus niger spores in altering the activity of four key enzymes related to defense in tomato. The experiment was designed such that two groups of 50 tomato plants were considered: group 1 – sprayed with autoclaved distilled water (control) and group 2 – sprayed with A. niger spores. Spraying was carried out under aseptic conditions. The experimental parameters included analysis of the activity of peroxidase (POX), polyphenol oxidase (PPO), phenylalanine ammonia lyase (PAL) and tyrosine ammonia lyase (TAL) as well as expression of POX and PPO isoforms. The results demonstrated an inductive effect of A. niger on the activity of POX, PPO, PAL and TAL. Enhanced expression of POX and PPO isoforms was also observed. The results indicated that A. niger can be considered probiotic for the management of tomato against its phytopathogens.
    Źródło:
    Journal of Plant Protection Research; 2019, 59, 4; 512-518
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unconditional federal transfers and state government spending: The flypaper effect in Nigeria and South Africa
    Autorzy:
    Isik, Abdurrahman
    Golit, Peter D.
    Terhemba Iorember, Paul
    Powiązania:
    https://bibliotekanauki.pl/articles/23942799.pdf
    Data publikacji:
    2023-11-10
    Wydawca:
    Fundacja Naukowa Instytut Współczesnych Finansów
    Tematy:
    unconditional federal transfers
    flypaper effect
    state spending
    two-step system
    generalized method of moments
    Nigeria
    South Africa
    Opis:
    The flypaper effect is undoubtedly among the most interesting concepts in subnational government spending behavior. This study is the first attempt to provide empirical evidence on the existence of the flypaper effect in the two largest economies in Sub-Saharan Africa: Nigeria and South Africa. Using the two-step system generalized method of moment’s estimator, our results show that the flypaper effect exists for both state and provincial governments in Nigeria and South Africa. Provincial governments in South Africa are found to be more responsive to positive changes in unconditional federal transfers than state governments in Nigeria. We therefore recommend sensitization on the receipt and disbursement of unconditional federal transfers. This will help reduce the illusion or information asymmetry about the use of unconditional federal transfers.
    Źródło:
    Modern Finance; 2023, 1, 1; 99-115
    2956-7742
    Pojawia się w:
    Modern Finance
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Status of multi-wafer production MBE capabilities for extended SWIR III-V epi materials for IR detection
    Autorzy:
    Fraser, Everett D.
    Shao, Jiayi
    Frensley, Paul W.
    Barnes, Beau D.
    Clark, Kevin P.
    Kao, Yung-Chung
    Pinsukanjana, Paul R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2204203.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    extended shortwave
    GaSb
    InP
    detector
    pn-CBIRD
    Opis:
    The authors report two approaches, the first based on growth of lattice matched InGaAs/GaAsSb superlattice on InP substrate with tunable bandgap in the 2 to 3 μm range. The second approach is based on bulk random alloy InGaAsSb, which is tunable from 1.7 μm to 4.5 μm and lattice matched to the GaSb lattice constant. In each case, detector structures were fabricated and characterised. The authors have assessed the performance of these materials relative to commercially available extended short wave infrared devices through comparison to IGA-Rule 17 dark current performance level. A complementary barrier structure used in the InGaAsSb design showed improved quantum efficiency. The materials compare favourably to commercial technology and present additional options to address the challenging extended short wave infrared spectral band.
    Źródło:
    Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144571
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Split Euler Tours In 4-Regular Planar Graphs
    Autorzy:
    Couch, PJ
    Daniel, B.D.
    Guidry, R.
    Paul Wright, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/31341188.pdf
    Data publikacji:
    2016-02-01
    Wydawca:
    Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
    Tematy:
    4-regular
    3-connected
    planar
    split Euler tour
    NP-complete
    Opis:
    The construction of a homing tour is known to be NP-complete. On the other hand, the Euler formula puts su cient restrictions on plane graphs that one should be able to assert the existence of such tours in some cases; in particular we focus on split Euler tours (SETs) in 3-connected, 4-regular, planar graphs (tfps). An Euler tour S in a graph G is a SET if there is a vertex v (called a half vertex of S) such that the longest portion of the tour between successive visits to v is exactly half the number of edges of G. Among other results, we establish that every tfp G having a SET S in which every vertex of G is a half vertex of S can be transformed to another tfp G′ having a SET S′ in which every vertex of G′ is a half vertex of S′ and G′ has at most one point having a face configuration of a particular class. The various results rely heavily on the structure of such graphs as determined by the Euler formula and on the construction of tfps from the octahedron. We also construct a 2-connected 4-regular planar graph that does not have a SET.
    Źródło:
    Discussiones Mathematicae Graph Theory; 2016, 36, 1; 23-30
    2083-5892
    Pojawia się w:
    Discussiones Mathematicae Graph Theory
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design of Low–power 4-bit Flash ADC Using Multiplexer Based Encoder in 90nm CMOS Process
    Autorzy:
    Shylu Sam, D. S.
    Sam Paul, P.
    Jeba Jingle, Diana
    Mano Paul, P.
    Samuel, Judith
    Reshma, J.
    Sudeepa, P. Sarah
    Evangeline, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2124770.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    flash ADC
    low power
    dynamic comparator
    encoder
    Opis:
    This work describes a 4-bit Flash ADC with low power consumption. The performance metrics of a Flash ADC depend on the kind of comparator and encoder used. Hence openloop comparator and mux-based encoder are used to obtain improved performance. Simulation results show that the simulated design consumes 0.265mW of power in 90nm CMOS technology using cadence-virtuoso software. The circuit operates with an operating frequency of 100MHz and a supply voltage of 1V.
    Źródło:
    International Journal of Electronics and Telecommunications; 2022, 68, 3; 565--570
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental investigation on elevated water tanks with base isolation – response spectrum approach
    Autorzy:
    Vimal, Paul P. A.
    Regin, Joseph D. J.
    Jinu, Gowthami T. R.
    Chettiar, Chembakaraman G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839602.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    response spectrum
    base isolation
    natural time period
    base shear
    spectral
    acceleration
    Opis:
    Elevated water tanks in an empty condition, though not important in structural design, becomes an important problem in seismic design. The objective of the present research is to investigate the elevated water tanks in empty and in filled conditions and to emphasize the importance of seismic response. Four elevated tanks with various parameters are selected for seismic analysis with the base isolation technique. It is found out that empty tanks are highly vulnerable to earthquake effects, whereas filled tanks can be mitigated by providing base isolation. A simple experimental investigation has also been carried out to validate the analytical results.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2020, 58, 4; 885-899
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Katyń : stalinowska masakra i tryumf prawdy
    Autorzy:
    Paul, Allen.
    Współwytwórcy:
    Kunert, Zofia. Opracowanie
    Kalicki, Włodzimierz (1955- ). Recenzja
    Gelènzowski, Marek. Recenzja
    Pietrzak, Anna. Recenzja
    (MF). Komentarz
    (a.d.). Komentarz
    Data publikacji:
    2006
    Wydawca:
    Warszawa : Świat Książki -- Bertelsmann Media : Rada Ochrony Pamięci Walk i Męczeństwa
    Tematy:
    Egzekucja polskich oficerów w Katyniu recenzja
    Jeńcy wojenni polscy ZSRR 1939-1940 r. recenzja
    Opis:
    Tyt. oryg.: "Katyń : Stalin's massacre and the seeds of Polish resurrection" 1996. Publ. klubu Świat Książki nr 5527.
    Bibliogr. s. 381-385. Indeks.
    Rec.: Katyń po amerykańsku : Amerykanin Allen Paul opisał świat II Rzeczypospolitej i jego katastrofę / Włodzimierz Kalicki.
    Rec.: Katyń po amerykańsku / Włodziomierz Kalicki.
    Rec.: Katyń oczyma Amerykanina.
    Rec.: Stygmat Katynia / Anna Pietrzak.
    Omów.: Tajemnica rozkazu nr 13 / (ad).
    Omów.: Lekcja Katynia / (MF).
    Dostawca treści:
    Bibliografia CBW
    Książka
    Tytuł:
    Long wavelength type-II superlattice barrier infrared detector for CubeSat hyperspectral thermal imager
    Autorzy:
    Rafol, Sir B.
    Gunapala, Sarath D.
    Ting, David Z.
    Soibel, Alexander
    Khoshakhlagh, Arezou
    Keo, Sam A.
    Pepper, Brian J.
    Hill, Cory J.
    Maruyama, Yuki
    Fisher, Anita M.
    Sood, Ashok
    Zeller, John
    Wright, Robert
    Lucey, Paul
    Nunes, Miguel
    Flynn, Luke
    Babu, Sachidananda
    Ghuman, Parminder
    Powiązania:
    https://bibliotekanauki.pl/articles/2204204.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    type-II superlattice
    focal plane array
    infrared detector
    quantum efficiency
    noise equivalent difference temperature
    dark current density
    anti-reflective coating
    Opis:
    The hyperspectral thermal imaging instrument for technology demonstration funded by NASA’s Earth Science Technology Office under the In-Space Validation of Earth Science Technologies program requires focal plane array with reasonably good performance at a low cost. The instrument is designed to fit in a 6U CubeSat platform for a low-Earth orbit. It will collect data on hydrological parameters and Earth surface temperature for agricultural remote sensing. The long wavelength infrared type-II strain layer superlattices barrier infrared detector focal plane array is chosen for this mission. With the driving requirement dictated by the power consumption of the cryocooler and signal-noise-ratio, cut-off wavelengths and dark current are utilized to model instrument operating temperature. Many focal plane arrays are fabricated and characterised, and the best performing focal plane array that fulfils the requirements is selected. The spectral band, dark current and 8-9.4 μm pass band quantum efficiency of the candidate focal plane array are: 8-10.7 μm, 2.1∙10ˉ⁵ A/cm², and 47%, respectively. The corresponding noise equivalent difference temperature and operability are 30 mK and 99.7%, respectively. Anti-reflective coating is deposited on the focal plane array surface to enhance the quantum efficiency and to reduce the interference pattern due to an absorption layer parallel surfaces cladding material.
    Źródło:
    Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144569
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-19 z 19

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