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    Wyświetlanie 1-68 z 68
    Tytuł:
    Comment on periodic vegetarianism and the first mentions of a plant diet in Poland (Rocz Panstw Zakl Hig 2019;70:217-223)
    Autorzy:
    Hazyasz, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/876451.pdf
    Data publikacji:
    2019
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2019, 70, 4
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antennas of vehicles landing on a planet surface
    Autorzy:
    Belostotskaya, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/309160.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    anteny
    antenna system
    omnidirectional pattern
    active antenna
    Opis:
    The antenna systems designed under the international projects "Mars-96" and "Phobos" are described. The antenna system of Small station landing on Mars, in flight is packed under protective petals of the station and is opened on a surface with the help of flexible legs. The original scheme of excitation in the form of compact strip-geometry is described. The antenna system of the mobile vehicle landing on Phobos, provides the omnidirectional pattern on the basis of the combination of antenna methods with methods of processing of the received signal. The high efficiency of the antenna results from its construction in the form of an active antenna.
    Źródło:
    Journal of Telecommunications and Information Technology; 2001, 4; 52-55
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Woltamperometria cykliczna jako metoda oznaczania aktywności antyoksydacyjnej wybranych związków niskocząsteczkowych
    Cyclic voltammetry as a method of determining antioxidant activity of selected low-molecular compounds
    Autorzy:
    Laskowska, B.
    Kurleto, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1286566.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
    Tematy:
    woltamperometria cykliczna
    antyoksydanty
    cyclic voltammetry
    antioxidants
    Opis:
    W pracy przedstawiono wyniki badań dotyczące właściwości przeciwutleniających kwasu askorbinowego, kwasu kofeinowego, resveratrolu, zielonej herbaty, witaminy C (tabletka powlekana) oraz czerwonego wina - z wykorzystaniem metody woltamperometrii cyklicznej. Badania przeprowadzono w środowisku buforu fosforanowego o stałym pH. Analiza uzyskanych woltamogramów pozwoliła na porównanie właściwości antyoksydacyjnych wymienionych związków.
    The work presents results of cyclic voltammetric studies of antioxidant features of ascorbic acid, caffeic acid, resveratrol, green tea, vitamin C (a coated tablet) and red wine. The studies were preformed in a medium of constant pH phosphate buffer system. The close examination of results allowed to compare antioxidant features of the above compounds.
    Źródło:
    Chemik; 2011, 65, 10; 1059-1066
    0009-2886
    Pojawia się w:
    Chemik
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isobolographic interaction between AO-294, an enantiomer of losigamone, and valproate in the mouse model of maximal electroshock
    Autorzy:
    Borowicz, K.K.
    Jaszczyk, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/3738.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2007, 01, 1
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of IEM 1460 - a selective antagonist of GluR2-lacking AMPA receptors - on the action of conventional antiepileptic drugs against maximal electroshock in mice
    Autorzy:
    Borowicz, K.K.
    Banach, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/3599.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2007, 01, 1
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isobolographic interaction between AO-294, an enantiomer of losigamone, and phenobarbital in the mouse model of maximal electroshock
    Autorzy:
    Borowicz, K.K.
    Jaszczyk, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/3604.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2007, 01, 1
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Asymbiotic seed germination and multiplication of an endangered orchid - Paphiopedilum venustum (Wall. ex Sims.)
    Autorzy:
    Kaur, S.
    Bhutani, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/59316.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    The present study was intended to facilitate ex situ conservation of Paphiopedilum venustum, a highly floriferous endangered terrestrial orchid species. A protocol was established for in vitro propagation and shoot multiplication. The cultures were initiated through asymbiotic seed germination technique, using undehisced and dehisced capsules. Four defined asymbiotic orchid seed germination media (terrestrial orchid medium, modified terrestrial orchid medium, Malmgren modified terrestrial orchid medium, Knudson C medium) were evaluated for their effectiveness in achieving maximum seed germination and early seedling development. The effect of darkness and 12-h photoperiod was also tested. Optimum seed germination, i.e., 82.7% was achieved on modified terrestrial orchid medium under a 12-h photoperiod using seeds from undehisced capsules. Shoot multiplication was accomplished using organic [peptone (1.0, 2.0 g Lˉ¹)] and inorganic [banana homogenate (10, 20, 30 g Lˉ¹) and potato powder (5.0, 10 g Lˉ¹)] growth supplements. Peptone at 1.0 g Lˉ¹ was the most effective in multiplying the shoots. Plantlets were acclimatized in the greenhouse with 80% survival frequency.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2016, 85, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Osoby dramatu : desant pod Inczhon 15 września 1950 r
    Autorzy:
    Kubiak, Krzysztof (1952- ).
    k.k.
    Powiązania:
    Rzeczpospolita 2007, nr 287. Dod. "Bitwy Świata" nr 39 "Desant pod Inczhon 15 września 1950 r.", s. 11
    Data publikacji:
    2007
    Tematy:
    MacArthur, Douglas (1880-1964)
    Kim, Il Sung (1912-1994)
    Wojna 1950-1953 r. koreańska bitwy
    Bitwa 1950 r. o Inczhon dowódcy
    Bitwa 1950 r. o Seul dowódcy
    Operacje desantowe 1950 r.
    Opis:
    Fot.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
    Tytuł:
    Factors influencing the occurrence of pain and injury in runners
    Autorzy:
    Stachura, K.K.
    Dabrowska-Galas, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1787.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Opolski. Instytut Nauk o Zdrowiu
    Opis:
    Background: With the growth of running popularity, the number of running-related injuries has risen. Longterm training and inadequate training loads are only a few factors causing overload injuries amongst runners. Aim of the study: To determine factors influencing the onset of pain and injury in runners. Material and methods: The study involved 150 runners aged 17-64 years (mean age: 30 ± 10 years) and was conducted via a questionnaire containing questions concerning, for example, training frequency, location of pain, type of trauma, treatment and rehabilitation. Results: 38% (n = 57) of runners often felt pain during training. 41% of them (n = 23) reported pain after running short distances and it was most frequently located in the knee joints (26%, n = 15). 48% (n = 72) experienced a running injury. The largest percentage of these (36%, n = 26) were related to knee injuries. As factors causing injuries, the interviewees mentioned one-sided training plan (24%, n = 17), overtraining (24%, n = 17), and insufficient warm-up (16%, n = 12). The analysis of the results has shown a statistically relevant positive correlation (r = 0.177, p < 0.05) between weekly frequency of training and the number of injuries sustained in the last year. The higher the weekly frequency, the more often injures occur amongst runners. Conclusions: The study shows that the occurrence of pain and injury depends on many factors. A frequent cause of any disturbances within the musculoskeletal system is overloaded soft tissue caused by overtraining. Lower limbs, particularly knee joints, are mostly at risk.
    Źródło:
    Medical Science Pulse; 2018, 12, 3
    2544-1558
    2544-1620
    Pojawia się w:
    Medical Science Pulse
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kształtowanie ładu przestrzennego poprzez akta planowania przestrzennego na przykładzie gminy Serock
    Shaping of spatial order through acts on spatial planning on the example of the Serock municipality
    Autorzy:
    Pawlat-Zawrzykraj, A.
    Swornik, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/40651.pdf
    Data publikacji:
    2010
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    gmina Serock
    lad przestrzenny
    miejscowy plan zagospodarowania przestrzennego
    planowanie przestrzenne
    local spatial management plan
    Serock community
    spatial order
    spatial planning
    Źródło:
    Acta Scientiarum Polonorum. Architectura; 2010, 09, 3
    1644-0633
    Pojawia się w:
    Acta Scientiarum Polonorum. Architectura
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Extension support for grain crop producers under climate variability scenario: implications for extension management in Limpopo province, South Africa
    Rozszerzone wsparcie dla rolników prowadzących uprawę zbóż przeciwdziałające efektom zmian klimatycznych: przesłanki do stosowania rozszerzonego zarządzania w prowincji Limpopo w Afryce Południowej
    Autorzy:
    Afful, D.B.
    Ayisi, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/43194.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
    Tematy:
    extension support
    grain crop
    producer
    climate variability
    farm management
    Limpopo province
    South Africa
    Opis:
    The paper examined how the farm management support provided by public extension to mitigate the effects of climate variability influences farmers’ production, and whether this support considers farmers’ capital assets. Both probability and non-probability sampling procedures were used to select districts, municipalities and farmers from 20 villages of Limpopo province, South Africa in January, 2014. Semi-structured questionnaires were used to collect data from field-level extension agents and smallholder grain farmers. The most common climate variability coping strategy promoted by many agents was climate-smart agriculture practices. This strategy was applied by most users and non-users of extension support. The most popular channel used by agents to communicate information to farmers was farm visits. There were indications that agents did not consider producers’ capital assets in their choice of channels to communicate information to producers. Results further indicate that extension support, including climate variability information, contributed to increased crop yields, albeit small. It is recommended that field trials be done to ensure proper application of climate variability coping measures. More use of mass media and group methods to supplement farm visits is recommended.
    W artykule zbadano, jak wsparcie w zarządzaniu gospodarstwem – w ramach pomocy publicznej służącej złagodzeniu skutków zmienności klimatu – wpływa na produkcję w gospodarstwach i czy przy jego udzielaniu uwzględnia się zasoby kapitałowe tych gospodarstw. Do badań przeprowadzonych w styczniu 2014 roku wybrano powiaty, gminy i rolników z 20 wsi w prowincji Limpopo w Afryce Południowej, przy zastosowaniu doboru losowego i nielosowego. Do zbierania danych posłużyły specjalnie przygotowane kwestionariusze, wypełnione przez przedstawicieli terenowych i rolników prowadzących małe gospodarstwa rolne. Najczęściej wskazywaną przez przedstawicieli terenowych strategią radzenia sobie ze zmianami klimatycznymi było stosowanie metod prowadzenia gospodarstwa odpowiednio uwzględniających te warunki. Wykorzystywało ją większość osób, zarówno korzystających, jak i niekorzystających ze wsparcia. Przedstawiciele terenowi najczęściej przekazywali informacje bezpośrednio podczas wizyt w gospodarstwach. Wskazywano, że przedstawiciele nie uwzględniali zasobów kapitałowych gospodarstw przy udzielaniu wsparcia producentom rolnym. Wyniki wskazują również, że udzielane wsparcie uwzględniało przekazywanie informacji o zmianach klimatycznych mających wpływ na uprawy polowe, aczkolwiek w niewielkim stopniu. Zaleca się przeprowadzenie badań terenowych w celu zapewnienia właściwego stosowania strategii radzenia sobie ze zmianami klimatycznymi. Uzupełnieniem tego może być wykorzystanie mediów masowych i metod grupowych.
    Źródło:
    Journal of Agribusiness and Rural Development; 2016, 41, 3
    1899-5241
    Pojawia się w:
    Journal of Agribusiness and Rural Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Konflikty społeczne przy realizacji projektów Via Baltica i Rail Baltica
    Social conflicts in the implementation of the Via Baltica and Rail Baltica projects
    Autorzy:
    Dobrzyński, M.D.
    Butkiewicz, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/399108.pdf
    Data publikacji:
    2010
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    Rail Baltica
    konflikty społeczne
    konflikty konstruktywne
    social conflicts
    constructive conflicts
    Opis:
    The development of road and rail infrastructure is one of the priorities of EU transport policy. Transportation projects often result in conflicts with local communities. Conflicts make the implementation of projects expands and becomes more expensive. The same is true in the case of two transport projects Via Baltica and Rail Baltica. Already at the design stage, they led to a number of social conflicts in the ecological. Our aim is to show ways of resolving social conflicts and the possibility of applying them to solve problems concerning the implementation of transport projects. Proper preparation of the project on transport infrastructure should take into account not only its technical aspects but also social conditions. Preparatory activities, which may include public consultation, avoid protests and conflicts.
    Źródło:
    Ekonomia i Zarządzanie; 2010, 2, 4; 7-16
    2080-9646
    Pojawia się w:
    Ekonomia i Zarządzanie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Projected cost and profitability of investment in photovoltaic installations on agritourism farm
    Planowane koszty i opłacalność inwestycji fotowoltaicznych w gospodarstwie agroturystycznym
    Autorzy:
    Roman, M.
    Roman, K.K.
    Nuszkiewicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/862475.pdf
    Data publikacji:
    2017
    Wydawca:
    The Polish Association of Agricultural and Agribusiness Economists
    Tematy:
    project cost
    profitability
    investment
    photovoltaic installation
    agritourism farm
    renewable energy source
    electrical energy
    rural area
    Opis:
    The article aims to present projected cost and profitability of investment in photovoltaic installations on an agritourism farm. Special attention is drawn to economic efficiency of a system of photovoltaic modules installed on an agritourism farm hosting a four-member tourist group and using a photovoltaic system having a capacity of 5 kWp. It has also been assumed that the whole amount of electricity produced is used on the agritourism farm. The analysis results have taken into consideration the assumption estimating the use of energy at the level of about 5,000 kWh per year. The annual energy cost estimation is PLN 2,750 (5,000 kWh x PLN 0.55).
    Celem opracowania jest zaprezentowanie planowanych kosztów i opłacalność inwestycji fotowoltaicznych w gospodarstwie agroturystycznym. Szczególną uwagę zwrócono na efekt ekonomiczny zainstalowania systemu modułów fotowoltaicznych w gospodarstwie agroturystycznym, zamieszkałym przez czteroosobową grupę turystów wykorzystującą system fotowoltaiczny o mocy 5 kWp. Założono, że cała wyprodukowana energia elektryczna jest na bieżąco zużywana przez przykładowe gospodarstwo agroturystyczne. Wyniki analiz uwzględniały założenie charakteryzujące zużycie energii w gospodarstwie na poziome około 5000 kWh w ciągu roku, gdzie cena energii wynosiła średnio 0,55 zł za1 kWh energii elektrycznej. Kalkulując obliczenia za zużytą energię elektryczną w danym roku należało zapłacić 2750 zł (5000 kWh x 0,55 zł/kWh).
    Źródło:
    Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu; 2017, 19, 2
    1508-3535
    2450-7296
    Pojawia się w:
    Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wyniki badań wstępnych rozdzielania mieszaniny w tryjerze obiegowym za stożkową powierzchnią roboczą. Etap II. Separator z powierzchnią roboczą obracającą się wokół osi własnej zasilanej od strony większej średnicy
    Results of preliminary research into the separation of grain mixtures in a rotary grader with a conical working surface. Stage II. Grader with a working surface revolving around its own axis, supplied on the side of the larger diameter
    Autorzy:
    Jadwisienczak, K.K.
    Choszcz, J.
    Konopka, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2458.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Inżynierii i Techniki Przetwórstwa Spożywczego Spomasz; Politechnika Koszalińska. Katedra Procesów i Urządzeń Przemysłu Spożywczego
    Opis:
    Praca dotyczy oceny skuteczności rozdzielania dwuskładnikowej (modelowej) mieszaniny składającej się z cząstek długich (ziaren żyta) i krótkich (nasion gorczycy) w separatorze z powierzchnią roboczą w postaci ściętego stożka z wgłębieniami, którą zasilano od strony większej średnicy i wprawiano w ruch obrotowy wokół osi własnej. Podano stochastyczne modele opisujące wpływ podstawowych czynników konstrukcyjnych i eksplo-atacyjnych separatora na skuteczność rozdzielania mieszaniny.
    The aim of this study was to evaluate the separation efficiency of a two-component (model) mixture comprising long particles (rye kernels) and short particles (mustard seeds) in a grader with a working surface in the shape of a beveled cone with indented pockets, supplied on the side of the larger diameter and set into circular motion around its own axis. The paper presents stochastic models describing the effect of the grader's structural and operating parameters on separation efficiency.
    Źródło:
    Inżynieria Przetwórstwa Spożywczego; 2012, 1
    2084-9494
    2300-2018
    Pojawia się w:
    Inżynieria Przetwórstwa Spożywczego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anticonvulsant activity of convntional antiepileptic drugs unaltered by vinpocetine in mouse model of epilepsy
    Autorzy:
    Borowicz, K.K.
    Swiader, M.
    Banach, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/3020.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2007, 01, 1
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of selected biostimulants on the yield and quality of the common onion (Allium cepa L.)
    Autorzy:
    Mikulewicz, E.
    Majkowska-Gadomska, J.
    Jadwisienczak, K.K.
    Francke
    Powiązania:
    https://bibliotekanauki.pl/articles/2083601.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    morphology
    nutritional value
    biostimulants
    total yield
    common onion
    Opis:
    A field experiment was conducted in 2017-2018 in the Agricultural Experiment Station owned by the University of Warmia and Mazury in Olsztyn. The experiment had a randomized block design with three replications. The first experimental factor was a number of common onion cultivars: ‘Whitney Wing F1’, ‘Spirit F1’ and ‘Red Baron’. The second experimental factor was the effect of two plant growth biostimulants; Calleaf Aminovital and Maximus Amino Protect, on the yield and quality of the onions. In the control treatment, plots were sprayed with water. The total yield, marketable yield and the marketable yield as a percentage of the total yield, the weight, vertical diameter and horizontal diameter of each onion bulb, the content of dry matter, total sugars, reducing sugars, L-ascorbic acid and nitrates (V) in the onions were determined in the study. The evaluated cultivars differed significantly with regard to the weight and size of the onions. Onions of cv. ‘Whitney Wing F1’ were characterized by a greater yield, and the weight, vertical diameter and horizontal diameter of the bulbs were all higher than they were for the remaining cultivars. The concentrations of dry matter, total sugars, L-ascorbic acid and nitrates (V) were higher in cv. ‘Red Baron’. The contents of L-ascorbic acid and nitrates (V) were significantly affected by the application of biostimulants, and the effects were more pronounced for onions treated with Maximus Amino Protect. The interaction between the experimental factors had a significant effect on the weight of individual onion bulbs, and on the concentrations of dry matter and L-ascorbic acid in the edible plant parts.
    Źródło:
    Acta Agrophysica; 2019, 26, 1; 57-65
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of flotation conditions in the beneficiation of PGMs tailings
    Autorzy:
    Hlotse, Daphney
    Mbaya, Richard K.K.
    Shongwe, Mxolisi B.
    Powiązania:
    https://bibliotekanauki.pl/articles/27323658.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    PGMs tailings
    beneficiation
    flotation
    particle size
    reagent dosage
    Opis:
    For several years, mining waste has shown a negative impact on both the environment and human health. The mining industry remains the backbone of the economic growth. Different technologies have been implemented to beneficiate and recover platinum group metals from tailings. The recycling of tailings has been a point of research interest due to their extensive applications. Flotation has been the primary process of upgrading and recovering PGMs. The focus of this study was to optimize flotation conditions in the beneficiation of PGMs for particular small-scale mine tailings. This was done to obtain the most favourable conditions for the small-scale mine tailings to improve operating conditions of specific particle sizes. PGMs tailings obtained from a small-scale mine were characterized using XRD, XRF, SEM/EDS, and ICP – OES to understand the properties of the tailings prior to mineral processing. Flotation batch tests were conducted. The results showed that the chosen particle size was 75 µm, and the favorable reagent dosages were 150 g/Mg and 100 g/Mg for SIBX (collector) and Starch(depressant), respectively. At favourable conditions, the recovery was 65.75% (Pt = 70.38%, Pd = 59.33%, Ru = 34.56%), and the grade was 31.46 g/Mg (Pt = 21.43 g/Mg, Pd = 9.62 g/Mg, Ru = 0.41 g/Mg). It can be concluded that all the flotation parameters are related; lower particle sizes yield high recoveries and better grades due to the exposure of the particle surface to the reagents responsible for the flotation of the PGMs. It was observed that the high collector dosages produce high recoveries with low grades of PGMs. High depressant dosages produce low recoveries with high grades of PGMs. The relationship between the collector and the depressant is of essential importance in the flotation process.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2023, 59, 6; art. no. 176859
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of fluoxetine on the anticonvulsant action of valproate and ethosuximide in mouse model of myoclonic convulsions
    Autorzy:
    Borowicz, K.K.
    Piskorska, B.
    Stepniak, B.
    Czuczwar, S.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/50030.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Medycyny Wsi
    Opis:
    Depression is becoming a growing problem in rural areas. This psychiatric disorder often accompanies epilepsy. The aim of this study was to assess the influence of fluoxetine (FXT), a commonly used antidepressant, on the protective action of two conventional antiepileptic drugs: ethosuximide (ETX) and valproate (VPA), against pentylenetetrazole (PTZ)-induced convulsions in mice. Motor coordination and long-term memory deficits induced by FXT, antiepileptic drugs alone and in combinations with FXT were assessed in the chimney test and passive-avoidance task, respectively. Brain concentrations of ETX and VPA were measured by immunofluorescence. Obtained results indicate that FXT at the dose of 15 mg/kg (ip, 30 min before the test) significantly increased the threshold for clonic convulsions. The antidepressant drug at lower doses remained ineffective in this respect. Moreover, FXT at the highest subprotective dose (10 mg/kg, ip) markedly enhanced the anticonvulsant effects of VPA, but not of ETX, against PTZ-induced seizures. The interaction between FXT and VPA seems to be pharmacodynamic because the antidepressant drug did not alter the brain concentration of VPA. With regard to adverse effects, FXT, VPA, ETX, and the combinations of FXT with antiepileptic drugs, did not impair motor coordination and long-term memory in mice. In conclusion, the combination of FXT with VPA may be advantageous in the treatment of myoclonic epilepsy, and therefore it should be recommended for further study in clinical conditions.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2012, 19, 3
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of cold night temperature on flowering of Kalanchoe species
    Autorzy:
    Coelho, L.L.
    Mackenzie, K.K.
    Lütken, H.
    Müller, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/11867521.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    ornamental plant
    flowering plant
    Kalanchoe
    Kalanchoe longiflora
    Kalanchoe marmorata
    Kalanchoe prittwitzii
    photoperiod
    flowering induction
    cold temperature
    night temperature
    Opis:
    Control of flower induction is one of the most important aims in the floriculture industry as it determines the usefulness of plants for cross-pollination and production of flowering plants. The Kalanchoë genus contains around 140 species and numerous interspecific hybrids with a broad range of morphological traits, which makes this genus one of the most cultivated potted plants in the world. Commercial cultivars are easily induced to flowering by short days photoperiod, however, the number of species used for breeding is limited due to the lack of knowledge of flower inducing factors. Many studies suggested that cold night temperature can positively affect flowering in some Kalanchoë species. This study aimed to evaluate flowering in K. prittwitzii, K. marmorata and K. longiflora exposed to different night temperatures (6°C, 12°C and 18°C) combined with short day photoperiod (8 h). K. prittwitzii exhibited 100% flowering in all treatments, and flowering was enhanced by low night temperatures. K. marmorata had minimal flowering response to the treatments and K. longiflora did not flower in any of the treatments. The results support a postulate that interaction between different stimuli is required for flower induction in Kalanchoë species and demonstrate that night temperature can modify the flowering response. Therefore, the interaction between different factors during the plant life cycle requires further investigation.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 3; 121-125
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation Process of Coating Interlayer and the Performance of EH40/2205-Clad Plate with Interlayer
    Autorzy:
    Feng, K.K.
    Yi, Yali
    Qin, Y.
    Jin, Herong R.
    Powiązania:
    https://bibliotekanauki.pl/articles/27765059.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    element diffusion
    interlayer coating
    mechanical properties
    numerical simulation
    stainless steel-clad plate
    Opis:
    This study aimed to investigate the effect of different coating processes on interlayer coating using ProCAST software and identify the preferred coating process so as to prepare an EH40/2205 composite plate with a coating interlayer of Ni-5 Fe-15 Co (wt.%) displaying good performance. The preparation and characterization tests were conducted to analyze the interlayer coating, the diffusion of elements at the bonding interface and the mechanical properties of the hot-rolled composite plate. The results showed that the coating rate increased linearly with an increase in the initial coating temperature, pressure difference and the width ratio of the suction layer. The interlayer coating was complete under the guidance of optimized process parameters, and the test results and simulations confirmed each other. The coated interlayer successfully blocked the diffusion of elements between the bonding surfaces. The tensile strength of the rolled composite plate was 580 MPa, which met the needs of the project. The tensile shear fracture occurred at EH40, which proved that the plate was well bonded.
    Źródło:
    Archives of Metallurgy and Materials; 2023, 68, 2; 591--598
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected physico-mechanical characteristics of cryogenic and ambient ground turmeric
    Autorzy:
    Barnwal, P.
    Mohite, A.M.
    Singh, K.K.
    Kumar, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/25528.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    physical characteristics
    mechanical characteristics
    cryogenic grinding
    ambient grinding
    turmeric
    Curcuma longa
    packaging
    handling
    storage
    Opis:
    In this communication, selected physicomechanical characteristics of ground turmeric (cv. Prabha) were investigated for cryogenic and ambient grinding conditions of turmeric at different moisture contents (4, 6, 8 and 10% w.b.). A cryogenic grinder (Model: 100 UPZ, Hosokawa Alpine, Germany) and a micro pulverizer (hammer mill) were used for cryogenic and ambient grinding, respectively. The ground turmeric was graded in three grades viz. Gr-I, Gr-II and Gr-III with a sieve shaker using BSS Nos. 40, 85 and pan, respectively. Tap densities for cryogenic and ambient ground turmeric decreased from 678.7 (Gr-I) to 546.7 kgm-3 (Gr-III) and from 642.3 (Gr-I) to 468.6 kgm-3 (Gr-III), respectively, with the moisture increase. The angle of repose for cryogenic and ambient ground turmeric increased linearly from 26.85 (Gr-I) to 34.0° (Gr-III) and from 23.10 (Gr-I) to 28.06° (Gr-III), respectively with the increase in moisture content. The static coefficient of friction was the highest on plywood surface followed by mild steel sheet and galvanized iron sheet. The cryoground samples were found better in colour. Thermal conductivity of cryo-ground samples was higher than that of ambient ground samples. These physico-mechanical characteristics of cryogenic and ambient ground turmeric will be helpful for packaging, handling, and storage.
    Źródło:
    International Agrophysics; 2014, 28, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The diversity of cimolestan mammals within the White River Group of South Dakota and Nebraska
    Autorzy:
    Boyd, C.A.
    Weiler, M.W.
    Householder, M.L.
    Schumaker, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/22320.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    The synonymization of the cimolestan taxa Cymaprimadon and Chadronia from the Late Eocene Chadron Formation is consistently upheld, despite a lack of supporting evidence. Here we show that the synonymization is unjustified, owing to distinct differences between these taxa in the mandibular tooth count (1-1-3-3 vs. ?-1-4-3), the identity of the enlarged anterior mandibular tooth (incisor versus canine), and the morphology of the crown of m3 (e.g., paraconid on m3 in Cymaprimadon). We also refer a specimen recently collected from the Early Oligocene Brule Formation within the Badlands National Park (BADL 16917) to Chadronia sp., thus making it the youngest occurrence of a pantolestan from North America. Examination of an additional specimen (FMNH UC 349) revealed the presence of a further cimolestan taxon in the White River Group of South Dakota, although the poor quality of the locality and stratigraphic data associated with this specimen precludes erecting a formal name. In total, this study doubles the number of cimolestans from the Late Chadronian and Orellan (Ch4 to Or1) of North America from two to four, and extends the biostratigraphic range of Pantolesta into the North American Oligocene.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plant parasitic nematodes in the soil and roots of winter wheat grown in crop rotation and long-term monoculture
    Autorzy:
    Zaton, K.K.
    Skwiercz, A.T.
    Adamiak, E.
    Szelagowska, P.
    Hury, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/66002.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    plant parasite
    parasitic nematode
    nematode
    pathogenic fungi
    cereal virus
    soil
    root
    wheat
    winter wheat
    crop rotation
    long-term monoculture
    Opis:
    The species structure of plant parasitic nematode populations from the rhizosphere of winter wheat grown with crop rotation or in 48-year-old monoculture was analyzed and compared. Dominating species: Bitylenchus dubius, Merlinius microdorus, Paratylenchus neglectus and Heterodera avenae, in monoculture plots, had higher populations than in crop rotation plots. Heterodera avenae eggs and larvae were infected by pathogenic fungi in 68% of the monoculture crops (vs. 65–66% of the cysts from crop rotation), 12–20% of Paratylenchus sp. specimens were colonized by bacteria, mainly by Bacillus penetrans. This study shows nematological changes occurring in long-term wheat breeding, thus providing additional information necessary to fight dangerous viral vectors of the examined cereal.
    Źródło:
    Journal of Plant Protection Research; 2018, 58, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The first Triassic vertebrate fossils from Myanmar: Pachypleurosaurs in a marine limestone
    Autorzy:
    San, K.K.
    Fraser, N.C.
    Foffa, D.
    Rieppel, O.
    Brusatte, S.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/22324.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    As ecosystems recovered from the end-Permian extinction, many new animal groups proliferated in the ensuing Triassic. Among these were the sauropterygians, reptiles that evolved from terrestrial ancestors and transitioned to a marine environment. The first sauropterygians were small, marine-adapted taxa such as pachypleurosaurs, which are known from Middle–Late Triassic deposits, particularly in the Tethyan realm of Europe, and more recently from Lagerstätten in southwestern China. Here we report two pachypleurosaurs from Myanmar, the first Triassic vertebrate fossils from the country. These specimens demonstrate that their entombing rocks in northern Shan State, which have received less study than terrestrial sediments in southern Shan State and whose ages have long been uncertain, are Triassic. The specimens may be among the oldest pachypleurosaurs globally, potentially corroborating biogeographic scenarios that posit an eastern Tethyan origin for pachypleurosaurs, and raise the potential for future discoveries of well-preserved Triassic reptiles in Myanmar.
    Źródło:
    Acta Palaeontologica Polonica; 2019, 64, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of ethanol extract of Graptophyllum pictum (L.) Griff. on cisplatin induced nephrotoxicity in rats
    Wpływ wyciągu alkoholowego z Graptophyllum pictum (L.) na działanie cisplatyny wywołującej nerfotoksyczność u szczurów
    Autorzy:
    Srinivasan, K.K.
    Mathew, J.E.
    Joseph, K.
    Vachala, S.D.
    Malini, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/71148.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    ethanol extract
    Graptophyllum pictum
    antioxidant
    cisplatin
    nephrotoxicity
    rat
    Opis:
    The purpose of the present study is to investigate whether the alcoholic extract of Graptophyllum pictum (L.) Griff. could decrease the intensity of nephrotoxicity in albino rats. Cisplatin at a single dose of 12 mg/kg body weight was administered intraperitonially to albino male Wistar rats. Nephrotoxicity was assessed by determining the serum creatinine and urea levels as well as renal antioxidant status in rats after cisplatin administration. Ethanolic extract of G. pictum at 150 and 300 mg/kg body weight was administered orally after cisplatin injection for 15 days. The extracts could significantly reduce the elevated serum creatinine and urea levels. Renal antioxidant defence systems, such as superoxide dismutase, catalase, glutathione peroxidase activities and reduced glutathione level, depleted by cisplatin therapy were restored to normal by treatment with the extract. Cisplatin induced lipid peroxidation was also found markedly reduced by treatment with the extract. This result indicated that ethanolic extract of G. pictum rendered significant preventive effect against cisplatin induced nephrotoxicity.
    Celem niniejszej pracy było zbadanie właściwości wyciągu alkoholowego z Graptophyllum pictum (L.) zmniejszającej nefrotoksyczność indukowaną cisplatyną u szczurów. Cisplatynę podawano szczurom dootrzewnowo w pojedynczej dawce w ilości 12 mg/kg masy ciała. Nefrotoksyczność oceniono na podstawie określenia stężenia kreatyniny w surowicy, poziomu mocznika, a także aktywności przeciwutleniającej nerek u szczurów. Wyciąg alkoholowy z G. pictum podawano dożołądkowo w dawkach od 150 do 300 mg/kg masy ciała przez 15 dni po uprzednim podaniu cisplatyny. Wykazano, że podawanie ekstrakty mogą istotnie obniżyć stężenie mocznika i kreatyniny podwyższone przez cisplatynę. Ponadto podawanie cisplatyny wywołało zaburzenia w działaniu dysmutazy ponadtlenkowej, kata65 Effect of ethanol extract of Graptophyllum pictum (L.) Griff. on cisplatin induced nephrotoxicity in rats lazy, peroksydazy glutationowej, powodując zaburzenia mechanizmów obronnych nerek oraz obniżenie poziomu glutationu, natomiast ich prawidłowe funkcjonowanie zostało przywrócone po podaniu ekstraktu. Badanie również wykazało, że wzrost poziomu peroksydacji tłuszczów wywołany za pomocą cisplatyny zostaje znacznie zmniejszony w wyniku podawania ekstraktu. Przedstawione wyniki badań wskazują na prewencyjne działanie wyciągu alkoholowego otrzymanego z G. pictum przeciwko nefrotoksyczności indukowanej cisplatyną.
    Źródło:
    Herba Polonica; 2011, 57, 2
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of chosen fruit seeds oils as potential biofuel
    Autorzy:
    Agbede, O.O.
    Alade, A.O.
    Adebayo, G.A.
    Salam, K.K.
    Bakare, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/26028.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    Oils available in mango, tangerine and African star seeds were extracted and characterized to determine their fuel worthiness for biofuel production. Furthermore, the fuel properties of the three oils were within the range observed for some common oil seeds like rapeseed, soybean and sunflower, which are widely sourced for the production of biodiesel on an industrial scale. The low iodine values of the oil extend their applications as non-drying oil for lubrication purposes, however, the fuel properties exhibited by the oils enlist them as potential oil seeds for the production of biofuel and further research on the improvement of their properties will make them suitable biofuel of high economic values.
    Źródło:
    International Agrophysics; 2012, 26, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new method for measurement the residual stresses in friction stir welding
    Autorzy:
    Jweeg, M.J.
    Hamdan, Z.Kh.
    Majeed, A.H.
    Resan, K.K.
    Al-Waily, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2175734.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    FSW
    residual stress
    tensile test
    stress concentration
    AA 6061
    naprężenie szczątkowe
    próba rozciągania
    koncentracja naprężeń
    AA6061
    Opis:
    Purpose: The residual stresses in different welding methods are fundemental problems to consider. Friction stir welding is one of a solid state joining process, it is economical in that it permits joining together different materials, the specimens in this method (FSW) have excellent properties of mechanical as proven by tensile, flextural and fatigue tests, also it is environmentally friendly process minimizes consumption of energy and generate no gasses or smoke. In friction stir welding , there are two kinds of generated residual stresses: tensile stress and compressive stress. So, this study measuring the residual stresses by using a new method for measuring residual stresses depends on tensile testing and stress concentration factor, this method is a simple, fast and low cost, also it is not need special device. Design/methodology/approach: In previous studies, several techniques were used to predict the value of residual stress and its location, such as destructive, semi-destructive, and non-destructive methods. In this study, a simple, new, and inexpensive way was used based on the tensile test and stress concentration of the friction stir welding (FSW). Findings: By comparing the results obtained with the previous studies using the X-ray method, with the current research, it was found that the results are good in detecting the location and value of the residual stress of friction stir welding. The value of discrepancy of the residual stress in the results between those obtained by the previous method and the current method was about 3 MPa. Research limitations/implications: There are many rotational and linear feeding speeds used in this type of welding. This research used two plates from 6061 AA with 3mm thickness, 100 mm width, and 200 mm length. The rotational speed used in friction stir welding was 1400 rpm, and the feeding speed was 40 mm/min. Practical implications: The residual stress obtained with the new method is 6.2 MPa, and this result approximates other known methods such as the X-ray method in previus studies. Originality/value: Using a new simple method for measuring residual stresses of friction stir welding depends on stress concentration factor and tensile testing. This method is fast and low cost , also it is not need specialized device, compared to other methods such as x-ray or hole drilling methods.
    Źródło:
    Archives of Materials Science and Engineering; 2021, 112, 2; 63--69
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hyperelastic models for the description and simulation of rubber subjected to large tensile loading
    Autorzy:
    Jebur, Q.H.
    Jweeg, M.J.
    Al-Waily, M.
    Ahmad, H.Y.
    Resan, K.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2175788.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    rubber
    carbon black
    filler
    hyperelastic models
    Abaqus
    FEM
    guma
    sadza
    wypełniacz
    modele hiperelastyczne
    MES
    Opis:
    Purpose: Rubber is widely used in tires, mechanical parts, and user goods where elasticity is necessary. Some essential features persist unsolved, primarily if they function in excessive mechanical properties. It is required to study elastomeric Rubber's performance, which is operational in high-level dynamic pressure and high tensile strength. These elastomeric aims to increase stress breaking and preserve highly pressurised tensile strength. Design/methodology/approach: The effects of carbon black polymer matrix on the tensile feature of different Rubber have been numerically investigated in this research. Rubber's material characteristics properties were measured using three different percentages (80%, 90%and 100%) of carbon black filler parts per Hundreds Rubber (pphr). Findings: This study found that the tensile strength and elongation are strengthened as the carbon black filler proportion increases by 30%. Practical implications: This research study experimental tests for Rubber within four hyperelastic models: Ogden's Model, Mooney-Rivlin Model, Neo Hooke Model, Arruda- Boyce Model obtain the parameters for the simulation of the material response using the finite element method (FEM) for comparison purposes. These four models have been extensively used in research within Rubber. The hyperelastic models have been utilised to predict the tensile test curves—the accurate description and prediction of elastomer rubber models. For four models, elastomeric material tensile data were used in the FEA package of Abaqus. The relative percentage error was calculated when predicting fitness in selecting the appropriate model—the accurate description and prediction of elastomer rubber models. For four models, elastomeric material tensile data were used in the FEA package of Abaqus. The relative percentage error was calculated when predicting fitness in selecting the appropriate model. Numerical Ogden model results have shown that the relative fitness error was the case with large strains are from 1% to 2.04%. Originality/value: In contrast, other models estimate parameters with fitting errors from 2.3% to 49.45%. The four hyperelastic models were tensile test simulations conducted to verify the efficacy of the tensile test. The results show that experimental data for the uniaxial test hyperelastic behaviour can be regenerated effectively as experiments. Ultimately, it was found that Ogden's Model demonstrates better alignment with the test data than other models.
    Źródło:
    Archives of Materials Science and Engineering; 2021, 108, 2; 75--85
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identifying the main sources of silicate in coastal waters of the Southern Gulf of Valencia (Western Mediterranean Sea)
    Autorzy:
    Sospedra, J.
    Niencheski, L.F.H.
    Falco, S.
    Andrade, C.F.F.
    Attisano, K.K.
    Rodilla, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/48753.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    silicon
    coastal water
    Valencia Gulf
    Mediterranean Sea
    salinity
    discharge
    nutrient
    marine environment
    Opis:
    Silicon is a major nutrient for siliceous primary producers, which can become a potential limiting nutrient in oligotrophic areas. Most of the silicon inputs to the marine environment come from continental discharges, from both superficial and ground waters. This study analyses the main sources of silicon and their dynamics along the southernmost 43 km of shoreline in the Gulf of Valencia (Western Mediterranean Sea). The salinity and silicate concentration in the different compartments (springs, freshwater wells, beach groundwater, surf zone and coastal waters) in this coastal area were determined. In addition, chlorophyll a and phytoplankton community were analyzed in the surf zone and coastal waters. Silicate concentrations in freshwater wells ranged between 130 and 150 μM, whereas concentrations of this nutrient declined to 49 μM in freshwater–seawater mixture transects. At the same time, there was a positive gradient in silicate for both freshwater and coastal waters southward. An amount of 18.7 t of dissolved silicate was estimated in the nearest first kilometre nearest to the coastline, 6 t of this silicate belonged to the background sea level. On the other hand, the sum of the main rivers in the area supplies 1.6 t of dissolved silicate per day. This implies that a large amount of the remaining 11.1 t must derive from submarine groundwater discharges, which would thus represent 59% of the coastal dissolved silicate budget. Overall, it is suggested that a subterranean transport pathway must contribute considerably to silicate concentrations throughout this zone, which is characterized as permeable.
    Źródło:
    Oceanologia; 2018, 60, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    SYBR Green-based real-time polymerase chain reaction assay for detection of porcine parvovirus 6 in pigs
    Autorzy:
    Sun, P.
    Bai, C.X.
    Zhang, D.
    Wang, J.
    Yang, K.K.
    Cheng, B.Z.
    Li, Y.D.
    Wang, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087328.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    porcine parvovirus 6
    real-time polymerase chain reaction
    SYBR Green
    Źródło:
    Polish Journal of Veterinary Sciences; 2020, 23, 2; 197-202
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-68 z 68

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