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    Tytuł:
    Urogenital Chlamydia trachomatis in the environment of soldiers from the Polish Special Forces
    Autorzy:
    Korzeniewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082927.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    RT-PCR
    Chlamydia trachomatis
    Polish soldiers
    Opis:
    Introduction and objective. Urogenital Chlamydia trachomatis is one of the most common sexually transmitted bacterial pathogens. The aim of the study was to present the current occurrence of chlamydial infections among Polish soldiers, sexually-active men and women at reproductive age. Materials and method. The research involved 253 active duty soldiers from the Polish Special Forces, 237 men and 16 women aged 26–57, stationed in Warsaw between October – November 2016. The study participants were asked to fill a socio-demographic questionnaire and then subjected to diagnostic tests. These included a urine test for the presence of Chlamydia trachomatis DNA using the Real-Time PCR assay with fluorescently labeled markers and probes, complementary to plasmid DNA of the bacteria (DNA isolated from urine samples was used as matrix). Results. Chlamydia trachomatis infection was detected in two male soldiers, non-commissioned officers, at mean age 40.5 years (total: 38.0 years); reporting sexual contacts with 2–3 partners in the last 12 months (total: 141 soldiers – 1 partner, 66 – 2–3 partners, 46 – >4 partners), with no UTI symptoms. Conclusions. Among all the study participants, of whom more than 40% reported sexual contacts with 2–4 or more partners within the last 12 months, only 0.8% were found to be infected. The low prevalence of Chlamydia trachomatis infection can be associated with a regular or frequent use of STI prevention measures during casual sex, or having a single sexual partner.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2019, 26, 1; 51-54
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detection of Giardia intestinalis assemblages in formalin fixed stool samples collected from school children in the Ghazni Province, eastern Afghanistan
    Autorzy:
    Lass, A.
    Korzeniewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/6510.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    detection
    Giardia intestinalis
    child
    school child
    intestinal parasite
    parasitic disease
    human disease
    prevalence
    Ghazni province
    Afghanistan
    Źródło:
    Annals of Parasitology; 2016, 62, Suppl.
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prevalence of Plasmodium spp. in symptomatic BaAka Pygmies inhabiting the rural Dzanga Sangha region of the Central African Republic
    Autorzy:
    Bylicka-Szczepanowska, E.
    Korzeniewski, K.
    Lass, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/28762733.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2021, 28, 3; 483-490
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Leprosy - neglected tropical disease in Pygmies inhabiting Central African Republic
    Autorzy:
    Bylicka-Szczepanowska, E.
    Podlasin, R.B.
    Korzeniewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/28763049.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2023, 30, 3; 570-576
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dangerous land & sea - borne creatures posing hazard to recreational divers in the tropical climate
    Niebezpieczne zwierzęta lądowe i morskie będące zagrożeniem dla nurków rekreacyjnych w klimacie tropikalnym
    Autorzy:
    Korzeniewski, K.
    Damme-Ostapowicz, K. van
    Gulyar, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/366260.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
    Tematy:
    zwierzęta lądowe i morskie
    nurkowanie
    klimat tropikalny
    land and sea-borne creatures
    diving
    tropical climate
    Opis:
    Due to intensively growing international tourism, increasing numbers of people leave for countries with hot climates, where various threats for human health and life exist. Besides climatic and sanitary conditions, a rich fauna, represented by predators and venomous animals, can be included. Based on available world literature and their own observations, the authors present the threats that a tourist can possibly encounter whilst relaxing on the beach or during recreational diving in tropical waters. When staying in water, a large threat is posed by marine fish of prey (sharks, barracuda, muraena), Cnidaria (jellyfish, corals, anemones) and venomous animals (fish, sea snakes). On land, on the other hand, a threat can be posed by venomous arthropoda (scorpions, spiders) and Hymenoptera insects. The study presents the most important representatives of fauna present in coastal areas frequently visited by diving enthusiasts. Also, clinical image and conduct in the case of body injures are discussed.
    W związku z intensywnie rozwijającą sie turystyką miedzynarodową, coraz więcej osób wyjeżdża do krajów strefy klimatu goracego, gdzie wystepują różnorodne czynniki stwarzające realne zagrożenie dla zdrowia i życia człowieka. Oprócz warunków klimatycznych i sanitarnych zalicza sie do nich także bogatą faunę reprezentowaną przez drapieżniki i zwierzeta jadowite. Autorzy pracy na podstawie piśmiennictwa światowego oraz własnych obserwacji przedstawiają zagrożenia, z jakimi może spotkać się potencjalny turysta podczas wypoczynku na plaży oraz nurkowań rekreacyjnych w wodach tropikalnych. W czasie pobytu w wodzie duże niebezpieczeństwo dla człowieka stwarza spotkanie z drapieżnymi rybami morskimi (rekiny, barakudy, mureny), parzydełkowcami (meduzy, koralowce, ukwiały) oraz zwierzętami jadowitymi (ryby, weże morskie). Z kolei na lądzie zagrożeniem sa jadowite stawonogi (skorpiony, pająki) oraz owady błonkoskrzydłe. W pracy przedstawiono głównych reprezentantów fauny występujacej w rejonach nadmorskich, często odwiedzanych przez amatorów nurkowania. Omówiono również obraz kliniczny i postępowanie w przypadku doznanych obrażen ciała.
    Źródło:
    Polish Hyperbaric Research; 2008, 2(23); 7-15
    1734-7009
    2084-0535
    Pojawia się w:
    Polish Hyperbaric Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Intestinal parasitic infections in a population of BaAka Pygmies inhabiting the Congo Basin in the Central African Republic
    Autorzy:
    Korzeniewski, K.
    Augustynowicz, A.
    Bylicka-Szczepanowska, E.
    Pokorna-Kałwak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/28762829.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2021, 28, 1; 127-130
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Frequency based islanding detection methods in power electronic converters
    Autorzy:
    Dmitruk, K.
    Korzeniewski, M.
    Sikorski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1193396.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    anti-islanding protection
    active frequency drift
    grid converter
    Opis:
    Frequency based methods developed to detect an islanding condition in modern power grid structures have been discussed. The condition may occur in power grid lines to which additional energy sources with power electronic converters have been connected such as solar panels or wind turbines. It is a hazardous operating state for grid workers and devices connected to the islanded part of the grid. Such a state results from the inability to control amplitude and frequency of basic harmonic of the grid voltage. An islanding problem in a power grid with additional small energy sources has been discussed. A basic passive and active islanding detection method have been presented and compared with known frequency based algorithms, namely active frequency drift and active frequency drift with a positive feedback algorithm. Finally, a laboratory test of the proposed islanding detection methods in a three-phase grid with an AC-DC converter has been conducted. To demonstrate differences between the tested methods, total harmonic distortion injected into the output converter current and detection time of islanding state have been measured.
    Źródło:
    Power Electronics and Drives; 2017, 2, 37/1; 27-41
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modern Direct Torque and Flux Control methods of an induction machine supplied by three-level inverter
    Autorzy:
    Sikorski, A.
    Kulikowski, K.
    Korzeniewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/201199.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    asynchronous machine
    DC/AC inverter
    DTC
    flux and torque control
    3-level DC/AC inverter
    Opis:
    This paper describes two modern direct torque and flux control methods of an induction machine supplied by a three-level inverter. Additionally, it presents a comparison of the methods both in static and dynamic states. The methods, in a specific way, make use of an increased number of active vectors of the three-level inverter in order to improve control quality and reduce switching frequency. The two methods modify the DTC method by using its advantages and eliminating, at the same time its drawbacks. In static states the comparison was based on the results of investigations performed for two different load values and three set values of angular speed, whereas in dynamic states the comparison was focused on the behavior of the machine at startup. The results of the investigations have shown that both methods give very good performance. They are characterized by both sinusoidal shape of flux and low current deformations even at low angular speeds i.e. less than 10% of the nominal value. The presented methods also allow to generate nominal flux for set zero angular speed in order to achieve excitation of the induction machine. The switching frequencies for both methods are very similar in almost the whole range of control but the methods have shown some differences in control quality, particularly for higher torque values.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 4; 771-778
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Properties of active rectifier with LCL filter in the selection process of the weighting factors in finite control set-MPC
    Autorzy:
    Falkowski, P.
    Sikorski, A.
    Kulikowski, K.
    Korzeniewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/200718.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    model predictive control (MPC)
    active front end converters
    inductive-capacitive-inductive (LCL) filter
    weighting factors selection
    Opis:
    One of the main problems of multivariable cost functions in model predictive control is the choice of weighting factors. Two finite control set model predictive control algorithms, applied to the three-phase active rectifier with an LCL filter, are described in the paper. The investigated algorithms, i.e. PCicuc and PCigicuc, implement multivariable approaches applying line (grid) current, capacitor voltage and converter current. The main problem dealt with in the paper is the choice of optimum values of the cost function weighting factors. The values of the factors calculated using the method proposed in the paper are very close to the values represented by the lowest THDi of the line current. Moreover, simulations verifying the equations used in the prediction of controlled values, i.e. line current, capacitor voltage and converter current, are presented. Both simulation and experimental results are presented to verify effectiveness of the investigated control strategies under change of the load (P = 5 kW and 2.5 kW), during transient states, under unbalanced and balanced line voltage.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 1; 51-60
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Implementation of a Web-based remote control system for qZS DAB application using low-cost ARM platform
    Autorzy:
    Korzeniewski, M.
    Kulikowski, K.
    Zakis, J.
    Jasiński, M.
    Malinowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/201276.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ARM processor
    DAB converter controller
    network controller
    web-based user interface
    energy control
    procesor ARM
    kontroler
    konwerter
    kontroler sieciowy
    interfejs użytkownika oparty na sieci Web
    kontrola energii
    DAB
    Opis:
    Continuous development of intelligent network applications drives the demand for deployment-ready hardware and software solutions. Such solutions are highly valued not only by distributed producers of energy but by energy consumers as well. The use of intelligent network applications enables the development and improvement of the quality of services. It also increases self-sufficiency and efficiency. This paper describes an example of such device that allows for the control of a dual active bridge (DAB) converter and enables its remote control in real time over an IP-based network. The details of both hardware and software components of proposed implementation are provided. The DAB converter gives a possibility to control and manage the energy between two DC power systems with very different voltage levels. Not only information, but also the quality of energy, the direction of power flow, and energy storage systems can be easily controlled through an IP-based network and power electronics converters. Information technology, together with intelligent control of power electronics technology, provides a flexible solution, especially for sustainable smart grids.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 4; 887-896
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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