2,754 research outputs found

    The Relationship Between Ethics and Literature in Light of Levinas’s Work

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    In my paper I intend to uncover the relationship between ethics and literature. The aforementioned issue is connected to ’ethical turn’ — new orientation in literary studies, which was introduced in the nineties of 20th century. In order to uncover its source of inspiration, I refer to Lévinas’s works, such as Reality and its Shadow, The poet’s vision, Totality and Infinity, Otherwise than Being. I advocate the view that not only Lévinas’s concept of language, but also his account of poetry and responsibility underlie ethical criticism. Therefore, they are regarded as crucial to understand this new approach to literary studies. To illustrate my thesis, I attempt to interpret literary works, i.e. Wordsworth’s and Coetzee’s in light of Lévinas’s concepts.Numer został przygotowany przy wsparciu Ministerstwa Nauki i Szkolnictwa Wyższego

    Development and validation of stability-indicating TLC-densitometric method for determination of betaxolol with LC-ESI/MS analysis of degradation product

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    The purpose of this work was to develop a sensitive stability indicating TLC-densitometric method for the determination of betaxolol (Bx) in pharmaceutical preparations and to study the stability of Bx in acidic solutions. The method was developed on TLC aluminium plates precoated with silica gel F254 using the mobile phase chloroform-methanol-ammonia 25% (18 : 4 : 0.2, v/v/v) which gives compact spots for Bx (Rf ≅ 0.64) and its degradation product (Rf ≅ 0.39). Densitometric analysis was carried out in UV at 280 nm. The developed method is highly sensitive (LOD = 66.6 ng/spot, LOQ = 200 ng/spot), precise (RSD = 2.73%) and accurate (mean recovery = 100.28% at 100% level). Bx was subjected to acidic and alkaline hydrolysis but degradation was observed only in acidic solutions. The degradation process was described with kinetic and thermodynamic parameters. Based on LC-ESI/MS analysis, it was found that Bx decomposes in acidic solution to produce ethoxyphenoxy-3-[(1-methylethyl)amino]propan-2-ol

    Badanie w działaniu w kształceniu i doskonaleniu nauczycieli

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    The aim of this text is to introduce the essence and arguments for the usefulness of action research as a research paradigm in the development and updating of teachers’ professionalism. Thus, I present the specific features of action research, its cognitive and practical potential in relation to everyday educational practice. I stress the importance of using researcherspractitionersown voices to express their concerns and opinions, and take new bold initiatives. Then I point out the cognitive interests which direct the action research on specific cognitivepurposes and changes assumed. Next, I present the possibilities of applying this research approach in the process of academic education of teacher candidates as well as the process of professional improvement of teachers- practitioners. In both cases, I use a few samples ofpractices to illustrate my point of view on this paradigm. As an example of the initial teacher education I present an experience of E. Wołodźko from her book Towards an autonomy of study (2013). In second case, I mention experiences of my PhD students – teachers -practitioners.Celem tego tekstu jest przedstawienie istoty i argumentów na rzecz użyteczności badania w  działaniu jako paradygmatu badawczego w zakresie rozwoju i aktualizowania nauczycielskiego profesjonalizmu. Przedstawiam jego specyfikę poprzez charakterystykę potencjału poznawczego i praktycznego w odniesieniu do codziennej praktyki edukacyjnej. Podkreślam znaczenie wykorzystania przez badaczy - praktyków ich własnego głosu w wyrażaniu swoich obaw i opinii oraz poprzez odważne podejmowanie nowych śmiałych inicjatyw. Następnie wskazuję interesy poznawcze, które orientują badanie w działaniu na określone cele poznawcze i na zakładane zmiany. W dalszej kolejności przedstawiam możliwości stosowania tego podejścia, w procesie kształcenia kandydatów na nauczycieli, oraz w procesie doskonalenia zawodowego nauczycieli praktyków. Przytaczam kilka przykładów praktyk obrazujących obydwie  opcje w celu zilustrowania mojego punktu widzenia na potencjał tego paradygmatu. Jako przykład w kształceniu nauczycieli przedstawiłam doświadczenia E. Wołodźko z jej książki „W kierunku autonomii studiowania” (2013 r.) . W drugim przypadku przywołuję doświadczenia moich doktorantów - nauczycieli-praktyków

    Microbiological Hazards Associated with Archaeological Works, Illustrated with an Example of Fredro Crypt (Przemyśl, Poland)

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    The human remains and other materials found in crypts can be highly contaminated with microorganisms. Archaeologists are exposed to microorganisms in many ways (e.g by inhaling dust, contaminating scratches or cuts). We aimed at evaluating microbial hazards associated with human remains and bioaerosols formed during archaeological works in burial crypts. The samples of the human remains, bioaerosols and personal protective equipment (dust respirators, disposable coveralls) were collected during archaeological works in the vault of the Cathedral Basilica of St. John the Baptist and the Assumption of the Blessed Virgin Mary in Przemyśl (Fredro crypt). The microbiological examination involved determining the number of spores of aerobic and anaerobic bacteria, the number of mesophilic and hemolytic bacteria, and the number of xerophilic, non- xerophilic and keratinolytic fungi. The air as well as objects and materials found in crypts are highly contaminated with bacteria and fungi. The xerophilic fungi were the most numerous in all samples of human remains 1–230·103 cfu(colony forming units/g). The non-xerophilic fungi were predominant in bioaerosols (>104 cfu/m3 during archaeological works). The majority of bacterial strains (81.3%) belonged to the genus Bacillus. Fungi belonging to the genera Penicillium (65.2%) and Aspergillus (28.6%) dominated among the isolated fungi. Fogging sterilization of the crypt turned out to be ineffective. The high number of microorganisms both in the air and on human remains indicates that there is a need for particular caution during archaeological works which cause dust emission. In order to reduce exposure to harmful biological factors, the use of disposable personal protective equipment seems necessary

    Microbiological Hazards Associated with Archaeological Works, Illustrated with an Example of Fredro Crypt (Przemyśl, Poland)

    Get PDF
    The human remains and other materials found in crypts can be highly contaminated with microorganisms. Archaeologists are exposed to microorganisms in many ways (e.g by inhaling dust, contaminating scratches or cuts). We aimed at evaluating microbial hazards associated with human remains and bioaerosols formed during archaeological works in burial crypts. The samples of the human remains, bioaerosols and personal protective equipment (dust respirators, disposable coveralls) were collected during archaeological works in the vault of the Cathedral Basilica of St. John the Baptist and the Assumption of the Blessed Virgin Mary in Przemyśl (Fredro crypt). The microbiological examination involved determining the number of spores of aerobic and anaerobic bacteria, the number of mesophilic and hemolytic bacteria, and the number of xerophilic, non- xerophilic and keratinolytic fungi. The air as well as objects and materials found in crypts are highly contaminated with bacteria and fungi. The xerophilic fungi were the most numerous in all samples of human remains 1–230·103 cfu(colony forming units/g). The non-xerophilic fungi were predominant in bioaerosols (>104 cfu/m3 during archaeological works). The majority of bacterial strains (81.3%) belonged to the genus Bacillus. Fungi belonging to the genera Penicillium (65.2%) and Aspergillus (28.6%) dominated among the isolated fungi. Fogging sterilization of the crypt turned out to be ineffective. The high number of microorganisms both in the air and on human remains indicates that there is a need for particular caution during archaeological works which cause dust emission. In order to reduce exposure to harmful biological factors, the use of disposable personal protective equipment seems necessary

    Audiodeskrypcja na lekcji historii, biologii i fizyki w klasie uczniów z dysfunkcją wzroku

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    Audio Description in History, Biology and Physics Classes for Visually Impaired Learners The aim of this paper is to present the results of a research study on the possibility of using audio description (AD) as an additional didactic tool in the education of the blind and partially sighted children. More specifi cally, the study meant to investigate whether and, if so, to what extent adding AD enhances the comprehension of educational fi lms among children and what the possible value of AD in educational settings could be. In addition, the underlying objective of the study was to raise the awareness among teachers about the importance of AD as a means to achieve audiovisual accessibility. The filmic material employed for the purposes of the study consisted of three episodes from the educational animation series Once Upon a Time..., namely Once Upon a Time... Man (episode America), Once Upon a Time… Life (episode Blood) and Once Upon a Time… Discoverers (episode Newton). A total of 55 children participated in the study. After each screening, the children were invited to take part in a quiz competition, whose aim was to test their level of comprehension of the shown fi lm. To gather children’s responses, the researchers employed innovative clicker devices and supporting software from InterWrite PRS. Both the screenings and the questionnaires with clickers were greeted with much enthusiasm by children and they arouse interest and curiosity also among teachers. The study revealed that AD in educational fi lms helps to develop and retain specialised vocabulary. Moreover, it helps the children to follow the fi lm, thus improving its overall comprehension. It is the researchers’ assumption that AD, through its use of varied word choice, synonyms, metaphors and similes, can boost literacy of the blind and partially sighted children. Finally, a conclusion can be drawn that fi lms with AD could not only complement lessons, but also make them more enjoyable

    Kinetic and thermodynamic studies of moxifloxacin hydrolysis in the presence and absence of metal ions in acidic solutions

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    Chromatographic and densitometric method for determination of moxifloxacin in the presence of products of acidic hydrolysis was developed. The established method had suitable specificity, precision, good accuracy, and high sensitivity. In addition, stability of moxifloxacin in acidic solutions at temperature 90OC and 110OC in the presence and absence of metal ions, such as Cu(II), Fe(III), Zn(II), and Al(III) was studied. It was proved that decomposition of moxifloxacin proceeds according to kinetics of the first-order reaction and is dependent on temperature, incubation time and the type of the metal ion. Based on the calculated kinetic (k, t0.1 and t0.5) and thermodynamic (Ea) parameters, it was observed that among studied ions the highest effect on decomposition process of moxifloxacin had Cu(II) ions. The liquid chromatography coupled with mass spectrometry detection (LC-MS) and proton nuclear magnetic resonance (1H NMR) techniques have been used to identify degradation products for the compound

    Kinetic and thermodynamic studies of moxifloxacin hydrolysis in the presence and absence of metal ions in acidic solutions

    Get PDF
    Chromatographic and densitometric method for determination of moxifloxacin in the presence of products of acidic hydrolysis was developed. The established method had suitable specificity, precision, good accuracy and high sensitivity.In addition, stability of moxifloxacin in acidic solutions at temperature 90°C and 110°C in the presence and absence of metal ions, such as Cu(II), Fe(III), Zn(II), and Al(III) was studied. It was proved that decomposition of moxifloxacin proceeds according to kinetics of the first-order reaction and is dependent on temperature, incubation time and the type of the metal ion. Based on the calculated kinetic (k, t0.1 and t0.5) and thermodynamic (Ea) parameters, it was observed that among studied ions the highest effect on decomposition process of moxifloxacin had Cu(II) ions. The liquid chromatography coupled with mass spectrometry detection (LC-MS) and proton nuclear magnetic resonance (1H NMR) techniques have been used to identify degradation products of moxifloxacin

    Rewitalizacja miast - w kierunku integracji procesów, mechanizmów i metod działania

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    Projekt okładki: Walczak, Bartosz M
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