Search results for "composition"
showing 10 items of 2675 documents
Substrat jako fundament konwencjonalizacji wtórnej sielanki staropolskiej
2022
Artykuł pt. Substrat jako fundament konwencjonalizacji wtórnej staropolskiej sielanki jest analizą najważniejszej zasady tworzącej konwencję tego gatunku, a mianowicie reguły dwupłaszczyznowości kompozycyjnej. Autorka na przykładach utworów takich poetów, jak: Szymon Szymonowicz, Szymon Zimorowicz, Jan Gawiński, Samuel Twardowski czy Adrian Wieszczycki omawia etap kształtowania się konwencji gatunku sielankowego. Następnie ukazuje zależność pomiędzy zmianami w warunkach literackich i kulturowych oraz tych, które zaszły w percepcji czytelników, a ich wpływem na ewolucję ustalonej konwencji. Obserwowane zmiany w obrębie konwencji zostały opracowane w odniesieniu do koncepcji substratu gatunko…
L'interprete al cinema: stereotipi, pregiudizi e realtà
2020
The figure of the interpreter in history has always oscillated between visibility and invisibility. Although today there is a tendency to give it increasing recognition, some categories (cultural mediators, war and sign interpreters) still remain in a poorly recognized situation and often operate in precarious working conditions. The interpreter as a subject of study has been present in world literature for years. We will investigate what has become the interpreter as a subject in world cinema. What is the semiotic process for which a given image of the interpreter communicates a certain cliché or suggests certain characteristics that the director (or the screenwriter) wanted to highlight. …
The role of lexical aspect in constructing Proto-Indo-European verbal paradigms
2009
The aim of this paper is to recover the role of the [± telic] inherent feature of PIE verbal roots, regardless of the many different meanings which derived verbs could take depending on their combination with arguments, adverbials, and so on. Semantic changes due to different contexts could have indeed obscured the relationship between the original lexical aspect of a verb and the structure of its morphological paradigm. The aspectual class is often described as a compositional property, and verbs are even analyzed as complex structures made up of completely neutral roots without any information about their argument structure. However, the distribution and the kind of forms within the parad…
Body Composition, Energy Availability, Training, and Menstrual Status in Female Runners.
2020
Purpose: To determine body composition, energy availability, training load, and menstrual status in young elite endurance running athletes (ATH) over 1 year, and in a secondary analysis, to investigate how these factors differ between nonrunning controls (CON), and amenorrheic (AME) and eumenorrheic (EUM) ATH. Correlations to injury, illness, and performance were also examined. Methods: Altogether 13 ATH and 8 CON completed the Low Energy Availability in Females Questionnaire. Anthropometric, energy intake, and peak oxygen uptake assessments were made at 4 time points throughout the year: at baseline post competition season, post general preparation, post specific preparation, and post comp…
2017
Abstract. Proteins can be nitrated by air pollutants (NO2), enhancing their allergenic potential. This work provides insight into protein nitration and subsequent decomposition in the presence of solar radiation. We also investigated light-induced formation of nitrous acid (HONO) from protein surfaces that were nitrated either online with instantaneous gas-phase exposure to NO2 or offline by an efficient nitration agent (tetranitromethane, TNM). Bovine serum albumin (BSA) and ovalbumin (OVA) were used as model substances for proteins. Nitration degrees of about 1 % were derived applying NO2 concentrations of 100 ppb under VIS∕UV illuminated conditions, while simultaneous decomposition of (n…
Fe and Zn co-substituted beta-tricalcium phosphate (β-TCP): Synthesis, structural, magnetic, mechanical and biological properties
2020
This work was supported by the European Social Fund under the No. 09.3.3- LMT-K-712 “Development of Competences of Scientists, other Researchers and Students through Practical Research Activities” measure. AK would like to express sincere gratitude for Fellowship administrated by The Japan Society for the Promotion of Science (JSPS). Fellow’s ID No.: L12546. Authors are grateful to R. Vargalis (Vilnius University) for taking SEM images. © 2020. This work is licensed under a CC BY-NC-ND license.
Ni@Fe2O3 heterodimers: controlled synthesis and magnetically recyclable catalytic application for dehalogenation reactions
2012
Ni@Fe2O3 heterodimer nanoparticles (NPs) were synthesized by thermal decomposition of organometallic reactants. After functionalization, these Ni@Fe2O3 heterodimers became water soluble. The pristine heterodimeric NPs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Mossbauer spectroscopy and magnetic susceptibility measurements. A special advantage of the heterodimers lies in the fact that nanodomains of different composition can be used as catalysts for the removal of environmentally hazardous halogenated pollutants.
Properties and significance of apoFNR as a second form of air-inactivated [4Fe-4S]·FNR of Escherichia coli
2005
The active form of the oxygen sensor fumarate nitrate reductase regulator (FNR) of Escherichia coli contains a [4Fe-4S] cluster which is converted to a [2Fe-2S] cluster after reaction with air, resulting in inactivation of FNR. Reaction of reconstituted [4Fe-4S].FNR with air resulted within 5 min in conversion to apoFNR. The rate was comparable to the rate known for [4Fe-4S].FNR/[2Fe-2S].FNR cluster conversion, suggesting that apoFNR is a product of [2Fe-2S].FNR decomposition and a final form of air-inactivated FNR in vitro. Formation of apoFNR and the redox state of the cysteinyl residues were determined in vitro by alkylation. FNR contains five cysteinyl residues, four of which (Cys20, Cy…
AlTf-UVM-7—Highly active catalysts for the synthesis of long chain symmetrical ethers and non-ionic surfactant structures
2010
New Lewis acid AlTf-UVM-7 catalysts with bimodal pore system and different Si to Al ratios were prepared in a two-step synthesis in which triflic acid (Tf) was incorporated into previously synthesized mesoporous aluminum-containing silica. The Al incorporation inside the pore walls was carried out through the Atrane method. The characterization of the resulted catalysts showed that the triflic acid treatment step did not damage the texture or the structure of the catalysts. These materials were used as green catalysts for the etherification of fatty alcohols and the conversion of ethylene glycol (EG) with n-octanol resulting in mixtures of short ethoxylated structures with a large distribut…
The enrichment ratio of atomic contacts in crystals, an indicator derived from the Hirshfeld surface analysis
2014
An enrichment ratio is derived from the decomposition of the crystal contact surface between pairs of interacting chemical species. The propensity of different contact types to form is investigated.