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THE INTERPLAY OF SENTENCE ACCENT AND CONCEPTUAL METAPHOR
No full textThe aim of the present paper is to point to some issues in cognitive linguistic theory
where phonological research can make a contribution. Our spoken data includes a sample of
3283 words divided over ten recordings (24min 25s). By analyzing the intonational properties of
speech produced by female native speakers of Serbian, we seek to understand the activation of
metaphor in thought (see MÜLLER, TAG 2010). We first identify the potentially metaphorical
expressions, and then determine which of these could be considered as accentuated verbal metaphoric expressions based on the prosodic stress. Although the analysis does seem to point to a
particular degree of foregrounding of metaphorical content by means of intonation units, accentuated verbal metaphoric expressions constituted 37,40% of the linguistic expressions in our datahttp://www.philologiamediana.com/index.php/phm/article/view/924/772Publishe
EMBRACING TECHNOLOGY IN DISTANCE MATHEMATICS EDUCATION: INVESTIGATING STUDENTS' PERCEPTIONS OF THE TEACHERS’ USAGE OF THE PEN TABLET
Full text linkThe inability to directly communicate mathematical content through various representations of concepts
resented a significant challenge after the shift from face to-face teaching to distance mathematics education in Serbia. Some mathematics teachers attempted to overcome this gap by using a pen tablet during mathematics
classes. The aim of this research is to determine the attitudes of upper-grade elementary and high school students about whether the meaningful use of a pen tablet by teachers contributes to the quality of distance mathematics education. The examined sample included 202 students from upper elementary and high school. The research results indicate that students are indeed aware of the benefits of teachers using a pen tablet to achieve learning outcomes. In most specific statements, there are no significant differences in the attitudes of elementary and high school students, as well as differences in attitudes in relation to gender. Specifically, girls, to a greater extent than boys, agree with the statement that the use of a pen tablet helped them better understand the teaching and learning contents, as well as that there are more benefits to using a pen tablet in classes that cover arithmetic (algebra) topics. On the other hand, high school students, to a greater extent than elementary school students, perceive the use of a pen tablet in math classes as more effective and consider it more helpful during learning in mathematics classes.http://research.rs/wp-content/uploads/2024/06/2217-7337_v14_n01_p028.pdfPublishe
ANTIMICROBIAL ACTIVITY OF HYBRIDS OF COUMARIN’S DERIVATIVES WITH NEUROTRANSMITTERS 20242ND INTERNATIONAL SYMPOSIUM ON BIOTECHNOLOGY (2024)ЗБОРНИЦИ
No full textIn this study, the antimicrobial activity of five hybrids of 3-acetyl-4-hydroxy coumarin with neurotransmitters was determined: dopamine (1), tyramine (2), octopamine (3), norepinephrine (4) and methoxy-tyramine (5). Antimicrobial activity was assessed using the microdilution method incorporating resazurin, with determination of MIC/MMC concentrations. Testing involved twelve microorganisms, five of which were sourced from mine wastewater. The best activities were shown by substances (1) and (4) on Bacillus pumilus and Pantoea agglomerans, where the MIC was 31.8 μg/mL. Pantoea agglomerans showed the highest sensitivity to all tested substances, except (5). Tested substances didn't show activity on standard strains of bacteria and yeast. In general, substances act above the range of positive controls and have selective and limited activity.Publishe
Biological Activities of Chamaecyparis lawsoniana (A.Murray bis) Parl. and Thuja plicata Donn ex D.Don Essential Oils: Toxicity, Genotoxicity, Antigenotoxicity, and Antimicrobial Activity
Full text linkEssential oils (EOs) derived from evergreen conifer trees are recognized as complex sources of agents with various biological activities. In this study, the biological activities of the EOs derived from Chamaecyparis lawsoniana (A.Murray bis) Parl. (CLEO) and Thuja plicata Donn ex D.Don (TPEO) were investigated. The third instar larvae of the fruit fly Drosophila melanogaster were used as a model organism to determine the in vivo toxicity, genotoxicity, and antigenotoxicity of five different concentrations of CLEO and TPEO, ranging from 0.19% to 3%. Artemia salina was used for acute toxicity assessment and determination of LC50 after 24 h and 48 h. The antimicrobial activity
of the CLEO and TPEO was tested against fourteen bacterial and two fungal strains using the microdilution method. The larvicidal activity and developmental time of D. melanogaster increased as the concentrations of the EOs rose. CLEO and TPEO produced a dose-dependent increase in DNA damage compared with the negative control. Both oils, at concentrations up to 1.5%, demonstrated the ability to reduce the genotoxic effect induced by ethyl methanesulfonate, with a reduction rate exceeding 60%. CLEO and TPEO were highly toxic against Artemia salina nauplii. The results indicate that the tested EOs act as antimicrobial agents against some pathogenic bacteria and fungi. CLEO and TPEO show promising potential as a source of antimicrobial and antigenotoxic agents and as potential biocides against pest insects and arthropods.Publishe
BEING INBETWEEN: THE LYRICAL SUBJECT AND WHITENESS IN THE POETRY COLLECTION THE INJURY OF WHITENESS BY BOJANA STOJANOVIĆ PANTOVIĆ
No full textThis paper intends to present the autopoetic placesof the collection The injury
of whiteness by Bojana Stojanović Pantović, but also to point out what kind of injuries
and whitenesses they really are. The specific position of the poet will be taken into
consideration, which is determined by the limiting condition in which the genesis of
poetry is characterized as „a stopped river flow that cannot reach its estuary”. We will
analyze the views of the author on the selected corpus, but we will also shed light on
the key starting points of her poetic creation. At that point, we asked ourselves if it was
anxiety, the desire to step out of a state of ease and to meet the knowledge of that Self
that appears when the whiteness is injured. Also, an important topic of this work is the
consideration of the position of the lyrical subject, which is the position in between
that allows all opposites to be reconciled, to melt and flow fluidly through the song,
manifesting itself through physiological processes, impressions caused by everyday
life, sensory sensations, and even internal ones, thought and emotional actions. All this
represents a new way to write and think poetry, to move events from the horizon of the
expected and thus make a shift in relation to what is already known10.18485/sfi.2024.1.ch22Publishe
THE EFFECTS OF CHRONIC ADMINISTRATION OF ALLIUM URSINUM EXTRACT ON SYSTEMIC REDOX STATUS IN RATS
Full text linkThe present study aimed to estimate the effects of chronic treatment with Allium ursinum extract on the redox status in rats. The administration of extract in a dose of 500 mg/kg significantly reduced the concentration of all tested pro-oxidative markers compared to the control group. Additionally, the application of extract caused a significant elevation in the antioxidant activity compared to the control group. Our results have shown that the four-week intake of the methanolic Allium ursinum extract significantly modulates the redox status and stands out as a powerful antioxidant.Publishe
Potentially toxic elements in pikeperch (Sander lucioperca L.) from the Gruza Reservoir: Health risk assessment related to fish consumption by the general population and fishermen
No full textThe aim was to evaluate concentrations of 14 potentially toxic elements in three tissues (muscle, liver, and gills) of pikeperch (Sander lucioperca) and to assess health risk (the potential non-cancerogenic - Total target hazard quotient (TTHQ) and cancerogenic - Target carcinogenic risk factor (TR) health risk associated with the consumption of pikeperch from the Gruža Reservoir by the general population and fishermen. A value of Fulton’s condition factor (CF) of less than one in our study indicated the poor general health of pikeperch. According to metal pollution index (MPI), the liver was exposed to the highest pressure of metal pollution. Levels of elements were lower than the national levels and international threshold levels, and suggested a very likely absence of risk of contamination of fish with elements in the Gruža Reservoir. Higher TTHQ was observed for fishermen (0.25) compared to the general population (0.20). Higher value of TR for As compared to TR for Pb was detected, both for the general population and for fishermen. In general, there was no risk to human health from pikeperch consumption, but fishermen were at slightly higher health risk to develop cancer if they consume pikeperch meat compared to the general population.https://enauka.gov.rs/handle/123456789/906271Publishe
Theoretical and experimental investigation of the glass tube solar collector with inclined N-S axis and relative E-W single-axis tracking flat absorber
No full textThis paper presents a new solar collector design that combines flat absorber plates and glass tubes with a compacted automatic time-controlled (E–W) single-axis tracking mechanism. The mentioned design incorporates the advantages of the single-axis tracking system with a relatively small increase in the solar collector dimensions. According to it, a mathematical model was formed, and the test sample was fabricated. Using a bespoke test rig, the experimental investigation was carried out by simultaneously measuring the thermal performances of the solar collector in question and the flat plate solar collector with the same inclined position and absorber material. The experimental results (from July 15 to October 15, 2021) showed that compared to a reference collector, the new solar collector’s average daily specific useful heat was higher in the range of 14–23%, and the overall thermal efficiency was higher in the range of 9.7–17.9%. Using the obtained experimental and simulation data, the mathematical model was verified within an average deviation of 5.67%. Despite the partial reduction of the useful heat due to the mutual shading of absorbers, the mentioned solar collector shows promising results along with a compact design. We propose that this device will present promising opportunities in future applications
Slow tourism as a contemporary tendency in the tourism market: image content and geotag analysis on Instagram
Full text linkAlthough it originated from the Slow Food and Cittaslow
movements, slow tourism has spread to many spheres of
tourism. The purpose of the paper is to investigate what
people associate with slow tourism, and how and where
they engage in slow tourism. Social media content analysis
on Instagram, using hashtag #slowtourism, was performed
in the research. The general conclusion is that people mostly
associate slow tourism with different forms of architecture
and landscape, and to lesser extent with transport and
food. Also, there was significant content variation within
the architecture and landscape categories, suggesting that
people associate different types of architecture and tourism
destinations with slow tourism. When it comes to location,
the majority of photos were taken in Italy, which is not
surprising, considering that Slow Food and Cittaslow
movements originated in this country.Publishe
COBALT FERTILIZATION IN ORDER TO PROMOTE NITROGEN FIXATION IN ANNUAL FORAGE LEGUMES
Full text linkThe work aimed was to analyze the importance and possibilities of using cobalt for fertilizing annual forage legumes. Cobalt in small concentrations in the soil has a positive effect on the processes of nodulation and symbiotic nitrogen fixation. Therefore, its addition as fertilizer, especially on acidic soils, has a positive effect on the growth, yield, and quality of leguminous plants. Optimum concentrations of cobalt in the soil solution vary depending on the plant species and range from 8 to 50 ppm. Higher concentrations of cobalt in most annual forage legumes result in a toxic effect.Publishe