124 research outputs found
The effect of music background on the emotional appraisal of film sequences
In this study the effects of musical background on the emotional appraisal of film sequences was investigated. Four pairs of polar emotions defined in Plutchik’s model were used as basic emotional qualities: joy-sadness, anticipation-surprise, fear-anger, and trust disgust. In the preliminary study eight film sequences and eight music themes were selected as the best representatives of all eight Plutchik’s emotions. In the main experiment the participant judged the emotional qualities of film-music combinations on eight seven-point scales. Half of the combinations were congruent (e.g. joyful film - joyful music), and half were incongruent (e.g. joyful film - sad music). Results have shown that visual information (film) had greater effects on the emotion appraisal than auditory information (music). The modulation effects of music background depend on emotional qualities. In some incongruent combinations (joysadness) the modulations in the expected directions were obtained (e.g. joyful music reduces the sadness of a sad film), in some cases (anger-fear) no modulation effects were obtained, and in some cases (trust-disgust, anticipation-surprise) the modulation effects were in an unexpected direction (e.g. trustful music increased the appraisal of disgust of a disgusting film). These results suggest that the appraisals of conjoint effects of emotions depend on the medium (film masks the music) and emotional quality (three types of modulation effects)
The effect of music background on the emotional appraisal of film sequences
In this study the effects of musical background on the emotional appraisal of film sequences was investigated. Four pairs of polar emotions defined in Plutchik's model were used as basic emotional qualities: joy-sadness, anticipation-surprise, fear-anger, and trust disgust. In the preliminary study eight film sequences and eight music themes were selected as the best representatives of all eight Plutchik's emotions. In the main experiment the participant judged the emotional qualities of film-music combinations on eight seven-point scales. Half of the combinations were congruent (e.g. joyful film - joyful music), and half were incongruent (e.g. joyful film - sad music). Results have shown that visual information (film) had greater effects on the emotion appraisal than auditory information (music). The modulation effects of music background depend on emotional qualities. In some incongruent combinations (joysadness) the modulations in the expected directions were obtained (e.g. joyful music reduces the sadness of a sad film), in some cases (anger-fear) no modulation effects were obtained, and in some cases (trust-disgust, anticipation-surprise) the modulation effects were in an unexpected direction (e.g. trustful music increased the appraisal of disgust of a disgusting film). These results suggest that the appraisals of conjoint effects of emotions depend on the medium (film masks the music) and emotional quality (three types of modulation effects)
STATISTICAL AND NUMERICAL ANALYSIS OF TRANSFORMER OIL AC BREAKDOWN
Transformer oil AC breakdown research is an important part of transformer insulation design.
Research presented in this paper consists of statistical and numerical analysis of breakdown data
measured in portable oil tester. Statistical analysis is done by modeling measured data as a random process
with Gaussian and Weibull probability function. Numerical analysis uses statistical data for calculation of
stressed oil volume, stressed electrode area and safety factors of “cumulative stress” method. Both
statistical and numerical analysis showed how breakdown withstand depends on different variables and
why they are important in measurement interpretation
SEKSUALNO ZLOSTAVLJANJE I ISKORIŠTAVANJE DJECE (NOVINE U KRIVIČNOM ZAKONIKU REPUBLIKE SRPSKE)
Krivičnim zakonikom Republike Srpske izvršene su značajneizmjene u sistemu krivičnopravne zaštite polnog integriteta djece. Podignutaje dobna granica do koje je apsolutno zabranjeno vršenje obljube ili s njomizjednačene polne radnje sa djetetom, uvedena su nova krivična djela kojimasu inkriminisane radnje koje su do sada bile izvan zone kažnjivosti, predviđenesu veće mjere kazne za pojedine oblike krivičnih djela, a izvršene su određeneizmjene i u opštem dijelu Krivičnog zakonika kojima se takođe doprinosipojačanoj zaštiti polnog integriteta djece. Pored toga, sva krivična djela kojimase ugrožava ili povrjeđuje polni integritet djece sistematizovana su u posebnugrupu krivičnih djela u glavi XV, tj. Krivična djela seksualnog zlostavljanja iiskorištavanja djeteta, čime se naglašava značaj dobra koje se štiti. Navedeneizmjene su predmet razmatranja u ovom radu, pri čemu autorka obrazlaže irazloge za njihovo uvođenje u krivičnopravni sistem
Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite
In recent years the nanocomposites of graphene oxide (GO) and different inorganic and organic compounds have shown great potential for charge storage applications. In present work we have investigated the influence of 12-tungstophosphoric acid (WPA) on surface chemistry of graphene oxide and thermal stability of nanocomposite. For this purpose nanocomposites with different mass ratios of GO and WPA were prepared. The thermal stability of nanocomposites was investigated by thermogravimetric and differential thermal analysis (TGA-DTA) while changes in surface chemistry of GO and structural properties of WPA were investigated by Fourier transform infrared spectroscopy (FTIR) and temperature programmed desorption (TPD) method. The TGA-DTA measurements of composites have shown that the major mass loss, due to carbon combustion, is shifted to higher temperatures (~500 °C vs. 380 °C of pure GO). Furthermore, when the amount of WPA is higher than 25 mass percent the nanocomposites start to act like individual components, which was also confirmed by FTIR analysis. The amount of surface oxygen groups, monitored by both TPD and FTIR methods, showed ˝V˝ shaped dependence from the quantity of WPA with minimum at about 12 mass percent of WPA. At the same time, the FTIR spectra revealed the structural changes of WPA, displayed as shifting and splitting of characteristic bands of Keggin anion structure
Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite
The rich surface chemistry and large surface area of graphene oxide (GO) provide a platform for various functional materials that synergistically enhance charge storage properties of the composite. In present work we have investigated interaction between GO and 12- thungstophosphoric acid (WPA) in their nanocomposites as a function of different mass ratio of constituents. For this purpose, the Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometry (XPS), temperature programmed desorption method (TPD) and thermogravimetric/differential thermal analysis (TGA-DTA) methods were used. FTIR spectra have shown shifts and splitting of characteristic bands of WPA as a result of interactions with GO. Both XPS and TPD methods have shown an initial decrease of the total amount of surface oxygen groups of GO, with a minimum at around 10 wt.% of WPA, above which a restoration of the amount of surface oxygen groups was noticed. TGA-DTA analysis revealed an improved thermal stability of the material up to 25 wt.% of WPA; at higher loading of WPA the thermal properties of nanocomposite became alike to the ones of individual components. The obtained results suggest optimal conditions for preparation of GO-WPA nanocomposites for electrochemical charge storage applications
Supplementary data for article: Misirlić Denčić, S.; Poljarević, J.; Isakovic, A. M.; Marković, I.; Sabo, T. J.; Grgurić-Šipka, S. Antileukemic Action of Novel Diamine Pt(II) Halogenido Complexes: Comparison of the Representative Novel Pt(II) with Corresponding Pt(IV) Complex. Chemical Biology and Drug Design 2017, 90 (2), 262–271. https://doi.org/10.1111/cbdd.12945
Supporting information for: [https://doi.org/10.1111/cbdd.12945]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2483]Related to accepted version: [http://cherry.chem.bg.ac.rs/handle/123456789/3120
KAPPA FREE LIGHT CHAINS IN CEREBROSPINAL FLUID OF PATIENTS WITH IDENTIFIED OLIGOCLONAL IMMUNOGLOBULIN G
Background: Production of kappa free light chains (KFLC) represents a part of humoral immune response, along with the
synthesis of intrathecal immunoglobulins. Increased concentrations of immunoglobulin G light chains, kappa and lambda chains,
were identified through research of numerous diseases of central nervous system. The qualitative method of isoelectric focusing
(IEF) followed by immunofixation currently represents the accepted standard in identifying oligoclonal bands (OCB), but
establishing a sensitive immunonephelometric method for quantification of kappa free light chains (KFLC) in cerebrospinal fluid
(CSF) has paved a way for new diagnostic possibilities. Andersson classified the pattern types of OCB, ranging from type 1 to type 5, wherein types 2 and 3 indicate intrathecal synthesis. Our aim was to determine KFLC in CSF of patients with clinically isolated syndrome (CIS) who had presented with type 2 and type 3 OCB, to determine if there is a difference in concentrations between those two groups and to establish a borderline value of KFLC which would enable differential diagnostics.
Subjects and methods: 70 patients, who underwent lumbar punction for CSF analysis and had their blood sampled through the
cubital vein, participated in the study. Patients were classified according to Andersson as type 2 or type 3, which besides adulthood, represented the inclusion criteria. The average age of patients classified as type 2 was 36 years, and those classified as type 3 was 39 years, where it is evident that there was not a statistically significant difference (p=0.0685). We used a qualitative electrophoretic technique of IEF with agarose gel followed by immunofixation, and a quantitative immunonephelometric method. All results were interpreted on a level of statistic significance of p<0.05.
Results: CSF KFLC concentrations in type 3 were statistically and significantly elevated with regard to type 2 (Mann-Whitney
test, p=0.0430). The median for KFLC in type 2 was 0.9 mg/L, while the median for KFLC in type 3 was 2.71 mg/L, and the detection limit for both types was 0.18 mg/L. We used a statistical ROC curve to determine that KFLC concentration can be used for differential diagnostics, meaning it can discriminate type 2 from type 3 with clinical sensitivity of 61% and clinical specificity of 71% (AUC=0.641) (p=0.037).
Conclusion: Despite the obtained statistically significant differences in concentrations of KFLC between types of OCBs and
ROC analysis results, determination of KFLC by a nephelometric method, insufficiently strong clinical sensitivity and specificity does not justify abandonment of IEF method followed by immunofixation
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