The Actual vs. Predicted Effects of Intonation Accuracy on Vocal Performance Quality

2015 ◽  
Vol 33 (2) ◽  
pp. 135-146 ◽  
Author(s):  
Richard A. Warren ◽  
Meagan E. Curtis

The belief that intonation accuracy is a key determinant of musical performance quality is ubiquitous in music pedagogy; nonetheless, empirical validation of this belief is lacking. We investigated the effects of intonation accuracy on perceived performance quality and assessed whether music professionals’ beliefs about the importance of intonation are consistent with these effects. In Experiments 1 and 2, participants listened to vocal performances that were in tune, moderately out of tune, or severely out of tune. Only severe mistunings caused decreases in performance quality ratings for intonation insensitive listeners (those who performed poorly on a mistuning detection prescreening). However, both moderate and severe mistunings were detrimental to the ratings of intonation sensitive listeners. These results indicate that moderate mistunings exert a negative influence on the perceived quality of a performance only if the listener can explicitly detect the mistunings. If a listener cannot explicitly detect the mistunings, those mistunings do not implicitly exert a negative influence on the perception of the performance. In Experiment 3, music professionals heard samples of performances from Experiments 1 and 2 in each intonation condition and were asked to estimate the impact of the mistunings on listeners’ ratings of performance quality. Their predictions were compared to the actual performance quality ratings obtained in Experiment 2. Music professionals overestimated the impact of moderate mistunings for both intonation sensitive and insensitive listeners, suggesting that music professionals may hold inaccurate beliefs about the importance of intonation accuracy in vocal performance.

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Zakiy

The studies revealed that organizational change could create employee’s psychological uncertainty. However, this study argues that the quality of leader-member exchange enables to control the impact of the psychological uncertainty during the change toward employee’s attitude. This study represents job satisfaction and turnover intention as proxy of employee’s attitude for that matter. Based on social exchange theory, quality relationship of leader and employees affects on the relationship of psychological uncertainty and employee’s job satisfaction and turnover intention. This study selected private hospitals experiencing the changes of operational system for complying with national health security system. This study conducted cross-section survey for individual level-analysis. This study produces some findings. Firstly, the LMX has been failed to reduce the negative influence of psychological uncertainty towards employee’s job satisfaction, although the quality of the LMX was good. employee’s job satisfaction is more perceived as  personal afective state experienced during the organizational change. Secondly, the LMX has been successfully moderated the positive influence of the psychological uncertainty towards employee’s turnover intention.The data were collected by using questioners, distributed to the employees who worked in hospitals in Yogyakarta Province. There were 193 questioners that could be collected and analyzed by using Moderated Regression Analysis (MRA) to test the hypothesis by using SPSS application version 21. The result of the study shows that psychological uncertainty had negative correlation to employee’s job satisfaction and positive influence to psychological uncertainty toward turnover intention. Besides, LMX was proven to moderate positive influence of psychological uncertainty toward turnover intention, but it could not moderate negative influence of psychological uncertainty toward job satisfaction. 


2019 ◽  
Vol 84 (5) ◽  
pp. 527-530
Author(s):  
Ivana Cipranic ◽  
Radmila Markovic ◽  
Stefan Djordjievski ◽  
Zoran Stevanovic ◽  
Marija Stevanovic

This paper presents the assessment of the impact of coal ash and slag from the ?Maljevac? dump on the quality of water of Paleski Creek, Montenegro. The obtained results confirm the negative influence of surface and groundwater from the dump on the water from the Paleski Creek. The results obtained by testing of the water samples, collected from Paleski Creek upstream of the dump, indicate that the water is qualified to be used for drinking, after simple physical treatment and disinfection. The results obtained for the water samples collected from the Paleski creek downstream from the dump indicate that the water could be safe for drinking only after the treatment that requires an intensive physical, chemical and biological processing, including some extended treatment.


2012 ◽  
Vol 37 (1) ◽  
pp. 103-108 ◽  
Author(s):  
PA Martins-Júnior ◽  
LS Marques ◽  
ML Ramos-Jorge ML

Objectives: To determine the association between types of malocclusion and quality of life in children between 8-10 years of age and establish correlations between the severity of the malocclusion and particular bio-psychosocial variables. Study design: The sample was made up of 102 schoolchildren aged 8-10 years. Clinical exams were performed using the criteria of the Dental Aesthetic Index (DAI) to determine the presence and severity of malocclusions. The impact on quality of life was assessed using the Child Perceptions Questionnaire (CPQ8-10). Statistical analysis involved the chi-square test, Fisher's exact test and Spearman's correlation analysis. Results: Malocclusions affected 61% of the children examined. There was a positive correlation between total CPQ8-10 and DAI scores (P = 0.034). The following types of malocclusion had a significant effect on the quality of life of the children: upper anterior irregularity ≥ 2 mm, anterior open bite ≥ 2mm and diastema ≥ 2mm. Children with malocclusion experienced a greater negative impact on quality of life in comparison to those without malocclusion. Conclusions: Malocclusions had a negative influence over the quality of life of children between 8-10 years of age. More severe malocclusions had a greater impact with regard to social, emotional and functional aspects.


2010 ◽  
Vol 63 (1-2) ◽  
pp. 113-116 ◽  
Author(s):  
Olivera Zikic ◽  
Suzana Tosic-Golubovic ◽  
Violeta Slavkovic

Introduction. Quality of life has gained increasing attention as an important component of functional outcome in mood disorders. The aim of our study was to investigate the relationship between unipolar depression and quality of life. Material and methods. The group consisted of 84 patients with unipolar depression (depressive episode or recurrent depression, without psychotic presentation) and 30 healthy controls. We applied socio demographic questionnaire, World Health Organization Quality of Life-Brief and The Patient Health Questionnaire - 9. Results. The impact of unipolar depression on quality of life was significant. The patients had significantly lower scores in all 4 domains of quality of life (Physical health, Psychological health, Social relations, Environment) compared with healthy controls. The biggest influence was on physical (43.71 vs. 76.67) and psychological (36.01 vs. 65.83) domains. The quality of life decreased with the increase of severity of depressive episode and duration of current episode, as well as with incidence of depressive episodes. The absence of emotional relationship had also a very negative influence. There were no differences in quality of life between male and female depressive patients. The level of education had an impact on physical and psychological domain. Discussion. Generally, the quality of life in unipolar depression is very modest. One of the reasons for such influence could be the main pathological factor in depression - negative view of self world and future. Beside that, the reason could be significant psychological suffering and decreased function in depression. Conclusion. Unipolar depression has negative influence on quality of life.


2018 ◽  
Vol 71 (4) ◽  
Author(s):  
Halina Lipińska ◽  
Wanda Harkot ◽  
Zbigniew Czarnecki ◽  
Rafał Kornas ◽  
Ewa Stamirowska-Krzaczek ◽  
...  

<p>The aim of the study was to assess the impact of cut vegetative shoots of chosen lawn grass cultivars of <em>Festuca</em> being left on the lawn sward surface on the species composition, sodding and appearance, and over-wintering of the lawn. The influence of decomposing biomass was studied in a field experiment between 2008 and 2014. Each cultivar was sown as a monoculture on microplots with an area of 1 m<sup>2</sup>. The control consisted of sites from which the cut sward had been removed immediately after cutting.</p><p>The results obtained may indicate an allelopathic effect of the cut sward of the cultivars left on the lawn surfaces. The following had the most negative effects on the species composition of the lawn sward (from greater to lesser negative impact): <em>F. ovina</em> ‘Espro’, <em>F. rubra</em> ‘Areta’, <em>F. arundinacea</em> ‘Asterix’, and <em>F. ovina</em> ‘Pintor’. With the exception of ‘Espro’, these cultivars also limited the presence of dicotyledonous plants in the lawn sward. The cover of dicotyledonous plants and other unsown grasses was also recorded on the sites with <em>F. rubra</em> ‘Olivia’ and ‘Nimba’. The greatest negative influence on the sodding of the lawn swards was demonstrated by the latter <em>F. rubra</em> cultivar, whereas <em>F. ovina</em> ‘Espro’ had the greatest negative influence on the appearance. However, no differences were found in assessments of over-wintering of the cultivars at the study sites. However, taking into account the scale of these impacts on the characteristics evaluated, the cultivars of <em>Festuca</em> species tested can be recommended for extensive use, where a cut sward can be left on the surface of the lawn. Some caution in this respect is recommended when it comes to <em>F. ovina</em> ‘Espro’ and <em>F. rubra</em> ‘Areta’ and ‘Nimba’.</p>


2021 ◽  
Vol 2021 (2) ◽  
pp. 229-241
Author(s):  
Vera L. LUKICHEVA ◽  
◽  
Andrey A. PRIVALOV ◽  
Daniil D. TITOV ◽  
◽  
...  

Objective: To analyze the impact of computer attacks on the performance quality of data transmission channels and channeling systems. It is also necessary to take into account the capabilities of an intruder to introduce malware into channeling systems when committing a computer attack. Methods: To determine the required design ratios, several options for setting various distribution functions characterizing the parameters used as input data and types of inbound streams have been considered, taking into account the parameters of the intruder’s computer attack model set by the values of the probability of successful attack. Mathematical modeling is carried out using the method of topological transformation of stochastic networks. The exponential, momentum and gamma distributions are considered as distribution functions of random variables. The solutions are presented for inbound streams corresponding to the Poisson, Weibull, and Pareto models. Results: The proposed approach makes it possible to assess the performance quality of data transmission channels in the context of computer attacks. These assessments make it possible to analyze the state and develop guidelines for improving the performance quality of communication channels against the destructive information impact of the intruder. Various variants of the functions of random variables distribution and various types of the inbound stream were used for modeling, making it possible to compare them, as well as to assess the possibility of using them in channels that provide users with different services. Practical importance: The modeling results can be used to build communication management decision support systems, as well as to detect attempts of unauthorized access to the telecommunications resource of transportation management systems. The proposed approach can be applied in the development of threat models to describe the capabilities of the intruder (the ‘Intruder Model’).


Author(s):  
Andrzej Misztal ◽  
Marcin Kuczera

The impact of land use on the water quality of foothill microcatchment areas The impact of land use on the water quality of foothill microcatchment areas. In this paper a comparison is made between the impact of land use methods on the quality of water in the streams which drain various catchment areas. For this purpose three microcatchments were selected which are located in agricultural, rural settlements, and forested areas. Water samples were physically and chemically analysed in order to determine: nitrates, nitrites, ammonia, phosphates, sulphates, chlorides, calcium, magnesium, dissolved oxygen, reaction and conductivity. The above studies were conducted in the 2006 and 2007. Our analysis of the collected materials allows us to affirm that land use methods have a significant impact on the water quality of the streams which drain the area. Rural settlement has the most negative influence on the water quality, followed by typical agricultural use. Based on the direct quality evaluations of single water samples, it has been found that only water from forested areas can be qualified as belonging to the 1st cleanness class.


2020 ◽  

Every procedural facilitation or a change in available equipment in treatment of out-of-hospital arrest (OHCA) by two-person teams may significantly enhance their performance quality. The aim of this study was to assess the impact of adrenaline in prefilled syringes on improving the adherence to Advanced Life Support protocol by understaffed teams. The research was based on a randomized cross-over high-fidelity simulation study. Two-person teams took part in two 10-minute simulation scenarios featuring sudden cardiac arrest in ventricular fibrillation (VF). The control group (group C) had at its disposal standard ampoules, whereas the experimental group (group E) prefilled syringes. The execution times of CPR start, defibrillation shocks, intravenous (IV) access, epinephrine and amiodarone doses were measured. Additionally, the chest compression fraction (CCF) was calculated. The designed two-minute loops were considerably prolonged in group C. Nineteen teams (31.1%) in group C but 49 (80.3%) in group E carried out the fifth defibrillation (P < 0.001). After two minutes of CPR nobody in group C switched to perform chest compressions. IV access was obtained significantly earlier in group E (114.7 ± 52.2 sec) than in group C (150.2 ± 68.6 sec)(P = 0.002). Two doses of adrenaline were administered in group E, whereas its second dose only by 12 teams in group C. The simulation study has proved that for understaffed teams a use of prefilled syringes not only did enhance the flow of ALS procedure, but it also improved the quality of cardiopulmonary resuscitation.


2020 ◽  
Vol 7 (11) ◽  
pp. 176-186
Author(s):  
Fatima Elyass Mohamed

This study was conducted to study the impact of low fees of the external auditors on the quality of the professional performance in the Kingdom of Saudi Arabia including the stages of development of the external audit, the standards of quality control, the factors affecting the quality of performance and the matters that affect the fees of the external auditor. The importance of this research stems from the importance of the auditor's work and how the events of economic collapses affect the fees of the auditor. This research raised several questions about the factors affecting improving the quality of audit services, the extent of the impact of the independence of the audit work team and determining their fees on the quality of the review process and determining the relationship between the internal auditor and the external auditor and the extent of approval of the second over first. The study samples were randomly selected to be about 10% of the study community (15 offices). Sixty questionnaires were distributed, of which 45 returned questionnaires, 75% valid for analysis. Data were analyzed using SPSS software for descriptive statistical analysis. The tested hypothesis were as follow: professional performance quality is not affected by the evolution of the audit office; It does not affect low fees and low on quality performance;  whenever the level of fees dropped the more professional level of excesses and the higher the quality of the performance of the internal auditor, the less external work references. The assumptions were tested regarding the above group of factors or the effect of the independent variables on the dependent variable. All of them accepted the hypothesis that the quality of professional performance was not affected by the development of the audit offices fees.


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