Miracle-dz/UniFAR-FTUs huggingface dataset:
A Method for Evaluating the Accuracy of Vocal Art Performance of Singers’ Voices Based on Sensor Space Localization Algorithm

Recently, research on singing assessment has focused on analyzing singer characteristics rather than building an automated evaluating approach. Hence, there are many methods for evaluating the accuracy of singer’s singing performance. Traditional methods mostly use quantitative analysis approach for the accuracy analysis of vocal artistic performance, and the results have obvious ambiguity and correlation. Therefore, this paper proposes a method for evaluating the accuracy of vocal art expression of singers’ voices based on a sensor spatial localization algorithm. The adaptive cascade retrieval control approach is used to find and mine the singers’ performance based on their voice characteristics. The sensor spatial location algorithm and huge vocal music resources with high precision are utilized to locate the vocal music sources in the mining results. The vocal music of the singers is received through the vocal music preprocessing platform, which sends and controls musical compositions. The adaptive frequency’s shift filter and the wavelet transform method are used to filter out any noise in the music. Finally, the accurate evaluation of singer vocal artistic performance is realized from the aspects of music beat detection, note boundary accuracy analysis, and voiced segment accuracy detection. The experimental results show that our proposed method can reduce the error of the sound source’s localization and can effectively filter out the noise in the music signal.
Pulsed I/V and S‐parameters measurement system for isodynamic characterization of power GaN HEMT transistors

This article presents a system capable of performing isodynamic I/V and S‐parameter measurements. It is focused on the necessary characterization signals, laboratory equipment, and pulser (power head). Proper biasing waveforms are developed and used to extract accurate nonlinear measurements that take into account the frequency dispersive phenomena, namely, the drain lag and temperature rise observed in GaN HEMTs. The pulser can drive high power devices (120 V and 45 A) for very fast and accurate pulses (widths between 300 and 800 ns). As validation, a commercial 15 W GaN device (CGH27015P) from Wolfspeed was characterized using this setup. The consistency between the obtained pulsed I/V curves and others obtained by the integration of the small signal transcondutance (gm) and output conductance (gds) proves that the presented system is capable of performing isodynamic characterization of power transistors.
Online Addictions Among Adolescents and Young Adults in Iran: The Role of Attachment Styles and Gender

The present study aimed to investigate the role of attachment styles and gender among different online addictions (social media addiction, online gaming addiction, and internet addiction) among adolescents and young adults via an online survey. The participants comprised 943 Iranian students (440 females) selected by multi-stage cluster sampling. The survey included the nine-item form of the Problematic Internet Use Questionnaire (Laconi et al., 2019), nine-item Internet Gaming Disorder Scale-Short Form (Pontes & Griffiths, 2015), Bergen Social Media Addiction Scale (Andreassen et al., 2016), and Parent and Peer Attachment Styles Questionnaire (Gullone & Robinson, 2005). The results showed that online addictions were negatively correlated with secure attachment style, while insecure styles were positively correlated with all three types of online addiction. The results also showed that young adults were more involved in online activities, online addictive behaviors increased with age, and online gaming addiction was more prevalent among males than females. These findings indicate that individuals with a secure attachment style are less susceptible to online addictions and individuals with an insecure attachment style report more online addiction.
Machine Learning-Based Solar Power Energy Forecasting

The expanding interest in energy is one of the main motivations behind the integration of solar energy into electric grids or networks. The exact expectation of solar oriented irradiance variety can improve the nature of administration. This coordination of solar-based vitality and exact expectations can help in better arranging and distributing of energy. Discovering vitality sources to fulfil the world’s developing interest is one of the general public’s major difficulties for the coming fifty years. In this research, two machine learning techniques utilized for hourly solar power forecasting are presented. The solar power prediction model becomes robust and efficient for solar power energy forecasting once the redundant information is removed from raw data, experimental data is transformed into a settled range, the best features selection method is chosen, four different weather profiles are made based on different weather conditions and the right time series machine learning algorithm is chosen.
The Greek Sovereign Crisis: A Post-Keynesian Synthesis

Abstract The Greek crisis shocked many by its magnitude and by the nature of the policies implemented in its aftermath. The radical nature of the so-called Memorandum of Understanding was justified by the imbalances that the Greek economy experienced before the crisis. The current account deficit had been rising, as private and external debts. In addition, the ratio of public debt to GDP exceeded 100%. The crisis has been widely explained by a lack of fiscal discipline, a loss of competitiveness, and the rise of capital inflows. In this article, we seek to refute these narratives and offer a post-Keynesian interpretation of the Greek economic trajectory. Growing private indebtedness boosted imports. The resulting current account deficits were offset by rising capital inflows. Greece’s high level of public debt goes back to the 1980s. The narrow tax base of the country and usurious interest rates are to blame. However, none of these trends was sufficient to trigger the sovereign debt crisis. We argue that the main cause of the Greek crisis lies in the political economy of the Eurozone, and more particularly in its asymmetric governance.
Effectiveness of Cardiac Rehabilitation in Myocardial Infarction Patients After Percutaneous Coronary Intervention

Background Post myocardial infarction rehabilitation can have a positive impact on overall patient health. Therefore, the present study investigated the role of cardiac rehabilitation in reducing the frequency of arrhythmias, recurrent angina, readmission, and mortality in patients who underwent percutaneous coronary intervention. Methodology A prospective observational study was conducted at the Cardiology Department, Khyber Teaching Hospital, Pakistan, between 1st March 2021 and 30th May 2021. All patients who were discharged after being diagnosed with acute myocardial infarction were included in the study. Patients who were not able to give consent, had physical fragility, mental impairment, or those who have critical illness were excluded from the study. 40 patients underwent cardiac rehabilitation while the other 40 acted as controls. The cardiac rehabilitation group patients were asked to engage in 15-30 minutes of activity daily and keep a record of all their activities. Death, recurrence, rhythm abnormalities, rehospitalizations, and BMI (body mass index) were all documented on a predesigned proforma and compared between intervention and control. A three-month-long follow-up plan was established. Results A total of 80 patients were enrolled in the study. Post-infarction angina (p = 0.0012) was significantly higher in patients who did not receive cardiac rehabilitation (CR). The incidence of arrhythmias was significantly higher in the control group as compared to the rehab group (p=0.002). Moreover, the mean left ventricular ejection fraction (LVEF) was also significantly higher in patients who underwent CR as compared to the control group (44.76 ± 13.8 vs. 42.9 ± 13.5, p = 0.01). There was no significant difference between the post-intervention BMI in the rehab group. Conclusion In conclusion, the present study findings revealed that mild to moderate cardiac rehabilitation (CR) was related to the less frequent occurrence of post-infarction angina and arrhythmias. Moreover, we found that patients who received CR experienced a significant improvement in left ventricular ejection fraction (LVEF) as compared to the control group. However, further large-scale studies from multiple centers are warranted.
Relaxation d’ondes optiques non-linéaires : thermalisation d’ondes incohérentes et attraction de polarisation

La premiere partie de cette these est consacree a l'etude de la thermalisation d'ondes incoherentes. Grâce a des arguments thermodynamiques, la theorie cinetique de la turbulence faible permet d'interpreter un nouveau processus de verrouillage de vitesses de groupe lors de l'interaction d'ondes optiques incoherentes se propageant dans des milieux a non linearite cubique ou quadratique. La deuxieme partie de cette these concerne la generalisation de l'attraction de polarisation dans les fibres optiques isotropes. L'etude de la relaxation de la dynamique spatio-temporelle vers un etat stationnaire caracteristique met en evidence l'existence et le role de tores singuliers dans l'espace des phases pour la dynamique du systeme.
MHD Free Convection and Mass Transfer Flow with Heat Source and Thermal Diffusion

The present paper deals with the study of free convection and mass transfer flow of an incompressible, viscous and electrically conducting fluid past a continuously moving infinite vertical porous plate in presence of large suction and under the influence of uniform magnetic field considering heat source and thermal diffusion. Introducing the usual similarity transformations, the equations of momentum, energy and concentration are made similar. To obtain local similarity solutions of the problem the similarity equations are solved using perturbation technique. The velocity, temperature and concentration fields are shown graphically to observe the effects of parameters entering in the problem. The skin-friction coefficient, rate of heat and mass transfer are shown in tabular form. Finally a thorough discussion of different results is presented.
Interacting and communicating with children: an exploratory study about educators’ behavior during a collaborative activity

ABSTRACT Educators’ acts and verbalizations toward children during daily routines can promote children's early participation, self-agency, and self-esteem. In this study, we investigate the association between the educator’s type of Verbalizations (Number of Suggestions, Directions, Orders, Positive and Negative Feedback, Teaching, Questions) and the quality of their Interactive Behavior (cf. Empathy, Pedagogical Challenging, Cooperation, Reciprocity and Engagement behavior) during a collaborative activity with a child. Sixty-four educator-child dyads, with children ranging from 3- to 5-years old and educators with more than five years of professional experience, were observed while manufacturing a product of their choice for 20 min using predefined materials and tools. Videos were scored according to the Tandem guidelines and scales. Our findings suggest that the educator’s verbalizations and interactive behavior are associated, creating a relational context that shapes interactions and children's participation.
Climate Change Adaptation Strategies Towards Reducing Vulnerability to Drought in Northern Ghana

The impacts of climate change especially on water resources are beginning to manifest both globally and regionally. More disturbing is the fact that developing countries, particularly those in sub-Saharan Africa, are the most affected by these impacts due mainly to their high exposure, sensitivity, and low adaptive capacity. For Ghana, the general climate change has manifested in rising temperatures, declining rainfall, high extreme weather conditions, and rising sea levels. In response to these challenges, the country has developed national adaptation strategies for implementation at regional, district, community, and individual levels. Key among the strategies for reducing the impacts of climate change on the water are the conservation of water resources, improving and sustaining the quality of water, and increasing the availability of water for domestic and agricultural purposes. However, the level of vulnerability to climate change is influenced by both social and spatial factors because of the different ecological zones whose characteristics significantly influence both the physical and socio-economic dimensions of the various areas differently. Additionally, the decentralized implementation of the national climate change adaptation strategy has largely failed to achieve any significant results due to a lack of capacity on the part of the implementation partners at the various levels, as well as the overambitious nature of the strategy. A more ecologically tailored approach with an emphasis on the district and community levels is recommended for going forward. Improvements on the various components of vulnerability with regard to water management are recommended for reducing the effects of droughts.
Aalborg Universitet The repetition effect in building and construction works A literature

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Scenario based user centred design process: application on innovative surgical instruments design for Minimally Invasive

This PhD research is a contribution to the design process of innovative surgical instruments, particularly for minimally invasive surgery (MIS) for which the collaboration of surgeons and engineers is inevitable. Reviewing the literature shows that there is a gap between what surgeons need and what the engineers design. An approach to fill this gap is to build a design process which enables surgeons and engineers to work together, or in other words, enables the designer to integrate the surgeon in the design process. Taking the action research as the research method, this thesis went through the action of a 2-year design project of an MIS instrument, Protige, and observed and captured the experiment. The analyses of the corpus of observation showed new aspects of design process: the coevolution of product and usage during the process, and the role of the expert user in the design progression. These results led to propose new descriptions of design process, such as emulation step and expert- UCD, and provided bases for proposing a descriptive design process model for innovative surgical instruments. The validity of the proposed model was examined by applying to another MIS instrument design, and an informatic structure was proposed as a support for the process model.
Methane and Carbon Dioxide Fluxes in a Temperate Tidal Salt Marsh: Comparisons Between Plot and Ecosystem Measurements

Tidal wetlands are comprised of complex interdependent pathways where measurements of carbon exchange are often scale dependent. Common data collection methods (i.e., chambers and eddy covariance) are inherently constrained to different spatial and temporal scales which could generate biased information for applications of carbon accounting, identifying functional relationships and predicting future responses to climate change. Consequently, it is needed to systematically evaluate measurements derived from multiple approaches to identify differences and how techniques complement each other to reconcile interpretations. To accomplish this, we tested ecosystem‐scale eddy covariance with plot‐scale chamber measurements within a temperate salt marsh. We found good agreement (R2 = 0.71–0.95) when comparing measurements of CH4 emissions and CO2 exchange but this agreement was dependent upon canopy phenology with discrepancies mainly arising during senescence and dormancy phenophases. The environmental drivers for CH4 and CO2 fluxes were mostly preserved across different measurement techniques, but the number of drivers increases while their individual strength decreases at the ecosystem scale. Empirical upscaling models parameterized with chamber measurements overestimated annual net ecosystem exchange (NEE; 108%) and gross primary production (GPP; 12%) while underestimating ecosystem respiration (Reco; 14%) and CH4 emissions (69%) compared to eddy covariance measurements. Our results suggest that the environmental complexity of CH4 and CO2 fluxes in salt marshes may be underestimated by chamber‐based measurements, and highlights how different techniques are complementary while considering limitations at each level of measurement.
Ambiguity Tests and How to Fail Them

A number of tests used by linguists to distinguish a.mbtffiitf from lack of specification are described and illustrated, wi 1 brief critical commentary. The tests appeal to semantic, syntactic, and pragmatic principles. Special attention is given to tests using transformations whose applicability depends upon identity of sense; these tests can help to decide the status of examples for which other tests give no evidence. But there is a class of cases where the identity.tests predict ambiguity, even though common sense (and tests not involving identity of sense) says that these cases involve special uses of sentences, not meaning proper, and other tests for ambiguity agree, These cases are characterized, and their anomalous behavior is explained on the grounds that they require suspension of the sincerity principle of conversation (that one means what one says). 1, Background. The notion of ambiguity plays a fundamental role in syntactic argumentation. Indeed, much recent discussion turns on whether particular examples are or are not ambiguous, and if they nre, in '-, . what way. The existence of a rule of neg-Transportation depends ultimately on whether sentences like (1) I don't think she's bald. are ambiguous (betveen a reading like that of Itts not the case that I think she's bald and one like that of I .think she's not bald) and the treatment of sentence types and speech acts involves a decision about how many readings examples like (2) Why don't you ask her for help? have (question and suggestion, in this case). The cases can be listed for pages~ phrasal conjunction, tough Movement, Psych Movement, sloppy identity, rererential opacity, and so on. In each case, the question is how many underlying (or semgntic) representations
Factors Influencing Car Purchasing Intention: A Study among Vietnamese Consumers

This study explored factors influencing the intention of buying a car among Vietnamese consumers. This quantitative study administered questionnaire surveys to 242 respondents in Ho Chi Minh City, Vietnam. The linear regression analysis revealed five factors influencing the car purchasing intention: brand, perceived quality, technology, the performance of the car and customers' purchasing capacity (i.e. value and income). As the strongest contribution to the car purchasing intention, the car brand contributed the most to customers’ decision-making process. Surprisingly, consumers considered safety and security very minimally when deciding to purchase their cars. Concerns and potential benefits of the results were discussed from the perspective of consumers, manufacturers, and policymakers.
Discover Implicit Relationships Between Researchers Using Email Tracking

The study addresses the issue of discovering implicit relationships between individuals in a community using newsletters. It starts by discussing the technologies brought by Web 2.0 and focuses on interaction as the core to achieve reliable results. Then, it describes the proposed solution and its architecture and discusses the concept of communities and its relation with implicit and explicit connections. Finally, the paper discusses Nano-Tera.ch case study where the solution was developed and evaluated in a sample of one thousand of individuals, as well as the statistical results and conclusions.
Automotive Consumerism in Malaysia with Regard to Car Maintenance

This paper aims to review relevant legal framework, statistics, news reports and findings from the 'automotive ecosystem' study by MIROS relating to car maintenance issues in Malaysia. The automotive consumerism data mainly comes from the Road Transport Department (RTD), Ministry of Domestic Trade, Co-operatives and Consumerism (MD'TCC) and National Consumer Complaints Centre (NCCC), in addition to news articles via web search. In summary, there are several laws and legislations involving various authorities which can be utilised to safeguard automotive consumers ranging from before car registration, during car ownership up to de-registration of the car. Based on the statistics and news reports, car maintenance complaints mostly involved motor vehicle workshop and parts, accessories as well as vehicles. With respect to motor vehicle workshop, quality of repair received the highest number of complaints in NCCC report in 2015 (51.1%), while sales service and manufacturing defects were the main issues in the parts, accessories and vehicles category (22.5% and 21.4% respectively). In regard to car users' behaviour in Klang Valley (500 respondents) and Kuching (300 respondents), a majority of them chose to bring their cars for maintenance either to authorised service centre or general car workshops, instead of performing the maintenance themselves or alternating between the available options. Most car users' agreed on the importance of scheduled maintenance according to manufacturer recommendation and performing maintenance at general car workshops. However, they are unsure of the quality, in addition to maintenance and retrofitting behaviour.
Evolution of the Atlantic Intertropical Convergence Zone, and the South American and African Monsoons Over the Past 95‐Myr and Their Impact on the Tropical Rainforests

The widening of the South Atlantic Basin led to the reorganization of regional atmospheric and oceanic circulations. However, the response of the Atlantic Intertropical Convergence Zone (ITCZ), and South American and African monsoons across paleoclimate states, especially under constant paleogeographic and climatic changes, has not been well understood. Here we report on paleoclimate simulations of the Cenomanian (∼95 Ma), early Eocene (∼55 Ma), and middle Miocene (∼14 Ma) using the Community Earth System Model version 1.2 to understand how the migration of the South American and African continents to their modern‐day positions, uplift of the Andes and East African Rift Zone, and the decline of atmospheric CO2 changed the Atlantic ITCZ, and the South American and African monsoons and rainforests. Our work demonstrates that the South Atlantic widening developed the Atlantic ITCZ. The South Atlantic widening and Andean orogeny led to a stronger South American monsoon. We find the orogeny of the East African Rift Zone is the primary mechanism that strengthened the East African monsoon, whereas the West African monsoon became weaker through time as West Africa migrated toward the subtropics and CO2 levels fell below 500 ppm. We utilize the Köppen‐Geiger Climate Classification as an indicator for maximum rainforest extent. We find that during the Cenomanian and early Eocene, a Pan‐African rainforest existed, while the Amazon rainforest was restricted toward the northwestern corner of South America. During the middle Miocene, the Pan‐African rainforest was reduced to near its modern‐day size, while the Amazon rainforest expanded eastward.