Перспективні напрями вдосконалення процесу формування готовності студентів-вокалістів до сценічної діяльності

The article clarifies the essence of the concept of "readiness of vocal students for stage activities". The need to identify promising directions for improving the process of formation of this phenomenon is substantiated. The dependence of student-vocalists' readiness for stage activities on the quality of preparation of musical works for public interpretation is considered. The spectrum of searches for effective forms and methods of improving the process of formation of the given phenomenon is highlighted thanks to the discovery of promising ideas, the implementation of which makes it possible to achieve perfect readiness of student vocalists for stage activities. The organization and course of a research experiment aimed at testing the effectiveness of well-founded hypotheses regarding the expedient use of voluntary and involuntary types of memory of student vocalists in the process of preparing a concert program for a stage presentation is described. It has been experimentally proven that effective forms and methods of improving the process of purposeful formation of students-vocalists' readiness for stage activities are those that enable them to use an arbitrary form of memorizing musical and literary text, and during its reproduction (creative interpretation) - a mixed one.Key words: readiness of vocal students for stage activities, musical works, forms and methods of memorizing sheet music, voluntary memory, involuntary memory.У статті з’ясовано сутність поняття «готовність студентів-вокалістів до сценічної діяльності». Обґрунтовано потребу у виявленні перспективних напрямів удосконалення процесу формування означеного феномену. Розглянуто залежність готовності студентів-вокалістів до сценічної діяльності від якості підготовленості музичних творів до прилюдної інтерпретації. Висвітлено спектр пошуків ефективних форм і методів удосконалення процесу формування означеного феномену завдяки віднайденню перспективних ідей, реалізація яких надає змогу досягти досконалої готовності студентів-вокалістів до сценічної діяльності. Описано організацію та перебіг пошукового експерименту спрямованого на перевірку ефективності обґрунтованих гіпотез стосовно доцільного застосування довільного та мимовільного видів пам’яті студентів-вокалістів у процесі підготовки концертної програми до сценічної презентації. Експериментально доведено, що ефективними формами і методами вдосконалення процесу цілеспрямованого формування готовності студентів-вокалістів до сценічної діяльності є ті, які надають їм змогу застосовувати довільну форму запам’ятовування нотного й літературного тексту, а під час його відтворювання (творчої інтерпретації) — змішану.Ключові слова: готовність студентів-вокалістів до сценічної діяльності, музичні твори, форми і методи запам’ятовування

Mandarin's Impact on Poverty Alleviation: An Empirical Study Based on Economic and Social Interaction Dimensions

This paper studies the effect of Mandarin proficiency on poverty reduction and its mechanism. The China General Social Survey (CGSS) is taken as the data source. From the perspective of social integration, the poverty reduction effect of Putonghua and its mechanism are empirically studied from the perspective of social interaction, social fairness, and social trust. The findings showed that improving the ability to listen and speak Mandarin positively affects social interaction, social trust, and social fairness. It showed that Putonghua proficiency positively correlates with the suppression of economic poverty. After the occurrence of poverty, whether a sample of absolute poverty or relative poverty, the ability to listen and speak in Mandarin has a specific inhibitory effect on social interaction, social trust, and social fairness. After the occurrence of poverty, the frequency of social interaction, social trust, and social public since have been reduced to a certain extent. Specifically, the ability to express Mandarin has shown remarkable results in improving social interaction, and the ability to listen among ordinary people has shown remarkable results in enhancing social fairness. The results of this paper provide empirical evidence of poverty alleviation in China via Improving Mandarin Proficiency. This research is also of great significance for optimizing poverty alleviation paths through language in the post-poverty alleviation era

The Effect of Physical Activity on the Non-cognitive Ability of Adolescents: An Empirical Study on Big Five Personality Traits and Large Sample Data of CFPS 2020

Based on the Big Five personality trait dimensions of non-cognitive ability measures, the CFPS 2020 database was used as the basis, The self-answered questionnaires and messages were collected from the people under the age of 18. And information on physical activity were selected as the study sample from the total 28590 samples in this database, among which 1562 valid samples were used as the study subjects. And the corresponding options and answers were selected as the dependent variables related to the Big Five personality like responsibility, agreeableness, extraversion, and neuroticism. After constructing a model with logit regression and calculating the marginal effects, it empirically demonstrated that increasing the frequency of physical exercises (frequency) had positive effects on promoting or improving adolescents' sense of responsibility, agreeableness, extraversion, and neuroticism, the frequency of physical exercise (frequency) in the past 12 months was used as the dependent variable, the effects were different between urban and rural areas, age, and gender. There were differences between urban and rural areas, age and gender

Single-shot compressed ultrafast photography: a review

Compressed ultrafast photography (CUP) is a burgeoning single-shot computational imaging technique that provides an imaging speed as high as 10 trillion frames per second and a sequence depth of up to a few hundred frames. This technique synergizes compressed sensing and the streak camera technique to capture nonrepeatable ultrafast transient events with a single shot. With recent unprecedented technical developments and extensions of this methodology, it has been widely used in ultrafast optical imaging and metrology, ultrafast electron diffraction and microscopy, and information security protection. We review the basic principles of CUP, its recent advances in data acquisition and image reconstruction, its fusions with other modalities, and its unique applications in multiple research fields

NAV Inflation and Impact on Performance in China

Our study is among the first to examine the net asset value (NAV) inflation practices of fund managers in China, finding that equity funds bolster their portfolios at quarter-end and especially year-end. In support of the NAV inflation hypothesis in China, we further document the following: (1) NAV inflation is more profound for the worst-performing fund managers and (2) the stocks in which fund managers hold larger stakes exhibit a more marked pattern of price inflation around quarter- and year-ends than do other stocks. We also find that closed-end funds in China engage in NAV inflation at quarter- and year-ends

A flexible and accurate total variation and cascaded denoisers-based image reconstruction algorithm for hyperspectrally compressed ultrafast photography

Hyperspectrally compressed ultrafast photography (HCUP) based on compressed sensing and the time- and spectrum-to-space mappings can simultaneously realize the temporal and spectral imaging of non-repeatable or difficult-to-repeat transient events passively in a single exposure. It possesses an incredibly high frame rate of tens of trillions of frames per second and a sequence depth of several hundred, and plays a revolutionary role in single-shot ultrafast optical imaging. However, due to the ultra-high data compression ratio induced by the extremely large sequence depth as well as the limited fidelities of traditional reconstruction algorithms over the reconstruction process, HCUP suffers from a poor image reconstruction quality and fails to capture fine structures in complex transient scenes. To overcome these restrictions, we propose a flexible image reconstruction algorithm based on the total variation (TV) and cascaded denoisers (CD) for HCUP, named the TV-CD algorithm. It applies the TV denoising model cascaded with several advanced deep learning-based denoising models in the iterative plug-and-play alternating direction method of multipliers framework, which can preserve the image smoothness while utilizing the deep denoising networks to obtain more priori, and thus solving the common sparsity representation problem in local similarity and motion compensation. Both simulation and experimental results show that the proposed TV-CD algorithm can effectively improve the image reconstruction accuracy and quality of HCUP, and further promote the practical applications of HCUP in capturing high-dimensional complex physical, chemical and biological ultrafast optical scenes.Comment: 25 pages, 5 figures and 1 tabl

Strong [O III] {\lambda}5007 Compact Galaxies Identified from SDSS DR16 and Their Scaling Relations

Green pea galaxies are a special class of star-forming compact galaxies with strong [O III]{\lambda}5007 and considered as analogs of high-redshift Ly{\alpha}-emitting galaxies and potential sources for cosmic reionization. In this paper, we identify 76 strong [O III]{\lambda}5007 compact galaxies at z < 0.35 from DR1613 of the Sloan Digital Sky Survey. These galaxies present relatively low stellar mass, high star formation rate, and low metallicity. Both star-forming main sequence relation (SFMS) and mass-metallicity relation (MZR) are investigated and compared with green pea and blueberry galaxies collected from literature. It is found that our strong [O III] {\lambda}5007 compact galaxies share common properties with those compact galaxies with extreme star formation and show distinct scaling relations in respect to those of normal star-forming galaxies at the same redshift. The slope of SFMS is higher, indicates that strong [O III]{\lambda}5007 compact galaxies might grow faster in stellar mass. The lower MZR implies that they may be less chemically evolved and hence on the early stage of star formation. A further environmental investigation confirms that they inhabit relatively low-density regions. Future largescale spectroscopic surveys will provide more details on their physical origin and evolution.Comment: 12 pages, 8 figures, 1 table. Published in A

Cardiovascular outcomes and safety of SGLT2 inhibitors in chronic kidney disease patients

BackgroundSodium–glucose co-transporter 2 (SGLT2) inhibitors provide cardiovascular protection for patients with heart failure (HF) and type 2 diabetes mellitus (T2DM). However, there is little evidence of their application in patients with chronic kidney disease (CKD). Furthermore, there are inconsistent results from studies on their uses. Therefore, to explore the cardiovascular protective effect of SGLT2 inhibitors in the CKD patient population, we conducted a systematic review and meta-analysis to evaluate the cardiovascular effectiveness and safety of SGLT2 inhibitors in this patient population.MethodWe searched the PubMed® (National Library of Medicine, Bethesda, MD, USA) and Web of Science™ (Clarivate™, Philadelphia, PA, USA) databases for randomized controlled trials (RCTs) of SGLT2 inhibitors in CKD patients and built the database starting in January 2023. In accordance with our inclusion and exclusion criteria, the literature was screened, the quality of the literature was evaluated, and the data were extracted. RevMan 5.3 (The Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen, Denmark) and Stata® 17.0 (StataCorp LP, College Station, TX, USA) were used for the statistical analyses. Hazard ratios (HRs), odds ratios (ORs), and corresponding 95% confidence intervals (CIs) were used for the analysis of the outcome indicators.ResultsThirteen RCTs were included. In CKD patients, SGLT2 inhibitors reduced the risk of cardiovascular death (CVD) or hospitalization for heart failure (HHF) by 28%, CVD by 16%. and HHF by 35%. They also reduced the risk of all-cause death by 14% without increasing the risk of serious adverse effects (SAEs) and urinary tract infections (UTIs). However, they increased the risk of reproductive tract infections (RTIs).ConclusionSGLT2 inhibitors have a cardiovascular protective effect on patients with CKD, which in turn can significantly reduce the risk of CVD, HHF, and all-cause death without increasing the risk of SAEs and UTIs but increasing the risk of RTIs