Miracle-dz/UniFAR-FTUs huggingface dataset:
Assessment of the physical state in elderly hypertensive patients

Background. The level of physical functioning is an indicator of biological age, a marker of health and quality of life, has prognostical significance for the risk of disability and death. The purpose was to assess the level of physical condition of patients with essential hypertension (EH) in the elderly (E) and old (O) age by The Short Physical Performance Battery (SPPB). Materials and methods. In 110 patients with 1–2 degree, stage II EH, mean age 69.1 ± 8.1 years, balance, gait speed and strength of the lower extremities were explores according to SPPB, evaluation of results were performed according to 4-point qualification system. Results. In EH patients a satisfactory level of physical functioning is registered: the total score for SPPB at E age was 10.49 ± 0.18, C — 8.57 ± 0.37. Among E hypertensive`s 92 % showed maximum possible 12 points, while among C ones 88 % — 10 points (p = 0.00001). The strength of the lower extremities demonstra­ted the most marked dynamics with age: the points number decreased by 30 % in O compared to E patients. In women the wea­kening of lower extremities strength appeared significantly grea­ter than in men, while gender differences were eliminated at age. Maintaining the balance with age decreased by 20 %: 48.7 % E patients received maximally possible 4 points, 66.8 % O — 3 points (p = 0.00001). In O group, balances deterioration were more common in men (χ2 = 8.6, p = 0.03), but the degree of imbalance in women was higher: 8 % females failed to perform the tests. In 89 % EH patients the speed of usual gait was registered within the age norms: the number of patients with gait speed < 0.8 m/s with age increased from 9 % in E to 17 % in O age. According to the results of ­SPPB, the incidence of Frailty syndrome was 11.1 %, Prefrailty — 22.8 %, most patients were classified as “robust”. Conclusions. EH patients C maintain a satisfactory level of physical functioning. Its deterioration with age is mainly due to a decrease in the strength of the lower extremities and disturbance of balance. Frailty syndrome according to SPPB was found in 18 % of O patients, while only in 3.4 % of E patients.
The Mathematics of Catastrophe

A mathematical description of catastrophe in complex systems modeled as a network is presented with emphasis on network topology and its relationship to risk and resilience. We present mathematical formulas for computing risk, resilience, and likelihood of faults in nodes/links of network models of complex systems and illustrate the application of the formulas to simulation of catastrophic failure. This model is not related to nonlinear “Catastrophe theory” by René Thom, E.C. Zeeman and others. Instead, we present a strictly probabilistic network model for estimating risk and resilience—two useful metrics used in practice. We propose a mathematical model of exceedance probability, risk, and resilience and show that these properties depend wholly on vulnerability, consequence, and properties of the network representation of the complex system. We use simulation of the network under simulated stress causing one or more nodes/links to fail, to extract properties of risk and resilience. In this paper two types of stress are considered: viral cascades and flow cascades. One unified definition of risk, MPL, is proposed, and three kinds of resilience illustrated—viral cascading, blocking node/link, and flow resilience. The principal contributions of this work are new equations for risk and resilience and measures of resilience based on vulnerability of individual nodes/links and network topology expressed in terms of spectral radius, bushy, and branchy metrics. We apply the model to a variety of networks—hypothetical and real—and show that network topology needs to be included in any definition of network risk and resilience. In addition, we show how simulations can identify likely future faults due to viral and flow cascades. Simulations of this nature are useful to the practitioner.
The low-mass end of the Mbh/Mhost relation in quasars

The Mbh-Mhost relation in quasars has been probed only in a limited parameter space, namely at Mbh~10^9 Msun and Mhost~10^12 Msun. Here we present a study of 26 quasars lying in the low-mass end of the relation, down to Mbh~10^7 Msun. We selected quasars from the SDSS and HST-FOS archives, requiring modest Mbh (as derived through the virial paradigm). We imaged our sources in H band from the Nordic Optical Telescope. The quasar host galaxies have been resolved in 25 out of 26 observed targets. Host galaxy luminosities and stellar masses are computed, under reasonable assumptions on their star formation histories. Combining these results with those from our previous studies, we manage to extend the sampled parameter space of the Mbh-Mhost relation in quasars. The relation holds over 2 dex in both the parameters, similarly to what observed in low-luminosity AGN and in quiescent galaxies. For the first time, we are able to measure the slope of the Mbh-Mhost relation in quasars. We find that it is consistent with the linear case (similarly to what observed in quiescent galaxies). We do not find any evidence of a population of massive black holes lying below the relation.
Refugee Stigma and Its Association with Depression Symptom Severity: Findings from Urban Refugees Living in Mbarara City, Southwestern Uganda

Introduction: Refugees in urban areas often face acculturation challenges, stigma, and stereotypes that impact their mental well-being. The aim of the present study was to examine the prevalence of stigma and its association with depressive symptoms among urban refugees living in Mbarara city, southwestern Uganda. Methods: This cross-sectional study used snowball sampling and interviewed 343 refugees residing in Mbarara city, southwestern Uganda. The Discrimination and Stigma Scale was used to assess stigma, whereas the Patient Health Questionnaire (PHQ-9) was used to screen for depression symptoms severity. Linear regression models determined the associations between stigma and depression symptoms severity. Data were collected between June 2019 and March 2020. Findings: Of the 343 participants, 198 were males and 145 were females; their mean age was 28.8 years (SD = 11.0). Most of the participants (95.3%) had attained formal education. Our findings show that 84% (n = 288) of the participants had symptoms of stigma. Stigma had a statistically significant positive association with depressive symptoms severity (b = 0.11; 95% CI, 0.08 to 0.15). Age had statistically significant and depression. Interventions aimed at reducing stigma could subsequently reduce depression among refugees living in urban areas.
International assessment of priority environmental issues for land-based and offshore wind energy development

Non-technical summary A substantial increase in wind energy deployment worldwide is required to help achieve international targets for decreasing global carbon emissions and limiting the impacts of climate change. In response to global concerns regarding the environmental effects of wind energy, the International Energy Agency Wind Technical Collaborative Program initiated Task 34 – Working Together to Resolve Environmental Effects of Wind Energy or WREN. As part of WREN, this study performed an international assessment with the global wind energy and environmental community to determine priority environmental issues over the next 5‒10 years and help support collaborative interactions among researchers, developers, regulators, and stakeholders. Technical summary A systematic assessment was performed using feedback from the international community to identify priority environmental issues for land-based and offshore wind energy development. Given the global nature of wind energy development, feedback was of interest from all countries where such development is underway or planned to help meet United Nations Intergovernmental Panel on Climate Change targets. The assessment prioritized environmental issues over the next 5–10 years associated with wind energy development and received a total of 294 responses from 28 countries. For land-based wind, the highest-ranked issues included turbine collision risk for volant species (birds and bats), cumulative effects on species and ecosystems, and indirect effects such as avoidance and displacement. For offshore wind, the highest-ranked issues included cumulative effects, turbine collision risk, underwater noise (e.g. marine mammals and fish), and displacement. Emerging considerations for these priorities include potential application to future technologies (e.g. larger turbines and floating turbines), new stressors and species in frontier regions, and cumulative effects for multiple projects at a regional scale. For both land-based and offshore wind, effectiveness of minimization measures (e.g. detection and deterrence technologies) and costs for monitoring, minimization, and mitigation were identified as overarching challenges. Social media summary Turbine collisions and cumulative effects among the international environmental priorities for wind energy development.
Some Links between Formal Concept Analysis and Graph Mining

This chapter presents a formal model to learning from examples represented by labelled graphs. This formal model is based upon lattice theory and in particular Galois lattices. We widen the domain of formal concept analysis, by the use of the Galois lattices model with structural descriptions of examples and concepts. The operational implementation of our model, called "Graal" (for GRAph And Learning) constructs a Galois lattice for any description language provided that the operations of comparison and generalization are determined for that language. These operations exist in the case of labelled graphs satisfying an partial order relation (homomorphism). This paper is concerned as well with the known problems regarding propositionalization (i.e. the transformation of a structural description in a propositional description). Using classical lattice results, we have a formal model for the transformation of a structural machine learning problem into a propositional one.
Localization of differential operators and holomorphic continuation of the solutions

The holomorphic continuation of solutions of linear partial differential equations across the multiple characteristic surfaces is the subject of this paper. In the preceding note [4] we attack this problem with the aid of the Goursat problem. Since the existence-domain of solutions of the Goursat problem is determined not only by the principal parts of the equations but also by their lower order terms, the results in [4] depend on the "weighted principal parts" of the operators which are not contained in the principal parts. The purpose of this paper is to improve the results in [4] so that the theorems are also valid under the similar assumptions only on the principal parts of the operators and the properties of the boundary surfaces. Let P(z, dz) be a linear partial differential operator with holomorphic coefficients defined near a point p in C and Ω be an open set with the C boundary dΩ which contains p. Though the property of the holomorphic continuation is free from the choice of the local coordinates, we here employ the weighted local coordinates at p such that the normal direction zί of dΩ at p is assigned the weight 2, while the tangential directions z29 . 9zn are each assigned the weight 1. The motivation of this employment is that the boundary dΩ can be approximated by the quadratic hypersurfaces of the form
Mapping Tidal Streams around Galactic Globular Clusters

The surroundings of globular clusters in the outer halo are one of the best places to look for the remnants of ancient dwarf satellites. The classical Searle & Zinn (1978) scenario of the formation of the Milky Way, in which the halo globular clusters formed in larger dwarf galaxies, can nowadays be considered the local manifestation of the hierarchical galaxy formation. It is now well known that some Galactic globular clusters are actually associated with the tidal stellar stream resulting from the accretion of dwarf satellites, thereby confirming that this process plays an important role in the building of the Milky Way globular cluster system. Furthermore, several recent studies have suggested that the two most luminous Galactic globular clusters (M54, associated with Sagittarius and Omega Centauri) might be the nuclei of dwarf galaxies. Extending previous suggestions, van den Bergh (2000) has argued that the ``young'' globulars located in the outer halo might be the nuclei of extinct dwarf galaxies and suggests that a search for evidence of this may prove worthwhile. If these clusters formed within larger stellar systems, we would expect to find them surrounded by a stellar population that should be revealed by deep photometry over a wide field. In this paper, we present the first (most interesting) preliminary results from a long term project designed to search for tidal debris around remote halo globular clusters, debris that may be the vestiges of the larger systems in which these clusters formed.
Physical Activity Pattern Before and during the COVID-19 Lockdown among Adolescents in Indonesia

BACKGROUND: Many countries have issued “stay at home” orders to combat the spread of coronavirus disease 2019 (COVID-19), which may have hampered movement in people of all ages. This may impact adolescent physical activity, sedentary behavior, screen time, etc. AIM: The purpose of this study was to assess changes in physical activity and screen time before and during the first and second COVID-19 lockdown among adolescents in Indonesia. METHODS: This study was a national web-based survey distributed through social media platforms in Indonesia. A snowball sampling method was used to recruit participants. The final sample included 5650 participants who had provided complete information for the research topic. RESULTS: Physical activity patterns of adolescents had dramatically shifted during COVID-19 lockdown, with disparities between genders and educational levels. The majority of adolescents had maintained their physical activity levels, with 34.4% of those who engaged in active transportation and 67.3% of those who walked; while, the remaining adolescents had experienced a decrease in physical activity (30.1%–63.1%). Adolescents had maintained their sleeping (about 50%) and screen time (31.4%), but almost 40% had decreased their sleeping time and 60.5% had significantly increased their screen time. Furthermore, when compared to their peers who had maintained their sedentary time before to COVID-19, more adolescents had increased their sedentary time throughout both schooldays and weekends (about 54%). CONCLUSION: This large-scale nationwide survey could be valuable for stakeholders, when deciding when and how to relax restrictions in the future. In addition, school administrators should be aware of these changes so that in-class and/or extracurricular physical programs can be developed to offset the effects of these changes.
Genetically Optimized Pitch Angle Controller of a Wind Turbine with Fuzzy Logic Design Approach

An important engineering challenge is the design of a wind turbine’s pitch angle controller. The dependability, safety, and power output maximization of a wind turbine are all impacted by this controller. In this study, a 2 MW doubly fed induction generator wind turbine’s blade angle controller design with a novel fuzzy logic controller is tested in a simulated environment. The evolutionary algorithm technique is used to optimize the fuzzy logic controller with three inputs. A genetic algorithm is used to optimize the specified pitch angle controller for a number of coefficients. After the optimization process, the controller’s performance is assessed in terms of power output, overshoot, and steady-state error characteristics.
Specific Domains of Creativity and Their Relationship with Intelligence: A Study in Selected Universities of Shaanxi Province of China

: In order to find the connection between emotional intelligence and cognitive creativity and emotional creativity through research on some colleges and universities in Shaanxi Province, this paper adopts a quantitative method, and conducts a questionnaire survey on the personality characteristics of college students, and finds that emotional intelligence and cognitive creativity are related. There is a positive correlation between cognitive creativity and emotional creativity, and can play a positive role in emotional creativity. Therefore, this study found that when cultivating individual emotional creativity, it is necessary to cultivate creativity and emotional intelligence synchronously, and organically combined to achieve the best educational effect.
Molecular Imaging and Quantification of Smooth Muscle Cell and Aortic Tissue Calcification In Vitro and Ex Vivo with a Fluorescent Hydroxyapatite-Specific Probe

Vessel calcification is characterized by the precipitation of hydroxyapatite (HAP) in the vasculature. Currently, no causal therapy exists to reduce or prevent vessel calcification. Studying the underlying pathways within vascular smooth muscle cells and testing pharmacological intervention is a major challenge in the vascular research field. This study aims to establish a rapid and efficient working protocol for specific HAP detection in cells and tissue using the synthetic bisphosphonate fluorescence dye OsteoSense™. This protocol facilitates especially early quantification of the fluorescence signal and permits co-staining with other markers of interest, enabling smaller experimental set-ups with lesser primary cells consumption and fast workflows. The fluorescence-based detection of vascular calcification with OsteoSense™ combines a high specificity with improved sensitivity. Therefore, this methodology can improve research of the pathogenesis of vascular calcification, especially for testing the therapeutic benefit of inhibitors in the case of in vitro and ex vivo settings.
An Analytical Drain Current Model of ZnO-Based Amorphous Oxide Semiconductor Thin-Film Transistors

An analytical one-piece drain current model of ZnO-based amorphous oxide semiconductor (AOS) thin-film transistors (TFTs) is presented in this article. This model is able to solve the main obstacle in a lack of analytical and physics-based nonregional device modeling for AOSTFTs and is suitable to be implemented into circuit simulators. Based on the effective-charge-density approach, free carrier density and localized carrier density, including tail and deep states, are unified into total carrier density. Then, one-piece surface potential is derived analytically from equivalent 1-D Poisson’s equation described in an effective-charge-density approach. It is also possible that channel carrier mobility is calculated from the ratio between free carrier and effective total carrier densities. Furthermore, drain current expression is derived analytically and validated by experimental data. Good agreements of <inline-formula> <tex-math notation="LaTeX">${I}$ </tex-math></inline-formula>–<inline-formula> <tex-math notation="LaTeX">${V}$ </tex-math></inline-formula> characteristics prove that the proposed model could serve as a useful simulation tool implemented into circuit simulators.
Method for Correcting Low-illumination Images Based on Adaptive Two-dimensional Gamma Function

: A two-dimensional gamma function-based color image correction method based on the illumination-reflection model and multi-scale theory is proposed. Firstly, the original image is histogram equalized, then converted to HSV color space, and the light components of the scene are extracted by multi-scale Gaussian function, and then the parameters of the 2D gamma function are adjusted by the distribution characteristics of the light components to construct a 2D gamma function to enhance the image. Finally, the images are fused. The comparison with the classical algorithm shows that the algorithm in this paper can better reduce the effect of uneven illumination on the image and improve the brightness and contrast of the image.
Evolution of Game in the History of Preschool Education Laws and Regulations in China

: In order to analyze the evolution of game in the history of preschool education laws and regulations in China, the laws and regulations concerning games and preschool education promulgated in the history of Chia from 1903 to now was studied by means of literature review, historical logic and historical analysis, mainly focusing on their social background, political situation, function enlightenment and other aspects. The results showed that during the period of 1903-1922, the new policy of saving the nation through education was put forward and basically copied from Japan. During the kindergarten period from 1922 to 1951, the education of Beiyang warlords worshipped the ancients. After the educational reform in the period of the Republic of China, game had its own position in preschool education. In the early stage of kindergarten development from 1951 to 1966, New China was founded and the pro-Russian ideology was strong. With the help of Russia, games developed more widely in preschool education in China. During the Cultural Revolution period from 1966 to 1976, games were in a backward stage in preschool education. Since 1976, the reform and Opening-up society has developed rapidly. China has introduced many laws and regulations on preschool education. Games completed a transformation in preschool education. These five periods show the evolution of games in China's preschool education laws and regulations from the perspective of time and society. In addition, the analysis results suggested that games helped children's later growth in preschool education in all aspects, and their development was influenced by the ideology, foreign policy, practice and key demands of the ruling party. To sum up, game has undergone a long period of progress in the evolution of preschool education laws and regulations in China. It has a very important positive impact on the later growth of young children so that the society and the government should give adequate support and recognition.
The Comparative Analysis of EMG Activities on the Lower Limb Muscles during Power Walking and Normal Walking

The purpose of this study was to compare EMG activities on the lower limb muscles during power walking and mormal walking. Seventeen subjects who have no known musculoskeletal disorders performed walking exercise at a cadence of 140 beats/min. After surface electrodes were attached to rectus femoris, vastus medialis, vastus lateralis, biceps femoris, tibialis anterior, medial gastrocnemius, averageed IEMG and peak IEMG, were measured. The result showed that the power walking did influence the averaged IEMG and peak IEMG. The EMG activity of the quadriceps during power walking was significantly higher than the corresponding values in normal walking during most phases. The averaged IEMG and peak IEMG of gastrocnemius muscles at the end of the double limb stance increased significantly when going from normal walking to power walking. The results indicate that power walking had greater effect on EMG activities on the lower limb muscles and demonstrate that the wide range of benefits can be obtained from power walking in respect to health and fitness. This study suggests that power walking has the potential to improve aerobic fitness and assist in weight management.