ASTRO: Reducing COVID-19 Exposure through Contact Prediction and Avoidance

The fight against the COVID-19 pandemic has highlighted the importance and benefits of recommending paths that reduce the exposure to and the spread of the SARS-CoV-2 coronavirus by avoiding crowded indoor or outdoor areas. Existing path discovery techniques are inadequate for coping with such dynamic and heterogeneous (indoor and outdoor) environments—they typically find an optimal path assuming a homogeneous and/or static graph, and hence they cannot be used to support contact avoidance. In this article, we pose the need for Mobile Contact Avoidance Navigation and propose ASTRO ( A ccessible S patio- T emporal R oute O ptimization), a novel graph-based path discovering algorithm that can reduce the risk of COVID-19 exposure by taking into consideration the congestion in indoor spaces. ASTRO operates in an A * manner to find the most promising path for safe movement within and across multiple buildings without constructing the full graph. For its path finding, ASTRO requires predicting congestion in corridors and hallways. Consequently, we propose a new grid-based partitioning scheme combined with a hash-based two-level structure to store congestion models, called CM-Structure , which enables on-the-fly forecasting of congestion in corridors and hallways. We demonstrate the effectiveness of ASTRO and the accuracy of CM-Structure ’s congestion models empirically with realistic datasets, showing up to one order of magnitude reduction in COVID-19 exposure.

Level Structure and Properties of Open f-Shell Elements

Open f-shell elements still constitute a great challenge for atomic theory owing to their (very) rich fine-structure and strong correlations among the valence-shell electrons. For these medium and heavy elements, many atomic properties are sensitive to the correlated motion of electrons and, hence, require large-scale computations in order to deal consistently with all relativistic, correlation and rearrangement contributions to the electron density. Often, different concepts and notations need to be combined for just classifying the low-lying level structure of these elements. With Jac, the Jena Atomic Calculator, we here provide a toolbox that helps to explore and deal with such elements with open d- and f-shell structures. Based on Dirac’s equation, Jac is suitable for almost all atoms and ions across the periodic table. As an example, we demonstrate how reasonably accurate computations can be performed for the low-lying level structure, transition probabilities and lifetimes for Th2+ ions with a 5f6d ground configuration. Other, and more complex, shell structures are supported as well, though often for a trade-off between the size and accuracy of the computations. Owing to its simple use, however, Jac supports both quick estimates and detailed case studies on open d- or f-shell elements.

A Study on Hot Topics in Social Media of Tokyo 2020 Olympic Games

During the Tokyo 2020 Olympic Games, Sina Weibo, as a high-frequency platform, has a wide range of topics and a large number of participants, and is the main channel for Internet users to obtain information. "People's Daily" is the media with high influence on social hot events in the wave microblog, from the opening day of the 2020 Tokyo Olympic Games to the end of the closing ceremony, among all the Olympic Games-related topics released by People's Daily, there were 343 topics with more than 50,000 likes, and 343 topics were used as hot topics for research. Among the 343 hot topics, 64 were table tennis-related topics, and table tennis was the sport with the highest attention among the hot topics. The social network method was used to quantify the People's Daily hot topics, establish a 2-mode network, study social actors as well as social structure from the perspective of relationships, and explain the structure of the 2-mode network and the influence of the macro-level structure on actors.

Analysis of the Differences in OCOP Products between Thanh Hoa Province and Nghe an Province

This research analyzes the differences in OCOP products between Thanh Hoa province and Nghe An province, Vietnam. OCOP products are analyzed based on three aspects: Product mean score (Product level), Structure of product type, and Structure of product region. The analysis sample includes 115 OCOP products from 3 to 5 stars in each province (230 products in total). Research results are confirmed that there are some differences in OCOP Products between Thanh Hoa province and Nghe An Province. Whereby, there is the difference in the mean score, the difference in the structure of product type, and the difference in the structure of product region. These results help the authorities in both provinces to have appropriate policies and support tools to develop local OCOP products by the goals and orientations of each locality to commercialize strongly rural products that have their comparative advantage.

Dynamics of mortality from diseases of the circulatory system in the Voronezh region

INTRODUCTION: The mortality rate of the population from diseases of the circulatory system is one of the most pressing problems in the socio-economic development of the Russian Federation and its regions. Since mortality from diseases of the circulatory system ranks first among all causes of mortality in the population, this problem needs special attention and measures addressed to them. AIM: Conduct a comparative analysis of indicators of the level, structure and dynamics of mortality from diseases of the circulatory system of the population of the Voronezh region for 2010–2019. MATERIALS AND METHODS: In this article analytical and statistical research methods were used. RESULTS: The features of the dynamics of the mortality rate from diseases of the circulatory system in the Voronezh region from 2010 to 2019 have been revealed: there is a positive steady downward trend, including mortality from diseases of the circulatory system at working age, by 18.2%; the leading place in the structure of the causes belongs to diseases of the circulatory system (42.5% and 37.4% for the working age); in the structure of deaths from diseases of the circulatory system, persons over 60 years of age prevale (63.3%), the involvement people under the working age is insignificant and amounts to 7%, the total amount of women younger than the working age and working age is 1.5 times less than in corresponding groups in men, respectively, 28.8% and 42.7% (p < 0.05). CONCLUSION: Comparative analysis of indicators of the level, structure and dynamics of mortality from diseases of the circulatory system in population of the Voronezh region for 2010–2019 allowed revealing a stable positive trend of a decrease of mortality rate from diseases of the circulatory system.

The effect of Indian Ocean warming on the Indian Monsoon: An atmospheric model study

The results from an atmospheric modeling study using the Florida State University Global Spectral Model indicate that, in years such as 1997 when the Indian Ocean SSTs are large, the Indian monsoon exhibits a typical behaviour. During that year, an extended shift of the tropical convergence zone towards the north played a role in the regional Hadley cell anomalies. The local warm boundary conditions in the northwestern Indian Ocean aided the high rainfall anomaly in Western India during the model simulations. The upper level structure, exhibited in terms of the global velocity potential is slightly shifted east for 1997, but with the correct sign. This structure shows regions of convergence over Indonesia where severe drought had occurred. The performance of the model rainfall over the equatorial Indian Ocean was uncanny for most seasons studied. Overall, the model performed best over the oceanic regions.

Jenis Dan Struktur Tropik Level Ikan Di Danau Tempe Kabupaten Soppeng Propinsi Sulawesi Selatan

Penelitian berjudul Jenis dan Struktur Trofik Level Ikan di Danau Tempe Kabupaten Soppeng Propinsi Sulawesi Selatan yang dilakukan selama 4 bulan penelitian (Februari, maret, April dan Juni) tahun 2017, bertujuan untuk mengetahui transfer energy di perairan Danau tempe berjalan sesuai dengan sistem jejaring makanan dan manfaat penelitian ini untuk pengelolaan dan pemanfaatan sumber daya ikan yang optimal dan berkelanjutan diperairan Danau Tempe. Hasil penelitian menujukkan bahwa struktur trifik level Beberapa ikan yang tertangkap di perairan Danau Tempe adalah minimum 2 dan maksimum berfarisasi menurut jenis ikan dan waktu pengamatan. Disimpulkan bahwa sumberdaya alam diperairan danau tempe berupa fitoplankton dan zooplankton sebagai produser primer dan consumer primer masih mendukung untuk tingkatan trofik diatasnya yaitu ikan South Sulawesi, which was conducted for 4 months of research (February, March, April and June) in 2017, aims to determine the transfer of energy in the waters of Lake Tempe runs according to the food network system and the benefits of this research for optimal and sustainable management and utilization of fish resources. in the waters of Lake Tempe. The results showed that the trific level structure of some fish caught in the waters of Lake Tempe was a minimum of 2 and a maximum of varying according to the type of fish and the time of observation. It was concluded that the natural resources in the waters of Lake Tempe in the form of phytoplankton and zooplankton as primary producers and primary consumers still support the higher trophic levels, namely fish.

Assessing College Students’ Social and Emotional Strengths: A Cross-Cultural Comparison from Mexico, United States, and Spain

<p style="text-align:justify">Endeavors supporting college students’ positive psychosocial development are gaining attention and investment in various countries and social contexts. Higher education experiences provide new academic, social, and vocational advancement opportunities at a critical developmental stage. However, higher education can also cause distress due to the challenges and stressors present during this new stage of increased independence. The Social Emotional Health Survey-Higher Education (SEHS-HE) assesses the core psychosocial strengths of youths transitioning from secondary schools into higher education institutions (IHE) to aid campus student support services. The present study sought to extend the SEHS-HE research by examining its application with samples from Mexico (n = 4,207), United States (n = 1,638), and Spain (n = 1,734), college students. Confirmatory factor analyses investigated the hypothesized SEHS-HE higher-order factor model. The Mexico sample returned an acceptable model fit, but the USA and Spain samples had a suboptimal fit; hence, we explored alternative models. A two-level structure had full invariance for all three samples. This study extends the current scholarship on the conceptual model and psychometric properties of SEHS-HE. The discussion focuses on implications for future research to enhance SEHS-HE in national and cross-national research and practice.</p>