When Three Trees Go to War by van Iersel, Leo, Jones, Mark, Weller, Mathias

“…Concretely, we prove that, for each ε > 0, there is some n ∈ N such that three n-leaf caterpillar trees can be constructed in such a way that any network displaying these caterpillars contains at least (3 /2 − ε)n reticulations. The case of three trees is interesting since it is the easiest case that cannot be equivalently formulated in terms of agreement forests. …”
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Is COVID-19 pandemic associated with sadness? A prepandemic and postpandemic comparison by Samuel Carvalho Dumith, Elizabet Saes-Silva, Fernanda de Oliveira Meller, Antônio Augusto Schäfer, Micaela Rabelo Quadra, Lauro Miranda Demenech

“…The exposure variables were infection by the coronavirus SARS-COV-19, contact with someone infected by COVID-19, presence of any symptoms of COVID-19, remote work after the pandemic, social distancing, infodemic behavior, and fear of COVID-19. …”
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GOLD POTENTIAL OF THE UPPER DEVONIAN BASAL CONGLOMERATES OF THE KANIN PENINSULA (NENETS AUTONOMOUS DISTRICT, RUSSIA) by M.A. Pavlova, D.A. Varlamov, S.M. Snigirevsky, D.V. Zarkhidze, S.V. Petrov, M.A. Rassomakhin

“…Native gold is mainly characterized by a heterogeneous composition and contains Ag, Cu and Hg. The poorly rounded native gold grains, the absence of supergene rims and preservation of mineral inclusions in the margins indicate its proximal primary source. …”
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Comparative Analysis of the Flavonoid Characteristics of Camellia oleifera Flowers in Different Plantations in Guizhou, China by Yurui Hao, Guandi He, Sanwei Yang, Zhannan Yang, Wenxuan Quan

“…There were significant differences in total flavonoid content among the different plantations (P < 0.05), with Tianzhu County having the highest total flavonoid content (average value of 13.60 mg/g) and Liping County having the lowest total flavonoid content (average value of 2.39 mg/g). …”
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Relationship Between Lumbar Locked Rotation, Trunk Rotation During Pitching, and Pitch Velocity in High School Baseball Players by Shun Okamura, Kai Iida

“…The purpose of this study was to investigate the relationship between the range of thoracic spine rotation measured using the lumbar locked rotation test (LLR-t), hip-shoulder separation (H/S) and thoracic rotation angle at stride foot contact (SFC), and ball velocity. # Study design Descriptive laboratory study…”
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The relationship between vitamin E and C intake with total activity of erythrocytes and breast milk superoxide dismutase in lactating mothers by Ninik Mudjihartini, Diyah Eka Andayani, Sheira Taflah Putri Handana

“… Background: Human milk contains many components, one of them is superoxide dismutase (SOD). …”
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Evaluation and testing of polymethylmetacrylic (PMMA) bone cements with admixed Amphotericin B by Florian A. Frank, Barbara Krampitz, Julia Steiner, Rainer Strathausen, Mario Morgenstern, Martin Clauss, Klaus-Dieter Kühn

“…Sterile Amphotericin B powder for preparing an infusion solution contains only small amounts of pure drug. In vivo polymicrobial Candida-infections with bacterial co-infection were successfully treated using the combination of Copal cements with added Amphotericin B without systemic nephrotoxic impact. …”
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Use of Population Weighted Density Index for Coronavirus Spread in the United States by Huseyin Yuce, Hannah Stauss, Adrienne Persad

“…**Results:** Using U.S. county-level data, we calculated the elasticity of COVID-19 spread with respect to population-weighted density to be 0.085 after controlling for other factors. …”
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Diseño de un medidor didáctico de consumo de energía eléctrica para uso residencial by Alan Cuenca Sánchez, Pablo Llumiquinga Eras

“…Su implementación en instituciones educativas no solo facilita la comprensión de conceptos técnicos, sino que también resulta valiosa en talleres prácticos de vinculación social enfocados en instalaciones eléctricas residenciales. El sistema consta de una batería, un módulo ESP32 para adquirir datos de voltaje y corriente, una pantalla LCD conectada por SPI para visualización local y un módulo wifi que transmite los datos a una base de datos en la nube. …”
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Planificación del flujo de caja de proyectos de construcción basada en BIM y dinámica de sistemas by Karen Milady Castañeda-Parra, Omar Giovanny Sánchez-Rivera, Hernán Porras-Díaz

“…Considerando esta necesidad, en este artículo se propone un nuevo esquema metodológico para la planificación del flujo de caja de proyectos de construcción, el cual está basado en la integración de modelos del proceso constructivo BIM 5D (Building Information Modeling 5D), y dinámica de sistemas.El esquema que es propuesto consta de seis etapas principales: 1) modelo BIM 3D, cantidades y rendimientos, 2) estructura desglosada del trabajo, 3) estimación de costos, 4) modelado y simulación digital BIM 5D, 5) análisis del flujo de caja, y 6) implementación de la alternativa. …”
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Microstructure and mechanical property degradation mechanism of Cu–Cr–Zr rail after extreme electromagnetic launches by Chengcheng Li, Weihao Li, Shiyu Hao, Huantong Shi, Li Chen, Chuncai Kong, Feng Jiang, Xingwen Li

“…The results reveal significant decreases in the dislocation density and the precipitate size but not the content, and the almost unchanged grain size near the contact surface after the 12 shots. The hardness and yield strength of the rail surface decrease, especially in the middle section. …”
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Multiscale Physics of Atomic Nuclei from First Principles by Z. H. Sun, A. Ekström, C. Forssén, G. Hagen, G. R. Jansen, T. Papenbrock

“…By developing reduced-order models for symmetry-projected states, we perform a global sensitivity analysis and find that the subleading singlet S-wave contact and a pion-nucleon coupling strongly impact nuclear deformation in chiral effective field theory. …”
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CHALLENGES OF LOCALIZATION OF THE POLICY FRAMEWORK AND NATIONAL ACTION PLAN FOR PREVENTING VIOLENT EXTREMISM IN PLATEAU STATE, NIGERIA by BEJI GOWAL BEKUMA, JOHN UKAWUILULU

“…But essentially, it contains a strategic vision Nigeria holds for preventing violent extremism, which is a product of research, global practices and knowledge of the root causes of violent extremism. …”
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Colonization as a Factor of Russian History in the Understanding of the Scholars of the 19th – early 20th Centuries by Nina S. Tsintsadze

“…Pre-revolutionary scholars noted that the expansion of the country was facilitated by the large capacity of the space of the north-eastern part of the European continent. …”
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ABOUT THE SOURCE OF THE KURSK MAGNETIC ANOMALY by V.V. Gordienko, V.M. Tarasov

“…The article contains the results of the study of the Kursk magnetic anomaly, which has attracted the attention of many geophysicists for decades, including in the form of field disturbances recorded by the equipment of artificial Earth satellites. …”
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Pengaruh Variasi Latihan Core Terhadap Kemampuan Balance dan Forehand Drive Atlet Putra by M. Wahyu Hidayah NST, David Siahaan

“…It addresses the issue of inadequate balance when chasing the ball, leading to hitting errors such as balls getting caught in the net, improper racket-ball contact, lack of control, and shots going out of bounds. …”
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Spirulina platensis effect on oxidative stress of rat’s offspring brain exposed to cigarette smoke during pregnancy and lactation by Kenny Cantika Abadi, Febriana Catur Iswanti, Sri Widia A Jusman, Fadilah Fadilah, Ani Retno Prijanti

“… Background: Maternal exposure to cigarette smoke during pregnancy and lactation might harmful for the fetus. The smoke contains many free radicals that could be eliminated by antioxidant. …”
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Characterization of thermo-responsive shape memory bio-based thermoplastic polyurethane (SMTPU) for 3D/4D printing applications by Yang Sook Jung, Jaehyeung Park, Sunhee Lee, Eun Joo Shin

“…The resulting SMTPU, which contains bio-polyol in the soft segment, along with a chain extender and isocyanate (4,4-methylene diphenyl diisocyanate, MDI), demonstrates excellent shape recoverability even after significant deformation. …”
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How to Handle Data Imbalance and Feature Selection Problems in CNN-Based Stock Price Forecasting by Zinnet Duygu Aksehir, Erdal Kilic

“…Stock market forecasting is a time series problem that aims to predict possible future prices or directions of an index/stock. The stock data contains high uncertainty and is influenced by too many factors; hence it isn&#x2019;t easy to achieve the goal by traditional time series methods. …”
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Experimental Study on Separated-flow Transition on a High-lift Blade by S. Yang, F. Tian, C. Teng, B. Xu

“…The non-modal instability contains mainly low-frequency fluctuating energy, which impacts the disturbance energy spectrum within the separated shear layer. …”
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