Finite Volume Method for a Time-Dependent Convection-Diffusion-Reaction Equation with Small Parameters by Uzair Ahmed, Daoud Suleiman Mashat, Dalal Adnan Maturi

“…Convection, diffusion, and reaction mechanisms are characteristics of transient mass-transfer phenomena that occur in natural and industrial systems. In this article, we contemplate a passive scalar transport governed by the convection-diffusion-reaction (CDR) equation in 2D flow. …”
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Un secteur agricole sous-estimé dans la lutte face au changement climatique ? Le cas de la région industrielle du Grande ABC by Alexia Andreadakis

“…Between dense urban, industrialized and natural coveted spaces, this territory faces many environmental weaknesses. …”
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Rural Demographic Problem Areas in Poland by Andrzej Jakubowski, Urszula Bronisz

“…The study covered rural areas distinguished on the basis of the classification of the European Commission DEGURBA The analysis enabled to identify depopulation areas, areas with disrupted population reproduction (ie areas of permanent natural decline), areas of permanent outflow of population, areas with impaired population structure by age and areas with disrupted population structure by sex in the group of people of marriage age (20-34 years). …”
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Study on Status and Problem Research of Harmonic Gear Drive by Xiang Zhenlin, Li Ting, Yang Lin, Shang Yingrong

“…On this basis，suggestions are given on the research direction of harmonic reducer that should be paid attention to in the future，that is，the research of tooth profile，the analysis of material microstructure，the research of processing technology，the establishment of theoretical system，the problem of large natural frequency fluctuation，the accurate analysis and calculation of tooth meshing force，the influencing factors of transmission accuracy，etc.…”
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Analysis of Total Flavonoid and Antioxidant Activity of Black Turmeric (Curcuma caesia) using ABTS (2,2-azinobis-3-Ethylbenzothiazoline-6-Sulfonic Acid) Method by Molesy Fransina Tanesib, Kholif Sholehah Indra Kurniasih, Arde Toga Nugraha

“…This means it's an incredibly potent natural antioxidant. Experts believe that black turmeric could have some amazing health benefits, such as protecting against oxidative stress and reducing inflammation. …”
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Polysaccharides from sea buckthorn — Ultrasound-assisted enzymatic extraction, purification, structural characterization, and antioxidant activity analysis by Jing Wen, Ruijie Huang, Shi Li, Lin Jiang, Liheng Shao, Qin Zhang, Chunhui Shan

“…This study serves as a reference for the development and application of natural antioxidants and provides a theoretical foundation for the environmentally friendly and effective extraction of SBP.…”
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Symptoms of Nitrogen and Iron Deficiency in Luffa by Qiansheng Li, Marina Gluck, Yanlin Wang, Wendy Mussoline, Qingren Wang, Yuncong Li, Guodong Liu

“…The mature fruit has strong fibrous insides, which can be used as natural porous fiber (Siqueira, Bras, and Dufresne 2010; Sivakandhan et al. 2020) for dishwashing or shower scrubbing. …”
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Tiempo, arte y sociedad a finales del siglo XVIII neogranadino. Los comienzos tardíos de la modernidad ilustrada by Renán Silva

“…El presente texto señala un conjunto de hechos que indica el proceso en marcha de separación cultural entre los nuevos hombres de letras, los llamados “criollos ilustrados” –aficionados a la historia natural–, y el conjunto de la sociedad: tanto los grupos sociales dominantes defensores de la tradición, como la sociedad popular –urbana y rural–, en el Virreinato de Nueva Granada a finales del siglo XVIII, e intenta mostrar las condiciones de ese proceso de “distancia cultural creciente”, poniendo de presente que tal proceso, producto de la propia evolución cultural, no constituye ninguna rareza y ha estado presente en muchas otras sociedades y épocas, y debe ser reconstruido y analizado más allá de todo juicio de valor.…”
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Structural Dynamic Analysis of Endogenous Vibration of Large-span Plant at Datengxia Hydro Project by LI Shuai, XIE Ji'an

“…The vibration energy generated by the internal source vibration during the operation of the power plant room is very large,which will endanger the safety of the building and the health of the operating personnel when serious.So the endogenous vibration characteristics of the plant as a whole and important individual structures were carried out based on finite element calculation theory,and the vibration response of the power plant house under unit vibration load and flow channel pulsation pressure was calculated.The results show that the natural vibration frequency of the whole plant and the important single structure and the main vibration source of the unit have enough stagger,under the vibration load of the unit or the pulsating pressure of the flow passage.The vibration displacement,velocity and acceleration response amplitudes of the workshop structure meet the control standard under the vibration load of the unit or the pulsating pressure of the flow passage.In summary,the effect of endogenous vibration loads at different frequencies in the Datengxia Hydro Project will not adversely affect the safe operation of the powerhouse.…”
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NK Cell and CD4+FoxP3+ Regulatory T Cell Based Therapies for Hematopoietic Stem Cell Engraftment by Antonio Pierini, Maite Alvarez, Robert S. Negrin

“…Here, we analyzed the role of host T and natural killer (NK) cells in the rejection of donor HSC engraftment as well as the impact of donor regulatory T cells (Treg) and NK cells on HSC engraftment. …”
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Disaster Tips for People with Disabilities by Carolyn S. Wilken

“… Natural disasters such as tornadoes, floods, and hurricanes create special challenges for people with disabilities, their caregivers, and their families. …”
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Visual–Inertial Autonomous UAV Navigation in Complex Illumination and Highly Cluttered Under-Canopy Environments by Leyang Zhao, Weixi Wang, Qizhi He, Li Yan, Xiaoming Li

“…The objective is to enhance the reliability and safety of UAV operations beneath the forest canopy, thereby establishing a technical foundation for surveying vertically stratified natural resources.…”
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Northern Argentinian Andes: A Factory of Energy Territories by Silvina Cecilia Carrizo, Guillermina Jacinto

“…Large-scale photovoltaic power plants in high mountain plains, and lithium mines in salt flats introduce profound impacts on local communities, and on landscapes of high cultural and natural value. The paper aims to explore the materialities of the energy transition in Andean spaces, examining experiences in progress in the province of Jujuy. …”
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A Framework of the Meshless Method for Topology Optimization Using the Smooth-Edged Material Distribution for Optimizing Topology Method by Jingbo Huang, Kai Long, Yutang Chen, Rongrong Geng, Ayesha Saeed, Hui Zhang, Tao Tao

“…Density variables based on nodal or Gaussian points are naturally incorporated in meshless topology optimization approaches, pursuing distinct topological layouts with solid and void solutions. …”
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Iron-Catalyzed Cross-Dehydrogenative Coupling by Haiyan Diao, Yujia Chen, Feng Liu

“…This technique uses iron—a naturally abundant, inexpensive, and environmentally benign transition metal—as a catalyst to facilitate the coupling of two unfunctionalized C-H bonds. …”
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Interannual Variation in Root Production in Grasslands Affected by Artificially Modified Amount of Rainfall by Karel Fiala, Ivan Tůma, Petr Holub

“…A field experiment based on rainout shelters and gravity irrigation simulated three climate scenarios: rainfall reduced by 50% (dry), rainfall increased by 50% (wet), and the natural rainfall of the current growing season (ambient). …”
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Photocatalytic Degradation of Organic Dyes by H4SiW6Mo6O40/SiO2 Sensitized by H2O2 by Li Yu, Yongkui Huang, Yun Yang, Yulin Xu, Guohong Wang, Shuijin Yang

“…H4SiW6Mo6O40/SiO2 was sensitized by H2O2 solution that significantly improved its catalytic activity under simulated natural light. Degradation of basic fuchsin was used as a probe reaction to explore the influencing factors on the photodegradation reaction. …”
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Des zones humides pas si sauvages que cela : apport des données historiques et paléo-environnementales à la réflexion sur la gestion des paysages de la chaîne des Puys (France)... by Christèle Ballut, Yves Michelin

“…This double aspect, both natural and cultural, makes these sites as a good model for conceiving a management plan that conciliate the Outstanding Universal Value (OUV) based on aesthetical and geological criteria with the local ecological and cultural value that come from a succession of transformations or abandonments during the time. …”
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Induced Pluripotent Stem Cells and Outer Retinal Disease by Jin Yang, Bingcui Cai, Patrick Glencer, Zhiqing Li, Xiaomin Zhang, Xiaorong Li

“…Having two eyes makes perfect natural control possible after a single eye receives gene or stem cell therapy. …”
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Challenges in Endobronchial Tuberculosis: From Diagnosis to Management by Surender Kashyap, Anjali Solanki

“…Evolution of the disease is also unpredictable with frequent progression to bronchostenosis, therefore requiring regular follow-up and early intervention to halt the natural course. This review article elaborates various aspects of the disease with specific focus on diagnostic dilemma and recent advances in interventional bronchoscopy. …”
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