The correlation of region-specific lifestyle and subjective perception of oral health with oral health-related quality of life among Tibetan early adolescents in Ganzi: a cross-sec... by Shaoying Duan, Renjie Tang, Chenchen Zhang, Qianqian Su, Huiyu Yang, He Cai, Tao Hu

“…In relation to region-specific lifestyle, the factors associated with poorer OHRQoL were residence altitude of 3,300 m (compared to 1,400 m), buttered tea consumption by adolescents or mother, and being a boarding student. …”
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Analysis of Traveling Wave and Combined Site Effect of Long-Span Upper-Bearing Concrete-Filled Steel Tubular Arch Bridge by Zite Li, Genhui Wang, Jiang Fan, Yue Jian, Yongliang Zhang

“…In order to study the traveling wave effect and combined site effect of long-span steel tube concrete-filled arch bridge, a 400-m span bridge of the same type is taken as an example, and a large-mass time-history analysis method with multipoint input of recorded seismic waves is used. …”
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The Deep Structure of the Kimberlite Pipe Volchya in the Arkhangelsk Diamond Province and Controlling Faults Based on Passive Seismic and Radiological Methods (Northwest Russia) by Konstantin Danilov, Evgeny Yakovlev, Andrey Puchkov, Vladimir Bykov, Alexander Katorin

“…The controlling faults were found to be oriented in a southwesterly to northwesterly direction and to exhibit a contrasting narrow vertical structure at depths greater than 400 m. Further identification of control structures by the proposed set of methods can increase the efficiency of diamond prospecting.…”
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Woody Species Composition, Structure, and Soil Seed Bank of the Degraded Parts of the Gera Moist Afromontane Forest, Southwestern Ethiopia by Dereje Egeta, Giche Yadesa, Abeje Eshete, Hailu Belay, Urge Charu, Tensay Teshome

“…Twenty representative sample square plots, each measuring 400 m2 for trees and shrubs, were established. Inside the main plots, five subplots measuring 9 m2 were assigned for regeneration data collection. …”
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Woody species diversity, structure and community distribution along environmental gradients of Seqela Dry Afromontane forest in Northwestern Ethiopia. by Liyew Birhanu, Getaneh Moges, Nigussie Amsalu, Heiko Balzter

“…Systematic sampling was used to collect vegetation and environmental data from 52 (20 m x 20 m) (400 m2) plots. Density, Diameter at Breast Height (DBH), basal area, frequency, and importance value index (IVI) of woody species were computed to characterize the vegetation structure of the forest. …”
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Maki ve Garig Topluluklarının Türkiye’deki Yayılış Alanları ve Ekolojik Özelliklerinin İncelenmesi by Baştürk Kaya, Caner Aladağ

“…Maki bitkileri yatay yönde Akdeniz iklim etkisinin görüldüğü iç kesimlere kadar sokulabilirken, dikey yönde Akdeniz kıyılarında 700-800 m’lere, Ege kıyılarında 400-600 m’ye ve Marmara kıyılarında 300-400 m’ye kadar çıkabilmektedir. Maki bitkileri içerisinde Fabaceace, Lamiaceae ve Ericaceae familyalarına ait türlerin çoğunlukta olduğu görülür. …”
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Woody Species Diversity and Structure of Protected Woodlands Adjacent to Free Grazing Land Woodland at Dugda Woreda, Oromia, Ethiopia by Tsegu Ereso Denbel

“…The vegetation data were collected from 30 plots from each woodland with a size of 900 m2 (30 m × 300 m) for tree/shrub, while subplots of size 400 m2 (20 m × 20 m) for sapling, respectively, were established in the main plots. …”
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Optimization simulation of fracturing parameters under different soft/hard coal + surrounding rocks in Yuwu Mine by Shaowei HAO, Jingshuo ZHANG, Ruijie CHEN, Yafei JING

“…A cyclic progressive sand-carrying fluid technique (using “pre-liquid - carrying sand liquid”) should be employed to increase the fracturing range and length of propped fractures; the total liquid volume is greater than 1 400 m3, and the average sand ratio of the first and second times is about 8% and 12%, respectively; for the combination of soft roof and hard coal, selective perforation and fracturing of certain coal layers in the roof and floor is recommended, with an optimal pumping rate of around 10 m3/min. …”
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Sensitivity of CO2 and CH4 Annual Cycles to Different Meteorological Variables at a Rural Site in Northern Spain by Isidro A. Pérez, M. Luisa Sánchez, M. Ángeles García, Nuria Pardo

“…The influence of these variables reached values around 6.3 and 0.023 ppm for CO2 and CH4 average concentrations, respectively, during the day when the boundary layer was below 400 m. The main conclusion of this study is that the influence of meteorological variables should not be ignored. …”
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Simulation of Material and Heat Balance of 150 t AOD Melting 430 Stainless Steel under Different Charge Conditions by Lu　Xiaohui, Kang　Congpeng, Chen　Hongzhi, Xu　Yongbin

“…Under this process condition， the consumption of ferrosilicon and lime reached 39.3 kg/t and 97.7 kg/t respectively， the continuous addition time of high carbon ferrochromium was about 12 min， the feeding rate was 4 t/min， and the maximum oxygen supply intensity at this time was 400 m3·min-1. By coordinating the relationship between oxygen supply and feeding rate， the temperature in the furnace was relatively stable； In the process of using dephosphorized molten iron + high chromium molten iron as furnace charge， the consumption of ferrosilicon and lime was 25.7 kg/t and 58.9 kg/t respectively. …”
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Acute Genetic Damage Induced by Ethanol and Corticosterone Seems to Modulate Hippocampal Astrocyte Signaling by Ana Laura Reyes-Ábalos, Magdalena Álvarez-Zabaleta, Silvia Olivera-Bravo, María Vittoria Di Tomaso

“…By exposing murine hippocampal astrocytes to 400 mM ethanol (EtOH) and/or 1 μM corticosterone (CTS) for 1 h, we tested whether the induced DNA damage and DDR could elicit significant changes in NTs and surface-attached EVs. …”
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Microbial methanogenesis fueled by freshwater infiltration and oil biodegradation in the Siljan impact structure, Sweden by Femke van Dam, Riikka Kietäväinen, George Westmeijer, Manuel Reinhardt, Shuhei Ono, Mark Dopson, Marcelo Ketzer, Jennifer C. McIntosh, Henrik Drake

“…In this study, gas composition, hydrochemistry, oil organic geochemistry, and microbial community analyses are reported in 400 m deep fractures of the Siljan impact structure. …”
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Study on the Atomization and Dust-Reduction Performance of a New Type of External Pneumatic Vortex Fog Curtain Dust Removal Device in Fully Mechanized Excavation Face by Deji Jing, Rina An, Jingxu Chen, Shaocheng Ge, Liying Sun

“…It is found that the new type of external pneumatic vortex fog curtain dust removal device is relatively stable when the air volume at the pressure outlet is less than 400 m3/min. The dust-reduction efficiency of the new type of external pneumatic vortex fog curtain dust removal device was investigated through the dust-reduction experiment, and it is found that the new type of external pneumatic vortex fog curtain dust removal device had better dust removal performance under the condition that the ventilation conditions did not interfere with the integrity of the vortex fog curtain.…”
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Dust Deposition and Associated Heavy Metal Contamination in the Neighborhood of a Cement Production Plant at Konongo, Ghana by Prince Baffour Awuah, Albert Amatey Adjaottor, Emmanuel Gikunoo, Emmanuel Kwesi Arthur, Frank Ofori Agyemang, Douglas Siaw Baah

“…Topsoils (0-10 cm) were sampled at the four geographical axes of the factory within a radius of 400 m, while at the same time, about 500 g of cement was sampled with a hand trowel. …”
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Ballistic performance of lightweight ceramic-metal composite armour plates under blunt projectile impact by Hasan Aftab Saeed, Yasser Riaz Awan, Hamza Saleem Khan, Abdur Rehman Mazhar, Shahid Aziz, Dong-Won Jung

“…In the present work, nonlinear finite element analysis is used to find the ballistic performance of various combinations of composite bi-layered armours of Weldox 460 E, AA7075-T6, and SiC impacted by blunt projectiles with velocities ranging from 100 - 400 m/s. The material models employed to mimic material behaviour that accommodate high strain rates, plastic deformations and the shockwave phenomenon associated with ballistic impacts are JH1,  JC, and SCG. …”
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Investigation on Nonuniform Extension of Hydraulic Fracture in Shale Gas Formation by Zhiheng Zhao, Youcheng Zheng, Yili Kang, Bo Zeng, Yi Song

“…In Changning shale block, multicluster hydraulic fracturing with 4-6 clusters in a stage has been employed in 300-400 m well spacing, and diversion technology, limited-entry perforation (36-48 perforations per stage), high flow rate (16 m3/min), and small-sized ceramic proppant (100 mesh) are used to get better shale gas production. …”
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Effects of 6-week sprint interval training compared to traditional training on the running performance of distance runners: a randomized controlled trail by Kai Jin, Mengbiao Cai, Yongqian Zhang, Bin Wu, Yi Yang

“…Measurements for VO2max, O2 cost, time to exhaustion (TTE), and running times for 100, 400, and 3000 m were taken before and after the intervention.ResultsThe results indicated that the IT group showed significant improvements in TTE and running performance across 100, 400, and 3000 m (all P < 0.01), while the CT group only demonstrated improvements in 400 m time (P < 0.01). The IT group exhibited superior 3000 m performance compared to the CT group (P < 0.01). …”
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海南五指山国家级自然保护区鸟兽多样性研究 by 李佳灵 1, 2 #周铜磊 3 #黄翔 3 黄良鸿 2 刘辉 3

“…动物在400—800 m海拔梯度的拍摄率最高（CR=23.21%），在0—400 m海拔的拍摄率最低（CR=2.73%）。此外，红外相机在保护区内拍摄到人和家畜活动的照片，说明保护区受人类干扰的形势严重，应重视并加强对保护区的管理工作。…”
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Assessment of scenarios for intensifying pasture management and grazing in fragile micro-watersheds of high Andean mountains by Jorge Eduardo Grijalva Olmedo, Paola Mercedes Palate Moreta, Roy Roger Vera-Vélez, Raúl Armando Ramos Veintimilla, Jean-François Tourrand, Arnulfo Portilla Narváez

“…The objective of this research was to evaluate two scenarios for intensifying pastures based on perennial ryegrass (Lolium perenne) and white clover (Trifolium repens), used at rest periods of 45- and 60 days in sites between 3,000-3,400 m a.s.l. used for grazing sheep and cows. These scenarios were compared with a natural grassland based on a plant community composed of Stipa ichu, Holcus lanatus, Rumex acetocella, and Paspalum sp., used in a traditional system with rest periods of 60-75 days in sites between 3,500-3,700 m a.s.l. in the Chimborazo River micro-watershed. …”
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Inventario de garrapatas en la Reserva de Biosfera del Noroeste del Perú by Andrés Y. Silva Elizalde, Pedro Saul Castillo Carrillo

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