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Journal articles on the topic 'Plateau de Mbé'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Vennetier, Pierre. "Urbanisation et production agricole : les paysans pionniers du plateau de Mbé (Congo)." Cahiers d'outre-mer 41, no. 163 (1988): 303–8. http://dx.doi.org/10.3406/caoum.1988.3273.

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2

MABA, NGOULOUBI Prince Loïque. "ACCÈS A L'EAU ET PRODUCTION MARAÎCHÈRE SUR LE PLATEAU DE MBÉ EN RÉPUBLIQUE DU CONGO." Journal de Géographie Rurale Appliquée et Développement (J_GRAD) 5, no. 2 (2025): 266–79. https://doi.org/10.5281/zenodo.14677410.

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Le maraîchage, activité génératrice de revenus complémentaires, est un bon moyen d’améliorer la nutrition des populationsen assurant une autosuffisance alimentaire, et une promotion des activités sociales et communautaires. Cependant, cetteactivité est confrontée à des problèmes d’accès à l’eau. La présente étude analyse les problèmes d’accès à l’eau d’arrosagepour une production maraîchère ainsi que la caractérisat

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3

Obami-Ondon, Harmel, Médard Ngouala Mabonzo, Urbain Gampio Mbilou, and Bernard Mabiala. "Etude de la variabilité saisonnière des précipitations sur le plateau de Mbé au Pool-Nord (Congo-Brazzaville) : impacts sur les eaux de surface et souterraines." Proceedings of the International Association of Hydrological Sciences 384 (November 16, 2021): 233–39. http://dx.doi.org/10.5194/piahs-384-233-2021.

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Abstract. Cette étude porte sur l'impact de la variabilité saisonnière des précipitations sur les eaux du Plateau de Mbé. 120 échantillons d'eau ont été prélevés dans huit (08) points d'eau (1 puits, 4 forages et 3 rivières) entre novembre 2017 et août 2018. L'analysés au laboratoire de ces échantillons, permettent de caractériser les éléments physico-chimiques des eaux. Ces résultats sont traités à partir d'une méthode hydrochimie, en utilisant les diagrammes : de Piper, de Schoeller Berkaloff, de Stiff, et de Wilcox. Les données traitées montrent que les valeurs obtenues après les analyses d

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4

Pan, Zhandong, Xuemei Cai, Liqun Cai, et al. "Soil and Microbial Biomass Response to Land-Use Changes in the Loess Plateau." Sustainability 16, no. 23 (2024): 10496. http://dx.doi.org/10.3390/su162310496.

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Vegetation restoration is a critical strategy for addressing ecosystem degradation globally. However, understanding the specific impacts of land-use changes, particularly the conversion of farmland to forestland and grassland, on soil nutrients and microbial biomass in the Loess Plateau remains limited and requires further evaluation. Therefore, this study was conducted to explore how these conversions affect soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP), and microbial biomass components under various land-use patterns. We studied the SOC, TN, TP, soil microbial biomass

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5

Yan, Ruyu, Fengyun Xiang, Yaqiong Li, Xuxun Li, Yuhao Zhang, and Jifu Li. "Study on Soil Fertility Characteristics of Walnut Orchards with Different Parent Materials and Soil Types in Gyaca County, Tibet." Agronomy 14, no. 7 (2024): 1496. http://dx.doi.org/10.3390/agronomy14071496.

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Walnut trees on the Tibetan Plateau have sustainable and nutritious characteristics. They grow naturally without the use of any chemical fertilizers and pesticides. Therefore, the soil fertility of walnut orchards is a key factor influencing walnut yield and quality. This experiment measured and analyzed the basic soil nutrient content, microbial biomass carbon (MBC), nitrogen (MBN), phosphorus (MBP), and leaf nutrient indicators in five types of representative walnut orchard soil parent materials in Gyaca County to clarify the fertility characteristics of different soil types and their correl

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Liu, Bing Ru. "Relationship between Reaumuria soongorica Community Structure and Soil Quality of the Semiarid Loess Plateau, NW of China." Advanced Materials Research 183-185 (January 2011): 310–13. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.310.

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Reaumuria soongorica is the main dominant and constructive species of the desert shrub vegetation in the northwestern of China. The informations about changes in soil quality and vegetation structure togethor are available, which can provide valuable insights into the development of sustainable ecological systems that optimize production and maintain high environmental quality, but the variety of the plant community structure associate with dynamics of soil nutrient and microbial biomass are little known. In this study, five coverage levels of R. soongorica community were determined, while soi

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7

Xu, Tingting, Rong Zhang, Yang Zhang, Xiaojun Wang, Zhengpeng Li, and Yajun Gao. "Long-Term Effects of Potassium Fertilization and Wheat Straw Return on Cropland Soil Fertility and Microorganisms in the Qinghai–Tibet Plateau." Agronomy 15, no. 3 (2025): 742. https://doi.org/10.3390/agronomy15030742.

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Imbalanced fertilization and inadequate of straw return have led to soil potassium (K) depletion and fertility decline in croplands of the Qinghai–Tibet Plateau. However, how these changes affect soil microbial communities remains unclear. We analyzed soil properties, microbial biomass carbon and nitrogen, enzyme activities, and microbial communities in a long-term field experiment initiated in 1992 with K fertilization and varying wheat straw return amounts. Long-term K application significantly reduced microbial biomass carbon (MBC) and bacterial species richness and inhibited positive bacte

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8

Tang, Liuyan, Lin Chen, and Zhen’an Yang. "Artificial Measures Are Not Necessarily Better Than Natural Recovery for the Extremely Degraded Alpine Meadow: The Results of Simulated Degradation Restoration After Three Years." Journal of Biobased Materials and Bioenergy 15, no. 2 (2021): 224–30. http://dx.doi.org/10.1166/jbmb.2021.2041.

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Natural and artificial restoration measures are widely used to restore degraded ecosystems, such as degraded alpine meadow. The objective of this research was to evaluate the advantages and disadvantages of natural and artificial measures for extremely degraded alpine meadows. We removed the surface soil (0–10 cm) of the alpine meadow to simulate the extremely degraded “black soil beach,” and set artificial measures (planting Festuca sinensis (E) and Elymus sibircus L. cv. chuan-cao No. 1 (F)) and natural recovery (N) (without any artificial auxiliary measures) in the northeastern part of the

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9

Kong, Hui, Liangyan Yang, Dan Wu, Juan Li, and Shenglan Ye. "Ditch control and land reclamation promote vegetation recovery in Loess Plateau." Mathematical Biosciences and Engineering 21, no. 3 (2024): 3784–97. http://dx.doi.org/10.3934/mbe.2024168.

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<abstract> <p>This study aimed to assess the impact of land consolidation projects and climate change on changes in vegetation in the Loess Plateau during 2012–2021. The study also explored the impacts of human activities and climate change on the ecological quality of the Loess Plateau during this period. The spatial and temporal normalized difference combined meteorological monitoring data, project data, and normalized difference vegetation index (NDVI) data that was used to create the vegetation index dataset spanning from 2012–2021. The study discussed and assessed the effectiv

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10

Xu, Bo, Jinniu Wang, Ning Wu, Yan Wu, and Fusun Shi. "Seasonal and interannual dynamics of soil microbial biomass and available nitrogen in an alpine meadow in the eastern part of Qinghai–Tibet Plateau, China." Biogeosciences 15, no. 2 (2018): 567–79. http://dx.doi.org/10.5194/bg-15-567-2018.

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Abstract. Soil microbial activity varies seasonally in frozen alpine soils during cold seasons and plays a crucial role in available N pool accumulation in soil. The intra- and interannual patterns of microbial and nutrient dynamics reflect the influences of changing weather factors, and thus provide important insights into the biogeochemical cycles and ecological functions of ecosystems. We documented the seasonal and interannual dynamics of soil microbial and available N in an alpine meadow in the eastern part of Qinghai–Tibet Plateau, China, between April 2011 and October 2013. Soil was col

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11

Song, Shuzhen, Kangning Xiong, and Yongkuan Chi. "Ecological Stoichiometric Characteristics of Plant–Soil–Microorganism of Grassland Ecosystems under Different Restoration Modes in the Karst Desertification Area." Agronomy 13, no. 8 (2023): 2016. http://dx.doi.org/10.3390/agronomy13082016.

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C, N and P are the key biogenic elements of terrestrial ecosystems, and their biogeochemical processes regulate nutrient cycling and play a key role in restoring degraded ecosystems. In this paper, the grassland ecosystem under artificial restoration measures (Dactylis glomerata (DG), Lolium perenne (LP), Lolium perenne + Trifolium repens (LT)), and the natural restoration measures (NG) in a typical karst plateau desertification control area of southwest China, were taken as the research object. The C, N, and P concentrations and the ecological stoichiometry of the plant–soil–microorganism sys

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12

Qi, Yuan, Lixin Wu, Yifan Ding, Yingjia Liu, Xiao Wang, and Wenfei Mao. "Microwave Brightness Temperature (MBT) Background in Bayan Har Block, Qinghai-Tibet Plateau and Its Importance in Searching for Seismic MBT Anomalies." Remote Sensing 14, no. 3 (2022): 534. http://dx.doi.org/10.3390/rs14030534.

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The abnormal behaviors of microwave brightness temperature (MBT) before and after some strong inland earthquakes have been studied for more than 15 years, but the normal features of MBT background in the investigated regions still lack essential attention. This study focused on the extremely seismically active Bayan Har block on the Qinghai-Tibet Plateau in China, and revealed the spatiotemporal variations of monthly mean background and monthly standard deviation (STD) of MBT by using data of 10.65 and 89 GHz from AMSR-2 instrument. In terms of space, the results revealed that the MBT backgrou

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13

Liu, Yang, Qianmei Chen, Zexi Wang, et al. "Nitrogen Addition Alleviates Microbial Nitrogen Limitations and Promotes Soil Respiration in a Subalpine Coniferous Forest." Forests 10, no. 11 (2019): 1038. http://dx.doi.org/10.3390/f10111038.

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Soil microbes are an important component of soil ecosystems that influence material circulation and are involved in the energy flow of ecosystems. The increase in atmospheric nitrogen (N) deposition affects all types of terrestrial ecosystems, including subalpine forests. In general, alpine and high-latitude ecosystems are N limited. Increased N deposition could therefore affect microbial activity and soil respiration. In this study, four levels of N addition, including CK (no N added), N1 (2 g m−2 a−1), N2 (5 g m−2 a−1), and N3 (10 g m−2 a−1), were carried out in a Sichuan redwood forest at t

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14

Tu, Shengwen, Xiaobo Ren, Jianying He, and Zhiliang Zhang. "Effect of the Lüders plateau on ductile fracture with MBL model." European Journal of Mechanics - A/Solids 78 (November 2019): 103840. http://dx.doi.org/10.1016/j.euromechsol.2019.103840.

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15

Etscheid, B. G., K. A. Albert, M. L. Villereal, and H. C. Palfrey. "Transduction of the bradykinin response in human fibroblasts: prolonged elevation of diacylglycerol level and its correlation with protein kinase C activation." Cell Regulation 2, no. 3 (1991): 229–39. http://dx.doi.org/10.1091/mbc.2.3.229.

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Stimulation of quiescent human fibroblasts with the peptide mitogen bradykinin (BK) led to a biphasic elevation in cellular 1,2-diacylglycerol (DAG), as estimated by either measurement of total DAG mass or [3H]arachidonate incorporation. A rapid initial transient that peaked 15 s after BK addition was followed by a decline to near basal levels then a second rise to a plateau phase during which DAG levels remained elevated for less than or equal to 45 min. The source of the initial DAG transient appeared to be primarily polyphosphoinositides as these phospholipids were rapidly hydrolyzed after

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16

Jia, Wenqing, Qiwei Quan, Wangjie Qian, et al. "Magnetic Indicator for Evaluating Cu Clustering and Hardening Effect in RPV Model Alloy." Metals 14, no. 9 (2024): 973. http://dx.doi.org/10.3390/met14090973.

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The reactor pressure vessel (RPV) is a critical barrier in nuclear power plants, but its embrittlement during service poses a significant safety challenge. This study investigated the effects of Cu-enriched clusters on the mechanical and magnetic properties of Fe-0.9 wt.%Cu model alloys through thermal aging. Using Vickers hardness tests, Magnetic Barkhausen Noise (MBN) detection, and Atom Probe Tomography (APT), the study aimed to establish a quantitative correlation between MBN signals, Vickers hardness, and Cu-enriched clusters, facilitating the non-destructive testing of RPV embrittlement.

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17

Shimada, Masakazu, Sawako Murakami, Takahisa Tanigawa, Nobuo Kanno, Yasuji Harada, and Yasushi Hara. "Comparison of patellar position and moment arm between tibial plateau leveling osteotomy and cranial closing wedge ostectomy: An ex vivo study." Open Veterinary Journal 13, no. 3 (2023): 262. http://dx.doi.org/10.5455/ovj.2023.v13.i3.2.

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Background: Tibial plateau leveling osteotomy (TPLO) and cranial closing wedge ostectomy (CCWO) are common treatments for cranial cruciate ligament disease. These two techniques mainly differ in whether the proximal tibial fragment contains the attachment site of the patellar ligament. Currently, there are no reports comparing how these techniques affect the patellofemoral joint. Aim: This ex vivo study aimed to compare the effects of TPLO and CCWO on the patellar position and moment arm in healthy Beagles. Methods: TPLO and CCWO were performed on each stifle in six cadavers of Beagles. Pre- a

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18

Abrar, Kiran. "Soil Carbon Sequestration Potential and Microbial Biomass Activity in Different Agro-eco Systems: A Comparative Study of Agricultural, Forest, Shrub and Grassland Land Uses." International Journal of Agriculture and Biology 33, no. 04 (2025): 340407. https://doi.org/10.17957/ijab/15.2379.

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The rise in atmospheric CO2 due to global temperature rise necessitates a targeted strategy to reduce CO2 concentration. The current study aimed to understand how C sequestration occurs in soils from various agro-ecosystems by using MBC and key soil physicochemical properties. Soil samples from various land types in the Pothwar Plateau, Punjab, Pakistan, were collected at two depths —0–15 cm and 15–30 cm. Physicochemical parameters analyzed included electrical conductivity, pH, TOC, nitrogen, phosphorus, organic matter, soil moisture, bulk density, and MBC. Results indicated significant variat

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19

Ding, S., Y. Xu, Y. Wang, et al. "Distributions of glycerol dialkyl glycerol tetraethers in surface soils of Qinghai–Tibetan Plateau: implications of GDGT-based proxies in cold and dry regions." Biogeosciences Discussions 12, no. 1 (2015): 481–513. http://dx.doi.org/10.5194/bgd-12-481-2015.

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Abstract. The methylation index of branched tetraethers (MBT) and cyclization ratio of branched tetraethers (CBT) based on the distribution of bacteria-derived branched glycerol dialkyl glycerol tetraethers (bGDGTs) are useful proxies for the reconstruction of continental paleotemperature and soil pH. Several calibrations of the MBT-CBT index have been proposed based on global and regional soils and lake sediments. However, little is known about the distribution and applicability of GDGTs proxies in the Qinghai–Tibet Plateau (QTP), a critical region of the global climate system. Here, we inves

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20

Wang, Xiaojiao, Hailiang Li, Guopeng Liang, et al. "Phosphorus Fertilization Reduces Soil Microbial Necromass Carbon Content in Tillage Layer of Dry Farmland on Loess Plateau." Agriculture 15, no. 5 (2025): 485. https://doi.org/10.3390/agriculture15050485.

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This study examines how nitrogen and phosphorus fertilization influence soil microbial necromass carbon (MNC) content of farmland on the Loess Plateau, central Gansu. Based on an extensive (6 years) experiment, a control (CK, no fertilization) and three treatment groups employing different fertilization methods, namely, nitrogen fertilization (N, 115 kg·ha−1), phosphorus fertilization (P, 115 kg·ha−1), and combined fertilization of nitrogen and phosphorus (NP, 115 kg·ha−1 each), were set up in this research. The results show that, in the tillage soil layer (within a depth range of 0–20 cm), th

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Nakajima, N., and J. Varkey. "Second Plateau Observed in Solutions of Gum Rubbers Containing Gels." Journal of Macromolecular Science, Part B 44, no. 1 (2005): 117–27. http://dx.doi.org/10.1081/mb-200044621.

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Zhang, Li, Yulian Yang, Zebin Jiao, et al. "Response of Soil Net Nitrogen Mineralization to a Litter in Three Subalpine Forests." Forests 13, no. 4 (2022): 597. http://dx.doi.org/10.3390/f13040597.

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Forest litter accumulation can regulate the soil microclimate and alter nutrient distribution, but the effects of litter quality and seasonal differences on soil nitrogen (N) mineralization are still uncertain. The effects of litter change on the rates of net N mineralization, nitrification, and ammonification were studied through in situ incubation experiments in coniferous, mixed, and broad-leaved forests in the eastern Qinghai–Tibetan Plateau. Two litter treatments were established, one to allow the litter to enter the soil normally (remain litter) and the other to prevent the litter from e

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Shi, Ruijie, Xiaojing Ren, Fei Dai, Wuyun Zhao, and Tianfu Wang. "Design of the Vibrating Sieving Mechanism for a Quinoa Combine Harvester and Coupled Analysis of DEM-MBD." Agriculture 15, no. 12 (2025): 1317. https://doi.org/10.3390/agriculture15121317.

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Quinoa is renowned for its high nutritional value, which not only meets the nutritional needs of the human body but also makes it a suitable option for individuals with diabetes and celiac disease due to its low sugar and gluten-free characteristics. In China, the primary cultivation regions of quinoa are the Tibetan Plateau, the Yunnan–Guizhou Plateau, and Northwest China, which are predominantly characterized by hilly and mountainous terrain, resulting in the gradual development of mechanized harvesting processes. The efficacy of the mechanized harvesting process in these regions is suboptim

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Qi, Yuan, Lixin Wu, Yifan Ding, et al. "Extraction and Discrimination of MBT Anomalies Possibly Associated with the Mw 7.3 Maduo (Qinghai, China) Earthquake on 21 May 2021." Remote Sensing 13, no. 22 (2021): 4726. http://dx.doi.org/10.3390/rs13224726.

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Earthquakes are one of the most threatening natural disasters to human beings, and pre- and post-earthquake microwave brightness temperature (MBT) anomalies have attracted increasing attention from geosciences as well as remote sensing communities. However, there is still a lack of systematic description about how to extract and then discriminate the authenticity of seismic MBT anomalies. In this research, the first strong earthquake occurring near the northern edge of eastern Bayan Har block in nearly 20 years, the recent Mw 7.3 Maduo earthquake in Qinghai province, China on 21 May 2021, was

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Wacker, Benjamin. "Revisiting the classical target cell limited dynamical within-host HIV model - Basic mathematical properties and stability analysis." Mathematical Biosciences and Engineering 21, no. 12 (2024): 7805–29. https://doi.org/10.3934/mbe.2024343.

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<p>In this article, we reconsider the classical target cell limited dynamical within-host HIV model, solely taking into account the interaction between $ {\rm{CD}}4^{+} $ T cells and virus particles. First, we summarize some analytical results regarding the corresponding dynamical system. For that purpose, we proved some analytical results regarding the system of differential equations as our first main contribution. Specifically, we showed non-negativity and boundedness of solutions, global existence in time and global uniqueness in time and examined stability properties of two possible

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26

Huang, Caixia, Chipi Cheng, Zeyi Wang, et al. "Straw Strip Mulching Increased Soil Organic Carbon Components of a Wheat Field in Dry Farming Regions of the Loess Plateau." Water 14, no. 17 (2022): 2645. http://dx.doi.org/10.3390/w14172645.

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To explore the response of soil organic carbon (SOC) and carbon components to surface coverage in wheat fields in semi-arid rainfed regions, a two-year field experiment was conducted under three treatments: straw strip mulching (SM), transparent plastic film mulching (PM) and no mulching (CK). We researched the dynamic feature of soil organic carbon (SOC) and its components at different growth stages of winter wheat under different mulching methods, including microbial biomass carbon (MBC), dissolved organic carbon (DOC), mineralizable carbon (PCM) and easily oxidized carbon (EOC). The results

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Zhao, Lili, Lusheng Li, Xiangjie Chen, Yanbin Li, Jiankun Ge, and Xiaowen Wang. "Responses of Soil Profile Hydrology, Structure and Microbial Respiration to Organic Amendments Under Different Tillage Systems on the Loess Plateau." Agronomy 15, no. 1 (2025): 250. https://doi.org/10.3390/agronomy15010250.

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The combined effects of tillage and organic amendments on microbial respiration and its contribution to soil hydraulic conductivity are still uncertain in the 0–40 cm layer of a loess soil. We conducted a two-year field experiment to explore the effects of organic amendments, tillage and their interaction on soil microbial respiration, aggregate stability, pore parameters, and hydraulic conductivity on the Loess Plateau. Three tillage methods (conventional tillage (CT), deep tillage (DT) and no tillage (NT)) plus five fertilizer treatments (mineral fertilizer (control) alone and along with 20

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Fu, Gang, Xianzhou Zhang, Chengqun Yu, et al. "Response of Soil Respiration to Grazing in an Alpine Meadow at Three Elevations in Tibet." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/265142.

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Alpine meadows are one major type of pastureland on the Tibetan Plateau. However, few studies have evaluated the response of soil respiration (Rs) to grazing along an elevation gradient in an alpine meadow on the Tibetan Plateau. Here three fenced enclosures were established in an alpine meadow at three elevations (i.e., 4313 m, 4513 m, and 4693 m) in July 2008. We measuredRsinside and outside the three fenced enclosures in July–September, 2010-2011. Topsoil (0–20 cm) samples were gathered in July, August, and September, 2011. There were no significant differences forRs, dissolved organic C (D

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Lu, Yixiao, Le Mu, Mei Yang, and Huimin Yang. "Lucerne Proportion Regulates Competitive Uptake for Nitrogen and Phosphorus in Lucerne and Grass Mixtures on the Loess Plateau of China." Agronomy 12, no. 6 (2022): 1258. http://dx.doi.org/10.3390/agronomy12061258.

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Mixtures of legume and grass are used worldwide to gain advantages in forage production and ecological maintenance. However, competition for nutrients by legumes in mixtures has not been fully explored. The aim was to determine how the forage proportion affected nutrient competition in legume and grass mixtures. Treatments included two species combinations and five sowing ratios. Competitive ratios (CR) of lucerne for nitrogen (N) and phosphorus (P) over two grasses were assessed to analyze how the lucerne proportion in mixtures affected the competition. Total N and P uptake were mostly lower

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Ai, Ze Min, Jiao Yang Zhang, Hong Fei Liu, Sha Xue, and Guo Bin Liu. "Influence of slope aspect on the microbial properties of rhizospheric and non-rhizospheric soils on the Loess Plateau, China." Solid Earth 9, no. 5 (2018): 1157–68. http://dx.doi.org/10.5194/se-9-1157-2018.

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Abstract. Slope aspect is an important topographic factor in the micro-ecosystem environment, but its effect on the microbial properties of grassland rhizospheric soil (RS) and non-rhizospheric soil (NRS) remain unclear. A field experiment was conducted at the Ansai Research Station on the Loess Plateau in China to test the influence of slope aspects (south-facing, north-facing, and northwest-facing slopes, all with Artemisia sacrorum as the dominant species) on RS and NRS microbial biomass carbon (MBC) contents, phospholipid fatty acid (PLFA) contents, and the rhizospheric effect (RE) of vari

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Wylam, Mark E., Nesli Gungor, Richard W. Mitchell, and Jason G. Umans. "Eosinophils, major basic protein, and polycationic peptides augment bovine airway myocyte Ca2+mobilization." American Journal of Physiology-Lung Cellular and Molecular Physiology 274, no. 6 (1998): L997—L1005. http://dx.doi.org/10.1152/ajplung.1998.274.6.l997.

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Previous studies in vivo or in isolated airway preparations have suggested that eosinophil-derived polycationic proteins enhance airway smooth muscle tone in an epithelium-dependent manner. We assessed the direct effects of activated human eosinophil supernatant, major basic protein (MBP), and polycationic polypeptides on basal and agonist-stimulated intracellular Ca2+concentrations ([Ca2+]i) in cultured bovine tracheal smooth muscle (TSM) cells. A 1-h incubation of myocytes with activated eosinophil buffer resulted in a doubling of basal [Ca2+]iand increased responsivity to histamine compared

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Mu, Chunheng, Jiaqi Li, Fuchao Huang, Zhiyu Zhang, Jing Qin, and Gailing Wang. "Response of Extracellular Enzyme Stoichiometric Properties and Microbial Metabolic Limitations to the Ecosystem Transition Mode Employed in Red Jujube Economic Forests on the Loess Plateau." Microorganisms 13, no. 4 (2025): 729. https://doi.org/10.3390/microorganisms13040729.

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Soil carbon (C), nitrogen (N), and phosphorus (P) cycling and microbial metabolism limitations are key factors affecting nutrient cycling and vegetation development. Extracellular enzyme activity (EEA) plays a key role in carbon and nutrient cycling in ecosystems, and their activities can serve as indicators of microbial nutrient requirements. At present, there is insufficient research on the nutrient limitations of microorganisms during ecosystem transition in abandoned jujube forests on the Loess Plateau. Four modes were selected: jujube forest replanted with Pinus tabulaeformis (CP), with P

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DATTATRAYAM, R. S. "Earthquake source parameter estimation using synthetic waveform modelling." MAUSAM 43, no. 4 (2021): 365–70. http://dx.doi.org/10.54302/mausam.v43i4.3503.

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Fault plane solutions and focal depths for three crustal events occurring in the Himalayan collision zone have been obtained using synthetic waveform modelling. Two crustal events with their epicenters in the Tibetan plateau show large component of normal faulting with east-west trading T-axes. The third event with It’s epicenter north of Main Boundary Thrust (MBT) shows reverse faulting with the nodal planes paralleling the local structural trend. All the three crustal events studied have occurred at shallow focal depths of less than 15 km. The Inferred source parameters of these events are d

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Teng, Kunyu, Hongke Cai, Xiubin Sun, and Quanliang Chen. "Geometric and Physical Characteristics of Precipitation Clouds in Tibetan Plateau." Advances in Meteorology 2022 (January 10, 2022): 1–18. http://dx.doi.org/10.1155/2022/9181219.

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This paper examines the basic geometric and physical characteristics of precipitation clouds over the Tibetan Plateau, based on the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) data from 1998 to 2015, using the minimum bounding rectangle (MBR) method. The results show that about 60% of the precipitation clouds occur with a scale of approximately 18 km (length) and 15 km (width), and the proportion of precipitation clouds with a length longer than 100 km and a width wider than 90 km is less than 1%. Most of the precipitation cloud exhibits a shape between square and long

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Poirier, Michael, Sertac Eroglu, Didier Chatenay, and John F. Marko. "Reversible and Irreversible Unfolding of Mitotic Newt Chromosomes by Applied Force." Molecular Biology of the Cell 11, no. 1 (2000): 269–76. http://dx.doi.org/10.1091/mbc.11.1.269.

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The force–extension behavior of individual mitotic newt chromosomes was studied, using micropipette surgery and manipulation, for elongations up to 80 times native length. After elongations up to five times, chromosomes return to their native length. In this regime chromosomes have linear elasticity, requiring ∼1 nN of force to be stretched to two times native length. After more than five times stretching, chromosomes are permanently elongated, with force hysteresis during relaxation. If a chromosome is repeatedly stretched to ∼10 times native length and relaxed, a series of hysteresis loops a

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Hu, Tinghui, Kangning Xiong, and Jun Wang. "Intercropping Peanut under Forests Can Reduce Soil N2O Emissions in Karst Desertification Control." Forests 14, no. 8 (2023): 1652. http://dx.doi.org/10.3390/f14081652.

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In the process of vegetation restoration for karst desertification management, the lack of scientific and rational intercropping technology and the blind application of large amounts of nitrogen fertilizer have made the soil the main source of atmospheric N2O in this region. How soil N2O emissions vary under different intercropping modes is a scientific question worthy of study. This study took a three-year-old loquat (Eribotrya japonica L.) artificial forest in the karst plateau canyon as the experimental site and designed loquat intercropping with peanut, corn, and sweet potato (Ipomoeabatat

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Lee, Jin-Woo, Akira Miyake, Keiichi Tasaka, Shirou Otsuka, Toshihiro Aono, and Keiichi Kurachi. "Suppressive effect of prolactin on oestrogen-induced secretion of LH by sequentially perifused rat hypothalamus-pituitary." Acta Endocrinologica 108, no. 2 (1985): 151–55. http://dx.doi.org/10.1530/acta.0.1080151.

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Abstract. The effect of prolactin (Prl) on oestrogeninduced gonadotrophin secretion was examined in vitro in a sequential double chamber perifusion system. As control groups, mediobasal hypothalamus (MBH)-pituitary pairs or pituitaries without the MBHs were perifused with Medium 199. As an experimental group, MBH-pituitary pairs were perifused with Medium 199 containing 1 μg/ml of rat Prl. These groups were stimulated with 10−7m oestradiol-17β (E2) for 30 min, and luteinizing hormone (LH) in the serial fractions of effluent was measured. In the control group of MBH-pituitary pairs perifused wi

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Li, Kun, Juanjuan Liu, Zhibo Zeng, et al. "The Complete Genome of Probiotic Lactobacillus sakei Derived from Plateau Yak Feces." Genes 11, no. 12 (2020): 1527. http://dx.doi.org/10.3390/genes11121527.

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Probiotic bacteria are receiving increased attention due to the potential benefits to their hosts. Plateau yaks have resistance against diseases and stress, which is potentially related to their inner probiotics. To uncover the potential functional genes of yak probiotics, we sequenced the whole genome of Lactobacillus sakei (L. sakei). The results showed that the genome length of L. sakei was 1.99 Mbp, with 1943 protein coding genes (21 rRNA, 65 tRNA, and 1 tmRNA). There were three plasmids found in this bacteria, with 88 protein coding genes. EggNOG annotation uncovered that the L. sakei gen

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Hultsch, T., R. Martin, and R. J. Hohman. "The effect of the immunophilin ligands rapamycin and FK506 on proliferation of mast cells and other hematopoietic cell lines." Molecular Biology of the Cell 3, no. 9 (1992): 981–87. http://dx.doi.org/10.1091/mbc.3.9.981.

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The immunosuppressive drugs FK506 and cyclosporin A have an identical spectrum of activities with respect to IgE receptor (Fc epsilon RI)-mediated exocytosis from mast cells and T cell receptor-mediated transcription of IL-2. These findings suggest a common step in receptor-mediated signal transduction leading to exocytosis and transcription and imply that immunosuppressive drugs target specific signal transduction pathways, rather than specific cell types. This hypothesis is supported by studies on the effect of rapamycin on IL-3 dependent proliferation of the rodent mast cell line PT18. Rapa

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Li, Yuan, Yuying Shen, and Tao Wang. "Freezing and thawing cycles affect nitrous oxide emissions in rain-fed lucerne (Medicago sativa) grasslands of different ages." PeerJ 9 (October 5, 2021): e12216. http://dx.doi.org/10.7717/peerj.12216.

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Lucerne (Medicago sativa L.) is a major component of the crops used in dry-land farming systems in China and its management is associated with notable nitrous oxide (N2O) emissions. A high proportion of these emissions is more likely to occur during periods when the soil undergoes freezing and thawing cycles. In this study, the effects of freeze/thaw cycles on N2O emissions and related factors were investigated in lucerne grasslands. The hypothesis was tested whether increased emissions resulted from a disruption of nitrification or denitrification caused by variations in soil temperatures and

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Li, Yuan, Yuying Shen, and Tao Wang. "Freezing and thawing cycles affect nitrous oxide emissions in rain-fed lucerne (Medicago sativa) grasslands of different ages." PeerJ 9 (October 5, 2021): e12216. http://dx.doi.org/10.7717/peerj.12216.

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Lucerne (Medicago sativa L.) is a major component of the crops used in dry-land farming systems in China and its management is associated with notable nitrous oxide (N2O) emissions. A high proportion of these emissions is more likely to occur during periods when the soil undergoes freezing and thawing cycles. In this study, the effects of freeze/thaw cycles on N2O emissions and related factors were investigated in lucerne grasslands. The hypothesis was tested whether increased emissions resulted from a disruption of nitrification or denitrification caused by variations in soil temperatures and

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Ding, Jian, Xuejia Ding, Riwei Xu, and Dingsheng Yu. "Viscoelastic Properties and Determination of Plateau Modulus for Ziegler‐Natta Catalyzed Ethylene‐Propylene Random Copolymer." Journal of Macromolecular Science, Part B 44, no. 3 (2005): 303–15. http://dx.doi.org/10.1081/mb-200056621.

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Obami Ondon, Harmel. "Physicochemical Characterization of Water of the Plateau of Mbe in Pool-North in Republic of Congo Brazzaville." American Journal of Environmental Protection 7, no. 3 (2018): 40. http://dx.doi.org/10.11648/j.ajep.20180703.11.

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Liu, Shanjun, Yi Cui, Lianhuan Wei, Wenfang Liu, and Meiyi Ji. "Pre-earthquake MBT anomalies in the Central and Eastern Qinghai-Tibet Plateau and their association to earthquakes." Remote Sensing of Environment 298 (December 2023): 113815. http://dx.doi.org/10.1016/j.rse.2023.113815.

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Shin, Junghoon, Ji-Yeon Kim, Jung Min Oh, et al. "Comprehensive Clinical Characterization of Decade-Long Survivors of Metastatic Breast Cancer." Cancers 15, no. 19 (2023): 4720. http://dx.doi.org/10.3390/cancers15194720.

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Background: Elucidating the clinical features of metastatic breast cancer (MBC) patients with an exceptionally favorable prognosis may offer insights to improve the survival of more typical patients. Methods: We collected comprehensive real-world data on clinicopathologic characteristics, treatments, and outcomes of 110 consecutive MBC patients who survived for over ten years from the clinical data warehouse of Samsung Medical Center. Results: The cohort included 54 hormone receptor (HR)-positive/HER2-negative (HR+/HER2−), 21 HR+/HER2+, 16 HR−/HER2+, and 14 triple-negative breast cancer (TNBC)

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Lu, Huibin, Peng Xing, Lei Zhai, Huabing Li, and Qinglong Wu. "Halomonas montanilacus sp. nov., isolated from hypersaline Lake Pengyanco on the Tibetan Plateau." International Journal of Systematic and Evolutionary Microbiology 70, no. 4 (2020): 2859–66. http://dx.doi.org/10.1099/ijsem.0.004109.

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A Gram-stain-negative, catalase- and oxidase-positive, aerobic, rod-shaped, motile strain (PYC7WT) was isolated from Lake Pengyanco on the Tibetan Plateau. Comparisons based on 16S rRNA gene sequences showed that strain PYC7WT belongs to the genus Halomonas , with Halomonas malpeensis YU-PRIM-29T and Halomonas johnsoniae T68687T as its closest neighbours (96.8 and 96.6 % 16S rRNA gene sequence similarity, respectively), and only 93.1 % 16S rRNA gene sequence similarity to Halomonas elongata ATCC 33173T. The predominant respiratory quinone of strain PYC7WT is Q-9, with Q-8 as a minor component.

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Pardey, Ajay, V. S. Sapkal, and R. S. Sapkal. "A Review on Membrane Bioreactor (MBR) Technology: It’s Commercial Applications And Possibilities of Hybridization with other Membrane Techniques to Recover Valuable Industrial By-Products for Sustainable Development and Environmental Protection by and Large." IRA-International Journal of Technology & Engineering (ISSN 2455-4480) 7, no. 2 (S) (2017): 202. http://dx.doi.org/10.21013/jte.icsesd201720.

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<p>Membrane bioreactor (MBR) technology is advancing rapidly around the world both in research and commercial applications. Despite the increasing number of studies and full-scale applications of MBR systems, directions and trends in academic research as well as commercial developments require further analysis. This paper aims to critically characterize and review worldwide academic research efforts in the area of MBRs as well as focus attention to commercial MBR applications. Various research papers published in peer-reviewed international journals were used as the database for the anal

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Mandeville, P., A. J. SpringThorpe, C. J. Miner, R. A. Bruce, J. F. Currie, and S. P. McAlister. "Growth and characterization of GaAs on Si substrates grown by molecular-beam epitaxy." Canadian Journal of Physics 65, no. 8 (1987): 897–903. http://dx.doi.org/10.1139/p87-140.

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Single-crystal GaAs layers have been grown by molecular beam epitaxy (MBE) on (100) Si substrates. Surface morphology, defect density, and optical and electrical properties have been studied as a function of the growth parameters. The characterization techniques included photoluminescence, Hall effect, cross-sectional transmission electron microscopy, and X-ray diffraction. GaAs metal semiconductor field-effect transitors on Si exhibited transconductances of 128 mS∙mm−1 and current-gain cutoff frequencies as high as 19 GHz. Special heterostructures showed Shubnikov–de Haas oscillations at low

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olde Heuvel, J., B. J. de Wit-van der Veen, M. Sinaasappel, C. H. Slump, and M. P. M. Stokkel. "Early differences in dynamic uptake of 68Ga-PSMA-11 in primary prostate cancer: A test-retest study." PLOS ONE 16, no. 2 (2021): e0246394. http://dx.doi.org/10.1371/journal.pone.0246394.

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Introduction Dynamic PET/CT allows visualization of pharmacokinetics over the time, in contrast to static whole body PET/CT. The objective of this study was to assess 68Ga-PSMA-11 uptake in pathological lesions and benign tissue, within 30 minutes after injection in primary prostate cancer (PCa) patients in test-retest setting. Materials and methods Five patients, with biopsy proven PCa, were scanned dynamically in list mode for 30 minutes on a digital PET/CT-scanner directly after an intravenous bolus injection of 100 MBq 68Ga-PSMA-11. Approximately 45 minutes after injection a static whole b

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Dragan, Zac, Adam R. George, Ryan J. Campbell, Randolph Gray, Brahman Shankar Sivakumar, and Michael Symes. "Lumbar intervertebral disc replacement in Australia: An epidemiological study." Journal of Craniovertebral Junction and Spine 15, no. 3 (2024): 338–42. http://dx.doi.org/10.4103/jcvjs.jcvjs_119_24.

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ABSTRACT Introduction: Favorable short- and long-term outcomes have been reported for lumbar intervertebral total disc replacement (L-TDR). However, there is little evidence regarding the uptake of L-TDR in practice. The objective of this study was to analyze Australian-based population trends in L-TDR over the past 5 years. Methods: The 5-year incidence of L-TDR from 2019 to 2023 in adult patients was analyzed using the Medicare Benefits Schedule (MBS) database. Data were stratified by sex and year, with an offset term introduced using population data from the Australian Bureau of Statistics

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