961 results on '"Jiang WL"'
Search Results
2. The role of Chinese herbal medicine in the regulation of oxidative stress in treating hypertension: from therapeutics to mechanisms.
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Jin, Zixuan, Lan, Yu, Li, Junying, Wang, Pengqian, and Xiong, Xingjiang
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Background: Although the pathogenesis of essential hypertension is not clear, a large number of studies have shown that oxidative stress plays an important role in the occurrence and development of hypertension and target organ damage. Purpose: This paper systematically summarizes the relationship between oxidative stress and hypertension, and explores the potential mechanisms of Chinese herbal medicine (CHM) in the regulation of oxidative stress in hypertension, aiming to establish a scientific basis for the treatment of hypertension with CHM. Methods: To review the efficacy and mechanism by which CHM treat hypertension through targeting oxidative stress, data were searched from PubMed, EMBASE, the Cochrane Central Register of Controlled Trials, the Chinese National Knowledge Infrastructure, the VIP Information Database, the Chinese Biomedical Literature Database, and the Wanfang Database from their inception up to January 2024. NPs were classified and summarized by their mechanisms of action. Results: In hypertension, the oxidative stress pathway of the body is abnormally activated, and the antioxidant system is inhibited, leading to the imbalance between the oxidative and antioxidative capacity. Meanwhile, excessive production of reactive oxygen species can lead to endothelial damage and vascular dysfunction, resulting in inflammation and immune response, thereby promoting the development of hypertension and damaging the heart, brain, kidneys, blood vessels, and other target organs. Numerous studies suggested that inhibiting oxidative stress may be the potential therapeutic target for hypertension. In recent years, the clinical advantages of traditional Chinese medicine (TCM) in the treatment of hypertension have gradually attracted attention. TCM, including active ingredients of CHM, single Chinese herb, TCM classic formula and traditional Chinese patent medicine, can not only reduce blood pressure, improve clinical symptoms, but also improve oxidative stress, thus extensively affect vascular endothelium, renin–angiotensin–aldosterone system, sympathetic nervous system, target organ damage, as well as insulin resistance, hyperlipidemia, hyperhomocysteinemia and other pathological mechanisms and hypertension related risk factors. Conclusions: CHM display a beneficial multi-target, multi-component, overall and comprehensive regulation characteristics, and have potential value for clinical application in the treatment of hypertension by regulating the level of oxidative stress. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Estimation of scrub typhus incidence and spatiotemporal multicomponent characteristics from 2016 to 2023 in Zhejiang Province, China.
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Haocheng Wu, Ming Xue, Chen Wu, Qinbao Lu, Zheyuan Ding, Xinyi Wang, Tianyin Fu, Ke Yang, and Junfen Lin
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- 2024
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4. Cellular and extracellular proteomic profiling of paradoxical low-flow low-gradient aortic stenosis myocardium.
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Elkenani, Manar, Barallobre-Barreiro, Javier, Schnelle, Moritz, Mohamed, Belal A., Beuthner, Bo E., Jacob, Christoph Friedemann, Paul, Niels B., Xiaoke Yin, Theofilatos, Konstantinos, Fischer, Andreas, Puls, Miriam, Zeisberg, Elisabeth M., Shah, Ajay M., Mayr, Manuel, Hasenfuß, Gerd, and Toischer, Karl
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- 2024
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5. Lagrange Stability of Competitive Neural Networks with Multiple Time-Varying Delays.
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Tang, Dandan, Wang, Baoxian, Jian, Jigui, and Hao, Caiqing
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In this paper, the Lagrange stability of competitive neural networks (CNNs) with leakage delays and mixed time-varying delays is investigated. By constructing delay-dependent Lyapunov functional, combining inequality analysis technique, the delay-dependent Lagrange stability criterion are obtained in the form of linear matrix inequalities. And the corresponding global exponentially attractive set (GEAS) is obtained. On this basis, by exploring the relationship between the leakage delays and the discrete delay, a better GEAS of the system is obtained from the six different sizes of the two types of delays. Finally, three examples of numerical simulation are given to illustrate the effectiveness of the obtained results. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Protective effects of ginsenosides on ulcerative colitis: a meta-analysis and systematic review to reveal the mechanisms of action.
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Yuan, Lingling, Li, Wei, Hu, Shuangyuan, Wang, Yingyi, Wang, Shaofeng, Tian, Huai'e, Sun, Xuhui, Yang, Xuli, Hu, Mengyun, and Zhang, Yi
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TUMOR necrosis factors ,ULCERATIVE colitis ,GINSENOSIDES ,INTERVAL analysis ,COLON diseases - Abstract
Background: Ulcerative colitis (UC) is a chronic inflammatory disease of the colon. Ginsenoside may be an ideal agent for UC treatment. However, its efficacy and safety are unknown. We aim to conduct a systematic evaluation to assess the effects and potential mechanisms of ginsenosides in animal models of UC. Methods: Six electronic databases will be searched (PubMed, Embase, Web of Science, China Knowledge Network (CNKI), China Science and Technology Journal Database (CQVIP), and Wanfang Data Knowledge). SYRCLE list will be used to assess the quality of literature, and STATA 15.1 for data analysis. Time-dose effects analysis will be used to reveal the time-dosage response relations between ginsenosides and UC. Results: Ultimately, fifteen studies involving 300 animals were included. Preliminary evidence was shown that ginsenosides could reduce Disease Activity Index (DAI) scores, weight loss, histological colitis score (HCS), spleen weight, Malondialdehyde (MDA), Myeloperoxidase (MPO) activity, interleukin-1β (IL-1β), interleukin 6 (IL-6), tumor necrosis factor α (TNF-α) and increase colon length (CL), myeloperoxidase (GSH), interleukin 4 (IL-4), interleukin 10 (IL-10), Zonula Occludens-1 (ZO-1) and occludin. Results of time-dose interval analysis indicated that ginsenosides at a dosage of 5–200 mg/kg with an intervention time of 7–28 days were relatively effective. Conclusions: Preclinical evidence suggests that ginsenoside is a novel treatment for UC. And the mechanisms of ginsenosides in treating UC may involve anti-inflammatory, antioxidant, barrier protection, intestinal flora regulation, and immune regulation. Although, due to the high heterogeneity, further large-scale and high-quality preclinical studies are needed to examine the protection of ginsenosides against UC. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Cellular and extracellular proteomic profiling of paradoxical low-flow low-gradient aortic stenosis myocardium.
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Elkenani, Manar, Barallobre-Barreiro, Javier, Schnelle, Moritz, Mohamed, Belal A., Beuthner, Bo E., Jacob, Christoph Friedemann, Paul, Niels B., Xiaoke Yin, Theofilatos, Konstantinos, Fischer, Andreas, Puls, Miriam, Zeisberg, Elisabeth M., Shah, Ajay M., Mayr, Manuel, Hasenfuß, Gerd, and Toischer, Karl
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- 2024
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8. Correlation analysis of cofilin-1 with renal prognosis in primary IgA nephropathy.
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Zhao, Ruo-Bei, Xu, Yuan-Shan, Li, Xiao-Hua, Wei, Mei-Ju, Deng, Yang, Peng, Xun, and Pan, Ling
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IGA glomerulonephritis ,ENZYME-linked immunosorbent assay ,KIDNEY physiology ,RECEIVER operating characteristic curves ,RENAL biopsy - Abstract
Purpose: The purpose of this study was to investigate the correlation between podocyte related biomarker cofilin-1 and renal function, and explore the value of cofilin-1 in predicting the risk of renal adverse prognosis in IgA nephropathy (IgAN). Methods: Patients with primary IgAN diagnosed by initial renal biopsy performed in our hospital from January 2019 to February 2022 were included. This study was a prospective cohort study. All IgAN patients were detected the expression of cofilin-1 and other related biomarkers (RhoA, NGAL) in urine by enzyme-linked immunosorbent assay (ELISA) and follow-up at least 6 months. We also collected baseline clinicopathologial data of IgAN. The decreased renal function group was defined as baseline eGFR < 60 ml/min/1.73m
2 . Logistic and Cox regression model were used to analyze the correlation among cofilin-1 and renal prognosis. Results: 133 IgAN patients were included, with a male-to-female ratio of 1.25:1 and an age of 37.67 ± 13.78 years, as well as an average of eGFR was 71.63 (40.42,109.33) ml/min/1.73m2 . 56 patients (42.1%) had decreased renal function at baseline, with the average of eGFR was 34.07 (16.72, 49.21) ml/min/1.73 m2 . 12 of which developed to renal adverse prognosis. The average of follow-up time was 22.035 ± 8.992 months. The multivariate regression analysis showed that increased urinary cofilin-1 was an independent risk factor associated with baseline renal function decline and renal adverse prognosis in IgAN patients (P < 0.05). ROC curves showed great efficacy of urinary cofilin-1 levels in diagnosing baseline renal function decline and predicting renal adverse prognosis (the area under the ROC curve was 0.708 and 0.803). Conclusion: Cofilin-1 as a novel biomarker of podocyte lesion is closely related to renal function decline in IgAN. Cofilin-1 has certain clinical value in predicting the risk of renal adverse prognosis. Podocyte fusion affects the renal prognosis of IgAN. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Exploring the relationship between lipid metabolism and cognition in individuals living with stable-phase Schizophrenia: a small cross-sectional study using Olink proteomics analysis.
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Zheng, Yingkang, Cai, Xiaojun, Wang, Dezhong, Chen, Xinghai, Wang, Tao, Xie, Yanpeng, Li, Haojing, Wang, Tong, He, Yinxiong, Li, Jiarui, and Li, Juan
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BLOOD lipids ,MILD cognitive impairment ,MONTREAL Cognitive Assessment ,COGNITIVE ability ,LIPID metabolism - Abstract
Background: Cognitive impairment is a core symptom of schizophrenia. Metabolic abnormalities impact cognition, and although the influence of blood lipids on cognition has been documented, it remains unclear. We conducted a small cross-sectional study to investigate the relationship between blood lipids and cognition in patients with stable-phase schizophrenia. Using Olink proteomics, we explored the potential mechanisms through which blood lipids might affect cognition from an inflammatory perspective. Methods: A total of 107 patients with stable-phase schizophrenia and cognitive impairment were strictly included. Comprehensive data collection included basic patient information, blood glucose, blood lipids, and body mass index. Cognitive function was assessed using the Montreal Cognitive Assessment (MoCA) and the MATRICS Consensus Cognitive Battery (MCCB). After controlling for confounding factors, we identified differential metabolic indicators between patients with mild and severe cognitive impairment and conducted correlation and regression analyses. Furthermore, we matched two small sample groups of patients with lipid metabolism abnormalities and used Olink proteomics to analyze inflammation-related differential proteins, aiming to further explore the association between lipid metabolism abnormalities and cognition. Results: The proportion of patients with severe cognitive impairment (SCI) was 34.58%. Compared to patients with mild cognitive impairment (MCI), those with SCI performed worse in the Attention/Alertness (t = 2.668, p = 0.009) and Working Memory (t = 2.496, p = 0.014) cognitive dimensions. Blood lipid metabolism indicators were correlated with cognitive function, specifically showing that higher levels of TG (r = -0.447, p < 0.001), TC (r = -0.307, p = 0.002), and LDL-C (r = -0.607, p < 0.001) were associated with poorer overall cognitive function. Further regression analysis indicated that TG (OR = 5.578, P = 0.003) and LDL-C (OR = 5.425, P = 0.001) may be risk factors for exacerbating cognitive impairment in individuals with stable-phase schizophrenia. Proteomics analysis revealed that, compared to individuals with stable-phase schizophrenia and normal lipid metabolism, those with hyperlipidemia had elevated levels of 10 inflammatory proteins and decreased levels of 2 inflammatory proteins in plasma, with these changes correlating with cognitive function. The differential proteins were primarily involved in pathways such as cytokine-cytokine receptor interaction, chemokine signaling pathway, and IL-17 signaling pathway. Conclusion: Blood lipids are associated with cognitive function in individuals with stable-phase schizophrenia, with higher levels of TG, TC, and LDL-C correlating with poorer overall cognitive performance. TG and LDL-C may be risk factors for exacerbating cognitive impairment in these patients. From an inflammatory perspective, lipid metabolism abnormalities might influence cognition by activating or downregulating related proteins, or through pathways such as cytokine-cytokine receptor interaction, chemokine signaling pathway, and IL-17 signaling pathway. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Plant natural products: A lead for nephroprotection.
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Saifi, Asif, Rastogi, Parkhi, Mujahid, Mohd., and Hussain, Md. Sarfaraj
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TYPE 2 diabetes ,BIOACTIVE compounds ,DIABETIC nephropathies ,TYPE 1 diabetes ,PLANT products ,ADVANCED glycation end-products ,RECEPTOR for advanced glycation end products (RAGE) - Abstract
An extremely dangerous side effect of type I and type II diabetes is diabetic nephropathy (DN). From the early microproteinuria to end-stage renal failure, it progresses. About one in three diabetics in the US suffer from diabetic nephropathy. Chronic hyperglycemia is the primary cause of diabetic ketoacidosis. Hyperglycemia (HG) has the potential to cause humoral mediators and cytokines to be produced by both resident and non-resident renal cells. These substances may interfere with cell growth, alter renal cell and tissue phenotype and function, interact with proteins, produce advanced glycation end products (AGEs), damage tubules and glomeruli, and ultimately cause kidney disease. Poor blood glucose management is thus a significant risk factor for the onset of DN. An alternate course of treatment for DN may use extracts from herbal remedies. Medicinal plants' bioactive components stop DN from progressing. Attention has to be paid to the role that traditional herbs and medications play in the treatment of diabetic nephropathy, particularly in India where several fruits and herbs are believed to provide health benefits. Natural compounds influence the KEAP1/Nrf2/ARE and NFB pathways in addition to having antioxidant and anti-inflammatory properties. The efficacy of entire herbs, plants, or seeds, together with their active components, in treating diabetic nephropathy was investigated in preclinical research. Natural compounds are biologically active substances that come from natural sources and are beneficial for treating specific illnesses. Numerous natural substances, such as glycosides, polysaccharides, terpenoids, alkaloids, flavonoids, and polyphenols, have been shown to enhance DN. The exorbitant expenses associated with contemporary medications suggest that other approaches are necessary for improved DN treatment. Future research on herbal remedies may provide a natural key to open a pharmacy for diabetologists. [ABSTRACT FROM AUTHOR]
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- 2024
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11. The Effect of Vitamin D Deficiency Treatment on Lipid Profile and C-reactive Protein in Patients with Ischemic Heart Disease: Double-blind Randomized Clinical Trial.
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Sadeghi, Masoumeh, Momeni, Ali, Mirsaeidi, Fatemeh S., Jamalian, Marjan, Amirpour, Afshin, Hadavi, Mohammad M., Tavassoli, Parsa, Taheri, Marzieh, Azizi, Elham, Rouhani, Sina, and Roohafza, Hamid
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- 2024
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12. Apelin-13-Loaded Macrophage Membrane-Encapsulated Nanoparticles for Targeted Ischemic Stroke Therapy via Inhibiting NLRP3 Inflammasome-Mediated Pyroptosis.
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Ma, Chang-Sheng, Ma, Ya-Ping, Han, Bo, Duan, Wan-Li, Meng, Shu-Chen, Bai, Min, Dong, Hao, Zhang, Li-Ying, Duan, Meng-Yuan, Liu, Jing, Deng, Ai-Jun, and He, Mao-Tao
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- 2024
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13. The development and utilization of shale oil and gas resources in China and economic analysis of energy security under the background of global energy crisis.
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Fu, Enqi and He, Weida
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SHALE oils ,SHALE gas ,OIL shales ,PETROLEUM reserves ,ENERGY shortages ,PETROLEUM industry ,NATURAL gas prospecting ,GIBBERELLINS - Abstract
The key scientific problem to be solved in this paper is the optimal development and utilization model and the economic evaluation model of China's land-phase shale oil and gas resources, and the purpose of the research is to promote the large-scale commercial development and utilization of China's shale oil and gas resources, and to safeguard China's oil and gas energy security and the sustainable development of the economy. The article proposes to adopt the small surface element volume method (oil content rate method) to evaluate the pure shale oil resources, adopt the Cobb–Douglas production function model as the optimization model to measure the boundary production capacity of shale oil and gas, construct the optimal development and utilization model for shale oil and gas resources considering the five first-level safeguard indexes, namely, science and technology (A), capital (K), talents (L), reserves (S) and ecological environment (E), and establish the basic constraint model for the optimal development and utilization of shale oil and gas resources. The basic constraint model, as well as the evaluation model of economic coefficients for the development and utilization of shale oil and gas resources were established. The pure shale oil resources are mainly calculated based on the movable oil content of shale. In the paper, the S
1 of normal pyrolysis (300 °C) is regarded as movable oil, and the sum of S1 and evaporated hydrocarbon (light hydrocarbon) loss is the movable oil content of shale. The integrated geological-physical exploration-engineering comprehensive evaluation of China's land-phase shale oil-rich and high-yielding "sweet spot" is an important prerequisite for the realization of shale oil and gas resources to build production scale and effective development, and the least-squares method is used to estimate the average production function, the distance to the maximum value of the residuals, and the boundary capacity production function. The average production function and residual maximum distance are estimated by the least squares method, and the production function of the boundary capacity is derived, and the quotient of the boundary capacity and the actual capacity is calculated to get the capacity utilization rate, which can be used to analyze the potential of future shale oil and gas growth. The development of shale oil and gas resources in a target block requires comprehensive consideration of the first-level guarantee indicators such as science and technology (A), capital (K), talents (L), reserves (S) and ecological environment (E), as well as more than 10 s-level indicators and a number of third-level indicators, in order to ensure that the oil companies maximize their profits by organizing the development and production. The economic coefficient can be expressed as the ratio of economically recoverable resources to geological reserves. The larger the economic coefficient for the development and utilization of shale oil and gas resources is, the better the economy of the area is, and the larger the proportion of shale oil and gas resources that can be exploited. There is little special literature on the optimal development and utilization model of shale oil and gas resources and energy security among many research results at home and abroad. The evaluation of pure shale oil using the small surface element volume method (oil content rate method) and the construction of the boundary capacity calculation model, the optimal development of the basic constraints model and the economic evaluation model that we have determined, although they can not yet fully cover all the links and factors related to the development and utilization of shale oil and gas resources, are not yet fully covered by our research work. However, our research work has given the model more geological and economic theoretical connotations, and provided an economic basis and technical reference for the large-scale and commercial development and utilization of shale oil and gas resources as an effective alternative to oil imports. [ABSTRACT FROM AUTHOR]- Published
- 2024
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14. AQUASENSE: aquaculture water quality monitoring framework using autonomous sensors.
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M., Iniyan Arasu, S., Subha Rani, K., Thiyagarajan, and A., Ahilan
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Aquaculture is an important economic and food source in many countries. Due to environmental restrictions and the effects of aquatic diseases, aquaculture requires a lot of labor and expensive materials, and it relies on the expertise of aquaculture experts. The quality of water is essential for aquaculture development. Therefore, in this paper, a novel aquaculture water quality monitoring using autonomous sensors (AquaSense) has been proposed which uses autonomous sensors for efficient monitoring of water in the aquaculture environment. In the AquaSense framework, temperature, pH, dissolved oxygen, and salinity measurements are recorded and collected using a variety of autonomous sensors. Based on the information gathered, users can assess the condition of their farm through the Internet. The MATLAB R2012b platform is employed to verify the effectiveness of the suggested water quality (WQ) monitoring technique and analyze the data. Several criteria including accuracy, precision, recall, specificity, and f1-score have been used to assess the effectiveness of the suggested strategy. AquaSense achieves the high accuracy ranges of 96.98%, and existing techniques ISAS, AquaStat, and IoT-WQI FIS achieve 91.24%, 93.39%, and 88.92%, respectively. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Efficacy and Safety of Deep Transcranial Magnetic Stimulation Versus High-Frequency Repetitive Transcranial Magnetic Stimulation for Major Depressive Disorder: A Systematic Review.
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Zhang, Nan, Mo, Yu, Lan, Xian-Jun, Liu, Qi-Man, Li, Wen-Xiu, Huang, Xing-Bing, Wu, Hua-Wang, Xu, Shi-Chao, Li, Shu-Yun, Yang, Xin-Hu, and Zheng, Wei
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- 2024
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16. Seismogenic model of the 2023 MW5.5 Pingyuan earthquake in North China Plain and its tectonic implications.
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Shiguang Wang, Libo Han, Junju Xie, Liping Fan, Xiang Huang, Jinmeng Bi, Hongfeng Yang, and Lihua Fang
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GROUND motion ,EARTHQUAKES ,SHEAR strain ,SEISMOTECTONICS ,SHEAR waves ,EARTHQUAKE aftershocks - Abstract
The 6 August 2023 MW5.5 Pingyuan earthquake is the largest earthquake in the central North China Plain (NCP) over the past two decades. Due to the thick sedimentary cover, no corresponding active faults have been reported yet in the epicenter area. Thus, this earthquake presents a unique opportunity to delve into the buried active faults beneath the NCP. By integrating strong ground motion records, high-precision aftershock sequence relocation, and focal mechanism solutions, we gain insights into the seismotectonics of the Pingyuan earthquake. The aftershocks are clustered at depths ranging from 15 to 20 km and delineate a NE-SW trend, consistent with the distribution of ground motion records. A NE-SW nodal plane (226°) of the focal mechanism solutions is also derived from regional waveform inversion, suggesting that the mainshock was dominated by strike-slip motion with minor normal faulting component. Integrating regional geological data, we propose that an unrecognized fault between the NE-SW trending Gaotang and Lingxian-Yangxin faults is the seismogenic fault of this event. Based on the S-wave velocity structure beneath the NCP, this fault probably extends into the lower crust with a high angle. Considering the tectonic regime and stress state, we speculate that the interplay of shear strain between the Amurian and South China blocks and the hot upwelling magma from the subducted paleo Pacific flat slab significantly contributed to the generation of the Pingyuan earthquake. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Spatial patterns of Geological Culture Villages (Towns) and their influential factors in China.
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Zhang, Yunxing, Zhang, Zhenyu, Lu, Chenchen, Yang, Meiyu, Zhao, Zhengyu, and Gu, Cuihua
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GEOLOGICAL repositories ,SPATIAL arrangement ,CULTURAL values ,GEOLOGICAL formations ,CULTURAL property - Abstract
Geological Culture Villages Towns (GCV(T)s) serve as rich repositories of geological resources, embodying significant historical and cultural values that mirror the dynamic interplay between Earth's evolution and human societies. Despite their importance, the theoretical underpinnings of GCV(T)s have not been thoroughly explored and elucidated. This study explores the relationship between geological culture and societal development, revealing the linkage between geological culture and societal advancement with the aim of promoting a harmonious coexistence between humanity and the environment. Focusing on 96 GCV(T)s in China, this study employs spatial analytical techniques such as the nearest-neighbor index, kernel density analysis, geographic connectivity, and geographic detector to scrutinize the spatial distribution patterns and identify key influencing factors. The findings reveal that (1) GCV(T)s exhibit uneven distribution, with concentrations in the Yangtze River Delta region, Beijing-Tianjin-Hebei region, and Shanxi-Gansu and Ningxia Provinces. (2) These sites tend to be situated in areas characterized by active geological formations, abundant geological relics, higher elevations, gentle topography, and ample rainfall. (3) The establishment and evolution of GCV(T)s are shaped by a complex interplay of geological heritage, natural factors, and human interventions. While the selection and spatial arrangement of these sites are predominantly influenced by geological and natural factors, the innovative development of their geological cultural heritage is driven by humanistic considerations. Overall, the distribution and evolution of GCV(T)s stem from multifaceted interactions among diverse factors. Recognizing this intricate web of influences is crucial for safeguarding geocultural diversity and formulating conservation strategies for geoheritage protection. The development of GCV(T)s transcends mere geoheritage preservation, it embodies a pivotal stride toward safeguarding the varied and multi-dimensional global geoheritage. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Hyperoxia exposure promotes endothelial-mesenchymal transition and inhibits regulatory T cell function in human pulmonary microvascular endothelial cells.
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Yifan Sun, Chongbing Yan, Yibo Liu, Yating Lin, Bowen Weng, Xiaohui Gong, and Cheng Cai
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- 2024
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19. Co and postseismic fault slip models of the 2022 MW6.7 Menyuan earthquake reveal conjugated faulting tectonics at the central section of the Lenglongling fault.
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Zilong He, Wenbin Xu, Zhiwei Li, Lei Xie, Guangcai Feng, Nan Fang, Xiaoge Liu, Kai Sun, Zhidan Chen, and Zhihui Zhu
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EARTHQUAKE aftershocks ,EARTHQUAKES ,FAULT zones ,SYNTHETIC aperture radar - Abstract
The 2022 M
W 6.7 Menyuan earthquake ruptured the western end of the Tianzhu seismic gap, providing an opportunity to study the regional seismogenic characteristics and seismic hazards. Here we use interferometric synthetic aperture radar (InSAR) and seismic data to study the mainshock rupture, early afterslip and the second largest aftershock of the 2022 Menyuan earthquake sequences. Our modeling results show that the mainshock ruptured the Lenglongling fault and the Tuolaishan fault with a maximum slip of ~3 m. Rapid postseismic transient deformation occurred at the center of the Lenglongling fault. Our afterslip modeling reveals that the majority of afterslip occurred in the deeper part of the Lenglongling fault. A high-angle conjugated faulting event is found at the middle section of the Lenglongling fault. We use the stress inversion to investigate the possible triggering mechanism of the conjugated rupture event. The results indicate the maximum principal stress direction is in ~222°, forming a ~22° angle between the conjugated fault of second largest aftershock and the mainshock. The calculated normal stress changes indicate the region is within a pull-apart stress field, which favors such a conjugated rupturing event. Our study will help understand the rupture behavior of such kind of conjugated fault in other regions. [ABSTRACT FROM AUTHOR]- Published
- 2024
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20. A systematic review on the morphology structure, propagation characteristics, resistance physiology and exploitation and utilization of Nitraria tangutorum Bobrov.
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Li, Xiaolan, Liu, Hanghang, Li, Chaoqun, and Li, Yi
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EDIBLE wild plants ,SAND dunes ,DROUGHT-tolerant plants ,BLOOD sugar ,SANDY soils - Abstract
Nitraria tangutorum Bobrov., belonging to the family Nitrariaceae, is a drought-tolerant and salt-loving plant and has drawn attention for its good economic and ecological value. As one of the main group species and dominant species in China's desert and semi-desert regions, N. tangutorum possesses superior tolerance to drought, high temperature, cold, barren, high salinity and alkalinity and wind and sand. Its root system is well developed, with many branches and a strong germination capacity. Once buried in sandy soil, N. tangutorum can quickly produce a large number of adventitious roots, forming new plants and continuously expanding the shrubs, forming fixed and semi-fixed shrub sand dunes. Sand dune shrubs can trap and fix a large amounts of quicksand, prevent desert expansion and erosion, and play an important role in maintaining regional ecosystem balance and improving ecological environmental quality. In addition, the phytochemical screening studies report that N. tangutorum contains an abundance of various compounds including flavonoids, alkaloids, phenolic acids and polysaccharides. These compounds confer a range of beneficial bioactivities such as antioxidant, anti-inflammatory, anti-tumor, anti-fatigue, liver protection, neuroprotection, cardiovascular protection, lowering blood lipid, regulating blood sugar level and immunoregulation. The fruits of N. tangutorum also contain vitamin C, amino acids, minerals and microelements. It has been traditionally used as a nutritional food source and in folk medicine to treat diseases of the spleen and stomach, abnormal menstruation, indigestion, and hyperlipidemia. N. tangutorum, as a wild plant with medicinal and edible homology, possesses remarkable economic and medicinal values. This detailed, comprehensive review gathers and presents all the information related to the morphological structure, propagation characteristics, resistance physiology and exploitation and utilization of N. tangutorum, providing a theoretical basis for the researchers to conduct future in-depth research on N. tangutorum. [ABSTRACT FROM AUTHOR]
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- 2024
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21. Blood and urine biomarkers of disease progression in IgA nephropathy.
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Duan, Zhi-Yu, Zhang, Chun, Chen, Xiang-Mei, and Cai, Guang-Yan
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IGA glomerulonephritis ,CHRONIC kidney failure ,NON-coding RNA ,URINALYSIS ,PREDICTION models - Abstract
The prognosis of patients with IgA nephropathy (IgAN) is variable but overall not good. Almost all patients with IgAN are at risk of developing end-stage renal disease within their expected lifetime. The models presently available for prediction of the risk of progression of IgAN, including the International IgA Nephropathy Prediction Tool, consist of traditional clinical, pathological, and therapeutic indicators. Finding biomarkers to improve the existing risk prediction models or replace pathological indicators is important for clinical practice. Many studies have attempted to identify biomarkers for prediction of progression of IgAN, such as galactose-deficient IgA1, complement, a spectrum of protein biomarkers, non-coding RNA, and shedding cells. This article reviews the biomarkers of progression of IgAN identified in recent years, with a focus on those with clinical value, in particular the combination of multiple biomarkers into a biomarker spectrum. Future research should focus on establishing a model based primarily on biomarkers that can predict progression of IgAN and testing it in various patient cohorts. [ABSTRACT FROM AUTHOR]
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- 2024
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22. Identification of sliding surface and classification of landslide warning based on the integration of surface and deep displacement under normal distribution theory.
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Wang, Dong, Wang, Yanting, Li, Guanghe, Wang, Laigui, Zhou, Zhiwei, Du, Yongzhi, and Ding, Chunjian
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- 2024
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23. Study on preparing novel cross-linked and fluorinated acrylate latex.
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Li, Si, Gong, Zheqing, and Chen, Lijun
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ACRYLATES ,METHYL methacrylate ,SODIUM dodecyl sulfate ,LATEX ,FOURIER transform infrared spectroscopy ,TRANSMISSION electron microscopes ,PARTICLE size distribution - Abstract
Novel cross-linked fluorinated acrylate latex was successfully synthesized via the semi-continuous seeded emulsion polymerization, in which methyl methacrylate (MMA) and butyl acrylate (BA) were used as the main monomers, and dodecafluoroheptyl methacrylate (DFMA) and N–N methylene bisacrylamide (MBA) were used as the fluorine monomer and the cross-linked monomer, respectively. Potassium persulfate (KPS) and mixed surfactants of sodium lauryl sulfate and alkyl alcohol polyether (EFS-470) were used as the initiator and emulsifier, respectively. The structure of resultant latex film was characterized by Fourier transform infrared spectroscopy (FTIR). The latex films were tested by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), contact angle (CA), cross-linked degree and X-ray diffractometer (XRD). The particle size and its distribution of the latex were measured by the nanoparticle size analyzer and transmission electron microscope (TEM). The factors that have an influence on the properties of the latex and the film are investigated in detail. The stability of the resultant latex was good. The average particles of the latex and its distribution were small and uniform, respectively. In comparison with the conventional latex film, the thermal stability and hydrophobicity of the novel latex film were improved obviously. [ABSTRACT FROM AUTHOR]
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- 2024
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24. Isolation and screening of actinomycetes producing antimicrobial substances from Pulau Seribu.
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Sunaryanto, R, Pramisandi, A, Rudiyono, Putra, I G E P, Frediansyah, A, Damayanti, E, Basuki, W, Achnafani, D, Andriana, Y, Fitrianto, N, and Mustofa
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- 2024
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25. Circulating MicroRNAs and Cytokines Associated with Celiac Disease.
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Hammad, Dargham and Muslim Alameedy, Fadyia Mahdi
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CELIAC disease diagnosis ,RISK assessment ,MICRORNA ,REVERSE transcriptase polymerase chain reaction ,DESCRIPTIVE statistics ,GENE expression ,NUCLEIC acids ,CYTOKINES ,EXTRACELLULAR space ,CELIAC disease ,INFLAMMATION ,INTERLEUKINS ,BIOMARKERS ,IMMUNITY ,BLOOD ,DISEASE risk factors - Abstract
Background: The current research examines the molecular terrain of celiac disease (CD) through microRNA (miRNA) and cytokines as potential new diagnostic and therapeutic markers. Gluten-appropriate immune response is a key feature of an autoimmune clinical entity known as CD that leads to inflammation and degeneration of small intestine mucosa. However, the mechanisms responsible for this remain unclear. Methods: Quantitative reverse transcription polymerase chain reaction (RT-qPCR ) was carried out on serum samples obtained from patients with CD and control groups to unravel their pathogenesis. Assessing miR-155, miR-15b, interleukin (IL)-2, IL-7, IL-35and IL-37 levels in expression might be useful in diagnosing or treating the disorder. Results: A significant dysregulation of these molecular players in patients with CD compared with healthy controls has been evidenced by results from this study. For instance, miR-155 was up-regulated, whereas miR-15b was significantly down-regulated in CD, illustrating their roles in immune responses and inflammation-mediated processes. Besides, there was an over-expression of IL-2 and an under-expression of IL-37 in patients with CD, indicating these biomolecules' role in immuno-dysregulation and inflammatory process underlying CD. In addition, a positive correlation between IL-2 and miRNA 155 expression levels was observed in patients with CD, suggesting that they could be involved together with other cytokines, showing the interplay between immune response pathways and inflammatory cascades during CD pathogenesis. Conclusion: These molecular signature discoveries might result in new and revolutionary diagnostic modalities and molecular-targeted therapies for CD pathogenesis. When used with the scientific understanding of miRNAs and cytokines associated with CD pathophysiology, it creates a basis for personalized medicine based on the individualized molecular profile of all patients. This will undoubtedly increase the efficacy of CD treatment strategies. In brief, more research on molecular pathways' workings should be done to harness their potential in CD diagnosis and treatment. [ABSTRACT FROM AUTHOR]
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- 2024
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26. Rosmarinic acid ameliorates the complications of monocrotalineinduced right ventricular hypertrophy on the left ventricle: Investigating the signaling pathway of Wnt/β-catenin in the heart.
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Atefipour, Narges, Dianat, Mahin, Badavi, Mohammad, Radan, Maryam, and Mard, Seyyed Ali
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RIGHT ventricular hypertrophy ,ROSMARINIC acid ,LEFT ventricular hypertrophy ,ARTERIAL calcification ,CELLULAR signal transduction - Abstract
Objective(s): Right ventricular hypertrophy (RVH) often results in failure of the right ventricle or even the left ventricle. Rosmarinic acid (RA), a natural polyphenol, is commonly found in Boraginaceae species and some species of ferns and hornworts. This study looked at how RA affects oxidative stress and left ventricular hemodynamic functions as well as RVH in monocrotaline (MCT) induced RVH model rats. Materials and Methods: To cause RVH, MCT (60 mg/kg) was intraperitoneally (IP) injected. Rats were given saline or RA (10, 15, and 30 mg/kg, gavage, over 21 days). In anesthetized rats, the lead II electrocardiogram was recorded. The hemodynamic functions of the isolated heart were measured using the Langendorff apparatus (at constant pressure). Investigations were made into the right ventricular hypertrophy index (RVHI), the activities of superoxide dismutase, catalase, glutathione, and Wnt and β-catenin gene expressions in the left ventricle. H&E staining was used. Results: A significant decline in electrocardiogram parameters and anti-oxidant enzyme activities, an increase in QTc (Q-T corrected) intervals, MDA (Malondialdehyde), RVHI, and Wnt/β-catenin gene expression, and also significant changes in the hemodynamic parameters were demonstrated in the MCT group. RA improved the above-mentioned factors. Conclusion: According to the findings, RA may act as a cardioprotective agent against cardiovascular complications brought on by RVH due to its capacity to boost the activity of cardiac anti-oxidant enzymes and decrease the expression of genes involved in vascular calcification. [ABSTRACT FROM AUTHOR]
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- 2024
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27. Optimization of gas saturation calculation model for deep clastic reservoirs under strong compression stress.
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Yuan, Long, Zhang, Haining, Cao, Yuan, Yao, Junpeng, and Luo, Shaocheng
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The interpretation model for gas saturation in deep clastic reservoirs subject to intensive extrusion stress relies predominantly on experimental petrophysical data and the expanded Archie equation. Nonetheless, these methodologies may not consistently yield optimum results. Specifically, when subsurface pressure impacts formation resistivity, the resulting curve values exhibit substantial elevations, leading to significant inaccuracies in the precise estimation of gas saturation from resistivity logging data. Consequently, the evaluation of logging interpretations becomes a complex undertaking. This paper aims to comprehensively assess gas saturation in deep clastic reservoirs from both electrical and mechanical perspectives. To achieve this goal, we employ a multifaceted approach encompassing the Archie formula, the stress-corrected variable cementation index saturation model, and the resistivity-corrected saturation model. Through rigorous theoretical analysis and the utilization of simulated experimental data, a quantitative relationship equation between resistivity and stress difference has been established. Building upon this fundamental groundwork, an innovative resistivity-corrected saturation calculation model has been proposed. In comparison to the two alternative models, the new model exhibits enhanced accuracy in calculating gas saturation, as it is less influenced by extrusion stress and gravitational compaction. Furthermore, it demonstrates better consistency with core mercury injection capillary pressure data in determining gas saturation. The findings of this research provide valuable insights for the effective evaluation of deep clastic reservoirs, offering a robust framework for advancing the understanding of gas saturation in the face of complex geological and geophysical challenges. [ABSTRACT FROM AUTHOR]
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- 2024
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28. 中药抑制肝细胞癌血管生成的作用机制.
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李香香, 王 振, 杨 星, and 李素领
- Abstract
Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2024
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29. Forsythoside B alleviates cerebral ischemia-reperfusion injury via inhibiting NLRP3 inflammasome mediated by SIRT1 activation.
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Li, Qiaoyu, Zhang, Chongyang, Sun, Xiao, Wang, Mengchen, Zhang, Zhixiu, Chen, Rongchang, and Sun, Xiaobo
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REPERFUSION injury ,NLRP3 protein ,CEREBRAL infarction ,REPERFUSION ,INFLAMMASOMES ,WESTERN immunoblotting - Abstract
Background: The inflammatory response is a key factor in the pathogenesis of cerebral ischemia/reperfusion injury (CIRI), and anti-inflammatory interventions may offer a promising therapeutic strategy. Forsythoside B (FB) is a phenylethanoid glycoside isolated from Forsythiae fructus, which has been reported to have anti-inflammatory effects. However, the mechanism of the neuroprotective effect of FB on CIRI remains unclear. Methods: Adult male Sprague-Dawley rats were subjected to transient middle cerebral artery occlusion/reperfusion (MCAO/R). FB was administered intraperitoneally for 3 days prior to MCAO/R. Cerebral infarct volume and neurological deficit score were used as indices to evaluate MCAO/R injury. The serum levels of inflammatory factors and antioxidant enzymes were measured. The activation of silent information regulator 2 homolog 1 (Sirt1) and the inhibition of the nucleotide-binding oligomerization domain-like receptor with a pyrin domain 3 (NLRP3) pathway were assessed through western blot and immunohistochemistry analysis. Furthermore, the rats were treated with Sirt1 shRNA 3 days before MCAO/R by stereotactical injection into the ipsilateral hemispheric region to assess the impact of Sirt1 knockdown on the protection of FB during MCAO/R. Results: FB reduced cerebral infarct volume and neurological deficit score in MCAO/R rats. FB reduced pathological changes and cell apoptosis in the hippocampal CA1 region and cortex on the ischemic side of rats. FB inhibited the serum levels of inflammatory factors and increased the activities of antioxidant enzymes. Further study showed that FB inhibited the activation of the NLRP3 pathway and induced Sirt1 activation. Conclusion: FB demonstrated neuroprotective and anti-inflammatory effects by inhibiting the NLRP3 pathway through Sirt1 activation in CIRI. [ABSTRACT FROM AUTHOR]
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- 2024
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30. Deep transcranial magnetic stimulation for schizophrenia: a systematic review.
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Yu Mo, Zhan-Ming Shi, Xin-Hu Yang, Xian-Jun Lan, Can-Jin Deng, Xing-Bing Huang, Xiao-Lin Tan, Saxby Pridmore, Gabor S. Ungvari, Yu-Tao Xiang, and Wei Zheng
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TRANSCRANIAL magnetic stimulation ,EXECUTIVE function ,SCHIZOPHRENIA ,NEUROPSYCHOLOGICAL tests ,PATHOLOGICAL psychology ,AUDITORY hallucinations - Abstract
Background: The efficacy and safety of deep transcranial magnetic stimulation (dTMS) as an intervention for schizophrenia remain unclear. This systematic review examined the efficacy and safety of dTMS for schizophrenia. Methods: A systematic search of Chinese (WanFang and Chinese Journal Net) and English databases (PubMed, EMBASE, PsycINFO, and Cochrane Library) were conducted. Results: Three randomized clinical trials (RCTs) comprising 80 patients were included in the analyses. Active dTMS was comparable to the sham treatment in improving total psychopathology, positive symptoms, negative symptoms, and auditory hallucinations measured by the Positive and Negative Syndrome Scale (PANSS), the Scale for the Assessment of Positive Symptoms (SAPS), the Scale for the Assessment of Negative Symptoms (SANS), and the Auditory Hallucinations Rating Scale (AHRS), respectively. Only one RCT reported the effects on neurocognitive function measured by the Cambridge Neuropsychological Test Automated Battery (CANTAB), suggesting that dTMS may only improve one Stockings of Cambridge measure (i.e., subsequent times for five move problems). All three studies reported overall discontinuation rates, which ranged from 16.7% to 44.4%. Adverse events were reported in only one RCT, the most common being tingling/twitching (30.0%, 3/10), head/facial discomfort (30.0%, 3/10), and back pain (20.0%, 2/10). Conclusion: This systematic review suggests that dTMS does not reduce psychotic symptoms in schizophrenia, but it shows potential for improving executive functions. Future RCTs with larger sample sizes focusing on the effects of dTMS on psychotic symptoms and neurocognitive function in schizophrenia are warranted to further explore these findings. [ABSTRACT FROM AUTHOR]
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- 2024
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31. Effects of no-till on upland crop yield and soil organic carbon: a global meta-analysis.
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Cui, Yufei, Zhang, Weiwei, Zhang, Yun, Liu, Xinmei, Zhang, Ye, Zheng, Xiaoying, Luo, Ji, and Zou, Junliang
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CROP yields ,NO-tillage ,AGRICULTURAL conservation ,CONSERVATION tillage ,CARBON in soils ,UPLANDS ,CROP rotation - Abstract
Aims: No tillage (No-till, NT), a form of conservation agricultural management, can improve food security and alleviate world climate change by influencing crop yield and soil organic carbon (SOC), but the effects of NT on crop yields and SOC and the major factors which influence these effects remain poorly understood. Methods: We conducted a global meta-analysis using 5230 paired observations from 446 studies to evaluate the effects of NT on upland crop yield and SOC and to explore the associated influencing factors. Results: Generally, NT decreased upland crop yields by 5% (P < 0.05) and increased SOC sequestration by 9.9% (P < 0.05). Specifically, wheat and maize yields decreased by 7.7% and 2.3%, respectively. Our analyses indicate that NT combined with crop residue return and crop rotation reduced the negative effect of NT on crop yield from 5% to 2.44% and increased SOC up to 12.77%. The effects of NT on yield and SOC varied depending on the regulating factors. No-till increased yields in relatively arid areas, but reduced yields in more humid areas, whereas SOC is more likely to increase in humid regions. Soil organic carbon sequestration increased with temperature, but yield losses also increased in warmer regions. Conclusions: Our study suggests that NT combined with crop residue return and crop rotation could enhance SOC sequestration under moist and warm conditions without compromising crop yield. It may also improve soil quality and help alleviate global food security and climate change. [ABSTRACT FROM AUTHOR]
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- 2024
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32. Unmanned Aerial Vehicle (UAVs): A Novel Spraying Technique for Management of Sucking Insect Pests in Cotton Ecosystem.
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Sreenivas, A. G., Ranganath, Wazid, Vijayalakshmi, and Shivayogiyappa
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- 2024
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33. The College Admission Policy Evolution from 2003 to 2020 in China—A Social Network Analysis.
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Yan, Kun, Wu, Han, Bu, Kaiming, and Wu, Lingli
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UNIVERSITY & college admission ,ADVOCACY coalition framework ,EDUCATION policy ,DATA analysis ,HIGHER education - Abstract
To date, no empirical study has focused on understanding the evolution process of China's college admission policies and clarifying its hidden evolution logic. Based on the advocacy coalition framework (ACF), this study determines different advocacy coalitions and their belief systems during the evolution process of independent enrollment policy, as well as various driving forces that affect the process. The social network analysis methods are adopted to delineate alliance structures formed by actors with different policy beliefs in the policy subsystems which change over time. This study chooses news reports included in the China National knowledge infrastructure (CNKI) database as the data source, and identifies 328 related news reports to be coded in the analysis. This article not only provides the evolution logic of independent enrollment policy, but also bridges the research gap and therefore enriches the broad literature on the application of Advocacy Coalition Framework in Eastern countries. [ABSTRACT FROM AUTHOR]
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- 2024
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34. Harmol used for the treatment of herpes simplex virus induced keratitis.
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Xu, Huanhuan, Zhou, Nan, Huang, Zhenping, Wu, Jing, and Qian, Yajie
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HERPES simplex virus ,HUMAN herpesvirus 1 ,KERATITIS ,HERPES simplex - Abstract
Herpes simplex virus type 1 (HSV-1) infection of the eyes results in herpes simplex keratitis (HSK), which has led to vision loss and even blindness in patients. However, the rate of drug resistance in HSV is on the rise; therefore, new antiviral agents with sufficient safety profiles must be developed. At present, we assessed the anti-HSV-1 activity of 502 natural compounds and their ability to reduce the HSV-1-induced cytopathic effect. We chose harmol for further studies because it exhibited the highest antiviral activity. We found that harmol inhibited both HSV-1 F and HSV-1/153 (a clinical drug-resistant strain) replication, with an EC
50 of 9.34 µM and 5.84 µM, respectively. Moreover, harmol reduced HSV-1 replication in corneal tissues and viral progeny production in tears, and also alleviated early corneal surface lesions related to HSK. For example, harmol treatment preserved corneal thickness and nerve density in HSK mice. Interestingly, harmol also showed a promising antiviral effect on HSV-1/153 induced HSK in mouse model. Furthermore, harmol combined with acyclovir (ACV) treatment showed a greater antiviral effect than either one alone in vitro. Therefore, harmol may be a promising therapeutic agent for managing HSK. [ABSTRACT FROM AUTHOR]- Published
- 2024
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35. Cartilage tissue engineering using decellularized biomatrix hydrogel containing TGF-β-loaded alginate microspheres in mechanically loaded bioreactor.
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Bordbar, Sima, Li, Zhen, Lotfibakhshaiesh, Nasrin, Ai, Jafar, Tavassoli, Amin, Beheshtizadeh, Nima, Vainieri, Letizia, Khanmohammadi, Mehdi, Sayahpour, Forough Azam, Baghaban Eslaminejad, Mohamadreza, Azami, Mahmoud, Grad, Sibylle, and Alini, Mauro
- Subjects
CARTILAGE ,TISSUE engineering ,TRANSFORMING growth factors-beta ,ALGINATES ,HYDROGELS ,MICROSPHERES ,ALGINIC acid - Abstract
Physiochemical tissue inducers and mechanical stimulation are both efficient variables in cartilage tissue fabrication and regeneration. In the presence of biomolecules, decellularized extracellular matrix (ECM) may trigger and enhance stem cell proliferation and differentiation. Here, we investigated the controlled release of transforming growth factor beta (TGF-β1) as an active mediator of mesenchymal stromal cells (MSCs) in a biocompatible scaffold and mechanical stimulation for cartilage tissue engineering. ECM-derived hydrogel with TGF-β1-loaded alginate-based microspheres (MSs) was created to promote human MSC chondrogenic development. Ex vivo explants and a complicated multiaxial loading bioreactor replicated the physiological conditions. Hydrogels with/without MSs and TGF-β1 were highly cytocompatible. MSCs in ECM-derived hydrogel containing TGF-β1/MSs showed comparable chondrogenic gene expression levels as those hydrogels with TGF-β1 added in culture media or those without TGF-β1. However, constructs with TGF-β1 directly added within the hydrogel had inferior properties under unloaded conditions. The ECM-derived hydrogel group including TGF-β1/MSs under loading circumstances formed better cartilage matrix in an ex vivo osteochondral defect than control settings. This study demonstrates that controlled local delivery of TGF-β1 using MSs and mechanical loading is essential for neocartilage formation by MSCs and that further optimization is needed to prevent MSC differentiation towards hypertrophy. [ABSTRACT FROM AUTHOR]
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- 2024
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36. The environmental impacts and sustainable pathways of the global diamond industry.
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Sun, Yutong, Jiang, Shangrong, and Wang, Shouyang
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DIAMOND industry ,ARTIFICIAL diamonds ,MINE waste ,GREENHOUSE gas mitigation ,DIAMOND mining - Abstract
Mining diamond poses significant and potentially underestimated risks to the environment worldwide. Here, we propose a Diamond Environmental Impacts Estimation (DEIE) model to forecast the environmental indicators, including greenhouse gas (GHG) emissions, mineral waste, and water usage of the diamond industry from 2030 to 2100 in the top diamond production countries under different Shared Socio-economic Pathways (SSPs). The DEIE projection results indicate that the annual GHG emissions, mineral waste, and water usage of the global diamond industry will reach 9.65 Mt, 422.80 Mt, and 78.68 million m
3 under the SSP1-1.9 scenario, and 13.26 Mt, 582.84 Mt, and 107.95 million m3 under the SSP2-2.6 scenario in 2100, respectively. We analyze the environmental impact heterogeneities and the associated driving factors across the major diamond production countries identified by our DEIE framework. In addition, we find that lab-grown diamonds can reduce annual GHG emissions, mineral waste, and water usage by 9.58 Mt, 421.06 Mt, and 66.70 million m3 in 2100. The lab-grown diamond substitution policy can annually save 714 million cubic meters of landfill space, harvest 255 million kilograms of rice, feed 436 million people, and lift 1.19 million households out of hunger. The lab-grown diamond substitution policy could contribute to the diamond industry's GHG mitigation and sustainability efforts in a cost-saving manner. [ABSTRACT FROM AUTHOR]- Published
- 2024
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37. Digital Twin Modeling Enabled Machine Tool Intelligence: A Review.
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Zhang, Lei, Liu, Jianhua, and Zhuang, Cunbo
- Abstract
Machine tools, often referred to as the "mother machines" of the manufacturing industry, are crucial in developing smart manufacturing and are increasingly becoming more intelligent. Digital twin technology can promote machine tool intelligence and has attracted considerable research interest. However, there is a lack of clear and systematic analyses on how the digital twin technology enables machine tool intelligence. Herein, digital twin modeling was identified as an enabling technology for machine tool intelligence based on a comparative study of the characteristics of machine tool intelligence and digital twin. The review then delves into state-of-the-art digital twin modeling-enabled machine tool intelligence, examining it from the aspects of data-based modeling and mechanism-data dual-driven modeling. Additionally, it highlights three bottleneck issues facing the field. Considering these problems, the architecture of a digital twin machine tool (DTMT) is proposed, and three key technologies are expounded in detail: Data perception and fusion technology, mechanism-data-knowledge hybrid-driven digital twin modeling and virtual-real synchronization technology, and dynamic optimization and collaborative control technology for multilevel parameters. Finally, future research directions for the DTMT are discussed. This work can provide a foundation basis for the research and implementation of digital-twin modeling-enabled machine tool intelligence, making it significant for developing intelligent machine tools. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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38. Image of the five elements and prediction of the geothermal field based on gravity, magnetic and magnetotelluric data in the PanZ area.
- Author
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Zheng, Guolei, Huang, Jinshui, Zhai, Peng, and Wang, Gang
- Abstract
There are two problems in the prediction of the geothermal field in the PanZ area: (1) the plane scopes have some debates, and (2) the vertical scopes need to be further ascertained. Faced with these two problems, a complete set of methods was developed and summarized, and the details are as follows: a geothermal field can be divided into five elements, i.e., heat source, fault channel, thermal reservoir, cap rock and water; then, they are interpreted and imaged with the help of gravity, magnetic and magnetotelluric (MT) data; and finally, according to the integrity of five elements and the correlation between them, geothermal fields are predicted. In the PanZ area, (1) the normalized vertical derivative of the total horizontal derivative of the Bouguer gravity anomaly was applied to identify the fault channels; (2) the water was recognized using the joint interpretation results from an integrated geophysical profile with gravity and MT data instead of a single MT result; (3) the cap rock was inverted with the Bouguer gravity anomaly, using the Parker–Oldenburg inversion method, and with the help of the MT anomaly in the integrated geophysical profile, the vertical distribution of the geothermal reservoir was further ascertained; and (4) the intermediate acid magmatic rock with radioactivity, i.e., a heat source, was identified with the residual magnetic anomaly, imaged using the magnetic forward formula of the cuboid. Finally, the two geothermal fields were predicted and outlined using the above methods. A comparison of the distributions of the geothermal gradient and the outlet water temperatures of the drill holes indicated that the predicted results are credible. To better understand the effect of the method of predicting the geothermal field, a 3D geological model was constructed from the inverted results using GOCAD software, and the operating mechanism of geothermal system was analyzed based on the migration, storage, heating and insulation of the water element in the other four elements. To determine the reason for the formation of the geothermal field, the geological evolution of four elements was discussed, except the water element. [ABSTRACT FROM AUTHOR]
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- 2024
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39. Novel insights into thoracic endografts technology for prevention of distal stent-graft induced new entry (dSINE) following endovascular repair of type B aortic dissections: from bench to bedside.
- Author
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D'Oria, Mario, Wanhainen, Anders, Kolbel, Tilo, Yoon, William, and Mani, Kevin
- Subjects
AORTIC dissection ,ENDOVASCULAR aneurysm repair ,ENDOVASCULAR surgery - Abstract
Endovascular treatment of type B aortic dissections (TBAD) has currently acquired a primary therapeutic role when anatomically feasible. The main issue with thoracic endovascular aortic repair (TEVAR) for aortic dissection is the actual nature of the aortic wall, which is structurally compromised and more fragile. Indeed, a wealth of data have shown that TEVAR for TBAD will lead, in a substantial proportion of cases, to a device-related adverse event named distal stent-graft induced new entry (dSINE). Currently available aortic stent-grafts have not been specifically devised for the treatment of aortic dissection. A novel dissection specific stent-graft (DSSG) was developed, which is a custom-made device based on the Zenith Alpha Thoracic platform (Cook Medical). The DSSG has several unique properties that, in principle, make its use optimal in TBAD patients. TEVAR in the setting of aortic dissections remains technically challenging. The occurrence of dSINE represents a unique complication in this scenario and may lead to high rates of aortic-related adverse events and need for secondary interventions. The use of a novel custom-made DSSG in the setting of chronic TBAD has been proven to be safe, feasible and effective. However, even this approach may fail to completely prevent dSINE formation. [ABSTRACT FROM AUTHOR]
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- 2024
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40. Hierarchical gain scheduling based tilt angle guided robust control during mode transition for tilt-rotor unmanned aircraft vehicle.
- Author
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Hongyu Nie, Feng Gu, and Yuqing He
- Subjects
TILT rotor aircraft ,HIGH-speed aeronautics ,DRONE aircraft ,AUTONOMOUS vehicles ,ROBUST control - Abstract
Tilt-rotor unmanned aircraft vehicle has the potential to combine vertical take-off and landing capability with efficient, high-speed cruise flight. However, the mode transition process is risky owing to the internal continuous time change of aerodynamic and external uncertain wind disturbances. Gain scheduling between two modes is commonly used to achieve mode transition control. However, the optimal scheduling parameters to allocate the manipulated variables for the stable transition have not been determined to data. Focusing on this problem, a gain scheduling-based tilt angle guided robust control method for mode transition is proposed. The dynamic model is first built and analyzed based on a newly developed 360-kg tilt-rotor unmanned aircraft vehicle. Based on this model, the transition guided curve is mapped with respect to velocity and tilt angle, and it is introduced to the gain scheduling method to optimally achieve the allocation of the manipulated variables. Finally, the feasibility and validity are verified in a simulation experiment. Furthermore, the robustness is verified in simulated wind disturbance. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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41. Recent advances in the synthesis and application of N-heterocyclic carbene-based molecular cages.
- Author
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Chai, Qiongjie, Duan, Lixin, Ma, Yanzhe, Hou, Tianheng, and Tu, Tao
- Abstract
N-Heterocyclic carbene (NHC)-based cages have emerged as a prominent and dynamic research area within the research field of chemistry. Leveraging the distinctive electronic and steric properties of NHC ligands, the design, synthesis, and application of these corresponding cages have garnered substantial scholarly interest. In recent years, we have witnessed the successful fabrication of diverse NHC-based cages through a range of synthetic methodologies, which hold significant potential for applications in molecular recognition and catalysis. In this review, we delve into the foundational synthetic strategies that underlie the creation of NHC-based cages, employing approaches encompassing metal–NHC chelation, coordination assembly, and covalent bonding. Additionally, we compile the diverse applications of these cages within catalytic processes and molecular recognition. Lastly, we shed light on the current limitations of synthesis and outline future trends in the development of NHC-based cages. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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42. Difunctional Fluorescent Probes for Iron and Hydrogen Sulfide Detection Based on Diphenyl Derivative.
- Author
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Shang, Xuefang, Liu, Bingqing, Liu, Lixia, Wang, Jia, and Wang, Yingling
- Subjects
FLUORESCENT probes ,IRON sulfides ,DIPHENYL ,CYTOTOXINS ,HYDROGEN sulfide ,FLUORESCENCE - Abstract
In order to better monitor the content of Fe
3+ and H2 S in the biological environment, two new fluorescent probes were designed and synthesized. With the addition of Fe3+ , the strong fluorescence emission of two probes was significantly quenched due to the paramagnetic effect of Fe3+ . With the further addition of S2− , the fluorescence intensity was quickly restored. Two probes showed high selectivity and strong sensitivity for the detection of Fe3+ and S2− , and the fluorescence intensity "ON-OFF-ON" was accompanied with the interaction process. At the same time, two probes displayed good anti-interference ability which was not interfered by the existence of other ions. In addition, two probes illustrated fast response time to Fe3+ , S2− and small cytotoxicity to cells. Therefore, two probes can provide a potential ideal tool for detecting Fe3+ and H2 S in organisms and the environment. [ABSTRACT FROM AUTHOR]- Published
- 2024
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43. MSC-derived mitochondria promote axonal regeneration via Atf3 gene up-regulation by ROS induced DNA double strand breaks at transcription initiation region.
- Author
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Zhang, Yingchi, Xu, Tao, Xie, Jie, Wu, Hua, Hu, Weihua, and Yuan, Xuefeng
- Subjects
DOUBLE-strand DNA breaks ,DNA repair ,NERVOUS system regeneration ,AXONAL transport ,MESENCHYMAL stem cells ,PERIPHERAL nerve injuries ,SCIATIC nerve injuries - Abstract
Background: The repair of peripheral nerve injury poses a clinical challenge, necessitating further investigation into novel therapeutic approaches. In recent years, bone marrow mesenchymal stromal cell (MSC)-derived mitochondrial transfer has emerged as a promising therapy for cellular injury, with reported applications in central nerve injury. However, its potential therapeutic effect on peripheral nerve injury remains unclear. Methods: We established a mouse sciatic nerve crush injury model. Mitochondria extracted from MSCs were intraneurally injected into the injured sciatic nerves. Axonal regeneration was observed through whole-mount nerve imaging. The dorsal root ganglions (DRGs) corresponding to the injured nerve were harvested to test the gene expression, reactive oxygen species (ROS) levels, as well as the degree and location of DNA double strand breaks (DSBs). Results: The in vivo experiments showed that the mitochondrial injection therapy effectively promoted axon regeneration in injured sciatic nerves. Four days after injection of fluorescently labeled mitochondria into the injured nerves, fluorescently labeled mitochondria were detected in the corresponding DRGs. RNA-seq and qPCR results showed that the mitochondrial injection therapy enhanced the expression of Atf3 and other regeneration-associated genes in DRG neurons. Knocking down of Atf3 in DRGs by siRNA could diminish the therapeutic effect of mitochondrial injection. Subsequent experiments showed that mitochondrial injection therapy could increase the levels of ROS and DSBs in injury-associated DRG neurons, with this increase being correlated with Atf3 expression. ChIP and Co-IP experiments revealed an elevation of DSB levels within the transcription initiation region of the Atf3 gene following mitochondrial injection therapy, while also demonstrating a spatial proximity between mitochondria-induced DSBs and CTCF binding sites. Conclusion: These findings suggest that MSC-derived mitochondria injected into the injured nerves can be retrogradely transferred to DRG neuron somas via axoplasmic transport, and increase the DSBs at the transcription initiation regions of the Atf3 gene through ROS accumulation, which rapidly release the CTCF-mediated topological constraints on chromatin interactions. This process may enhance spatial interactions between the Atf3 promoter and enhancer, ultimately promoting Atf3 expression. The up-regulation of Atf3 induced by mitochondria further promotes the expression of downstream regeneration-associated genes and facilitates axon regeneration. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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44. Biological toxicity of sulfamethoxazole in aquatic ecosystem on adult zebrafish (Danio rerio)
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Zhou, Jie, Yun, Xiao, Wang, Jiting, Li, Qi, Wang, Yanli, Zhang, Wenjing, and Fan, Zhicheng
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This study evaluated the impacts of sulfamethoxazole (SMX) on antioxidant, immune, histopathological dynamic changes, and gut microbiota of zebrafish. SMX was carried out five groups: 0 (C), 3 mg/L (T3), 6 mg/L (T6), 12 mg/L (T12), and 24 mg/L (T24), with 5 replicates per group for an 8-weeks chronic toxicity test. It was found that SMX is considered to have low toxicity to adult zebrafish. SMX with the concentration not higher than 24 mg/L has no obvious inhibitory effect on the growth of fish. Under different concentrations of SMX stress, oxidative damage and immune system disorder were caused to the liver and gill, with the 12 and 24 mg/L concentration being the most significant. At the same time, it also causes varying degrees of pathological changes in both intestinal and liver tissues. As the concentration of SMX increases, the composition and abundance of the gut microbiota in zebrafish significantly decrease. [ABSTRACT FROM AUTHOR]
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- 2024
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45. Robust conjugate ambiguity functions and application for strictly noncircular signals in correlated impulsive noise.
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Dou, Yuzi, Abdelrhman, Omer M., Ding, Yabo, and Li, Sen
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The assumption of independent and identically distributed noise is often used in basic research, but the correlation between two additive noises cannot be ignored. Based on the characteristic of noncircular signal, the conjugate ambiguity function effectively suppresses correlated Gaussian noise, making it widely applied in signal processing scenarios involving correlated Gaussian noise. However, its performance is severely reduced when non-Gaussian impulsive noise contaminates signal sources. To handle this issue, inspired by the recently developed nonlinear preprocessing method, a new concept called inverse tangent conjugate ambiguity function, which can retain the key information of the signal from being damaged and effectively inhibit the influence of correlated impulsive noise, is defined. Then, the inverse tangent cyclic conjugate ambiguity function is further defined using the cyclostationary property, which can resist both the influence of correlated impulsive noise and co-channel interference. Employing these defined functions, we develop two novel joint time delay of arrival and frequency delay of arrival estimation algorithms. The results of Monte Carlo experiments using different impulsive noise models demonstrate that the performance of the proposed algorithms is better than their competitors, especially under the environment of correlated strong impulsive noise. [ABSTRACT FROM AUTHOR]
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- 2024
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46. ALKBH5 gene polymorphisms and risk of neuroblastoma in Chinese children from Jiangsu Province.
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Guan, Qian, Zhang, Xinxin, Liu, Jiabin, Zhou, Chunlei, Zhu, Jinhong, Wu, Haiyan, Zhuo, Zhenjian, and He, Jing
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CHINESE people ,GENETIC polymorphisms ,NEUROBLASTOMA ,SINGLE nucleotide polymorphisms ,TUMORS in children ,CHILD welfare - Abstract
Background: Neuroblastoma is one of the most common extracranial malignant solid tumors in children. AlkB homolog 5 (ALKBH5) is an RNA N6‐methyladenosine (m6A) demethylase that plays a critical role in tumorigenesis and development. We assessed the association between single nucleotide polymorphisms (SNPs) in ALKBH5 and the risk of neuroblastoma in a case‐control study including 402 patients and 473 non‐cancer controls. Methods: Genotyping was determined by the TaqMan method. The association between ALKBH5 polymorphisms (rs1378602 and rs8400) and the risk of neuroblastoma was evaluated using the odds ratio (OR) and 95% confidence interval (CI). Results: We found no strong association of ALKBH5 rs1378602 and rs8400 with neuroblastoma risk. Further stratification analysis by age, sex, primary site, and clinical stage showed that the rs1378602 AG/AA genotype was associated with a lower risk of neuroblastoma in males (adjusted OR = 0.58, 95% CI = 0.35–0.97, p = 0.036) and children with retroperitoneal neuroblastoma (adjusted OR = 0.58, 95% CI = 0.34–0.98, p = 0.040). Conclusions: ALKBH5 SNPs do not seem to be associated with neuroblastoma risk. More studies are required to confirm this negative result and reveal the relationship between gene polymorphisms of the m6A modifier ALKBH5 and neuroblastoma. [ABSTRACT FROM AUTHOR]
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- 2024
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47. Technik der Koloninterposition zum Ösophagusersatz beim Ösophaguskarzinom.
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Hoeppner, Jens
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- 2024
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48. Enhancing cotton resilience to challenging climates through genetic modifications.
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Ahmed, Ali Ijaz, Khan, Azeem Iqbal, Negm, Mohamed A. M., Iqbal, Rida, Azhar, Muhammad Tehseen, Khan, Sultan Habibullah, and Rana, Iqrar Ahmad
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TEXTILE industry ,CLIMATE change ,ABIOTIC stress ,RNA interference ,CRISPRS ,GENOME editing - Abstract
Cotton is one of the most important fiber crops that plays a vital role in the textile industry. Its production has been unstable over the years due to climate change induced biotic stresses such as insects, diseases, and weeds, as well as abiotic stresses including drought, salinity, heat, and cold. Traditional breeding methods have been used to breed climate resilient cotton, but it requires a considerable amount of time to enhance crop tolerance to insect pests and changing climatic conditions. A promising strategy for improving tolerance against these stresses is genetic engineering. This review article discusses the role of genetic engineering in cotton improvement. The essential concepts and techniques include genome editing via clustered regularly interspaced short palindromic repeats (CRISPR) / CRISPR-associated protein 9 (CRISPR-Cas9), overexpression of target genes, downregulation using RNA interference (RNAi), and virus-induced gene silencing (VIGS). Notably, the Agrobacterium-mediated transformation has made significant contributions to using these techniques for obtaining stable transgenic plants. [ABSTRACT FROM AUTHOR]
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- 2024
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49. Tolerance, adherence, and acceptability of a ketogenic 2.5:1 ratio, nutritionally complete, medium chain triglyceride‐containing liquid feed in children and adults with drug‐resistant epilepsy following a ketogenic diet.
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Griffen, Corbin, Schoeler, Natasha E., Browne, Robert, Cameron, Tracy, Kirkpatrick, Martin, Thowfeek, Seema, Munn, Judith, Champion, Helena, Mills, Nicole, Phillips, Siân, Air, Linda, Devlin, Anita, Nicol, Claire, Macfarlane, Susan, Bittle, Victoria, Thomas, Phillipa, Cooke, Lisa, Ackril, Julia, Allford, Astrid, and Appleyard, Vanessa
- Abstract
Objective: To investigate incorporating a ready‐to‐use 2.5:1 ratio liquid feed into a ketogenic diet (KD) in children and adults with drug‐resistant epilepsy. Methods: Following a three‐day baseline, patients (n = 19; age: 19 years [SD 13], range: 8–46 years) followed a KD for 28 days (control period), then incorporated ≥200 mL/day of a ready‐to‐use liquid feed, made with a ratio of 2.5 g of fat to 1 g of protein plus carbohydrate and including medium chain triglycerides ([MCTs]; 25.6% of total fat/100 mL) for 28 days as part of their KD (intervention period). Outcome measures (control vs intervention period) included gastrointestinal (GI) tolerance, adherence to KD and intervention feed, dietary intake, blood ß‐hydroxybutyrate (BHB) concentration, seizure outcomes, health‐related quality of life (HRQoL), acceptability and safety. Results: Compared to the control period, during the intervention period, the percentage of patients reporting no GI symptoms increased (+5% [SD 5], p = 0.02); adherence to the KD prescription was similar (p = 0.92) but higher in patients (n = 5) with poor adherence (<50%) to KD during the control period (+33% [SD 26], p = 0.049); total MCT intake increased (+12.1 g/day [SD 14.0], p = 0.002), driven by increases in octanoic (C8; +8.3 g/day [SD 6.4], p < 0.001) and decanoic acid (C10; +5.4 g/day [SD 5.4], p < 0.001); KD ratio decreased (p = 0.047), driven by a nonsignificant increase in protein intake (+11 g/day [SD 44], p = 0.29); seizure outcomes were similar (p ≥ 0.63) but improved in patients (n = 6) with the worst seizure outcomes during the control period (p = 0.04); and HRQoL outcomes were similar. The intervention feed was well adhered to (96% [SD 8]) and accepted (≥88% of patients confirmed). Significance: These findings provide an evidence‐base to support the effective management of children and adults with drug‐resistant epilepsy following a KD with the use of a ready‐to‐use, nutritionally complete, 2.5:1 ratio feed including MCTs. Plain language summary: This study examined the use of a ready‐to‐use, nutritionally complete, 2.5:1 ratio (2.5 g of fat to 1 g of protein plus carbohydrate) liquid feed, including medium chain triglycerides (MCTs), into a ketogenic diet (KD) in children and adults with drug‐resistant epilepsy. The results show that the 2.5:1 ratio feed was well tolerated, adhered to, and accepted in these patients. Increases in MCT intake (particularly C8 and C10) and improvements in seizure outcomes (reduced seizure burden and intensity) and KD adherence also occurred with the 2.5:1 ratio feed in patients with the worst seizures and adherence, respectively. [ABSTRACT FROM AUTHOR]
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- 2024
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50. Promising sponge derived marine fungi as antibacterial and biofilm inhibitors.
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Wigati, Dyan, Setyowati, Erna Prawita, Pratiwi, Sylvia Utami Tunjung, and Nugraha, Ari Satia
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- 2024
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