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  1. Article ; Online: New device multisegment Mechanical Thrombectomy System for endovascular treatment in acute ischaemic stroke

    Tengfei Zhou / Yingkun He / Tianxiao Li / Zhaoshuo Li / Hailong Zhong

    BMJ Open, Vol 12, Iss

    study protocol for a prospective, multicentre, randomised controlled trial

    2022  Volume 11

    Abstract: Introduction Endovascular treatment is the standard of care for acute large vessel occlusion (LVO) in the anterior circulation. However, successful complete recanalisation is considerably difficult when the vessels are severely tortuous. At the bend, the ...

    Abstract Introduction Endovascular treatment is the standard of care for acute large vessel occlusion (LVO) in the anterior circulation. However, successful complete recanalisation is considerably difficult when the vessels are severely tortuous. At the bend, the stent retriever can distort, collapse and lose its ability to capture the clot due to structural change. The aim of the present study is to evaluate the safety and efficacy of the new thrombectomy device multisegment Mechanical Thrombectomy (MT) System for endovascular treatment of acute ischaemic stroke (AIS).Methods and analysis The present study is a prospective, multicentre, randomised controlled trial conducted in 11 stroke centres in China. The safety and efficacy of vascular recanalisation in patients with AIS who will be treated with a new thrombectomy device-multi-segment MT System or with Solitare FR within 8 hours of symptom onset will be compared. A total of 238 subjects who met the inclusion and exclusion criteria will be randomised into either a treatment group or a control group by an internet-based Central Random System in a 1:1 manner, and 30 subjects will be recruited into the small sample study. SAS V.9.4 statistical software will be used for statistical analysis of the primary endpoint indicators and other indicators.Ethics and dissemination The study involving human participants was reviewed and approved by the Ethics Committee of Drugs (devices) Clinical Experiment in Henan Provincial People’s Hospital (reference number: AF/SC-07/04.0) and other research centres participating in the clinical trial. The results yielded from this study will be presented at international conferences and sent to a peer-review journal to be considered for publication. The Standard Protocol Items: Recommendations for Interventional Trials checklist was utilised when drafting the study protocol.Trial registration number Registry on 10 September 2021 with Chinese clinical trial registry: ChiCTR2100051048.
    Keywords Medicine ; R
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher BMJ Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Evaluation of the water resource carrying capacity in Heilongjiang, eastern China, based on the improved TOPSIS model

    Bo Lv / Changrong Liu / Tianxiao Li / Fanxiang Meng / Qiang Fu / Yi Ji / Renjie Hou

    Ecological Indicators, Vol 150, Iss , Pp 110208- (2023)

    2023  

    Abstract: Assessments and analyses of the water resource carrying capacity provide practical guidance for regional water resource planning and water resource management. The water resource carrying capacity index system and the corresponding level criteria are ... ...

    Abstract Assessments and analyses of the water resource carrying capacity provide practical guidance for regional water resource planning and water resource management. The water resource carrying capacity index system and the corresponding level criteria are constructed from the perspective of the carrying capacity subsystem. Additionally, a water resource carrying capacity model is constructed using the improved TOPSIS method. Finally, a comprehensive evaluation and analysis of the water resource carrying capacity in the study area from 2009 to 2018 is conducted, with the eastern part of Heilongjiang as a case study. The results show that the combination of the improved AHP and the anti-entropy weighting method can avoid the bias caused by subjective factors in the traditional AHP and the bias caused by the randomness of data in the entropy weighting method, yielding accurate estimates of the water resource carrying capacity. A new method of assigning weights in TOPSIS models is developed. In addition, the water resource carrying capacity of the studied cities is generally in state III (Moderate) in the eastern region of Heilongjiang, and the multiyear average value obtained from the comprehensive evaluation is 0.4581. The Qitaihe and Hegang areas have higher water resource carrying capacities than other areas. Overall, water resource and societal factors have an obvious influence on the water resource carrying capacity in the eastern region of Heilongjiang, and these factors vary in different areas. The water supply modulus and proportion of water used for agricultural irrigation have the greatest effects on the water resource carrying capacity in the study area.
    Keywords Water resource carrying capacity ; Evaluation index system ; Improved AHP–anti-entropy weighting method ; TOPSIS method ; Heilongjiang ; Ecology ; QH540-549.5
    Subject code 333
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Impacts of Low-Carbon Targets and Hydrogen Production Alternatives on Energy Supply System Transition

    Tianxiao Li / Pei Liu / Zheng Li

    Processes, Vol 9, Iss 1, p

    An Infrastructure-Based Optimization Approach and a Case Study of China

    2021  Volume 160

    Abstract: Low-carbon transition pathways oriented from different transition targets would result in a huge variation of energy system deployment and transition costs. Hydrogen is widely considered as an imperative energy carrier to reach carbon neutral targets. ... ...

    Abstract Low-carbon transition pathways oriented from different transition targets would result in a huge variation of energy system deployment and transition costs. Hydrogen is widely considered as an imperative energy carrier to reach carbon neutral targets. However, hydrogen production, either from non-fossil power or fossil fuels with carbon capture, is closely linked with an energy supply system and has great impacts on its structure. Identifying an economically affordable transition pathway is attractive, and energy infrastructure is critical due to massive investment and long life-span. In this paper, a multi-regional, multi-period, and infrastructure-based model is proposed to quantify energy supply system transition costs with different low-carbon targets and hydrogen production alternatives, and China is taken as a case study. Results show that, fulfilling 2-degree and 1.5-degree temperature increase targets would result in 84% and 151% increases in system transition costs, 114% and 246% increases in infrastructure investment, and 211% and 339% increases in stranded investment, compared to fulfilling stated policy targets. Producing hydrogen from coal would be economical when carbon capture and sequestration cost is lower than 437 yuan per tonne, and reduce infrastructure investment and stranded coal investment by 16% and 35% respectively, than producing hydrogen from renewable power.
    Keywords energy supply system ; transition costs ; transition target ; infrastructure ; hydrogen ; optimization ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Recanalization of chronic long-segment occlusion of the internal carotid artery with endovascular and hybrid surgery

    Wei Ren / Jiangyu Xue / Tongyuan Zhao / Gangqin Xu / Bowen Yang / Tianxiao Li / Bulang Gao

    Scientific Reports, Vol 13, Iss 1, Pp 1-

    2023  Volume 10

    Abstract: Abstract To investigate the effect of endovascular and/or hybrid surgical recanalization on chronic long-segment occlusion of the internal carotid artery (ICA) and the effect of occlusion location on the recanalization rate and prognosis, 87 patients ... ...

    Abstract Abstract To investigate the effect of endovascular and/or hybrid surgical recanalization on chronic long-segment occlusion of the internal carotid artery (ICA) and the effect of occlusion location on the recanalization rate and prognosis, 87 patients with chronic ICA occlusion treated with endovascular approach only or hybrid surgery were retrospectively enrolled. The duration of ICA occlusion ranged from 21 to 360 days (median 30). Type I occlusion (from the neck to below the cavernous segment) consisted of 46 (52.8%) patients while type II (from the neck to above the clinoid segment) of 41 (47.1%). Hybrid surgery was performed in 44 (50.6%) patients while endovascular recanalization only was conducted in the other 43 (49.4%). In all patients, the success rate of recanalization was 93.0% (40/43) for the endovascular approach and 95.5% for the hybrid surgical approach. In patients with type I occlusion, endovascular recanalization only was performed in 22 (47.8%) patients and hybrid surgery in 24 (52.2%), resulting in successful recanalization in all patients (100%). In patients with type II occlusion, the success rate of recanalization was 85.7% (18/21) for the endovascular approach only but 90% (18/20) for the hybrid surgery. The total success rate of recanalization was 94.3% (82/87) for all patients, 100% for type I occlusion, and 87.8% for type II occlusion. No significant (P = 0.12) differences existed in the recanalization rate between groups I and II. Clinical follow-up was performed in 82 (94.3%) patients 6–39 months (mean 16) after the surgery. Re-occlusion occurred in 0 in group I but in four (9.8%) in group II. The mRS was good with 0–2 in 38 (82.6%) patients in group I and in 27 (75%) patients in group II, with no significant (P = 0.78) difference. In conclusion, chronic long-segment ICA occlusion can be safely and efficiently recanalized with the endovascular and hybrid surgery. The location of ICA occlusion may have a critical role in determining the recanalization rate, and careful evaluation of ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 616
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Drip irrigation reduces the toxicity of heavy metals to soybean

    Yuhao Zhang / Tianxiao Li / Qiang Fu / Renjie Hou / Mo Li / Dong Liu / Guoxin Shi / Xuechen Yang / Ping Xue

    Agricultural Water Management, Vol 292, Iss , Pp 108670- (2024)

    By moving heavy metals out of the root zone and improving physiological metabolism

    2024  

    Abstract: Excessive heavy metal content in soil can seriously hinder plant physiological metabolism and growth. This study, with soybean, examined how drip irrigation reduced heavy metal toxicity. The drip irrigation experiments with four irrigation frequencies ... ...

    Abstract Excessive heavy metal content in soil can seriously hinder plant physiological metabolism and growth. This study, with soybean, examined how drip irrigation reduced heavy metal toxicity. The drip irrigation experiments with four irrigation frequencies were conducted by controlling the lower limit of the soil matric potential (D1: −10 kPa; D2: −20 kPa; D3: −30 kPa; D4: −40 kPa). Through comparison with traditional surface irrigation, the effects of drip irrigation on heavy metal distribution, soybean growth status, physiological metabolism and transcriptome under Cd, Pb and Cr(VI) composite pollution were comprehensively analyzed. The results show that (i) The Cd, Pb and Cr(IV) in soil migrated away from the plant under drip irrigation, thereby reducing the inhibition of heavy metal stress on soybean growth at the root, among which D1 had the best improvement effect on soybean growth. (ii) Drip irrigation improved the resistance of soybean to heavy metal stress, and promoted the transport and fixation of free Cd2+, Pb2+ and Cr6+ in cells, thereby reducing the damage of oxidative stress and heavy metal ions to cell structure. (iii) Drip irrigation was conducive to the energy supply and protein stability of cell physiological metabolism, which helped the improvement of soybean physiological activity. Overall, compared with surface irrigation, drip irrigation reduced the toxicity of heavy metals to soybeans by moving heavy metals out of the root zone and enhancing physiological activity. The results of this study can provide a theoretical basis for the application of drip irrigation technology in the prevention and control of heavy metal pollution, and provide a new strategy for the safe production of agriculture.
    Keywords Heavy metal stress ; Cell ultrastructure ; Physiological characteristics ; Transcriptome ; Agriculture (General) ; S1-972 ; Agricultural industries ; HD9000-9495
    Subject code 571
    Language English
    Publishing date 2024-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: The effect of propylene glycol addition on the flavour compounds retention of peppermint powders

    Chun, Cui / Mingqi, Gao / Xuewei, Jia / Bingjie, Ma / Tianxiao, Li / Shu, Tian / Chunping, Xu

    Flavour and Fragrance Journal. 2023 July, v. 38, no. 4 p.336-346

    2023  

    Abstract: Compared with peppermint oil, natural peppermint has more ingredients, a layered fragrance, and a green colour. It has been widely used as a nutritional additive, herbal tea, food flavouring or colouring. In this work, the retention of volatile flavour ... ...

    Abstract Compared with peppermint oil, natural peppermint has more ingredients, a layered fragrance, and a green colour. It has been widely used as a nutritional additive, herbal tea, food flavouring or colouring. In this work, the retention of volatile flavour compounds of peppermint powders was enhanced by propylene glycol, a reagent that enhances hydrogen bonds and moisture absorption. The levels of influence of propylene glycol content on the retention of different volatile flavour compounds, moisture absorption and water distribution were evaluated by GC–MS, dynamic water absorption instrument (DVS), and low‐field nuclear magnetic resonance (LF‐NMR), respectively. GC–MS analysis showed that the volatile substances of peppermint powders (PMs) without propylene glycol were reduced to 22 kinds after storage for 90 days, and the total amount of volatile substances remained at 40.94%; PG2 with 2% propylene glycol had the best flavour retention. After 90 days of storage, the residual percentage of volatile flavour compounds of PG2 was approximately 72.56%, which was significantly increased compared with that of PM. The DVS results suggested that all the peppermint powders adopted a type III moisture absorption isotherm, and they all had multilayer adsorbed water. PG2 had the best moisture retention capacity and the highest hygroscopic hysteresis, while PG4 with a high propylene glycol content had a relatively poor moisture retention capacity. Similarly, LF‐NMR analysis showed that PG2 had a higher proportion of bound water and lower relaxation times T₂₁ and T₂₂ under different humidity conditions, indicating that it had the strongest water binding capacity. The correlation analysis showed that there was a significant positive correlation between the residual volatile compounds of peppermint powders and the peak area of bound water A₂₁. The higher the proportion of strongly bound water in peppermint particles was, the more residual volatile substances were identified in peppermint particles. These results show that peppermint particles supplemented with propylene glycol can significantly improve the flavour retention ability of peppermint powders. In short, the results could be applied to the storage stability and quality control of peppermint products.
    Keywords Mentha piperita nothosubsp. piperita ; absorption ; bound water ; color ; flavor ; herbal tea ; humidity ; hydrogen ; hysteresis ; nuclear magnetic resonance spectroscopy ; odors ; peppermint oil ; propylene glycol ; quality control ; storage quality ; water distribution ; water uptake
    Language English
    Dates of publication 2023-07
    Size p. 336-346.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 54356-1
    ISSN 0882-5734
    ISSN 0882-5734
    DOI 10.1002/ffj.3740
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Variability of Soil Water Heat and Energy Transfer Under Different Cover Conditions in a Seasonally Frozen Soil Area

    Fanxiang Meng / Renjie Hou / Tianxiao Li / Qiang Fu

    Sustainability, Vol 12, Iss 5, p

    2020  Volume 1782

    Abstract: In a seasonally frozen soil area, there is frequent energy exchange between soil and environment, which changes the hydrological cycle process, and then has a certain impact on the prediction and management of agricultural soil moisture. To reveal the ... ...

    Abstract In a seasonally frozen soil area, there is frequent energy exchange between soil and environment, which changes the hydrological cycle process, and then has a certain impact on the prediction and management of agricultural soil moisture. To reveal the effects of different modes of regulation on the energy budget of soil in a region with seasonally frozen soil, four treatments, including the regulation of bare land (BL), biochar (CS), and straw (JS), and the combined regulation of biochar and straw (CJS), were used in field experiments. The variations in the soil temperature, liquid water content, and total water content were analyzed, the energy budget of the soil was calculated, the response functions of the soil energy were determined, and the mechanism of soil energy transfer was elucidated. The results showed that, during the freezing period, the JS treatment reduced the amplitudes of the variations in the soil temperature and liquid water content and increased the water content at the soil surface. During the thawing period, the CJS treatment effectively improved the soil hydrothermal conditions. During the freezing period, the heat absorbed by the CS and JS treatments reduced the fluctuation of the soil energy budget. At a soil depth of 10 cm, the spectral entropy of a time series of the soil net energy was 0.837 under BL treatment, and the CS, JS, and CJS treatments decreased by 0.015, 0.059, and 0.045, respectively, compared to the BL treatment. During the thawing period, the CS treatment promoted energy exchange between the soil and the external environment, and the spectral entropy of a time series of the soil net energy was increased; the JS treatment had the opposite effect. The CJS treatment weakened the impact of environmental factors on the soil energy budget during the freezing period, while it enhanced the energy exchange between the soil and the environment during the thawing period. This study can provide important theoretical and technical support for the efficient utilization of soil ...
    Keywords seasonally frozen soil area ; soil water heat ; energy transfer ; energy budget ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 630
    Language English
    Publishing date 2020-02-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Ameliorating Effects of Soil Aggregate Promoter on the Physicochemical Properties of Solonetzes in the Songnen Plain of Northeast China

    Qiyang Fu / Fanxiang Meng / Yuan Zhang / Zongliang Wang / Tianxiao Li / Renjie Hou

    Sustainability, Vol 14, Iss 5747, p

    2022  Volume 5747

    Abstract: Freeze–thaw cycles cause serious soil erosion, which makes the prevention, control and management of solonetzic lands in the Songnen Plain challenging. The use of soil-aggregate-promoter (SAP) is highly favoured because of its energy-saving and efficient ...

    Abstract Freeze–thaw cycles cause serious soil erosion, which makes the prevention, control and management of solonetzic lands in the Songnen Plain challenging. The use of soil-aggregate-promoter (SAP) is highly favoured because of its energy-saving and efficient characteristics; however, SAP is rarely used in the improvement of solonetzic soil in cold regions. To fill this gap, we studied the effects of different experimental conditions on the physicochemical properties of solonetzes; the investigated conditions included the number of laboratory-based freeze–thaw cycles (with 0, 1, 3, and 5 cycles), initial moisture content (0%, 18%, 24%, and 30%) and SAP application amount (0 g/m 2 , 0.75 g/m 2 , 1.125 g/m 2 , and 1.5 g/m 2 ). The results showed the following: (1) The soil pH value decreased significantly as the SAP application rate increased, and the effect of the initial moisture content and number of freeze–thaw cycles on soil pH was not significant. (2) SAP effectively reduced the soil electrical conductivity (EC), but a certain threshold was apparent, and the factors studied had significant effects on EC. (3) SAP effectively optimised the soil macroaggregates content and inhibited the damage posed by freeze–thaw cycles to the soil structure. These results provide an important theoretical basis for the effective prevention and control of solonetzes in the Songnen Plain of Northeast China.
    Keywords solonetzic soil ; freeze–thaw cycle ; soil aggregate promoter ; soil physicochemical properties ; Songnen Plain ; China ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 630
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: A decoupling analysis framework for agricultural sustainability and economic development based on virtual water flow in grain exporting

    Yaowen Xu / Xinru Man / Qiang Fu / Mo Li / Haiyan Li / Tianxiao Li

    Ecological Indicators, Vol 141, Iss , Pp 109083- (2022)

    2022  

    Abstract: With the growth in the agricultural economy, the problem of agricultural sustainability has become increasingly prominent. This study proposes a decoupling analysis framework for economic development and multidimensional sustainability indicators in ... ...

    Abstract With the growth in the agricultural economy, the problem of agricultural sustainability has become increasingly prominent. This study proposes a decoupling analysis framework for economic development and multidimensional sustainability indicators in grain exporting by integrating the Tapio decoupling model with virtual water (VW) theory, the Logarithmic Mean Divisia Index (LMDI) model and the footprint method. This framework is advantageous for coordinating research on the problems of virtual water flow (VWF) and ecological consumption for different grains, decoupling economic development and multidimensional sustainability indicators, and identifying key drivers that promote decoupling and curb VW consumption. This framework is applied to a real-world case study in Heilongjiang Province, China. The results show that (1) the final water consumption coefficient of agriculture is the major positive influencing factor of VWF in grain exporting; (2) increasing the export volume of rice and corn instead of soybeans is beneficial for improving agricultural sustainability; and (3) promoting the coordination of multidimensional sustainability indicators effectively improves decoupling levels and relies on the contradiction between agricultural economic growth and environmental sustainability relief in the grain trade rather than on a single index.
    Keywords Decoupling ; Virtual water ; Grain exports ; Agricultural sustainability ; Ecology ; QH540-549.5
    Subject code 333
    Language English
    Publishing date 2022-08-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Biodiversity and application prospects of fungal endophytes in the agarwood-producing genera, Aquilaria and Gyrinops (Thymelaeaceae)

    Tianxiao Li / Zidong Qiu / Shiou Yih Lee / Xiang Li / Jiaqi Gao / Chao Jiang / Luqi Huang / Juan Liu

    Arabian Journal of Chemistry, Vol 16, Iss 1, Pp 104435- (2023)

    A review

    1480  

    Abstract: Agarwood is originated from the resinous part of Aquilaria and Gyrinops plants and has been a precious biomaterial for applications in traditional medicine, perfumery, cosmetics, and religious purposes all over the world. In the wild, the formation of ... ...

    Abstract Agarwood is originated from the resinous part of Aquilaria and Gyrinops plants and has been a precious biomaterial for applications in traditional medicine, perfumery, cosmetics, and religious purposes all over the world. In the wild, the formation of agarwood is related to the defense mechanism of the tree in response to physical damage that allows further microbial infestation into its wood, while having the whole tree covered with agarwood would take up a long time, and it rarely happens. For Aquilaria and Gyrinops, the presence of endophytes is mainly found derived from the tree. The isolated endophytes could be important sources of natural products, while some could contribute to the formation of agarwood in the tree, which is safe for the environment and human health. This review summarized the biodiversity of fungal endophytes recorded in Aquilaria and Gyrinops and their potential effects on host trees. Till now, 67 endophytic genera have been isolated from Aquilaria and Gyrinops, and 18 ones were found responsible for the promotion of agarwood formation. Additionally, 92 compounds have been reported to be produced by the agarwood endophytes, and 52 ones displayed biological activities, most of which have anti-inflammatory, anti-bacterial, and anti-cancer activities. Nevertheless, fungal endophytes are promising agents that deserved to be further studied and scaled up to a commercial level for the production of agarwood oil, but the role of endophytes in the agarwood host trees needs to be furtherly investigated in future studies.
    Keywords Agarwood ; Fungal endophytes ; Aquilaria ; Gyrinops ; Chemistry ; QD1-999
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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