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  1. Article ; Online: Research progress and hotspots of cultivated land use efficiency in China and internationally:Based on a bibliometric analysis

    LIU Ke, ZHANG Anlu

    Ziyuan Kexue, Vol 45, Iss 3, Pp 494-

    2023  Volume 511

    Abstract: Objective] The research on cultivated land use efficiency has received widespread attention from scholars both in China and internationally. Exploring the research hotspots and development trends in the world will provide a new perspective and direction ...

    Abstract [Objective] The research on cultivated land use efficiency has received widespread attention from scholars both in China and internationally. Exploring the research hotspots and development trends in the world will provide a new perspective and direction for future research of cultivated land use efficiency and land use practice. [Methods] Based on the relevant literature collected by the China National Knowledge Infrastructure (CNKI) and Web of Science (WOS) databases, this study used the CiteSpace software to conduct visual analysis from the aspects of authors, research institutions, and keywords to systematically analyze the evolution and hotspots of the research on cultivated land use efficiency in China and internationally. [Results] The research results show that: (1) Research in China can be divided into initial exploration stage and stable development stage, while international research can be divided into initial exploration stage and rapid development stage. (2) Chinese researchers and institutions played a leading role in this research field, the overall international research capacity is weak, and cooperation across institutions needs to be strengthened. (3) International research mainly focuses on agriculture, land, and ecological environment, while Chinese research also involves resources and environment as well as arid areas. (4) International research topics can be divided into improving the cultivated land use efficiency and crop production, while Chinese research topics can be divided into specific regions and yields and efficiency of cultivated land use factors. (5) The main themes of relevant research is food security issues-evaluation of cultivated land use efficiency-research scale differences-investigation of constraints, and the research objectives and mechanisms of influence are diversified. [Conclusion] China’s research on cultivated land use efficiency should be strengthened, and the international academic community should pay more attention to the issue of cultivated land use ...
    Keywords |cultivated land use efficiency|research progress|hotspot analysis|bibliometrics|citespace ; Environmental sciences ; GE1-350 ; Biology (General) ; QH301-705.5
    Subject code 001
    Language Chinese
    Publishing date 2023-03-01T00:00:00Z
    Publisher Science Press, PR China
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Underwater optical image enhancement based on super-resolution convolutional neural network and perceptual fusion.

    Liu, Ke / Liang, Yongquan

    Optics express

    2023  Volume 31, Issue 6, Page(s) 9688–9712

    Abstract: Underwater optical images often have serious quality degradations and distortions, which hinders the development of underwater optics and vision systems. Currently, there are two mainstream solutions: non-learning based and learning-based. Both have ... ...

    Abstract Underwater optical images often have serious quality degradations and distortions, which hinders the development of underwater optics and vision systems. Currently, there are two mainstream solutions: non-learning based and learning-based. Both have their advantages and disadvantages. To fully integrate the advantages of both, we propose an enhancement method based on superresolution convolutional neural network (SRCNN) and perceptual fusion. First, we introduce a weighted fusion BL estimation model with a saturation correction factor (SCF-BLs fusion), the accuracy of image prior information is improved effectively. Next, a refined underwater dark channel prior (RUDCP) is proposed, which combines guided filtering and an adaptive reverse saturation map (ARSM) to restore the image, which not only preserves edge details but also avoids the interference of artificial light. Then, the SRCNN fusion adaptive contrast enhancement is proposed to enhance the colour and contrast. Finally, to further enhance image quality, we employ efficient perceptual fusion to blend the different resulting outputs. Extensive experiments demonstrate that our method has outstanding visual results in underwater optical image dehazing, color enhancement and is artefact- and halo-free.
    Language English
    Publishing date 2023-05-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.482489
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Reduction of Lower Cervical Facet Dislocation: A Review of All Techniques.

    Liu, Ke / Zhang, Zhengfeng

    Neurospine

    2023  Volume 20, Issue 1, Page(s) 181–204

    Abstract: Objective: The surgical treatment of lower cervical facet dislocation is controversial. Great advancements on reduction techniques for lower cervical facet dislocation have been made in the past decades. However, there is no article reviewing all the ... ...

    Abstract Objective: The surgical treatment of lower cervical facet dislocation is controversial. Great advancements on reduction techniques for lower cervical facet dislocation have been made in the past decades. However, there is no article reviewing all the reduction techniques yet. The aim is to review the evolution and advancements of the reduction techniques for lower cervical facet dislocation.
    Methods: The application of all reduction techniques for lower cervical facet dislocation, including closed reduction, anterior-only, posterior-only, and combined approach reduction, is reviewed and discussed. Recent advancements on the novel techniques of reduction are also described. The principles of various techniques for reduction of cervical facet dislocation are described in detail.
    Results: All reduction techniques are useful. The anterior-only surgical approach appears to be the most popular approach. Moreover, many novel or modified reduction and fixation methods have been introduced in recent years.
    Conclusion: The selection of surgical approach depends on a combination of factors, including surgeon preference, patient factors, injury morphology, and inherent advantages and disadvantages of any given approach.
    Language English
    Publishing date 2023-03-31
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 3031654-6
    ISSN 2586-6591 ; 2586-6583
    ISSN (online) 2586-6591
    ISSN 2586-6583
    DOI 10.14245/ns.2244852.426
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Opportunities for Neuroprotective Drugs in the Era of Vascular Recanalization.

    Qi, Zhifeng / Liu, Ke Jian

    Translational stroke research

    2023  Volume 15, Issue 2, Page(s) 333–334

    MeSH term(s) Neuroprotective Agents/therapeutic use ; Treatment Outcome
    Chemical Substances Neuroprotective Agents
    Language English
    Publishing date 2023-01-18
    Publishing country United States
    Document type Letter
    ZDB-ID 2541897-X
    ISSN 1868-601X ; 1868-4483
    ISSN (online) 1868-601X
    ISSN 1868-4483
    DOI 10.1007/s12975-023-01128-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Developing a nomogram model and prognostic analysis of nasopharyngeal squamous cell carcinoma patients: a population-based study.

    Liu, Ke / Wang, Juan

    Journal of cancer research and clinical oncology

    2023  Volume 149, Issue 13, Page(s) 12165–12175

    Abstract: Background: Nasopharyngeal squamous cell carcinoma (NPSCC) is a common histo-logical subtype of nasopharyngeal cancer with a generally poor prognosis. The aim of this study is to identify factors affecting the survival prognosis of NPSCC patients and ... ...

    Abstract Background: Nasopharyngeal squamous cell carcinoma (NPSCC) is a common histo-logical subtype of nasopharyngeal cancer with a generally poor prognosis. The aim of this study is to identify factors affecting the survival prognosis of NPSCC patients and develop a specialized nomogram model.
    Methods: We extracted clinical data of 1235 diagnosed cases of NPSCC from the SEER database using SEER*Stat software. Univariate and multivariate Cox proportional hazards regression analyses were conducted to explore clinical factors that impact the prognosis of NPSCC patients. Based on significant independent factors, we developed a nomogram to predict the 1, 3, and 5 years overall survival rates. The discriminative and predictive abilities of the nomogram were evaluated using C-index, calibration curve, area under the curve (AUC), and receiver operating characteristic curve. We evaluated the clinical value of the nomogram using decision curve analysis (DCA) and clinical impact curve (CIC).
    Results: We performed a cohort analysis on 846 patients with nasopharyngeal cancer in the training cohort. Multivariate Cox regression analysis revealed age, race, marital status, primary tumor, radiation therapy, chemotherapy, SJCC stage, primary tumor size, Lung metastasis and brain metastasis as independent prognostic factors for NPSCC patients, which we used to construct the nomogram prediction model. The C-index of the training cohort was 0.737. The ROC curve analysis indicated that the AUC of the OS rate at 1, 3, and 5 years in the training cohort was > 0.75. The calibration curves of the two cohorts showed good consistency between the predicted and observed results. DCA and CIC demonstrated that the nomogram prediction model had good clinical benefits.
    Conclusions: The nomogram risk prediction model for NPSCC patient survival prognosis, constructed in this study, has exhibited excellent predictive capability. This model can be employed for swift and precise assessment of individualized survival prognosis. It can offer valuable guidance to clinical physicians in diagnosing and treating NPSCC patients.
    MeSH term(s) Humans ; Prognosis ; Nomograms ; Nasopharyngeal Neoplasms/diagnosis ; Nasopharyngeal Neoplasms/therapy ; Nasopharyngeal Carcinoma ; Squamous Cell Carcinoma of Head and Neck ; Head and Neck Neoplasms ; SEER Program
    Language English
    Publishing date 2023-07-10
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 134792-5
    ISSN 1432-1335 ; 0171-5216 ; 0084-5353 ; 0943-9382
    ISSN (online) 1432-1335
    ISSN 0171-5216 ; 0084-5353 ; 0943-9382
    DOI 10.1007/s00432-023-05120-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Connective tissue disease as a challenge in heart failure: Three case reports.

    Liu, Ke / Li, Xuejiao / Li, Dan

    Medicine

    2024  Volume 103, Issue 3, Page(s) e36885

    Abstract: Rationale: Connective tissue disease (CTD) is a heterogeneous group of chronic inflammatory autoimmune disorders derived from a systemically auto-immunological deregulation. CTD may affect cardiac structures through multiple pathophysiological ... ...

    Abstract Rationale: Connective tissue disease (CTD) is a heterogeneous group of chronic inflammatory autoimmune disorders derived from a systemically auto-immunological deregulation. CTD may affect cardiac structures through multiple pathophysiological mechanisms, and subclinical cardiac injury is common. Heart failure (HF) is one of the common complications in these patients.
    Patient concerns: Patients with CTD suffer an increased risk of cardiovascular disease and may have chest pain and shortness of breath.
    Diagnosis: HF is characterized by dyspnea or exertional limitation due to impaired ventricular filling and/or blood ejection. HF can be caused by other systemic diseases, not only by cardiovascular disorders but CTD. CTD may cause HF due to diffuse myocardial damage, heart valve damage, coronary ischemia, and so on.
    Interventions: The patient with catastrophic antiphospholipid syndrome take prednisone and warfarin. The patient with anti-synthetase syndrome was treated with immunoglobulin, followed by long-term oral medicines of prednisone, methotrexate, and folic acid.
    Outcomes: The symptoms of chest pain and shortness of breath for patients with CTD improved.
    Lessons: HF is one of the common complications in these patients with CTD, which has poor prognosis and severe aggravation. Once such patients experience chest pain, chest tightness, shortness of breath, etc, we should consider the possibility of HF. Early identification and correct treatment can delay the progression of HF, improve the prognosis, and enhance the quality of life for patients. Therefore, we should pay more attention to patients with CTD combined with HF.
    MeSH term(s) Humans ; Prednisone ; Quality of Life ; Connective Tissue Diseases/complications ; Heart Failure/etiology ; Heart Failure/complications ; Dyspnea/complications ; Chest Pain/complications
    Chemical Substances Prednisone (VB0R961HZT)
    Language English
    Publishing date 2024-01-19
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80184-7
    ISSN 1536-5964 ; 0025-7974
    ISSN (online) 1536-5964
    ISSN 0025-7974
    DOI 10.1097/MD.0000000000036885
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Recent insights into the control of mitochondrial fission.

    He, Jiajia / Liu, Ke / Fu, Chuanhai

    Biochemical Society transactions

    2024  Volume 52, Issue 1, Page(s) 99–110

    Abstract: Mitochondria are the powerhouse of the cell. They undergo fission and fusion to maintain cellular homeostasis. In this review, we explore the intricate regulation of mitochondrial fission at various levels, including the protein level, the post- ... ...

    Abstract Mitochondria are the powerhouse of the cell. They undergo fission and fusion to maintain cellular homeostasis. In this review, we explore the intricate regulation of mitochondrial fission at various levels, including the protein level, the post-translational modification level, and the organelle level. Malfunctions in mitochondrial fission can have detrimental effects on cells. Therefore, we also examine the association between mitochondrial fission with diseases such as breast cancer and cardiovascular disorders. We anticipate that a comprehensive investigation into the control of mitochondrial fission will pave the way for the development of innovative therapeutic strategies.
    MeSH term(s) Humans ; Mitochondrial Dynamics/physiology ; Mitochondria/metabolism ; Protein Processing, Post-Translational ; Cardiovascular Diseases/metabolism ; Mitochondrial Proteins/metabolism
    Chemical Substances Mitochondrial Proteins
    Language English
    Publishing date 2024-01-30
    Publishing country England
    Document type Review ; Journal Article
    ZDB-ID 184237-7
    ISSN 1470-8752 ; 0300-5127
    ISSN (online) 1470-8752
    ISSN 0300-5127
    DOI 10.1042/BST20230220
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Structural basis for specific DNA sequence recognition by the transcription factor NFIL3.

    Chen, Sizhuo / Lei, Ming / Liu, Ke / Min, Jinrong

    The Journal of biological chemistry

    2024  Volume 300, Issue 3, Page(s) 105776

    Abstract: The CCAAT/enhancer-binding proteins (C/EBPs) constitute a family of pivotal transcription factors involved in tissue development, cellular function, proliferation, and differentiation. NFIL3, as one of them, plays an important role in regulating immune ... ...

    Abstract The CCAAT/enhancer-binding proteins (C/EBPs) constitute a family of pivotal transcription factors involved in tissue development, cellular function, proliferation, and differentiation. NFIL3, as one of them, plays an important role in regulating immune cell differentiation, circadian clock system, and neural regeneration, yet its specific DNA recognition mechanism remains enigmatic. In this study, we showed by the ITC binding experiments that NFIL3 prefers to bind to the TTACGTAA DNA motif. Our structural studies revealed that the α-helical NFIL3 bZIP domain dimerizes through its leucine zipper region, and binds to DNA via its basic region. The two basic regions of the NFIL3 bZIP dimer were pushed apart upon binding to DNA, facilitating the snug accommodation of the two basic regions within the major grooves of the DNA. Remarkably, our binding and structural data also revealed that both NFIL3 and C/EBPα/β demonstrate a shared preference for the TTACGTAA sequence. Furthermore, our study revealed that disease-associated mutations within the NFIL3 bZIP domain result in either reduction or complete disruption of its DNA binding ability. These discoveries not only provide valuable insights into the DNA binding mechanisms of NFIL3 but also elucidate the causal role of NFIL3 mutations in disease pathogenesis.
    MeSH term(s) Amino Acid Sequence ; Base Sequence ; Basic-Leucine Zipper Transcription Factors/genetics ; Basic-Leucine Zipper Transcription Factors/metabolism ; CCAAT-Enhancer-Binding Proteins/metabolism ; DNA/metabolism ; Transcription Factors/metabolism ; Humans
    Chemical Substances Basic-Leucine Zipper Transcription Factors ; CCAAT-Enhancer-Binding Proteins ; DNA (9007-49-2) ; Transcription Factors ; NFIL3 protein, human
    Language English
    Publishing date 2024-02-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1016/j.jbc.2024.105776
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Stochastic user equilibrium based spatial-temporal distribution prediction of electric vehicle charging load

    Liu, Ke / Liu, Yanli

    Applied Energy. 2023 June, v. 339 p.120943-

    2023  

    Abstract: As the number of electric vehicles (EVs) connected to the grid increases, the EV electricity demand rises dramatically, affecting the grid’s planning and operation and deepening the coupling of the power and transportation systems. Therefore, accurate ... ...

    Abstract As the number of electric vehicles (EVs) connected to the grid increases, the EV electricity demand rises dramatically, affecting the grid’s planning and operation and deepening the coupling of the power and transportation systems. Therefore, accurate spatial–temporal distribution prediction of EV charging load is vital for both power system and coupled power-transportation system studies. This paper proposes a novel method based on stochastic user equilibrium (SUE) for predicting the accurate spatial–temporal distribution of EV charging load synchronized with traffic states. A prediction framework of EV charging load based on SUE and trip chain is proposed, which can effectively reflect the actual behavior of EVs in synchronous traffic states. Then, the extended logit-based SUE and equivalent mathematical model are proposed to obtain more detailed traffic states with intersection turning flows and delays. Meanwhile, the unified reachability and charging models are established to ensure that the trip chain is reachable and the charging characteristics are suitable for different EV types. Finally, the method of the successive averages (MSA) and the Dijkstra-based K-shortest paths algorithms are integrated to solve the proposed framework iteratively with stable convergence. Test results on a realistic traffic network show that the proposed method can effectively reflect the charging and trip characteristics of different EV types while ensuring reachability. And it can also accurately predict the overall and individual EV travel costs and total charging loads in detailed synchronous traffic states. In particular, even in the case of high EV penetration with higher peak-to-valley differences and charging demand, the convergence of the prediction is still stable with even more remarkable prediction effectiveness, especially during peak load hours. Furthermore, the quantitative analysis based on proposed criticality indexes reveals that traffic network failures will affect the network-wide traffic states and EV charging loads with different node-level impact characteristics, which should be considered in joint power-transportation restoration scheduling.
    Keywords electric vehicles ; electricity ; energy ; mathematical models ; prediction ; quantitative analysis ; traffic ; travel ; Electric vehicle ; Intersection delay ; Spatial-temporal distribution ; Stochastic user equilibrium
    Language English
    Dates of publication 2023-06
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 2000772-3
    ISSN 0306-2619
    ISSN 0306-2619
    DOI 10.1016/j.apenergy.2023.120943
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Study on the method of identifying fractures by ant tracking technique

    Zhang Juan / Liu Ke / Han Xianbo

    E3S Web of Conferences, Vol 375, p

    2023  Volume 01052

    Abstract: Fracture is an effective reservoir space and important seepage channel for low permeability sandstone reservoirs, which is very important for reservoir exploration and development. Conventional fracture prediction methods have high cost, slow operation ... ...

    Abstract Fracture is an effective reservoir space and important seepage channel for low permeability sandstone reservoirs, which is very important for reservoir exploration and development. Conventional fracture prediction methods have high cost, slow operation speed and low resolution, which limits the promotion of fracture identification methods. Therefore, this paper proposes a fracture prediction method based on ant tracking. This method is based on post-stack seismic data. Firstly, the seismic data is denoised and the fault continuity is enhanced by using structural smoothing and variance body attributes. On this basis, the active ant tracking is used to enhance the fault boundary of the data body. Then, the data body is subjected to multiple ant tracking calculations by optimizing parameters, and finally the suitable parameter values are determined to realize the prediction of natural fractures. The results show that the technology is used to predict natural fractures, and the prediction results have high resolution and reasonable fracture distribution.
    Keywords post-stack seismic data ; ant tracking ; variance body ; fracture prediction ; Environmental sciences ; GE1-350
    Subject code 550
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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