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  1. Article ; Online: Quantum Phases of SrCu_{2}(BO_{3})_{2} from High-Pressure Thermodynamics.

    Guo, Jing / Sun, Guangyu / Zhao, Bowen / Wang, Ling / Hong, Wenshan / Sidorov, Vladimir A / Ma, Nvsen / Wu, Qi / Li, Shiliang / Meng, Zi Yang / Sandvik, Anders W / Sun, Liling

    Physical review letters

    2020  Volume 124, Issue 20, Page(s) 206602

    Abstract: We report heat capacity measurements of SrCu_{2}(BO_{3})_{2} under high pressure along ... to tune SrCu_{2}(BO_{3})_{2} between the plaquette-singlet and antiferromagnetic states opens ...

    Abstract We report heat capacity measurements of SrCu_{2}(BO_{3})_{2} under high pressure along with simulations of relevant quantum spin models and map out the (P,T) phase diagram of the material. We find a first-order quantum phase transition between the low-pressure quantum dimer paramagnet and a phase with signatures of a plaquette-singlet state below T=2  K. At higher pressures, we observe a transition into a previously unknown antiferromagnetic state below 4 K. Our findings can be explained within the two-dimensional Shastry-Sutherland quantum spin model supplemented by weak interlayer couplings. The possibility to tune SrCu_{2}(BO_{3})_{2} between the plaquette-singlet and antiferromagnetic states opens opportunities for experimental tests of quantum field theories and lattice models involving fractionalized excitations, emergent symmetries, and gauge fluctuations.
    Language English
    Publishing date 2020-06-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.124.206602
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

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  2. Article: Catalytic conversion of carbohydrates into 5-ethoxymethylfurfural using γ-AlOOH and CeO₂@B₂O₃ catalyst synergistic effect

    Zhang, Luxin / Xing, Xu / Sun, Ruijun / Hu, Meng

    RSC advances. 2022 Aug. 16, v. 12, no. 36

    2022  

    Abstract: ... approach to the biorefinery. In this work, solid acid catalysts of γ-AlOOH and CeO₂@B₂O₃ were used ... The synergistic effect of γ-AlOOH and CeO₂@B₂O₃ was studied. Furthermore, the morpho-structural properties ... CeO₂@B₂O₃ further causes the combination of multiple acid sites with different types and strength ...

    Abstract Selective catalytic conversion of carbohydrates to 5-ethoxymethylfurfural (EMF) is a critical approach to the biorefinery. In this work, solid acid catalysts of γ-AlOOH and CeO₂@B₂O₃ were used to convert carbohydrates to EMF in a one-pot process, performed in an ethanol/DMSO solvent system. The synergistic effect of γ-AlOOH and CeO₂@B₂O₃ was studied. Furthermore, the morpho-structural properties of the catalysts were characterized, and the effects of reaction time, reaction temperature, catalyst load, and the amount of cosolvent on the conversion of glucose to EMF were examined and optimized. Under the reaction conditions of 170 °C for 20 h, glucose, sucrose, cellobiose, inulin and starch were used as raw materials, and the EMF yield range was 9.2–27.7%. The results showed that the synergistic effect of γ-AlOOH and CeO₂@B₂O₃ further causes the combination of multiple acid sites with different types and strength distributions. Particularly, the collaboration between weak, medium-strong, and strong acid, as well as between Lewis and Brønsted acidity, is of great significance for EMF generation. The reusability experiments showed that the combined catalytic system was easily separated and maintained catalytic activity for five successive reactions without further intermediate regeneration steps. This work provides a promising route for the catalytic conversion of biomass-derived carbohydrates into EMF.
    Keywords acidity ; biorefining ; catalysts ; catalytic activity ; cellobiose ; ethanol ; glucose ; inulin ; solvents ; starch ; sucrose ; synergism ; temperature
    Language English
    Dates of publication 2022-0816
    Size p. 23118-23128.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/d2ra01866g
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: BO-653. Chugai.

    Meng, Charles Q

    Current opinion in investigational drugs (London, England : 2000)

    2003  Volume 4, Issue 3, Page(s) 342–346

    Abstract: BO-653 is an antioxidant under development by Chugai for the potential treatment of atherosclerosis ... and the prevention of restenosis. By November 2001, BO-653 was in phase II trials for restenosis ...

    Abstract BO-653 is an antioxidant under development by Chugai for the potential treatment of atherosclerosis and the prevention of restenosis. By November 2001, BO-653 was in phase II trials for restenosis in post-percutaneous transluminal coronary angioplasty in the US, and by April 2002, the compound was in phase I trials for the same indication in Japan.
    MeSH term(s) Animals ; Antioxidants/pharmacology ; Antioxidants/therapeutic use ; Arteriosclerosis/drug therapy ; Benzofurans/pharmacology ; Benzofurans/therapeutic use ; Clinical Trials, Phase I as Topic ; Clinical Trials, Phase II as Topic ; Coronary Restenosis/prevention & control ; Humans
    Chemical Substances 2,3-dihydro-5-hydroxy-2,2-dipentyl-4,6-di-tert-butylbenzofuran ; Antioxidants ; Benzofurans
    Language English
    Publishing date 2003-03
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2027913-9
    ISSN 2040-3429 ; 1472-4472 ; 0967-8298
    ISSN (online) 2040-3429
    ISSN 1472-4472 ; 0967-8298
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5305: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  4. Article: Stable Oxoborate with Edge-Sharing BO₄ Tetrahedra Synthesized under Ambient Pressure

    Jin, Shifeng / Cai, Gemei / Wang, Wanyan / He, Meng / Wang, Shunchong / Chen, Xiaolong

    Angewandte Chemie. 2010 July 05, v. 49, no. 29

    2010  

    Language English
    Dates of publication 2010-0705
    Size p. 4967-4970.
    Publishing place Wiley-VCH Verlag
    Document type Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.200907075
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  5. Book ; Online ; E-Book: Imaging of CNS infections and neuroimmunology

    Gao, Bo / Li, Hongjun / Law, Meng

    2019  

    Author's details Bo Gao, Hongjun Li, Meng Law editors
    Keywords Radiology, Medical
    Language English
    Size 1 Online-Ressource (XIV, 213 Seiten), Illustrationen
    Publisher Springer
    Publishing place Singapore
    Publishing country Singapore
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT020157327
    ISBN 978-981-136-904-9 ; 9789811369032 ; 981-136-904-6 ; 9811369038
    DOI 10.1007/978-981-13-6904-9
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  6. Book ; Online ; E-Book: Rapid On-Site Evaluation (ROSE) in Diagnostic Interventional Pulmonology

    Feng, Jing / Wu, Bo / Jiang, Erlie / Li, Wen / Meng, Chen

    Volume 4: Metagenomic Sequencing Application in Difficult Cases of Infectious Diseases

    2020  

    Abstract: This book covers up-to-date evidence of Rapid on-site evaluation (ROSE) for diagnosis of rare disease and used combined with metagenomic sequencing technique in clinical scenarios. ROSE has becoming an efficient interventional diagnostics tool and ... ...

    Author's details edited by Jing Feng, Bo Wu, Erlie Jiang, Wen Li, Chen Meng
    Abstract This book covers up-to-date evidence of Rapid on-site evaluation (ROSE) for diagnosis of rare disease and used combined with metagenomic sequencing technique in clinical scenarios. ROSE has becoming an efficient interventional diagnostics tool and important reference for lung diseases differentiation, increasing the adequacy rate, diagnostic yield and accuracy of the interventional pulmonary procedures. ROSE has its value in the field of evaluating sampling adequacy for further immunohistochemistry, microbiology studies, flow cytometry analysis, and molecular assays; DNA analysis of biopsy specimens using sequencing technique is performed to provide clue of etiology, which is an emerging pathway for clinical dilemmas. The first part of the book discusses the principals of performing ROSE procedures and reviews the basic concepts and summarized knowledge of key anatomical structures in lung. Figures of ROSE cytopathology, together with clinical data, results of metagenomic sequencing technique are presented to demonstrate how the difficulties in clinical practice could be tackled with the help of advanced techniques. Further application direction and perspective are also discussed, which provides researchers with more insights on the discipline and techniques. This book is part of the 4-volume collection ROSE in Diagnostic Interventional Pulmonology.
    Keywords Respiratory organs—Diseases ; Pneumology/Respiratory System
    Subject code 780
    Language English
    Size 1 online resource
    Edition 1st ed. 2020.
    Publisher Springer Singapore ; Imprint: Springer
    Publishing place Singapore
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    ISBN 981-15-5246-0 ; 981-15-5245-2 ; 978-981-15-5246-5 ; 978-981-15-5245-8
    DOI 10.1007/978-981-15-5246-5
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  7. Article ; Online: Immune to temperature interference sensor of carbon dioxide gas concentration based on a single modified fiber Bragg grating.

    Wang, Bo-Yuan / Yuan, Zhen-Yu / Li, Yu-Dong / Meng, Fan-Li

    Optics express

    2024  Volume 32, Issue 4, Page(s) 6277–6290

    Abstract: In this study, a novel method that can detect carbon dioxide ( ... ...

    Abstract In this study, a novel method that can detect carbon dioxide (CO
    Language English
    Publishing date 2024-03-04
    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.509223
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  8. Article: Case report: The diagnostic dilemma of indeterminate biliary strictures: report on two cases with a literature review.

    Meng, Chunyan / Wang, Jing / Zhang, Peipei / Wang, Bo

    Frontiers in oncology

    2024  Volume 14, Page(s) 1301937

    Abstract: Background: It is still a challenging problem for clinicians to explore the nature of the indeterminate biliary strictures (IBSs). Approximately 20% of biliary strictures remain undetermined after a thorough preoperative assessment.: Case presentation! ...

    Abstract Background: It is still a challenging problem for clinicians to explore the nature of the indeterminate biliary strictures (IBSs). Approximately 20% of biliary strictures remain undetermined after a thorough preoperative assessment.
    Case presentation: Here, we present two cases of indeterminate biliary strictures patients, whose cross- sectional imaging and endoscopic examination were nondiagnostic. The patients underwent exploratory laparotomy finally and were confirmed as malignancy. We also reviewed the recent reports in literatures regarding the evaluation of IBSs.
    Conclusions: Given the majority of the biliary strictures are malignancy, preoperative differentiation between benign and malignant is critical for choosing the best therapeutic regimen. Thus, close follow-up, multiple multidisciplinary discussion, and prompt surgical exploration are necessary for some difficult diagnostic cases.
    Language English
    Publishing date 2024-03-27
    Publishing country Switzerland
    Document type Case Reports
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2024.1301937
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  9. Article ; Online: The allocative efficiency of construction land quota in rural China: a perspective of bidders' behavior and regret psychology.

    Liu, Jingyu / Meng, Weidong / Li, Yuyu / Huang, Bo

    Environmental science and pollution research international

    2024  Volume 31, Issue 8, Page(s) 11968–11982

    Abstract: The construction land quota pricing mechanism with cost plus pricing method is not sufficient to reflect its intrinsic value. This diminishes the willingness of farmers to voluntarily reclaim abandoned residential and other rural construction land, ... ...

    Abstract The construction land quota pricing mechanism with cost plus pricing method is not sufficient to reflect its intrinsic value. This diminishes the willingness of farmers to voluntarily reclaim abandoned residential and other rural construction land, leading to suboptimal efficiency in rural land utilization and an excessive squandering of rural land resources. Thus, a sequential auction model with two stages for complementary goods was constructed, which considered the synergic characteristics between the land and quota. Further, regret psychology of bidder was considered in the case of winning or losing. A rational pricing mechanism has been developed to allocate construction land quotas, aiming to enhance farmers' motivation to the vacant homesteads of reclamation and revitalizing the stock of rural construction land. The results revealed that the regret psychology in the case of winning would decrease the transaction price of the quota, i.e., the greater the perceived regret in the case of winning, the more significant the reduction in the bidding price offered. Moreover, the regret psychology in the event of losing/failure would increase the transaction price of quota. Furthermore, publishing only the winner's price after the auction leads to the highest price of the quota offered by the bidder. In contrast, publishing only the loser's bidding price leads to the lowest transaction price of the quota offered by the bidder. In addition, the fee for delayed construction would increase the bidding price of the construction land quota. Therefore, local governments should consider announcing only the winner of price after the quota auction has ended. In addition, imposing a fee for delayed construction would enhance the transaction price of land quota, increase farmers' revenue from land reclamation, and incentivize farmers to reclaim unused rural land.
    MeSH term(s) Humans ; China ; Farmers ; Costs and Cost Analysis ; Resource Allocation ; Emotions
    Language English
    Publishing date 2024-01-16
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-024-31873-6
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    In stock of ZB MED Bonn / Germany

    Z 5915: Show issues

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  10. Article ; Online: Can the allocation of primary health care system resources affect efficiency? A spatial Dubin model study in China.

    Sun, Xinyue / Lv, Bo / Gao, Xiaoyi / Meng, Kai

    BMC primary care

    2024  Volume 25, Issue 1, Page(s) 62

    Abstract: Background: The primary health care (PHC) system plays an important role in China's health care system, but there are challenges such as irrational allocation of health resources and inefficient operation, which need to be improved. The purpose of this ... ...

    Abstract Background: The primary health care (PHC) system plays an important role in China's health care system, but there are challenges such as irrational allocation of health resources and inefficient operation, which need to be improved. The purpose of this study was to explore the impact of resource allocation on the efficiency of the PHC system in China.
    Methods: The data in 31 provinces were collected from the China Statistical Yearbook 2017-2021 and the China Health Statistical Yearbook 2017-2021. The comprehensive health resource density index (CHRDI) was constructed based on the entropy method and the health resource density index (HRDI), which was used to analyze the allocation of primary health resources in each province. The adjusted efficiency of the PHC system in each province was calculated by the bootstrap data envelopment analysis (DEA). Finally, the spatial Dubin model was used to explore the effect of the CHRDI on efficiency.
    Results: From 2016 to 2020, the allocation of primary health resources in 31 provinces showed an increasing trend, and the average efficiency after correction showed a decreasing state year by year. The spatial direct effect and spatial spillover effect coefficients of CHRDI were 0.820 and 1.471, which positively affect the efficiency. Per capita Gross Domestic Product (GDP), urbanization rate, and the proportion of the elderly were the factors affecting the efficiency of the PHC system.
    Conclusions: The allocation of primary health resources in all provinces in China has improved each year, but there are still great differences, and efficiency must be further improved. Pay attention to the spatial spillover effect of the level of resource allocation and formulate differentiated measures for different regions. Attention should also be paid to the impact of population aging and economic development on the utilization of primary health resources by increasing health needs and choices.
    MeSH term(s) Humans ; Aged ; Health Equity ; Health Resources ; Efficiency ; Delivery of Health Care ; China
    Language English
    Publishing date 2024-02-21
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2731-4553
    ISSN (online) 2731-4553
    DOI 10.1186/s12875-024-02290-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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