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Global research on Clostridium difficile-associated diarrhoea:A visualized study

World Journal of Gastroenterology 2022年第28期28卷 3720-3731页

作者： sa'ed H Zyoud Department of Clinical and Community Pharmacy College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Poison Control and Drug Information Center College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Clinical Research Centre An-Najah National University HospitalNablus 44839Palestine

BACKGROUND Clostridioides(Clostridium)difficile(***)is still the most common cause of healthcare-associated diarrhoea and is increasing in prevalence as a communityacquired *** addition,the emergence of antibiotic resistance in *** can increase the likelihood of the disease developing and/or *** To provide an up-to-date picture of the trends in publications related to *** infection,together with specific insights into hot-button issues in this *** Publications on *** infections in the field of microbiology between 2001 and 2020 were identified from the Scopus database and Reference Citation *** indicators were determined,including the number and type of publications,countries,affiliations,funding agencies,journals and citation *** was used to determine research areas and hot-button issues by identifying recurring terms with a high relative occurrence in the title and *** A total of 8127 documents on‘***-associated diarrhoea’published between 2001 and 2020 were retrieved from the Scopus *** the last decade,there has been a significant almost fourfold increase in the number of published papers on this *** United States was among the countries(44.11%)with the most publications,and the most involved institution was the University of Leeds in the United Kingdom(2.50%).Three clusters of research were identified and included‘illness spectrum and severity,as well as the signs,symptoms and clinical pathogenesis of ***’;‘laboratory diagnosis and characterization of ***’and‘risk factors for *** infection’.CONCLUSION This study contains the most up-to-date and comprehensive data ever compiled in this *** international research and cross-institutional collaborations are needed to address more global *** concerns and to benefit from greater sharing of expertise,which will result in higher quality or more effective

关键词： Clostridioides Clostridium difficile Bibliometric Scopus VOSviewer Diarrhoea

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Research landscape on COVID-19 and liver dysfunction: A bibliometric analysis

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World Journal of Gastroenterology 2023年第27期29卷 4356-4367页

作者： sa'ed H Zyoud Department of Clinical and Community Pharmacy College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Poison Control and Drug Information Center(PCDIC) College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Clinical Research Centre An-Najah National University HospitalNablus 44839Palestine

BACKGROUND The global spread of severe acute respiratory syndrome coronavirus 2,responsible for coronavirus disease 2019(COVID-19),poses a significant risk to public *** the respiratory issues initially associated with the condition,severe cases of COVID-19 can also lead to complications in other organs,including the *** with severe COVID-19 may exhibit various clinical signs of liver dysfunction,ranging from minor elevations in liver enzymes without symptoms to more serious cases of impaired liver *** damage is more commonly observed in patients with severe or critical forms of the *** To present the research landscape on COVID-19 and liver dysfunction while also offering valuable insights into the prominent areas of interest within this particular *** On 18 February 2023,Scopus was utilised to conduct a comprehensive exploration of the relationship between COVID-19 and the liver *** investigation encompassed the period from 1 January 2020 to 31 December *** sources were meticulously examined and organised in a Microsoft Excel 2013 spreadsheet,categorised by journal,institution,funding agency,country and citation *** version 1.6.18 was employed to explore the prominent topics and knowledge network related to the *** There were 2336 publications on COVID-19 and liver dysfunction analysed in this study,of which 558 were published in 2020,891 in 2021 and 887 in *** from 111 different countries participated in the retrieved *** United States contributed the most studies,with 497 documents,representing 21.28%of the total,followed by China with 393 documents(16.82%)and Italy with 255 documents(10.92%).In the context of research related to COVID-19 and the liver,co-occurrence analysis identified three distinct clusters of topics:(1)‘COVID-19 vaccines in liver transplant recipients’;(2)‘liver function tests as a predictor of the severity and clinical outcom

关键词： COVID-19 Bibliometric Scopus Vosviewer Liver

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Seasonal variability in CDOM absorption and fluorescence properties in the Barataria Basin,Louisiana,Usa

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Journal of Environmental Sciences 2010年第10期22卷 1481-1490页

作者： Shatrughan Singh Eurico D'sa Erick Swenson Department of Oceanography and Coastal Sciences Louisiana State University

Absorption and fluorescence properties of chromophoric dissolved organic matter （CDOM） along a 124 km transect in the Barataria Basin, a large estuary located in Louisiana, Usa, were investigated during high and low flow periods of the Mississippi River in the spring and winter of 2008-2009. Mean CDOM absorption at 355 nm from the marine to the freshwater end member stations ranged from （3.25 ± 0.56） to （20.76 ± 2.43） m^-1 for the three month high flow period whereas it varied from （1.48 ± 1.08） to （25.45 ± 7.03） m^-1 for the same stations during low flow period. Corresponding salinity values at these stations indicated the influence of river and shelf exchanges in the lower basin and precipitation and runoff in the upper basin. An inverse relationship of CDOM absorbance and fluorescence with salinity observed in the basin could he a useful indicator of salinity. CDOM fluorescence also varied over a large range showing an approximately 8 to 12-fold increase between the marine and freshwater end members for the two flow seasons. Excitation-emission matrix spectral plots indicated the presence of various fluorescence components with highest being the A-peak, lowest the T-peak, and the C and M-peaks showing similar trends along the transect. During low flow season the A/C ratio were well correlated with station locations indicating increased terrestrial influence towards the upper basin. CDOM absorption and fluorescence at 355 nm were highly correlated and independent of CDOM sources suggesting that fluorescence could be used to characterize CDOM in the basin.

关键词： Barataria Basin chromophoric dissolved organic matter CDOM fluorescence excitation-emission matrix

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An interpretable machine learning strategy for pursuing high piezoelectric coefficients in (K_(0.5)Na_(0.5))NbO_(3)-based ceramics

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npj Computational materials 2023年第1期9卷 1-11页

作者： Bowen ma Xiao Wu Chunlin Zhao Cong Lin Min Gao Baisheng sa Zhimei Sun College of materials Science and Engineering Fuzhou UniversityFuzhou 350108China School of materials Science and Engineering Beihang UniversityBeijing 100191China

Perovskite-type lead-free piezoelectric ceramics allow access to illustrious piezoelectric coefficients(d33)through intricate composition design and experimental *** a swift and accurate technology for identifying(K,Na)NbO_(3)(KNN)-based ceramic compositions with high d33 in exceedingly large“compositional”space will establish an innovative research paradigm surpassing the traditional empirical trial-and-error ***,we demonstrate an interpretable machine learning(ML)framework for quick evaluation of KNN-based ceramics with high d33 based on data from published ***,a thorough feature construction was carried out from the global and local dimensions to establish tree regression models with d33 as the target ***,the feature-property mapping rules of KNN-based piezoelectric ceramics are further optimized through feature *** intuitively understand the correlation mechanisms between ML regression targets and features,the sure independence screening and sparsifying operator(SISSO)method was employed to extract the essential descriptors to explain d33.A straightforward descriptor,e^((NMB-MVB))·ST=(IDA)^(2),consisting of only four easily accessible parameters,can accelerate the evaluation of a series of novel KNN-based ceramics with high d33 while exhibiting strong theoretical *** work not only provides a tool for the rapid discovery of high piezoelectric performance in KNN-based ceramics but also offers a data-driven route for the design of property descriptors in perovskites.

关键词： ceramics ceramic piezoelectric

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Bioinspired nanotransducers for neuromodulation

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Nano Research 2024年第2期17卷 618-632页

作者： Fan Yang Xiang Wu sa Cai Guosong Hong Department of materials Science and Engineering Stanford UniversityStanfordCA 94305USA Wu Tsai Neurosciences Institute Stanford UniversityStanfordCA 94305USA School of Science Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China

The field of neuromodulation has experienced significant advancements in the past decade,owing to breakthroughs in disciplines such as materials science,genetics,bioengineering,photonics,and *** convergence of these fields has resulted in the development of nanotransducers,devices that harness the synergies of these diverse *** nanotransducers,essential for neuromodulation,often draw inspiration from energy conversion processes found in nature for their unique *** this review,we will delve into the latest advancements in wireless neuromodulation facilitated by optical,magnetic,and mechanical *** will examine their working principles,properties,advantages,and limitations in comparison to current methods for deep brain neuromodulation,highlighting the impact of natural systems on their design and ***,we will underscore potential future directions,emphasizing how continued progress in materials science,neuroscience,and bioengineering might expand the horizons of what is achievable with nanotransducer-enabled neuromodulation.

关键词： bioinspired synthesis neuromodulation mechanoluminescence focused ultrasound nanotransducers sono-optogenetics

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Electronic properties and photodegradation ability of Nd-TiO_(2)for phenol

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Journal of Rare Earths 2022年第7期40卷 1063-1072页

作者： Zhimin Zhao Jinjia Liu Gala sa Aiju Xu Inner Mongolia Key Laboratory of Green Catalysis College of Chemistry and Environmental ScienceInner Mongolia Normal UniversityHohhot 010022China State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of SciencesTaiyuan 030001China National Energy Center for Coal to Clean Fuels Synfuels China Co.Ltd.Beijing 101400China

In this study,the photocatalytic activity of Nd-TiO_(2)photocatalysts obtained by common hydrothermal method was evaluated by practical experiments and theoretical calculations based on density functional theory(DFT).The synthesized photocatalysts were characterized by X-ray diffraction(XRD),N_(2)adsorption-desorption,Fourier transform infrared spectroscopy(FT-IR),high resolution transmission electron microscopy(HRTEM),X-ray photoelectron spectroscopy(XPS),UV-Vis diffuse reflectance spectroscopy(DRS),and photoluminescence(PL)to study their physical/chemical prope *** the same time,the photoelectronic performance was also *** photodegradation ability of asprepared photocatalysts and the effect of Nd doped amount and photocatalysts dosage were investigated by the photodegradation of phenol(30 mg/L)under 400 W metal halide lamp(UV-Vis).The effect of Nd on electronic properties of TiO_(2)and adsorption ability of phenol were *** show the red-shift wavelength of 0.5 mol%Nd-TiO_(2),indicating that its absorption capacity is stronger than pristine TiO_(2)in the same wavelength *** result of DFT calculations demonstrates that the optical bandgap of Nd-TiO_(2)is profoundly reduced,thus the light absorption ability is promoted,which will be responsible for the enhanced photocatalytic performance of Nd-TiO_(2).0.5 mol%Nd is an optimum value for photodegradation phenol,and phenol can be completely degraded by 0.5 mol%Nd-TiO_(2)for 210 min,the higher catalytic performance is derived from the efficient separation of e-/h+***,the adsorption energy calculations of phenol on TiO_(2)(101)and Nd-TiO_(2)(101)demonstrate that the Nd doping can significantly enhance the adsorption ability of phenol on catalyst surfaces because of the formation of Nd-O *** last,the stability measurement through four recycles exhibits that 0.5 mol%Nd-TiO_(2)possesses excellent stability.

关键词： TiO_(2) Hydrothermal method Density functional theory Phenol Photodegradation Rare earths

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Developing Weibull-based diameter distributions for the major coniferous species in Heilongjiang Province,China

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Journal of Forestry Research 2023年第6期34卷 1803-1815页

作者： Qila sa Xingji Jin Timo Pukkala Fengri Li Key Laboratory of Sustainable Forest Ecosystem management Ministry of EducationNortheast Forestry UniversityHarbin 150040People’s Republic of China University of Eastern Finland 80101 JoensuuFinland

Diameter distribution models play an important role in forest inventories,growth prediction,and *** Weibull probability density function is widely used in *** a number of methods have been proposed to predict or recover the Weibull distribution,their applicability and predictive performance for the major tree species of China remain to be *** in sample plots of three even-aged coniferous species(Larix olgensis,Pinus sylvestris and Pinus koraiensis)were measured both in un-thinned and thinned stands to develop parameter prediction models for the Weibull probability density *** least squares(OLS)and maximum likelihood regression(MLER),as well as cumulative distribution function regression(CDFR)were used,and their performance *** results show that MLER and CDFR were better than OLS in predicting diameter distributions of tree *** produced the best results in terms of fitting *** on the error statistics calculated for different age groups,CDFR was considered the most suitable method for developing prediction models for Weibull parameters in coniferous plantations.

关键词： Parameter prediction maximum likelihood regression Cumulative distribution function regression

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Hua Tuo’s Wu Qin Xi (Five Animal Frolics) Movements and the Logic behind It

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Chinese Medicine and Culture 2018年第3期1卷 127-134页

作者： saša Balaneskovic Serbian Qigong Association BelgradeSerbia

The key proposition of this hypothesis is logic behind the order of movements of Hua Tuo’s qigong Wu Qin Xi(Five animal frolics).To date,there were many discussions about connection of the movements of Wu Qin Xi with existing TCM theories and why Hua Tuo made it in that particular *** experts are saying that there is no connection but if all stories of Hua Tuo’s abilities and knowledge were half-truth,he wouldn’t let even the order of movements of qigong that he created be just a random *** is exploring different views on Taiji movement direction,Wu Xing and connection between animals in Wu Qin Xi,Lo Shu square and Sun wheel and proposing possible solution to the question“Why Hua Tuo made such order of animals in Wu Qin Xi?”by analyzing and and cross referencing the common ground between theories and bridging the gap the we were left without any written explanation from the master *** progress and confirmation of this hypothesis requires deeper research and cooperation between Qigong expert historians.

关键词： Five Animal Frolics Qigong Hua Tuo Taiji movement orientation Wu Qin Xi Qigong Wu Xing

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Intelligent Real-Time IoT Traffic Steering in 5G Edge Networks

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Computers, materials & Continua 2021年第6期67卷 3433-3450页

作者： sa math Prohim Tam Seokhoon Kim Department of Software Convergence Soonchunhyang UniversityAsan31538Korea Department of Computer Software Engineering Soonchunhyang UniversityAsan31538Korea

In the Next Generation Radio Networks(NGRN),there will be extreme massive connectivity with the Heterogeneous Internet of Things(HetIoT)*** millimeter-Wave(mmWave)communications will become a potential core technology to increase the capacity of Radio Networks(RN)and enable Multiple-Input and Multiple-Output(MIMO)of Radio Remote Head(RRH)***,the challenging key issues in unfair radio resource handling remain unsolved when massive requests are occurring *** imbalance of resource utilization is one of the main issues occurs when there is overloaded connectivity to the closest RRH receiving exceeding *** handle this issue effectively,machine Learning(ML)algorithm plays an important role to tackle the requests of massive IoT devices to RRH with its obvious capacity *** paper proposed a dynamic RRH gateways steering based on a lightweight supervised learning algorithm,namely K-Nearest Neighbor(KNN),to improve the communication Quality of Service(QoS)in real-time IoT *** supervises the model to classify and recommend the user’s requests to optimal RRHs which preserves higher *** experimental dataset was generated by using computer software and the simulation results illustrated a remarkable outperformance of the proposed scheme over the conventional methods in terms of multiple significant QoS parameters,including communication reliability,latency,and throughput.

关键词： machine learning Internet of Things traffic steering mobile edge computing

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TM_(3)(TM=V,Fe,Mo,W)single-cluster catalyst confined on porous BN for electrocatalytic nitrogen reduction

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Journal of materials Science & Technology 2022年第13期108卷 46-53页

作者： Shuaishuai Gao Zuju ma Chengwei Xiao Zhitao Cui Wei Du Xueqin Sun Qiaohong Li Rongjian sa Chenghua Sun School of Environmental and materials Engineering Yantai UniversityYantai 264005China School of materials Science and Engineering Anhui University of TechnologyMaanshan 243002China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Institute of Oceanography Ocean CollegeMinjiang UniversityFuzhou 350108China College of Chemical Engineering and Energy Technology Dongguan University of TechnologyDongguan 523808China Department of Chemistry and Biotechnology Faculty of ScienceEngineering&TechnologySwinburne University of TechnologyHawthornVIC 3122Australia

Confined metal clusters as sub-nanometer reactors for electrocatalytic N_(2) reduction reaction(eNRR)have received increasing attention due to the unique metal-metal interaction and higher activity than singleatom ***,the inspiration of the superior capacitance and unique microenvironment with regular surface cavities of the porous boron nitride(p-BN)nanosheets,we systematically studied the catalytic activity for NRR of transition-metal single-clusters in the triplet form(V_(3),Fe_(3),Mo_(3) and W_(3))confined in the surface cavities of the p-BN sheets by spin-polarized density functional theory(DFT)*** a two-step screening strategy,Mo_(3)@p-BN was found to have high catalytic activity and selectivity with a rather low limiting potential(-0.34 V)for the *** anchored Mo_(3) singlecluster can be stably embedded on the surface cavities of the substrate preventing the diffusion of the active Mo *** importantly,the Mo atoms in the Mo_(3) single-cluster would act as“cache”to accelerate electron transfer between active metal centers and nitrogen-containing intermediates via the intimate Mo-Mo *** cooperation of Mo atoms can also provide a large number of occupied and unoccupied d orbitals to make the"donation-backdonation"mechanism more *** work not only provides a quite promising electrocatalyst for NRR,but also brings new insights into the rational design of triple-atom NRR catalysts.

关键词： Electrocatalytic N_(2)reduction Density functional theory Single-cluster Porous boron nitride

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