With the increasing accumulation of plastic pollutants in various environments,research on microorganisms(including bacteria,fungi,and algae)with plastic degradation capabilities has gained significant attention.Howev...With the increasing accumulation of plastic pollutants in various environments,research on microorganisms(including bacteria,fungi,and algae)with plastic degradation capabilities has gained significant attention.However,only a limited number of microbial plastic-degrading enzymes have been identified to date.This highlights that the degradation mechanisms employed by many plastic-degrading microorganisms,particularly filamentous fungi,remain insufficiently explored.In this study,we utilized a versatile fungal plasmid(pCT74)to express green fluorescent protein(GFP)in a marine-derived fungus Alternaria alternata strain FB1 with plastic degradation capabilities.Upon evaluating the degradation effect of polyester-type polyurethane(PU)film,we observed that different transformants exhibited three kinds of activities(the same,reduced,or enhanced degradation capability)compared to the FB1 wild-type strain.Further analysis of the plasmid fragment insertion sites in different transformants revealed that pCT74 integrates randomly into the genome of the host fungus.Notably,a direct correlation was found between the plasmid insertion site and the degradation capability of the corresponding transformant.Our findings not only redefine the potential applications of plasmid pCT74 in filamentous fungi but also show a novel research approach to identifying key enzymes involved in plastic degradation by fungi.展开更多
Mycobacterium marinum can cause disease in both human beings and fishes.Infected fish exhibits symptoms commonly referred to as fish tuberculosis.In this research,we screened a 14-Membered Resorcylic Acid Lactones(RAL...Mycobacterium marinum can cause disease in both human beings and fishes.Infected fish exhibits symptoms commonly referred to as fish tuberculosis.In this research,we screened a 14-Membered Resorcylic Acid Lactones(RALs)library constructed in the laboratory for in vitro anti-Mycobacterium marinum activity and found that several compounds,including compounds 3,4,6,10,and 17–26,showed good activity.Notably,the trace natural product cochilimycin B(compound 3)possesses significant long-lasting inhibitory function to Mycobacterium marinum.It also shows synergistic effects with drugs like isoniazid,ethambutol,and bedaquiline(FICI≤0.5).In addition,cochilimycin B showed a significant inhibitory effect on the biofilm produced by Mycobacterium marinum,with an inhibition rate of 65.9%.To solve the bottleneck problem of natural product drug sources,we realized an efficient one-step semi-synthetic method to obtain compound 3 with a yield of 32.1%.In vivo,inflammatory changes in BALB/c mice infected with Mycobacterium marinum were characterized.After 12 h of infection,IL-1βwas 20%–30%lower in the spleen and tail of the3-treated group compared to the control group.In the thymus and tail of the treated group,TNF-αlevels were 30%–60%lower than in the control group.This is the first time that the significant anti-Mycobacterium marinum effect of cochilimycin B from 14-Membered Resorcylic Acid Lactones(14-RALs)was reported,offering a new chemical molecule for anti-Mycobacterium marinum drug research.展开更多
Ferroptosis of chondrocytes is a significant contributor to osteoarthritis(OA),for which there is still a lack of safe and effective therapeutic drugs targeting ferroptosis.Here,we screen for anti-ferroptotic drugs in...Ferroptosis of chondrocytes is a significant contributor to osteoarthritis(OA),for which there is still a lack of safe and effective therapeutic drugs targeting ferroptosis.Here,we screen for anti-ferroptotic drugs in Food and Drug Administration(FDA)-approved drug library via a high-throughput manner in chondrocytes.We identified a group of FDA-approved anti-ferroptotic drugs,among which vitamin K showed the most powerful protective effect.Further study demonstrated that vitamin K effectively inhibited ferroptosis and alleviated the extracellular matrix(ECM)degradation in chondrocytes.Intra-articular injection of vitamin K inhibited ferroptosis and alleviated OA phenotype in destabilization of the medial meniscus(DMM)mouse model.Mechanistically,transcriptome sequencing and knockdown experiments revealed that the anti-ferroptotic effects of vitamin K depended on growth arrest-specific 6(Gas6).Furthermore,exogenous expression of Gas6 was found to inhibit ferroptosis through the AXL receptor tyrosine kinase(AXL)/phosphatidylinositol 3-kinase(PI3K)/AKT serine/threonine kinase(AKT)axis.Together,we demonstrate that vitamin K inhibits ferroptosis and alleviates OA progression via enhancing Gas6 expression and its downstream pathway of AXL/PI3K/AKT axis,indicating vitamin K as well as Gas6 to serve as a potential therapeutic target for OA and other ferroptosis-related diseases.展开更多
通过对国内外Living Library的考察,结合Web2.0和社会性网络SNS的发展,提出了一个基于SNS的Living Library虚拟社区模型:Virtual Living Library(简称VLL),并就VLL的概念模型的构建、实践和评价等方面进行了论述,讨论了VLL的建设可能性...通过对国内外Living Library的考察,结合Web2.0和社会性网络SNS的发展,提出了一个基于SNS的Living Library虚拟社区模型:Virtual Living Library(简称VLL),并就VLL的概念模型的构建、实践和评价等方面进行了论述,讨论了VLL的建设可能性和发展前景。展开更多
The aim of this article is to present a unique interpretation of the holistic worldview,both in theory and in practice.It explores how this approach,along with a planning process fundamentally different from conventio...The aim of this article is to present a unique interpretation of the holistic worldview,both in theory and in practice.It explores how this approach,along with a planning process fundamentally different from conventional methods,was implemented in the design and construction of the Music Center and Library in the city of Tel Aviv.This process forms a coherent representation of a complete worldview:a humanistic,holistic worldview developed and adopted through more than five decades of architectural practice across all scales of design.In this approach,a building is not regarded as a collection of isolated design elements,but as one hierarchical language,in which the building,its interior,and its ornamented details down to the handle of the door is one continuous system.Within this system,the building,its interior spaces,and even the smallest ornamental details,down to the door handles,are conceived as parts of a single,continuous whole.This worldview aligns with contemporary scientific discourse in fields such as cosmology,neurobiology,psychology,complexity theory,and Buddhist philosophy,disciplines with which this body of work is closely associated.展开更多
Building on the self-regulation theory and the gap model of service quality,this study proposes a conceptual model for investigating the help-seeking behavior of library users and the behaviors’underlying mechanisms ...Building on the self-regulation theory and the gap model of service quality,this study proposes a conceptual model for investigating the help-seeking behavior of library users and the behaviors’underlying mechanisms in the context of university libraries.The study focuses on university students as the research participants,and employs a questionnaire survey to collect data.The data is then analyzed,and the model is evaluated using the regression and bootstrap methods.The results indicate that library anxiety can lead to help-seeking behavior,while it also diminishes the users’perception of their interaction quality with the librarians.Moreover,the interaction quality positively influences help-seeking behavior,and self-efficacy and artificial intelligence services exhibit both direct and indirect negative regulatory effects.展开更多
Pathogenic xenobiotics are ubiquitous in the environment.Environmental carcinogens induce mutations leading to tumors;pathogens relying on environmental media transmission cause infections;exposure to chemical or biol...Pathogenic xenobiotics are ubiquitous in the environment.Environmental carcinogens induce mutations leading to tumors;pathogens relying on environmental media transmission cause infections;exposure to chemical or biological pollutants triggers toxicant poisoning.The mechanisms of xenobiotics work by abnormal expression of genes.Since their inception,genome-wide CRISPR/Cas9 knockout libraries have been rapidly applied in vitro to dissect the mechanism of diseases.Genome-wide screening of CRISPR/Cas9 knockout libraries has helped to identify genes essential for tumor survival,combinations of genes for synthetic lethal effects,and genes associated with drug resistance or susceptibility.In addition,key host factors and complex toxicological mechanisms of viral infection have been elucidated,contributing to the development of antidotes and the reduction of the incidence of adverse effects.CRISPR/Cas9 library screening can be combined with single-cell sequencing and organoid technologies to identify novel gene interactions and more reliable preclinical data.Future trends in such screening aim to identify more potential molecular targets for more exogenous pathogenic factors,combine screening with other emerging technologies to expand its use in in vitro models,and develop more accurate,accessible,and cost-effective genome editing tools.展开更多
This paper conducts topic mining and analysis of research literature in the domestic smart library field based on the BERTopic model,aiming to reveal its topic development context and evolution trends.Journal literatu...This paper conducts topic mining and analysis of research literature in the domestic smart library field based on the BERTopic model,aiming to reveal its topic development context and evolution trends.Journal literature in the smart library field collected by CNKI(China National Knowledge Infrastructure)from 2015 to 2024 was analyzed using the BERTopic model and dynamic topic modeling for topic mining and evolution trend analysis.The study found that the domestic smart library field involves multiple core topics,identifying a diversified topic structure centered around“data”,“user”,“5g”,etc.The research results provide data support and practical reference for libraries to accurately identify key points of technology integration during smart transformation and to optimize smart service models.展开更多
Objective:To enhance the reading skills of clinical pathology residents,it is essential to establish a well-structured electronic pathology reading library.Methods:In accordance with the Resident Standardization Train...Objective:To enhance the reading skills of clinical pathology residents,it is essential to establish a well-structured electronic pathology reading library.Methods:In accordance with the Resident Standardization Training Content and Standards(2022 Edition),clinical pathology residents are required to master pathological diagnoses across 11 systems:skin,head and neck,mediastinum and respiratory,digestive,urinary and male reproductive,female reproductive and breast,lymphatic and hematopoietic,bone and soft tissue,cardiovascular,central nervous,and endocrine diseases.Senior pathologists specializing in each subspecialty selected classic pathological slides,which were systematically scanned and compiled into an electronic pathology library.Results:A questionnaire survey was conducted to gather feedback on the electronic pathology reading library.Residents generally found it to be convenient,efficient,and conducive to learning.Conclusion:Training in clinical pathology diagnosis is a core component of standardized resident training.The electronic pathology reading library has been well-received and recognized by resident doctors.However,further efforts are needed to explore diverse teaching methods that align with modern educational approaches,ultimately contributing to the development of highly skilled resident doctors.展开更多
The construction of a borehole correction library for the multi-component array induction tool in deviated boreholes involves extensive 3D forward modeling and typically requires significant computational resources.To...The construction of a borehole correction library for the multi-component array induction tool in deviated boreholes involves extensive 3D forward modeling and typically requires significant computational resources.To address this challenge,this paper proposes an efficient algorithm for the library construction based on the 3D finite volume method(FVM)and contraction high-order Born approximation(CHBA).First,the electromagnetic(EM)field solution region is divided into two symmetric subregions based on the symmetry of the correction library model and the EM field.Numerical solution on a single subregion,combined with the symmetry boundary extension technique,enhances the efficiency of the 3D numerical simulation.Second,three reference mud conductivities are selected based on the mud conductivity range,and the CHBA is applied to calculate the EM responses at all mud conductivity nodes rapidly.Third,the number of forward simulation operations is further reduced by exploiting the principle that models with different frequencies and different formation conductivities have equivalent EM responses.Numerical experiments demonstrate the correctness and feasibility of the proposed algorithm.Compared to conventional 3D modeling,the proposed algorithm achieves approximately a 20-fold speedup in library construction,effectively reducing computational resources and time consumption.展开更多
As an important method of practical teaching,case-based teaching has become increasingly prominent in international Chinese language education.However,the development of case-based teaching for Chinese characters rema...As an important method of practical teaching,case-based teaching has become increasingly prominent in international Chinese language education.However,the development of case-based teaching for Chinese characters remains insufficient,with limited research outcomes,making it difficult to effectively support the teaching and research of Chinese character instruction.The establishment of a case library for international Chinese character teaching can provide a wealth of teaching cases,meeting the developmental needs of international Chinese language education in the new era.展开更多
This article introduces several of the more significant service delivery innovations and their resulting accomplishments instigated by Dongguan Library(thereafter abbreviated as DGL) in recent years. The textual expos...This article introduces several of the more significant service delivery innovations and their resulting accomplishments instigated by Dongguan Library(thereafter abbreviated as DGL) in recent years. The textual exposition of this paper is based on a case study of DGL by this author about its user-centered vision, mission, immediate objectives and the exhibited service performance within a contextual environment of collegial support from its professional peers. After a five-year period of intensive efforts on such focused professional development and practice, DGL has completed its information service mapping and information delivery for the entire municipality of Dongguan on a 7-day and twentyfour-hour(7/24) basis. This singular feast of accomplishment seems to suggest the moral that any significant development of scale of a municipal library has to be in keeping pace closely with the progress of the society at large in general and with the changing information demands of its local clientele in particular.展开更多
学术界一些研究者认为"Personal Digital Library"与"MyLibrary"均可指个人数字图书馆。然而,两者是不同概念、特征及功能的事物。论文对两者的概念、研究现状及趋势作了详细的论述,旨在揭示这两种事物,为后续研究...学术界一些研究者认为"Personal Digital Library"与"MyLibrary"均可指个人数字图书馆。然而,两者是不同概念、特征及功能的事物。论文对两者的概念、研究现状及趋势作了详细的论述,旨在揭示这两种事物,为后续研究者提供借鉴。展开更多
Digital libraries are complex systems and this brings difficulties for their evaluation. This paper proposes a hierarchical model to solve this problem, and puts the entangled matters into a clear-layered structure. F...Digital libraries are complex systems and this brings difficulties for their evaluation. This paper proposes a hierarchical model to solve this problem, and puts the entangled matters into a clear-layered structure. Firstly, digital libraries(DLs thereafter)are classified into 5 groups in ascending gradations, i.e. mini DLs, small DLs, medium DLs,large DLs, and huge DLs by their scope of operation. Then, according to the characteristics of DLs at different operational scope and level of sophistication, they are further grouped into unitary DLs, union DLs and hybrid DLs accordingly. Based on this simulated structure,a hierarchical model for digital library evaluation is introduced, which evaluates DLs differentiatingly within a hierarchical scheme by using varying criteria based on their specific level of operational complexity such as at the micro-level, medium-level, and/or at the macro-level. Based on our careful examination and analysis of the current literature about DL evaluation system, an experiment is conducted by using the DL evaluation model along with its criteria for unitary DLs at micro-level. The main contents resulting from this evaluation experimentation and also those evaluation indicators and relevant issues of major concerns for DLs at medium-level and macro-level are also to be presented at some length.展开更多
As an important part of National Digital Library(NDL),the National Digital Library Project(NDLP),which was launched in 2005,has attracted wide attention of the society in general.This paper introduces the general situ...As an important part of National Digital Library(NDL),the National Digital Library Project(NDLP),which was launched in 2005,has attracted wide attention of the society in general.This paper introduces the general situation of the project from the following aspects,namely,the characteristics,objectives and contents.It also expounds on the basic ideas and the overall structure of the project and gives an introduction to the design of its basic platform,its application platform,its business management system and its standardization control system.In this paper,the digital resources construction and service delivery of the National Library of China(NLC)are introduced to cover both its present operation as well as those in conjunction with the opening of its new library building during its second-phase of library development.Finally,the most important and difficult point in the construction of the National Digital Library Project is analyzed from the following four perspectives:1)The long-term preservation of digital resources;2)the construction of knowledge organization system;3)the organic integration of the digital library and the traditional library;and 4)the risk of project management and system integration.展开更多
Journal of the Chinese Library Association is an agency publication of the Chinese Library Association.Its purpose is to promote the exchange of library science,the popularization of library science knowledge,and the ...Journal of the Chinese Library Association is an agency publication of the Chinese Library Association.Its purpose is to promote the exchange of library science,the popularization of library science knowledge,and the development of library undertakings.The journal has numerous columns,rich content,long publication time and wide distribution,laying an important foundation for the innovation,transformation and development of modern library cause.展开更多
基金Supported by the Science and Technology Innovation Project of Laoshan Laboratory(Nos.2022QNLM030004-3,LSKJ202203103)the NSFC Innovative Group Grant(No.42221005)+5 种基金the Key Collaborative Research Program of the Alliance of International Science Organizations(No.ANSO-CR-KP-2022-08)the Shandong Provincial Natural Science Foundation(No.ZR2021ZD28)the Major Research Plan of the National Natural Science Foundation(No.92351301)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA22050301)the Taishan Scholars Program(No.tstp20230637)the Qingdao Natural Science Foundation(No.23-2-1-182-zyyd-jch)。
文摘With the increasing accumulation of plastic pollutants in various environments,research on microorganisms(including bacteria,fungi,and algae)with plastic degradation capabilities has gained significant attention.However,only a limited number of microbial plastic-degrading enzymes have been identified to date.This highlights that the degradation mechanisms employed by many plastic-degrading microorganisms,particularly filamentous fungi,remain insufficiently explored.In this study,we utilized a versatile fungal plasmid(pCT74)to express green fluorescent protein(GFP)in a marine-derived fungus Alternaria alternata strain FB1 with plastic degradation capabilities.Upon evaluating the degradation effect of polyester-type polyurethane(PU)film,we observed that different transformants exhibited three kinds of activities(the same,reduced,or enhanced degradation capability)compared to the FB1 wild-type strain.Further analysis of the plasmid fragment insertion sites in different transformants revealed that pCT74 integrates randomly into the genome of the host fungus.Notably,a direct correlation was found between the plasmid insertion site and the degradation capability of the corresponding transformant.Our findings not only redefine the potential applications of plasmid pCT74 in filamentous fungi but also show a novel research approach to identifying key enzymes involved in plastic degradation by fungi.
基金supported by the Program of National Natural Science Foundation of China(Nos.42376116,41322037,U1706210)the Special Funds of Shandong Province for Qingdao National Laboratory of Marine Science and Technology(No.2022QNLM030003-3)+1 种基金the Shandong Province Special Fund‘Frontier Technology and Free Exploration’from Laoshan Laboratory(No.8-01)the State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources,Guangxi Normal University(No.CMEMR2023-B16)。
文摘Mycobacterium marinum can cause disease in both human beings and fishes.Infected fish exhibits symptoms commonly referred to as fish tuberculosis.In this research,we screened a 14-Membered Resorcylic Acid Lactones(RALs)library constructed in the laboratory for in vitro anti-Mycobacterium marinum activity and found that several compounds,including compounds 3,4,6,10,and 17–26,showed good activity.Notably,the trace natural product cochilimycin B(compound 3)possesses significant long-lasting inhibitory function to Mycobacterium marinum.It also shows synergistic effects with drugs like isoniazid,ethambutol,and bedaquiline(FICI≤0.5).In addition,cochilimycin B showed a significant inhibitory effect on the biofilm produced by Mycobacterium marinum,with an inhibition rate of 65.9%.To solve the bottleneck problem of natural product drug sources,we realized an efficient one-step semi-synthetic method to obtain compound 3 with a yield of 32.1%.In vivo,inflammatory changes in BALB/c mice infected with Mycobacterium marinum were characterized.After 12 h of infection,IL-1βwas 20%–30%lower in the spleen and tail of the3-treated group compared to the control group.In the thymus and tail of the treated group,TNF-αlevels were 30%–60%lower than in the control group.This is the first time that the significant anti-Mycobacterium marinum effect of cochilimycin B from 14-Membered Resorcylic Acid Lactones(14-RALs)was reported,offering a new chemical molecule for anti-Mycobacterium marinum drug research.
基金supported by grants from the Wenzhou Science and Technology Bureau Foundation,China(Grant No.:ZY2019014)“Pioneer”and“Leading Goose”R&D Program of Zhejiang,China(Grant No.:2022C03144)National Natural Science Foundation of China(Grant Nos.:82172494,and 82372461).
文摘Ferroptosis of chondrocytes is a significant contributor to osteoarthritis(OA),for which there is still a lack of safe and effective therapeutic drugs targeting ferroptosis.Here,we screen for anti-ferroptotic drugs in Food and Drug Administration(FDA)-approved drug library via a high-throughput manner in chondrocytes.We identified a group of FDA-approved anti-ferroptotic drugs,among which vitamin K showed the most powerful protective effect.Further study demonstrated that vitamin K effectively inhibited ferroptosis and alleviated the extracellular matrix(ECM)degradation in chondrocytes.Intra-articular injection of vitamin K inhibited ferroptosis and alleviated OA phenotype in destabilization of the medial meniscus(DMM)mouse model.Mechanistically,transcriptome sequencing and knockdown experiments revealed that the anti-ferroptotic effects of vitamin K depended on growth arrest-specific 6(Gas6).Furthermore,exogenous expression of Gas6 was found to inhibit ferroptosis through the AXL receptor tyrosine kinase(AXL)/phosphatidylinositol 3-kinase(PI3K)/AKT serine/threonine kinase(AKT)axis.Together,we demonstrate that vitamin K inhibits ferroptosis and alleviates OA progression via enhancing Gas6 expression and its downstream pathway of AXL/PI3K/AKT axis,indicating vitamin K as well as Gas6 to serve as a potential therapeutic target for OA and other ferroptosis-related diseases.
文摘通过对国内外Living Library的考察,结合Web2.0和社会性网络SNS的发展,提出了一个基于SNS的Living Library虚拟社区模型:Virtual Living Library(简称VLL),并就VLL的概念模型的构建、实践和评价等方面进行了论述,讨论了VLL的建设可能性和发展前景。
文摘The aim of this article is to present a unique interpretation of the holistic worldview,both in theory and in practice.It explores how this approach,along with a planning process fundamentally different from conventional methods,was implemented in the design and construction of the Music Center and Library in the city of Tel Aviv.This process forms a coherent representation of a complete worldview:a humanistic,holistic worldview developed and adopted through more than five decades of architectural practice across all scales of design.In this approach,a building is not regarded as a collection of isolated design elements,but as one hierarchical language,in which the building,its interior,and its ornamented details down to the handle of the door is one continuous system.Within this system,the building,its interior spaces,and even the smallest ornamental details,down to the door handles,are conceived as parts of a single,continuous whole.This worldview aligns with contemporary scientific discourse in fields such as cosmology,neurobiology,psychology,complexity theory,and Buddhist philosophy,disciplines with which this body of work is closely associated.
基金supported by the Major Project of the Sichuan Academy of Social Sciences(Project No.24ZD04).
文摘Building on the self-regulation theory and the gap model of service quality,this study proposes a conceptual model for investigating the help-seeking behavior of library users and the behaviors’underlying mechanisms in the context of university libraries.The study focuses on university students as the research participants,and employs a questionnaire survey to collect data.The data is then analyzed,and the model is evaluated using the regression and bootstrap methods.The results indicate that library anxiety can lead to help-seeking behavior,while it also diminishes the users’perception of their interaction quality with the librarians.Moreover,the interaction quality positively influences help-seeking behavior,and self-efficacy and artificial intelligence services exhibit both direct and indirect negative regulatory effects.
基金supported by the National Natural Science Foundation of China(Grant Nos.82273665,82401550).
文摘Pathogenic xenobiotics are ubiquitous in the environment.Environmental carcinogens induce mutations leading to tumors;pathogens relying on environmental media transmission cause infections;exposure to chemical or biological pollutants triggers toxicant poisoning.The mechanisms of xenobiotics work by abnormal expression of genes.Since their inception,genome-wide CRISPR/Cas9 knockout libraries have been rapidly applied in vitro to dissect the mechanism of diseases.Genome-wide screening of CRISPR/Cas9 knockout libraries has helped to identify genes essential for tumor survival,combinations of genes for synthetic lethal effects,and genes associated with drug resistance or susceptibility.In addition,key host factors and complex toxicological mechanisms of viral infection have been elucidated,contributing to the development of antidotes and the reduction of the incidence of adverse effects.CRISPR/Cas9 library screening can be combined with single-cell sequencing and organoid technologies to identify novel gene interactions and more reliable preclinical data.Future trends in such screening aim to identify more potential molecular targets for more exogenous pathogenic factors,combine screening with other emerging technologies to expand its use in in vitro models,and develop more accurate,accessible,and cost-effective genome editing tools.
文摘This paper conducts topic mining and analysis of research literature in the domestic smart library field based on the BERTopic model,aiming to reveal its topic development context and evolution trends.Journal literature in the smart library field collected by CNKI(China National Knowledge Infrastructure)from 2015 to 2024 was analyzed using the BERTopic model and dynamic topic modeling for topic mining and evolution trend analysis.The study found that the domestic smart library field involves multiple core topics,identifying a diversified topic structure centered around“data”,“user”,“5g”,etc.The research results provide data support and practical reference for libraries to accurately identify key points of technology integration during smart transformation and to optimize smart service models.
文摘Objective:To enhance the reading skills of clinical pathology residents,it is essential to establish a well-structured electronic pathology reading library.Methods:In accordance with the Resident Standardization Training Content and Standards(2022 Edition),clinical pathology residents are required to master pathological diagnoses across 11 systems:skin,head and neck,mediastinum and respiratory,digestive,urinary and male reproductive,female reproductive and breast,lymphatic and hematopoietic,bone and soft tissue,cardiovascular,central nervous,and endocrine diseases.Senior pathologists specializing in each subspecialty selected classic pathological slides,which were systematically scanned and compiled into an electronic pathology library.Results:A questionnaire survey was conducted to gather feedback on the electronic pathology reading library.Residents generally found it to be convenient,efficient,and conducive to learning.Conclusion:Training in clinical pathology diagnosis is a core component of standardized resident training.The electronic pathology reading library has been well-received and recognized by resident doctors.However,further efforts are needed to explore diverse teaching methods that align with modern educational approaches,ultimately contributing to the development of highly skilled resident doctors.
基金funded by the Forward-looking Basic Science and Technology Research Project of PetroChina Company Limited(2025DJ104)the National Natural Science Foundation of China(42174150)the National Science and Technology Major Project for Deep Earth Probe and Mineral Resources Exploration(2024ZD1003005).
文摘The construction of a borehole correction library for the multi-component array induction tool in deviated boreholes involves extensive 3D forward modeling and typically requires significant computational resources.To address this challenge,this paper proposes an efficient algorithm for the library construction based on the 3D finite volume method(FVM)and contraction high-order Born approximation(CHBA).First,the electromagnetic(EM)field solution region is divided into two symmetric subregions based on the symmetry of the correction library model and the EM field.Numerical solution on a single subregion,combined with the symmetry boundary extension technique,enhances the efficiency of the 3D numerical simulation.Second,three reference mud conductivities are selected based on the mud conductivity range,and the CHBA is applied to calculate the EM responses at all mud conductivity nodes rapidly.Third,the number of forward simulation operations is further reduced by exploiting the principle that models with different frequencies and different formation conductivities have equivalent EM responses.Numerical experiments demonstrate the correctness and feasibility of the proposed algorithm.Compared to conventional 3D modeling,the proposed algorithm achieves approximately a 20-fold speedup in library construction,effectively reducing computational resources and time consumption.
基金the research result of the 2022 International Chinese Education Research Project“Construction and Research of International Chinese Character Teaching Case Library in Chinese Education”(22YH88D).
文摘As an important method of practical teaching,case-based teaching has become increasingly prominent in international Chinese language education.However,the development of case-based teaching for Chinese characters remains insufficient,with limited research outcomes,making it difficult to effectively support the teaching and research of Chinese character instruction.The establishment of a case library for international Chinese character teaching can provide a wealth of teaching cases,meeting the developmental needs of international Chinese language education in the new era.
文摘This article introduces several of the more significant service delivery innovations and their resulting accomplishments instigated by Dongguan Library(thereafter abbreviated as DGL) in recent years. The textual exposition of this paper is based on a case study of DGL by this author about its user-centered vision, mission, immediate objectives and the exhibited service performance within a contextual environment of collegial support from its professional peers. After a five-year period of intensive efforts on such focused professional development and practice, DGL has completed its information service mapping and information delivery for the entire municipality of Dongguan on a 7-day and twentyfour-hour(7/24) basis. This singular feast of accomplishment seems to suggest the moral that any significant development of scale of a municipal library has to be in keeping pace closely with the progress of the society at large in general and with the changing information demands of its local clientele in particular.
文摘Digital libraries are complex systems and this brings difficulties for their evaluation. This paper proposes a hierarchical model to solve this problem, and puts the entangled matters into a clear-layered structure. Firstly, digital libraries(DLs thereafter)are classified into 5 groups in ascending gradations, i.e. mini DLs, small DLs, medium DLs,large DLs, and huge DLs by their scope of operation. Then, according to the characteristics of DLs at different operational scope and level of sophistication, they are further grouped into unitary DLs, union DLs and hybrid DLs accordingly. Based on this simulated structure,a hierarchical model for digital library evaluation is introduced, which evaluates DLs differentiatingly within a hierarchical scheme by using varying criteria based on their specific level of operational complexity such as at the micro-level, medium-level, and/or at the macro-level. Based on our careful examination and analysis of the current literature about DL evaluation system, an experiment is conducted by using the DL evaluation model along with its criteria for unitary DLs at micro-level. The main contents resulting from this evaluation experimentation and also those evaluation indicators and relevant issues of major concerns for DLs at medium-level and macro-level are also to be presented at some length.
基金supported by the Ministry of Education of P.R.China(Grant No.07JJD870221)
文摘As an important part of National Digital Library(NDL),the National Digital Library Project(NDLP),which was launched in 2005,has attracted wide attention of the society in general.This paper introduces the general situation of the project from the following aspects,namely,the characteristics,objectives and contents.It also expounds on the basic ideas and the overall structure of the project and gives an introduction to the design of its basic platform,its application platform,its business management system and its standardization control system.In this paper,the digital resources construction and service delivery of the National Library of China(NLC)are introduced to cover both its present operation as well as those in conjunction with the opening of its new library building during its second-phase of library development.Finally,the most important and difficult point in the construction of the National Digital Library Project is analyzed from the following four perspectives:1)The long-term preservation of digital resources;2)the construction of knowledge organization system;3)the organic integration of the digital library and the traditional library;and 4)the risk of project management and system integration.
文摘Journal of the Chinese Library Association is an agency publication of the Chinese Library Association.Its purpose is to promote the exchange of library science,the popularization of library science knowledge,and the development of library undertakings.The journal has numerous columns,rich content,long publication time and wide distribution,laying an important foundation for the innovation,transformation and development of modern library cause.
