Many existing studies have considered the factors influencing review helpfulness,mainly focusing on reviewer impact,review informativeness,and managerial response,based on signaling theory.However,previous studies hav...Many existing studies have considered the factors influencing review helpfulness,mainly focusing on reviewer impact,review informativeness,and managerial response,based on signaling theory.However,previous studies have simply regarded these factors as independent signals,thus ignoring their in-depth transmission and reception processes.The conclusions about the impact of reviewers on review helpfulness are also inconsistent due to the inaccurate measure-ment of variables.To fill the above gaps,we followed the signaling timeline theoretical framework used in signaling the-ory and employed a bootstrapping analysis to examine how reviewer impact,review informativeness,and hotel manageri-al responses interact to influence review helpfulness.In this study,we used a unique dataset that included official labels from one leading online travel agency.The results show that reviewer impact may affect review helpfulness sequentially through review informativeness and hotel managerial response.Furthermore,by using official labels,both reviewer expert-ise and reviewer experience significantly affect review helpfulness.Finally,we discussed the theoretical and practical im-plications of these findings.展开更多
Space solar power(SSP)system,a major type of space-based power-generating equipment,is an important infrastructure providing massive,continuous,and stable green electricity by utilizing solar energy in space.Many coun...Space solar power(SSP)system,a major type of space-based power-generating equipment,is an important infrastructure providing massive,continuous,and stable green electricity by utilizing solar energy in space.Many countries and organizations consider SSP to be one of the most promising clean energy sources.The historical activities of SSP in the world are summarized.This review focuses on the significant development of SSP during the last 10 years,which is the most important period for SSP.The latest international SSP development programmes in the United States,ESA,Japan,China,UK and Korea are presented.Some significant solar power satellite(SPS)concepts proposed in the decade,including typical SPS-ALPHA,MR-SPS,CASSIOPeiA SPS,et al.,are introduced.The technical and non-technical challenges are also listed and several important in-space demonstration missions in recent years and in the near future are introduced.The conclusion is that the next 5 to 10 years will be an important period for rapidly developing the key technologies and conducting on-orbit demonstration and application.Controlling the mutual position relationship between the solar array and the transmitting antenna becomes a core issue to be considered in the innovative design of the SPS.Wireless power transmission technologies would be the demonstration focus for the first step.It is expected that the first commercial SPS would be constructed as early as 2040.展开更多
Interest in the possibility of storing and transporting natural gas in the form of clathrate hydrates has been increasing in recent years, particularly in some gas-importing and exporting countries.The technologies ne...Interest in the possibility of storing and transporting natural gas in the form of clathrate hydrates has been increasing in recent years, particularly in some gas-importing and exporting countries.The technologies necessary for realizing this possibility may be classified into those relevant to the four serial processes (a) the formation of a hydrate, (b) the processing (dewatering, pelletizing, etc. ) of the formed hydrate, (c) the storage and transportation of the processed hydrate, and (d) the regasification (dissociation) of the hydrate. The technological development of any of these processes is still at an early stage. For hydrate formation, for example, various rival operations have been proposed. However,many of them have never been subjected to actual tests for practical use. More efforts are required for examining the different hydrate-formation technologies and for rating them by comparison. The general design of the processing of the formed hydrate inevitably depends on both the hydrate-formation process and the storage/transportation process, hence it has a wide variability. The major uncertainty in the storage-process design lies in the as-yet unclarified utility of the "self-preservation" effect of the naturalgas hydrates. The process design as well as the relevant cost evaluation should strongly depend on whether the hydrates are well preserved at atmospheric pressure in large-scale storage facilities. The regasification process has been studied less extensively than the former processes. The state of the art of the technological development in each of the serial processes is reviewed, placing emphasis on the hydrate formation process.展开更多
Code review is an important process to reduce code defects and improve software quality. In social coding communities like GitHub, as everyone can submit Pull-Requests, code review plays a more important role than eve...Code review is an important process to reduce code defects and improve software quality. In social coding communities like GitHub, as everyone can submit Pull-Requests, code review plays a more important role than ever before, and the process is quite time-consuming. Therefore, finding and recommending proper reviewers for the emerging Pull-Requests becomes a vital task. However, most of the current studies mainly focus on recommending reviewers by checking whether they will participate or not without differentiating the participation types. In this paper, we develop a two-layer reviewer recommendation model to recommend reviewers for Pull-Requests （PRs） in GitHub projects from the technical and managerial perspectives. For the first layer, we recommend suitable developers to review the target PRs based on a hybrid recommendation method. For the second layer, after getting the recommendation results from the first layer, we specify whether the target developer will technically or managerially participate in the reviewing process. We conducted experiments on two popular projects in GitHub, and tested the approach using PRs created between February 2016 and February 2017. The results show that the first layer of our recommendation model performs better than the previous work, and the second layer can effectively differentiate the types of participation.展开更多
A class of nonidentical parallel machine scheduling problems are considered in which the goal is to minimize the total weighted completion time. Models and relaxations are collected. Most of these problems are NP-hard...A class of nonidentical parallel machine scheduling problems are considered in which the goal is to minimize the total weighted completion time. Models and relaxations are collected. Most of these problems are NP-hard, in the strong sense, or open problems, therefore approximation algorithms are studied. The review reveals that there exist some potential areas worthy of further research.展开更多
OBJECTIVE To systematically assess the efficacy and safety of acupuncture in treating acute tonsillitis,providing a reference for clinical decision-making.METHODS We searched PubMed,CENTRAL,Embase,Web of Science,China...OBJECTIVE To systematically assess the efficacy and safety of acupuncture in treating acute tonsillitis,providing a reference for clinical decision-making.METHODS We searched PubMed,CENTRAL,Embase,Web of Science,China National Knowledge Infrastruc⁃ture,China Biomedical,clinical research registra⁃tion platforms,grey literature,and the reference lists of the selected studies from inception to Oct.30,2022.The risk of bias assessment used Rev⁃Man.Meta-analysis was performed using STATA with Hedges′g value.In addition,we performed subgroup analysis,meta-regression,and publica⁃tion bias detection with Harbord′s and Egger′s tests.RESULTS We included 19 randomized controlled trials comprising 1701 patients,of which 1 study was assessed high risk of bias.The primary outcome,the response rate,revealed that acupuncture was more effective than antibi⁃otics.The secondary outcomes showed that the difference in the reduction of the VAS scores,sore throat time,and white blood cell counts was statistically significant with acupuncture compared to antibiotics.However,the difference in modulat⁃ing neutrophil percentage and C-reactive protein was not statistically significant.Besides,acupuncture treatments showed a lower incidence of adverse events than antibiotics.CONCLUSION Acupuncture therapy on acute tonsillitis is safe,and the response rate is superior to antibiotics.For alleviating sore throat symptoms,shortening sore throat time,and improving immune in fl am mation index,acupuncture has positive signi fi cance.Nevertheless,because of the limitations of this study,our conclusions should be inter⁃preted with caution.Future efforts still need more high-quality trials to improve the methodology and reporting quality.展开更多
The global geoparks network was reviewed in terms of its establishment background,management,progress and so on to gain an outlook on its future in this paper.It can be concluded that the network will have more evenly...The global geoparks network was reviewed in terms of its establishment background,management,progress and so on to gain an outlook on its future in this paper.It can be concluded that the network will have more evenly and extensively-distributed members throughout the world,more thorough and comprehensive cooperation between its members,more展开更多
2014年5月29日，由美国化学会主办的《Chemical Reviews》（2012年影响因子为41．298）网站刊登了《农药学学报》编委、沈阳化工研究院国家新农药创制与开发重点实验室刘长令教授等撰写的论文“Application of the Intermediate Derivat...2014年5月29日，由美国化学会主办的《Chemical Reviews》（2012年影响因子为41．298）网站刊登了《农药学学报》编委、沈阳化工研究院国家新农药创制与开发重点实验室刘长令教授等撰写的论文“Application of the Intermediate Derivatization Approach in Agrochemical Discovery”（新农药创新策略“中间体衍生化策略在农用化学品创制中的应用”）。该杂志副主编Robert D． Kuchta教授对该文给予了很高的评价“It is clearly an outstanding manuscript， and we are pleased to have the opportunity of publishing it”。展开更多
We are grateful for the work of the following colleagues,who acted as reviewers for submitted manuscripts during 2019.Names with an asterisk indicates colleagues who reviewed more than one manuscript.
Magnetite and hematite,which are main existing forms of iron oxides in nature,could transform differently in various geological environment.Traditionally,the transformation of magnetite and
We are grateful for the work of the following colleagues, who acted as reviewers for submitted manuscripts during 2018. Names with an asterisk indicates colleagues who reviewed more than one manuscript.
Rhetorical criticism enjoys a long history of studies, and the researchin this field upsurged at the end of 20th century and the beginning of 21st century.In the article, the author aims to investigate the development...Rhetorical criticism enjoys a long history of studies, and the researchin this field upsurged at the end of 20th century and the beginning of 21st century.In the article, the author aims to investigate the developmental trends in this filedat home and abroad by a literature review of the studies in the past two decades.It has been proved in the research that domestic studies can be classified into fourtypes—introducing theories of western rhetorical criticism in the U.S., building newmodels of western rhetorical criticism, comparing theories of Chinese and Westernrhetorical criticism, and applying western rhetorical criticism into domestic use; whilestudies abroad in this field, especially in the U. S., keep deepening and upgrading itstheories on the basis of its profundity, and enlarging its research scope. A literaturereview of western rhetorical criticism in the past two decades can provide someacademic nutrition to domestic research and deliver certain implicational meaningto it. In the future, more studies should be carried out to systematize the theory ofwestern rhetorical criticism and to incorporate the updated theory into the analysis ofrhetorical practice in our country, thus expressing the strong interpretative power ofwestern rhetorical criticism.展开更多
介绍ArcGIS Data Reviewer基本功能和特性,对其应用于林业地理信息矢量数据质量检查,如图斑重复、重叠,图斑间有间隙、多部件、狭长面、急锐角化、漏绘等空间关系,以及属性字段之间的逻辑性检查等的方法和步骤,举例进行了详细叙述,可为...介绍ArcGIS Data Reviewer基本功能和特性,对其应用于林业地理信息矢量数据质量检查,如图斑重复、重叠,图斑间有间隙、多部件、狭长面、急锐角化、漏绘等空间关系,以及属性字段之间的逻辑性检查等的方法和步骤,举例进行了详细叙述,可为该软件模块的使用提供参考。展开更多
The sustainable development of private university has become the focus of the academia and the private higher education after an approximately golden period.Through the method of literature review and cluster analysis...The sustainable development of private university has become the focus of the academia and the private higher education after an approximately golden period.Through the method of literature review and cluster analysis,this paper studies the concept of sustainable development of private university from the perspective of the connotation definition and epitaxial recognition,in order to effectively reveal the essence of the sustainable development of private university,hoping to provide some certain support for the theory and practice of sustainable development of private university.展开更多
Objective:To provide information on twin births and associated factors in Port barcourt South South Nigeria.Methods:Data on twin deliveries from 1st January 2003 to 31st December 2008 were collected and analysed.This ...Objective:To provide information on twin births and associated factors in Port barcourt South South Nigeria.Methods:Data on twin deliveries from 1st January 2003 to 31st December 2008 were collected and analysed.This included the maternal age and parity,gestation age,Apqar scores,sex and birth weight of twins.Results:A total of 11042 deliveries occurred over the study period with 333 being twins giving a twin rate of 1∶33.Male twins constituted 48% of twin births with male to female ratio of 1∶1.08.The mean age and parity of mothers were 29.6 years and 2.5 respectively.Presentation of the cephalic/cephalic for the first and second twins was the most common(63.4%).Severe birth asphyxia(first minute Apgar score 1-3)occurred in 3.9% of twins.Male-male twin pair occurred in 28.5% of twins,male-female in 39% while female-female occurred in 32.5%.The Caesarian section rate was 48%.Conclusion:The twining rate in this study is high.In this locality,there is a need for early ultrasound scanning of pregnant women particularly those of parities 1 to 3 and those aged 25-34 years in whom highest rates of twinning occurred to detect twinning when present and refer them to sufficiently equipped centres for adequate antenatal and perinatal care.展开更多
The evolution and development of Searle’s philosophy of mind can be divided into two important stages,i.e.the origin and beginning stage between 1960sand 1970s,the formation and development stage since 1980s.Searle’...The evolution and development of Searle’s philosophy of mind can be divided into two important stages,i.e.the origin and beginning stage between 1960sand 1970s,the formation and development stage since 1980s.Searle’s Speech Act Theory started the research on philosophy of mind,which is considered as the origin of his philosophy of mind.The Theories of Intentionality and Chinese Room Argument are the most important and most influential academic findings in his research in the field of philosophy of mind,which lay a solid theoretical foundation for the formation and development of his theories of philosophy of mind.Searle’s philosophy of mind finds wide prospect in the research field,which provides a new direction to understand the world and probe into mind,proposes a new perspective and methodology for the study of language,and promotes the new development of the study of language.展开更多
基金supported by the Philosophy and Social Science Planning Program of Shanghai(2021BGL018).
文摘Many existing studies have considered the factors influencing review helpfulness,mainly focusing on reviewer impact,review informativeness,and managerial response,based on signaling theory.However,previous studies have simply regarded these factors as independent signals,thus ignoring their in-depth transmission and reception processes.The conclusions about the impact of reviewers on review helpfulness are also inconsistent due to the inaccurate measure-ment of variables.To fill the above gaps,we followed the signaling timeline theoretical framework used in signaling the-ory and employed a bootstrapping analysis to examine how reviewer impact,review informativeness,and hotel manageri-al responses interact to influence review helpfulness.In this study,we used a unique dataset that included official labels from one leading online travel agency.The results show that reviewer impact may affect review helpfulness sequentially through review informativeness and hotel managerial response.Furthermore,by using official labels,both reviewer expert-ise and reviewer experience significantly affect review helpfulness.Finally,we discussed the theoretical and practical im-plications of these findings.
基金Civil Aerospace Technology Research Project(D010103)。
文摘Space solar power(SSP)system,a major type of space-based power-generating equipment,is an important infrastructure providing massive,continuous,and stable green electricity by utilizing solar energy in space.Many countries and organizations consider SSP to be one of the most promising clean energy sources.The historical activities of SSP in the world are summarized.This review focuses on the significant development of SSP during the last 10 years,which is the most important period for SSP.The latest international SSP development programmes in the United States,ESA,Japan,China,UK and Korea are presented.Some significant solar power satellite(SPS)concepts proposed in the decade,including typical SPS-ALPHA,MR-SPS,CASSIOPeiA SPS,et al.,are introduced.The technical and non-technical challenges are also listed and several important in-space demonstration missions in recent years and in the near future are introduced.The conclusion is that the next 5 to 10 years will be an important period for rapidly developing the key technologies and conducting on-orbit demonstration and application.Controlling the mutual position relationship between the solar array and the transmitting antenna becomes a core issue to be considered in the innovative design of the SPS.Wireless power transmission technologies would be the demonstration focus for the first step.It is expected that the first commercial SPS would be constructed as early as 2040.
文摘Interest in the possibility of storing and transporting natural gas in the form of clathrate hydrates has been increasing in recent years, particularly in some gas-importing and exporting countries.The technologies necessary for realizing this possibility may be classified into those relevant to the four serial processes (a) the formation of a hydrate, (b) the processing (dewatering, pelletizing, etc. ) of the formed hydrate, (c) the storage and transportation of the processed hydrate, and (d) the regasification (dissociation) of the hydrate. The technological development of any of these processes is still at an early stage. For hydrate formation, for example, various rival operations have been proposed. However,many of them have never been subjected to actual tests for practical use. More efforts are required for examining the different hydrate-formation technologies and for rating them by comparison. The general design of the processing of the formed hydrate inevitably depends on both the hydrate-formation process and the storage/transportation process, hence it has a wide variability. The major uncertainty in the storage-process design lies in the as-yet unclarified utility of the "self-preservation" effect of the naturalgas hydrates. The process design as well as the relevant cost evaluation should strongly depend on whether the hydrates are well preserved at atmospheric pressure in large-scale storage facilities. The regasification process has been studied less extensively than the former processes. The state of the art of the technological development in each of the serial processes is reviewed, placing emphasis on the hydrate formation process.
基金Project(2016-YFB1000805)supported by the National Grand R&D Plan,ChinaProjects(61502512,61432020,61472430,61532004)supported by the National Natural Science Foundation of China
文摘Code review is an important process to reduce code defects and improve software quality. In social coding communities like GitHub, as everyone can submit Pull-Requests, code review plays a more important role than ever before, and the process is quite time-consuming. Therefore, finding and recommending proper reviewers for the emerging Pull-Requests becomes a vital task. However, most of the current studies mainly focus on recommending reviewers by checking whether they will participate or not without differentiating the participation types. In this paper, we develop a two-layer reviewer recommendation model to recommend reviewers for Pull-Requests （PRs） in GitHub projects from the technical and managerial perspectives. For the first layer, we recommend suitable developers to review the target PRs based on a hybrid recommendation method. For the second layer, after getting the recommendation results from the first layer, we specify whether the target developer will technically or managerially participate in the reviewing process. We conducted experiments on two popular projects in GitHub, and tested the approach using PRs created between February 2016 and February 2017. The results show that the first layer of our recommendation model performs better than the previous work, and the second layer can effectively differentiate the types of participation.
基金the National Natural Science Foundation of China (70631003)the Hefei University of Technology Foundation (071102F).
文摘A class of nonidentical parallel machine scheduling problems are considered in which the goal is to minimize the total weighted completion time. Models and relaxations are collected. Most of these problems are NP-hard, in the strong sense, or open problems, therefore approximation algorithms are studied. The review reveals that there exist some potential areas worthy of further research.
文摘OBJECTIVE To systematically assess the efficacy and safety of acupuncture in treating acute tonsillitis,providing a reference for clinical decision-making.METHODS We searched PubMed,CENTRAL,Embase,Web of Science,China National Knowledge Infrastruc⁃ture,China Biomedical,clinical research registra⁃tion platforms,grey literature,and the reference lists of the selected studies from inception to Oct.30,2022.The risk of bias assessment used Rev⁃Man.Meta-analysis was performed using STATA with Hedges′g value.In addition,we performed subgroup analysis,meta-regression,and publica⁃tion bias detection with Harbord′s and Egger′s tests.RESULTS We included 19 randomized controlled trials comprising 1701 patients,of which 1 study was assessed high risk of bias.The primary outcome,the response rate,revealed that acupuncture was more effective than antibi⁃otics.The secondary outcomes showed that the difference in the reduction of the VAS scores,sore throat time,and white blood cell counts was statistically significant with acupuncture compared to antibiotics.However,the difference in modulat⁃ing neutrophil percentage and C-reactive protein was not statistically significant.Besides,acupuncture treatments showed a lower incidence of adverse events than antibiotics.CONCLUSION Acupuncture therapy on acute tonsillitis is safe,and the response rate is superior to antibiotics.For alleviating sore throat symptoms,shortening sore throat time,and improving immune in fl am mation index,acupuncture has positive signi fi cance.Nevertheless,because of the limitations of this study,our conclusions should be inter⁃preted with caution.Future efforts still need more high-quality trials to improve the methodology and reporting quality.
文摘The global geoparks network was reviewed in terms of its establishment background,management,progress and so on to gain an outlook on its future in this paper.It can be concluded that the network will have more evenly and extensively-distributed members throughout the world,more thorough and comprehensive cooperation between its members,more
文摘2014年5月29日，由美国化学会主办的《Chemical Reviews》（2012年影响因子为41．298）网站刊登了《农药学学报》编委、沈阳化工研究院国家新农药创制与开发重点实验室刘长令教授等撰写的论文“Application of the Intermediate Derivatization Approach in Agrochemical Discovery”（新农药创新策略“中间体衍生化策略在农用化学品创制中的应用”）。该杂志副主编Robert D． Kuchta教授对该文给予了很高的评价“It is clearly an outstanding manuscript， and we are pleased to have the opportunity of publishing it”。
文摘We are grateful for the work of the following colleagues,who acted as reviewers for submitted manuscripts during 2019.Names with an asterisk indicates colleagues who reviewed more than one manuscript.
文摘Magnetite and hematite,which are main existing forms of iron oxides in nature,could transform differently in various geological environment.Traditionally,the transformation of magnetite and
文摘We are grateful for the work of the following colleagues, who acted as reviewers for submitted manuscripts during 2018. Names with an asterisk indicates colleagues who reviewed more than one manuscript.
文摘Rhetorical criticism enjoys a long history of studies, and the researchin this field upsurged at the end of 20th century and the beginning of 21st century.In the article, the author aims to investigate the developmental trends in this filedat home and abroad by a literature review of the studies in the past two decades.It has been proved in the research that domestic studies can be classified into fourtypes—introducing theories of western rhetorical criticism in the U.S., building newmodels of western rhetorical criticism, comparing theories of Chinese and Westernrhetorical criticism, and applying western rhetorical criticism into domestic use; whilestudies abroad in this field, especially in the U. S., keep deepening and upgrading itstheories on the basis of its profundity, and enlarging its research scope. A literaturereview of western rhetorical criticism in the past two decades can provide someacademic nutrition to domestic research and deliver certain implicational meaningto it. In the future, more studies should be carried out to systematize the theory ofwestern rhetorical criticism and to incorporate the updated theory into the analysis ofrhetorical practice in our country, thus expressing the strong interpretative power ofwestern rhetorical criticism.
基金the phased achievement of the key project of 12th Five-Year Plan of the National Education Sciences"The Study of Distribution and Influential Factors of Private University in China"(NO.DFA140218)the key project of soft science research of Sichuan"Sustainable Development and the Construction of Dynamic Mechanism and Assessment System of Private University"(NO.2013RZB01009)
文摘The sustainable development of private university has become the focus of the academia and the private higher education after an approximately golden period.Through the method of literature review and cluster analysis,this paper studies the concept of sustainable development of private university from the perspective of the connotation definition and epitaxial recognition,in order to effectively reveal the essence of the sustainable development of private university,hoping to provide some certain support for the theory and practice of sustainable development of private university.
文摘Objective:To provide information on twin births and associated factors in Port barcourt South South Nigeria.Methods:Data on twin deliveries from 1st January 2003 to 31st December 2008 were collected and analysed.This included the maternal age and parity,gestation age,Apqar scores,sex and birth weight of twins.Results:A total of 11042 deliveries occurred over the study period with 333 being twins giving a twin rate of 1∶33.Male twins constituted 48% of twin births with male to female ratio of 1∶1.08.The mean age and parity of mothers were 29.6 years and 2.5 respectively.Presentation of the cephalic/cephalic for the first and second twins was the most common(63.4%).Severe birth asphyxia(first minute Apgar score 1-3)occurred in 3.9% of twins.Male-male twin pair occurred in 28.5% of twins,male-female in 39% while female-female occurred in 32.5%.The Caesarian section rate was 48%.Conclusion:The twining rate in this study is high.In this locality,there is a need for early ultrasound scanning of pregnant women particularly those of parities 1 to 3 and those aged 25-34 years in whom highest rates of twinning occurred to detect twinning when present and refer them to sufficiently equipped centres for adequate antenatal and perinatal care.
基金funded by the Postgraduate English Education and Teaching Research Project of Chongqing Education Commission in 2012(No.yjg123080)
文摘The evolution and development of Searle’s philosophy of mind can be divided into two important stages,i.e.the origin and beginning stage between 1960sand 1970s,the formation and development stage since 1980s.Searle’s Speech Act Theory started the research on philosophy of mind,which is considered as the origin of his philosophy of mind.The Theories of Intentionality and Chinese Room Argument are the most important and most influential academic findings in his research in the field of philosophy of mind,which lay a solid theoretical foundation for the formation and development of his theories of philosophy of mind.Searle’s philosophy of mind finds wide prospect in the research field,which provides a new direction to understand the world and probe into mind,proposes a new perspective and methodology for the study of language,and promotes the new development of the study of language.
