Evaluation Review最新文献

筛选
英文 中文
Multistage Supply Chain Channel Principal-Agent Model in the Context of e-Commerce With Fairness Preference. 具有公平偏好的电子商务背景下的多阶段供应链渠道委托代理模型。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-12-01 Epub Date: 2024-01-23 DOI: 10.1177/0193841X241227878
Xin Liu, Zhen Xu, Qingxia Zhang, Liang Zhou
{"title":"Multistage Supply Chain Channel Principal-Agent Model in the Context of e-Commerce With Fairness Preference.","authors":"Xin Liu, Zhen Xu, Qingxia Zhang, Liang Zhou","doi":"10.1177/0193841X241227878","DOIUrl":"10.1177/0193841X241227878","url":null,"abstract":"<p><p>This research aims to investigate information asymmetry in e-commerce supply chain channels and the impact of the fair preference model on the behavior and returns of channel members. Therefore, by contrasting it with the model in the completely rational case, this research establishes a more realistic principal-agent model and incorporates the fair preference model into the e-commerce supply chain channel. According to the model's analysis, the effort level of the retailer at each stage is positively correlated with the e-commerce efficiency coefficient, and the incentive coefficient of manufacturers is positively correlated with the e-commerce efficiency coefficient in the case where all rationality is assumed. Manufacturing companies' anticipated profits are positively correlated with the e-commerce efficiency coefficient. According to the fair preference model, retailers will put forth more effort to sell products when their fixed income from manufacturers is higher and their optimal effort level is positively correlated with that income. When e-commerce's efficiency coefficient is higher than 1, the retailer's revenue and effort exceeded those of traditional channels. Manufacturers and retailers both experience Pareto improvements in their earnings after the fair preference model is introduced.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"1115-1145"},"PeriodicalIF":3.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139521421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cluster Randomized Trials Designed to Support Generalizable Inferences. 旨在支持可推广推论的分组随机试验。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-12-01 Epub Date: 2024-01-17 DOI: 10.1177/0193841X231169557
Sarah E Robertson, Jon A Steingrimsson, Issa J Dahabreh
{"title":"Cluster Randomized Trials Designed to Support Generalizable Inferences.","authors":"Sarah E Robertson, Jon A Steingrimsson, Issa J Dahabreh","doi":"10.1177/0193841X231169557","DOIUrl":"10.1177/0193841X231169557","url":null,"abstract":"<p><p>When planning a cluster randomized trial, evaluators often have access to an enumerated cohort representing the target population of clusters. Practicalities of conducting the trial, such as the need to oversample clusters with certain characteristics in order to improve trial economy or support inferences about subgroups of clusters, may preclude simple random sampling from the cohort into the trial, and thus interfere with the goal of producing generalizable inferences about the target population. We describe a nested trial design where the randomized clusters are embedded within a cohort of trial-eligible clusters from the target population and where clusters are selected for inclusion in the trial with known sampling probabilities that may depend on cluster characteristics (e.g., allowing clusters to be chosen to facilitate trial conduct or to examine hypotheses related to their characteristics). We develop and evaluate methods for analyzing data from this design to generalize causal inferences to the target population underlying the cohort. We present identification and estimation results for the expectation of the average potential outcome and for the average treatment effect, in the entire target population of clusters and in its non-randomized subset. In simulation studies, we show that all the estimators have low bias but markedly different precision. Cluster randomized trials where clusters are selected for inclusion with known sampling probabilities that depend on cluster characteristics, combined with efficient estimation methods, can precisely quantify treatment effects in the target population, while addressing objectives of trial conduct that require oversampling clusters on the basis of their characteristics.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"1088-1114"},"PeriodicalIF":3.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11626727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139486566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Internal Control Quality and Boardroom Backscratching.
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-11-29 DOI: 10.1177/0193841X241304134
Lei Huang, Chunmei Tang, Manman Li
{"title":"Internal Control Quality and Boardroom Backscratching.","authors":"Lei Huang, Chunmei Tang, Manman Li","doi":"10.1177/0193841X241304134","DOIUrl":"https://doi.org/10.1177/0193841X241304134","url":null,"abstract":"<p><p>In modern firms, conflicts may arise between the chief executive officer and board of directors due to the separation of ownership and operations. Such conflicts may weaken listed companies' performance in the short term or affect their development in the long term. Using data on Shanghai and Shenzhen A-share listed companies from 2013 to 2022, this study empirically examines the impact of internal control quality on boardroom backscratching. We find that internal control quality significantly mitigates boardroom backscratching by reducing agency costs and increasing analyst attention. This effect is more significant in firms where the management holds less power and the product market is highly competitive. Furthermore, the mitigating effects of internal control quality on boardroom backscratching effectively reduce the risk of the company's share price collapsing. Overall, this study enriches the literature on boardroom backscratching and internal control quality, and provides valuable references for stakeholders, including listed companies, to improve firm governance efficiency and, thus, maintain the stability of capital markets.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"193841X241304134"},"PeriodicalIF":3.0,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142755649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A "Wise" Intervention to Increase Hand Hygiene Compliance of Nurses in Acute Care Units in US Hospitals: A Multiple Baseline Interrupted Time-Series Evaluation. 提高美国医院急诊科护士手部卫生依从性的 "明智 "干预措施:多基线间断时间序列评估。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-11-12 DOI: 10.1177/0193841X241299854
Madeline Sands, Ben Tidwell, Robert Aunger
{"title":"A \"Wise\" Intervention to Increase Hand Hygiene Compliance of Nurses in Acute Care Units in US Hospitals: A Multiple Baseline Interrupted Time-Series Evaluation.","authors":"Madeline Sands, Ben Tidwell, Robert Aunger","doi":"10.1177/0193841X241299854","DOIUrl":"https://doi.org/10.1177/0193841X241299854","url":null,"abstract":"<p><p><b>Objective:</b> This study tested a 'wise' intervention (quick prompt of a specific psychological mec) in acute care hospital units to improve nurses' hand hygiene compliance (HHC). <b>Design:</b> A multiple baseline design in two medical-surgical teaching hospitals in the United States. <b>Measurements:</b> Hand hygiene data was collected using an electronic compliance monitoring system with sensors placed in doorways and on corresponding soap and alcohol-based hand rub dispensers. The outcome measure was the proportion of opportunities in which HH was undertaken by staff per week in each unit. <b>Intervention:</b> A quick-and-easy psychological prime to reinvigorate professional identity. <b>Methods:</b> Interrupted time series analysis using a quasi-Poisson regression model with statistical process control charts for each unit. <b>Results:</b> A statistically significant increase in HHC rates that was sustained for months post-intervention. However, the patterns by unit were not statistically significant once temporal trends were considered. Other factors, such as the unit type and the use of incentives could have impacted the results. <b>Conclusions:</b> These analyses suggest that the aggregate impact should not be taken as evidence of intervention effectiveness. This study therefore cannot be considered to have provided a strong foundation for use of a 'wise' intervention, despite its relatively small financial, logistical and psychological cost.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"193841X241299854"},"PeriodicalIF":3.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Designing Effective Hybrid Course Curriculum: A Design Science Approach to Gamification and Student Outcomes Validation. 设计有效的混合课程:游戏化和学生成果验证的设计科学方法。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-10-09 DOI: 10.1177/0193841X241291752
An Duong Thi Binh, Thu-Hang Hoang, Huy Truong Quang
{"title":"Designing Effective Hybrid Course Curriculum: A Design Science Approach to Gamification and Student Outcomes Validation.","authors":"An Duong Thi Binh, Thu-Hang Hoang, Huy Truong Quang","doi":"10.1177/0193841X241291752","DOIUrl":"https://doi.org/10.1177/0193841X241291752","url":null,"abstract":"<p><p>In the modern educational landscape, the integration of gamification into hybrid learning environments has emerged as a promising approach to enhance student outcomes. However, there remains a lack of comprehensive frameworks for designing gamified hybrid courses and validating their impact on student outcomes. This paper proposes a design science-based approach to gamified course design in hybrid learning contexts. Drawing on the principles of design science research, we developed a framework for designing a gamified hybrid course curriculum that incorporates course content, activities, and assessments based on four elements of gamification (achievement elements, utilitarian value, hedonic benefits, and competition). To validate the effectiveness of our approach, we conducted a study with 294 students enrolled in a hybrid business course that implemented the proposed gamification framework. Our findings indicate that all gamification elements of our proposed gamified hybrid courses positively enhance student engagement, achievement, and satisfaction. Ultimately, this paper not only contributes to the 'gamification in education' literature by providing a comprehensive framework for designing engaging and effective hybrid courses but also proposes a roadmap for the application of design science to embed gamification in business course curriculum design within the context of modern hybrid learning environments.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"193841X241291752"},"PeriodicalIF":3.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142394266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Road Safety Efficiency on Interurban Roads in Spain. 西班牙城际道路的道路安全效率。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-10-01 Epub Date: 2023-10-17 DOI: 10.1177/0193841X231207443
Ángel Tejada, María Pilar Sánchez, Francisco Escribano
{"title":"Road Safety Efficiency on Interurban Roads in Spain.","authors":"Ángel Tejada, María Pilar Sánchez, Francisco Escribano","doi":"10.1177/0193841X231207443","DOIUrl":"10.1177/0193841X231207443","url":null,"abstract":"<p><p>The slowdown in economic development caused by traffic accidents in Spain, together with the disparity in the risk of death or injury due to traffic accidents in its provinces, makes it necessary to evaluate their road safety performance. Therefore, the objectives of the present research are, on the one hand, to find out the level of road safety efficiency of Spanish provinces in the period 2014-2018. On the other hand, it is also aimed to determine to what extent the annual efficiency change is originated by pure changes in efficiency or by technological changes. To achieve both objectives, the nonparametric technique of Data Envelopment Analysis and the Malmquist Index have been used based on the consideration of the Safety Performance Indicators (SPI) as the inputs of the process. The research findings show changes in the level of road safety efficiency in each of the years of the study period. Thus, it is possible to identify a geographical delimitation of the causes that generate changes in efficiency in recent years. A contraction in efficiency and technological progress is identified in part of the Spanish provinces in the north, northeast, and south of Spain.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"771-796"},"PeriodicalIF":3.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41239848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance Evaluation of Urban Emergency Governance: Conceptual Connotations and Empirical Research Based on the Crisis Life Cycle Theory. 城市应急治理绩效评价:基于危机生命周期理论的概念内涵与实证研究
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-10-01 Epub Date: 2023-11-20 DOI: 10.1177/0193841X231215208
Min Wang, Jiaxing Wang
{"title":"Performance Evaluation of Urban Emergency Governance: Conceptual Connotations and Empirical Research Based on the Crisis Life Cycle Theory.","authors":"Min Wang, Jiaxing Wang","doi":"10.1177/0193841X231215208","DOIUrl":"10.1177/0193841X231215208","url":null,"abstract":"<p><p>Although scholars have discussed in depth about the evaluation content and the construction of evaluation index system of emergency management and crisis management, a unified and standardized interpretation of system construction concepts and empirical research on the performance evaluation of urban emergency management is still lacking. In view of this, this paper is based on the theory of the  crisis life cycle, with the four phases of urban emergency management and the content of the task as a clue, constructed a performance evaluation index system containing 12 primary indicators and 44 secondary indicators, and centered on the emergency management work situation of S city. The study reveals that emergency management underperforms in S city, with a score of 5.948, qualifying as the \"defined level\". The \"prevention and preparedness stage\" receives poor evaluation, indicating a significant bias for crisis response instead of prevention. The report suggests the improvement of emergency material stockpile planning, the formation of grassroots emergency response teams, the emergency management publicity, and special emergency drill plans, etc., with a view to providing reference for city managers to comprehensively review and evaluate the emergency management system, and to promote the construction of a more systematic, complete and scientific urban emergency management system.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"945-974"},"PeriodicalIF":3.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138048190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gender Differences in the Impact of the Informal Economy on the Labor Market: Evidence From Middle Eastern Countries. 非正规经济对劳动力市场影响中的性别差异:来自中东国家的证据。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-10-01 Epub Date: 2023-10-30 DOI: 10.1177/0193841X231210597
Elham Taheri, Salih Katircioğlu, Ayhan Tecel
{"title":"Gender Differences in the Impact of the Informal Economy on the Labor Market: Evidence From Middle Eastern Countries.","authors":"Elham Taheri, Salih Katircioğlu, Ayhan Tecel","doi":"10.1177/0193841X231210597","DOIUrl":"10.1177/0193841X231210597","url":null,"abstract":"<p><p>Although considerable discussion has been devoted to the macro determinants of labor market variables across genders, comparatively little attention has been given to the contribution of the informal economy to this market. This study was aimed at empirically investigating the impact of the size of the shadow or informal economy (IE) on labor market variables across genders in 12 Middle Eastern countries. The study used quarterly time series data on each country under investigation, covering 1991 to 2015. Phillips-Perron unit root tests were carried out to verify the stationarity of the examined economic series. An autoregressive distributed lag approach was adopted to conduct cointegration tests and estimate long-run regression coefficients and error correction terms. The results indicated that the IE served men and women differently across countries. Whereas this economy had a long-run positive relationship with men's employment rates in Bahrain, Iran, Qatar, and Turkey, this relationship existed among women only in Israel. IE activities matter in the employment of men and women in Middle Eastern countries. The sizes of IEs in the labor market are a significant factor that favors men's employment rather than that of women.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"865-892"},"PeriodicalIF":3.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71414712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How Does the Digital Economy Drive High-Quality Regional Development? New Evidence From China. 数字经济如何推动区域高质量发展?来自中国的新证据。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-10-01 Epub Date: 2023-11-07 DOI: 10.1177/0193841X231213128
Ying Guo, Fuxin Jiang
{"title":"How Does the Digital Economy Drive High-Quality Regional Development? New Evidence From China.","authors":"Ying Guo, Fuxin Jiang","doi":"10.1177/0193841X231213128","DOIUrl":"10.1177/0193841X231213128","url":null,"abstract":"<p><p>The digital economy, which boasts general technology, intense penetration, platform ecology, and low marginal cost, is a product of advanced digital technology. This new engine has become a driving force for high-quality economic development. From the three aspects of development momentum, efficiency, and structure, this paper profoundly explores internal mechanisms to lead the high-quality growth of the regional economy. By constructing an econometric model, the influence effect and means of the digital economy on the high-quality development of the regional economy are empirically tested. The digital economy and its three sub-dimensions can significantly promote the high-quality development of the regional economy. However, industrial digitalization has the most vital role in promoting it. The digital economy has shown a more vital promotion role in the central and western regions and provinces with low total factor productivity, and it can indirectly impact high-quality economic development by promoting dynamic, efficient, and structural changes.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"893-917"},"PeriodicalIF":3.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71487394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementation of Diabetes Education and Support in Appalachia. 阿巴拉契亚糖尿病教育和支持的实施。
IF 3 4区 社会学
Evaluation Review Pub Date : 2024-10-01 Epub Date: 2023-08-24 DOI: 10.1177/0193841X231195392
Ayron E Walker, Kasey Yost, Melissa Olfert
{"title":"Implementation of Diabetes Education and Support in Appalachia.","authors":"Ayron E Walker, Kasey Yost, Melissa Olfert","doi":"10.1177/0193841X231195392","DOIUrl":"10.1177/0193841X231195392","url":null,"abstract":"<p><p>Limited research on diabetes education and support implementation in Appalachia, which is a critical knowledge gap considering barriers to care, and high prevalence rates. The aim was to understand what each facility is providing regarding diabetes education and services within West Virginia. This study reports cognitive interview qualitative findings from a multi-methods study. Individuals were recruited through an online search to identify clinics, organizations, and hospital staff that provided diabetes education in the state of West Virginia. Eligible participants were individuals who facilitated and managed diabetes education and support in counties of West Virginia. The interviews followed an 11-item interview guide, approved, and reviewed by a practicing Registered Dietitian and Certified Diabetes Care Education Specialist in West Virginia. All qualitative data from the interviews were hand-coded using grounded theory, by two researchers. 15 participating organizations from the state of West Virginia were included and described three phenomena: Diabetes Education Implementation (differences in: evaluation measures, modality, delivery format, topical areas); Barriers to Care (staffing, lack of training, evaluation, loss of research partnerships and funding); and Facilitators to Care (community-based involvement, interdisciplinary collaboration, capacity building (trainings). There are concerns with program drift and \"risky\" adaptations such as inconsistent evaluative measures, lack of training for program facilitators, variety of delivery formats, and content material. Findings recommend more alignment in program delivery to better implementation. Further studies should assess patient experiences with implemented diabetes education programs in West Virginia to further support the current research findings.</p>","PeriodicalId":47533,"journal":{"name":"Evaluation Review","volume":" ","pages":"975-988"},"PeriodicalIF":3.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10116441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信