The research purpose of this article was to analyse the search engine marketing and social media marketing predictive trends that are occurring both regionally in Africa and on a global scale. The motivation for the study was to offer pragmatic advice to business practitioners in crafting digital marketing strategies by leveraging search engine marketing and social media marketing trends. In terms of research methodology, a systematic literature survey method and an inductive research approach were applied. Social media concepts were critically analysed and evaluated to determine their link to the current research focus area. The main literature findings showed that the main trends include the use of Accelerated Mobile Pages, micro-vlogging, voice search, blogging and social messaging. In the continuous dynamic digital landscape, marketers need to embrace the art of doing business by adopting new search engine marketing and social media marketing techniques. With this in mind, it is important for corporations to utilize social media for the development of marketing strategies. The viral power of social media makes it more attractive to businesses promoting their products to target markets. The article also provides an intuitive apprehension of the predictive trends in digital marketing, which are vital for developing an agile stance to outwit rivals in blue oceans.
{"title":"Search engine marketing and social media marketing predictive trends","authors":"B. Nyagadza","doi":"10.1386/jdmp_00036_1","DOIUrl":"https://doi.org/10.1386/jdmp_00036_1","url":null,"abstract":"The research purpose of this article was to analyse the search engine marketing and social media marketing predictive trends that are occurring both regionally in Africa and on a global scale. The motivation for the study was to offer pragmatic advice to business practitioners in crafting digital marketing strategies by leveraging search engine marketing and social media marketing trends. In terms of research methodology, a systematic literature survey method and an inductive research approach were applied. Social media concepts were critically analysed and evaluated to determine their link to the current research focus area. The main literature findings showed that the main trends include the use of Accelerated Mobile Pages, micro-vlogging, voice search, blogging and social messaging. In the continuous dynamic digital landscape, marketers need to embrace the art of doing business by adopting new search engine marketing and social media marketing techniques. With this in mind, it is important for corporations to utilize social media for the development of marketing strategies. The viral power of social media makes it more attractive to businesses promoting their products to target markets. The article also provides an intuitive apprehension of the predictive trends in digital marketing, which are vital for developing an agile stance to outwit rivals in blue oceans.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46504740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Bali, Sherko Jabar, Hazhar Jalal, Mahdi Sofi-Karim
Influenced by digital technologies, the cost of media production has considerably decreased, and the traditional media is faced with new agile, flexible and low-cost media entrepreneurs. This article examines the dynamics of the Iraqi media market transformation with an emphasis on factors that help to merge media entrepreneurs and digital media firms that target an audience on social media. A qualitative method was adopted in this study using open, in-depth interviews with nineteen media entrepreneurs and three managers of media firms. The study revealed that relative freedom and advanced communication technologies have encouraged media entrepreneurs to drive the new media on producing short videos and broadcast them on social media, which has become popular among media consumers. This new era in Iraqi media entrepreneurship has created an abstract space in which media entrepreneurs get involved in the media market, collaborate with international media and deliver values through the use of user-generated content and flexible journalism. This opportunity is shaped by three key interrelated factors: first, the relative freedom of journalism that resulted from the political environment, current regulations and advanced communication technologies that provide more space of freedom; second, the development of communication technologies that allow journalists and media entrepreneurs to employ the media market effectively; third, the emergence of media entrepreneurs themselves who are convinced to seize the opportunities presented by the two previous factors.
{"title":"Iraqi media entrepreneurs across social media: Factors and challenges","authors":"A. Bali, Sherko Jabar, Hazhar Jalal, Mahdi Sofi-Karim","doi":"10.1386/jdmp_00024_1","DOIUrl":"https://doi.org/10.1386/jdmp_00024_1","url":null,"abstract":"Influenced by digital technologies, the cost of media production has considerably decreased, and the traditional media is faced with new agile, flexible and low-cost media entrepreneurs. This article examines the dynamics of the Iraqi media market transformation with an emphasis on factors that help to merge media entrepreneurs and digital media firms that target an audience on social media. A qualitative method was adopted in this study using open, in-depth interviews with nineteen media entrepreneurs and three managers of media firms. The study revealed that relative freedom and advanced communication technologies have encouraged media entrepreneurs to drive the new media on producing short videos and broadcast them on social media, which has become popular among media consumers. This new era in Iraqi media entrepreneurship has created an abstract space in which media entrepreneurs get involved in the media market, collaborate with international media and deliver values through the use of user-generated content and flexible journalism. This opportunity is shaped by three key interrelated factors: first, the relative freedom of journalism that resulted from the political environment, current regulations and advanced communication technologies that provide more space of freedom; second, the development of communication technologies that allow journalists and media entrepreneurs to employ the media market effectively; third, the emergence of media entrepreneurs themselves who are convinced to seize the opportunities presented by the two previous factors.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43318371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aims to open a discussion on the changing face of cultural imperialism within the context of contemporary capitalism’s conditions and the changing habits of Turkish television viewers. Although the past two decades have witnessed a growing interest in both the changing patterns of television viewing habits and viewers’ class status, this process has focused almost exclusively on the West and specifically Euro-American metropolitan viewers’ experiences. By contrast, very few studies have directly addressed other contexts, specifically, television viewers in non-western countries. Based on cultural proximity and cultural discount theories, this study analyses the reasons and outcomes behind Turkish television viewers’ ongoing tendency towards the video-on-demand platforms, such as Netflix, HBO, Hulu, Amazon Prime Video or their domestic counterparts, like Puhu or Blu TV, under Turkey’s ongoing modernization process. The results suggest that video-on-demand platforms provide particular interest for television viewers while offering relative freedom from state-controlled public media or strictly regulated private channels. Nevertheless, these platforms have appealed to both Turkish upper-middle-class viewers and younger viewers who have the cultural background to enjoy and appreciate the content on offer. This study also indicates how access to streaming platforms in Turkey mainly relies on the class status of television viewers, and that this kind of cultural flow, to some extent, creates a digital divide in Turkey.
本研究旨在探讨在当代资本主义条件和土耳其电视观众习惯变化的背景下，文化帝国主义不断变化的面貌。尽管在过去的二十年里，人们对电视观看习惯的变化模式和观众的阶级地位越来越感兴趣，但这一过程几乎完全集中在西方，特别是欧美大都市观众的经历上。相比之下，很少有研究直接涉及其他情况，特别是非西方国家的电视观众。基于文化接近和文化折扣理论，本研究分析了土耳其电视观众在土耳其正在进行的现代化进程中，对视频点播平台(如Netflix、HBO、Hulu、Amazon Prime Video或其国内同类平台，如Puhu或Blu TV)的持续倾向背后的原因和结果。结果表明，视频点播平台为电视观众提供了特别的兴趣，同时提供了相对于国家控制的公共媒体或严格监管的私人频道的自由。然而，这些平台吸引了土耳其中上层的观众和年轻观众，他们有文化背景，可以欣赏和欣赏所提供的内容。这项研究还表明，在土耳其，访问流媒体平台主要取决于电视观众的阶级地位，这种文化流动在某种程度上造成了土耳其的数字鸿沟。
{"title":"From state-controlled media to video-on-demand platforms: Rethinking global cultural flows and television viewers’ changing habits in the case of Turkey","authors":"Serhat Kaymas","doi":"10.1386/jdmp_00031_1","DOIUrl":"https://doi.org/10.1386/jdmp_00031_1","url":null,"abstract":"This study aims to open a discussion on the changing face of cultural imperialism within the context of contemporary capitalism’s conditions and the changing habits of Turkish television viewers. Although the past two decades have witnessed a growing interest in both the changing patterns of television viewing habits and viewers’ class status, this process has focused almost exclusively on the West and specifically Euro-American metropolitan viewers’ experiences. By contrast, very few studies have directly addressed other contexts, specifically, television viewers in non-western countries. Based on cultural proximity and cultural discount theories, this study analyses the reasons and outcomes behind Turkish television viewers’ ongoing tendency towards the video-on-demand platforms, such as Netflix, HBO, Hulu, Amazon Prime Video or their domestic counterparts, like Puhu or Blu TV, under Turkey’s ongoing modernization process. The results suggest that video-on-demand platforms provide particular interest for television viewers while offering relative freedom from state-controlled public media or strictly regulated private channels. Nevertheless, these platforms have appealed to both Turkish upper-middle-class viewers and younger viewers who have the cultural background to enjoy and appreciate the content on offer. This study also indicates how access to streaming platforms in Turkey mainly relies on the class status of television viewers, and that this kind of cultural flow, to some extent, creates a digital divide in Turkey.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46765092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the late 1990s, Jordan and Morocco revised their telecommunications regulation drastically. Though these regulations were first largely inspired by the European Union policy models, each country gradually developed more autonomy, individually tailoring their regulatory frameworks overtime. The case of Universal Service Obligation (USO) policies show that while Jordan remained aligned with the European Union, Moroccan policy-makers diverged from the European Union by adopting alternative policies, inspired by the Latin American reverse-auction models. Research focusing on Euro-Mediterranean regulatory contexts commonly expect neighbouring countries to converge with EU regulatory models. Yet, borrowing on policy diffusion literature and specifically the mechanisms of learning and imitation, this article shows that policy-takers intentionally decided on the (non)adoption of USO policies. Thus, research needs to take the role of policy-takers seriously and acknowledge avenues for bidirectional convergence.
{"title":"The rise of the policy-takers: Universal service policy adoption in Jordan and Morocco","authors":"Véronique Wavre","doi":"10.1386/jdmp_00030_1","DOIUrl":"https://doi.org/10.1386/jdmp_00030_1","url":null,"abstract":"In the late 1990s, Jordan and Morocco revised their telecommunications regulation drastically. Though these regulations were first largely inspired by the European Union policy models, each country gradually developed more autonomy, individually tailoring their regulatory frameworks overtime. The case of Universal Service Obligation (USO) policies show that while Jordan remained aligned with the European Union, Moroccan policy-makers diverged from the European Union by adopting alternative policies, inspired by the Latin American reverse-auction models. Research focusing on Euro-Mediterranean regulatory contexts commonly expect neighbouring countries to converge with EU regulatory models. Yet, borrowing on policy diffusion literature and specifically the mechanisms of learning and imitation, this article shows that policy-takers intentionally decided on the (non)adoption of USO policies. Thus, research needs to take the role of policy-takers seriously and acknowledge avenues for bidirectional convergence.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47497677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In an internet-connected era, prominence and discoverability propose new challenges for content providers, as search and discovery functions become essential to access content online. However, general definitional confusion on these notions has contributed to a lack of understanding of what discoverability means for the online audio-visual media industry, which in turn leads to a lack of clarity over the scope, values and intentions of related regulatory proposals. This article criticizes these policy approaches and proposes a fine-tuned understanding of content discoverability that is suited to our contemporary media system and informs media and communication policy debates in this area. By contextualizing it in an industry-led governance system with opaque content-curation strategies, I apply a new analytical lens to discoverability that shows its implications for three media policy issues: namely organizations’ decisional transparency, users’ diversity of exposure and the fostering of a plurality of media independent from undue power and influence.
{"title":"Online content governance: Towards a framework for analysis for prominence and discoverability","authors":"E. Mazzoli","doi":"10.1386/jdmp_00027_1","DOIUrl":"https://doi.org/10.1386/jdmp_00027_1","url":null,"abstract":"In an internet-connected era, prominence and discoverability propose new challenges for content providers, as search and discovery functions become essential to access content online. However, general definitional confusion on these notions has contributed to a lack of understanding\u0000 of what discoverability means for the online audio-visual media industry, which in turn leads to a lack of clarity over the scope, values and intentions of related regulatory proposals. This article criticizes these policy approaches and proposes a fine-tuned understanding of content discoverability\u0000 that is suited to our contemporary media system and informs media and communication policy debates in this area. By contextualizing it in an industry-led governance system with opaque content-curation strategies, I apply a new analytical lens to discoverability that shows its implications\u0000 for three media policy issues: namely organizations’ decisional transparency, users’ diversity of exposure and the fostering of a plurality of media independent from undue power and influence.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42643163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Review of: Locked Out: Regional Restrictions in Digital Entertainment Culture, Evan Elkins (2019)New York: New York University Press, 221 pp.,ISBN 978-1-47987-387-6, p/bk, US$29.00
{"title":"Locked Out: Regional Restrictions in Digital Entertainment Culture, Evan Elkins (2019)","authors":"Adam Turner","doi":"10.1386/jdmp_00031_5","DOIUrl":"https://doi.org/10.1386/jdmp_00031_5","url":null,"abstract":"Review of: Locked Out: Regional Restrictions in Digital Entertainment Culture, Evan Elkins (2019)New York: New York University Press, 221 pp.,ISBN 978-1-47987-387-6, p/bk, US$29.00","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49645949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The concept of media welfare state is a combination of the democratic corporatist media system and social democratic welfare state model, describing the distinctiveness of the Nordic countries and their media systems with four basic principles. Media welfare state is based on communication services understood as public goods, freedom from editorial interference, cultural policy and economic support for media pluralism as well as preference for consensual solutions involving cooperation between main stakeholders. However, identifying a joint media welfare state model in recent media and communication policy decisions made in Nordic countries on developing communication infrastructures, media delivery and universal access turns out to be difficult. During the last three decades, none of the four largest Nordic countries has strictly followed all the four principles. In most cases, Finland has ended up with different solutions than its Nordic neighbours and sometimes also in contradiction with the Media Welfare State model. There is evidence that the Nordic media markets have been losing their distinguishability over the years. But the main reason why the present-day Nordic countries do not fit into media welfare state model is that they no longer are welfare states ‐ not at least in the same fashion as they used to be. In Finland, this transition from the welfare state to the competition state has been more rapid and extensive than elsewhere in the Nordic region, partly because of its geopolitical position. The Finnish economy has also been exceptionally dependent on a single mobile technology corporation.
{"title":"Finland: Media welfare state in the digital era?","authors":"M. Ala-Fossi","doi":"10.1386/jdmp_00020_1","DOIUrl":"https://doi.org/10.1386/jdmp_00020_1","url":null,"abstract":"The concept of media welfare state is a combination of the democratic corporatist media system and social democratic welfare state model, describing the distinctiveness of the Nordic countries and their media systems with four basic principles. Media welfare state is based on communication\u0000 services understood as public goods, freedom from editorial interference, cultural policy and economic support for media pluralism as well as preference for consensual solutions involving cooperation between main stakeholders. However, identifying a joint media welfare state model in recent\u0000 media and communication policy decisions made in Nordic countries on developing communication infrastructures, media delivery and universal access turns out to be difficult. During the last three decades, none of the four largest Nordic countries has strictly followed all the four principles.\u0000 In most cases, Finland has ended up with different solutions than its Nordic neighbours and sometimes also in contradiction with the Media Welfare State model. There is evidence that the Nordic media markets have been losing their distinguishability over the years. But the main reason why\u0000 the present-day Nordic countries do not fit into media welfare state model is that they no longer are welfare states ‐ not at least in the same fashion as they used to be. In Finland, this transition from the welfare state to the competition state has been more rapid and extensive than\u0000 elsewhere in the Nordic region, partly because of its geopolitical position. The Finnish economy has also been exceptionally dependent on a single mobile technology corporation.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48948639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A complete simulcast on digital TV (DTV) can be complex to implement in some scenarios, such as when the network bandwidth has many limitations. A common solution in such scenarios is to limit the number of duplicate programmes in the simulcast to a minimum. However, this practice slows down the migration to a new generation. This article analyses the causes of this delay and proposes a technique to improve the efficiency of the simulcast. Focusing on the migration from MPEG-2 SD to H.264 HD broadcasts in DVB-T networks, the article presents an efficient solution that can accelerate the transition period.
{"title":"Aggressive joint compression for DTV simulcast","authors":"Daniel Soto","doi":"10.1386/jdmp_00021_1","DOIUrl":"https://doi.org/10.1386/jdmp_00021_1","url":null,"abstract":"A complete simulcast on digital TV (DTV) can be complex to implement in some scenarios, such as when the network bandwidth has many limitations. A common solution in such scenarios is to limit the number of duplicate programmes in the simulcast to a minimum. However, this practice slows\u0000 down the migration to a new generation. This article analyses the causes of this delay and proposes a technique to improve the efficiency of the simulcast. Focusing on the migration from MPEG-2 SD to H.264 HD broadcasts in DVB-T networks, the article presents an efficient solution that can\u0000 accelerate the transition period.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48642390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial","authors":"Petros Iosifidis","doi":"10.1386/jdmp_00019_2","DOIUrl":"https://doi.org/10.1386/jdmp_00019_2","url":null,"abstract":"","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43106067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cybercrime is a growing threat for firms and customers that emerged with the digitization of business. However, research shows that even though people claim that they are concerned about their privacy online, they do not act correspondingly. This study investigates how prevalent security issues are during a cyber attack among Twitter users. The case under examination is the security breach at the US ticket sales company, Ticketfly, that compromised the information of 26 million users. Tweets related to cybersecurity are detected through the application of automated text classification based on supervised machine learning with support vector machines. Subsequently, the users that wrote security-related tweets are grouped into communities through a social network analysis. The results of this multi-method study show that users concerned about security issues are mostly part of expert communities with already superior knowledge about cybersecurity.
{"title":"How users tweet about a cyber attack: An explorative study using machine learning and social network analysis","authors":"Daniel Vogler, F. Meissner","doi":"10.1386/jdmp_00016_1","DOIUrl":"https://doi.org/10.1386/jdmp_00016_1","url":null,"abstract":"Cybercrime is a growing threat for firms and customers that emerged with the digitization of business. However, research shows that even though people claim that they are concerned about their privacy online, they do not act correspondingly. This study investigates how prevalent security\u0000 issues are during a cyber attack among Twitter users. The case under examination is the security breach at the US ticket sales company, Ticketfly, that compromised the information of 26 million users. Tweets related to cybersecurity are detected through the application of automated text classification\u0000 based on supervised machine learning with support vector machines. Subsequently, the users that wrote security-related tweets are grouped into communities through a social network analysis. The results of this multi-method study show that users concerned about security issues are mostly part\u0000 of expert communities with already superior knowledge about cybersecurity.","PeriodicalId":40702,"journal":{"name":"Journal of Digital Media & Policy","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45632198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：