Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.11947
J. Sewell, Andrew Johnston
This article examines the Dobsonian Telescope as an object of material culture, showing how starting with the materiality of a scientific instrument opens up new perspectives that are lost by focusing purely on its instrumentality. It argues that the simple design and homely materials of the Dobsonian telescope, as well as the gestures that it requires from its users, are at the core of its significance to the popularization of amateur astronomy and amateur telescope making.
{"title":"Material Culture and the Dobsonian Telescope","authors":"J. Sewell, Andrew Johnston","doi":"10.4245/SPONGE.V4I1.11947","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.11947","url":null,"abstract":"This article examines the Dobsonian Telescope as an object of material culture, showing how starting with the materiality of a scientific instrument opens up new perspectives that are lost by focusing purely on its instrumentality. It argues that the simple design and homely materials of the Dobsonian telescope, as well as the gestures that it requires from its users, are at the core of its significance to the popularization of amateur astronomy and amateur telescope making.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"50 1","pages":"155-162"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70955968","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.11892
T. Levere
Those with knowledge about scientific instruments come from many different fields. Prominent among them are (1) collectors and dealers, (2) curators, (3) historians, (4) instrument makers, (5) philosophers, and (6) scientists (the order is alphabetical, not value-laden). The annual symposium of the Scientific Instrument Commission often brings members of each of these groups together, and they learn from one another. What follows are brief reflections on the activities of each group when its members consider instruments.
{"title":"Apparatus and Experimentation Revisited","authors":"T. Levere","doi":"10.4245/SPONGE.V4I1.11892","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.11892","url":null,"abstract":"Those with knowledge about scientific instruments come from many different fields. Prominent among them are (1) collectors and dealers, (2) curators, (3) historians, (4) instrument makers, (5) philosophers, and (6) scientists (the order is alphabetical, not value-laden). The annual symposium of the Scientific Instrument Commission often brings members of each of these groups together, and they learn from one another. What follows are brief reflections on the activities of each group when its members consider instruments.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"148-154"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70955254","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.11942
D. S. Olsen
In his article on radical innovation, Shinn (2005) examined the role of scientific instruments in innovation. This paper continues to investigate this theme, but the main focus is on how scientists or engineers from one discipline may learn from another and produce new knowledge and new technology. The paper looks at the role that tools and instruments developed by one discipline, in one environment, can play in the development of knowledge in a new environment. The theoretical basis for this study is Vygotsky’s (1978) concept of tool-mediated activity. The proposed conceptualisation views instruments as dynamic and suggests types of tool-mediated activities which may contribute to knowledge creation. The collaborative process of experimentation is examined and opportunities for knowledge creation are discussed in relation to the instruments used. Methods used are interviews and observations. The case study is a small multidisciplinary laboratory developing a new process for producing nanoreactors, with potential applications in pharmaceuticals and energy.
{"title":"“Old” Technology in New Hands: Instruments as Mediators of Interdisciplinary Learning in Microfluidics","authors":"D. S. Olsen","doi":"10.4245/SPONGE.V4I1.11942","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.11942","url":null,"abstract":"In his article on radical innovation, Shinn (2005) examined the role of scientific instruments in innovation. This paper continues to investigate this theme, but the main focus is on how scientists or engineers from one discipline may learn from another and produce new knowledge and new technology. The paper looks at the role that tools and instruments developed by one discipline, in one environment, can play in the development of knowledge in a new environment. The theoretical basis for this study is Vygotsky’s (1978) concept of tool-mediated activity. The proposed conceptualisation views instruments as dynamic and suggests types of tool-mediated activities which may contribute to knowledge creation. The collaborative process of experimentation is examined and opportunities for knowledge creation are discussed in relation to the instruments used. Methods used are interviews and observations. The case study is a small multidisciplinary laboratory developing a new process for producing nanoreactors, with potential applications in pharmaceuticals and energy.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"231-254"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70955738","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.13861
J. Virdi
Describing how the study of artifacts is greatly enhanced by an understanding of the history of museums, Ken Arnold remarks that there is “an implicit faith in the power of objects to tell, or at least ask, historians things that the written word alone cannot” (1999, p. 145). Rather than remaining mute objects or passive accessories to textual descriptions, artifacts (and the museums that house them) are tangible incarnations of the culture from which they emerged, providing unique information on the attitudes and behaviors of the past. In practice, studying and learning from artifacts can sometimes pose methodological problems, as a text-oriented historian may have no idea of how to “read” an object in order to reveal its secrets of the past. Historians and philosophers are trained almost exclusively to work with written and oral documents, limiting their analysis by neglecting such a valuable group of sources. However, as outlined in a special issue of Studies in the History and Philosophy of Science (2007, vol. 38, no. 2), it is apparent that a new historiographical tide has swept over scholars, encouraging new studies and methodologies for working with artifacts, objects, and images.
{"title":"Learning From Artifacts: A Review of the “Reading Artifacts: Summer Institute in the Material Culture of Science,” Presented by The Canada Science and Technology Museum and Situating Science Cluster","authors":"J. Virdi","doi":"10.4245/SPONGE.V4I1.13861","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.13861","url":null,"abstract":"Describing how the study of artifacts is greatly enhanced by an understanding of the history of museums, Ken Arnold remarks that there is “an implicit faith in the power of objects to tell, or at least ask, historians things that the written word alone cannot” (1999, p. 145). Rather than remaining mute objects or passive accessories to textual descriptions, artifacts (and the museums that house them) are tangible incarnations of the culture from which they emerged, providing unique information on the attitudes and behaviors of the past. In practice, studying and learning from artifacts can sometimes pose methodological problems, as a text-oriented historian may have no idea of how to “read” an object in order to reveal its secrets of the past. Historians and philosophers are trained almost exclusively to work with written and oral documents, limiting their analysis by neglecting such a valuable group of sources. However, as outlined in a special issue of Studies in the History and Philosophy of Science (2007, vol. 38, no. 2), it is apparent that a new historiographical tide has swept over scholars, encouraging new studies and methodologies for working with artifacts, objects, and images.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"276-279"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70956358","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.13757
Bruce J. Petrie
New branches of social science primarily engaging the “internet revolution” are appearing alongside mainstream research and journals such as Cyberpsychology, Behavior, and Social Networking are providing social scientists with an outlet of peer-reviewed research. HPS scholars will find new methodologies and the relation of technology to social science of particularly interest. Social scientists are becoming increasingly interested in virtual realities (see Milburn (Spontaneous Generations 2008, 63)) and are declaring time spent “in-game” ethnographic research. William Sims Bainbridge boasts 2300+ hours (approximately 96 days) of ethnographic research into a virtual world he calls “The Warcraft Civilization.” Blizzard Entertainment reported in a December 2008 press release that World of Warcraft (WoW), its extraordinarily successful 2004 massively multiplayer online role-playing game (MMORPG) comprised 11.5 million subscribers worldwide . In order to accommodate player demand, Blizzard uses hundreds of servers, artfully called realms, each running an instance of WoW for subscribers to play on. There are four types of realms: normal or player-versus-environment (PvE) realms, player-versus-player (PvP) realms, role-playing (RP) realms, and role-playing player-versus-player (RP-PvP) realms. The most popular realms are PvE and PvP; players on RP and RP-PvP realms are meant to “live” in WoW and therefore must adhere to role-playing policies such as remaining “in-character” of the avatar they have selected.
{"title":"William Sims Bainbridge. The Warcraft Civilization: Social Science in a Virtual World","authors":"Bruce J. Petrie","doi":"10.4245/SPONGE.V4I1.13757","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.13757","url":null,"abstract":"New branches of social science primarily engaging the “internet revolution” are appearing alongside mainstream research and journals such as Cyberpsychology, Behavior, and Social Networking are providing social scientists with an outlet of peer-reviewed research. HPS scholars will find new methodologies and the relation of technology to social science of particularly interest. Social scientists are becoming increasingly interested in virtual realities (see Milburn (Spontaneous Generations 2008, 63)) and are declaring time spent “in-game” ethnographic research. William Sims Bainbridge boasts 2300+ hours (approximately 96 days) of ethnographic research into a virtual world he calls “The Warcraft Civilization.” Blizzard Entertainment reported in a December 2008 press release that World of Warcraft (WoW), its extraordinarily successful 2004 massively multiplayer online role-playing game (MMORPG) comprised 11.5 million subscribers worldwide . In order to accommodate player demand, Blizzard uses hundreds of servers, artfully called realms, each running an instance of WoW for subscribers to play on. There are four types of realms: normal or player-versus-environment (PvE) realms, player-versus-player (PvP) realms, role-playing (RP) realms, and role-playing player-versus-player (RP-PvP) realms. The most popular realms are PvE and PvP; players on RP and RP-PvP realms are meant to “live” in WoW and therefore must adhere to role-playing policies such as remaining “in-character” of the avatar they have selected.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"270-272"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70956462","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.14192
Julia Agapitos
Gaia in Turmoil is the latest collaborative work put forth by the interdisciplinary group of Gaian thinkers. The contributors set out to meaningfully grapple with the bewildering ecological and social crises that humanity faces in this young century. Their work clearly rests on the assumption that such crises not only exist, but are dire—a conviction that unifies the essays in Gaia in Turmoil. By demonstrating how Gaia theory can advance various research projects, Gaia in Turmoil is an alarmist plea to integrate the Gaian perspective into mainstream thought as the next watershed paradigm through which humanity can survive and prosper.
{"title":"Eileen Crist and H. Bruce Rinker, eds. Gaia in Turmoil: Climate Change, Biodepletion and Earth Ethics in an Age of Crisis","authors":"Julia Agapitos","doi":"10.4245/SPONGE.V4I1.14192","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.14192","url":null,"abstract":"Gaia in Turmoil is the latest collaborative work put forth by the interdisciplinary group of Gaian thinkers. The contributors set out to meaningfully grapple with the bewildering ecological and social crises that humanity faces in this young century. Their work clearly rests on the assumption that such crises not only exist, but are dire—a conviction that unifies the essays in Gaia in Turmoil. By demonstrating how Gaia theory can advance various research projects, Gaia in Turmoil is an alarmist plea to integrate the Gaian perspective into mainstream thought as the next watershed paradigm through which humanity can survive and prosper.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"286-288"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70956491","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.11331
J. Hull
In important respects measurement practices underlay both the Second Scientific Revolution and the Second Industrial Revolution. Such practices, using increasingly accurate and precise instruments, both turned laboratories into factories for the production of exact measurement and also made factories the sites of laboratory-type and laboratory-quality measurement. Those who had learnt the protocols of precise, instrumentational measurement in university science and engineering classrooms, used those instruments and their skills to monitor and control industrial production, exchange technical data within and among firms and formulate and implement technical standardization in industry. That these instruments measured not natural phenomena but technological ones made them no different in kind from what are more conventionally regarded as scientific instruments. Some indeed were simply instruments developed for scientific investigation and adapted for industrial use while others were created specifically for particular industrial applications. But more than the purely technical was going on in the use of those instruments. In addition to their function of producing knowledge they were also, in industrial production, instruments of hegemony – hegemony which, as Gramsci reminds us, begins in the factory. Among the lesser known of these devices is the freeness tester, used in production to control the manufacture of pulp and also in industrial research laboratories for the investigation of the pulping process. The Canadian Standard Freeness Tester (CSFT), developed at a Canadian government research facility on the campus of McGill University in the 1920s, quickly became a standard instrument in the pulp mills of North America and gained wide acceptance in other countries; it remains in use to this day. An understanding of its creation and function can provide a useful case study of the general observations discussed above.
{"title":"Let Freeness Ring: The Canadian Standard Freeness Tester as Hegemonic Engine","authors":"J. Hull","doi":"10.4245/SPONGE.V4I1.11331","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.11331","url":null,"abstract":"In important respects measurement practices underlay both the Second Scientific Revolution and the Second Industrial Revolution. Such practices, using increasingly accurate and precise instruments, both turned laboratories into factories for the production of exact measurement and also made factories the sites of laboratory-type and laboratory-quality measurement. Those who had learnt the protocols of precise, instrumentational measurement in university science and engineering classrooms, used those instruments and their skills to monitor and control industrial production, exchange technical data within and among firms and formulate and implement technical standardization in industry. That these instruments measured not natural phenomena but technological ones made them no different in kind from what are more conventionally regarded as scientific instruments. Some indeed were simply instruments developed for scientific investigation and adapted for industrial use while others were created specifically for particular industrial applications. But more than the purely technical was going on in the use of those instruments. In addition to their function of producing knowledge they were also, in industrial production, instruments of hegemony – hegemony which, as Gramsci reminds us, begins in the factory. Among the lesser known of these devices is the freeness tester, used in production to control the manufacture of pulp and also in industrial research laboratories for the investigation of the pulping process. The Canadian Standard Freeness Tester (CSFT), developed at a Canadian government research facility on the campus of McGill University in the 1920s, quickly became a standard instrument in the pulp mills of North America and gained wide acceptance in other countries; it remains in use to this day. An understanding of its creation and function can provide a useful case study of the general observations discussed above.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"61-70"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70955175","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.11333
A. Franklin
How can one determine if an experimental apparatus is giving an incorrect result, if it is speaking falsely? An interesting example of this occurred in the experimental investigation, in the early twentieth century, of the energy spectrum of electrons emitted in β decay. Meitner and her collaborators (1911), using photographic detection, found that all the electrons emitted by a single radioactive element were monoenergetic. Chadwick (1914), on the other hand, using either an ionization chamber or a Geiger counter, found a continuous energy spectrum. Meitner et al. proposed various mechanisms whereby initially monoenergetic electrons might lose energy. These were shown to be unsatisfactory, although the possibility of an unknown mechanism for energy loss remained. In 1927 Ellis and Wooster, using a total-absorption calorimeter, which eliminated all of these possibilities, demonstrated that the energy spectrum was indeed continuous. It had taken fifteen years to show that the photographic detection had spoken falsely.
{"title":"The Machine Speaks Falsely","authors":"A. Franklin","doi":"10.4245/SPONGE.V4I1.11333","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.11333","url":null,"abstract":"How can one determine if an experimental apparatus is giving an incorrect result, if it is speaking falsely? An interesting example of this occurred in the experimental investigation, in the early twentieth century, of the energy spectrum of electrons emitted in β decay. Meitner and her collaborators (1911), using photographic detection, found that all the electrons emitted by a single radioactive element were monoenergetic. Chadwick (1914), on the other hand, using either an ionization chamber or a Geiger counter, found a continuous energy spectrum. Meitner et al. proposed various mechanisms whereby initially monoenergetic electrons might lose energy. These were shown to be unsatisfactory, although the possibility of an unknown mechanism for energy loss remained. In 1927 Ellis and Wooster, using a total-absorption calorimeter, which eliminated all of these possibilities, demonstrated that the energy spectrum was indeed continuous. It had taken fifteen years to show that the photographic detection had spoken falsely.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"71-84"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70955232","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.14196
R. Moore
Defining sustainability is a tricky endeavor. While Adrian Parr’s Hijacking Sustainability does not contribute a clear definition of the term, it does provide a series of interesting and useful examples to illustrate some of the difficulties and inconsistencies of applying so-called sustainable ideals to a capitalist infrastructure. While the concept behind Parr’s work is intriguing, the book itself, which focuses on the nature, construction, and impact of sustainability culture, is verbose, convoluted, and difficult.
{"title":"Adrian Parr. Hijacking Sustainability","authors":"R. Moore","doi":"10.4245/SPONGE.V4I1.14196","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.14196","url":null,"abstract":"Defining sustainability is a tricky endeavor. While Adrian Parr’s Hijacking Sustainability does not contribute a clear definition of the term, it does provide a series of interesting and useful examples to illustrate some of the difficulties and inconsistencies of applying so-called sustainable ideals to a capitalist infrastructure. While the concept behind Parr’s work is intriguing, the book itself, which focuses on the nature, construction, and impact of sustainability culture, is verbose, convoluted, and difficult.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"283-285"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70956374","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}
Pub Date : 2010-08-09DOI: 10.4245/SPONGE.V4I1.13765
W. Parker
As a device used by scientists in the course of performing research, the digital computer might be considered a scientific instrument. But if so, what is it an instrument for? This paper explores a number of answers to this question, focusing on the use of computers in a simulating mode.
{"title":"An Instrument for What? Digital Computers, Simulation and Scientific Practice","authors":"W. Parker","doi":"10.4245/SPONGE.V4I1.13765","DOIUrl":"https://doi.org/10.4245/SPONGE.V4I1.13765","url":null,"abstract":"As a device used by scientists in the course of performing research, the digital computer might be considered a scientific instrument. But if so, what is it an instrument for? This paper explores a number of answers to this question, focusing on the use of computers in a simulating mode.","PeriodicalId":29732,"journal":{"name":"Spontaneous Generations-Journal for the History and Philosophy of Science","volume":"4 1","pages":"39-44"},"PeriodicalIF":0.0,"publicationDate":"2010-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70956542","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}
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