A series of tubes: The continuous manufacture of a finished drug product starting from chemical intermediates is reported. The continuous pilot‐scale plant used a novel route that incorporated many ...advantages of continuous‐flow processes to produce active pharmaceutical ingredients and the drug product in one integrated system.
More of the social world lives within electronic text than ever before, from collective activity on the web, social media, and instant messaging to online transactions, government intelligence, and ...digitized libraries. This supply of text has elicited demand for natural language processing and machine learning tools to filter, search, and translate text into valuable data. We survey some of the most exciting computational approaches to text analysis, highlighting both supervised methods that extend old theories to new data and unsupervised techniques that discover hidden regularities worth theorizing. We then review recent research that uses these tools to develop social insight by exploring (
a
) collective attention and reasoning through the content of communication; (
b
) social relationships through the process of communication; and (
c
) social states, roles, and moves identified through heterogeneous signals within communication. We highlight social questions for which these advances could offer powerful new insight.
The Geometry of Culture Kozlowski, Austin C.; Taddy, Matt; Evans, James A.
American sociological review,
10/2019, Letnik:
84, Številka:
5
Journal Article
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We argue word embedding models are a useful tool for the study of culture using a historical analysis of shared understandings of social class as an empirical case. Word embeddings represent semantic ...relations between words as relationships between vectors in a highdimensional space, specifying a relational model of meaning consistent with contemporary theories of culture. Dimensions induced by word differences (rich–poor) in these spaces correspond to dimensions of cultural meaning, and the projection of words onto these dimensions reflects widely shared associations, which we validate with surveys. Analyzing text from millions of books published over 100 years, we show that the markers of class continuously shifted amidst the economic transformations of the twentieth century, yet the basic cultural dimensions of class remained remarkably stable. The notable exception is education, which became tightly linked to affluence independent of its association with cultivated taste.
In many academic fields, the number of papers published each year has increased significantly over time. Policy measures aim to increase the quantity of scientists, research funding, and scientific ...output, which is measured by the number of papers produced. These quantitative metrics determine the career trajectories of scholars and evaluations of academic departments, institutions, and nations. Whether and how these increases in the numbers of scientists and papers translate into advances in knowledge is unclear, however. Here, we first lay out a theoretical argument for why too many papers published each year in a field can lead to stagnation rather than advance. The deluge of new papers may deprive reviewers and readers the cognitive slack required to fully recognize and understand novel ideas. Competition among many new ideas may prevent the gradual accumulation of focused attention on a promising new idea. Then, we show data supporting the predictions of this theory. When the number of papers published per year in a scientific field grows large, citations flow disproportionately to already well-cited papers; the list of most-cited papers ossifies; new papers are unlikely to ever become highly cited, and when they do, it is not through a gradual, cumulative process of attention gathering; and newly published papers become unlikely to disrupt existing work. These findings suggest that the progress of large scientific fields may be slowed, trapped in existing canon. Policy measures shifting how scientific work is produced, disseminated, consumed, and rewarded may be called for to push fields into new, more fertile areas of study.
The increasing threat of climate change has created a pressing need for cities to lower their carbon footprints. Urban laboratories are emerging in numerous cities around the world as a strategy for ...local governments to partner with public and private property owners to reduce carbon emissions, while simultaneously stimulating economic growth. In this article, we use insights from laboratory studies to analyse the notion of urban laboratories as they relate to experimental governance, the carbonization agenda and the transition to low‐carbon economies. We present a case study of the Oxford Road corridor in Manchester in the UK that is emerging as a low‐carbon urban laboratory, with important policy implications for the city's future. The corridor is a bounded space where a public‐private partnership comprised of the City Council, two universities and other large property owners is redeveloping the physical infrastructure and installing monitoring equipment to create a recursive feedback loop intended to facilitate adaptive learning. This low‐carbon urban laboratory represents a classic sustainable development formula for coupling environmental protection with economic growth, using innovation and partnership as principal drivers. However, it also has significant implications in reworking the interplay of knowledge production and local governance, while reinforcing spatial differentiation and uneven participation in urban development.
What factors affect a scientist's choice of research problem? Qualitative research in the history and sociology of science suggests that this choice is patterned by an "essential tension" between ...productive tradition and risky innovation. We examine this tension through Bourdieu's field theory of science, and we explore it empirically by analyzing millions of biomedical abstracts from MEDLINE. We represent the evolving state of chemical knowledge with networks extracted from these abstracts. We then develop a typology of research strategies on these networks. Scientists can introduce novel chemicals and chemical relationships (innovation) or delve deeper into known ones (tradition). They can consolidate knowledge clusters or bridge them. The aggregate distribution of published strategies remains remarkably stable. High-risk innovation strategies are rare and reflect a growing focus on established knowledge. An innovative publication is more likely to achieve high impact than a conservative one, but the additional reward does not compensate for the risk of failing to publish. By studying prizewinners in biomedicine and chemistry, we show that occasional gambles for extraordinary impact are a compelling explanation for observed levels of risky innovation. Our analysis of the essential tension identifies institutional forces that sustain tradition and suggests policy interventions to foster innovation.
Social Computing Unhinged Evans, James
Journal of social computing,
9/2020, Letnik:
1, Številka:
1
Journal Article
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Social computing is ubiquitous and intensifying in the 21st Century. Originally used to reference computational augmentation of social interaction through collaborative filtering, social media, ...wikis, and crowdsourcing, here I propose to expand the concept to cover the complete dynamic interface between social interaction and computation, including computationally enhanced sociality and social science, socially enhanced computing and computer science, and their increasingly complex combination for mutual enhancement. This recommends that we reimagine Computational Social Science as Social Computing, not merely using computational tools to make sense of the contemporary explosion of social data, but also recognizing societies as emergent computers of more or less collective intelligence, innovation and flourishing. It further proposes we imagine a socially inspired computer science that takes these insights into account as we build machines not merely to substitute for human cognition, but radically complement it. This leads to a vision of social computing as an extreme form of human computer interaction, whereby machines and persons recursively combine to augment one another in generating collective intelligence, enhanced knowledge, and other social goods unattainable without each other. Using the example of science and technology, I illustrate how progress in each of these areas unleash advances in the others and the beneficial relationship between the technology and science of social computing, which reveals limits of sociality and computation, and stimulates our imagination about how they can reach past those limits together.
The queries entered into search engines register hundreds of millions of different searches by tourists, not only reflecting the trends of the searchers' preferences for travel products, but also ...offering a prediction of their future travel behavior. This study used web search query volume to predict visitor numbers for a popular tourist destination in China, and compared the predictive power of the search data of two different search engines, Google and Baidu. The study verified the co-integration relationship between search engine query data and visitor volumes to Hainan Province. Compared to the corresponding auto-regression moving average (ARMA) models, both types of search engine data helped to significantly decrease forecasting errors. However, Baidu data performed better due to its larger market share in China. The study demonstrated the value of search engine data, proposed a method for selecting predictive queries, and showed the locality of the data for forecasting tourism demand.
•Web search data help to improve visitor volume forecasting model accuracy.•Co-integration relationship between search data and visitor volume is verified.•Baidu data performs better than Google for predicting tourist activities in China.•Process to select key search queries for visitor volume prediction is proposed.
Online journals promise to serve more information to more dispersed audiences and are more efficiently searched and recalled. But because they are used differently than print--scientists and scholars ...tend to search electronically and follow hyperlinks rather than browse or peruse--electronically available journals may portend an ironic change for science. Using a database of 34 million articles, their citations (1945 to 2005), and online availability (1998 to 2005), I show that as more journal issues came online, the articles referenced tended to be more recent, fewer journals and articles were cited, and more of those citations were to fewer journals and articles. The forced browsing of print archives may have stretched scientists and scholars to anchor findings deeply into past and present scholarship. Searching online is more efficient and following hyperlinks quickly puts researchers in touch with prevailing opinion, but this may accelerate consensus and narrow the range of findings and ideas built upon.
Urban living labs (ULLs) are emerging as a form of collective urban governance and experimentation to address sustainability challenges and opportunities created by urbanisation. ULLs have different ...goals, they are initiated by various actors, and they form different types of partnerships. There is no uniform ULL definition. However, many projects studying and testing living lab methodologies are focusing on urban sustainability and low carbon challenges, as demonstrated by the current projects funded by the Joint Programming Initiative (JPI) Urban Europe. At the same time, there is no clear understanding of what the ultimate role of ULLs is in urban governance, and whether they represent a completely new phenomenon that is replacing other forms of participation, collaboration, experimentation, learning and governing in cities. There is a need to clarify what makes the ULL approach attractive and novel. The aim of this article is to develop current understandings through an examination of how the ULL concept is being operationalised in contemporary urban governance for sustainability and low carbon cities. This is undertaken through the analysis of academic literature complemented with five snapshot case studies of major ongoing ULL projects funded by JPI Urban Europe. Five key ULL characteristics are identified and elaborated: geographical embeddedness, experimentation and learning, participation and user involvement, leadership and ownership, and evaluation and refinement. The paper concludes by outlining a research agenda that highlights four key topics: ways in which the ULL approach is operationalised, the nature of ULL partnerships and the role of research institutions, the types of challenges addressed by different ULLs, and the role of sustainability and low carbon issues in framing ULLs.
•European cities face many sustainability challenges and opportunities.•Urban living labs (ULLs) are a form of collective urban governance to produce innovative solutions.•There is a need to clarify what makes the ULL approach attractive and novel and outline a research agenda.•We show how the ULL concept is operationalised in contemporary urban governance for sustainability and low carbon cities.•We analyse 5 ULL projects and 22 ULL examples to identify and systematise key ULL characteristics.
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