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1.
Feedback loops are instrumental in the organizational knowledge creation (OKC) process across the highly uncertain and dynamic innovation's front‐end. Therefore, managers should be aware of how these loops unfold, how to recognize meaningful patterns and how to steer them towards planned and emergent outcomes. Easy to say, difficult to practise! This empirical paper focuses on knowledge–conceptualization – the new knowledge's generation‐crystallization journey – and develops a unique model of feedback loops as dynamic processes of OKC in the context of the innovations’ front‐end. Using ten qualitatively studied innovations, the authors identify five front‐end OKC stages (generation, evaluation, expansion, refinement and crystallization) and pattern these based on their overlaps to explore the associated feedback loops. This model distinctively illustrates increasing–decreasing, diverging–converging and frequent negative‐cum‐positive loops, and illuminates the complex and rich patterns of loops not captured before.  相似文献   
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Microtubules are part of the structural network within a cell's cytoplasm, providing structural support as well as taking part in many of the cellular processes. A large body of data provide evidence that dynamics of microtubules in a cell is reponsible for the performance of many critical cellular functions such as cell division. In this article, we study the effect of four different isoforms of a protein tau on microtubule dynamics using growth curve models. The results show that a linear growth curve model is sufficient to explain the data. Moreover, we find that a mutated version of a 3-repeat tau protein has a similar effect as a 4-repeat tau protein on microtubule dynamics. The latter findings conform with the biological understanding of the effect of the protein tau on microtubule dynamics.  相似文献   
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This article traces prostitution in al-Mahalla in the first half of the 20th century as a regulated urban practice until the trade was outlawed in Egypt in 1949. Studying prostitution during this period of exceptionally rapid growth and transformation not only provides a window on a particular type of illicit sexuality and public morality in a colonial context, it also gives us a hint as to gender relations and inter-communal relations on the invisible marginalized part of a provincial local community, and how it was socially transformed. I argue that the regulation of prostitution in Egypt in 1882 and 1905 created a sphere for a power contest between the colonial state and the local community, between nationalist discourse and the local way of life, and between public morality and private space. While nationalist discourse constructed one virtuous nation, the local community accepted the licensed prostitution quarter, and resisted secret prostitution. The people of the town actively and continually shifted boundaries on what was public and what was private, what was the state's responsibility and what was communal liability.  相似文献   
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The article charts the rise of Mohajir identity politics in Pakistan since 1971. Most accounts of Mohajir identity politics have focused mainly on one actor, that is, the Mohajir (now Muttahida) Qaumi Movement and their politics and secondly, have remained silent on intra-ethnic fissures within the Mohajir community. The present article builds on and criticises such accounts for their partiality and presents a more nuanced understanding of politics within the Mohajir community. On the theoretical plane, it criticises modernist and primordialist accounts of ethnicity and nationalism, both of which portray a homogenous picture of ethnic groups as based on unity and shared aims. It is shown that unity and shared aims are at best, a chimera, and that intra-ethnic fissure is as important to understand as is inter-ethnic conflict when it comes to analysing ethnic movements.  相似文献   
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The rapid industrialization occurring in developing regions of the world brings not only economic benefits, but changes in the types and severity of health and environmental problems that each region experiences. As the industrialized world moves toward the use of risk assessment methodologies to aid in problem evaluation and regulatory and policy decision analysis, it seems inevitable that these methodologies will be applied globally. The changes brought about by rapid industrialization, however, must be viewed within the context of societies that are still struggling with the more traditional and basic environmental problems associated with urban and rural poverty. The urgency of development and the lack of adequate resources for characterizing health and environmental changes, often present under these circumstances, offer special challenges to the application of risk assessment methodologies.  相似文献   
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Social Indicators Research - Child labor is a distressing issue. There have been many attempts to estimate its magnitude. It is attempted here to develop an estimator to assess the magnitude of...  相似文献   
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Labor force and school attachment may influence alcohol, tobacco, and marijuana use in the US and Canada. Differences in social welfare provision, which provide protections for individuals with insecure attachments to the labor force or education, may in turn impact the behavior and health of youth in these countries. Yet, there is little research to understand the health consequences for youth of being out of the labor force and school (OLFS). Data of 25–29 year old participants of the National Longitudinal Survey of Youth (year 2010) and the Canadian Community Health Survey (2009–2010) were used to examine differences in substance use by labor force and school attachment. Logistic regression suggests that OLFS in the US and Canada were less likely to report alcohol uptake and more likely to use tobacco compared to employed youth. Unemployment was differentially associated with substance use behaviors by country. Country of residence and subsequent exposure to social welfare policy does not appear to impact substance use behaviors among OLFS. However, associations of unemployment and gender by country indicates differences in substance use behavior. More research should seek to understand factors that influence alcohol, tobacco, and marijuana use among OLFS and unemployed youth.  相似文献   
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