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The open source software (OSS) movement thrives on innovation and volunteer effort of developers. Scholars have expressed widespread concern about the sustainability of the OSS movement due to high levels of volunteerism. In this paper, we address a central challenge to the sustainability of OSS-developers’ acceptance of monetary rewards. We strive to explain why some OSS developers accept monetary rewards and others do not. Viewed through the theoretical lens of the private-collective innovation model (0395 and 0400), this allows us to describe when developers will accept private financial rewards. Our main research objective is to clearly map the web of relationships between causal antecedents, and developers’ acceptance behavior. Using a unique dataset that combines survey and behavioral measures, we find that – (a) intention to accept monetary rewards mediates the impact of motivational elements on developers’ acceptance of monetary rewards; (b) intrinsic and extrinsic motivations positively affect their intention to accept monetary rewards, community motivation negatively impacts intention and ideological motivation does not affect the intention to accept rewards and (c) these effects are obtained even after inclusion of several control variables. The theoretical and managerial implications of our work are described.  相似文献   
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从VolP技术的流行至今,整个基于IP的商业通讯经历了巨大的变化。这篇文章着眼于运行于IP之上的各种应用技术,如移动电视、远程呈现、手机视频会议、基于IP的气味合成、Teredo隧道。 众所周知。IP技术的出现是如何改变了我们的沟通方式。在单纯的数据传输之后,也许就是VolP的天下了。时下VolP已经成为我们生活中不可缺少的一部分,甚至在我们都还没有了解它之前,这项技术就让我们如此的着迷了。而眼前最时尚的事或许就是基于IP之上的视频服务了,它如同手机视频一样,受到了广泛的关注。在这篇文章中,我们将重点关注那些建筑于IP之上的通讯热点潮流和最新的一些研发成果,向您阐释基于IP的林林总总。  相似文献   
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Electrical conductivity in biomolecules and other large polymeric systems has become an important topic of current research. Schlag et al.(2000a; 2000b) demonstrated that charge migration in proteins is highly efficient although the mechanistic origin is still debated and largely unknown even though various models have been proposed by Weinkauf et al.(1995; 1996; 1997). According to them, the charge transfer between amino acids takes place by hole hopping between local sites of lowest ionizati…  相似文献   
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Ideas leading to the resolution of the problem of no-slip condition for fluid velocity at a solid surface are traced in this concluding part of the article. In the continuum limit velocity slip being zero is established beyond any doubt now. Even turbulent flows which have a large velocity gradient near a wall have to satisfy the no-slip condition at every instant. From molecular considerations, on the other hand, we know that the velocity slip is proportional to the mean free path which may not be negligible in rarefied gas flows. Experimental verification of no-slip has been only indirect and it is only recently that slip velocity in non-wettable liquids has been measured directly.  相似文献   
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A review and analysis of the rules and regulations including the tax aspects of making an investment in India is presented. The full range from Foreign Direct Investment to different forms of doing business with specific examples from the publishing industry is explored to help understand current policies and regulations.
Sandeep ChauflaEmail: Email:
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Student feedback can be used to enable institutions to achieve the best possible outcomes for students through informing changes which enhance the quality of teaching and learning. Following the introduction of an online survey platform to gather student feedback at a top-performing UK university, anecdotal concerns raised by academics suggested students were being more critical. This exploratory study investigated the effects of switching from a paper to an online survey by comparing the open-ended responses between the two methods of collection. The main contribution of this study is the development of an analytical framework which can be used by other institutions to evaluate student comments, in order to understand and improve the student experience. Three key findings in this study were uncovered. Firstly, the quality of student feedback is not undermined by a switch to a more efficient online collection. Secondly, student comments via both methods of collection predominantly continue to focus on fulfilling basic needs, such as study resources. Finally, a small number of comments online revealed a lack of behavioural constraint and were considered to be inappropriate. These findings have important policy implications for the global higher education sector, highlighting the need for students to be given guidance on providing constructive feedback.  相似文献   
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Autonomic activity may be deranged in thyroid dysfunctions and may lead to cardiovascular morbidity and mortality. Myopathy is a common manifestation in thyroid disorders and may be associated with raised serum creatine kinase (CK). We hypothesized that cardiovascular abnormality in thyroid dysfunction may manifest as raised CK-MB. This study was designed to investigate the correlation of CK and its isoform CK-MB with thyroid profile and linear parameters of heart rate variability (HRV). The study was conducted on 35 hypothyroid and hyperthyroid patients each, and 25 age-matched healthy controls. Autonomic activity was assessed by simple short term 5-min HRV. Biochemical evaluation of serum thyroid profile, CK-NAC and CK-MB were estimated in all the subjects. Our results demonstrated low HRV in hypo- as well as hyperthyroid patients. We observed significantly higher serum CK levels in hypothyroid patients when compared to hyperthyroids and controls. However, no significant differences were observed in CK-MB levels in the three groups. Significant positive correlation of CK with TSH and negative correlation with some HRV parameters (LF power, HF power, total power, SDNN, RMSSD) was observed in hypothyroid patients. Whereas correlation of CK-MB with thyroid profile as well as HRV parameters was non-significant in all the groups. Based on the CK and CK-MB findings and their correlation, we conclude that the cardiovascular changes seen in thyroid dysfunctions may primarily be due to autonomic imbalance without apparent cardiac muscle involvement. Whereas, raised CK levels indicate predominantly skeletal muscle involvement in hypothyroid patients.  相似文献   
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