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This paper aims to establish a photoacoustic detection system for SO2 using UV-LED and testify its feasibility for sensitive measurement. The work in this paper can avoid…
This paper aims to establish a photoacoustic detection system for SO2 using UV-LED and testify its feasibility for sensitive measurement. The work in this paper can avoid potential crossover interference in infrared (IR) range and also balance the capability and cost of feasible excitation for photoacoustic detection system.
In this experimental work, a cantilever-enhanced–based photoacoustic SO2 detection system using an ultraviolet (UV) LED light source with a light power of 4 mW as the excitation was established.
A feasible photoacoustic detection system for SO2 using UV-LED was established. Experimental results demonstrate that the detection limit of the system can reach the level of 0.667 ppm, which can serve as a reference for the application of PAS in insulation fault diagnosis.
This work investigated the potential of using ultraviolet photoacoustic spectroscopy to detect trace SO2, which provided an ideal replacement of infrared-laser-based detection system. In this paper, a photoacoustic detection system using LED with a low light power was established. Low light power requirement can expand the options of light sources accordingly. In this paper, the absorption characteristics of SO2 in the presented detection system and ultraviolet range were studied. And the detection limit of the presented system was given. Both of which can provide reference to SO2 detection in ambient SF6.
This research contributes to understanding emotional and political challenges experienced by middle managers as they work with contradictions inherent in leading change…
This research contributes to understanding emotional and political challenges experienced by middle managers as they work with contradictions inherent in leading change from the middle. Focus group data from 27 such middle managers based in the UK indicate that, once they have been assigned roles and tasks for leading change, underlying dynamics and processes influence the degree to which they become capable (or unable) to shape and navigate that change. A proposed conceptual framework, illustrated by a case vignette, provides a base of existing knowledge for understanding and explaining these dynamics. We also construct a model of the key tensions that are integral to middle managers leading change. A further contribution to practice involves elaborating the importance of collaborative effort across hierarchical and vertical boundaries, despite emotional and political tensions that undermine middle managers’ roles as change agents.
This chapter expands the limited work on leadership in the digital age and considers how the relative inclusivity of organizational identity as well as its corresponding…
This chapter expands the limited work on leadership in the digital age and considers how the relative inclusivity of organizational identity as well as its corresponding organizational scripts affects who performs “leading tasks,” formal leaders or committed supporters, in two social movement groups. Drawing on a random sample of 5% of Facebook posts from committed supporters and 1% of Facebook posts from group administrators associated with March Against Monsanto (MAM) and Occupy Monsanto (OM), two groups that have shared general goals but different organizational identities, we find that the clarity of an organization’s script shapes who performs leading tasks and how they perform them. MAM, which has an exclusive organizational identity and relatively defined script, encouraged supporters to engage with one another directly and perform a broad range of leading tasks even as it reinforced the group’s hierarchy. OM, which has an inclusive organization identity and relatively undefined script, had less supporter engagement. Absent scripts regarding the rules of participation, OM’s committed supporter primarily shared information with other site users, but rarely engaged them directly. We conclude with a discussion of our results and outline additional avenues for analyzing leadership in the digital age.
This chapter examines the effect of creditors’ monitoring role on the profitability of firm acquisitions. We use the shares retained by the lead arranger of a syndicated…
This chapter examines the effect of creditors’ monitoring role on the profitability of firm acquisitions. We use the shares retained by the lead arranger of a syndicated loan as a proxy for monitoring level. We find that acquirer announcement returns are positively related to the shares retained by the lead arranger. The effect of the lead arranger’s shares on the acquirer’s return becomes pronounced in cash acquisition deals, and when there exist financial covenants. Our results suggest that lead arrangers are important not only for monitoring loans but also for successful acquisitions by borrowers. An important policy implication of the main findings of this chapter on bank monitoring is that policy makers should design financial covenants to improve the efficiency of monitoring activities by lead arranging banks in syndicated bank loan deals.
In this study, we seek to broaden the research focus in the strategic alliance literature from a firm's “partner strategy” to its “network strategy” by linking a firm's…
In this study, we seek to broaden the research focus in the strategic alliance literature from a firm's “partner strategy” to its “network strategy” by linking a firm's partnering choices to changes in its network position over time. Using data on all underwriting syndicates in Canada over nearly 40 years, we conceptualize and model the interplay between an investment bank's own and its partners’ syndicate participation. Our findings indicate that the lead banks, which have greater discretion in choosing syndicate partners than co-lead banks, are more likely to make partner selections that create bridging positions that provide access to timely and non-redundant information as well as opportunities to play a broker role across unconnected others. We also find, however, that lead banks’ bridging positions deteriorate when they form ties with other lead banks. Network-based competitive advantages are thus influenced by network opportunities and constraints as well as partner-specific concerns, suggesting that new insights into the dynamics of interfirm networks and competitive advantage of firms are possible within this broader view.
Since the beginning of the 20th century environmental health researchers have known about the association between toxicant exposure and disease. However, that knoweldge…
Since the beginning of the 20th century environmental health researchers have known about the association between toxicant exposure and disease. However, that knoweldge has not been well integrated into mainstream medicine. Shedding light on why is the focus of this chapter.
To shed light on this issue I analyze the 2011 American Academy of Pediatrics’ clinical practice guidelines for Attention Deficit/Hyperactivity Disorder (ADHD), focusing specifically on the omission of environmental health research pertaining to ADHD symptoms and exposures, such as lead and mercury.
I found that while environmental researchers have been documenting the link between lead and ADHD for over forty years, the American Academy of Pediatrics has completely omitted this research from its 2012 clinical practice guidelines. Moreover, I argue this omission can be traced to competitive pressures to protect medical jurisdiction, and a reductionist worldview that emphasizes treatment over prevention.
Originality/value of paper
This is the first attempt to analyze the way clinical practice guidelines help reinforce and perpetuate dominant medical perspectives. Moreover, to shed explanatory light, this chapter offers a synthetic explanation that combines materialist and ideological factors.
Beyond the specific case of ADHD, this chapter has implications for understanding how and why environmental health research is omitted from other materials produced by mainstream medicine, such as materials found in the medical school curriculum, continuing medical education, medical journals, and on the medical association web sites.
We develop a concept of the global factory, first introduced by Buckley and colleagues (2004, 2009, 2010, 2011, 2014), as a stand-alone construct associated with…
We develop a concept of the global factory, first introduced by Buckley and colleagues (2004, 2009, 2010, 2011, 2014), as a stand-alone construct associated with significant predictive capacity, discuss dynamics of success of the global factory, and identify and analyze social mechanisms deployed by the lead firm head office.
We conceptualize the global factory as a form of a flagship network and augment internalization theory with insights from interorganizational networks research to explore the dynamics of the global factory’s origination and functioning.
We clarify under what conditions a global factory-type network is more likely to emerge and describe social mechanisms generated by the lead firm head office to help the global factory sustain itself and thrive. We argue that in order to benefit from potential efficiencies of the global factory, the lead firm head office must deploy combinations of social mechanisms. We further argue that the role of the lead firm head office is that of a joint value orchestrator and a social broker, in addition to the controlling intelligence function.
Future work on the global factory should include further conceptualization of social mechanisms deployed by the lead firm, exploration of operating mode heterogeneity within the global factory, and large-scale empirical research.
Lead firm managers should embrace the role of the joint value orchestrators and implement social mechanisms described in this chapter to facilitate smooth operation of the global factory.
Global factory governance further increases multinationals’ geographic reach and market power; yet, it is not a universal recipe for market success, and therefore global factories’ power to shape the global economy should not be overestimated.
By linking the global factory to networks literature, we have suggested a novel way to view the concept and articulated more fully its underlying assumptions. Further research on the global factory will help advance our understanding of the dynamics of the global economy and the role of multinationals, their head offices, and their managers in shaping the economy.
The purpose of this chapter is to enable interviewers to understand how they can elicit interviewee-generated data that are not ‘muddied’ by the researcher. The chapter…
The purpose of this chapter is to enable interviewers to understand how they can elicit interviewee-generated data that are not ‘muddied’ by the researcher. The chapter has three main components. First, we discuss the authorship of data and illustrate how questions may unwittingly affect this authorship. Second, we outline the problem with ‘leading’ questions and introduce three features of leading questions that are relevant to researchers from different research epistemologies. Third, we introduce the ‘cleanness rating’, which is a way to categorise how questions are used in an interview according to the extent to which they are leading or ‘clean’. We conclude with the difference this can make for researchers, including enhancing the capacity for interviewers to reflect on their practice and making their role in the generation of interview data more transparent.