The Dynamics of Professional Identity

The aim of this article is to analyse how journalists' professional identity is related to their attitude towards PR. The focus is how—and to what extent—journalistic ideology, organizational belonging and the individual's social position influence journalists' perception that other journalists working with PR lower the trustworthiness of journalism. The analyses rest on data from the Swedish Journalist Survey 2011, which is a national representative survey of Swedish journalists. The results show that journalists in general embrace a hostile attitude towards journalists who start working as PR practitioners. However, those who have worked as a journalist for fewer years or have journalistic ideals promoting the amusement function of journalism, or have worked as a freelance, or been employed in an organization producing newsletters, as well as female journalists, weaken this posture. The article concludes with a discussion on how the results could be understood in relation to recent changes in journalism's power and prerequisites, and how a professional identity might function as a form of resistance.     

Computer literacy of Turkish preservice teachers in different teacher training programs

This paper reports on an investigation into the sophomore and senior preservice teachers’ computer literacy in different teacher training programs and to determine relationship between grades and the teacher training programs in terms of their computer literacy. The study used case study research methodology, and the sample consisted of 276 preservice teachers. The ‘Computer Literacy Scale’ comprising 24 likert-type questions was employed. The inferential statistical tests were used to analyze obtained data for comparing groups on the scores collected in multiple subtests. The results suggest that there was no difference between sophomore and senior preservice teachers’ computer literacy. For computer literacy, the order of rank is basic skills, application software skills, computer awareness and programming skills, respectively. Undergraduate programs only have developed basic skills of preservice students and have not had the impact on other skills or sophisticated computer literacy. The MANOVA inferential statistics findings proved these results. It is suggested that content of the computer literacy skills and computer course(s) should be improved and re-designed by including computer literacy skills.     

Constituting an apprenticeship curriculum

Apprenticeships are required for many trades and can take different forms. In Sweden, one form can be viewed as a pathway where students complete a three-year-long vocational education in upper secondary school followed by a post-secondary apprenticeship in a particular trade. Another takes the form of vocational training within the framework of upper secondary school through an apprenticeship. This study analyses how a more clearly defined apprenticeship curriculum can provide sufficient knowledge to identify and understand learning outcomes in apprenticeships. A theoretical framework of an apprenticeship curriculum is used in the analytical work. The findings show that educational goals are often overlooked during apprenticeships, and thus a deliberative education is overridden by deliberative learning that stems from and is closely connected to the individual’s own perception of what to learn. By constituting an apprenticeship curriculum, this article contributes to an enhanced understanding of how to analyse vocational learning, and thus adds important elements to the research field.     

Rediscovering radiology: new technologies and remedial action at the worksite

This study contributes to social studies of imaging and visualization practices within scientific and medical settings. The focus is on practices in radiology, which are bound up with visual records known as radiographs. The study addresses work following the introduction of a new imaging technology, tomosynthesis. Since it was a novel technology, there was limited knowledge of how to correctly analyse tomosynthesis images. To address this problem, a collective review session was arranged. The purpose of the present study was to uncover the practical work that took place during that session and to show how, and on what basis, new methods, interpretations and understandings were being generated. The analysis displays how the diagnostic work on patients' bodies was grounded in two sets of technologically produced renderings. This shows how expertise is not simply a matter of providing correct explanations, but also involves discovery work in which visual renderings are made transparent. Furthermore, the results point to how the disciplinary knowledge is intertwined with timely actions, which in turn, partly rely on established practices of manipulating and comparing images. The embodied and situated reasoning that enabled radiologists to discern objects in the images thus display expertise as inherently practical and domain-specific.     

Long-term microfluidic glucose and lactate monitoring in hepatic cell culture

Monitoring cellular bioenergetic pathways provides the basis for a detailed understanding of the physiological state of a cell culture. Therefore, it is widely used as a tool amongst others in the field of in vitro toxicology. The resulting metabolic information allows for performing in vitro toxicology assays for assessing drug-induced toxicity. In this study, we demonstrate the value of a microsystem for the fully automated detection of drug-induced changes in cellular viability by continuous monitoring of the metabolic activity over several days. To this end, glucose consumption and lactate secretion of a hepatic tumor cell line were continuously measured using microfluidically addressed electrochemical sensors. Adapting enzyme-based electrochemical flat-plate sensors, originally designed for human whole-blood samples, to their use with cell culture medium supersedes the common manual and laborious colorimetric assays and off-line operated external measurement systems. The cells were exposed to different concentrations of the mitochondrial inhibitor rotenone and the cellular response was analyzed by detecting changes in the rates of the glucose and lactate metabolism. Thus, the system provides real-time information on drug-induced liver injury in vitro.