Herceptin functionalized microfluidic polydimethylsiloxane devices for the capture of human epidermal growth factor receptor 2 positive circulating breast cancer cells

Building on recent breakthroughs in the field of microfluidic-based capture of rare cancer cells circulating in the blood, the present article reports on the use of Herceptin functionalized PDMS devices designed to efficiently capture from blood cancer cells, overexpressing the tyrosine kinase human epidermal growth factor receptor (HER2). The identification of patients overexpressing HER2 is critical as it typically associates with an aggressive disease course in breast cancer and poor prognosis. Importantly, HER2 positive patients have been found to significantly benefit from Herceptin (Trastuzumab), a humanized monoclonal antibody (MAb) against HER2. Disposable PDMS devices prepared using standard soft lithography were functionalized by the plasma polymerization of an epoxy-containing monomer. The epoxy-rich thin film (AGEpp) thus created could be conjugated with Herceptin either directly or through a polyethylene glycol interlayer. The properties and reactivity toward the monoclonal antibody conjugation of these coatings were determined using x-ray photoelectron spectroscopy; direct conjugation provided a good compromise in reactivity and resistance to biologically nonspecific fouling and was selected. Using the breast cancer cell line SK-BR-3 as a model for cells overexpressing HER2, the immunocapture efficacy of the Herceptin functionalized PDMS was demonstrated in model studies. Validation studies confirmed the ability of the device to efficiently capture (～80% capture yield) HER2 positive cells from full blood.     

Utilization of CSR to build organizations’ corporate image in Asia: need for an integrative approach

Corporate social responsibility (CSR) has been found to be a strong predictor of a favorable corporate image [Gray, 1986. Managing the corporate image: The key to public trust. London: Quorum Books]. Websites have become an essential communication platform [Dawkins, 2004. Corporate responsibility: The communication challenge. Journal of Communication Management, 9(2), 108–119]. This study aims to investigate how CSR can be used in enhancing organizational corporate image. Content analyses of 150 corporate websites of organizations in Asia headquartered in Singapore were conducted, followed by in-depth interviews with public relations (PR) practitioners to examine the motivations behind their CSR engagement. Findings showed that organizations utilized CSR as a means to enhance corporate image via four ways: Engaging in two-way conversations with stakeholders, adopting an inside-out communication approach with employees, recognizing the relevance of other CSR communication channels, and communicating CSR with authenticity. However, some organizations hesitate to use CSR communication to enhance their corporate image because they wanted to avoid being seen as using CSR as a promotional tool.     

Is saying ‘sorry’ enough? examining the effects of apology typologies by organizations on consumer responses

Apology has been found to be the most effective strategy in times of crises. However, there is a dearth of research on the kinds of apology used and how primary stakeholders, in particular consumers, received them. This study aims to examine consumer responses to the types of apologies offered post crises against the levels of attribution of responsibility. We also assess the potential mediating role of ethical concerns by developing the Perception-Behavioral Model of Crisis Response. An experiment was conducted to ascertain consumers’ impression of the organization post-apology. The results showed that the attribution of crisis responsibility significantly influences complaining, withholding and negative word-of-mouth behaviors. However, a very high degree of apology issued by the organization does not necessarily translate to reduced negative responses from consumers in light of the large attribution of responsibility. Finally, the Perception-Behavioral Model of Crisis Response suggests that ethical concerns can mediate negative behavioral intentions from consumers.     

“Insourcing” of Cataloging in a Consortial Environment: The UC Santa Barbara–UC San Diego Music Copy Cataloging Project

A collaborative cataloging project for music sound recordings between two University of California campuses matches available staffing at UC San Diego with the need for better access to a high-priority collection of audio CDs at UC Santa Barbara, with promising results. This article discusses the decision to collaborate, the project planning process, cataloging standards and workflow issues, network level cataloging within an international database (OCLC), communication between personnel on the two campuses, managing cataloging review, an assessment of the project's achievements to date, and implications and future directions for similar cooperative projects.     

Fragments of your communication: Email,vmail, and fax

Abstract

How are new media, such as electronic mail, voice mail, and fax, used when people have access to several of them simultaneously? This paper reports findings from a field study of media use in four sizable subunits within two large organizations where most employees had access to email, vmail, and fax. Respondents tended to use multiple electronic media rather than relying on one. However, they also showed a tendency to prefer one medium for asynchronous communication and to use the others for occasional, specialized purposes. Further, there were considerable differences across subunits in typical media use patterns. Although respondents expressed strong desires for multimedia integration, this study suggests that technological integration may not necessarily result in seamless, collaborative work.     

Letter from Rob Kling-Editor-in-Chief

Abstract

Individuals who have ready access to three new communication media— email, vmail, and fax—may elect to use only one medium, or two or more in combination. Users make choices based on evaluations of the utility of each medium for their communication tasks (a function of the types of work they perform). Individuals may assess technological characteristics to evaluate the technological utility of each medium. However, since communication media require multiple users, individuals also may be expected to assess characteristics of the user community to evaluate the social utility of each medium. Social utility may be influenced by people's perceptions of the existence of a critical mass of media users, and by the social influence of their peers and superiors. This study finds that perceptions of the technological and social utility of email, vmail, and fax are relatively independent of the types of work people perform. Social utility explains media usage somewhat better than technological utility, except in the case of email. Thus, the concept of social utility should be given more attention in future investigations of media choice.     

Promoting preventive behaviors against influenza: Comparison between developing and developed countries

Applying the health belief model, this study examined young adults' intention to adopt preventive behaviors against influenza infection in developing countries (Thailand and Cambodia) and developed countries (the USA and Singapore). Self-efficacy was the only variable significantly related to behavioral intention in the developing countries. In contrast, perceived threat, expected benefits, and media attention were significant predictors in the developed countries. Trust in information sources also had a consistent impact across the two samples. Theoretical and practical implications of the findings are discussed.     

Global justice,national education and local realities in Myanmar: a civil society perspective

Asia Pacific Education Review - This paper examines social justice in relation to the Myanmar education system, from the perspective of participation in decision-making; the social background of...     

It's story time!: exploring the potential of multimodality in oral storytelling to support children's vocabulary learning

Although many studies have been done on the benefits of parent/teacher‐child interactions during shared storybook reading or read‐aloud sessions, very few have examined the potential of professional storytellers' oral discourse to support children's vocabulary learning. In those storytelling sessions conducted by professional storytellers, the process of telling a story is typically not accompanied by a book, but only by the teller's well‐coordinated gestures, facial expressions and voice modulations. In this study, I perform a multimodal analysis of storytellers' oral discourse recorded during two storytelling sessions for four‐to‐five‐year‐old children. The study aims to (1) find out the specific types of vocal and visual features accompanying the spoken words which were unlikely to be known by the children but used by the storytellers for representations of events and characters, and (2) explore the potential of these multimodal features in oral storytelling to support children's inferring of word meanings. The study offers insights into multimodality in oral storytelling and implications for exploring the potential of multimodal features in this form of literacy practice to support children's vocabulary learning.