Extreme probabilities for contingency tables under row and column independence with application to fisher's exact test

Theorerms are proved for the maxima and minima of IIR_i!/IIC_j!/T!II_yij ! over r× c contingcncy tables Y=(y_ij) with row sums R₁,…,R_r, column sums C₁,…,C_c, and grand total T. These results are imlplemented into the network algorithm of Mehta and Patel (1983) for computing the P-value of Fisher's exact test for unordered r×c contingency tables. The decrease in the amount of computing time can be substantial when the column sums are very different.     

Unifying CRM and EWOC designs for phase I cancer clinical trials

The main goal of phase I cancer clinical trials is to determine the highest dose of a new therapy associated with an acceptable level of toxicity for the use in a subsequent phase II trial. The continual reassessment method (CRM) [O’Quigley, J., Pepe, M., Fisher, L., 1990. Continual reassessment method: a practical design for phase I clinical trials in cancer. Biometrics 46, 33–48] and escalation with overdose control (EWOC) [Babb, J., Rogatko, A., Zacks, S., 1998. Cancer phase I clinical trials: efficient dose escalation with overdose control. Statist. Med. 17 (10), 1103–1120] are two model-based designs used for phase I cancer clinical trials. A few modifications of the (original) CRM and EWOC have been made by many authors. In this paper, we show how CRM and EWOC can be unified and present a hybrid design. We study the characteristics of the approach of the hybrid design. The comparisons of the three designs (CRM, EWOC, and the hybrid design) are presented by convergence rates and overdose proportions. The simulation results show that the hybrid design generally has faster convergence rates than EWOC and smaller overdose proportions than CRM, especially when the true maximum tolerated dose (MTD) is above the mid-level of the dose range considered. The performance of these three designs is also evaluated in terms of sensitivity to outliers.     

#BlackLivesMatter: Innovative Black Resistance

Since 2013, extrajudicial police killings of black people have captured the attention of U.S. and international media, substantially because of the work of leaders in the Black Lives Matter (#BLM) movement. #BLM is simultaneously a group of localized organizations and a broad online social movement. In this article, we examine the #BLM movement in detail, with particular emphasis on the following aspects of the movement: (1) its innovative organizational practices and social media use; (2) its accent on black perspectives (counterframing) of systemic racial oppression, heteronormativity, and capitalism; and (3) its broad emphasis on oppressed Americans, including black women and LGBTQ people. We also situate the #BLM movement within the surrounding system of racial oppression, including the historical role of racialized policing in maintaining social control of blacks. We detail the long tradition of black social movements, especially black feminist organizing, against systemic racial oppression. In doing so, we intend to contribute social movement theorizing that more fully considers powerful counterframed perspectives of black activists in U.S. social movements. Although the #BLM movement reflects black feminism and past civil rights movement struggles, it is a uniquely twenty‐first‐century social movement that uses new technologies for innovative social protest.     

Linking family engagement with a rights perspective: macro factors influencing practice

While child welfare practitioners in many countries are struggling to develop methods of effective family engagement, they operate within different national and cultural contexts that influence, both positively and negatively, the ability to engage with families. Increasingly, international comparisons are necessary to further understanding of the development of social work practice. This is particularly necessary because most countries utilize international frameworks (such as the United National Convention on the Rights of the Child) to provide guidance in the development of policies, programs, and interventions. Each country (and locality) struggles to advance practice to be more effective and humane. Our paper offers a comparative analysis focused on family-oriented and rights-based frameworks of different countries. Based on a review of current national policies and a review of the literature regarding family-based practices, we examine similarities and differences among four countries: the United Kingdom, Sweden, the United States, and South Korea. These countries were selected because they have some similarities (advanced industrialized democracies, professional social work, and formal child protection systems) but have some differences in their social welfare systems (policies, specific practices, and socio-cultural context). These differences can be utilized to advance understanding regarding the promise and potential for family engagement strategies. We then discuss the utility of this comparison for theory-building in the arena of child-care practice and conclude by identifying the challenges and limitations of this work.     

Championing the interface between mental health and child protection: evaluation of a service initiative to improve joint working in northern Ireland

The importance of establishing effective inter‐agency working between adult mental health services and child care services in order to safeguard children has been repeatedly identified by research, policy, inquiries and inspection reports. This article reports on the evaluation of an initiative in one health and social care trust in Northern Ireland that aimed to facilitate joint working and so improve service provision and protection for children and families. The Champions Initiative involved identifying a Champion in each multidisciplinary community mental health team and in each family and child care team that would have responsibility for providing information, promoting joint working and identifying any obstacles to better cooperation. The evaluation of this Initiative assessed levels of experience, training, confidence, understanding and awareness in the Champions and their team members at baseline. The Champions and their Team Leaders were then followed up after six months to obtain their qualitative views of the impact of the initiative. The results include comparisons between mental health and child care staff, and crucially, views about whether the initiative has had any impact on working together. This study also generated recommendations for further service development in this complex and important area of practice. Copyright © 2010 John Wiley & Sons, Ltd.

‘Identifying a Champion in each multidisciplinary community mental health team and in each family and child care team’

Citing Literature

Number of times cited according to CrossRef: 15

• Kerry McVeigh, The Think Family Social Work Assessment: outcomes of a family-focused initiative using The Family Model, Advances in Mental Health, 10.1080/18387357.2020.1825969, (1-15), (2020). Crossref
• Billie Lever Taylor, Liberty Mosse, Nicky Stanley, Experiences of social work intervention among mothers with perinatal mental health needs, Health & Social Care in the Community, 10.1111/hsc.12832, 27 , 6, (1586-1596), (2019). Wiley Online Library
• Lelia Fitzsimons, The role of champions in promoting family focused practice across adult mental health and children's services, Advances in Mental Health, 10.1080/18387357.2019.1661783, (1-10), (2019). Crossref
• Nicky Stanley, Khatidja Chantler, Rachel Robbins, Children and Domestic Homicide, The British Journal of Social Work, 10.1093/bjsw/bcy024, 49 , 1, (59-76), (2018). Crossref
• Sanne Rumping, Leonieke Boendermaker, Doret J. Ruyter, Stimulating interdisciplinary collaboration among youth social workers: A scoping review, Health & Social Care in the Community, 10.1111/hsc.12589, 27 , 2, (293-305), (2018). Wiley Online Library
• Robin Mason, Janice Du Mont, Maeve Paterson, Ilene Hyman, Experiences of child protection workers in collaborating with adult mental health providers: An exploratory study from Ontario, Canada, Children and Youth Services Review, 10.1016/j.childyouth.2018.02.005, 86 , (271-276), (2018). Crossref
• Andani Thakhathi, Champions of Change and Organizational Development: A Return to Schön and Typology for Future Research and Practice, Research in Organizational Change and Development, 10.1108/S0897-301620180000026007, (265-306), (2018). Crossref
• Phillip Tchernegovski, Andrea E. Reupert, Darryl J. Maybery, How do Australian adult mental health clinicians manage the challenges of working with parental mental illness? A phenomenological study, Child & Family Social Work, 10.1111/cfs.12426, 23 , 3, (381-389), (2017). Wiley Online Library
• Eeva Timonen-Kallio, Juha Hämäläinen, Eila Laukkanen, Interprofessional Collaboration in Finnish Residential Child Care: Challenges in Incorporating and Sharing Expertise Between the Child Protection and Health Care Systems, Child Care in Practice, 10.1080/13575279.2016.1158153, 23 , 4, (389-403), (2016). Crossref
• Barry Luckock, Jane Barlow, Chris Brown, Developing innovative models of practice at the interface between the NHS and child and family social work where children living at home are at risk of abuse and neglect: a scoping review, Child & Family Social Work, 10.1111/cfs.12228, 22 , S4, (62-69), (2015). Wiley Online Library
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• Estela Arcos, Ximena Sanchez, Maria Cecilia Toffoletto, Margarita Baeza, Patricia Gazmuri, Luz Angélica Muñoz, Antonia Vollrath, Social protection systems in vulnerable families: their importance for the public health, Revista de Saúde Pública, 10.1590/S0034-8910.2014048005131, 48 , 3, (398-405), (2014). Crossref
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• Peter Sidebotham, Rethinking Filicide, Child Abuse Review, 10.1002/car.2303, 22 , 5, (305-310), (2013). Wiley Online Library
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Volume 21 , Issue 3 May/June 2012

Pages 157-172     

Evaluating the Evaluators: Should Investors Trust Corporate Governance Metrics Ratings?

Companies are under increasing pressure to have their corporate governance rated by an independent corporate governance metrics firm, such as Institutional Shareholder Services (ISS) or Governance Metrics International (GMI). These rating firms claim to be able to determine how effective and responsive a company’s board is. Institutional investors have begun using these board governance ratings when deciding which firms to include in their stock portfolios. This paper considers whether investors, many of whom claim to be socially responsible, should be relying upon board governance metrics. We find that these metrics are not good indicators of either the quality of a firm’s earnings or of its ethics.     

Organizational Learning in Global Purchasing: A Model and Test of Internal Users and Corporate Buyers*

This research examines a model centered on organizational learning in purchasing. Two different studies are conducted to test the hypotheses among purchasing users (Study 1) and buyers (Study 2). The user sample consists of users representing 355 strategic business units of a Fortune 500 multinational corporation. The buyer sample consists of corporate buyers of 200 multinational corporations drawn from the membership directory of the National Association of Purchasing Management (NAPM). In each study, the focus is on the learning relationships between corporate buyers and internal users in the purchasing organization. Based on the two studies, the results suggest that organizational learning in the purchasing process is influenced by the organizational culture factors of localness, transformational leadership, and openness. Organizational learning has a positive effect on information processing in the purchasing system, which, in turn, has a positive influence on the cycle time of the purchasing process.