Two experiments were conducted to test a prediction of the Kosslyn & Shwartz computer simulation model of mental image processing. According to this model, more complex images require more time to form because parts are placed sequentially, and larger images require more time to form than smaller ones because more parts are placed. If these accounts are correct, then the advantage of forming a small image (i.e., one that seems to subtend a smaller visual angle) should be greater for more (...) complex objects because the difference in number of parts imaged at the two sizes will be greater than with simpler objects. This prediction was confirmed only when subjects were not motivated to form highly elaborated images at small sizes. When subject tried to include all details, it actually took longest to form images of complex objects at small sizes. Both of these results support the central assumption of the Kosslyn‐Shwartz model, namely the existence of a fixed resolution analog spatial medium. (shrink)

In this timely, provocative volume, essayists including Susan Moller Okin, Catherine A. MacKinnon, Cass Sunstein, Martha Minow, William Galston, and Sara McLanahan argue positions on sexuality, on the family, and on the proper role of law in these areas.

One antidote to moral distress is stronger moral agency—that is, an enhanced ability to act to bring about change. The Clinical Ethics Residency for Nurses, an educational program developed and run in two large northeastern academic medical centers with funding from the Health Resources and Services Administration, intended to strengthen nurses’ moral agency. Drawing on Improving Competencies in Clinical Ethics Consultation: An Education Guide, by the American Society for Bioethics and Humanities, and on the goals of the nursing profession, CERN (...) sought to change attitudes, increase knowledge, and develop skills to act on one's knowledge. One of the key insights the faculty members brought to the design of this program is that knowledge of clinical ethics is not enough to develop moral agency. In addition to lecture‐style classes, CERN employed a variety of methods based in adult learning theory, such as active application of ethics knowledge to patient scenarios in classroom discussion, simulation, and the clinical practicum. Overwhelmingly, the feedback from the participants (sixty‐seven over three years of the program) indicated that CERN achieved transformative learning. (shrink)

The informed consent process for genetic testing does not commonly address preferences regarding disclosure of results in the event of the patient's death. Adults being tested for familial colorectal cancer were asked whether they want their exome sequencing results disclosed to another person in the event of their death prior to receiving the results. Of 78 participants, 92% designated an individual and 8% declined to. Further research will help refine practices for informed consent.

Despite advances in medical knowledge regarding pain management, pain continues to be significantly undertreated in the United States. There are many drug and nondrug treatments, but the use of controlled substances, particularly the opioid analgesics, is universally accepted for the treatment of pain from cancer. Although opioid analgesics are safe and effective in treating chronic pain, there is continued research and discussion about patient selection and long-term effects. A number of barriers in the health care and drug regulatory systems account (...) for the gap between what is known about pain management and what is practiced. Among the barriers are physicians’ fears of being disciplined by state regulatory boards for inappropriate prescribing.State medical boards are in a unique position not only to address physicians’ concerns about being investigated, but also to encourage pain management. Prior to 1989, a few state medical boards had policies relating to controlled substances or pain. Subsequently, state medical boards began adopting policies regarding the prescribing of opioids for the treatment of pain; many of these specifically addressed physicians’ fear of regulatory scrutiny. (shrink)

Adaptive immunity provides the unique ability to respond to a nearly infinite range of antigenic determinants. Given the inherent plasticity of the adaptive immune system, a series of tolerance mechanisms exist to reduce reactivity toward self. While this reduces the probability of autoimmunity, it also creates an important gap in adaptive immunity: the ability to recognize microbes that look like self. As a variety of microbes decorate themselves in self‐like carbohydrate antigens and tolerance reduces the ability of adaptive immunity to (...) react with self‐like structures, protection against molecular mimicry likely resides within the innate arm of immunity. In this review, we will explore the potential consequences of microbial molecular mimicry, including factors within innate immunity that appear to specifically target microbes expressing self‐like antigens, and therefore provide protection against molecular mimicry. (shrink)

This study investigated the roles of problem structure and strategy use in problem encoding. Fourth‐grade students solved and explained a set of typical addition problems (e.g., 5 + 4 + 9 + 5 = _) and mathematical equivalence problems (e.g., 4 + 3 + 6 = 4 + _ or 6 + 4 + 5 = _ + 5). Next, they completed an encoding task in which they reconstructed addition and equivalence problems after viewing each for 5 s. Equivalence problems (...) of the form 4 + 3 + 6 = 4 + _ overlap with a perceptual pattern found in traditional arithmetic problems (i.e., answer blank in final position), and students' encoding was poorest on problems of this type. Individual differences in encoding the equivalence problems were related to variations in strategy use. Some students solved blank‐final equivalence problems using the standard arithmetic strategy of performing all given operations on all given numbers. These students made more errors in encoding problem structure, but fewer errors in encoding the numbers, than did students who solved the problems using correct or other incorrect strategies. Moreover, students who expressed many strategies for solving the blank‐final equivalence problems made fewer errors in encoding problem structure, but more errors in encoding the numbers, than did students who expressed only a single strategy. Results highlight that encoding is intended to guide action and that prior experience can simultaneously facilitate and interfere with accurate encoding. (shrink)

Activists have challenged the reach of the carceral state into higher education. Whether calling out the exclusion of currently and formerly incarcerated people from higher education or the ways campus police perpetuate the racial and economic biases that plague the US criminal legal system, these voices offer insights that higher education leaders should take seriously. Yet, these challenges are often met with appeals to safety, which purport to override concerns about the harms produced by extension of the criminal legal system (...) into educational contexts. Campus safety debates offer an opportunity to examine the role of wilful ignorance in the perpetuation of systemic injustices on college and university campuses, highlighting tensions between the testimony of those challenging these systems and practices and prevailing narratives around safety. In analysing the operation of wilful ignorance in this context, we will focus on campus policing as a manifestation of carcerality in higher education. We argue that the perpetuation of policing in higher education in the USA reflects wilful White ignorance that represents both an epistemic and moral failing on the part of higher education leaders. (shrink)

Despite advances in medical knowledge regarding pain management, pain continues to be significantly undertreated in the United States. There are many drug and nondrug treatments, but the use of controlled substances, particularly the opioid analgesics, is universally accepted for the treatment of pain from cancer. Although opioid analgesics are safe and effective in treating chronic pain, there is continued research and discussion about patient selection and long-term effects. A number of barriers in the health care and drug regulatory systems account (...) for the gap between what is known about pain management and what is practiced. Among the barriers are physicians’ fears of being disciplined by state regulatory boards for inappropriate prescribing.State medical boards are in a unique position not only to address physicians’ concerns about being investigated, but also to encourage pain management. Prior to 1989, a few state medical boards had policies relating to controlled substances or pain. Subsequently, state medical boards began adopting policies regarding the prescribing of opioids for the treatment of pain; many of these specifically addressed physicians’ fear of regulatory scrutiny. (shrink)

Tumor progression involves the transition from normal to malignant cells, through a series of cumulative alterations. During this process, invasive and migratory properties are acquired, enabling cells to metastasize (reach and grow in tissues far from their origin). Numerous cellular changes take place during epithelial malignancy, and disruption of E‐cadherin based cell‐cell adhesion is a major event. The small Rho GTPases (Rho, Rac and Cdc42) have been implicated in multiple steps during cellular transformation, including alterations on the adhesion status of (...) the tumor cells. This review focuses on recent in vivo evidence that implicates RhoGTPases in epithelial tumor progression. In addition, we discuss different hypotheses to explain disruption of cadherin‐mediated cell–cell adhesion, directly or indirectly, through activation of Rho GTPases. Understanding the molecular mechanism of how cadherin adhesion and RhoGTPases interplay in normal cells and how this balance is altered during cellular transformation will provide clues as to how to interfere with tumor progression. © 2003 Wiley Periodicals, Inc. BioEssays 25:452–463, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Our objective is to present a reading of the issue of mourning in the work of Jacques Derrida. This question intervenes from his first writings, in a clash with Edmund Husserl, to his later work, in which we highlight the dialogue with Martin Heidegger. Without intending to exhaust the issue, we seek to investigate: 1) how mourning intimately constitutes, for Derrida, what is called “human”, contributing to the formation of his subjectivity, the mark of a stage in the history of (...) life; 2) the ethical-political aspects that permeate the issue of mourning, through the themes of memory and inheritance. (shrink)

In this comprehensive collection of essays, most of which appear for the first time, eminent scholars from many disciplines—philosophy, economics, sociology, political science, demography, theology, history, and social psychology—examine the causes, nature, and consequences of present-day consumption patterns in the United States and throughout the world.

Background: The factors influencing parents’ willingness to enroll their children in biobanks are poorly understood. This study sought to assess parents’ willingness to enroll their children, and their perceived benefits, concerns, and information needs under different consent and data-sharing scenarios, and to identify factors associated with willingness. Methods: This large, experimental survey of patients at the 11 eMERGE Network sites used a disproportionate stratified sampling scheme to enrich the sample with historically underrepresented groups. Participants were randomized to receive one of (...) three consent and data-sharing scenarios. Results: In total, 90,000 surveys were mailed and 13,000 individuals responded (15.8% response rate). 5737 respondents were parents of minor children. Overall, 55% (95% confidence interval 50–59%) of parents were willing to enroll their youngest minor child in a hypothetical biobank; willingness did not differ between consent and data-sharing scenarios. Lower educational attainment, higher religiosity, lower trust, worries about privacy, and attitudes about benefits, concerns, and information needs were independently associated with less willingness to allow their child to participate. Of parents who were willing to participate themselves, 25% were not willing to allow their child to participate. Being willing to participate but not willing to allow one’s child to participate was independently associated with multiple factors, including race, lower educational attainment, lower annual household income, public health care insurance, and higher religiosity. Conclusions: Fifty-five percent of parents were willing to allow their youngest minor child to participate in a hypothetical biobank. Building trust, protecting privacy, and addressing attitudes may increase enrollment and diversity in pediatric biobanks. (shrink)