Pleiotropically acting eukaryotic corepressors such as retinoblastoma and SIN3 have been found to physically interact with many widely expressed “housekeeping” genes. Evidence suggests that their roles at these loci are not to provide binary on/off switches, as is observed at many highly cell‐type specific genes, but rather to serve as governors, directly modulating expression within certain bounds, while not shutting down gene expression. This sort of regulation is challenging to study, as the differential expression levels can be small. We hypothesize (...) that depending on context, corepressors mediate “soft repression,” attenuating expression in a less dramatic but physiologically appropriate manner. Emerging data indicate that such regulation is a pervasive characteristic of most eukaryotic systems, and may reflect the mechanistic differences between repressor action at promoter and enhancer locations. Soft repression may represent an essential component of the cybernetic systems underlying metabolic adaptations, enabling modest but critical adjustments on a continual basis. (shrink)

Preparing the Next Generation of Oral Historians is an invaluable resource to educators seeking to bring history alive for students at all levels. Filled with insightful reflections on teaching oral history, it offers practical suggestions for educators seeking to create curricula, engage students, gather community support, and meet educational standards. By the close of the book, readers will be able to successfully incorporate oral history projects in their own classrooms.

Research ethics education has taken many forms since federal funding agencies issued regulatory guidance directing those supported by these agencies to complete required training. In the absence of a standard training approach among institutions such as universities, the design and content of courses, workshops, and seminars varies widely. Here we describe a southwestern United States research university program that employed six teaching strategies to assist students in deep learning of ethical principles and behavior. Our purpose was to determine how these (...) strategies impact understanding and empowerment among an interdisciplinary group of graduate students. Results suggested that deep learning design can result in learning that requires students not only to remember and understand key ethics concepts but also to analyze and apply them in a broader ethical domain. Key findings inform design and delivery of future research ethics courses for instructional designers and instructors in higher education. (shrink)

This book reclaims Hegel's notion of the "end of art"-or, more precisely, of "art's past character"-not just as a piece of the history of philosophy but as a living critical and interpretive methodology. It addresses the presence of the past character of art both in Hegel and contemporary philosophy and aesthetics. The book's innovative contribution lies in unifying the Hegelian thesis with discussions of contemporary art and philosophy. The author not only offers a Hegelian exegesis but applies the idea of (...) the past character of art to themes that are both related to Hegel's philosophy, such as the French Revolution and the modern state, Kantian aesthetics, and religion and the sacred space disclosed for art, and going beyond Hegel, such as Celan's poetry, Gramsci's criticism of Croce, human rights, and even the grunge rock band Pearl Jam. Conversely, such non-Hegelian explorations will help enlighten what may look like a specific thread of Hegel's aesthetics, but can be used to shed light on some core motives of his philosophy. The author's interpretation of art's past character reclaims the full value, attractiveness, and philosophical soundness of Hegel's thesis, while rejecting its interpretation in terms of a complete dissolution of the aesthetic element into the philosophical one. Hegel and the Present of Art's Past Character will be of interest to scholars and advanced students working on Hegel, philosophy of art and aesthetics, history of philosophy, political philosophy, and art theory. (shrink)

O livro almeja ser representativo nos principais debates contemporâneos, oferecendo uma visão panorâmica sobre o campo na atualidade e permitindo-se aprofundar em algumas discussões selecionadas.O ambiente não pode ser reduzido ao “meio ambiente”, à natureza não humana. Ele não é meramente algo que “nos envolve”, um envoltório: o ambiente somos também nós, seres humanos, histórica e culturalmente situados. Quanto aos territórios, eles se estabelecem em íntima conexão com os ambientes em suas dimensões paisagística e material, quer sejam os processos geoecológicos, (...) quer sejam as formas e as dinâmicas socialmente produzidas. Analisar os territórios significa examinar como, a cada momento, os ambientes, seus recursos e significados são disputados e viram objeto de conflitos.O público-alvo principal são os estudantes dos últimos anos da graduação, além daqueles em nível de pós-graduação, de todas as áreas que lidam com problemas e conflitos ambientais. Afora os pesquisadores iniciantes e os jovens universitários em geral, porém, podemos presumir que profissionais experientes também poderão tirar proveito do material de diversos capítulos. É razoável, por fim, nutrir a expectativa de que muito do que este livro contém possa (retro)alimentar o ativismo ambiental crítico e a prática de combater as iniquidades e as distorções que se acumulam em nossas sociedades, principalmente as muitas situações de flagrante injustiça ambiental. (shrink)

US Supreme Court rulings concerning sanctions for juvenile offenders have drawn on the science of brain development and concluded that adolescents are inherently less mature than adults in ways that render them less culpable. This conclusion departs from arguments made in cases involving the mature minor doctrine, in which teenagers have been portrayed as comparable to adults in their capacity to make medical decisions. I attempt to reconcile these apparently incompatible views of adolescents’ decision-making competence. Adolescents are indeed less mature (...) than adults when making decisions under conditions that are characterized by emotional arousal and peer pressure, but adolescents aged 15 and older are just as mature as adults when emotional arousal is minimized and when they are not under the influence of peers, conditions that typically characterize medical decision-making. The mature minor doctrine, as applied to individuals 15 and older, is thus consistent with recent research on adolescent development. (shrink)

Understanding a proposition for an intelligent agent is an important epistemic concept. We first discuss intuitively general logic characteristics of understanding, and give a language and a semantics containing understanding as a modal operator. Secondly, we develop the system LU for the operator, give some results of its proof theory, and then we prove the frame soundness and frame completeness of LU.

Social learning has been shown to be an evolutionarily adaptive strategy, but it can be implemented via many different cognitive mechanisms. The adaptive advantage of social learning depends crucially on the ability of each learner to obtain relevant and accurate information from informants. The source of informants’ knowledge is a particularly important cue for evaluating advice from multiple informants; if the informants share the source of their information or have obtained their information from each other, then their testimony is statistically (...) dependent and may be less reliable than testimony from informants who do not share information. In this study, we use a Bayesian model to determine how rational learners should incorporate the effects of shared information when learning from other people, conducting three experiments that examine whether human learners behave similarly. We find that people are sensitive to a number of different patterns of dependency, supporting the use of a sophisticated strategy for social learning that goes beyond copying the majority, and broadening the situations in which social learning is likely to be an adaptive strategy. (shrink)