SummaryCross-sectional studies in Australia and the Philippines and a longitudinal prospective study in a selected Australian sample of breast-feeding mothers have shown that basal serum prolactin concentrations are elevated during 15–21 months of lactational amenorrhoea.A predictive model of serum PRL levels and return of cyclic ovarian activity during full breast-feeding, partial breast-feeding and weaning has been developed from the results of breast-feeding behaviour and serum PRL, gonadotrophin and oestradiol measurements in 34 mothers breast-feeding on demand for a mean of 67 (...) weeks.Breast-feeding patterns influence serum PRL levels. Important factors during full breast-feeding are the age of the baby, the longest interval between feeds at night and total 24-hr suckling time, and following the introduction of supplements, the mean interval between feeds, together with the total 24-hr suckling time and the number of solid supplements per day.The precise mechanisms whereby breast-feeding regulates cyclic ovarian activity remain unknown. Gonadotrophin secretion appears to be quantitatively normal, but qualitative changes, secondary to altered hypothalamic activity, may be the most important factor. A direct inhibitory effect of PRL on ovarian follicular development and steroidogenesis remains possible.Ovulation with a normal luteal phase is probable for 30% of breast-feeding mothers before the first menses, but is unlikely before 6 months, provided breast-feeding is frequent day and night.Measurement of serum PRL is a sensitive index of the return of menstruation and fertility during lactation in the population studied. (shrink)

Simply put, charter schools have not lived up to their advocates’ promise of equity. Using examples of tangible civil rights gains of the twentieth century and extending feminist theories of invisible labor to include the labor of democracy, the authors argue that the charter movement renders invisible the labor that secured civil protections for historically marginalized groups. The charter movement hangs a quality public education—previously recognized as a universal guarantee—on the education consumer’s ability to navigate a marketplace. The authors conclude (...) that the neoliberal agenda of positioning choice as the best mechanism for securing an education rolls back the rights that were already secured through the labor of democracy. (shrink)

On the verge of the one hundredth anniversary of the founding of the American Association of University Professors, we examine the organization’s focus on academic freedom, shared governance, and the challenges the AAUP faced during its early years. The history is a fairly uncontested one: higher education in the late nineteenth and early twentieth centuries in the United States was the context for the struggle over academic freedom and shared governance. Dismissed professors, resignations by colleagues, and the struggle of professionalization (...) characterize the period.1 A century later, we wonder about the state of academic freedom and shared governance. We argue that higher education is currently so.. (shrink)

There has been no generally accepted cognitive definition of dreaming. An electrophysiologic correlate (REM sleep) has become its defining characteristic. Dreaming and REM sleep are complex states for which the Dreaming + REMs model is over-simplified and limited. The target articles in this BBS special issue present strong evidence for a dissociation between dreaming and REM sleep. [Hobson et al.; Nielsen, Revonsuo; Solms; Vertes & Eastman].

The phylogenetic data are inconsistent with the hypothesis that REM sleep duration is correlated with learning or learning ability. Humans do not have uniquely high amounts of REM sleep. The platypus, marsupials, and other mammals not generally thought to have extraordinary learning abilities have the largest amounts of REM sleep. The whales and dolphins (cetaceans) have the lowest amounts of REM sleep and may go without REM sleep for extended periods of time, despite their prodigious learning abilities. Vertes & (...) class='Hi'>Eastman]. (shrink)

Information processing theories of memory and skills can be reformulated in terms of how categories are physically and temporally related, a process called conceptual coordination. Dreaming can then be understood as a story-understanding process in which two mechanisms found in everyday comprehension are missing: conceiving sequences (chunking categories in time as a higher-order categorization) and coordinating across modalities (e.g., relating the sound of a word and the image of its meaning). On this basis, we can readily identify isomorphisms between dream (...) phenomenology and neurophysiology, and explain the function of dreaming as facilitating future coordination of sequential, cross-modal categorization (i.e., REM sleep lowers activation thresholds, “unlearning”). [Hobson et al.; Nielsen; Solms; Revonsuo; Vertes & Eastman]. (shrink)

A new working hypothesis of sleep-wake cycle mechanisms is proposed, based on ontogeny and functional/anatomic compression of two stochastic neuronal models of information coding that complement each other in a key/lock fashion: the axonal arbor patterns (AAP – “hardware”) and the neuronal spike interval inequality patterns (SIIP – “software”). [Hobson et al.; Nielsen; Revonsuo; Solms; Vertes & Eastman].

In this series of articles, several new hypotheses on sleep and dreaming are presented. In each case, we feel the data do not adequately support the hypothesis. In their lengthy discourse, Hobson et al. represent to us the familiar reciprocal interaction model dressed in new clothes, but expanded beyond reasonable testability. Vertes & Eastman have proposed that REM sleep is not involved in memory consolidation. However, we do not find their arguments persuasive in that limited differences in activity in (...) REM and waking do not lend credence to the idea that memory consolidation occurs in one state and not the other. Solms makes an argument that dreams are generated from the dopaminergic forebrain based largely on pathological lesion studies in humans. We recognize that this argument has some intuitive appeal and agree with some of the tenets but we do not feel that the arguments are completely convincing due to the lack of anatomical controls, including symmetry and laterality. On the whole, there are interesting arguments put forward in these target articles but the evidence does not convince us that new vistas are opened. No Holy Grail of sleep here! [Hobson et al.; Solms; Vertes & Eastman]. (shrink)

The eight books of The Letters of George Santayana bring together over 3,000 letters, many of which have been discovered in the fifty years since Santayana's death. This sixth book covers four years of Santayana's life in Rome, his permanent residence since the late 1920s. During these years, Santayana, in his seventies, saw the publication of the remaining nine volumes of the Triton Edition of his work as well as the last two books of his Realms of Being: The Realm (...) of Truth and The Realm of Spirit. In 1938 the first book-length biography of Santayana was published, and in 1940 The Philosophy of George Santayana--a collection of critical essays that included Santayana's rejoinder, "Apologia pro Mente Sua"--was published as volume two of Northwestern University Press?s Library of Living Philosophers. In 1939, when war broke out in Europe and Swiss authorities denied him a long-term visa, Santayana decided to stay in Italy, where he was to remain for the rest of his life.The letters in this book are written to such correspondents as Van Meter Ames, Curt John Ducasse, Max Forrester Eastman, Max Fisch, Sidney Hook, Horace Meyer Kallen, Christopher Janus, Milton Munitz, William Lyon Phelps, and Ezra Pound, and include discussions of the work of Henri Bergson, T. S. Eliot, William Faulkner, and Ezra Pound, among others. (shrink)

ABSTRACT When is it right to enforce medical treatment on a patient who is refusing that treatment? English law recognises two ethical principles as of paramount importance: the autonomy of the patient; and the consequences of not treating compared with treating. The law, by and large, operates these principles in succession. Thus, in the case of a patient refusing treatment, the law asks first, is the patient competent? Only if the answer is no, are the consequences considered. We criticise the (...) position taken by English law and argue, first, that competence is a graded and not a binary concept, and secondly, that the two ethical principles should be applied not sequentially but at the same time. These two ideas form what we have called the balance model. This model could be used for an empirical study of individuals’ ethical beliefs, and in particular to test the hypothesis that the ethical beliefs of most individuals conform to the balance model rather than to the position taken by English law. (shrink)

Ethical sensitivity triggers the entire ethical decision-making process (i.e., recognition of ethical content in work situations). In this article, five factors are examined that affect tax practitioners' professional ethical sensitivity. The five factors that were examined include role conflict, role ambiguity, job satisfaction, professional commitment, and ethical orientation. Ethical content in work situations is examined in relation to professional ethics as enumerated by the American Institute of Certified Public Accountant's (AICPA) Statements on Responsibilities in Tax Practice (SRTP). Utilizing Hunt and (...) Vitell's (1986, 1993) General Theory of Ethics, a model of ethical sensitivity was constructed and empirically tested. Role conflict negatively and job satisfaction positively influenced tax practitioners' ethical sensitivity. Also, the covariates of the tax practitioner's professional risk level and type of employer were found to be significant. The significant factors are job specific. The tax firm may have the best opportunity to positively change a tax practitioner's ethical recognition abilities. Professional accounting organizations may need to evaluate if resources should be used to formulate, maintain, and publicize codes of conduct because of the lack of significance of professional commitment. (shrink)

This paper explores the characteristics of debilitating versus beneficial intersubjective engagements, by discussing the role of sin in the relational constitution of the self in Paul’s letter to the romans. Paul narrates ”sin’ as both a destructive holding environment and an interpersonal agent in a lethal embrace with human beings. The system of self-in-relation-to-sin is transactional, competitive, unidirectional, and domineering, operating implicitly within an economy of lack. Conversely, Paul’s account in romans of the divine action that moves persons into a (...) new identity of self-in-relationship demonstrates genuinely second-personal qualities: it is loving, non-transactional, non- competitive, mutual, and constitutive of personal agency. (shrink)

Recent studies indicate that mammalian chromosomes contain discretecis‐acting loci that control replication timing, mitotic condensation, and stability of entire chromosomes. Disruption of the large non‐coding RNA gene ASAR6 results in late replication, an under‐condensed appearance during mitosis, and structural instability of human chromosome 6. Similarly, disruption of the mouse Xist gene in adult somatic cells results in a late replication and instability phenotype on the X chromosome. ASAR6 shares many characteristics with Xist, including random mono‐allelic expression and asynchronous replication timing. (...) Additional “chromosome engineering” studies indicate that certain chromosome rearrangements affecting many different chromosomes display this abnormal replication and instability phenotype. These observations suggest that all mammalian chromosomes contain “inactivation/stability centers” that control proper replication, condensation, and stability of individual chromosomes. Therefore, mammalian chromosomes contain four types ofcis‐acting elements, origins, telomeres, centromeres, and “inactivation/stability centers”, all functioning to ensure proper replication, condensation, segregation, and stability of individual chromosomes. (shrink)

We present evidence disputing the hypothesis that memories are processed or consolidated in REM sleep. A review of REM deprivation (REMD) studies in animals shows these reports to be about equally divided in showing that REMD does, or does not, disrupt learning/memory. The studies supporting a relationship between REM sleep and memory have been strongly criticized for the confounding effects of very stressful REM deprivation techniques. The three major classes of antidepressant drugs, monoamine oxidase inhibitors (MAOIs), tricyclic antidepressants (TCAs), and (...) selective serotonin reuptake inhibitors (SSRIs), profoundly suppress REM sleep. The MAOIs virtually abolish REM sleep, and the TCAs and SSRIs have been shown to produce immediate (40–85%) and sustained (30–50%) reductions in REM sleep. Despite marked suppression of REM sleep, these classes of antidepressants on the whole do not disrupt learning/memory. There have been a few reports of patients who have survived bilateral lesions of the pons with few lingering complications. Although these lesions essentially abolished REM sleep, the patients reportedly led normal lives. Recent functional imaging studies in humans have revealed patterns of brain activity in REM sleep that are consistent with dream processes but not with memory consolidation. We propose that the primary function of REM sleep is to provide periodic endogenous stimulation to the brain which serves to maintain requisite levels of central nervous system (CNS) activity throughout sleep. REM is the mechanism used by the brain to promote recovery from sleep. We believe that the cumulative evidence indicates that REM sleep serves no role in the processing or consolidation of memory. Key Words: antidepressant drugs; brain stem lesions; dreams; functional imaging; memory consolidation; REM deprivation; REM sleep; theta rhythm. (shrink)

The United States is one of the most charitable nations, yet comprises some of the most materialistic citizens in the world. Interestingly, little is known about how the consumer trait of materialism, as well as the opposing moral trait of gratitude, influences charitable giving. We address this gap in the literature by theorizing and empirically testing that the effects of these consumer traits on charitable behavior can be explained by diverse motivations. We discuss the theoretical implications, along with implications for (...) charitable organizations, and offer suggestions for future research. (shrink)

ABSTRACT:Research on political ideology in law and psychology can be fruitfully applied to the question of whether business ethics is ideological, and, if so, what response is warranted. I suggest that legal and psychological research streams can be drawn upon to create a new genre of critical business ethics that differs from normative and empirical business ethics. In psychology, Moral Foundations Theory (MFT) suggests how the mainstream ideology within an academic field can be criticized as a reflection of a self-righteous, (...) us-them mind-set. In law, Critical Legal Studies (CLS) suggests how a field’s mainstream ideology can be criticized as a rationalization of the status quo. I suggest that the MFT and CLS criticisms of ideology can be joined to develop a critical approach to business ethics that seriously examines science on normatively charged topics, such as liberal-conservative differences and implicit attitudes, and that frames it in terms of alternative narratives. (shrink)

We believe that this has been a constructive debate on the topic of memory consolidation and REM sleep. It was a lively and spirited exchange – the essence of science. A number of issues were discussed including: the pedestal technique, stress, and early REMD work in animals; REM windows; the processing of declarative versus procedural memory in REM in humans; a mnemonic function for theta rhythm in waking but not in REM sleep; the lack of cognitive deficits in patients on (...) antidepressant drugs that suppress or eliminate REM sleep; the disposition of conscious (dreams) and nonconscious material of REM sleep; and finally our theory of REM sleep. Although our position was strongly challenged, we still hold that REM sleep serves no role in the processing and consolidation of memory. (shrink)

As the issue of marketing's social responsibility grows in significance, the topic of materialism surfaces. While many marketing efforts encourage materialism, the materialism that is encouraged may have negative societal effects. An understanding of the effects of materialism on individuals, families, society, etc., is important in evaluating whether or not it is socially irresponsible for marketers to encourage materialism. However, the adequate empirical work has not yet been done on the overall effects of materialism. The current paper asks and addresses (...) one important empirical question in this area. Do consumers who are more materialistic have different ethical standards than those who are not? Empirical evidence is presented which would indicate that materialism is negatively correlated with people's higher ethical standards as consumers. The implications for this in understanding social responsibility are discussed. (shrink)

Vaesen infers unique properties of mind from the appearance of specific cultural innovation – a correlation without causal direction. Shifts in habitat, population density, and group dynamics are the only independently verifiable incentives for changes in cultural practices. The transition from Acheulean to Late Stone Age technologies requires that we consider how population and social dynamics affect cultural innovation and mental function.

The first English translation of Fichte’s second set of 1804 lectures on the Wissenschaftslehre.

Orthologic is defined by weakening the axioms and rules of inference of the classical propositional calculus. The resulting Lindenbaum-Tarski quotient algebra is an orthoimplication algebra which generalizes the author's implication algebra. The associated order structure is a semi-orthomodular lattice. The theory of orthomodular lattices is obtained by adjoining a falsity symbol to the underlying orthologic or a least element to the orthoimplication algebra.

Untying the Gordian Knot shows how the fundamental notions of process, logic and relations, woven with triads of input-output-context, can be combined with quantum distinctions associated with actuality and potentiality, enabling the leveraging of many advances in philosophy and physics to unravel several long-standing philosophical problems.

This new edition of Law and Medical Ethics continues to chart the ever-widening field that the topics cover. The interplay between the health caring professions and the public during the period intervening since the last edition has, perhaps, been mainly dominated by wide-ranging changes in the administration of the National Health Service and of the professions themselves but these have been paralleled by important developments in medical jurisprudence.

The purpose of this text is to draw attention to eight forgotten heroes: William C. Bagley, Charles DeGarmo, David Felmley, William Torrey Harris, Isaac L. Kandel, Charles McMurry, William C. Ruediger, and Edward Austin Sheldon. They have been marginalized from our profession, and drawing upon their legacy is the best hope for restoring the profession of teaching today. This work also includes a chapter at the end of the book entitled "John Dewey's Forgotten Essays." The audience for this book includes: (...) 1) classroom teachers, 2) school administrators, 3) teacher educators, 4) deans and other university administrators, 5) college and university presidents, 6) legislators, 7) historians of education, 8) curriculum specialists, 9) specialists in teacher training, and 10) the general public. (shrink)