What did C. S. Lewis think about truth, goodness and beauty? Fifteen essays explore three major philosophical themes from the writings of Lewis--Truth, Goodness and Beauty. This volume provides a comprehensive overview of Lewis's philosophical thinking on arguments for Christianity, the character of God, theodicy, moral goodness, heaven and hell, a theory of literature and the place of the imagination.

Pandemics first and foremost hit those who are most vulnerable, and the COVID-19 pandemic is not different. Although the infection rate in the nation’s poorest neighborhoods is twice as it is in th...

Rare copy number variants have a prominent role in the aetiology of schizophrenia and other neuropsychiatric disorders. Substantial risk for schizophrenia is conferred by large CNVs at several loci, including microdeletions at 1q21.1, 3q29, 15q13.3 and 22q11.2 and microduplication at 16p11.2. However, these CNVs collectively account for a small fraction of cases, and the relevant genes and neurobiological mechanisms are not well understood. Here we performed a large two-stage genome-wide scan of rare CNVs and report the significant association of copy (...) number gains at chromosome 7q36.3 with schizophrenia. Microduplications with variable breakpoints occurred within a 362-kilobase region and were detected in 29 of 8,290 patients versus 2 of 7,431 controls in the combined sample. All duplications overlapped or were located within 89 kilobases upstream of the vasoactive intestinal peptide receptor gene VIPR2. VIPR2 transcription and cyclic-AMP signalling were significantly increased in cultured lymphocytes from patients with microduplications of 7q36.3. These findings implicate altered vasoactive intestinal peptide signalling in the pathogenesis of schizophrenia and indicate the VPAC2 receptor as a potential target for the development of new antipsychotic drugs. © 2011 Macmillan Publishers Limited. All rights reserved. (shrink)

In our target article (Sabatello et al. 2021), we proposed the use of community engagement and the establishment of a Truth and Reconciliation Commission (TRC) as pathways for promoting social just...

Obstructive sleep apnea (OSA) severely impacts sleep and has long-term health consequences. Treating sleep apnea with continuous positive airway pressure (CPAP) not only relieves obstructed breathing, but also improves sleep. CPAP improves sleep by reducing apnea-induced awakenings. CPAP may also improve sleep by enhancing features of sleep architecture assessed with electroencephalography (EEG) that maximize sleep depth and neuronal homeostasis, such as the slow oscillation and spindle EEG activity, and by reducing neurophysiological arousal during sleep (i.e., beta EEG activity). We examined (...) cross-sectional differences in quantitative EEG characteristics of sleep, assessed with power spectral analysis, in 29 adults with type 2 diabetes treated with CPAP and 24 adults undergoing SHAM CPAP treatment (total n = 53). We then examined changes in spectral characteristics of sleep as the SHAM group crossed over to active CPAP treatment (n = 19). Polysomnography (PSG) from the CPAP titration night was used for the current analyses. Analyses focused on EEG frequencies associated with sleep maintenance and arousal. These included the slow oscillation (0.5–1 Hz), sigma activity (12–16 Hz, spindle activity), and beta activity (16–20 Hz) in F3, F4, C3, and C4 EEG channels. Whole night non-rapid eye movement (NREM) sleep and the first period of NREM spectral activity were examined. Age and sex were included as covariates. There were no group differences between CPAP and SHAM in spectral characteristics of sleep architecture. However, SHAM cross-over to active CPAP was associated with an increase in relative 12–16 Hz sigma activity across the whole night and a decrease in average beta activity across the whole night. Relative slow oscillation power within the first NREM period decreased with CPAP, particularly for frontal channels. Sigma and beta activity effects did not differ by channel. These findings suggest that CPAP may preferentially enhance spindle activity and mitigate neurophysiological arousal. These findings inform the neurophysiological mechanisms of improved sleep with CPAP and the utility of quantitative EEG measures of sleep as a treatment probe of improvements in neurological and physical health with CPAP. (shrink)

In Alabaster v. Barclays Bank plc and Secretary of State for Social Security (No. 2: [2005] E.W.C.A Civ. 508, [2005] I.R.L.R. 576.) Michelle Alabaster won a grand total of £204.53 (plus £65.86 interest) after eight years of litigation, which included two visits to the Court of Appeal and one to the European Court of Justice. This marathon resulted from the sex discrimination which Alabaster had alleged in relation to the calculation of her Statutory Maternity Pay (S.M.P.) whilst she was pregnant (...) 10 years earlier. The technicalities of the statutory schemes involved should not be allowed to disguise the important principle which finally emerges in the Court of Appeal and which underlines one of the longstanding criticisms of the equality legislation, namely the requirement that a woman must compare herself with a man in order to establish unlawful sex discrimination. (shrink)

In Britiain, it is unlawful,regardless of the motive of the discriminator,to refuse to give a woman a job because of hersex. On the other hand, the U.K. case ofCoker and Osamor v. The Lord Chancellor and theLord Chancellor's Department suggests that itis permissible, by `pre-selecting' anindividual man, to rule out any possible femalecandidates. The singular facts of this caseshould not disguise the troubling conclusionthat while sex (and race) discrimination maysometimes be blatant and deliberate, morefrequently it is subtle and routine. Furthermore, (...) discrimination is much moredifficult to challenge, let alone eradicate,when it is embedded in the system. This notestarts from the premise that, while sexequality requires more than the appointment ofwomen to influential posts, that is, at least,a start and if it is decided in advance thatappointments will be made only from a smallcircle of `acceptable' people there is a realdanger that the idea of the `establishment' asa self-perpetuating (white) male enclave willbe confirmed. (shrink)

When an experimenter uses the experimental method to investigate the effects of the experimenter's expectancy it may be that this research, too, is affected by his expectancy and thus there is an expectancy paradox. To the extent that the experimenter expectancy effect accounts for the variation in the dependent variable and is general, that is to say, universal in psychological research, the expectancy paradox is ineluctable. However, an analysis of the research reviews extant in this area yields the conclusion that (...) expectancy effects are neither inexorable nor highly general in psychological research and this provides the basis for its extrication from the expectancy paradox. (shrink)

Despite the by now historical tendency to demarcate scientific epistemology sharply from virtually all others, especially theological “epistemology,” it has recently been recognized that both enterprises share a great deal in common, at least as far as the epistemology of discovery is implicated. Such a claim is founded upon a psychological analysis of figuration, where, it is argued, metaphor plays a crucial role in the mediation of discovery, in the domains of science and religion alike. Thus, although the conventionally conceived (...) scientific method is crucial to the enterprise, primacy must nonetheless be accorded to discovery, which drives virtually all disciplines. (shrink)

In the course of writing this book, answers to the following questions and many others were given in both narrative and visual form. Most of them were presented rather forcefully, and not when I was expecting them. I understood that I was to share what I learned. What is in store for the geology of North America? How do we create matter every day? What is the nature of nature? How did people live more than a half million years ago? (...) What was space travel like a half million years ago? Where is God? What are our responsibilities as humans? Is Hitler in heaven? How can we go to heaven? (shrink)

In computer science, an algorithm is an unambiguous specification of how to solve a class of problems. Algorithms can perform calculation, data processing and automated reasoning tasks. As an effective method, an algorithm can be expressed within a finite amount of space and time and in a well-defined formal language for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, (...) eventually producing "output" and terminating at a final ending state. The transition from one state to the next is not necessarily deterministic; some algorithms, known as randomized algorithms, incorporate random input. This book introduces a set of concepts in solving problems computationally such as Growth of Functions; Backtracking; Divide and Conquer; Greedy Algorithms; Dynamic Programming; Elementary Graph Algorithms; Minimal Spanning Tree; Single-Source Shortest Paths; All Pairs Shortest Paths; Flow Networks; Polynomial Multiplication, to ways of solving NP-Complete Problems, supported with comprehensive, and detailed problems and solutions, making it an ideal resource to those studying computer science, computer engineering and information technology. (shrink)

Philosophers of experiment have acknowledged that experiments are often more than mere hypothesis-tests, once thought to be an experiment's exclusive calling. Drawing on examples from contemporary biology, I make an additional amendment to our understanding of experiment by examining the way that `wide' instrumentation can, for reasons of efficiency, lead scientists away from traditional hypothesis-directed methods of experimentation and towards exploratory methods.

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 61.1 (2000) 153-156 [Access article in PDF] JHI 2000 Donald R. Kelley It was just sixty years ago that this Journal first made its appearance. Two hundred thirty-nine issues later it continues in a world transformed by war, overpopulation, cultural shocks, scientific and technological transformations, globalization, the avalanche of information produced by electronic exchange, and "the acceleration of just about everything." Yet despite (...) these factors and the strains of postmodernism and cultural alterity, 1 it has not entirely lost touch with its intellectual innocence, faith in humanistic learning, and reliance on enlightened reason. This continuity itself may seem something of a novelty in an age of distrust of history and "rage against reason," but for some of us it reflects the critical spirit and intellectual context out of which such ostensibly subversive attitudes emerge, and reemerge. To some extent, moreover, the diversity of opinions about intellectual traditions is the result of specializations, and special interests, which have changed the climate of opinion since the time of Arthur O. Lovejoy, principal founder of the JHI. Lovejoy's vision was super- as well as inter-disciplinary; that is, he intended to include in the agenda of "history of ideas" particular areas of history of philosophy, literature, art, science, social science, etc., as well as the larger intellectual and cultural areas into which these disciplinary histories extend. 2 These days, however, all these disciplinary traditions have their own more specialized journals and do not need to seek a vehicle in publications of more general interest. What remains then, for the most part, is the interdisciplinary arena in which larger questions of human experience should be posed--and for Lovejoy, as for so many epigones and critics, the main "larger question" is not only one of value but also of specifically historical inquiry. 3 [End Page 153]The first issue of the JHI appeared under the editorship of Lovejoy (with Philip Wiener, who did most of the editorial work, as "managing editor"), assisted by a committee that included two historians, three philosophers, four literary scholars, and one political theorist; namely, Crane Brinton, Gilbert Chinard, Morris Cohen, Francis Coker, Richard McKeon, Perry Miller, Marjory Nicolson, J. H. Randall, J. Salwyn Schapiro, and Louis Wright. The first volume featured contributions from each of these, including Wiener, except for Miller (vol. 2), Shapiro (vol. 3), McKeon (vol. 8), and Coker. 4 During the first five years there were also reviews of books by Dilthey (by Horace L. Friess), Croce (Schapiro), Mannheim (Randall), Perry Miller (Herbert W. Schneider), Van Wyck Brooks (Miller) and Alfred Kazin (F. O. Matthiessen). In this period the disciplinary distribution of articles was not markedly different from that of the past five years, nor was the ranking of fields by number of submissions. 5 Most important, the original interdisciplinary thrust of Lovejoy's agenda, if not his attachment to the spiritualist currency of "unit-ideas," has survived growing specialization.At first the history of ideas was pursued largely in the shadow of the history of philosophy; for in this field, according to Lovejoy, "is to be found the common seed-plot, the locus of initial manifestation in writing, of the greater number of the more fundamental and pervasive ideas, and especially of the ruling preconceptions, which manifest themselves in other regions of intellectual history." 6 Lovejoy's concern was always with concepts, especially "-isms," and yet in some ways he anticipated the "linguistic turn" of the later years of this century, pointing out in particular "the role of semantic shifts, ambiguities, and confusions, in the history of thought and taste," for "nearly all of the great catchwords have been equivocal--or rather, multivocal." 7 If ideas could be given stable definitions, they were nonetheless often, in the context of language, in conflict, even in the mind of a single thinker; for such was the "anomaly of knowledge." 8 So Lovejoy was at pains to distinguish the various meanings of [End Page 154] catch-words like "nature," "perfectibility," "romanticism," "progress," and "pragmatism," not to mention more inflammatory terms of wartime ideological debate.But... (shrink)

Philosophical discussions of species have focused on multicellular, sexual animals and have often neglected to consider unicellular organisms like bacteria. This article begins to fill this gap by considering what species concepts, if any, apply neatly to the bacterial world. First, I argue that the biological species concept cannot be applied to bacteria because of the variable rates of genetic transfer between populations, depending in part on which gene type is prioritized. Second, I present a critique of phylogenetic bacterial species, (...) arguing that phylogenetic bacterial classification requires a questionable metaphysical commitment to the existence of essential genes. I conclude by considering how microbiologists have dealt with these biological complexities by using more pragmatic and not exclusively evolutionary accounts of species. I argue that this pragmatism is not borne of laziness but rather of the substantial conceptual problems in classifying bacteria based on any evolutionary standard. (shrink)