We apply an online optimization process based on machine learning to the production of Bose-Einstein condensates. BEC is typically created with an exponential evaporation ramp that is optimal for ergodic dynamics with two-body s-wave interactions and no other loss rates, but likely sub-optimal for real experiments. Through repeated machine-controlled scientific experimentation and observations our ’learner’ discovers an optimal evaporation ramp for BEC production. In contrast to previous work, our learner uses a Gaussian process to develop a statistical model of the (...) relationship between the parameters it controls and the quality of the BEC produced. We demonstrate that the Gaussian process machine learner is able to discover a ramp that produces high quality BECs in 10 times fewer iterations than a previously used online optimization technique. Furthermore, we show the internal model developed can be used to determine which parameters are essential in BEC creation and which are unimportant, providing insight into the optimization process of the system. (shrink)

This paper examines the impact of ruralurban migrant and non-migrant groups. The selectivity of ruralurban migrants and rural non-migrants. Problems faced by migrants in assimilating into urban societies create mortality differentials between ruralchild mortality. Further research is needed to understand the health care needs of rural–urban migrants in order to inform the provision of appropriate health care.

In our paper we will try to connect the dynamics of community decline to individual responses. We will operate on two levels of reality. At the first level we will discuss the circumstances surrounding the recent decline of small communities in North Dakota. At the second level we will discuss how this decline affects small town residents' attitudes toward economic development. In the first level analysis we examine the thesis that the natural environment of community growth is economic exploitation; therefore, (...) the decline of resource-based communities is natural and inevitable. We discuss the circumstances surrounding the recent decline of small communities in North Dakota. At the second level analysis, we operate at the level at which life circumstances and environments are shaped by political-economic institutions that in turn shape the behavior and mentality of communities, families, and individuals. We hypothesize that residents of declining small towns deny their powerlessness and adapt to their situation through intense dedication to economic growth. We develop a series of hypotheses to test this thesis using data from the North Dakota Rural Life Poll. In our conclusion, we discuss implications for rural development practitioners working in declining small towns where this intense dedication to economic development in prevalent. (shrink)

BACKGROUND: Hallucinations and delusions that complicate Parkinson’s disease could lead to nursing home placement and are linked to increased mortality. Cognitive impairments are typically associated with the presence of hallucinations but there are no data regarding whether such a relationship exists with delusions. OBJECTIVE: We hypothesized that hallucinations would be associated with executive and visuospatial disturbance. An exploratory examination of cognitive correlates of delusions was also completed to address the question of whether they differ from hallucinations. METHODS: 144 PD subjects (...) completed a neuropsychological battery to assess cognition and the SAPS to examine psychosis. Correlational analyses assessed associations between hallucinations and delusions with cognitive domains. RESULTS: 48 subjects reported psychotic symptoms: 25 experienced hallucinations without delusions, 23 had symptoms dominated by delusions. Severity and/or number of hallucination subtypes were significantly correlated with lower scores in language, memory, attention, executive functioning, and visuospatial ability. Correlations with delusions were non-significant. Tests of differences in the size of the correlations between groups revealed a significant relationship between language and visuospatial performance with hallucinations. CONCLUSIONS: Cognitive correlates of hallucinations and delusions appear to be different in PD, suggesting distinct pathogenic mechanisms and possibly anatomical substrates. Hence, delusions may not share the same associations with dementia as hallucinations. Since this is a new finding, further studies will be needed to confirm our results. (shrink)

Florence Nightingale on Society and Politics, Philosophy, Science, Education and Literature, Volume 5 in the Collected Works of Florence Nightingale, is the main source of Nightingale’s work on the methodology of social science and her views on social reform. Here we see how she took her “call to service” into practice: by first learning how the laws of God’s world operate, one can then determine how to intervene for good. There is material on medical statistics, the census, pauperism and Poor (...) Law reform, the need for income security measures and better housing, on crime, gender and the family. Her comments on a new edition of The Dialogues of Plato are given, with their impact on the revision of the next edition. We see Nightingale’s condemnation of Plato’s “community of wives,” with her stirring approval of love (even outside marriage!), marriage and the family. In this volume also her views on natural science, education and literature are reported. Nightingale was an astute behind-the-scenes political activist. Society and Politics publishes (much of it for the first time) her correspondence with such leading political figures as Queen Victoria, W.E. Gladstone and J.S. Mill. There are notes and essays on public administration and personal observations on various members of royalty, prime ministers and ministers, and Indian viceroys. Nightingale’s support of the vote for women (contrary to much in the secondary literature) is here shown. Correspondence and notes on British general elections from 1834 to 1900 is reported, with letters to and for (Liberal) political candidates and fierce condemnations of Conservatives. Currently, Volumes 1 to 11 are available in e-book version by subscription or from university and college libraries through the following vendors: Canadian Electronic Library, Ebrary, MyiLibrary, and Netlibrary. (shrink)

‘Damn your principles, stick to your party!’ Benjamin Disraeli supposedly commanded. As Garnett’s short, lively history of the interplay of conservative thought and the ideology of the British Cons...

The paper is intended to show how little surprising it is that the speculations of M. Bergson and Mr. Russell, in practice, should work out in the same way; that people in the more advanced social movements of the present time should think to draw inspiration from both sources. The thesis is that there is something common to both the ways of thinking, that with this part of themselves they touch social movements, and that the feature in which they at (...) once touch social movements and touch each other is their realism. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:A Tale of Three Zoras:Barbara Johnson and Black Women WritersHortense J. Spillers (bio)Talking about Zora Neale Hurston is like approaching the Sphinx—so much riddle, so many faces, and all of it occurring on fairly high holy ground since Alice Walker's remarkable discovery a couple of decades ago.1 But Barbara Johnson's criticism cracks the code on Her Majesty and brings the sign vehicle—"Zora Neale Hurston"—to the table of juxtapositions and (...) comparisons. There is the iconic Hurston, whose positioning between the Harlem Renaissance2 and the post-World War II writers gives her a priority of status that marks the woman artist's entry into literary modernism. The latter, in its variety of contexts and alignments, opened the way to certain experimental forms for these writers and might not have been completed as a systematic gesture before the late sixties and early seventies, when this generation of practitioners was free to create antiheroic figures and to probe the limits of representability. In short, with Zora Neale Hurston a window is pried open, a breeze blows through, and by the time of Toni Morrison's Beloved, an opening has become a prospect, a landscape of vistas of possibility. We can think of Hurston, then, as an enabler, who was not particularly encouraged by the literary politics of her age, from first to last; whether by the "maledom" of Harlem Renaissance avenues to reward and achievement, or by the paradigm shift of race politics in the 1950s,3 Hurston seems to have been equipped with the uncanny ability to create a kind of chaos, to behave outside the parameters of fashion, and to create dimensions of the mythical about her as she modeled versions of self.In her role as classically trained anthropologist and folklorist, Hurston is considered today one of the major theoreticians of black culture.4 Her collections of lore, a [End Page 94] motherlode of a southern-centered orality,5 of the countryside, are fruitfully poised against the displaced metaphysical traditions of discourse that we especially associate with figures like Alain Locke and W. E. B. DuBois.6 As it now appears, the oppositional currents that run between the Hurstonian and the DuBoisian figurations have yet to be reconciled: the latter is text-based, and the former exceeds the abiding centrality of the word. Barbara Johnson argues in A World of Difference that Hurston "tried to explain the difference between a reified 'art' and a living culture in which distinctions between spectator and spectacle, rehearsal and performance, experience and representation are not fixed" [159]. For Hurston, folklore was "'the arts of the people before they find out that there is such a thing as art.'" For Hurston, unlike DuBois, for example, black culture was not a project in the modality of Bildung, or the Hegelian notion, but, rather, a repertoire of gestures that might be said to belong to a second skin—the kinetic thing that is done or said.From our current perspective, what Hurston called "folklore" and what offered the occasion for the ethnographic foray might be given other names, though renaming these acts and gestures of the everyday does not make it any easier to reconcile the conceptual split in black culture theory between textuality and orality, or between "urban" and "countryside." But all of these locutions have been essentially eviscerated by radical changes in the availability and transmission of consumer goods that have rendered US local and indigenous cultures virtually indistinguishable from Jackson, Mississippi to Boston, Massachusetts. Take any interstate network across the land, east to west, or north to south: between McDonald's and the food/gas mart, scattered along ten- to twenty-mile sequences of roadway, one is quite astonished at the sameness and homogeneity of motifs that have translated particularity into an item of commerce and exchange. At one time, the critics were calling this outcome the postmodern flow, but my own hunch is that this apparent repetition and replication of the same are riddled with a variety of timbres and accents, still, that the Hurston ear was so sharp to articulate and define six decades ago. And in that intricate choreography between the life... (shrink)

"Contemporary Mind - Some Modern Answers" is a fantastic collection of essays by English science writer John W. Sullivan. They deal with a range of subjects, ranging from mysticism and immortality to the relationship between science and art. John William Navin Sullivan (1886 - 1937) was a literary journalist and popular science writer most famous for his study of Beethoven. He is also responsible for having written some of the earliest non-technical accounts of Einstein's General Theory of Relativity, and he (...) was acquainted with many important writers in London in the 1920s, including John Middleton Murry, Aldous Huxley, Wyndham Lewis, Aleister Crowley and T. S. Eliot. Other notable works by this author include "Aspects of Science" (1923), "Aspects of Science: Second Series" (1926), and An Outline of Modern Knowledge (1931). Contents include: "The Balanced Life," "The Problem of Suffering," "The Necessity of Mysticism," "Human Immortality," "A Dissertation on Beethoven," "The Scientific Outlook," "A Dissertation on Maxwell," "New Principles," "A Dissertation on Newton," "Science and Art," "Mathematics and Culture," "Sir Josiah Stamp," "Mr. Aldous Huxley," etc. Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with the original text and artwork. (shrink)

To what extent is time similar to space? in this paper it is shown that the claim, Made by richard taylor among others, That time and space are "radically alike" is unfounded. This claim can be supported only by employing the notion of temporal parts. It is shown that if objects are regarded as having temporal parts as well as spatial parts, Then serious disanalogies exist between time and space. Furthermore, If objects are said to have temporal parts, Then it (...) must also be held that time is in a very important sense "prior" to space and this that time and space are not only unlike in certain respects but indeed are radically dissimilar. Moreover, The so-Called "manifold theory of time" necessarily makes use of the notion of temporal parts and therefore should hold that time and space are quite unlike. But since an important part of the manifold theory of time is the claim that time and space are very much alike, This theory is to that extent not satisfactory. (shrink)

For over a century and certainly since single-unit recordings in the 1960s the theory of perception that has dominated thinking and research, with implications for the understanding of all other cognitive domains, entails a neocortical process of progressive assembly from V-1 to V-4 leading to object-construction and secondary spatial updating and recognition. In recent years, however, difficulties with the theory have emerged in neurophysiological research though a compelling alternative has not been forcefully argued. It is the purpose of this paper (...) to review the main features of the microgenetic account of perception, which inverts standard theory 180 degrees, and aligns the perceptual process with patterns of evolutionary growth. This theory developed on clinical study, and perhaps for this reason has not received sufficient attention, in mainstream cognitive and affective neuroscience, though it provides an account not only of perception but of stages in memory, imagery, the present moment, and the mind/brain state. (shrink)

Is logic normative for reasoning? In the wake of work by Gilbert Harman and John MacFarlane, this question has been reduced to: are there any adequate bridge principles which link logical facts to normative constraints on reasoning? Hitherto, defenders of the normativity of logic have exclusively focussed on identifying adequate validity bridge principles: principles linking validity facts—facts of the form 'gamma entails phi'—to normative constraints on reasoning. This paper argues for two claims. First, for the time being at least, Harman’s (...) challenge cannot be surmounted by articulating validity bridge principles. Second, Harman’s challenge can be met by articulating invalidity bridge principles: principles linking invalidity facts of the form 'gamma does not entail phi' to normative constraints on reasoning. In doing so, I provide a novel defence of the normativity of logic. (shrink)