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vol VII: Notes

2016

Notes

Sunday 21 February 2016 - Saturday 27 February 2016

[Notebook: DB 80: Cosmic plumbing]

[page 33]

Sunday 21 February 2016

Sitting next to the Stuart Highway enjoying the bush flies and watching loads of civilization going past in big trucks.

Binary coding: Where logic meets arithmetic. Gödel: where

[page 34]

arithmetic begins to talk about itself and uncertainty and creativity begin.

Consistency is local. To have > 2 entities on the same spacelike surface, ie p and ~p, we need complexity, ie fermionic states. The repeated operation of the not operator in spacetime slices gives us the complex structure of the observed universe, assisted by permutations of the orderings of particles. (?)

We may think of Fermi particle as embodied software, and therefore massive and travelling at < c. Bose particles may or may not have mass and so various lifetimes ?

Monday 22 February 2016

Truro - Adelaide. My mother is dying, with dementia, and all I can do is hold her hand. She is repeating all the words of her Catholic childhood repeatedly Jesus, Jesus . . . Mary, Mary Mary . . . Sacred Heart . . .. What we learn first we seem to forget last. One can easily understand the need to believe in eternal life in the face of death, and the role of priests is heavily loaded with duties surrounding birth, reproduction, marriage and death.

Tuesday 23 February 2016

Hiaasen Sick Puppy chapter 29 page 473: ' "Let it happen, son" said with such striking serenity that Twilly understood, finally, that

[page 35]

Nature finally settles all scores, sets all things straight.' Hiaasen: Sick Puppy

Wednesday 24 February 2016
Thursday 25 February 2016
Friday 26 February 2016

Maxwell's equations are local. Maxwell's equations - Wikipedia

Saturday 27 February 2016

Enthusiasm is neither evidence nor insight. Watched Spotlight last night, a documentary on Boston Globe's exposure of child sexual abuse by the Catholic clergy of Boston. This reinforced my view of the difficulty of reforming the Church. Correcting its stance on abuse will be relatively easy compared to correcting the false views of God and the world which form its theoretical foundation. As ever I feel that hard work and insight are necessary to achieve this end, but, unless I go as seriously viral as, say, Einstein, it will not happen in my lifetime. But I am quite happy to keep at it. Spotlight (film) - Wikipedia

The last few weeks I have been preoccupied with my ageing and dying parents, and have seen clearly how attached my mother is to the Catholic story of sin, redemption and eternal life. As a product this is hard to beat, particularly since dying is one of the least attractive features of 'this vale of tears'. It is hard to convince people of the beauty of the divine world when

[page 36]

pain, disease and violence are so much in evidence. A lot of the psychological evidence for heaven and hell is self fulfilling prophecy, particularly the need for monarchical authority to create hell on earth for those with whom it disagrees, the heretics to be tortured and murdered and the sinners to be left to suffer the pains of their sins. The whole system has to be turned around so that the beauty and pleasure of the divine world becomes self evident and the pains are seen as indicators of errors to be corrected.

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Further reading

Books

Click on the "Amazon" link below each book entry to see details of a book (and possibly buy it!)

Castaneda, Carlos, The Teachings of Don Juan, A Yaqui Way of Knowledge, 1968  
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Dawkins, Richard, The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe without Design, Penguin/Pelican 1996 Preface: '[Darwinism] is, indeed a remarkably simple theory; . . . In essence it amounts simply to the idea that non-random reproduction where there is hereditary variation, has consequences that are far reaching if there is time for them to be cumulative . . . ' 
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Dawkins, Richard, The Selfish Gene , Oxford UP 1976 Amazon: Editorial review: 'Inheriting the mantle of revolutionary biologist from Darwin, Watson, and Crick, Richard Dawkins forced an enormous change in the way we see ourselves and the world with the publication of The Selfish Gene. Suppose, instead of thinking about organisms using genes to reproduce themselves, as we had since Mendel's work was rediscovered, we turn it around and imagine that "our" genes build and maintain us in order to make more genes. That simple reversal seems to answer many puzzlers which had stumped scientists for years, and we haven't thought of evolution in the same way since.' Rob Lightner 
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Dawkins, Richard, Climbing Mount Improbable, W. W. Norton & Company 1997 Amazon editorial review: 'How do species evolve? Richard Dawkins, one of the world's most eminent zoologists, likens the process to scaling a huge, Himalaya-size peak, the Mount Improbable of his title. An alpinist does not leap from sea level to the summit; neither does a species utterly change forms overnight, but instead follows a course of "slow, cumulative, one-step-at-a-time, non-random survival of random variants" -- a course that Charles Darwin, Dawkins's great hero, called natural selection. Illustrating his arguments with case studies from the natural world, such as the evolution of the eye and the lung, and the coevolution of certain kinds of figs and wasps, Dawkins provides a vigorous, entertaining defense of key Darwinian ideas.' 
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Genesis, and Alexander Jones (editor), in The Jerusalem Bible, Darton Longman and Todd 1966 'In the beginning God created the heavens and the earth. Now the earth was a formless void, there was darkness over the deep, and God's spirit hovered over the water.' (I, 1-2) 
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Hiaasen, Carl, Sick Puppy, Warner Vision Books 2001 'Independently wealthy eco-terrorist Twilly Spree teaches a flagrant litterbug a lesson--and leaves the offender's precious Range Rover swarming with hungry dung beetles. When he discovers the litterer is one of the most powerful political fixers in Florida, the real Hiaasen-style fun begins.' 
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Higman, Bryan, Applied Group-Theoretic and Matrix Methods, Dover Publications Jacket: '... This work, a comprehensive, thoroughly reliable exposition of the basic ideas of group theory (realized through matrices) and its applications to various areas of physics and chemistry, systematically covers this important ground for the first time. ... Although [it] deals basiclaly with advanced level material, the unusually clear exposition provides much valuable insight and fruitful suggestion for student and specialist alike. Chemists, physicists, mathematicians, and others who would like an idea of the applications and methods of group and matrix theory in the physical sciences will profit greatly from this book. ...'back
Lonergan, Bernard J F, Insight : A Study of Human Understanding (Collected Works of Bernard Lonergan : Volume 3), University of Toronto Press 1992 '. . . Bernard Lonergan's masterwork. Its aim is nothing less than insight into insight itself, an understanding of understanding' 
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Lonergan, Bernard J F, Method in Theology, University of Toronto Press for Lonergan Research Institute 1996 Introduction: 'A theology mediates between a cultural matrix and the signifcance and role of religion in that matrix. ... When the classicist notion of culture prevails, theology is conceived as a permanent achievement, and then one discourses on its nature. When culture is conceived empirically, theology is known to be an ongoing process, and then one writes on its method. Method ... is a framework for collaborative creativity.' 
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Marais, Eugene, and (translated by Winifred de Kok, The Soul of the White Ant, Penguin Books 1973 Jacket: 'Is nature a state of chaos or a predetermined pattern of existence? Is a termite colony a collection of individuals or a single, unified organism working toward a single aim? In this utterly absorbing study of a termite colony, Eugène Marais, the brilliant South African journalist, lawyer poet and natural scientist poses these intriguing questions. Ten years of close observation led him to some startling conclusions - with disturbing social implications.' 
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Merton, Robert C, Continuous Time Finance, Wiley-Blackwell 1992 Amazon Product Description 'Robert C. Merton's widely used text provides an overview and synthesis of finance theory from the perspective of continuous-time analysis. It covers individual financial choice, corporate finance, financial intermediation, capital markets, and selected topics on the interface between private and public finance. For this revised edition a new section on managing university endowments has been added. The book begins with a foreword by Paul Samuelson.' 
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Partterson, Scott, The Quants: How a New Breed of Math Whizzes Conquered Wall Street and Nearly Destroyed It, Crown Business (February 2, 2010) Language: English ISBN-10: 0307453375 ISBN-13: 978-0307453372 2010 Amazon Editorial Reviews “Scott Patterson has the ability to see things you and I don’t notice. In The Quants he does an admirable job of debunking the myths of black box traders and provides a very entertaining narrative in the process.” Nassim Nicholas Taleb 
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Streater, Raymond F, and Arthur S Wightman, PCT, Spin, Statistics and All That, Princeton University Press 2005 Amazon product description: ' PCT, Spin and Statistics, and All That is the classic summary of and introduction to the achievements of Axiomatic Quantum Field Theory. This theory gives precise mathematical responses to questions like: What is a quantized field? What are the physically indispensable attributes of a quantized field? Furthermore, Axiomatic Field Theory shows that a number of physically important predictions of quantum field theory are mathematical consequences of the axioms. Here Raymond Streater and Arthur Wightman treat only results that can be rigorously proved, and these are presented in an elegant style that makes them available to a broad range of physics and theoretical mathematics.' 
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Suzuki, Daisetz Teitaro, Studies in Zen, Rider and Co, for the Buddhist Society 1953 Studies in Zen is the eigth volume of the collected works of DT Suzuki. Jacket: 'These studies, packed with the jewels of Zen wisdom, and written with unrivalled knowledge, will appeal to all who seek a deeper understanding of Eastern ways of thought and spiritual achievement. For Zen is unique in the whole range of human understanding, and Dr. Suzuki is accepted as its greatest exponent. 
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Veltman, Martinus, Diagrammatica: The Path to the Feynman Rules, Cambridge University Press 1994 Jacket: 'This book provides an easily accessible introduction to quantum field theory via Feynman rules and calculations in particle physics. The aim is to make clear what the physical foundations of present-day field theory are, to clarify the physical content of Feynman rules, and to outline their domain of applicability. ... The book includes valuable appendices that review some essential mathematics, including complex spaces, matrices, the CBH equation, traces and dimensional regularization. ...' 
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von Neumann, John, and Robert T Beyer (translator), Mathematical Foundations of Quantum Mechanics, Princeton University Press 1983 Jacket: '. . . a revolutionary book that caused a sea change in theoretical physics. . . . JvN begins by presenting the theory of Hermitean operators and Hilbert spaces. These provide the framework for transformation theory, which JvN regards as the definitive form of quantum mechanics. . . . Regarded as a tour de force at the time of its publication, this book is still indispensable for those interested in the fundamental issues of quantum mechanics.' 
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Wilson, Edward Osborne, Sociobiology: The new synthesis, Harvard UP 1975 Chapter 1: '... the central theoretical problem of sociobiology: how can altruism, which by definition reduces personal fitness, possibly evolve by natural selection? The answer is kinship. ... Sociobiology is defined as the systematic study of the biological basis of all social behaviour. ... It may not be too much to say that sociology and the other social sciences, as well as the humanities, are the last branches of biology waiting to be included in the Modern Synthesis.'  
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Woolf, Virginia, A Room of One's Own, Granada 1977 Amazon editorial review: 'Surprisingly, this long essay about society and art and sexism is one of Woolf's most accessible works. Woolf, a major modernist writer and critic, takes us on an erudite yet conversational--and completely entertaining--walk around the history of women in writing, smoothly comparing the architecture of sentences by the likes of William Shakespeare and Jane Austen, all the while lampooning the chauvinistic state of university education in the England of her day. When she concluded that to achieve their full greatness as writers women will need a solid income and a privacy, Woolf pretty much invented modern feminist criticism.' 
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Papers
Burkard, Guido, "Splitting States on a Chip", Science, 327, 5966, 5 February 2010, page 650-51. 'The different colors on the surface of a soap bubble arise from the interference of light waves reflecting from the outer and inner surface of the liquid film. As the thickness of the film varies, so will the wavelength of light that undergoes constructive interference and remains visible. This effect can be used to measure small changes in distance if a single coherent beam is used (see the figure, panel A) through the formation of interference fringes. According to quantum mechanics, even material particles such as electrons behave like waves, and indeed, interference can be observed when the electric charge associated with an electron travels along two arms of a ring-like interferometer in the Aharonov-Bohm effect. In addition to their charge, electrons also have two distinguishable spin states, spin-up and spin-down. On page 669 of this issue, Petta et al. (1) demonstrate beam splitting and interferometry for the spin degrees of freedom of two electrons on a semiconductor chip. In this system, the phase of partial waves is associated with spin direction. Nuclear spins, whose coupling to electrons can destroy phase coherence, actually help control spin-state evolution.'. back
Links
Alan Greenspan, Greenspan on Sources of Financial Crisis, 'It was the failure to properly price such risky assets that precipitated the crisis. In recent decades, a vast risk management and pricing system has evolved, combining the best insights of mathematicians and finance experts supported by major advances in computer and communications technology. A Nobel Prize was awarded for the discovery of the pricing model that underpins much of the advance in derivates markets. This modern risk management paradigm held sway for decades. The whole intellectual edifice, however, collapsed in the summer of last year because the data inputted into the risk management models generally covered only the past two decades, a period of euphoria. Had instead the models been fitted more appropriately to historic periods of stress, capital requirements would have been much higher and the financial world would be in far better shape today, in my judgment.' back
Amir E Khadani and Andrew W Lo, What Happened to the Quants in 2007, 'Abstract During the week of August 6, 2007, a number of high-profile and highly successful quantitative long/short equity hedge funds experienced unprecedented losses. Based on empir-ical results from TASS hedge-fund data as well as the simulated performance of a specific long/short equity strategy, we hypothesize that the losses were initiated by the rapid un-winding of one or more sizable quantitative equity market-neutral portfolios. Given the speed and price impact with which this occurred, it was likely the result of a sudden liquidation by a multi-strategy fund or proprietary-trading desk, possibly due to margin calls or a risk reduction. These initial losses then put pressure on a broader set of long/short and long-only equity portfolios, causing further losses on August 9th by triggering stop-loss and de-leveraging policies. A significant rebound of these strategies occurred on August 10th, which is also consistent with the sudden liquidation hypothesis. This hypothesis suggests that the quantitative nature of the losing strategies was incidental, and the main driver of the losses in August 2007 was the firesale liquidation of similar portfolios that happened to be quantitatively constructed. The fact that the source of dislocation in long/short equity portfolios seems to lie elsewhere—apparently in a completely unrelated set of markets and instruments—suggests that systemic risk in the hedge-fund industry may have increased in recent years.' back
Apple Inc., Mac Dev Center: Applescript Language Guide: AppleScript Fundamentals, This chapter describes basic concepts that underlie the terminology and rules covered in the rest of this guide. back
Archimedean property - Wikipedia, Archimedean property - Wikipedia, the free encyclopedia, 'In abstract algebra, the Archimedean property, named after the ancient Greek mathematician Archimedes of Syracuse, is a property held by some ordered or normed groups, fields, and other algebraic structures. Roughly speaking, it is the property of having no infinitely large or infinitely small elements (i.e. no nontrivial infinitesimals). The notion arose from the theory of magnitudes of Ancient Greece; it still plays an important role in modern mathematics such as David Hilbert's axioms for geometry, the theory of ordered groups, the one of ordered fields and the one of local fields. An algebraic structure in which any two non-zero elements are comparable, in the sense that neither of them is infinitesimal with respect to the other, is said to be Archimedean. A structure which has a pair of non-zero elements, one of which is infinitesimal with respect to the other, is said to be non-Archimedean.' back
Benedict Carey, Evidence That Little Touches Do Mean So Much, '“We think that humans build relationships precisely for this reason, to distribute problem solving across brains,” said James A. Coan, a a psychologist at the University of Virginia. “We are wired to literally share the processing load, and this is the signal we’re getting when we receive support through touch." back
Black-Scholes - Wikipedia, Black-Scholes - Wikipedia, the free encyclopedia, 'http://en.wikipedia.org/wiki/Black%E2%80%93Scholes' back
Blackfriars Priory School, Blackfriars - Catholic School for boys in Adelaide, South Australia, 'Our Mission Is founded on our stewardship of God’s creation to reach its full potential. Blackfriars Priory School is a Catholic Dominican school for boys which promotes the spiritual, intellectual, physical and social development of each member of the school community. It aims, in co-operation with parents, to engage students in an educational experience within the context of a Christian community which is fulfilling and rewarding.' back
Bose-Einstein statistics - Wikipedia, Bose-Einstein statistics - Wikipedia, the free encyclopedia, 'In statistical mechanics, Bose–Einstein statistics (or more colloquially B–E statistics) determines the statistical distribution of identical indistinguishable bosons over the energy states in thermal equilibrium.' back
Caroline Cusack, Did the Crusades lead to Islamic State?, back
Department of Business, Economics, Statistics and Informatics at Örebro University, EconPapers: Papers on Economics of Religion, 'EconPapers use the RePEc bibliographic and author data, providing access to the largest collection of online Economics working papers and journal articles. The majority of the full text files are freely available, but some (typically journal articles) require that you or your organization subscribe to the service providing the full text file. RePEc is a distributed data set residing in over 400 archives operated by research organizations, academic departments and publishers. EconPapers would not be possible without the effort of the maintainers of these archives.' back
Diffusion - Wikipedia, Diffusion - Wikipedia, the free encyclopedia, 'Diffusion is a time-dependent process, constituted by random motion of given entities and causing the statistical distribution of these entities to spread in space. The concept of diffusion is tied to notion of mass transfer, driven by a concentration gradient. The concept of diffusion emerged in the physical sciences. The paradigmatic examples were heat diffusion, molecular diffusion and Brownian motion. Their mathematical description was elaborated by Joseph Fourier in 1822, Adolf Fick in 1855 and by Albert Einstein in 1905.' back
Dirac delta function - Wikipedia, Dirac delta function - Wikipedia, the free encyclopedia, 'The Dirac delta or Dirac's delta is a mathematical construct introduced by theoretical physicist Paul Dirac. Informally, it is a function representing an infinitely sharp peak bounding unit area: a function ?(x) that has the value zero everywhere except at x = 0 where its value is infinitely large in such a way that its total integral is 1. In the context of signal processing it is often referred to as the unit impulse function. Note that the Dirac delta is not strictly a function. While for many purposes it can be manipulated as such, formally it can be defined as a distribution that is also a measure.' back
Dominicans, Dominicans: Order of Preachers, 'WWW.OP.ORG is the official international Web site of the Order of Preachers (the Dominicans). The branches of the Dominican family are multiple: brothers, contemplative nuns, congregations of contemplative and apostolic sisters, lay persons in fraternities or secular institutes, secular priests in fraternities. "Each one has its own character, its autonomy. However by taking part in the charism of saint Dominic, they share between them a single vocation to be preachers in the Church (Chapter of Mexico, 1992)."' back
Emanuel Derman and Paul Wilmott, Financial Modeler's Manifesto, 'The Modelers' Hippocratic Oath ~ I will remember that I didn't make the world, and it doesn't satisfy my equations. ~ Though I will use models boldly to estimate value, I will not be overly impressed by mathematics. ~ I will never sacrifice reality for elegance without explaining why I have done so. ~ Nor will I give the people who use my model false comfort about its accuracy. Instead, I will make explicit its assumptions and oversights. ~ I understand that my work may have enormous effects on society and the economy, many of them beyond my comprehension.' back
Emer O'Toole, What hope has Pope Francis offered to women exposed to Zika? None, 'Pope Francis’s media persona is dangerous. In his attempts to cultivate an image of a moderate church engaged with realities of sexuality and gender, the Pope obscures the homophobia and misogyny at the core of Catholicism. His recent obfuscation on contraception and Zika does nothing to help Latin American women, and serves to distract from the horrendous repercussions of Catholic teaching on abortion for women and the poor.' back
Fermi-Dirac statistics - Wikipedia, Fermi-Dirac statistics - Wikipedia, the fre encyclopedia, 'In statistical mechanics, Fermi-Dirac statistics is a particular case of particle statistics developed by Enrico Fermi and Paul Dirac that determines the statistical distribution of fermions over the energy states for a system in thermal equilibrium. In other words, it is the distribution of the probabilities that each possible energy levels is occupied by a fermion. back
George Makari, Notes From Psychiaty's Battle Lines, 'Consider this: Like most clinicians, I am eager for scientific progress, something new that will yield more clarity and provide my patients with faster or deeper relief. However, as I take stock of a new “neuroenhancer,” or the latest genetic correlation that may point to the cause of an illness, or a suddenly popular diagnosis, the historian in me senses ghosts beginning to stir.' back
Hopfield net - Wikipedia, Hopfield net - Wikipedia, the free encyclopedia, 'A Hopfield net is a form of recurrent artificial neural network invented by John Hopfield. Hopfield nets serve as content-addressable memory systems with binary threshold units. They are guaranteed to converge to a local minimum, but convergence to one of the stored patterns is not guaranteed.' back
Liam Fox, Cyclone Winston: Village built by Australian man for Fiji's poor survives unscathed, 'Of the 230 houses, none sustained any significant damage after Cyclone Winston swept through the Fiji islands. The man who designed the houses, Peter Drysdale, explained why the houses were so strong by pointing to the roof of one of the structures. "Have a look at this connecting roof. You can see the strapping details. We use about 14 coils of steel strapping in every house," he said.' back
Little Blue Lake - Wikipedia, Little Blue Lake - Wikipedia, the free encyclopedia, 'Little Blue Lake is a water-filled doline located near Mount Schank in South Australia. It is notable locally as a swimming hole and nationally as a cave diving site. It is managed by the District Council of Grant and has been developed as a recreational and tourism venue.' back
Lourdes - Wikipedia, Lourdes - Wikipedia, the free encyclopedia, 'Lourdes (Occitan name Lorda) is a town and commune situated in the Southwest of the Hautes-Pyrénées department, lying in the first Pyrenean foothills, in southwestern France. , , , Lourdes was originally a small unremarkable market town lying in the foothills of the Pyrenees. At that time the most prominent feature was the fortified castle which rises up from the centre of the town on a rocky escarpment. Following the claims that there were apparitions of Our Lady of Lourdes to Bernadette Soubirous in 1858, Lourdes has developed into a major place of Christian pilgrimage. Today Lourdes has a population of around 15,000 inhabitants but is able to take in some 5,000,000 pilgrims and tourists every season. Lourdes has the second greatest number of hotels in France after Paris with about 270 establishments.' back
Lourdes-france.org, Lourdes france, le site officiel des Santuaires vous acceuille, Site internet de Sanctuaires Notre-Dame de Lourdes back
Maxwell-Boltzmann statistics - Wikipedia, Maxwell-Boltzmann statistics - Wikipedia, the free encyclopedia, 'In statistical mechanics, Maxwell–Boltzmann statistics describes the statistical distribution of material particles over various energy states in thermal equilibrium, when the temperature is high enough and density is low enough to render quantum effects negligible.' back
Maxwell's equations - Wikipedia, Maxwell's equations - Wikipedia, the free encyclopedia, 'In classical electromagnetism, Maxwell's equations are a set of four equations that describe the properties of the electric and magnetic fields and relate them to their sources, charge density and current density. Maxwell used the equations to show that light is an electromagnetic wave.' back
Norma Costello, Irish women sawn open during childbirth seek justive, 'Dublin, Ireland - Women who had their pelvises broken in Irish hospitals have been failed by a state redress scheme, according to lawyers and activists. Watch: Ireland accused of whitewashing childbirth scandal Symphysiotomy, a brutal procedure that involved slicing through the cartilage and ligaments of a pelvic joint during childbirth, and pubiotomy, an even more extreme form in which the bone of the pelvis was sawn apart, was carried out in Ireland centuries after it was abandoned elsewhere, leaving women with lifelong disabilities, incontinence and chronic pain.' back
Paul Wilmott, The Use, Misuse and Abuse of Mathematics in Finance, 'Abstract The once ‘gentlemanly’ business of finance has become a game for ‘players.’ These players are increasingly technically sophisticated, typically having Ph.D.s in a numerate discipline. The roots of this transformation have their foundation in the 1970s. Since then the financial world has become more and more complex. Unfortunately, as the mathematics of finance reaches higher levels so the level of common sense seems to drop. There have been some well publicised cases of large losses sustained by companies because of their lack of understanding of financial instruments. In this article we look at the history of financial modelling, the current state of the subject and possible future directions. It is clear that a major rethink is desperately required if the world is to avoid a mathematician-led market meltdown.' back
Quantum fluctuations - Wikipedia, Quantum fluctuations - Wikipedia, the free encyclopedia, 'In quantum physics, a quantum fluctuation is the temporary change in the amount of energy in a point in space, arising from Werner Heisenberg's uncertainty principle.' back
Rod Tucker, The NBN: why its slow, expensive and obsolete, 'If in 2013 the Coalition had simply allowed NBN Co to get on with the job of rolling out its fibre-to-the-premises NBN, rather than changing it to an inferior multi-technology mix, it may well have ended up spending less money and delivered Australia a much better network. The Coalition sold the Australian public a product that was supposed to be fast, one-third the cost and arrive sooner than what Labor was offering us. Instead the Coalition’s NBN will be so slow that it is obsolete by the time it’s in place, it will cost about the same as Labor’s fibre-to-the-premises NBN, and it won’t arrive on our doorsteps much sooner.' back
Scott Patterson and Aaron Luchetti, Boom in 'Dark Pool' Trading Networks is Causing headaches on Wall Street, 'When Cheryl Cargie, head trader at Ariel Investments LLC in Chicago, decided last month to buy 1.3 million shares of a midcap stock listed on the New York Stock Exchange, she spread orders among several "dark pools," the secretive electronic trading networks that match buyers and sellers anonymously. The pools are booming in popularity as big institutional investors look for ways to trade blocks of stock without triggering ripples in the share price, as can happen on traditional stock markets such as the NYSE and Nasdaq Stock Market. But all that darkness is causing nightmares on Wall Street.' back
Space Shuttle Challenger disaster - Wikipedia, Space Shuttle Challenger disaster - Wikipedia, the free encyclopedia, 'The Space Shuttle Challenger disaster occurred in the United States, over the Atlantic Ocean, off the coast of central Florida, at 11:39 a.m. EST (16:39 UTC) on January 28, 1986. The Space Shuttle Challenger disintegrated 73 seconds into its flight after an O-ring seal in its right solid rocket booster (SRB) failed at liftoff. The seal failure caused a breach in the SRB joint it filled, allowing a flare to reach the outside and impinge upon the adjacent attachment hardware and external fuel tank. The SRB breach flare led to the separation of the right-hand SRB and the structural failure of the external tank. Aerodynamic forces promptly broke up the orbiter. The shuttle was destroyed and all seven crew members were killed.' back
Spotlight (film) - Wikipedia, Spotlight (film) - Wikipedia, the free encyclopedia, 'Spotlight is a 2015 American biographical drama film directed by Tom McCarthy and written by McCarthy and Josh Singer.[4][5] The film follows The Boston Globe's "Spotlight" team, the oldest continuously operating newspaper investigative journalist unit in the United States,[6] and its investigation into cases of widespread and systemic child sex abuse in the Boston area by numerous Roman Catholic priests. It is based on a series of stories by the actual Spotlight Team that earned The Globe the 2003 Pulitzer Prize for Public Service.' back
Thanu Padmanabhan, Thermodynamical Aspects of gravity: New Insights, '(Submitted on 26 Nov 2009 (v1), last revised 19 Jan 2010 (this version, v2)) The fact that one can associate thermodynamic properties with horizons brings together principles of quantum theory, gravitation and thermodynamics and possibly offers a window to the nature of quantum geometry. This review discusses certain aspects of this topic concentrating on new insights gained from some recent work. After a brief introduction of the overall perspective, Sections 2 and 3 provide the pedagogical background on the geometrical features of bifurcation horizons, path integral derivation of horizon temperature, black hole evaporation, structure of Lanczos-Lovelock models, the concept of Noether charge and its relation to horizon entropy. Section 4 discusses several conceptual issues introduced by the existence of temperature and entropy of the horizons. In Section 5 we take up the connection between horizon thermodynamics and gravitational dynamics and describe several peculiar features which have no simple interpretation in the conventional approach. The next two sections describe the recent progress achieved in an alternative perspective of gravity. In Section 6 we provide a thermodynamic interpretation of the field equations of gravity in any diffeomorphism invariant theory and in Section 7 we obtain the field equations of gravity from an entropy maximization principle. The last section provides a summary.' back
Timothy W Jones, Safe Schools Coalition: what is the Christian Right afraid of?, 'In developing their politics of “family values”, the Christian Right actually invented a tradition: that of the timeless, nuclear family. This 1950s “mum, dad and 2.5 kids” model is structured around a heterosexual marriage with the husband in authority. Despite this being a minority structure in the history of families, the new Christian Right presents this as the only “natural” family structure. It then positions it as the foundation of society and of civilisation.' back
www.op.org, Dominicans : Order of Preachers, ..., '... the official international Web site of the Order of Preachers (the Dominicans). The branches of the Dominican family are multiple: brothers, contemplative nuns, congregations of contemplative and apostolic sisters, lay persons in fraternities or secular institutes, secular priests in fraternities.' back

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