It is common to view "the free market" and "government regulation" as opposites. This way of framing policy and legal questions suggests that regulation inevitably deprives us of freedom. But another word for "regulation" is "the rule of law." The opposition of markets and regulation makes it easy to forget that markets are defined by a legal framework that sets minimum standards for social and economic relationships. We can better appreciate the legal framework of markets by remembering that regulation was needed to abolish feudal relationships, to prohibit relations of servitude, slavery, and racial inequality, and to spread access to property by redistributing property rights from lords to tenants and slave holders to slaves. Libertarian calls for deregulation fail to recognize the extent to which regulation was needed historically to create a society of free and equal persons with widely dispersed property ownership. Regulations are also needed to define property rights and to protect individuals from fraud and unfair or deceptive practices in market transactions. Libertarian ideals actually support a great deal of supposedly liberal legislation. Further, Americans demand regulations that go far beyond those championed by libertarians, as evidenced by the consumer protection laws and myriad regulatory statutes in force in every state, as well as in federal law. Although Americans tend to talk like "small-government" libertarians, we legislate like liberals. Minimum standards regulations do not deprive us of freedom; rather, law promotes both freedom and democracy by outlawing social and economic relationships that are "subprime" because they fall below the minimum standards acceptable for human relationships in a free and democratic society. It is time we acknowledged the regulations we too often take for granted. If we do that, we can debate what those laws should be, rather than focusing on a false debate about whether they should exist at all.


An autoregressive-ARCH model with possible exogeneous variables is treated. We estimate the conditional volatility of the model by applying feedforward networks to the residuals and prove consistency and asymptotic normality for the estimates under the rate of feedforward networks complexity. Recurrent neural networks estimates of GARCH and value-at-risk is studied. We prove consistency and asymptotic normality for the recurrent neural networks ARMA estimator under the rate of recurrent networks complexity. We also overcome the estimation problem in stochastic variance models in discrete time by feedforward networks and the introduction of a new distributions on the innovations. We use the method to calculate market risk such as expected shortfall and Value-at risk. We tested this distribution together with other new distributions on the GARCH family models against other common distributions on the financial market such as Normal Inverse Gaussian, normal and the Student's t- distributions. As an application of the models, some German stocks are studied and the different approaches are compared together with the most common method of GARCH(1,1) fit.


Tsiang, Sarah. Warriors and Wailers: One Hundred Ancient Jobs You Might Have Relished or Reviled. Illus. M. Newbigging. Toronto: Annick Press, 2012. Print. I did not confirm that there really are 100 jobs in this colourful and well-illustrated little book but there certainly are many, and a wide variety. The index does list the title's "wailer" but not "warrior." In fact, there are several warrior-ish jobs such as watchtower guard, female warrior, military service-conscripted, Shaolin warrior monk, and even a few illegal warrior-like positions (e.g., assassin, pirate admiral, and rebel leader). This book is one in a series of "jobs in history" books by Annick Press but is not merely a formulaic adaptation. These really are ancient Chinese jobs and many probably did not exist elsewhere (e.g., pearl maker, jade worker, lacquer worker, acupuncturist, or bone diviner). It also seems the jobs are arranged in an appropriate order, reflecting decreasing rank and honour from the Emperor and imperial jobs, through scholars and servants, to peasant farmers, then artisans and craftspeople, and finally, merchants who did not grow or make anything (with some illegal jobs at the end). The short introductions to the Chinese dynastic method of counting years, education, rank and honour, religion and schools of thought are really helpful in providing context to a culture that is quite different for most readers.  If I could suggest one addition, it would be a consideration of how we know today about jobs that existed between the Han and Tang dynasties (206 BCE to 907 CE) more than 1000 years ago. The answers (presumably a combination of the ancients' meticulous record keeping and desire for meaningful artistic ornament, combined with conscientious preservation, and modern skills in the humanities and social sciences) would shed further light on interesting jobs, careers, and intellectual pursuits for today's students. There may be a few, minor short-comings. One is a subtle, underlying theme suggesting more individual choice of careers than there actually was. Another is some job "descriptions" refer to something that maybe happened only once in history – not really an everyday job. Also, the examples of Chinese script, while illustrative, seem to be just a little off in terms of balance or correct stroke order. But these are minor. Overall, this book is a wonderful introduction to Ancient China that should stimulate further exploration into the fascinating study of History. Recommended:  4 out of 4 stars Reviewer: David Sulz David is a Public Services Librarian at University of Alberta and liaison librarian to Economics, Religious Studies, and Social Work. He has university studies in Library Studies, History, Elementary Education, Japanese, and Economics;  he formerly taught in schools and museums. His interests include physical activity, music, home improvements, and above all, things Japanese.


The sparkling debut children's novel from David Walliams, number one bestseller and fastest growing children's author in the country, with sparkling new cover look to tie in with later books. Dennis was different. Why was he different, you ask? Well, a small clue might be in the title of this book...Charming, surprising and hilarious - The Boy in the Dress is everything you would expect from the co-creator of Little Britain. David Walliams's beautiful first novel will touch the hearts (and funny bones) of children and adults alike.


A set of recommendations for pan-European transparent and independent road accident investigations has been developed by
the SafetyNet project. The aim of these recommendations is to pave the way for future EU scale accident investigation
activities by setting out the necessary steps for establishing safety oriented road accident investigations in Member States.
This can be seen as the start of the process for establishing road accident investigations throughout Europe which operate
according to a common methodology.
The recommendations propose a European Safety Oriented Road Accident Investigation Programme which sets out the
procedures that need to be put in place to investigate a sample of every day road accidents. They address four sets of issues;
institutional addressing the characteristics of the programme; operational describing the conditions under which data is
collected; data storage and protection; and reports, countermeasures and the dissemination of data.


Continuing the impressive debut fantasy series from author Peter V. Brett, The Desert Spear is book two of the Demon Cycle, pulling the reader into a world of demons, darkness and heroes. The Deliverer has returned, but who is he? Arlen Bales, formerly of the small hamlet of Tibbet's Brook, learnt harsh lessons about life as he grew up in a world where hungry demons stalk the night and humanity is trapped by its own fear. He chose a different path; chose to fight inherited apathy and the corelings, and eventually he became the Painted Man, a reluctant saviour. But the figure emerging from the desert, calling himself the Deliverer, is not Arlen. He is a friend and betrayer, and though he carries the spear from the Deliverer's tomb, he also heads a vast army intent on a holy war against the demon plague...and anyone else who stands in his way.


CONTEXT
Drum circles have been part of healing rituals in many cultures throughout the world since antiquity. Although drum circles are gaining increased interest as a complementary therapeutic strategy in the traditional medical arena, limited scientific data documenting biological benefits associated with percussion activities exist.

OBJECTIVE
To determine the role of group-drumming music therapy as a composite activity with potential for alteration of stress-related hormones and enhancement of specific immunologic measures associated with natural killer cell activity and cell-mediated immunity.

DESIGN
A single trial experimental intervention with control groups.

SETTING
The Mind-Body Wellness Center, an outpatient medical facility in Meadville, Pa.

PARTICIPANTS
A total of 111 age- and sex-matched volunteer subjects (55 men and 56 women, with a mean age of 30.4 years) were recruited.

INTERVENTION
Six preliminary supervised groups were studied using various control and experimental paradigms designed to separate drumming components for the ultimate determination of a single experimental model, including 2 control groups (resting and listening) as well as 4 group-drumming experimental models (basic, impact, shamanic, and composite). The composite drumming group using a music therapy protocol was selected based on preliminary statistical analysis, which demonstrated immune modulation in a direction opposite to that expected with the classical stress response. The final experimental design included the original composite drumming group plus 50 additional age- and sex-matched volunteer subjects who were randomly assigned to participate in group drumming or control sessions.

MAIN OUTCOME MEASURES
Pre- and postintervention measurements of plasma cortisol, plasma dehydroepiandrosterone, plasma dehydroepiandrosterone-to-cortisol ratio, natural killer cell activity, lymphokine-activated killer cell activity, plasma interleukin-2, plasma interferon-gamma, the Beck Anxiety Inventory, and the Beck Depression Inventory II.

RESULTS
Group drumming resulted in increased dehydroepiandrosterone-to-cortisol ratios, increased natural killer cell activity, and increased lymphokine-activated killer cell activity without alteration in plasma interleukin 2 or interferon-gamma, or in the Beck Anxiety Inventory and the Beck Depression Inventory II.

CONCLUSIONS
Drumming is a complex composite intervention with the potential to modulate specific neuroendocrine and neuroimmune parameters in a direction opposite to that expected with the classic stress response.


Background/Context The study examines teachers' and administrators' perspectives on the persistent academic failure of African American male high school students. The study took place between 2003 and 2005 in a low-performing high school in Summerfield County, a Black suburban county in the Mid-Atlantic region of the United States with a poverty rate below 8%, according to the 2000 United States census. At the time of the study, there were a number of initiatives across the state designed to address what was being referred to as "the minority achievement gap." The researchers—most of whom were African American faculty and graduate students at the University of Maryland—were interested in understanding what teachers and other school personnel such as counselors and administrators would have to say about why African American students, particularly males, tended to persistently underperform on standardized measures of achievement, had higher rates of suspension and expulsion from school, were overrepresented in special education, and had significantly higher dropout rates than all other subgroups in this mostly Black and middle-class suburban school district. Purpose and Research Questions In the present article, we build on the work of scholars of critical race studies in education and scholars concerned about teachers' impact on student achievement to explore teachers' beliefs about African American students, and we discuss the possible implications for African American males in troubled schools. We used critical race ethnographic methods to collect data on the following research questions: (1) How does a low-performing high school in a low-performing school district cope with the persistent problem of African American male underachievement? (2) In particular, how do teachers and administrators understand the problem? (3) How might this impact their ability to work successfully with African American male students? Setting The study took place in Summerfield County, a majority-Black suburban county in the Mid-Atlantic region of the United States. The county is known as the wealthiest Black county in the nation. With over 100,000 students, its school district is one of the largest and lowest performing in the state. At the time of the study, the district was ranked 23rd out of 24 districts in the state in measures of standardized achievement. The research took place in a midsized all-Black high school in a section of the county that is contiguous with one of the poorer sections of a nearby city. The high school, with a 99% Black population of slightly fewer than 1,000 students, was one of the lowest performing high schools in the district. Participants The main participants in the study consisted of two groups: (1) a sample of 50 teachers, administrators, and counselors, and (2) a subsample of 6 teachers in art, music, technology, social studies, and math who participated in ongoing individual interviews, a focus group, and classroom observations. Research Design This study involved a series of focus groups, formal and informal interviews with teachers, counselors, and administrators, and 18 months of ethnographic observations in the school. Conclusions Researchers found that school personnel overwhelmingly blamed students, their families, and their communities for the minority achievement gap. In short, the school was pervaded by a culture of defeat and hopelessness. Ongoing conversations with a smaller group of teachers committed to the success of African American male students revealed that the school was not a safe space for caring teachers who wanted to make a difference in the lives of their students.


Although there is a rich jurisprudential literature dealing with the concept of authority in law, the lessons from this jurisprudential tradition have never been connected with the practice by which authorities - cases, statutes, constitutions, regulations, articles, and books, primarily - are a central feature of common law legal argument, legal reasoning, and judicial decision-making. This disconnect between thinking about the nature of authority and reflecting on law's use of authorities has become even more troublesome of late, because controversies about the citation of foreign law, the increasing use of no-citation and no-precedential-effect rules in federal and state courts, and even such seemingly trivial matters as whether lawyers, judges and legal scholars should cite or rely on Wikipedia all raise central questions about the idea of authority and its special place in legal reasoning. In seeking to close this gap between the jurisprudential lessons and their contemporary application, this Essay casts doubt on the traditional dichotomy between binding and persuasive authority, seeks to understand the distinction among prohibited, permissive, and mandatory legal sources, and attempts to explain the process by which so-called authorities gain (and sometimes lose) their authoritative status.


The #1 Sunday Times bestseller from 'the most influential public intellectual in the Western world right now' (New York Times) - now in paperback. How should we live properly in a world of chaos and uncertainty? Jordan Peterson has helped millions of people, young and old, men and women, aim at a life of responsibility and meaning. Now he can help you. Drawing on his own work as a clinical psychologist and on lessons from humanity's oldest myths and stories, Peterson offers twelve profound and realistic principles to live by. After all, as he reminds us, we each have a vital role to play in the unfolding destiny of the world. Deep, rewarding and enlightening, 12 Rules for Life is a lifeboat built solidly for stormy seas: ancient wisdom applied to our contemporary problems.


Initiated with Operation Gatekeeper in the early 1990s, and extended with significant funding by the Secure Fences Act in 2006, the United States has committed itself to physical fortification of its border with Mexico. The stated purpose of the border fence is to eliminate unlawful entry into the United States. Yet, since the initiation of the border fence project, critics and empirical researchers have found the fortification, at best, to be costly and ineffectual in accomplishing its stated goals; at worst, they argue it causes significant death without any deterrence. In the face of this critique, this article theorizes the creation and persistence of a border wall, arguing that several factors unrelated to actual deterrence inexorably provoke the building of a physical border barrier. After first describing the powerful cost-benefit case establishing the disutility of a border fence, the article explains the underlying forces that render such critiques unpersuasive. Instead, the article presents alternative rationales for border wall construction based on incentives for national lawmakers and the federal government that are only marginally related to actual elimination of unlawful entry. The article then highlights the importance of the wall's physicality, explaining how its existence alters immigration enforcement and migration discourse in politically, culturally, and legally significant ways. Fundamentally, the border wall naturalizes and normalizes the idea of a national border, thereby facilitating harsh enforcement strategies. Meanwhile, its presence helps generate even more undocumented presence within the country, rendering the wall not only an apparent solution to a perceived problem, but constitutive of the problem itself. Finally, the article queries whether the existence of the border fence at our current historical moment portends the weakening of nation-state boundaries. A physical border barrier, counterintuitively, may be the harbinger of diminished sovereign power, serving more as a warning to the walled-in citizenry of the constructing nation than to putative migrants on the outside.


Arguments based on historical practice are a mainstay of debates about the constitutional separation of powers. Surprisingly, however, there has been little sustained academic attention to the proper role of historical practice in this context. The scant existing scholarship is either limited to specific subject areas or focused primarily on judicial doctrine without addressing the use of historical practice in broader conceptual or theoretical terms. To the extent that the issue has been discussed, most accounts of how historical practice should inform the separation of powers require "acquiescence" by the branch of government whose prerogatives the practice implicates, something that is viewed as critical to giving historical practice the force of law. Yet the concept of acquiescence has been treated much too casually in the literature. Claims about acquiescence are typically premised on a Madisonian conception of interbranch competition, pursuant to which Congress and the Executive Branch are each assumed to have the tools and the motivation to guard against encroachments on their authority. It has become apparent from political science scholarship, however, that the Madisonian model does not accurately reflect the dynamics of modern congressional-executive relations. This requires a reexamination of the premises and implications of the idea of institutional acquiescence in particular, and of the role of historical practice more generally. Ultimately, we argue, the problems with the Madisonian model are not fatal to crediting historical practice in interpreting the separation of powers. But they do require more attention to the reasons why such practice is invoked, the extent to which the reasons demand institutional acquiescence, and the precise method by which such acquiescence is identified. To illustrate the importance of each of these questions, we present three case studies of constitutional debates concerning the separation of powers in which practice-based arguments are prominent - war powers, congressional-executive agreements, and removal of executive officers.


Improve your lighting technique to produce better quality photographs Digital Photography Lighting For Dummies features the tools, concepts, and steps you need to give your subjects a high-quality look and feel. Everyone from advanced beginners to aspiring professional photographers will improve their understanding of lighting basics as well as the parts and functions of their camera. Explains the different kinds of lighting that different situations require and guides you through changing the settings on your camera Shows you how to set up equipment to capture the photograph you want with the proper amount of light and shadow Offers information on the latest lighting equipment and accessories Includes techniques and skills used by film photographers like David Bailey, Ansel Adams, and Annie Leibovitz Reach for Digital Photography Lighting For Dummies and take your knowledge of lighting and photography to the next level!


There is a strong and optimistic commitment by all staff to the school improvement strategy and a clear belief that further improvement is possible. Teachers take responsibility for the changes in their practice required to achieve school targets and are using data on a regular basis to monitor the effectiveness of their own efforts to meet those targets. The school has developed an agenda for improvement and school leaders can describe the improvements they wish to see in student behaviours and outcomes. This agenda is communicated in staff meetings, school newsletters, parent teacher meetings and on the school website using a variety of formats to suit local needs.


In Geontologies Elizabeth A. Povinelli continues her project of mapping the current conditions of late liberalism by offering a bold retheorization of power. Finding Foucauldian biopolitics unable to adequately reveal contemporary mechanisms of power and governance, Povinelli describes a mode of power she calls geontopower , which operates through the regulation of the distinction between Life and Nonlife and the figures of the Desert, the Animist, and the Virus. Geontologies examines this formation of power from the perspective of Indigenous Australian maneuvers against the settler state. And it probes how our contemporary critical languages—anthropogenic climate change, plasticity, new materialism, antinormativity—often unwittingly transform their struggles against geontopower into a deeper entwinement within it. A woman who became a river, a snakelike entity who spawns the fog, plesiosaurus fossils and vast networks of rock weirs: in asking how these different forms of existence refuse incorporation into the vocabularies of Western theory Povinelli provides a revelatory new way to understand a form of power long self-evident in certain regimes of settler late liberalism but now becoming visible much further beyond.


A fundamental understanding of attachment of engineered nanoparticles to environmentalrnsurfaces is essential for the prediction of nanoparticle fate and transport in the environment.
The present work investigates the attachment of non-coated silver nanoparticles and citraterncoated silver nanoparticles to different model surfaces and environmental surfaces in thernpresence and absence of humic acid. Batch sorption experiments were used for this investigation.
The objective of this thesis was to investigate how silver nanoparticles interactrnwith surfaces having different chemical functional groups. The effect of presence of HA, on the particle-surface interactions was also investigated. In the absence of humic acid, nanoparticle-surface interactions or attachment was influencedrnby the chemical nature of the interacting surfaces. On the other hand, in the presence ofrnhumic acid, nanoparticle-surface attachment was influenced by the specific surface area of the sorbent surfaces. The sorption of non-coated silver nanoparticles and citrate coatedrnnanoparticles to all the surfaces was nonlinear and best described by Langmuir isotherm, indicating monolayer sorption of nanoparticles on to the surfaces. This can be explained as due to the blocking effect generated by the particle-particle repulsion. In the presence of humic acid, sorption of nanoparticles to the surfaces was linear. When the humic acid was present in the interacting medium, both the nanoparticles and surfaces were getting coated with humic acid and this masks the chemical functionalities of the surfaces. This leads to the change in particle-surface interactions, in the presence of humic acid. For the silver nanoparticle sorption from an unstable suspension, the sorption isotherms did not follow any classical sorption models, suggesting interplay between aggregation and sorption. Citrate coated silver nanoparticles and humic acid coated silver nanoparticles showed arndepression in sorption compared to the sorption of non-coated silver nanoparticles. In therncase of citrate coated silver nanoparticles the decrease in sorption can be explained by thernmore negative zeta potential of citrate coated nanoparticles compared to non-coated ones. For humic acid coated nanoparticles the sorption depression can be due to the steric hindrance caused by the free humic acid molecules which may coat the sorbent surface or due to the competition for sorption sites between the nanoparticle and free humic acid molecules present in the suspension. Thus nanoparticle surface chemistry is an important factor that determines the attachment of nanoparticles towards surfaces and it makes the characterization of nanoparticle surface an essential step in the study of their fate in the environment.
Another aim of this study was to introduce the potential of chemical force microscopy for nanoparticle surface characterization. With the use of this technique, it was possible to distinguish between bare silver nanoparticles, citrate coated silver nanoparticles, and humic acid coated silver nanoparticles. This was possible by measuring the adhesion forces between the nanoparticles and five different AFM probes having different chemical functionalization.


OBJECT
The aim of this study was to correlate the clinical improvement in patients with Parkinson disease (PD) treated using deep brain stimulation (DBS) of the subthalamic nucleus (STN) with the precise anatomical localization of stimulating electrodes.

METHODS
Localization was determined by superimposing figures from an anatomical atlas with postoperative magnetic resonance (MR) images obtained in each patient. This approach was validated by an analysis of experimental and clinical MR images of the electrode, and the development of a three-dimensional (3D) atlas-MR imaging coregistration method. The PD motor score was assessed through two contacts for each of two electrodes implanted in 10 patients: the "therapeutic contact" and the "distant contact" (that is, the next but one to the therapeutic contact). Seventeen therapeutic contacts were located within or on the border of the STN, most of which were associated with significant improvement of the four PD symptoms tested. Therapeutic contacts located in other structures (zona incerta, lenticular fasciculus, or midbrain reticular formation) were also linked to a significant positive effect. Stimulation applied through distant contacts located in the STN improved symptoms of PD, whereas that delivered through distant contacts in the remaining structures had variable effects ranging from worsening of symptoms to their improvement.

CONCLUSIONS
The authors have demonstrated that 3D atlas-MR imaging coregistration is a reliable method for the precise localization of DBS electrodes on postoperative MR images. In addition, they have confirmed that although the STN is the main target during DBS treatment for PD, stimulation of surrounding regions, particularly the zona incerta or the lenticular fasciculus, can also improve symptoms of PD.


This article offers an initial assessment of the Supreme Court's Spending Clause holding in National Federation of Independent Business v. Sebelius, which addressed the constitutional challenge to the Affordable Care Act. As Justice Ginsburg pointed out, NFIB marks "the first time ever" that the Court has held that a spending condition unconstitutionally coerced the states. The implications of that holding are potentially massive, and some of the language in the decision, if read broadly, would seriously threaten the constitutionality of a broad swath of federal spending legislation. Notwithstanding some of the Court's language, this article contends that the case is not best read as rendering federal spending conditions unconstitutional simply because they are attached to large amounts of federal money, change the terms of participation in entrenched cooperative programs, or tie together separate programs into a package deal. Rather Chief Justice Roberts's pivotal opinion is best read as adopting an "anti-leveraging principle" that will find coercion only where all three of these conditions are present at the same time. The anti-leveraging principle both makes the most sense of what the Chief Justice actually said in NFIB and does a better job of accommodating the relevant constitutional values than do alternative readings of the case. Although that principle threatens the constitutionality of far fewer conditional-spending laws than do those alternative readings, it raises challenging questions about the constitutionality of certain spending conditions. And it gives states an important new tool in negotiations with federal administrators.


In prescribing de novo judicial review of agencies' decisions to withhold requested information from the public under the Freedom of Information Act (FOIA), Congress deliberately and radically departed from the typical deferential treatment courts are required to give to agencies. Nonetheless, empirical studies demonstrate that the de novo review standard on the books in FOIA cases is not the standard used in practice. In fact, despite being subject to the stringent de novo standard, agencies' FOIA decisions are upheld at a substantially higher rate than agency decisions that are entitled to deferential review. This Article posits that although courts recite the appropriate standard in FOIA cases, they have created a collection of practices unique to FOIA cases that have the effect of deferring to the government's secrecy positions. First, in some cases, courts expressly defer to particular representations made by the government, even though these representations are themselves crucial to the overall determination of the legality of the withholding. Second, in every FOIA case, certain procedural practices have become part of the body of case law governing how FOIA cases are adjudicated, and these practices stack the deck in favor of the government. This Article concludes that these procedural practices, which are departures from the federal procedural system's trans-substantive design, may be the more pernicious of the deference doctrines under FOIA, as they hide the true nature of the rulings, make it more difficult for the political branches to respond, and diminish public confidence in the judiciary.


White spruce (Picea glauca (Moench) Voss) is one of the most common conifers in Alaska and various treelines mark the species distribution range. Because treelines positions are driven by climate and because climate change is estimated to be strongest in northern latitudes, treeline shifts appear likely. However, species range shifts depend on various species parameters, probably most importantly on phenotypic plasticity, genetic adaptation
and dispersal. Due to their long generation cycles and their immobility, trees evolved to endure a wide variety of climatic conditions. In most locations, interannual climate variability is larger than the expected climate change until 2100. Thus treeline position is typically thought of as the integrated effect of multiple years and to lag behind gradual climate change by several decades. Past dendrochronological studies revealed that growth of white spruce in Alaska can be limited by several climatic variables, in particular water stress and low temperatures. Depending on how the intensity of climate warming, this could result in a leading range edge at treelines limited by low temperatures and trailing treelines where soil moisture is or becomes most limiting. Climate-growth correlations are the dendrochronological version of reaction norms and describe the relationship between an environmental variable and traits like tree-ring parameters (e.g. ring width, wood density, wood anatomy). These correlations can be used to explore potential effects of climate change on a target species. However, it is known that individuals differ with respect to multiple variables like size, age, microsite conditions, competition status or their genome. Such individual differences could be important because they can modulate climate-growth relationships and consequently also range shifts and growth trends. Removing individual differences by averaging tree-ring parameters of many individuals into site chronologies could be an oversimplification that might bias estimates of future white spruce performance. Population dynamics that emerge from the interactions of individuals (e.g. competition) and the range of reactions to the same environmental drivers can only be studied via individual tree analyses. Consequently, this thesis focuses on factors that might alter individual white spruce' climate sensitivity and methods to assess such effects. In particular, the research articles included explore three topics:
1. First, clones were identified via microsatellites and high-frequency climate signals of clones were compared to that of non-clonal individuals. Clonal and non-clonal individuals showed similar high-frequency climate signals which allows to use clonal and non-clonal individuals to construct mean site chronologies. However, clones were more frequently found under the harsher environmental conditions at the treelines which could be of interest for the species survival strategy at alpine treelines and is further explored in the associated RESPONSE project A5 by David Wurth.
2. In the second article, methods for the exploration and visualization of individual-tree differences in climate sensitivity are described. These methods represent a toolbox to explore causes for the variety of different climate sensitivities found in individual
trees at the same site. Though, overlaying gradients of multiple factors like temperature, tree density and/or tree height can make it difficult to attribute a single cause to the range of reaction norms (climate growth correlations).
3. Lastly, the third article attempts to disentangle the effect of age and size on climate-growth correlations. Multiple past studies found that trees of different Ages responded differently to climatic drivers. In contrast, other studies found that trees do not age like many other organisms. Age and size of a trees are roughly correlated, though there are large differences in the growth rate of trees, which can lead to smaller trees that are older than taller trees. Consequently, age is an imperfect Proxy for size and in contrast to age, size has been shown to affect wood anatomy and thus tree physiology. The article compares two tree-age methods and one tree-size method based on cumulative ring width. In line with previous research on aging and Wood anatomy, tree size appeared to be the best predictor to explain ontogenetic changes in white spruce' climate sensitivity. In particular, tallest trees exhibited strongest correlations with water stress in previous year July. In conclusion, this thesis is about factors that can alter climate-growth relationships (reaction norms) of white spruce. The results emphasize that interactions between climate variables and other factors like tree size or competition status are important for estimates of future tree growth and potential treeline shifts. In line with previous studies on white spruce in Alaska, the results of this thesis underline the importance of water stress for white spruce.
Individuals that are taller and that have more competitors for water appear to be most susceptible to the potentially drier future climate in Alaska. While tree ring based growth trends estimates of white spruce are difficult to derive due to multiple overlaying low frequency (>10 years) signals, all investigated treeline sites showed highest growth at the treeline edge. This could indicate expanding range edges. However, a potential bottleneck for treeline advances and retreats could be seedling establishment, which should be explored in more detail in the future.


This article examines the causes and consequences of a transformation in anti-discrimination discourse between 1970 and 1977 that shapes our constitutional landscape to this day. Fears of cross-racial intimacy leading to interracial marriage galvanized many white Southerners to oppose school desegregation in the 1950s and 1960s. In the wake of Brown v. Board of Education, some commentators, politicians, and ordinary citizens proposed a solution: segregate the newly integrated schools by sex. When court-ordered desegregation became a reality in the late 1960s, a smattering of southern school districts implemented sex separation plans. As late as 1969, no one saw sex-segregated schools as posing a constitutional sex discrimination problem; the only question judges asked was whether the sex separation schemes were motivated by "racial discrimination" or by "legitimate educational purposes." Legitimate educational purposes included bolstering boys' opportunities for leadership at girls' expense, providing sex-specific curricula for boys and girls, and avoiding the "needless duplication" of athletic, vocational, and other facilities. During the 1970s, the women's rights revolution transformed the legal discourse surrounding these "Jane Crow" cases. Advocates began to frame sex segregation as imposing a stigma and sense of inferiority on girls in a manner analogous to the effects of Jim Crow on African American children. This analogy-based sex discrimination paradigm became the principal framework for analyzing sex segregation, but it failed to capture what was at stake for white and black communities in the struggle over Jane Crow. The Jane Crow cases provide an alternative to the dominant Supreme Court narrative of sex segregation, shedding light on the complex historical relationship between race and sex inequality and on the consequences of framing constitutional equality harms in particular ways.


This paper studies emerging technologies for tracking reading behaviors ("reading analytics") and their implications for reader privacy, attempting to place them in a historical context. It discusses what data is being collected, to whom it is available, and how it might be used by various interested parties (including authors). I explore means of tracking what's being read, who is doing the reading, and how readers discover what they read. The paper includes two case studies: mass-market e-books (both directly acquired by readers and mediated by libraries) and scholarly journals (usually mediated by academic libraries); in the latter case I also provide examples of the implications of various authentication, authorization and access management practices on reader privacy. While legal issues are touched upon, the focus is generally pragmatic, emphasizing technology and marketplace practices. The article illustrates the way reader privacy concerns are shifting from government to commercial surveillance, and the interactions between government and the private sector in this area. The paper emphasizes U.S.-based developments.


Abstract  A better understanding of the cortical processes underlying attentional modulation of visceral and somatic pain in health are essential for interpretation of future imaging studies of hypervigilance towards bodily sensations which is considered to be an aetiologically important factor in the heightened pain reported by patients with irritable bowel syndrome and fibromyalgia. Twelve healthy subjects were recruited for this study. Simultaneous trains of electrical pulses (delivered to either the rectum or lower abdomen) and auditory tones lasting 6 s were delivered to the subjects during a whole‐brain functional scan acquisition. Subjects were instructed to attend to the auditory tones (distracter task) or electrical pulses (pain task). Pain intensity ratings were significantly lower during the distraction task compared with the pain task (P < 0.01) in both sensory modalities. The left primary somatosensory cortex increased in activity with increasing pain report, during attention to visceral pain. Bilateral anterior insula (aIns) cortex activity increased with increasing somatic pain report independent of the direction of attention. Conversely, the primary and secondary auditory cortices significantly increased in activation with decreased pain report. These results suggest that pain intensity perception during attentional modulation is reflected in the primary somatosensory cortex (visceral pain) and aIns cortex activity (somatic pain).


In their personal lives, people consider it essential to separate economics and intimacy. We have, for example, a long-standing taboo against workplace romance, while we see marital love as different from prostitution because it is not a fundamentally financial exchange. In The Purchase of Intimacy , Viviana Zelizer mounts a provocative challenge to this view. Getting to the heart of one of life's greatest taboos, she shows how we all use economic activity to create, maintain, and renegotiate important ties--especially intimate ties--to other people. In everyday life, we invest intense effort and worry to strike the right balance. For example, when a wife's income equals or surpasses her husband's, how much more time should the man devote to household chores or child care? Sometimes legal disputes arise. Should the surviving partner in a same-sex relationship have received compensation for a partner's death as a result of 9/11? Through a host of compelling examples, Zelizer shows us why price is central to three key areas of intimacy: sexually tinged relations; health care by family members, friends, and professionals; and household economics. She draws both on research and materials ranging from reports on compensation to survivors of 9/11 victims to financial management Web sites and advice books for same-sex couples. The Purchase of Intimacy opens a fascinating new window on the inner workings of the economic processes that pervade our private lives.


The paper investigates the question of screening ideas in the 'fuzzy front end' of engineering design, examining the validity of employee voting schemes and related biases. After an employee-driven innovation project at {Company Name removed for review}, 99 ideas were to be screened for further development. Based on the concept of 'wisdom of the crowds', all ideas were individually rated by a broad selection of employees, and their choices of ideas and idea categories compared to those of a small team of senior marketers. The study also tested for two biases: visual complexity and endowment effect/ownership of ideas. The study shows that the crowd wisdom of employees significantly correlates with the preferences of the marketing team: overall, in top 12 selected ideas and in choice of idea categories. This match increases when including only the ratings of the most experienced employees. The experienced employees also proved to be less affected by visual complexity in the ideas presented. The endowment effect was potent in that every employee proved to be more likely to select their own ideas over others, but this effect disappeared when aggregating across the crowd of employees.


: This paper looks at the issue of the quality of education in Yemen. It uses micro-data from TIMSS and from surveys conducted in underserved rural areas, as well as macro-level policy information from the System Assessment for Better Education Results (SABER) database. The analysis indicates that the availability of teachers and resources at schools, the monitoring and supervision of schools and parental involvement in schooling are important factors for better learning outcomes and avoiding trade-offs between expansion of enrollment and quality of learning. The paper suggests three types of reforms that can be carried out in the short run. First, it is necessary to systematically monitor teachers' actual deployment and attendance in order to link the information with salary management and incentives. Second, there is a need to refine and scale up the existing implementation and monitoring mecha - nism for school grants to reward schools and communities that improve access for disadvantaged students and girls, and enhance the quality of learning. Third, there is a need to enhance transparency and accountability of school resources and results by disseminating a simple database that would include trends of basic indicators to monitor and compare progress at the school, district and governorate level.


We present a new efficient and robust algorithm for topology optimization of 3D cast parts. Special constraints are fulfilled to make possible the incorporation of a simulation of the casting process into the optimization: In order to keep track of the exact position of the boundary and to provide a full finite element model of the structure in each iteration, we use a twofold approach for the structural update. A level set function technique for boundary representation is combined with a new tetrahedral mesh generator for geometries specified by implicit boundary descriptions. Boundary conditions are mapped automatically onto the updated mesh. For sensitivity analysis, we employ the concept of the topological gradient. Modification of the level set function is reduced to efficient summation of several level set functions, and the finite element mesh is adapted to the modified structure in each iteration of the optimization process. We show that the resulting meshes are of high quality. A domain decomposition technique is used to keep the computational costs of remeshing low. The capabilities of our algorithm are demonstrated by industrial-scale optimization examples.


Drawing on a wide range of historical sources - court records, newspaper reports, medical records, novels, oral histories and personal papers - A Lesbian History of Britain presents the extraordinary history of lesbian experience in Britain. Covering landmark moments and well-known personalities (such as Radclyffe Hall and the publication and banning of her lesbian novel The Well of Loneliness), but also examining the lives and experiences of ordinary women, it brings both variety and nuance to their shared history. In doing so, it also explores cultural representations of, and changing attitudes to, female same-sex desire in Britain. The narrative is arranged chronologically and begins with the accounts of a number of women in the 18th century who passed themselves off as men. The C18th & C19th saw 'Romantic Friendships' between women and, later, the emergence of a science of sexuality, and the concept of the female 'sexual invert". At the same time, 'New Women' were pursuing independent careers, a self-confidence reflected in the publication of a number of novels explicitly about lesbian experience. The 20s and 30s were characterised by parliamentary debates on lesbianism, court cases and scandals, though, with two world wars, lesbian experiences were already changing, and a newly vibrant lesbian 'scene', centred on bars and night-clubs, was emerging, supported by a growing number of lesbian-oriented magazines and societies. The contemporary period has been marked by political movements and campaigns, in which lesbians have been active, and increasingly vocal debates surrounding the 'sex wars'.


Written by America's foremost instructional authority, the new edition of "Sailing Fundamentals" combines the training programs of the American Sailing Association and the United States Coast Guard Auxiliary. The official learn-to-sail manual of the American Sailing Association, it is also used in the programs of many yacht clubs, colleges, and sailing groups. Unlike most introductory sailing books, which reflect the biases and idiosyncrasies of their authors, "Sailing Fundamentals" has been extensively pretested by ASA professional instructors to ensure that it offers the fastest, easiest, most systematic way to learn basic sailing and basic coastal cruising. This book covers every aspect of beginning sailing -- from hoisting sail to docking and anchoring -- and specifically prepares the learner to qualify for sailing certification according to international standards. Widely acclaimed author Gary Jobson has won several major races, including the 1977 America's Cup victory as tactician aboard "Courageous." He was head sailing coach at the U.S. Naval Academy, and has conducted sailing clinics across the country. "Illustrated step-by-step in two colors with over 150 line drawings and photographs."


A New York Times BestsellerFrom one of our leading technology thinkers and writers, a guide through the twelve technological imperatives that will shape the next thirty years and transform our lives Much of what will happen in the next thirty years is inevitable, driven by technological trends that are already in motion. In this fascinating, provocative new book, Kevin Kelly provides an optimistic road map for the future, showing how the coming changes in our livesfrom virtual reality in the home to an on-demand economy to artificial intelligence embedded in everything we manufacturecan be understood as the result of a few long-term, accelerating forces. Kelly both describes these deep trendsinteracting, cognifying, flowing, screening, accessing, sharing, filtering, remixing, tracking, and questioningand demonstrates how they overlap and are codependent on one another. These larger forces will completely revolutionize the way we buy, work, learn, and communicate with each other. By understanding and embracing them, says Kelly, it will be easier for us to remain on top of the coming wave of changes and to arrange our day-to-day relationships with technology in ways that bring forth maximum benefits. Kellys bright, hopeful book will be indispensable to anyone who seeks guidance on where their business, industry, or life is headingwhat to invent, where to work, in what to invest, how to better reach customers, and what to begin to put into placeas this new world emerges.


The perception of cyclic structures is a crucial step in the analysis of graphs. To describe the cycle vector space of a graph, a minimum cycle basis can be computed in polynomial time using an algorithm of [Horton, 1987]. But the set of cycles corresponding to a minimum basis is not always relevant for analyzing the cyclic structure of a graph. This restriction is due to the fact that a minimum cycle basis is generally not unique for a given graph. Therefore, the smallest canonical set of cycles which describes the cyclic structure of a graph is the union of all the minimum cycle bases . This set of cycles is called the set of relevant cycles and denoted by ${\cal C_R}$. A relevant cycle can also be defined as a cycle which is not the sum of shorter cycles. A polynomial algorithm is presented that computes a compact representation of the potentially exponential-sized set ${\cal C_R}$ in $O(\nu m^3)$ (where $\nu$ denotes the cyclomatic number). This compact representation consists of a polynomial number of relevant cycle prototypes from which all the relevant cycles can be listed in $O(n\,|{\cal C_R}|)$. A polynomial method is also given that computes the number of relevant cycles without listing all of them.


We demonstrate that the parameters controlling skewness and kurtosis in popular equity return models estimated at daily frequency can be obtained almost as precisely as if volatility is observable by simply incorporating the strong information content of realized volatility measures extracted from high-frequency data. For this purpose, we introduce asymptotically exact volatility measurement equations in state space form and propose a Bayesian estimation approach. Our highly efficient estimates lead in turn to substantial gains for forecasting various risk measures at horizons ranging from a few days to a few months ahead when taking also into account parameter uncertainty. As a practical rule of thumb, we find that two years of high frequency data often suffice to obtain the same level of precision as twenty years of daily data, thereby making our approach particularly useful in finance applications where only short data samples are available or economically meaningful to use. Moreover, we find that compared to model inference without high-frequency data, our approach largely eliminates underestimation of risk during bad times or overestimation of risk during good times. We assess the attainable improvements in VaR forecast accuracy on simulated data and provide an empirical illustration on stock returns during the financial crisis of 2007-2008.


Emotion researcher Fredrickson wants to revamp our view of love. In Love 2.0., she has us reimagine love as a series of micromoments in which any two people, even strangers, can click with each other. This feeling might pop up multiple times a day, perhaps when smiling at a stranger or striking up a conversation while waiting in line for coffee. Fredrickson builds her case by expanding on research that shows how sharing a strong bond with another person alters our brain chemistry. She describes a study in which best friends' brains nearly synchronize when exchanging stories, even to the point where the listener can anticipate what the storyteller will say next. Fredrickson takes the ndings a step further, concluding that having positive feelings toward someone, even a stranger, can elicit similar neural bonding. This leap, however, is not supported by the study and fails to bolster her argument. In fact, most of the evidence she uses to support her theory of love falls at. She leans heavily on subjective reports of people who feel more connected with others after engaging in mental exercises such as meditation, rather than on more objective studies that measure brain activity associated with love. Fredrickson's strongest section is her exploration of how we can turn her insights into practice. For instance, she argues that loving-kindness meditation, which focuses on directing good-hearted wishes to others, can enhance our ability to connect. In one study, she found that regular use of this practice strengthens vagal tone, a measure of the vagus nerve, which relays sensory information between the brain and other areas. People with higher vagal tone are physically healthier, exhibiting less in ammation associated with cancer, and are more adept at bonding with others. Love 2.0 offers a new perspective on a well-worn topic. Despite the book's aws, Fredrickson's aim in broadening our view of the emotion is to spread the love. A worthy goal. —Samantha Murphy RO U N D U P >> Brain Truths Three books seek to improve our outlook on life


Generalized Paley graphs are cyclic graphs constructed from quadratic or higher residues of finite fields. Using this type of cyclic graphs to study the lower bounds for classical Ramsey numbers, has high computing efficiency in both looking for parameter sets and computing clique numbers. We have found a new generalization of generalized Paley graphs, i.e. automorphism cyclic graphs, also having the same advantages. In this paper we study the properties of the parameter sets of automorphism cyclic graphs, and develop an algorithm to compute the order of the maximum independent set, based on which we get new lower bounds for $8$ classical Ramsey numbers: $R(3,22) \geq 131$, $R(3,23) \geq 137$, $R(3,25) \geq 154$, $R(3,28) \geq 173$, $R(3,29) \geq 184$, $R(3,30) \geq 190$, $R(3,31) \geq 199$, $R(3,32) \geq 214$. Furthermore, we also get $R(5,23) \geq 521$ based on $R(3,22) \geq 131$. These nine results above improve their corresponding best known lower bounds.


In recent years, both practical barriers and conceptual problems have been identified concerning needs assessment work in adult and continuing education. This article provides an empirical study of needs assessment research that was conducted to support university-based continuing education programming in the field of health promotion in Saskatchewan. We describe the context of the Saskatchewan Heart Health Program (SHHP), narrate the development, findings, and outcomes of a significant needs assessment process, and identify implications of our work for other university continuing educators. Although formal needs assessment practices such as those described in this article may not always be appropriate for university continuing educators, they can be beneficial to marketing and pedagogical efforts. The SHHP needs assessment process encouraged our learners to actively and collectively reflect upon their learning priorities, increased their receptivity to our continuing education efforts, and provided us with an opportunity to role model a collaborative approach to health promotion program development.


There is a growing concern that desiccation and extreme radiation-resistant, non-spore-forming microorganisms associated with spacecraft surfaces can withstand space environmental conditions and subsequent proliferation on another solar body. Such forward contamination would jeopardize future life detection or sample return technologies. The prime focus of NASA s planetary protection efforts is the development of strategies for inactivating resistance-bearing microorganisms. Eradification techniques can be designed to target resistance-conferring microbial populations by first identifying and understanding their physiologic and biochemical capabilities that confers its elevated tolerance (as is being studied in Deinococcus phoenicis, as a result of this description). Furthermore, hospitals, food, and government agencies frequently use biological indicators to ensure the efficacy of a wide range of radiation- based sterilization processes. Due to their resistance to a variety of perturbations, the non-spore forming D. phoenicis may be a more appropriate biological indicator than those currently in use. The high flux of cosmic rays during space travel and onto the unshielded surface of Mars poses a significant hazard to the survival of microbial life. Thus, radiation-resistant microorganisms are of particular concern that can survive extreme radiation, desiccation, and low temperatures experienced during space travel. Spore-forming bacteria, a common inhabitant of spacecraft assembly facilities, are known to tolerate these extreme conditions. Since the Viking era, spores have been utilized to assess the degree and level of microbiological contamination on spacecraft and their associated spacecraft assembly facilities. Members of the non-spore-forming bacterial community such as Deinococcus radiodurans can survive acute exposures to ionizing radiation (5 kGy), ultraviolet light (1 kJ/sq m), and desiccation (years). These resistive phenotypes of Deinococcus enhance the potential for transfer, and subsequent proliferation, on another solar body such as Mars and Europa. These organisms are more likely to escape planetary protection assays, which only take into account presence of spores. Hence, presences of extreme radiation-resistant Deinococcus in the cleanroom facility where spacecraft are assembled pose a serious risk for integrity of life-detection missions. The microorganism described herein was isolated from the surfaces of the cleanroom facility in which the Phoenix Lander was assembled. The isolated bacterial strain was subjected to a comprehensive polyphasic analysis to characterize its taxonomic position. This bacterium exhibits very low 16SrRNA similarity with any other environmental isolate reported to date. Both phenotypic and phylogenetic analyses clearly indicate that this isolate belongs to the genus Deinococcus and represents a novel species. The name Deinococcus phoenicis was proposed after the Phoenix spacecraft, which was undergoing assembly, testing, and launch operations in the spacecraft assembly facility at the time of isolation. D. phoenicis cells exhibited higher resistance to ionizing radiation (cobalt-60; 14 kGy) than the cells of the D. radiodurans (5 kGy). Thus, it is in the best interest of NASA to thoroughly characterize this organism, which will further assess in determining the potential for forward contamination. Upon the completion of genetic and physiological characteristics of D. phoenicis, it will be added to a planetary protection database to be able to further model and predict the probability of forward contamination.


Middle-class households feel left behind and have questioned the benefits of economic globalisation. In many OECD countries, middle incomes have grown less than the average and in some they have not grown at all. Technology has automated several middle-skilled jobs that used to be carried out by middle-class workers a few decades ago. The costs of some goods and services such as housing, which are essential for a middleclass lifestyle, have risen faster than earnings and overall inflation. Faced with this, middle classes have reduced their ability to save and in some cases have fallen into debt. This report sheds light on the multiple pressures on the middle class. It analyses the trends of middle-income households through dimensions such as labour occupation, consumption, wealth and debt, as well as perceptions and social attitudes. It also discusses policy initiatives to address the concerns raised by the middle class, by protecting middle-class living standards and financial security in the face of economic challenges.


2. When an image on the film is obliterated with a round black mark it is an indication that the film inspector noticed cither blurred copy because of movement during exposure, or duplicate copy. Unless we meant to delete copyrighted materials that should not have been filmed, you will find a good image of the page in the adjacent frame. If copyrighted materials were deleted you will find a target note listing the pages in the adjacent frame.


Students' sometimes contradictory ideas about ATP (adenosine triphosphate) and the nature of chemical bonds have been studied in the biology and chemistry education literatures, but these topics are rarely part of the introductory physics curriculum. We present qualitative data from an introductory physics course for undergraduate biology majors that seeks to build greater interdisciplinary coherence and therefore includes these topics. In these data, students grapple with the apparent contradiction between the energy released when the phosphate bond in ATP is broken and the idea that an energy input is required to break a bond. We see that students' perceptions of how each scientific discipline bounds the system of interest can influence how they justify their reasoning about a topic that crosses disciplines. This has consequences for a vision of interdisciplinary education that respects disciplinary perspectives while bringing them into interaction in ways that demonstrate consistency amongst the perspe...


Sudden changes in stratospheric chlorine species in the polar northern atmosphere, caused by the Solar Proton Events (SPEs) of 17 and 20 January 2005, have been investi- gated and compared with version 4 of the Whole Atmosphere Community Climate Model (WACCM4). We used Aura Mi- crowave Limb Sounder (MLS) measurements to monitor the variability of ClO, HCl, HOCl and Michelson Interferometer for Passive Atmospheric Sounder (MIPAS) on ENVISAT to retrieve ClONO2. SPE-induced chlorine activation has been identified. HCl decrease occurred at nearly all the investi- gated altitudes (i.e., 10-0.5 hPa) with the strongest decrease (of about 0.25 ppbv) on 21 January. HOCl was found to be the main active chlorine species under nighttime condi- tions (with increases of more than 0.2 ppbv) whereas both HOCl and ClO enhancements (about 0.1 ppbv) have been ob- served at the polar night terminator. Further, small ClO de- creases (of less than 0.1 ppbv) and ClONO2 enhancements (about 0.2 ppbv) have been observed at higher latitudes (i.e., at nighttime) roughly above 2 hPa. While WACCM4 reproduces most of the SPE-induced variability in the chlorine species fairly well, in some particu- lar regions discrepancies between the modeled and measured temporal evolution of the abundances of chlorine species were found. HOCl changes are modelled very well with re- spect to both magnitude and geographic distribution. ClO decreases are reproduced at high latitudes, whereas ClO enhancements in the terminator region are underestimated and attributed to background variations. WACCM4 also re- produces the HCl depletion in the mesosphere but it does not show the observed decrease below about 2 hPa. Finally, WACCM4 simulations indicate that the observed ClONO2 increase is dominated by background variability, although SPE-induced production might contribute by 0.1 ppbv.


This article describes a simple and innovative solution, for libraries using MARC-based Integrated Library Systems (ILS), to compensate for the removal of the General Material Designation (GMD) from individual Resource Description and Access (RDA) bibliographic records in public displays. The solution is both a textual and visual one, based on the development of a text/icon combination, with an icon generated from the MARC leader code for material type, and then associated with the text from MARC tag 338, Carrier Type. The solution will work for all Anglo-American Cataloguing Rules, Second Edition (AACR2) and hybrid records as well.


The formulation of the decoding problem for linear block codes as an integer program (IP) with a rather tight linear programming (LP) relaxation has made a central part of channel coding accessible for the theory and methods of mathematical optimization, especially integer programming, polyhedral combinatorics and also algorithmic graph theory, since the important class of turbo codes exhibits an inherent graphical structure. We present several novel models, algorithms and theoretical results for error-correction decoding based on mathematical optimization. Our contribution includes a partly combinatorial LP decoder for turbo codes, a fast branch-and-cut algorithm for maximum-likelihood (ML) decoding of arbitrary binary linear codes, a theoretical analysis of the LP decoder's performance for 3-dimensional turbo codes, compact IP models for various heuristic algorithms as well as ML decoding in combination with higher-order modulation, and, finally, first steps towards an implementation of the LP decoder in specialized hardware. The scientific contributions are presented in the form of seven revised reprints of papers that appeared in peer-reviewed international journals or conference proceedings. They are accompanied by an extensive introductory part that reviews the basics of mathematical optimization, coding theory, and the previous results on LP decoding that we rely on afterwards.


Contracting over information is notoriously difficult. Nearly fifty years ago, Kenneth Arrow articulated a "fundamental paradox" that arises when two parties try to exchange information. To complete such a transaction, the buyer of information must be able to place a value on the information. But once the seller discloses the information, the buyer can take it without paying. The conventional solution to this disclosure paradox is intellectual property. If the information is protected by a patent or a copyright then the seller can disclose the information free in the knowledge that the buyer can be enjoined against making, using, or selling it without permission. This account of information exchange forms the basis for an increasingly popular argument in favor of strong and broad intellectual property rights for the purpose of overcoming the disclosure paradox and thereby facilitating the development and commercialization of ideas.That argument, however, rests on assumptions about the nature of information that are neither theoretically nor empirically justified. This article explains that, contrary to the conventional account of the disclosure paradox, information is not always nonexcludable and is not always a homogeneous asset. Instead, information is complex and multifaceted, subject to some inherent limitations but also manipulable by its holders. These characteristics give rise to a range of strategies for engaging in information exchange, of which intellectual property is only one. Information holders can use the characteristics of information itself as well as contractual and norms-based mechanisms and other legal or business strategies to achieve exchange. And examples drawn from fields as diverse and disparate as software and biotechnology show that entrepreneurs and inventors use these strategies alone or in combination to effectively link their ideas with capital and development skills, often without intellectual property playing a significant role in the transaction.Intellectual property is therefore not necessary to promote robust markets for information and is, in fact, just as contingent and context-specific a solution to the paradox as the alternatives described here. At the very least, then, there is reason to doubt that commercialization theories founded upon information exchange provide a standalone justification for intellectual property. This article urges caution in policy interventions that seek to respond to the disclosure paradox and sets the stage for future empirical research to better understand the dynamics of information exchange strategies and the social welfare costs and benefits that may accompany them.


Medical ultrasound or echocardiographic studies are highly operator-dependent and generally require lengthy training and internship to perfect. To obtain quality echocardiographic images in remote environments, such as on-orbit, remote guidance of studies has been employed. This technique involves minimal training for the user, coupled with remote guidance from an expert. When real-time communication or expert guidance is not available, a more autonomous system of guiding an inexperienced operator through an ultrasound study is needed. One example would be missions beyond low Earth orbit in which the time delay inherent with communication will make remote guidance impractical. The Virtual Ultrasound Guidance system is a combination of hardware and software. The hardware portion includes, but is not limited to, video glasses that allow hands-free, full-screen viewing. The glasses also allow the operator a substantial field of view below the glasses to view and operate the ultrasound system. The software is a comprehensive video program designed to guide an inexperienced operator through a detailed ultrasound or echocardiographic study without extensive training or guidance from the ground. The program contains a detailed description using video and audio to demonstrate equipment controls, ergonomics of scanning, study protocol, and scanning guidance, including recovery from sub-optimal images. The components used in the initial validation of the system include an Apple iPod Classic third-generation as the video source, and Myvue video glasses. Initially, the program prompts the operator to power-up the ultrasound and position the patient. The operator would put on the video glasses and attach them to the video source. After turning on both devices and the ultrasound system, the audio-video guidance would then instruct on patient positioning and scanning techniques. A detailed scanning protocol follows with descriptions and reference video of each view along with advice on technique. The program also instructs the operator regarding the types of images to store and how to overcome pitfalls in scanning. Images can be forwarded to the ground or other site when convenient. Following study completion, the video glasses, video source, and ultrasound system are powered down and stored. Virtually any equipment that can play back video can be used to play back the program. This includes a DVD player, personal computer, and some MP3 players.


Tourists' expectations regarding a given destination are affected to a certain extent by the destination's promotional activities. Although tourism destinations have promotional strategies that are put into effect with the goal of increasing the number of visitors, destination promotional failures are inevitable in the tourism industry. Many of the marketing planners in Vietnam tend to encounter difficulties when deciding which promotion tools to employ because they fail to understand tourists' consumer behaviors. The main purpose of this study is to explore how promotional activities and evaluative factors affect destination loyalty within the tourism industry. This study proposes a structural model of the relationships among promotional activities (PAs), tourist expectations (TEs), tourist satisfaction (TS) and destination loyalty (DL). Randomly selected respondents from the population of international tourists departing from Vietnamese international airports were selected to participate in the questionnaire study. Initially, an exploratory factor analysis (EFA) was performed to test the validity of the constructs, and the confirmatory factor analysis (CFA), using AMOS, was used to test the significance of the proposed hypothesis model. The results show that the relationships among PA, TE,TS and DL appear significant. The results also indicate that, beside their high expectations regarding a given destination's features, international tourists seem to be dissatisfied with the services that they received when visiting Vietnam. This dissatisfaction leads to a low level of tourists' intentions to return to Vietnam. This paper concludes with a discussion of the implications of the findings from the study for tourism marketers.


The paper delineates a heuristic device comprising relationships between levels of instrumentality towards Corporate Social Responsibility (CSR) implicit in differential theoretical organisational approaches, associated managerial freedom in ethical decision making, and corresponding managerial moral orientations. Prominent theoretical approaches to CSR including: criticalism, fundamentalism, social corporatism, social institutionalism and moralism identified in the extant literature are delineated. These approaches are synthesised and articulated with the concepts of degrees of CSR instrumentality, ethical freedom and managerial moral orientations to produce a composite heuristic device with specific potential practical implementations. Ramifications of the analysis in terms of developing managers with ethical acumen and providing organisational circumstances allowing this to flourish are briefly discussed.


One of the most talked-about books of last year, the Pulitzer Prize-winning author of Backlash now explores the collapse of traditional masculinity that has left men feeling betrayed. With Backlash in 1991, Susan Faludi broke new ground when she put her finger directly on the problem bedeviling women, and the light of recognition dawned on millions of her readers: what's making women miserable isn't something they're doing to themselves in the name of independence. It's something our society is doing to women. The book was nothing less than a landmark. Now in Stiffed, the author turns her attention to the masculinity crisis plaguing our culture at the end of the '90s, an era of massive layoffs, "Angry White Male" politics, and Million Man marches. As much as the culture wants to proclaim that men are made miserable--or brutal or violent or irresponsible--by their inner nature and their hormones, Faludi finds that even in the world they supposedly own and run, men are at the mercy of cultural forces that disfigure their lives and destroy their chance at happiness. As traditional masculinity continues to collapse, the once-valued male attributes of craft, loyalty, and social utility are no longer honored, much less rewarded. Faludi's journey through the modern masculine landscape takes her into the lives of individual men whose accounts reveal the heart of the male dilemma. Stiffed brings us into the world of industrial workers, sports fans, combat veterans, evangelical husbands, militiamen, astronauts, and troubled "bad" boys--whose sense that they've lost their skills, jobs, civic roles, wives, teams, and a secure future is only one symptom of a larger and historic betrayal.


"Superb ... Mr. Anderson does a masterly job in evoking Che's complex character, in separating the man from the myth and in describing the critical role Che played in one of the darkest periods of the cold war". -- The New York Times Book Review The Philadelphia Inquirer called Che Guevara "the best treatment of its subject to date", and the Denver Post wrote, "It is Anderson's careful research that will define Guevara for the future". Acclaimed around the world and a national best-seller, this is the definitive work on Che Guevara, the dashing rebel whose epic dream was to end poverty and injustice in Latin America and the developing world through armed revolution. Jon Lee Anderson's biography traces Che's extraordinary life, from his comfortable Argentine upbringing to the battlefields of the Cuban revolution, from the halls of power in Castro's government to his failed campaign in the Congo and his assassination in the Bolivian jungle. Combining unprecedented access to the personal archives maintained by Guevara's widow, carefully guarded Cuban government documents, and extensive interviews with both Che's comrades and the CIA men and Bolivian officers who hunted him down, Che Guevara illuminates as never before this mythic figure who embodied the greatest moment of revolutionary communism as a force in history. "Excellent ... admirably honest and staggeringly researched ... it is unlikely that after Anderson's exhaustive contribution, much more will be learned about Guevara". -- Los Angeles Times "An enduring achievement. Other biographies are in the works, but it is hard to imagine that any will match the volume and detail of the research here.... Guevara's victories andfailures, equally spectacular, are part of our common history.... Che lives, not only in this book but in the world". -- The Boston Globe


This paper offers new empirical evidence about the prospects of lower-income, US urban neighbourhoods during the 1990s. Using the Neighborhood Change Database, which offers a balanced panel of census tracts with consistent boundaries from 1970 to 2000 for all metropolitan areas in the US, evidence is found of a significant shift in the fortunes of lower-income, urban neighbourhoods during the 1990s. There was a notable increase in the 1990s in the proportion of lower-income and poor neighbourhoods experiencing a gain in economic status. Secondly, in terms of geographical patterns, it is found that this upgrading occurred throughout the country, not just in selected regions or cities. Finally, it is found that the determinants of changes in lower-income, urban neighbourhoods shifted during the 1990s. In contrast to earlier decades, both the share of Blacks and the poverty rate were positively related to subsequent economic gain in these neighbourhoods during the 1990s.


Perceptual grouping is an integral part of visual object recognition. It organizes elements within our visual field according to a set of heuristics (grouping principles), most of which are not well understood. To identify their temporal processing dynamics (i.e., to identify whether they rely on neuronal feedforward or recurrent activation), we introduce the primed flanker task that is based on a firm empirical and theoretical background. In three sets of experiments, participants responded to visual stimuli that were either grouped by (1) similarity of brightness, shape, or size, (2) symmetry and closure, or (3) Good Gestalt. We investigated whether these grouping cues were effective in rapid visuomotor processing (i.e., in terms of response times, error rates, and priming effects) and whether the results met theory-driven indicators of feedforward processing. (1) In the first set of experiments with similarity cues, we varied subjective grouping strength and found that stronger grouping in the targets enhanced overall response times while stronger grouping in the primes enhanced priming effects in motor responses. We also obtained differences between rapid visuomotor processing and the subjective impression with cues of brightness and shape but not with cues of brightness and size. These results show that the primed flanker task is an objective measure for comparing different feedforward-transmitted groupings. (2) In the second set of experiments, we used the task to study grouping by symmetry and grouping by closure that are more complex than similarity cues. We obtained results that were mostly in accordance with a feedforward model. Some other factors (line of view, orientation of the symmetry axis) were irrelevant for processing of symmetry cues. Thus, these experiments suggest that closure and (possibly) viewpoint-independent symmetry cues are extracted rapidly during the first feedforward wave of neuronal processing. (3) In the third set of experiments, we used the task to study grouping by Good Gestalt (i.e., visual completion in occluded shapes). By varying the amount of occlusion, we found that the processing was in accordance with a feedforward model only when occlusion was very limited. Thus, these experiments suggest that Good Gestalt is not extracted rapidly during the first feedforward wave of neuronal processing but relies on recurrent activation. I conclude (1) that the primed flanker task is an excellent tool to identify and compare the processing characteristics of different grouping cues by behavioral means, (2) that grouping strength and other factors are strongly modulating these processing characteristics, which (3) challenges a dichotomous classification of grouping cues based on feedforward vs. recurrent processing (incremental grouping theory, Roelfsema, 2006), and (4) that a focus on temporal processing dynamics is necessary to understand perceptual grouping.


Flanked by Cathedrals and Castles: Theology and its political problem This article is a refl ection on the theological-political problem (i.e. the question about the relationship between religion and politics) in modern society. It presupposes that this problem was created by modernism. Because modernism distinguished in a reductive fashion between religion and politics, modern society was left with the burning question of how to mediate between them. The fi rst part of the article focuses on a critical appraisal of the modern distinction. In different sub-sections it is argued that the modern distinction led to a reduction in meaning of both the religious and the political. However, the modern distinction cannot be maintained. Contrary to the modern distinction it is argued that the political is always already infi ltrated by the theological. Modernism cannot deliver on its promises. In the concluding section the argument is raised that the theological-political problem can be addressed if we as are willing to listen to the voice of tradition. According to tradition, desire (eros) reaches out from the lowest to the highest levels of reality. The relationship between the political and the theological is inscribed within the erotic curve of desire. While eros reaches out to and also fi nds fulfi lment in active political participation, this does not represent the end of its journey. Eros even reaches further, to the transcendent realms of philosophical contemplation and theological wisdom. In the concluding sections it is argued that both the political and the religious can again be experienced as glorious phenomena due to their erotic mutuality. Their mutuality is not (pace modernism) an argument against their own integrity, but precisely an argument in favour thereof. Die moderne wêreld staan in spanning met alle stede uit die oudheid, met alles wat kultuur verteenwoordig, met alles wat tot 'n stad behoort. (Charles Péguy) Author: Daniël P. (Danie) Goosen1 Affi liation: 1Fakulteit van Teologie, Universiteit van SuidAfrika, Suid-Afrika


Perhaps no economist was more vindicated by the global financial crisis than Hyman P. Minsky (1919–96). Although a handful of economists raised alarms as early as 2000, Minsky's warnings began a half-century earlier, with writings that set out a compelling theory of financial instability. Yet even today he remains largely outside mainstream economics; few people have a good grasp of his writings, and fewer still understand their full importance. Why Minsky Matters makes the maverick economist's critically valuable insights accessible to general readers for the first time. L. Randall Wray shows that by understanding Minsky we will not only see the next crisis coming but we might be able to act quickly enough to prevent it. As Wray explains, Minsky's most important idea is that "stability is destabilizing": to the degree that the economy achieves what looks to be robust and stable growth, it is setting up the conditions in which a crash becomes ever more likely. Before the financial crisis, mainstream economists pointed to much evidence that the economy was more stable, but their predictions were completely wrong because they disregarded Minsky's insight. Wray also introduces Minsky's significant work on money and banking, poverty and unemployment, and the evolution of capitalism, as well as his proposals for reforming the financial system and promoting economic stability. A much-needed introduction to an economist whose ideas are more relevant than ever, Why Minsky Matters is essential reading for anyone who wants to understand why economic crises are becoming more frequent and severe—and what we can do about it.


Abstract. This paper presents a detailed laboratory characterization of a thermal dissociation chemical ionization mass spectrometer (TD-CIMS) for the atmospheric measurement of Peroxyacetyl nitrate (PAN) and its homologues (PANs). PANs are efficiently dissociated in a heated inlet and the resulting peroxy acyl radicals are reacted with I − ions in a flow tube. The mass spectrometer detects the corresponding carboxylate ions. PAN, peroxypropionyl nitrate (PPN), peroxyisobutyryl nitrate (PiBN), peroxy-n-butyryl nitrate (PnBN), peroxyacryloyl nitrate (APAN), peroxycrotonyl nitrates (CPAN) and peroxymethacryloyl nitrate (MPAN) were cross-calibrated with both a dual channel GC/ECD and a total odd-nitrogen (NO y ) instrument for the NCAR TD-CIMS' typical aircraft operation conditions. In addition, the instrument sensitivity to a number of more exotic PANs (peroxyhydroxyacetyl nitrate, methoxyformyl peroxynitrate, and peroxybenzoyl nitrate) was evaluated qualitatively by comparisons with a long-path FTIR instrument. The sensitivity for PPN is slightly higher than that of PAN. Larger aliphatic and olefinic PAN compounds generally showed lower sensitivities. We postulate that these differences are owing to secondary reactions in the thermal decomposition region, which either reduce the yield of peroxy acyl radicals or cause losses of these radicals through intramolecular decomposition. The relative importance of these secondary reactions varies considerably between different PAN species. Results also indicate that the reaction of the larger peroxy acyl radicals with the ion-water cluster, I − (H 2 O)n proceeds about an order of magnitude faster than with I − alone, as has been observed for peroxy acetyl radicals. Sensitivity variations among the individual PAN species at very low water vapor were observed. The results call for careful evaluation of each PAN species to be measured and for each desired operating condition of a TD-CIMS instrument.


We will explore the computational complexity of satisfying certain sets of neighborhood conditions in graphs with various properties. More precisely, fix a radius $\rho$ and let $N(G)$ be the set of isomorphism classes of $\rho$-neighborhoods of vertices of $G$ where $G$ is a graph whose vertices are colored (not necessarily properly) by colors from a fixed finite palette. The root of the neighborhood will be the unique vertex at the "center" of the graph. Given a set $\mathcal{S}$ of colored graphs with a unique root, when is there a graph $G$ with $N(G)=\mathcal{S}$? Or $N(G) \subset \mathcal{S}$? What if $G$ is forced to be infinite, or connected, or both? If the neighborhoods are unrestricted, all these problems are recursively unsolvable; this follows from the work of Bulitko [Graphs with prescribed environments of the vertices. Trudy Mat. Inst. Steklov. , 133:78–94, 274, 1973]. In contrast, when the neighborhoods are cycle free, all the problems are in the class $\mathtt{P}$. Surprisingly, if $G$ is required to be a regular (and thus infinite) tree, we show the realization problem is NP -complete (for degree 3 and higher); whereas, if $G$ is allowed to be any finite graph, the realization problem is in P .


The construct of temperament is commonly viewed as the basic organization of personality, which is observable as early as infancy and becomes elaborated over the course of development as the individual's skills, abilities, cognitions, and motivations become more sophisticated (Calkins & Degnan, 2006; Rothbart, Ahadi, & Evans, 2000; Rothbart & Bates, 2006; Shiner & Caspi, 2003). Although temperament is thought to influence the development and expression of personality characteristics, Rothbart and Bates (2006) qualified this relation with the assertion that temperament focuses on reactive and self-regulatory processes and is only one component of a child's developing personality.


OBJECTIVE
We aim to investigate the efficacy of acupuncture for acute migraine attacks comparing with sham acupuncture.

DESIGN
The study was designed as a multicenter, single-blinded, randomized controlled clinical trial.

SETTING AND PATIENTS
From March 2007 to February 2009, 150 patients were randomly allocated to verum or sham acupuncture group in a ratio of 1:1.

INTERVENTIONS
Every patient received a verum or sham acupuncture treatment when having a migraine attack and, medications were allowed if the pain failed to be relieved two hours after the acupuncture.

OUTCOME MEASURES
The primary outcome was visual analog scale (VAS) scores for pain, ranging from 0 (no pain) to 10 (worst pain ever).

RESULTS
The mean VAS scores 24 hours after treatment decreased from 5.7 ± 1.4 to 3.3 ± 2.5 in the verum acupuncture group, and from 5.4 ± 1.3 to 4.7 ± 2.4 in the sham acupuncture group. Significant differences existed between the two groups (P = 0.001).

CONCLUSIONS
This trial suggested that verum acupuncture group was superior to sham acupuncture group on relieving pain and reducing the usage of acute medication.


Sensitivity studies are conducted regarding aerosol optical property retrieval from radiances measured by ground-based Sun-sky scanning radiometers of the Aerosol Robotic Network (AERONET). These studies focus on testing a new inversion concept for simultaneously retrieving aerosol size distribution, complex refractive index, and single- scattering albedo from spectral measurements of direct and diffuse radiation. The perturbations of the inversion resulting from random errors, instrumental offsets, and known uncertainties in the atmospheric radiation model are analyzed. Sun or sky channel miscalibration, inaccurate azimuth angle pointing during sky radiance measurements, and inaccuracy in accounting for surface reflectance are considered as error sources. The effects of these errors on the characterization of three typical and optically distinct aerosols with bimodal size distributions (weakly absorbing water-soluble aerosol, absorbing biomass-burning aerosol, and desert dust) are considered. The aerosol particles are assumed in the retrieval to be polydispersed homogeneous spheres with the same complex refractive index. Therefore we also examined how inversions with such an assumption bias the retrievals in the case of nonspherical dust aerosols and in the case of externally or internally mixed spherical particles with different refractive indices. The analysis shows successful retrieval of all aerosol characteristics (size distribution, complex refractive index, and single-scattering albedo), provided the inversion includes the data combination of spectral optical depth together with sky radiances in the full solar almucantar (with angular coverage of scattering angles up to 100" or more). The retrieval accuracy is acceptable for most remote sensing applications even in the presence of rather strong systematic or random uncertainties in the measurements. The major limitations relate to the characterization of low optical depth situations for all aerosol types, where high relative errors may occur in the direct radiation measurements of aerosol optical depth. Also, the results of tests indicate that a decrease of angular coverage of scattering (scattering angles of 75" or less) in the sky radiance results in the loss of practical information about refractive index. Accurate azimuth angle pointing is critical for the characterization of dust. Scattering by nonspherical dust particles requires special analysis, whereby approximation of the aerosol by spheres allows us to derive single-scattering albedo by inverting spectral optical depth together with sky radiances in the full solar almucantar. Inverting sky radiances measured in the first 40" scattering angle only, where nonspherical effects are minor, results in accurate retrievals of aerosol size distributions of nonspherical particles.


The reproductive system and the spermatozoon of Megadasys sterreri from Lanzarote (Canary Islands, Spain) were studied at structural and ultrastructural levels. The species is a simultaneous hermaphrodite with cross-fertilization and shows paired gonads, the male anterior and the female posterior, and both gametes mature in a caudo-cephalic direction. Sperm ducts converge on the midline and open into a ventral common pore. Two sexual accessory organs are present in the caudal trunk. A pipe-like frontal organ lies between the ovaries and the caudal organ, and is composed of a long, thin region connected to a large zone containing mature and degenerating spermatozoa. The cigar-like caudal organ is elongate, bulky and is made of an anterior glandulo-muscular region and a posterior muscular one. Spermatozoa are long, filiform cells formed by an acrosome, a nucleus-mitochondrial complex, and a flagellum. The long acrosome is composed of an apical twisted region and a basal straight region. The nucleo-mitochondrial complex is formed by a spring-shaped nucleus surrounding basally the mitochondrion and apically a granular material. The flagellum has a 9x2+2 axoneme, characterized by a dense and prominent central sheath surrounding the central tubules. Megadasys sterreri (Cephalodasyidae) shows the same reproductive layout as Crasiella (Planodasyidae): paired gonads, caudo-cephalic maturation of gametes, sperm ducts converging into a common ventral pore, and two sexual accessory organs. Also the spermatozoa ultrastructure shows two similarities in the two genera: a peculiar prominent central sheath in the axoneme and a similar structure of the basal region of the acrosome. Considering the likely polyphyletic nature of the family Cephalodasyidae, and the sister-taxon relationship of Megadasys and Crasiella that emerged from a recent molecular phylogenetic study, a close relationship between the two taxa appears to be very likely; consequently, we propose to remove Megadasys from the family Cephalodasyidae and affiliate it to the family Planodasyidae.