Product Summary: Body Awareness Resource Network (Barn) is a multimedia device designed and produced to shepherd adolescents (grades 6 through 12) toward positive lifestyles. BARN was researched and tested by a variety of professionals from the Center of Health Systems Research and Analysis of the University of Wisconsin at Madison and was funded by the Kellogg Foundation. Although no citations are offered, the manual (page 2) states that research evidence demonstrates
that students using BARN are:
• more likely to avoid risk-taking behaviors;
• more aware of the impact of bad choices;
• better able to examine attitudes and behavior;
• able to reduce stress and identify symptoms;
• more likely to support one another in dealing with difficult issues
Evaluation Summary: BARN is a slick multimedia device that will gain and retain the adolescent's attention. The material is divided into two series (four CDs in each series). None of the material can be rated as poor, but the quality of the presentation is uneven. When I first used it, I was disappointed to learn the device was not intended to be used on a server for multiple users. After closely examining the material, BARN has an optimum learning effect when used in small groups or individually with a supportive instructor nearby.


Background and purpose Inherently, IMRT treatment planning involves compromising between different planning goals. Multi-criteria IMRT planning directly addresses this compromising and thus makes it more systematic. Usually, several plans are computed from which the planner selects the most promising following a certain procedure. Applying Pareto navigation for this selection step simultaneously increases the variety of planning options and eases the identification of the most promising plan. Material and methods Pareto navigation is an interactive multi-criteria optimization method that consists of the two navigation mechanisms "selection" and "restriction". The former allows the formulation of wishes whereas the latter allows the exclusion of unwanted plans. They are realized as optimization problems on the so-called plan bundle – a set constructed from precomputed plans. They can be approximately reformulated so that their solution time is a small fraction of a second. Thus, the user can be provided with immediate feedback regarding his or her decisions.


Sponge diversity and community composition in bathyal cold water coral reefs (CWRs) were examined at 500-900 m depth on the southeastern slopes of Rockall Bank and the northwestern slope of Porcupine Bank, to the west of Ireland in 2004 and 2005 with boxcores. A total of 104 boxcore samples, supplemented with 10 trawl/dredge attempts, were analyzed for the presence and abundance of sponges, using microscopical examination of (sub)samples of collected coral branches, and semi-quantitative macroscopic examination. Approximate minimum size of identifi ed and counted sponge individuals was 1 mm. Literature data were added to the Porcupine Bank results to compensate for a less intensive sampling program in that location. Species richness and abundance were determined at local (sample diversity, pooled-sample diversity, local reef diversity), between-reef (diversity of two reef areas at 15 km distance), and regional scales (diversity of three reef areas over a distance of 200 km). Abiotic and biotic parameters including depth, the presence and cover of live coral, dead coral and sand, local reef, and orientation towards the nearest reef mound summit, were included in a constrained ordination technique (RDA); a Monte Carlo forward selection procedure was used to obtain signifi cant predictors of variation in composition. The results of this analysis were compared with unconstrained ordination (PCA) and cluster analysis. The presence of live coral, depth and the local reefs C1 and C3 proved to be signifi cant predictors of variation in sponge composition. The PCA and cluster analysis confi rmed these results. Sample species richness was consistently heterogeneous from zero species and individuals up to 57 species and 90 individuals per (boxcore) sample. Species richness of local reefs determined from pooled samples showed the three localities studied to have similar species richness, namely 105-122 species in each location. Species richness was highest in samples with relatively low live coral cover. As in the RDA, live coral presence and depth appeared to be responsible for most of the variation observed in the cluster results. Cluster analysis of Bray-Curtis dissimilarity values of the pooled samples of all three reef localities using presence / absence data of all available samples indicated that distance appeared to structure the composition of the sponge assemblages of the three reef mound areas, but much less so within and among local reefs. Bathyal reefs of the regions to the west of Ireland were found to have a combined sponge species richness of 191 species, exceeding the richness of individual reef mound areas by c. 38-45%. Sponge presence in CWRs is clearly structured and controlled by biotic and abiotic factors. In particular, live coral presence appears a signifi cant predictor of CWR sponge composition and diversity.


Adolf Glassbrenner (1810–1876) was a German humorist and satirist. The aim of this study is to show that Glassbrenner's writings were rooted within the abstract idealism of the Young Germans. Special focus lies on the period between 1840 and 1849, Glassbrenner's most active writing period, and representing most closely the elements of Humor and Tendenz. This study is of interest to everyone who wants to know more about the ideas behind the writings of Adolf Glassbrenner, but also to those who want to make a first acquaintance with this famous German writer.


Credit spreads are large, volatile and countercyclical, and recent empirical work suggests that risk premia, not expected credit losses, are responsible for these features. Building on the idea that corporate debt, while safe in ordinary recessions, is exposed to economic depressions, this paper embeds a trade-off theory of capital structure into a real business cycle model with a small, exogenously time-varying risk of economic disaster. The model replicates the level, volatility and cyclicality of credit spreads, and variation in the corporate bond risk premium amplifies macroeconomic fluctuations in investment, employment and GDP.


Sewall Wright's population structure statistic, FST, measured among samples of world populations is often 15% or less. This would indicate that 85% of genetic variation occurs within groups while only 15% can be attributed to allele frequency differences among groups. In this paper, we show that this low value reflects strong biases that result from violating hidden assumptions that define FST. These limitations on FST are demonstrated algebraically and in the context of analyzing dinucleotide repeat allele frequencies for a set of eight loci genotyped in eight human groups and in chimpanzees. In our analyses, estimates of FST fail to identify important variation. For example, when the analysis includes only humans, FST = 0.119, but adding the chimpanzees increases it only a little, FST = 0.183. By relaxing the underlying statistical assumptions, the results for chimpanzees become consistent with common knowledge, and we see a richer pattern of human genetic diversity. Some human groups are far more diverged than would be implied by standard computations of FST, while other groups are much less diverged. We discuss the relevance of these findings to the application of biological race concepts to humans. Four different race concepts are considered: typological, population, taxonomic, and lineage. Surprisingly, a great deal of genetic variation within groups is consistent with each of these concepts. However, none of the race concepts is compatible with the patterns of variation revealed by our analyses.


Production in the Innovation Economy emerges from several years of interdisciplinary research at MIT on the links between manufacturing and innovation in the United States and the world economy. (This ambitious research project is described in Making in America: From Innovation to Market, also published in 2013 by the MIT Press.) Authors from political science, economics, business, employment and operations research, aeronautics and astronautics, mechanical engineering, and nuclear engineering come together to explore the extent to which manufacturing is key to an innovative and vibrant economy. Chapters include survey research on gaps in worker skill development and training; discussions of coproduction with Chinese firms and participation in complex manufacturing projects in China; analyses of constraints facing American start-up firms involved in manufacturing; proposals for a future of distributed manufacturing and a focus on product variety as a marker of innovation; and forecasts of powerful advanced manufacturing technologies on the horizon. The chapters show that although the global distribution of manufacturing is not an automatic loss for the United States, gains from the colocation of manufacturing and innovation have not disappeared. The book emphasizes public policy that encourages colocation through, for example, training programs, supplements to private capital, and interfirm cooperation in industry consortia. Such approaches can help the United States not only to maintain manufacturing capacity but also, crucially, to maximize its innovative potential.


As long as corporations have the freedom to engage in political spending - a freedom expanded by the Supreme Court's recent decision in Citizens United v. FEC - the law will have to provide rules governing how corporations decide to exercise that freedom. This paper, which was written for the Harvard Law Review's 2010 Supreme Court issue, focuses on what rules should govern public corporations' decisions to spend corporate funds on politics. Our paper is dedicated to Professor Victor Brudney, who long ago anticipated the significance of corporate law rules for regulating corporate speech. Under existing corporate-law rules, corporate political speech decisions are subject to the same rules as ordinary business decisions. Consequently, political speech decisions can be made without input from shareholders, a role for independent directors, or detailed disclosure - the safeguards that corporate law rules establish for special corporate decisions. We argue that the interests of directors and executives may significantly diverge from those of shareholders with respect to political speech decisions, and that these decisions may carry special expressive significance from shareholders. Accordingly, we suggest, political speech decisions are fundamentally different from, and should not be subject to the same rules as, ordinary business decisions. We assess how lawmakers could design special rules that would align corporate political speech decisions with shareholder interests. In particular, we propose the adoption of rules that (i) provide shareholders a role in determining the amount and targets of corporate political spending; (ii) require that political speech decisions be overseen by independent directors; (iii) allow shareholders to opt out of - that is, either tighten or relax - either of these rules; and (iv) mandate disclosure to shareholders of the amounts and beneficiaries of any political spending by the company, either directly or indirectly through intermediaries. We explain how such rules can benefit shareholders. We also explain why such rules are best viewed not as limitations on corporations' speech rights but rather as a method for determining whether a corporation should be regarded as wishing to engage in political speech. The proposed rules would thus protect, rather than abridge, corporations' First Amendment rights. We also discuss an additional objective that decisional rules concerning corporations' political speech decisions may seek to serve: protecting minority shareholders from forced association with political speech that is supported by the majority of shareholders. We discuss the economic and First Amendment interests of minority shareholders that lawmakers may seek to protect. We suggest that decisional rules addressing political spending opposed by a sufficiently large minority of shareholders are likely to be constitutionally permissible, and we discuss how such rules could be designed by lawmakers.


In a number of recent controversies, from sports teams' use of Indian mascots to the federal government's desecration of sacred sites, American Indians have lodged charges of "cultural appropriation" or the unauthorized use by members of one group of the cultural expressions and resources of another. While these and other incidents make contemporary headlines, American Indians often experience these claims within a historical and continuing experience of dispossession. For hundreds of years, the U.S. legal system has sanctioned the taking and destruction of Indian lands, artifacts, bodies, religions, identities, and beliefs, all toward the project of conquest and colonization. Indian resources have been devalued by the law and made available for non-Indians to use for their own purposes. Seeking redresses for the losses caused by these actions, tribes have brought claims under a variety of laws, from trademark and copyright to the First Amendment and Fifth Amendment, and some have been more successful than others. As a matter of property law, courts have compensated — albeit incompletely — the taking of certain Indian lands and have also come to recognize tribal interests in human remains, gravesites, and associated artifacts. When it comes to intangible property, however, the situation is more complicated. It is difficult for legal decision makers and scholars alike to understand why Indian tribes should be able to regulate the use of Indian names, symbols, and expressions. Indeed, non-Indians often claim interests, sounding in free speech and the public domain, in the very same resources. To advance understanding of this contested area of law, this Article situates intangible cultural property claims in a larger history of the legal dispossession of Indian property — a phenomenon we call "Indian appropriation." It then evaluates these claims vis-a-vis prevailing legal doctrine and offers a normative view of solutions, both legal and extralegal.


In this article, I describe agent-centered search (also called real-time search or local search) and illustrate this planning paradigm with examples. Agent-centered search methods interleave planning and plan execution and restrict planning to the part of the domain around the current state of the agent, for example, the current location of a mobile robot or the current board position of a game. These methods can execute actions in the presence of time constraints and often have a small sum of planning and execution cost, both because they trade off planning and execution cost and because they allow agents to gather information early in nondeterministic domains, which reduces the amount of planning they have to perform for unencountered situations. These advantages become important as more intelligent systems are interfaced with the world and have to operate autonomously in complex environments. Agent-centered search methods have been applied to a variety of domains, including traditional search, strips-type planning, moving-target search, planning with totally and partially observable Markov decision process models, reinforcement learning, constraint satisfaction, and robot navigation. I discuss the design and properties of several agent-centered search methods, focusing on robot exploration and localization.


When published in 1981, The Mismeasure of Man was immediately hailed as a masterwork, the ringing answer to those who would classify people, rank them according to their supposed genetic gifts and limits. And yet the idea of innate limits-of biology as destiny-dies hard, as witness the attention devoted to The Bell Curve, whose arguments are here so effectively anticipated and thoroughly undermined by Stephen Jay Gould. In this edition Dr. Gould has written a substantial new introduction telling how and why he wrote the book and tracing the subsequent history of the controversy on innateness right through The Bell Curve. Further, he has added five essays on questions of The Bell Curve in particular and on race, racism, and biological determinism in general. These additions strengthen the book's claim to be, as Leo J. Kamin of Princeton University has said, "a major contribution toward deflating pseudo-biological 'explanations' of our present social woes."


Neutronic coupling with Computational Fluid Dynamics (CFD) has been under development within the US DOE sponsored "Nuclear Simulation Hub". The method of characteristics (MOC) neutronics code DeCART ([Joo, 2004], [Kochunas, 2009]) under development at the University of Michigan was coupled with the CFD code STAR-CCM+ to achieve more accurate predictions of fuel assembly performance. At Westinghouse, lower order, neutronic codes such as the nodal code ANC have been coupled to thermal-hydraulics codes such the subchannel code VIPRE to predict the heat flux and fuel nuclear behavior. However, a more detailed neutronics and temperature / fluid field simulation of fuel assembly models which includes explicit representation of spacer grids would considerably improve the design and assessment of new fuel assembly designs. Coupled STAR-CCM+ / DeCART calculations have been performed for various representative three-dimensional models with explicit representation of spacer grids with mixing vanes. The high fidelity results have been compared to lower order simulations. The coupled CFD/MOC solution has provided a more truthful model which includes a more accurate representation of all the important physics such as fission energy, heat convection, heat conduction, and turbulence. Of particular significance is the ability to assess the effects of the mixing grid on the coolant temperature and density distribution using coupled thermal/fluids and neutronic solutions. A more precise cladding temperature can be derived by this approach which will also enable more accurate prediction of departure from nucleate boiling (DNB), as well as a better understanding of DNB margin and crud build up on the fuel rod.


The role of mitochondrial DNA (mtDNA) mutations and mtDNA recombination in cancer cell proliferation and developmental biology remains controversial. While analyzing the mtDNAs of several mouse L cell lines, we discovered that every cell line harbored multiple mtDNA mutants. These included four missense mutations, two frameshift mutations, and one tRNA homopolymer expansion. The LA9 cell lines lacked wild-type mtDNAs but harbored a heteroplasmic mixture of mtDNAs, each with a different combination of these variants. We isolated each of the mtDNAs in a separate cybrid cell line. This permitted determination of the linkage phase of each mtDNA and its physiological characteristics. All of the polypeptide mutations inhibited their oxidative phosphorylation (OXPHOS) complexes. However, they also increased mitochondrial reactive oxygen species (ROS) production, and the level of ROS production was proportional to the cellular proliferation rate. By comparing the mtDNA haplotypes of the different cell lines, we were able to reconstruct the mtDNA mutational history of the L-L929 cell line. This revealed that every heteroplasmic L-cell line harbored a mtDNA that had been generated by intracellular mtDNA homologous recombination. Therefore, deleterious mtDNA mutations that increase ROS production can provide a proliferative advantage to cancer or stem cells, and optimal combinations of mutant loci can be generated through recombination.


Frontline health care workers have always been especially vulnerable to the perpetual tides of health care 'reform, ' but in the mid-1990s in New York City, they bore the brunt of change in a new way. They were obliged to take on additional work, take lessons in recalibrating their attitudes, and, when those steps failed to bring about the desired improvements, take advantage of training programs that would ostensibly lead to better jobs. Such health care workers not only became targets of pro-market and restructuring policies but also were blamed for many of the problems created by those policies, from the deteriorating conditions of patient care to the financial vulnerability of entire institutions. In Never Good Enough, Ariel Ducey describes some of the most heavily funded training programs, arguing that both the content of many training and education programs and the sheer commitment of time they require pressure individual health care workers to compensate for the irrationalities of America's health care system, for the fact that caring labor is devalued, and for the inequities of an economy driven by the relentless creation of underpaid service jobs. In so doing, the book also analyzes the roles that unions particularly SEIU 1199 in New York and the city's academic institutions have played in this problematic phenomenon. In her thoughtful and provocative critique of job training in the health care sector, Ariel Ducey explores the history and the extent of job training initiatives for health care workers and lays out the political and economic significance of these programs beyond the obvious goal of career advancement. Questioning whether job training improves either the lives of workers or the quality of health care, she explains why such training persists, focusing in particular on the wide scope of its "emotional" benefits. The book is based on Ducey's three years as an ethnographer in several hospitals and in-depth interviews with key players in health care training. It argues that training and education cannot be a panacea for restructuring whether in the health care sector or the economy as a whole."


Hepcidin controls the levels and distribution of iron, an element whose availability can influence the outcome of infections. We investigated hepcidin regulation by infection-associated cytokines, pathogen-derived molecules, and whole pathogens in vitro and in vivo. We found that IL-22, an effector cytokine implicated in responses to extracellular infections, caused IL-6-independent hepcidin up-regulation in human hepatoma cells, suggesting it might represent an additional inflammatory hepcidin agonist. Like IL-6, IL-22 caused phosphorylation of STAT3 and synergized with BMP6 potentiating hepcidin induction. In human leukocytes, IL-6 caused potent, transient hepcidin up-regulation that was augmented by TGF-β1. Pathogen-derived TLR agonists also stimulated hepcidin, most notably the TLR5 agonist flagellin in an IL-6-dependent manner. In contrast, leukocyte hepcidin induction by heat-killed Candida albicans hyphae was IL-6-independent, but partially TGF-β-dependent. In a murine acute systemic candidiasis model, C albicans strongly stimulated hepcidin, accompanied by a major reduction in transferrin saturation. Similarly, hepcidin was up-regulated with concomitant lowering of serum iron during acute murine Influenza A/PR/8/34 virus (H1N1) infection. This intracellular pathogen also stimulated hepcidin expression in leukocytes and hepatoma cells. Together, these results indicate that hepcidin induction represents a component of the innate immune response to acute infection, with the potential to affect disease pathogenesis.


For forty years beginning in the late 1960s, the University of Michigan Law School conducted annual surveys of its alumni. The project included fifty successive graduating classes, with all but the most recent classes surveyed more than once. Over thirteen thousand alumni participated. Over the forty years, American legal education and the American legal profession underwent huge changes. When the study began, there were almost no women or minority students at Michigan and very few in the country as a whole. The vast majority of all students and lawyers were white and male. By the end, white men constituted far less than half of the students not only at Michigan but also at the huge majority of other law school in the United States. Similarly at the beginning of the survey, the overwhelming majority of Michigan graduates and law-school graduates in general began their careers in solo practice or in very small law firms. Few firms with more than one hundred lawyers even existed. By the end, more than half of Michigan students started their careers in firms of more than two hundred, and many started in firms of over a thousand.This article focuses on a theme that runs through all the graduating years – the varied satisfaction of graduates with their careers. Our findings, though necessarily limited to one school's graduates, seem likely to apply to the experiences of most practitioners regardless of the school from which they graduated. Some findings may be surprising. We have found, for example, that, among Michigan's graduates five, fifteen and twenty-five years out of law school, for both men and women, overall work satisfaction is much more closely related to perceptions of the social value of their work and the quality of their relations with co-workers than it is to their satisfaction with income or with their prestige in the community. This finding helps make more explicable another of our findings – that, on the whole, women practitioners are somewhat more satisfied than men – since it appears that, in general, women place a higher priority than men finding employment in settings where the work (as they view it) has comparatively high social value and where they are likely to have especially good relations with coworkers.


Corporate law matters. Traditionally seen as the narrow study of the relationship between managers and shareholders, corporate law has frequently been relegated to the margins of legal discussion and political debate. The marginalization of corporate law has been especially prevalent among those who count themselves as progressives. While this has not always been true, in the last generation or so progressives have focused on constitutional law and other areas of so-called public law, and have left corporate law to adherents of neoclassical law and economics. To the extent that the behavior of businesses has been a matter of concern, that concern has been aimed at adjusting the rules of environmental law, administrative law, employment law, and the like. The time has come to reclaim corporate law as a topic of wide debate and progressive concern. Instead of being a narrow discipline with limited implications, corporate law determines the rules governing the organization, purposes, and limitations of some of the largest and most powerful institutions in the world. By establishing the obligations and priorities of companies and their management, corporate law affects everything from employees' wage rates, to whether companies will try to skirt environmental laws, to whether they will tend to look the other way when doing business with governments that violate human rights. Corporate law also determines whether corporations will look at the long term or the short term, whether they will see themselves as owing any responsibilities to stakeholders other than shareholders, and indeed whether they consider themselves to be constrained by law at all. The main thesis of this article is that corporate law is much more important than most progressives realize. Corporate law can be part of the wider task of regulating corporations in particular and business in general. The rules that govern corporations should more expressly take into account the fact that corporations are collective enterprises that demand investment from a number of different sources. These investments come in various forms: inflows of capital from shareholders and creditors; cash inflows from customers; infrastructural support from governments and communities; and effort, intelligence, and direction from employees. Whereas corporate law presently focuses on the financial investments of shareholders only, it could, and should, be adjusted to take into account the contributions of non-equity investors. Adjusted in this way, corporate law will make it more possible for corporations to serve their purpose of facilitating the creation of wealth, broadly defined and distributed.


First published in 1949 and praised in The New York Times Book Review as "a trenchant book, full of vigor and bite," A Sand County Almanac combines some of the finest nature writing since Thoreau with an outspoken and highly ethical regard for America's relationship to the land. Written with an unparalleled understanding of the ways of nature, the book includes a section on the monthly changes of the Wisconsin countryside; another part that gathers informal pieces written by Leopold over a forty-year period as he traveled through the woodlands of Wisconsin, Iowa, Arizona, Sonora, Oregon, Manitoba, and elsewhere; and a final section in which Leopold addresses the philosophical issues involved in wildlife conservation. As the forerunner of such important books as Annie Dillard's Pilgrim at Tinker Creek, Edward Abbey's Desert Solitaire, and Robert Finch's The Primal Place, this classic work remains as relevant today as it was forty years ago.


This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor the United States Atomic Energy Commission, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or repreaents that its use would not infringe privately owned rights. CONCENTRATION FLUCTUATION AND PEAK-TO-MEAN


Two years before Beatrice Prior made her choice, the sixteen-year-old son of Abnegation's faction leader did the same. Tobias's transfer to Dauntless is a chance to begin again. Here, he will not be called the name his parents gave him. Here, he will not let fear turn him into a cowering child.

Newly christened "Four," he discovers during initiation that he will succeed in Dauntless. Initiation is only the beginning, though; Four must claim his place in the Dauntless hierarchy. His decisions will affect future initiates as well as uncover secrets that could threaten his own future—and the future of the entire faction system.

Two years later, Four is poised to take action, but the course is still unclear. The first new initiate who jumps into the net might change all that. With her, the way to righting their world might become clear. With her, it might become possible to be Tobias once again.

From #1 New York Times bestselling author Veronica Roth comes a companion volume to the worldwide bestselling DIVERGENT series, told from the per-spective of the immensely popular character Tobias. The four pieces included here—THE TRANSFER, THE INITIATE, THE SON, and THE TRAITOR—plus three additional exclusive scenes, give readers an electrifying glimpse into the history and heart of Tobias, and set the stage for the epic saga of the DIVERGENT trilogy.


I demonstrate that hyperbolic metamaterials may provide the solution to the long-standing prob- lem of the fundamental diffraction limit plaguing conventional microscopy and optical imaging sys- tems. Presented here is the formalism of the theory, classical electrodynamics, used to describe the diffraction limit and sub-wavelength imaging using hyperbolic metamaterials. Effective medium theory is then derived and put forth as a design method for such hyperbolic metamaterials. I then outline the design of a planar device based on a hyperbolic metamaterial for use in infrared mi- croscopy, and present numerical simulations to demonstrate the behaviour and performance of the device. The device employs multilayers of InGaAs/AlInAs and is capable of sub-diffraction imaging resolution in the wavelength range of 8.8 - 10.5 μm. I show that high spatial frequency waves, which normally decay in vacuum, are allowed to propagate and reach the far-field in a hyperbolic meta- material. Using a Green's function formalism to describe optical sources, sub-wavelength imaging capabilities of hyperbolic metamaterials is shown. Finally, potential device applications using the designed metamaterial are motivated.


Abstract. In past modeling studies, it has generally been assumed that the predominant mechanism for nucleation of ice in the uppermost troposphere is homogeneous freezing of aqueous aerosols. However, recent in situ and remote-sensing measurements of the properties of cirrus clouds at very low temperatures in the tropical tropopause layer (TTL) are broadly inconsistent with theoretial predictions based on the homogeneous freezing assumption. The nearly ubiquitous occurence of gravity waves in the TTL makes the predictions from homogeneous nucleation theory particularly difficult to reconcile with measurements. These measured properties include ice number concentrations, which are much lower than theory predicts; ice crystal size distributions, which are much broader than theory predicts; and cloud extinctions, which are much lower than theory predicts. Although other explanations are possible, one way to limit ice concentrations is to have on the order of 50 L−1 effective ice nuclei (IN) that could nucleate ice at relatively low supersaturations. We suggest that ammonium sulfate particles, which would be dry much of the time in the cold TTL, are a potential IN candidate for TTL cirrus. However, this mechanism remains to be fully quantified for the size distribution of ammonium sulfate (possibly internally mixed with organics) actually present in the upper troposphere. Possible implications of the observed cloud microphysical properties for ice sedimentation, dehydration, and cloud persistence are also discussed.


An axisymmetric full Navier-Stokes computational fluid dynamics (CFD) study was conducted to examine nozzle exhaust jet plume effects on the sonic boom signature of a supersonic aircraft. A simplified axisymmetric nozzle geometry, representative of the nozzle on the NASA Dryden NF-15B Lift and Nozzle Change Effects on Tail Shock (LaNCETS) research airplane, was considered. The highly underexpanded nozzle flow is found to provide significantly more reduction in the tail shock strength in the sonic boom N-wave pressure signature than perfectly expanded and overexpanded nozzle flows. A tail shock train in the sonic boom signature, similar to what was observed in the LaNCETS flight data, is observed for the highly underexpanded nozzle flow. The CFD results provide a detailed description of the nozzle flow physics involved in the LaNCETS nozzle at different nozzle expansion conditions and help in interpreting LaNCETS flight data as well as in the eventual CFD analysis of a full LaNCETS aircraft. The current study also provided important information on proper modeling of the LaNCETS aircraft nozzle. The primary objective of the current CFD research effort was to support the LaNCETS flight research data analysis effort by studying the detailed nozzle exhaust jet plume s imperfect expansion effects on the sonic boom signature of a supersonic aircraft. Figure 1 illustrates the primary flow physics present in the interaction between the exhaust jet plume shock and the sonic boom coming off of an axisymmetric body in supersonic flight. The steeper tail shock from highly expanded jet plume reduces the dip of the sonic boom N-wave signature. A structured finite-volume compressible full Navier-Stokes CFD code was used in the current study. This approach is not limited by the simplifying assumptions inherent in previous sonic boom analysis efforts. Also, this study was the first known jet plume sonic boom CFD study in which the full viscous nozzle flow field was modeled, without coupling to a sonic boom propagation analysis code, from the stagnation chamber of the nozzle to the far field external flow, taking into account all nonisentropic effects in the shocks, boundary layers, and free shear layers, and their interactions at distances up to 30 times the nozzle exit diameter from the jet centerline. A CFD solution is shown in Figure 2. The flow field is very complicated and multi-dimensional, with shock-shock and shockplume interactions. At the time of this reporting, a full three-dimensional CFD study was being conducted to evaluate the effects of nozzle vectoring on the aircraft tail shock strength.


During the 1990s, rugby union formation in the Republic of South Africa developed rapidly from a system of strict amateurism to one of professionalism. Professional participants in the sport received salaries for participation, and rugby became a business like any other. As in all forms of business, rugby had to be regulated more efficiently than had previously been the case. Tighter regulations were instituted by governing bodies, and ultimately labour legislation became applicable to professional rugby. A professional sportsman or woman participating in a team sport is generally considered an employee. This means that the same principles that govern employees in general should also apply to professional sportsmen and women. The exact nature of the "player's contract", a term generally used to describe the contract of employment between a professional sportsman or sportswoman and his or her employer, deserves closer attention. It has been argued with much merit that the "player's contract", while in essence a contract of employment, possesses certain sui generis characteristics. The first aim of this article is to demonstrate how this statement is in fact a substantial one. If it is concluded that the "player's contract" is in fact a sui generis contract of employment, the most suitable remedy in case of breach of contract must be determined. The second aim of this article is to indicate why the remedy of specific performance, which is generally not granted in cases where the defaulting party has to provide services of a personal nature, is the most suitable remedy in case of breach of "player's contracts". To substantiate this statement, recent applicable case law is investigated and discussed, particularly the recent case of Vrystaat Cheetahs (Edms) Beperk v Mapoe. Suggestions are finally offered as to how breach of "player's contracts" should be approached by South African courts in future.


Improved characterization of aerosol properties in the vicinity of clouds is important for better understanding two critical aspects of climate: aerosol–cloud interactions and the direct radiative effect of aerosols. Satellite measurements have provided important insights into aerosol properties near clouds, but also suggested that the observations can be affected by 3-D radiative processes and instrument blurring not considered in current data interpretation methods. This study examines systematic cloud-related changes in particle properties and radiation fields that influence satellite measurements of aerosols in the vicinity of low-level maritime clouds. For this, the paper presents a statistical analysis of a yearlong global dataset of co-located MODIS and CALIOP observations and theoretical simulations. The results reveal that CALIOP-observed aerosol particle size and optical thickness, and MODIS-observed solar reflectance increase systematically in a wide transition zone around clouds. It is estimated that near-cloud changes in particle populations – including both aerosols and undetected cloud particles – are responsible for roughly two thirds of the observed increase in 0.55 μm MODIS reflectance. The results also indicate that 3-D radiative processes significantly contribute to near-cloud reflectance enhancements, while instrument blurring contributes significantly only within 1 km from clouds and then quickly diminishes with distance from clouds.


1 online resource (PDF, 135 pages). Submitted May 2005 as a Plan B paper in partial fulfillment of the requirements for a master's degree in English as a Second Language from the University of Minnesota.


We prove a conjecture of Irving Kaplansky which asserts that between any pair of consecutive positive squares there is a set of distinct integers whose product is twice a square. Along similar lines, our main theorem asserts that if prime $p$ divides some integer in $[z,z+3\sqrt{z/2}+1)$ (with $z\geq 11$) then there is a set of integers in the interval whose product is $p$ times a square. This is probably best possible, because it seems likely that there are arbitrarily large counterexamples if we shorten the interval to $[z,z+3\sqrt{z/2})$.


We study here hot nuclear matter in the quark meson coupling model which incorporates explicitly quark degrees of freedom, with quarks coupled to scalar and vector mesons. The equation of state of nuclear matter including the composite nature of the nucleons is calculated at finite temperatures. The calculations are done taking into account the medium-dependent bag constant. Nucleon properties at finite temperatures as calculated here are found to be appreciably different from the value at T=0. {copyright} {ital 1997} {ital The American Physical Society}


First you'll learn how to build out your shared, virtual, or dedicated host. Then, you'll see how to build your applications for production and deploy them with one step, every time. Deploying Rails Applications will take you from a simple shared host through a highly scalable clustered and balanced setup with Nginx.See how to tell whether you've bought enough firepower, and learn how to optimize your Rails projects applications in a systemic, rational way. Take advantage of advanced caching techniques, and become and expert with the latest servers in Nginx and Mongrel. Don't worry. You'll get a dose of Apache too.Not only will you learn how to configure your production environment, you'll also see how to monitor it with free, automated tools that can restart your servers when the memory use gets too high for comfort. You'll see how to take a performance baseline, profile for bottlenecks, and solve the most common performance problems you're likely to see.You'll learn: Everything from source control and migrations to Capistrano, rake tasks and beyond.Directly from authors who run EngineYard, one of the best Rails hosts in the business.How to deploy your applications to multiple production servers with a single command using Capistrano.How to setup a Rails/Nginx/Mongrel cluster for applications with high scalabilty needs....and more!


"Management Extra" brings all the best management thinking together in one package. The series fuses key ideas with applied activities to help managers examine and improve how they work in practice. "Management Extra" is an exciting, new approach to management development. The books provide the basis for self-paced learning at level 4/5. The flexible learning structure allows busy participants to study at their own convenience, minimising time away from the job. The programme allows trainers to quickly plan and deliver high quality, business-led courses. Trainers can select materials to meet the needs of their delegates, clients, and budget. Each book is divided into themes of ideal length for delivering in a training session. Each theme has a range of activities for delegates to complete, putting the training into context and relating it to their own situation and business.The books lively style will stimulate further interest in the subjects covered. Guides for further reading and valuable web references provide a lead-in to further research. "Management Extra" is based on the NVQ framework to ease the creation of Diploma, Post Graduate Diploma or NVQ programmes for managers. It is accredited with all leading awarding bodies. It is authoritative but contains accessible and lively material. It provides a new, exciting and flexible approach to management development.


The philosopher Philo was born about 20 BCE to a prominent Jewish family in Alexandria, the chief home of the Jewish Diaspora as well as the chief center of Hellenistic culture; he was trained in Greek as well as Jewish learning. In attempting to reconcile biblical teachings with Greek philosophy he developed ideas that had wide influence on Christian and Jewish religious thought. The Loeb Classical Library edition of the works of Philo is in ten volumes and two supplements, distributed as follows. Volume I: Creation; Interpretation of Genesis II and III. II: On the Cherubim; The Sacrifices of Abel and Cain; The Worse Attacks the Better; The Posterity and Exile of Cain; On the Giants. III: The Unchangeableness of God; On Husbandry; Noah's Work as a Planter; On Drunkenness; On Sobriety. IV: The Confusion of Tongues; The Migration of Abraham; The Heir of Divine Things; On the Preliminary Studies. V: On Flight and Finding; Change of Names; On Dreams. VI: Abraham; Joseph; Moses. VII: The Decalogue; On Special Laws Books IIII. VIII: On Special Laws Book IV; On the Virtues; Rewards and Punishments. IX: Every Good Man Is Free; The Contemplative Life; The Eternity of the World; Against Flaccus; Apology for the Jews; On Providence. X: On the Embassy to Gaius; indexes. Supplement I: Questions on Genesis. II: Questions on Exodus; index to supplements.


"I was fortunate indeed to have worked with a fantastic team on the design and implementation of the concurrency features added to the Java platform in Java 5.0 and Java 6. Now this same team provides the best explanation yet of these new features, and of concurrency in general. Concurrency is no longer a subject for advanced users only. Every Java developer should read this book." --Martin Buchholz JDK Concurrency Czar, Sun Microsystems"For the past 30 years, computer performance has been driven by Moore's Law; from now on, it will be driven by Amdahl's Law. Writing code that effectively exploits multiple processors can be very challenging. Java Concurrency in Practice provides you with the concepts and techniques needed to write safe and scalable Java programs for today's--and tomorrow's--systems." --Doron Rajwan Research Scientist, Intel Corp"This is the book you need if you're writing--or designing, or debugging, or maintaining, or contemplating--multithreaded Java programs. If you've ever had to synchronize a method and you weren't sure why, you owe it to yourself and your users to read this book, cover to cover." --Ted Neward Author of Effective Enterprise Java"Brian addresses the fundamental issues and complexities of concurrency with uncommon clarity. This book is a must-read for anyone who uses threads and cares about performance." --Kirk Pepperdine CTO, JavaPerformanceTuning.com"This book covers a very deep and subtle topic in a very clear and concise way, making it the perfect Java Concurrency reference manual. Each page is filled with the problems (and solutions!) that programmers struggle with every day. Effectively exploiting concurrency is becoming more and more important now that Moore's Law is delivering more cores but not faster cores, and this book will show you how to do it." --Dr. Cliff Click Senior Software Engineer, Azul Systems"I have a strong interest in concurrency, and have probably written more thread deadlocks and made more synchronization mistakes than most programmers. Brian's book is the most readable on the topic of threading and concurrency in Java, and deals with this difficult subject with a wonderful hands-on approach. This is a book I am recommending to all my readers of The Java Specialists' Newsletter, because it is interesting, useful, and relevant to the problems facing Java developers today." --Dr. Heinz Kabutz The Java Specialists' Newsletter"I've focused a career on simplifying simple problems, but this book ambitiously and effectively works to simplify a complex but critical subject: concurrency. Java Concurrency in Practice is revolutionary in its approach, smooth and easy in style, and timely in its delivery--it's destined to be a very important book." --Bruce Tate Author of Beyond Java"Java Concurrency in Practice is an invaluable compilation of threading know-how for Java developers. I found reading this book intellectually exciting, in part because it is an excellent introduction to Java's concurrency API, but mostly because it captures in a thorough and accessible way expert knowledge on threading not easily found elsewhere." --Bill Venners Author of Inside the Java Virtual MachineThreads are a fundamental part of the Java platform. As multicore processors become the norm, using concurrency effectively becomes essential for building high-performance applications. Java SE 5 and 6 are a huge step forward for the development of concurrent applications, with improvements to the Java Virtual Machine to support high-performance, highly scalable concurrent classes and a rich set of new concurrency building blocks. In Java Concurrency in Practice, the creators of these new facilities explain not only how they work and how to use them, but also the motivation and design patterns behind them.However, developing, testing, and debugging multithreaded programs can still be very difficult; it is all too easy to create concurrent programs that appear to work, but fail when it matters most: in production, under heavy load. Java Concurrency in Practice arms readers with both the theoretical underpinnings and concrete techniques for building reliable, scalable, maintainable concurrent applications. Rather than simply offering an inventory of concurrency APIs and mechanisms, it provides design rules, patterns, and mental models that make it easier to build concurrent programs that are both correct and performant.This book covers: Basic concepts of concurrency and thread safety Techniques for building and composing thread-safe classes Using the concurrency building blocks in java.util.concurrent Performance optimization dos and don'ts Testing concurrent programs Advanced topics such as atomic variables, nonblocking algorithms, and the Java Memory Model


Advances in Imaging & Electron Physics
merges two long-running serials?Advances in Electronics & Electron Physics and Advances in Optical & Electron Microscopy.
The series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science, and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains.

Contains contributions from leading authorities on the subject matter
Informs and updates on all the latest developments in the field of imaging and electron physics
Provides practitioners interested in microscopy, optics, image processing, mathematical morphology, electromagnetic fields, electron, and ion emission with a valuable resource
Features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science. and digital image processing


In the mid-1990s, the crime scene toolkit was revolutionised by the introduction of DNA-based analyses such as the polymerase chain reaction, low copy number DNA analysis, short-tandem repeat typing, pulse-field gel electrophoresis and variable number tandem repeat. Since then, methodological advances in other disciplines, especially molecular microbial ecology, can now be adapted for cutting-edge applications in forensic contexts. Despite several studies and discussions, there is, however, currently very little evidence of these techniques' adoption at the contemporary crime scene. Consequently, this article discusses some of the popular 'omics' and their current and potential exploitations in the 'forensic ecogenomics' of body decomposition in a crime scene. Thus, together with published supportive findings and discourse, knowledge gaps are identified. These then justify the need for more comprehensive, directed, concerted and global research towards state-of-the-art microecophysiology method application and/or adaptation for subsequent successful exploitations in this additional context of microbial forensics.


Energy conservation in buildings plays a vital role for sustainable development of societies and nations. Although, newer buildings in developing nations are being constructed using energy conservation approach, existing buildings have higher energy demand to meet the desired comfort. Excessive energy demand for cooling the built environment is a major problem over most of the arid climatic zones. The problem is predominant in all the top storied buildings which are directly under exposed roof condition. In order to reduce the overheating of the roof surface a composite combination of reflecting-cuminsulating (R-I) material was developed. The sustainable materials viz., expanded polystyrene (construction waste), saw dust (industrial waste), and the false ceiling panels prepared from industrial waste were used for the development of sustainable RI material. The R-I material was retrofitted over the existing roof of a model room in an educational building over composite climate (Nagpur, India) and was analyzed experimentally for the period of a year. The thermal resistance of the overall roof assembly was increased from 0.28 to 0.55 m² K/W, which in turn helped to achieve 16% of the duration of the year under thermal comfort. The developed R-I material has also an advantage of low cost (INR 900 per sq. m.) of installation as well as light weight (50 kg/m²) retrofitting solution. The R-I product can further be applied on larger roof areas by the designers to reduce the cooling load of the built environment as well as increase the occupants comfort over the local climatic zone.


Minwise hashing is a standard technique in the context of search for efficiently computing set similarities. The recent development of b-bit minwise hashing provides a substantial improvement by storing only the lowest b bits of each hashed value. In this paper, we demonstrate that b-bit minwise hashing can be naturally integrated with linear learning algorithms such as linear SVM and logistic regression, to solve large-scale and high-dimensional statistical learning tasks, especially when the data do not fit in memory. We compare b-bit minwise hashing with the Count-Min (CM) and Vowpal Wabbit (VW) algorithms, which have essentially the same variances as random projections. Our theoretical and empirical comparisons illustrate that b-bit minwise hashing is significantly more accurate (at the same storage cost) than VW (and random projections) for binary data.


Numerous theatrical productions in 1950s Israel employed blackface to simulate negritude on the stage. Focusing on Habima's 1953 production of Lost in the Stars—the musical drama based on Alan Paton's best-selling novel Cry, the Beloved Country—and reading it in the context of Israel's involvement in postcolonial black Africa, this essay demonstrates how, by reflecting the slippery nature of Jewish whiteness, blackface performances on the Hebrew stage captured the complex relationship between Zionism and apartheid.


Abstract The policies for better health, poverty reduction, and less inequality, throughout the world, require thorough understanding of both the processes and causal paths that underlie the intricate relationship between health and wealth (income). This is deemed difficult, contingent, and only partially understood. The adage 'health is wealth' is still, primarily, an intuitive proposition. A vast majority of researchers instead present theoretical and empirical arguments of the reverse proposition, i.e. 'wealth is health'. A recent strand of the literature, however, reflects changes in the perceptions: improvements of health and longevity are no longer viewed as a mere end- or by-product of economic development; but argued as one of the key determinants of, and therefore means to achieve, economic development and poverty reduction. Hence, better health does not have to wait for an improved economy; rather, measures to reduce the burden of disease, to give children healthy childhoods, to increase life expectancy etc. will in themselves contribute to creating richer economies. Drawing on the traditional and emerging perspectives on the health-income relationship, this literature review presents a non-exhaustive survey of existing methodological approaches and their results that are applied to track and measure how health influences economic outcomes.


How will our increasingly digital civilization persist beyond our lifetimes? Audio and videotapes demagnetize; CDs delaminate; Internet art links to websites that no longer exist; Amiga software doesn't run on iMacs. In Re-collection, Richard Rinehart and Jon Ippolito argue that the vulnerability of new media art illustrates a larger crisis for social memory. They describe a variable media approach to rescuing new media, distributed across producers and consumers who can choose appropriate strategies for each endangered work. New media art poses novel preservation and conservation dilemmas. Given the ephemerality of their mediums, software art, installation art, and interactive games may be heading to obsolescence and oblivion. Rinehart and Ippolito, both museum professionals, examine the preservation of new media art from both practical and theoretical perspectives, offering concrete examples that range from Nam June Paik to Danger Mouse. They investigate three threats to twenty-first-century creativity: technology, because much new media art depends on rapidly changing software or hardware; institutions, which may rely on preservation methods developed for older mediums; and law, which complicates access with intellectual property constraints such as copyright and licensing. Technology, institutions, and law, however, can be enlisted as allies rather than enemies of ephemeral artifacts and their preservation. The variable media approach that Rinehart and Ippolito propose asks to what extent works to be preserved might be medium-independent, translatable into new mediums when their original formats are obsolete.


Abstract. Cloud-aerosol interaction is a key issue in the climate system, affecting the water cycle, the weather, and the total energy balance including the spatial and temporal distribution of latent heat release. Information on the vertical distribution of cloud droplet microphysics and thermodynamic phase as a function of temperature or height, can be correlated with details of the aerosol field to provide insight on how these particles are affecting cloud properties and their consequences to cloud lifetime, precipitation, water cycle, and general energy balance. Unfortunately, today's experimental methods still lack the observational tools that can characterize the true evolution of the cloud microphysical, spatial and temporal structure in the cloud droplet scale, and then link these characteristics to environmental factors and properties of the cloud condensation nuclei. Here we propose and demonstrate a new experimental approach (the cloud scanner instrument) that provides the microphysical information missed in current experiments and remote sensing options. Cloud scanner measurements can be performed from aircraft, ground, or satellite by scanning the side of the clouds from the base to the top, providing us with the unique opportunity of obtaining snapshots of the cloud droplet microphysical and thermodynamic states as a function of height and brightness temperature in clouds at several development stages. The brightness temperature profile of the cloud side can be directly associated with the thermodynamic phase of the droplets to provide information on the glaciation temperature as a function of different ambient conditions, aerosol concentration, and type. An aircraft prototype of the cloud scanner was built and flew in a field campaign in Brazil. The CLAIM-3D (3-Dimensional Cloud Aerosol Interaction Mission) satellite concept proposed here combines several techniques to simultaneously measure the vertical profile of cloud microphysics, thermodynamic phase, brightness temperature, and aerosol amount and type in the neighborhood of the clouds. The wide wavelength range, and the use of multi-angle polarization measurements proposed for this mission allow us to estimate the availability and characteristics of aerosol particles acting as cloud condensation nuclei, and their effects on the cloud microphysical structure. These results can provide unprecedented details on the response of cloud droplet microphysics to natural and anthropogenic aerosols in the size scale where the interaction really happens.


New prognostic AI innovations are being developed, optimized, and productized for enhancing the reliability, availability, and serviceability of enterprise servers and data centers, known as Electronic Prognostics (EP). EP prognostic innovations are now being spun off for prognostic cyber-security applications, and for Internet-of-Things (IoT) prognostic applications in the industrial sectors of manufacturing, transportation, and utilities. For these applications, the function of prognostic anomaly detection is achieved by predicting what each monitored signal "should be" via highly accurate empirical nonlinear nonparametric (NLNP) regression algorithms, and then differencing the optimal signal estimates from the real measured signals to produce "residuals". The residuals are then monitored with a Sequential Probability Ratio Test (SPRT). The advantage of the SPRT, when tuned properly, is that it provides the earliest mathematically possible annunciation of anomalies growing into time series signals for a wide range of complex engineering applications. SimSPRT-II is a comprehensive parametric monte-carlo simulation framework for tuning, optimization, and performance evaluation of SPRT algorithms for any types of digitized time-series signals. SimSPRT-II enables users to systematically optimize SPRT performance as a multivariate function of Type-I and Type-II errors, Variance, Sampling Density, and System Disturbance Magnitude, and then quickly evaluate what we believe to be the most important overall prognostic performance metrics for real-time applications: Empirical False and Missed-alarm Probabilities (FAPs and MAPs), SPRT Tripping Frequency as a function of anomaly severity, and Overhead Compute Cost as a function of sampling density. SimSPRT-II has become a vital tool for tuning, optimization, and formal validation of SPRT based AI algorithms for applications in a broad range of engineering and security prognostic applications.


Time analysis and frequency analysis are both well-established ways in engineering to gain more knowledge about a physical phenomena. Time and frequncy analysis can be combinen in a joint time and frequency distribution. A simple method to gain a joint distribution is to window segments of the data at different time locations and calculate its Fourier transform. By doing this a set of 'local' spectra are gained and joined to present a time-frequency distribution. This method is well known as the Short-Time Fourier Transform. The Short-Time Fourier Transform has the disatvantage that i does not localize time and frequency phenomena very well. Instead the time-frequency information is scattered which depends on the length of the window. This can be attended to by altering the length of the window bu a certain balance between good time and good frequency localization is unavoidable. To cope with this disadvantage, the Wavelet Transform uses dilated and translated functions, which are local in time, and frequency, which results in good frequency resolutin for low-frequency phenomena and good time resolution for high-frequency phenomena. The advantage of the Wavelet Transform is its efficient fast transform in discrete time. But still, there is no complete solution to the localization problem. Adaptive Time-Frequency Analysis can be advantageous for solving the localization problem. The functionality of methods is hereby adapted to the time-frequency content of the signa. The Adaptive Wavelet Packets Transform is based upon the Wavelet Transform but is a more general way to gain a time-frequency distribution. It is even possible to gain a time-frequency distribution similar to the Short-Time Fourier Transform. The energy levels in the frequency bands determine the frequency resolution. Much energy located in a small frequency band will result in good frequency resolution for the specific band. Other frequency areas will be analyzed with as good time resolution as possible. Sine wave with constant frequency precedes time phenomena. The method is implemented using a fast Quadrature Mirror Filter bank tree which form determines resolution of the analysis. In the Adaptive Window Short-Time Fourier Transform, the time phenomena precede sine waves in the analysis. Good time resolution is gained where the time-frequency concentration is highest for short windows. Other time intervals will be analyzed with a longer window, to gain better frequency resolution. The method is implemented using a set of Fast Fourier Transform calculations.


Empirical evidence suggests that movements in international relative prices (such as the real exchange rate) are large and persistent. Nontraded goods, both in the form of final consumption goods and as an input into the production of final tradable goods, are an important aspect behind international relative price movements. In this paper we show that nontraded goods have important implications for exchange rate behavior, even though fluctuations in the relative price of nontraded goods account for a relatively small fraction of real exchange rate movements. In our quantitative study nontraded goods magnify the volatility of exchange rates when compared to the model without nontraded goods. Cross-country correlations and the correlation of exchange rates with other macro variables are closer in line with the data. In addition, contrary to a large literature,standard alternative assumptions about the currency in which firms price their goods are virtually inconsequential for the properties of aggregate variables in our model, other than the terms of trade.


The previous report of the presence of lovebirds (Agapornis) at the Plio-Pleistocene Kromdraai B fossil locality is confirmed by the identification of a humerus from Member 3. That fossil specimen differs from extant lovebird species in morphology, and its slightly smaller size indicates that it likely represents an extinct taxon. This lovebird specimen is likely from the early Pleistocene (younger than 1.95 Myr) and appears to have been deposited around the same time as the fossil hominid specimens that have been uncovered at the site. The modern preference of lovebirds for a wide variety of wooded and forested habitats adds support to the mammalian-based idea that the palaeohabitat around Kromdraai B where Australopithecus robustus lived in the early Pleistocene was a mosaic that included wooded or forested habitats.


The aim of this dissertation is to devise a meshless model describing the thermomechanical phenomena, which occur during DC casting of aluminium alloys under the influence of electromagnetic stirring. The thermoemchanical phenomena are important, because they can cause several type of defects, which can significantly deteriorate the quality of the resulting billet. The two most important of them are the hot tearing, which causes cracks to appear in the mushy zone, and the porosity, which demonstrates itself as micrometer sized voids in the microstructure of the billet.

To calculate the stresses and strains, a computational model of the stationary state of the process, stated in axial symmetry, is formulated. It uses Eulerian formulation by fixing the computational domain to the mold of the casting device allowing the material to move through the computational domain. The stresses are calculated from the stress equilibrium equations. The small strain approximation is used to consider the three contributions to strain. The strain consists of the thermal strain, which is caused by the inhomogeneous thermal profile in the billet, the viscoplastic strain, which is caused by the irreversible deformation because of the large stresses occurring in the billet, and the elastic strain.

The spatial discretization of the governing equations is performed by local radial basis function collocation method (LRBFCM) and the temporal discretization is achieved by the method of lines with implicit Euler formula. The method used for spatial discretization uses radial basis functions augmented by monomials to approximate the solution values on localized stencils. This approximation is used to construct the discretization coefficients of the differential operators present in the model. A flexible framework for formulation of multiphysics problems is developed to use the obtained discretization coefficients to construct the temporal discretization of the governing equations. The node arrangement, on which the spatial discretization is performed, was generated by a point-repel algorithm.

The performance of the method is tested on several benchmark test cases. The accuracy of the discretization is estimated by comparing the analytic and the numerical solution to several stationary problems in thermomechancis. Of special interest is the performance of the method with respect to the choice of the shape parameter, which determines the spatial scale of the radial basis functions. Besides this, the dependence of the condition number of the interpolation matrix on the shape parameter is studied. The condition number is found fit to replace the condition number as the shape-determining free parameter of the method.

The implementation of the solver of time dependent problems is tested on problem of thermoelasticity, which couples the thermal transport with the elastic waves. The results of the problem are compared with the finite element method, showing good agreement of the two methods. The results are also compared with the results obtained by meshless local Petrov-Galerkin method and the proposed local collocation method demonstrated significantly better solution quality in the studied case.

The performance of the solver used to solve the system of nonlinear equations given by the viscoplastic constitutive equations is estimated on a quasi zero-dimensional problem. The results are found to match perfectly. Solution of a more complicated problem is obtained with the proposed method and the finite-element method, both methods giving practically the same solution, although some serious limitations of the chosen finite element solver are exposed during the selection of the problem parameters.

Finally, the devised method is applied to the problem of DC casting of aluminium alloys. The thermomechanical model relies on a model of heat and mass transfer to obtain the input fields needed in the solver. The required fields are: temperature, pressure, liquid


In robotics, the sensory inputs are high dimensional, however, only a small subspace is important to guide the actions of a robot. Previous work by Jonschkowski and Brock in 2015 presented an unsupervised learning method extracting a low dimensional representation using robotic priors. These robotic priors encode knowledge about the physical world in a loss function. However, their and that of other methods to learn such a representation rely on an Markovian observation space. We extend the idea of robotic priors to work on non Markovian observation spaces. For this, we train a recurrent neural network on trajectories, such that the network learns to encode past information in its hidden state. With this we are able to learn a Markovian state space. To train this network, we combine and modify existing robotic priors to work in non Markovian environments. We test our method in a 3D maze environment. To evaluate the quality of the learned state representation, we introduce a validation network that maps from the learned states to the ground truth. Using the new validation network, we show that the learned state space contains both positional and structural information of the environment. Furthermore, we use reinforcement learning and show that the learned state space is sufficient to solve a maze navigation task.


The practice of email forwarding deprives email senders of privacy. Expression meant for only a specific recipient often finds its way into myriad inboxes or onto a public website, exposed for all to see. Simply by clicking the "forward" button, email recipients routinely strip email senders of expressive privacy. The common law condemns such conduct. Beginning over two-hundred-fifty years ago, courts recognized that authors of personal correspondence hold property rights in their expression. Under common-law copyright, authors held a right to control whether their correspondence was published to third parties. This common-law protection of private expression was nearly absolute, immune from any defense of "fair use." Accordingly, the routine practice of email forwarding would violate principles of common-law copyright. The issue of whether common-law copyright today protects email expression turns on whether the Federal Copyright Act preempts common-law copyright. The Copyright Act includes a fair-use defense to infringing uses of unpublished works, and that defense likely applies to email forwarding. A strong argument exists, however, that the Act does not preempt common-law rights of expression which protect privacy. Federal preemption extends only as far as the Constitution permits. According to the Copyright Clause in the Constitution, federal property rights in expression are limited to rights that forward a utilitarian end. Rights of privacy do not forward a utilitarian end. The Act should therefore be construed as not preempting common-law copyright's protection of privacy. Email forwarding must yield to privacy protection.


From contributions of astronomy data and DNA sequences to disease treatment research, scientific activity by non-scientists is a real and emergent phenomenon, and raising policy questions. This involvement in science can be understood as an issue of access to publications, code, and data that facilitates public engagement in the research process, thus appropriate policy to support the associated welfare enhancing benefits is essential. Current legal barriers to citizen participation can be alleviated by scientists' use of the "Reproducible Research Standard," thus making the literature, data, and code associated with scientific results accessible. The enterprise of science is undergoing deep and fundamental changes, particularly in how scientists obtain results and share their work: the promise of open research dissemination held by the Internet is gradually being fulfilled by scientists. Contributions to science from beyond the ivory tower are forcing a rethinking of traditional models of knowledge generation, evaluation, and communication. The notion of a scientific "peer" is blurred with the advent of lay contributions to science raising questions regarding the concepts of peer-review and recognition. New collaborative models are emerging around both open scientific software and the generation of scientific discoveries that bear a similarity to open innovation models in other settings. Public engagement in science can be understood as an issue of access to knowledge for public involvement in the research process, facilitated by appropriate policy to support the welfare enhancing benefits deriving from citizen-science.


Most intensive field studies investigating aerosols have been conducted in summer, and thus, wintertime aerosol sources and chemistry are comparatively poorly understood. An aerosol mass spectrometer was flown on the National Science Foundation/National Center for Atmospheric Research C‐130 during the Wintertime INvestigation of Transport, Emissions, and Reactivity (WINTER) 2015 campaign in the northeast United States. The fraction of boundary layer submicron aerosol that was organic aerosol (OA) was about a factor of 2 smaller than during a 2011 summertime study in a similar region. However, the OA measured in WINTER was almost as oxidized as OA measured in several other studies in warmer months of the year. Fifty‐eight percent of the OA was oxygenated (secondary), and 42% was primary (POA). Biomass burning OA (likely from residential heating) was ubiquitous and accounted for 33% of the OA mass. Using nonvolatile POA, one of two default secondary OA (SOA) formulations in GEOS‐Chem (v10‐01) shows very large underpredictions of SOA and O/C (5×) and overprediction of POA (2×). We strongly recommend against using that formulation in future studies. Semivolatile POA, an alternative default in GEOS‐Chem, or a simplified parameterization (SIMPLE) were closer to the observations, although still with substantial differences. A case study of urban outflow from metropolitan New York City showed a consistent amount and normalized rate of added OA mass (due to SOA formation) compared to summer studies, although proceeding more slowly due to lower OH concentrations. A box model and SIMPLE perform similarly for WINTER as for Los Angeles, with an underprediction at ages <6 hr, suggesting that fast chemistry might be missing from the models.


This document contains my master thesis report, including problem definition, requirements, problem analysis, review of current state of the art, proposed solution,
designed prototype, discussions and conclusion.
During this work we propose a collaborative solution to run different types of operations in a broker-less network without relying on a central orchestrator.
Based on our requirements, we define and analyze a number of scenarios. Then we design a solution to address those scenarios using a distributed workflow management approach. We explain how we break a complicated operation into simpler parts and how we manage it in a non-blocking and distributed way. Then we show how we asynchronously launch them on the network and how we collect and aggregate results. Later on we introduce our prototype which demonstrates the proposed design.


If you're new to C#, this popular book is the ideal way to get started. Completely revised for the latest version of the language, Learning C# 3.0 starts with the fundamentals and takes you through intermediate and advanced C# features -- including generics, interfaces, delegates, lambda expressions, and LINQ. You'll also learn how to build Windows applications and handle data with C#. No previous programming experience is required -- in fact, if you've never written a line of code in your life, bestselling authors Jesse Liberty and Brian MacDonald will show you how it's done. Each chapter offers a self-contained lesson to help you master key concepts, with plenty of annotated examples, illustrations, and a concise summary. With this book, you will: Learn how to program as you learn C# Grasp the principles of object-oriented programming through C# Discover how to use the latest features in C# 3.0 and the .NET 3.5 Framework--including LINQ and the Windows Presentation Foundation (WPF) Create Windows applications and data-driven applications You'll also find a unique Test Your Knowledge section in each chapter, with practical exercises and review quizzes, so you can practice new skills and test your understanding. If you're ready to dive into C# and .NET programming, this book is a great way to quickly get up to speed.


We defend contract law's preference to protect the expectation with a liability rule against prominent doctrinal and moral critics who argue that a promisee should have a right to specific performance or to a restitutionary remedy. These critics argue that liability rule protection limited to contractual expectations unjustifiably favors promisors, by allowing a promisor to capture the entire gain from unilaterally exiting a contract as long as she compensates her promisee for the profit he would have realized had he received the goods or services the contract described. The critics prefer to vindicate contractual expectations with a property rule or restitution. We show that a promisee's gross payoff under the typical contract is invariant to the remedy the law accords him. Current defenders and critics focus on gross payoffs. In this analytic universe, no remedy can be shown to be superior to any other remedy. We argue below that the promisee's net payoff, for transaction cost reasons, is higher under a contract that protects his expectation with a liability rule. This claim supports the dual performance hypothesis, which holds that promisees typically give their promisors discretion either to trade the goods or services at issue or to make a transfer to the promisee in lieu of trade. A promisor who transfers rather than trades therefore does not breach; rather, she breaches only when she rejects both trade and transfer. On this view of the law, a promisee's suit to recover his expectation is a specific performance action to enforce the contract's transfer term. We further explain that this approach renders contract law coherent; it is consistent with the law's immanent normativity; and it is consistent also with the morality of promising.


The present thesis investigates attitudes and prosocial behavior between workgroups from a social identity and intergroup contact perspective. Based on the Common In-group Identity Model (CIIM; Gaertner & Dvoidio, 2000), it is hypothesized that "optimal" conditions for contact (Allport, 1954) create a common identity at the organizational level which motivates workgroups to cooperate and show organizational citizenship behavior (OCB) rather than intergroup bias. Predictions based on the CIIM are extended with hypotheses derived from the In-group Projection Model (IPM; Mummendey & Wenzel, 1999) and the Self-Categorization Model of Group Norms (Terry & Hogg, 1996). Hypotheses are tested with data from N1 = 281 employees of N2 = 49 different workgroups and their workgroup managers of a German mail-order company (Study 1). Results indicate that group- and individual-level contact conditions are predictive of lower levels of intergroup bias and higher levels of cooperation and helping behavior. A common in-group representation mediates the effect on out-group attitudes and intergroup cooperation. In addition, the effect of a common in-group representation on intergroup bias is moderated by relative prototypicality, as predicted by the IPM, and the effect of prosocial group norms on helping behavior is moderated by workgroup identification, as predicted by the Self-Categorization Model of Group Norms. A longitudinal study with Ntotal = 57 members of different student project groups replicates the finding that contact under "optimal" conditions reduces intergroup bias and increases prosocial behavior between organizational groups. However, a common in-group representation is not found to mediate this effect in Study 2. Initial findings also indicate that individual-level variables, such as helping behavior toward members of another workgroup, may be better accounted for by variables at the same level of categorization (cf. Haslam, 2004). Thus, contact in a context that makes personal identities of workgroup members salient (i.e., decategorization) may be more predictive of interpersonal prosocial behavior, while contact in a context that makes workgroup identities salient (i.e., categorization) may be more predictive of intergroup prosocial behavior (cf. Tajfel, 1978). Further data from Study 1 support such a context-specific effect of contact between workgroups on interpersonal and intergroup prosocial behavior, respectively. In the last step, a temporal integration of the contact contexts that either lead to decategorization, categorization, or recategorization are examined based on the Longitudinal Contact Model (Pettigrew, 1998). A first indication that a temporal sequence from decategorization via categorization to recategorization may be particularly effective in fostering intergroup cooperation is obtained with data from Study 2. In order to provide a heuristic model for research on prosocial behavior between workgroups, findings are integrated into a Context-Specific Contact Model. The model proposes specific effects of contact in different contexts on prosocial behavior at different levels of categorization. Possible mediator and moderator processes are suggested. A number of implications for theory, future research and the management of relations between workgroups are discussed.


This paper is concerned with the development of a self-adaptive spatial descretization for PDEs using a wavelet basis. A Petrov-Galerkin method [LPT91] is used to reduce the determination of the unknown at the new time step to the computation of scalar products. These have to be discretized in an appropriate way. We investigate this point in detail and devise an algorithm that has linear operation count with respect to the number of unknowns. It is tested with spline wavelets and Meyer wavelets retaining the latter for their better localisation at finite precision. The algorithm is then applied to the one dimensional thermodiffusive equations. We show that the adaption strategy merits to be modified in order to take into account the particular and very strong nonlinearity of this problem. Finally, a supplementary Fourier discretization permits the computation of two dimensional flame fronts.


Integration of multiple languages into each other and into an existing development environment is a difficult task. As a consequence, developers often end up using only internal DSLs that strictly rely on the constraints imposed by the host language. Infrastructures do exist to mix languages, but they often do it at the price of losing the development tools of the host language. Instead of inventing a completely new infrastructure, our solution is to integrate new languages deeply into the existing host environment and reuse the infrastructure offered by it. In this paper we show why Smalltalk is the best practical choice for such a host language.


The microbial oxidation of reduced inorganic sulfur compounds and elemental sulfur to sulfate is one of the major reactions in the global sulfur cycle. Despite its importance, only limited information is available about molecular details of the enzymes involved. The present work was aimed to contribute to the understanding of the underlying molecular mechanisms by investigating the function and structure of the sulfur oxygenase reductase (SOR) from the thermoacidophilic crenarchaeote Acidianus ambivalens. The expression of the sor gene in Escherichia coli resulted in active, soluble SOR and in inclusion bodies from which active SOR could be refolded as long as ferrous ions were present in the refolding solution. The wild type and recombinant SOR preparations possessed indistinguishable properties when analyzed for activity and by gel permeation chromatography, CD spectroscopy and electron microscopy. The analysis of the quaternary structure showed a multi-subunit shell-like assembly with a central hollow core. The subunits formed homodimers as the building blocks of the holoenzyme, as shown by denaturation experiments. Conformational stability studies showed that the apparent unfolding free energy in water was ~5 kcal mol-1, at pH 7. Iron was found in the wild type enzyme at a stoichiometry of one iron per subunit. EPR spectroscopy of the colorless SOR resulted in a single isotropic signal at g = 4.3 characteristic of high-spin ferric iron. The signal disappeared upon reduction with dithionite or incubation with sulfur at elevated temperature. The iron center had a reduction potential of E0´ = -268 mV at pH 6.5. Protein database inspection identified five SOR protein homologues which allowed the prediction of amino acids putatively involved in catalysis. The recombinant SOR was crystallized by the sitting drop vapor diffusion method. The crystal structure was determined at 1.7 A resolution. The homo-icosatetrameric holoenzyme was a highly symmetrical hollow protein particle with 432 point group symmetry and a molecular mass of 871 kDa. The subunits were αβ-proteins and comprised a central β-barrel surrounded by α-helices. Each monomer contained one mononuclear non-heme iron site with the ligands H85, H89, E113 and two water molecules in an octahedral arrangement. The protein ligands formed a 2-His-1-carboxylate facial triad for iron binding. The cysteines C30, C100 and C103 were in the vicinity of the iron site and located along the same cavity within the interior of the subunit, therefore defining the enzyme´s active site. C30 was persulfurated. The 24 active sites were spacially separated from each other, making an electronic interaction during catalysis unlikely. They were accessible solely via the inner compartment. Access of substrate to the inner compartment is most probably provided by six hydrophobic channels along the four-fold symmetry axes of the particle. Furthermore, the structure suggested that a linear polysufide species and not the cyclic α-S8 is the substrate of the SOR. Crystal structures of the SOR in complex with the inhibitors p-hydroxy-mercury-benzoic acid and iodoacetamide identified the cysteines as the inhibitor binding sites. The iron-binding residues H85, H89 and E113 and the three cysteines C30, C100 and C103 were altered by site-directed mutagenesis and the mutant proteins were analyzed for activity and iron content. Mutations of the iron ligands and C30 resulted in inactive enzyme, whereas mutations of C100 and C103 resulted in a reduced activity. All mutations affected the oxygenase and reductase partial reactions to a similar degree. These analyses allowed the first detailed insight into the mode of action of this self-compartmentalizing metalloenzyme. C30 is most probably the sulfur binding residue which aligns the substrate for the initial oxygenation catalyzed by the Fe site. The role of C100 and C103 is not clear, but they might act in the subsequent sulfur disproportionation reaction. The comparison of the SOR with SoxAX, the only other sulfur compound oxidizing enzyme from prokaryotes for which a high resolution structure is available, showed no structural similarity. SoxAX and other sulfur oxidizing enzymes contain different cofactors, demonstrating the diversity of mechanistic approaches utilized for sulfur compound oxidation. In contrast, a basic functional principle seems to be the central role of cysteine residues, acting as covalent binding sites for the substrate.


The problems with alcohol policy in the UK Summary Alcohol policy in Britain and many other countries aims to reduce per capita alcohol consumption in the belief that this will inevitably reduce heavy and harmful drinking. The cornerstone policies of this approach are advertising bans, licensing restrictions and higher taxes. Campaigners cite the 'Total Consumption Model' as justification for implementing policies that affect all drinkers, rather than just the heavy drinking minority. The theory was devised in the 1950s based on a statistical correlation between average alcohol consumption and rates of harmful drinking. As researchers have long recognised, this theory is deeply flawed and has little predictive power. Per capita alcohol consumption largely depends on the amount of heavy drinking in a population, not vice versa. The mathematical model is simply wrong. Numerous real world examples, including the UK in recent years, show that alcohol-related harm does not necessarily correlate with overall alcohol consumption. Empirical evidence supports neither the Total Consumption Model nor the policies upon which it is based. These policies bear costs on moderate drinkers while being largely ignored by at-risk drinkers. Alcohol policy would be more effective and equitable if it targeted excessive drinkers, alcoholics and those who require help, rather than the whole population.


The only work of its kind to survive from classical antiquity, the Library of Apollodorus is a unique guide to Greek mythology, from the origins of the universe to the Trojan War. Apollodorus' Library has been used as a source book by classicists from the time of its compilation in the 1st-2nd century BC to the present, influencing writers from antiquity to Robert Graves. It provides a complete history of Greek myth, telling the story of each of the great families of heroic mythology, and the various adventures associated with the main heroes and heroines, from Jason and Perseus to Heracles and Helen of Troy. As a primary source for Greek myth, as a reference work, and as an indication of how the Greeks themselves viewed their mythical traditions, the Library is indispensable to anyone who has an interest in classical mythology. Robin Hard's accessible and fluent translation is supplemented by comprehensive notes, a map and full genealogical tables. The introduction gives a detailed account of the Library's sources and situates it within the fascinating narrative traditions of Greek mythology. ABOUT THE SERIES: For over 100 years Oxford World's Classics has made available the widest range of literature from around the globe. Each affordable volume reflects Oxford's commitment to scholarship, providing the most accurate text plus a wealth of other valuable features, including expert introductions by leading authorities, helpful notes to clarify the text, up-to-date bibliographies for further study, and much more.


HIV-specific cytotoxic T lymphocytes (CTL) are important in controlling HIV replication, but the magnitude of the CTL response does not predict clinical outcome. In four donors with delayed disease progression we identified Vβ13.2 T cell receptors (TCRs) with very similar and unusually long β-chain complementarity determining region 3 (CDR3) regions in CTL specific for the immunodominant human histocompatibility leukocyte antigens (HLA)-B8–restricted human immunodeficiency virus-1 (HIV-1) nef epitope, FLKEKGGL (FL8). CTL expressing Vβ13.2 TCRs tolerate naturally arising viral variants in the FL8 epitope that escape recognition by other CTL. In addition, they expand efficiently in vitro and are resistant to apoptosis, in contrast to FL8–specific CTL using other TCRs. Selection of Vβ13.2 TCRs by some patients early in the FL8-specific CTL response may be linked with better clinical outcome.


Why is there no Milton Friedman today? For two reasons. The young Milton Friedman emerged from a cloistered hold-out against the Age of Keynes; as such he was a battle-tested master of ingenuity and subterfuge. The accomplishments of those years cannot be replicated by the dominant and dogmatic orthodoxy that Chicago-style economics has become. On the other hand, as a celebrity and TV personality, the older Milton Friedman has many imitators. It's a well-paid niche, and as such the caliber of people drawn to it is not very high.


The rise of the catch and glee in Georgian England represents a rare example of indigenous forms establishing themselves within a wide musical and social context. This study examines a phenomenon that has to date been largely overlooked by historians. Taking the 17th-century background as a starting point, it moves on to a detailed account of the clubs formed to propagate the two genres, placing them within the ambiance of the thriving club life of London and the provinces. The success of the London Catch Club and its emulators in encouraging the creation of a large and popular repertoire that would come to assume nationalistic significance is reflected by the incursion of the catch and glee into mainstream concert life and the theatre. The volume concludes with a discussion of the glee in relation to the aesthetics of the period and a brief survey of its subsequent reputation among musicians and historians.


We explored the neuropsychological and neuromorphometrical differences between probable Alzheimer's disease patients showing a good or a bad response to nine months treatment with donepezil. Before treatment, the neuropsychological profile of the two patient groups was perfectly matched. By the ninth month after treatment, the BAD-responders showed a decline of the MMSE score together with a progressive impairment of executive functions. A voxel-based morphometry investigation (VBM), at the time of the second neuropsychological assessment, showed that the BAD-responders had larger grey and white matter atrophies involving the substantia innominata of Meynert bilaterally, the ventral part of caudate nuclei and the left uncinate fasciculus, brain areas belonging to the cholinergic pathways. A more widespread degeneration of the central cholinergic pathways may explain the lack of donepezil efficacy in those patients not responding to a treatment that operates on the grounds that some degree of endogeneous release of acetylcholine is still available.


Rule 13 of the Collision Regulations reads as follows: Overtaking: (a) Notwithstanding anything contained in the Rules of this Section any vessel overtaking any other shall keep out of the way of the vessel being overtaken. (b) A vessel shall be deemed to be overtaking when coming up with another vessel from a direction more than 22·5 degrees abaft her beam, that is, in such a position with reference to the vessel she is overtaking, that at night she would be able to see only the sternlight of that vessel but neither of her sidelights. (c) When a vessel is in any doubt as to whether she is overtaking another, she shall assume that this is the case and act accordingly. (d) Any subsequent alteration of the bearing between the two vessels shall not make the overtaking vessel a crossing vessel within the meaning of these Rules or relieve her of the duty of keeping clear of the overtaken vessel until she is finally past and clear.