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Publications in 2016

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Evidence on the Incremental Information Content of Additional Firm Disclosures Made Concurrently with Earnings

The purpose of this study is to assess the incremental information content of additional firm disclosures released concurrently with the announcement of annual earnings. More specifically, we examine the Dow Jones News Retrieval Service for all disclosures...

Optimal Replacement In The Proportional Hazards Model

In this paper, we examine a replacement problem for a system subject to stochastic deterioration. Upon failure the system must be replaced by a new one and a failure cost is incurred. If the systemis replaced before failure a smaller cost is incurred....

Portfolio Choice in Retirement: Health Risk and the Demand for Annuities, Housing, and Risky Assets

This paper develops a consumption and portfolio-choice model of a retiree who allocates wealth among four assets: a riskless bond, a risky asset, a real annuity, and housing. Unlike previous studies that treat health expenditures as exogenous negative...

A Primer on Aspects of Cognition for Medical Informatics

As a multidisciplinary field, medical informatics draws on a range of disciplines, such as computer science, information science, and the social and cognitive sciences. The cognitive sciences can provide important insights into the nature of the processes...

Unconventional monetary policies: a re-appraisal

We explore the effectiveness and balance of benefits and costs of so-called "unconventional" monetary policy measures extensively implemented in the wake of the financial crisis: balance sheet policies (commonly termed "quantitative easing"), forward...

Self-dual instantons and holomorphic curves

Stamatis Dostoglou, Dietmar Salamon

Stochastic Equations for Diffusion Processes in a Bounded Region

In this paper an equation is derived for diffusion processes with a reflecting boundary; it is proved that the solution to this equation exists and is unique.

Informational economies of scale

The theory of the firm under uncertainty is examined in the context of several examples which illustrate that opportunities to purchase technological information at some cost in resources may induce economies of scale even though the technology of physical...

Structural and Social Psychological Factors in the Decision to Seek Medical Care for Symptoms

Panel data are presented from the Los Angeles Health Survey, in which 1 year of symptom experience is analyzed. Of the 1,210 individuals originally in the panel, 769 reported at least one symptom in reinterviews conducted every 6 weeks during the study...

THE STABILITY OF A COMPETITIVE ECONOMY: A SURVEY ARTICLE

THE THEORY of the general competitive equilibrium, as developed by Leon Walras [64], has recently been reformulated in terms of fairly advanced mathematical methods. The first problem studied extensively was concerned with the conditions under which a...

Rare Disasters and Exchange Rates

We propose a new model of exchange rates, which yields a theory of the forward premium puzzle. Our explanation combines two ingredients: the possibility of rare economic disasters, and an asset view of the exchange rate. Our model is frictionless, has...

Induction and structure theorems for orthogonal representations of finite groups

The equivariant Witt ring GW(, R) of a finite group w over a Dedekind domain R is studied. It is shown that-modulo the prime 2-GW(r, Z) equals the character ring of real representations of w and GW(w, R) equals GW(w, Z) ( W(R). From this, induction theorems...

Demographic Determinants of Household Energy Use in the United States

Projections of energy demand over the coming decades are critically important to understanding and anticipating future resource requirements and environmental impacts such as acid rain, local air pollution, and climate change (e.g., Nakicenovic et al....

F-RATIONAL RINGS HAVE RATIONAL SINGULARITIES

It is proved that an excellent local ring of prime characteristic in which a single ideal generated by any system of parameters is tightly closed must be pseudorational. A key point in the proof is a characterization of F-rational local rings as those...

STATISTICAL METHODS FOR THE MOVER-STAYER MODEL*

The mover-stayer model, a generalization of the Markov chain model, assumes that there are two types of individuals in the population under consideration: (a) the "stayer," who with probability one remains in the same category during the entire period...

Endemism in rock outcrop plant communities of unglaciated eastern United States: an evaluation of the roles of the edaphic, genetic and light factors

Within the unglaciated eastern United States, where the natural vegetation is mostly deciduous forest, edaphically-controlled herbaceous plant communities occur on unshaded rock outcrops in shallow soil developed from serpentine, shale, granite, limestone,...

The Rules of the Game: International Money in Historical Perspective

Ronald I. McKinnon, Randall Henning, John Hussman, Bernard Herz, David Robinson, Jiirgen Schroder, John Williamson

A Multiple-Comparisons Method Based on the Distribution of the Root Node Distance of a Binary Tree

This article proposes an easy to implement cluster-based method for identifying groups of nonhomogeneous means. The method overcomes the common problem of the classical multiple-comparison methods that lead to the construction of groups that often have...

SURVEY PRETESTING: DO DIFFERENT METHODS PRODUCE DIFFERENT RESULTS?

Pretesting is generally agreed to be an indispensable stage in survey questionnaire development, yet we know little about how well different pretesting methods identify particular types of problems. This study compared four pretesting methods using a...

Graph- Theoretical Approaches to the Theory of Voting*

In this article, language, concepts, and theorems from the theory of directed graphs are used to characterize and analyze the structure of majority preference. A number of results are then derived concerning "sincere," "sophisticated," and "cooperative"...

"YOU COULD BE THE HUNDREDTH MONKEY": Collective Action Frames and Vocabularies of Motive Within the Nuclear Disarmament Movement

Building on recent developments by social constructionists, this paper seeks to advance theoretical and empirical understanding of micromobilization processes associated with social movement recruitment and participation. Data derived from a fouryear...

ON A FOURIER METHOD FOR THE INTEGRATION OF HYPERBOLIC EQUATIONS

In this paper we consider high order difference approximations of /d/x and especially one method based on the fast Fourier transform. It is used to approximate space derivatives for hyper- bolic partial differential equations, and its accuracy, stability...

Paradigm Shifts and Policy Networks: Cumulative Change in Agriculture*

This article presents an alternative trajectory to policy paradigm change to that outlined by Peter A. Hall's social learning model, in which unsuccessful efforts by state officials to respond to policy failures and anomalies in the existing paradigm...

Phospholipase A2 Levels in Acute Chest Syndrome of Sickle Cell Disease

Acute chest syndrome (ACS) is associated with significant morbidity and is the leading cause of death in patients with sickle cell disease (SCD). Recent reports suggest that bone marrow fat embolism can be detected in many cases of severe ACS. Secretory...

Fundamentals of biochemistry : life at the molecular level

Donald Voet, Judith G. Voet, Charlotte W. Pratt

The pinwheel tilings of the plane

"prototiles") in Euclidean n-space, En, for n > 2. The prototiles are usually required to be rather nice topologically, at least homeomorphs of the closed unit ball. One then makes arbitrarily many congruent copies, called "tiles," of these prototiles,...

COMPUTATIONAL SOLUTION OF LINEAR TWO-POINT BOUNDARY VALUE PROBLEMS VIA ORTHONORMALIZATION*

We discuss algorithmic matters of a computer code for solving linear two-point boundary-value problems. The method of solution uses superposition coupled with an orthonormalization procedure and a variable-step Runge–Kutta–Fehlberg integration scheme....

The reactive element effect in commercial ODS FeCrAI alloys

Two commercial oxide dispersion strengthened alumina-forming FeCrAl alloys, Inco alloy MA956 and Kanthal alloy APM, were studied in order to look at the effect of reactive elements on their oxidation behaviour. MA956 has a distribution of Y2O3−Al2O3...

2015 ESC Guidelines for the management of acute coronary syndromes in patients presenting without persistent ST-segment elevation

ACC: American College of CardiologyACCOAST: Comparison of Prasugrel at the Time of Percutaneous Coronary Intervention or as Pretreatment at the Time of Diagnosis in Patients with Non-ST Elevation Myocardial InfarctionACE: angiotensin-converting...

SOME QUEUING PROBLEMS WITH THE SERVICE STATION SUBJECT TO BREAKDOWN

A number of situations is considered where the single service station is incapacitated from time to time to render service to the incoming (stationary) Poisson stream of customers. Five models are presented: Model A deals with the situation in which the...

The Firm or the Region: What Determines the Innovation Behavior of European Firms?

This paper examines the determinants of innovation behavior in European firms that are predominantly small and medium in size. The aim is to assess the absolute as well as the relative impact on innovation behavior of firm- specific (i.e., internal) factors...

Preventing Pregnancy and Improving Health Care Access Among Teenagers: An Evaluation Of the Children's Aid Society-Carrera Program

Context: Despite the recent declines in rates of teenage pregnancy relatively little is known about the few programs that have been successful in reducing adolescent pregnancy. Methods: Six agencies in New York City each randomly assigned 100 disadvantaged...

Dynamic Dependencies: A Geographic Investigation of Local Labor Markets*

Knowledge is grounded in experience, which in large part is rooted in the place-bound interactions of everyday life. We view labor market processes in the context of such interactions and explore the ways in which the experience-based knowledges of employers...

Elections and the Fed: Is There a Political Monetary Cycle?*

To understand the political causes of macroeconomic policy, it is necessary to examine the institutions that actually make such policy and the incentives those institutions face. An explanation of the political causes of United States monetary policy...

Exact t and F Tests for Analyzing Studies with Multiple Endpoints

SUMMARY The paper describes some methods of forming sum aggregates in multivariate analysis. These methods are useful for the statistical analysis of investigations with multiple endpoints. In particular, the sum statistics can be applied if differences...

Quasi-periodic solutions of Hamiltonian perturbations of 2D linear Schrodinger equations

The general problem discussed here is the persistency of quasi-periodic solutions of linear or integrable equations after Hamiltonian perturbation. This subject is closely related to the well-known "KAM-theory" of invariant tori in smooth dynamical systems....

Accessing Assets: Immigrant Youth's Work as Family Translators or "Para-Phrasers"

Drawing on a mixed-method program of research including the survey responses of 236 Spanish-speaking children, as well as extensive interviews, participant observation, and audiotaped data gathered in four different communities, we unpack the ways in...

Sexual Behavior, Contacepfive Practice, and Reproductive Health Among Nigerian Adolescents

This paper reports on a survey that was aimed at obtaining information for use in designing programs to reduce the incidence of adolescent pregnancy in Liberia. The sample of 1488 never-married adolescents aged 14-21 was divided into subgroups based...

Writing in Academic Settings: A Study of the Contexts for Writing in Two College Chemical Engineering Courses

This study investigated the context for writing in two college chemical engineering classes, viewing each as a disciplinary community. The study used a combination of quantitative and qualitative methods: a survey of all students and professors participating...

MANAGING BLAME: AN EXPERIMENTAL TEST OF THE EFFECTS OF POLITICAL ACCOUNTS

Public officials are not passive bystanders in the electoral process. Rather, they actively try to shape or manage citizens' perceptions of events (particularly those involving negative outcomes) through explanations or accounts. I argue that consideration...

Changes in Black Family Structure: The Conflict Between Family Ideology and Structural Conditions

The family ideology of black Americans is compared with actualfamily arrangements and lifestyles. Dissonance between the two is explained by the intervention of structural conditions that prevent the fulfillment of normative familial roles by black males....

A Conceptualization of Threat Communications and Protective Health Behavior

The effects of health threat communications have generated considerable empirical and theoretical attention. Inconsistent findings in the "fear appeat' literature suggest that the effects of these types of messages are not completely understood. Previous...

A Stranger in Strange Lands: A College Student Writing Across the Curriculum

This study asks questions about the nature of writing processes in classrooms. As students go from one classroom to another, they are presented with new speech situations, and they must determine what constitutes appropriate ways of speaking and writing...

INDUSTRIALISATION, CATCHING UP AND ECONOMIC GROWTH: A COMPARATIVE STUDY ACROSS THE WORLD'S CAPITALIST ECONOMIES*

Various hypotheses are examined seeking to explain inter-country convergence at the upper end, but divergence at the lower end, of the world income rankings. A model of disequilibrium growth with sector-specific technological progress and spillover is...

THE CONSTANT ELASTICITY OF TRANSFORMATION PRODUCTION FRONTIER AND LINEAR SUPPLY SYSTEM

IN THIS PAPER we define the elasticity of transformation analogously with the elasticity of substitution. We derive the family of CET (constant elasticity of transformation) production possibility schedules which (not surprisingly) turn out to be algebraically...

The endogenous money stock

The banking system has no direct control over the prices of individual commodities or over the rates of money earnings of the factors of production. Nor has it, in reality, any direct control over the quantity of money; for it is a characteristic of modern...

On the Frequency, Quality, and Informational Role of Mandatory Financial Reports

In this paper we study the relation between the frequency of mandatory financial disclosures, the amount of information voluntarily disclosed by privately informed managers, and the resulting informational efficiency of stock prices. Our analysis emphasizes...

Area-cladograms of Circum-Mediterranean taxa in relation to Mediterranean palaeogeography

Biogeographic characteristics of nine taxon- area-cladograms of various Circum-Mediterranean terres- trial animal groups are compared. Correlation with palaeo- geographic reconstructions suggests Oligocene and especially Miocene diversification within...

Cross-Validation in Principal Component Analysis

SUMMARY This paper describes a form of cross-validation, in the context of principal component analysis, which has a number of useful aspects as regards multivariate data inspection and description. Topics covered include choice of dimensionality, identification...

Marginalized Multilevel Models and Likelihood Inference

Hierarchical or "multilevel" regression models typically pa- rameterize the mean response conditional on unobserved latent vari- ables or "random" effects and then make simple assumptions regarding their distribution. The interpretation of a regression...

Effects on poor readers' comprehension of training in rapid decoding

Lisa S. Fleisher, Joseph R. Jenkins, Darlene Pany

Mannheim's sociology of generations: an undervalued legacy

ABS'I'RAC'I' Mannheim's 1923 essay 'The Problem of Generations' has often been described as the seminal theoretical treatment of generations as a sociological phenomenon. Yet in practice scant attention has been paid to the sociology of generations by...

Scattering asymptotics for Riemann surfaces

In this article we prove the optimal polynomial lower bound for the number of resonances of a surface with hyperbolic ends. We also give Weyl asymptotics for the relative scattering phase of such a surface. The proofs are based on trace formulae analogous...

Embedding problems over large fields

In this paper we study Galois theoretic properties of a large class of fields, a class which includes all fields satisfying a universal local-global principle for the existence of rational points on varieties. As applications, we give a positive answer...

Mirror-Image Twins: The Communities of Science and Technology in 19th-Century America

American technology went through a scientific revolution in the 19th century. Technological knowledge was uprooted from its ma- trix in centuries-old craft traditions and grafted onto science. The technological community, which in 1800 had been a craft...

Instabilities of Regression Estimates Relating Air Pollution to Mortality

The instability of ordinary least squares estimates of linear regression coefficients is demonstrated for mortality rates regressed around various socioeconomic, weather and pollution variables. A ridge regression technique presented by Hoer1 and Kennard...

A shortened activated partial thromboplastin time is associated with the risk of venous thromboembolism.

Hypercoagulability due to high coagulation factors XI, VIII, IX, II, and fibrinogen is recognized as a risk factor of venous thromboembolism (VTE). These factors are cumulatively explored by the activated partial thromboplastin time (APTT). To test the...

The Effects of Word Processing on the Revision Strategies of College Freshmen

This experimental study explores the effects of word processing on the revision strategies of 20 advanced college freshmen enrolled in a required writing course. The purpose of the investigation was to dis- cover whether students revise more extensively...

Bilateral Monopoly, Successive Monopoly, and Vertical Integration

What are the effects of vertical integration upon output and prices ? If an industry has been " vertically fragmented ", that is, if it has consisted of a number of separate firms each operating in only one of the successive stages of production, and...

The Verb-Movement Parameter in Second Language Acquisition.

This article investigates effects of instruction on parameter resetting in second language acquisition, where the first and second language (French and English, respectively) differ as to the settings they adopt for verb movement (Pollock, 1989). The...

The Biosurveillance Analytics Resource Directory (BARD): Facilitating the Use of Epidemiological Models for Infectious Disease Surveillance

Kristen Margevicius, Nicholas Generous, Esteban Abeyta, Ben Althouse, Howard Burkom, Lauren Castro, Sara Y. Del Valle, Geoffrey Fairchild, Richard K. Kiang, Andrew P. Morse, Carmen M. Pancerella, Laura L. Pullum, Arvind Ramanathan, Jeffrey Schlegelmilch, Aaron Scott, Kirsten Taylor-McCabe, Alessandro Vespignani, Alina Deshpande

Do subducting seamounts generate or stop large earthquakes

Seamount subduction is a common process in subduction zone tectonics. Contradicting a widely held expectation that subducting seamounts generate large earthquakes, seamounts subduct largely aseismically, producing numerous small earthquakes. On rare occasions...

STATISTICS AND MEDICAL EXPERIMENTATION

SUMMARY Starting from a review of four major experimental areas in medicine (Polio, Coronary Surgery, Diabetes, Breast Cancer), some of the special statistical problems arising in the design and analysis of clinical experiments are reviewed, and the limitations...

Decomposition of Seasonal Time Series: A Model for the Census X-11 Program

This paper shows that the linear filter version of the Census X-11 program for time-series decomposition can be approximately justified in terms of an additive model with stochastic trend, seasonal and noise components. Optimal estimates of the trend...

Fibrin Glue Sandwich Prevents Pancreatic Fistula following Distal Pancreatectomy

Susumu Ohwada, Tetsushi Ogawa, Yoshifumi Tanahashi, Seiji Nakamura, Izumi Takeyoshi, Toshihiro Ohya, Toshiroh Ikeya, Kenji Kawashima, Y. Kawashima, Yasuo Morishita

Sudden Cardiac Death in Young Athletes

Francis McCaffrey, Lcdr David, Sharon Smith Braden, William B. Strong

ARCHAEOLOGY AND THE IMAGE OF THE AMERICAN INDIAN

Archaeologists have treated American native peoples in a detached and somewhat pejorative fashion. In an attempt to explain this treatment, the development of American archaeology is examined in relation to changing views of native peoples that archaeologists...

ANALYSIS AND INFERENCE FOR INCOMPLETELY SPECIFIED MODELS INVOLVING THE USE OF PRELIMINARY TEST(S) OF SIGNIFICANCE

statistical-mathematical model. (B) Problems of estimation and tests of hypotheses. These involve a choice of appropriate functions of the sample observations, called statistics, to estimate the values of, or to test hypotheses concerning, the parameters...

The Impact of Empirical Accuracy Studies On Time Series Analysis and Forecasting

Summary This paper examines a major area of statistics: the application of time series analysis to forecasting, particularly as it applies to the areas of business and economics. This area is unusual in the social sciences in that it permits objective,...

Characteristics of Marek's disease viruses isolated from vaccinated commercial chicken flocks: Association of viral pathotype with lymphoma frequency.

SUMMARY Fifty-three Marek's disease (MD) virus (MDV) isolates were obtained from turkey-herpesvirus-vaccinated broiler or layer flocks with excessive MD losses, from control field flocks without excessive MD losses, and from laboratory collections. Twelve...

SOUNDING GAY: PITCH PROPERTIES IN THE SPEECH OF GAY AND STRAIGHT MEN

\M ANY GAY, LESBIAN, AND BISEXUAL PEOPLE can recall the pre-coming-out experience of rifling through dictionaries, encyclopedias, and textbook indexes, nervously seeking any reference at all that might have something to do with our incipient sexualities....

256 NOTE: An Algorithm for Hierarchical Classifications

SUMMARY The recent interest in numerical classification and its application in the biological sciences to the evaluation of taxa has prompted the introduction of a large number of clustering processes, many of which are justified by empirical results....

Ratemaking Methods and Profit Cycles in Property and Liability Insurance

Insurers and rating bureaus often use regression of past costs, or of loss ratios, on time as a way of estimating future rate requirements. A model of this process suggests that the rates set by such methods would create a quasi-cyclical pattern of underwriting...

The Value of Children in the United States: A New Approach to the Study of Fertility*

National sample data are analyzed to understand the psychological satisfactions of having children and how these relate to fertility attitudes. Responses about advantages of having children are reported for black, white, and Hispanic couples. Multiple-classification...

The Everyday Maker: A New Challenge to Democratic Governance

A powerful feature of Putnam’s social capital framework is the attention it directs towards a critical question for democracies: How is democratic civic engagement created, sustained and expanded (cf Levi, 1996, p. 52) However, Putnam’s investigation...

A TEST FOR SPATIAL PATTERN AT SEVERAL SCALES USING DATA FROM A GRID OF CONTIGUOUS QUADRATS

SUMMARY Detection of the different scales of pattern in plant communities is an important area of plant ecological research, and various tests of pattern have been devised. The method of pattern detection which is ecologically most meaningful suffers...

Generalized Inverses, Wald's Method, and the Construction of Chi-Squared Tests of Fit

Wald's method constructs test statistics having chi-squared limit. ing distributions from estimators having nonsingular multivariate normal limiting distributions, using the inverse of the covariance matrix of the limiting distribution. This method is...

Simultaneous Estimation of the Means of Independent Poisson Laws

A procedure is derived for simultaneously estimating the means of Poisson populations using independent samples. The total loss is the sum of component, standardized squared error losses. The derived procedure is minimax, generalized Bayes, admissible...

Sociology from Women's Experience: A Reaffirmation*

Dorothy E. Smith, Bob Connell, Charles Lemert

Soil and air temperatures during prescribed cerated fires in Central Brazil

Air aindl soil temperatures were imieastured dturinig dry season iheading fires in tlhi-ee diff'erenlt phvsiognomnic formils of native vegetation comi-moni in Central Brazil: cerrado seoisoI strito (denlse scirtu of shrubs andct trees), cam.ipo cerr-ado...

The Demand for Life Insurance in Mexico and The United States: A Comparative Study

This study compares the demand for life insurance in Mexico with that in the United States. It provides a brief historical perspective on the growth of life insurance purchases in the two countries and employs regression analysis to estimate life insurance...

ON DOMINANCE AND VARIETIES OF COMMUTING MATRICES

[4]), a question first raised by Goto. In the same section it is shown that the algebra generated by a pair of commuting n x n matrices can not have dimension greater than n, and that this algebra can always be embedded in a commutative algebra of dimension...

Religious orientation, race and support for the death penalty.

This research addressed the relationship of religious orientation and race to attitudes toward the death penalty. Analysis of data from the 1988 General Social Survey suggested that fundamentalism, evangelism, and devotionalism play significant but substantively...

Parallel coordinate descent methods for big data optimization

In this work we show that randomized (block) coordinate descent methods can be accelerated by parallelization when applied to the problem of minimizing the sum of a partially separable smooth convex function and a simple separable convex function. The...

Energy Analysis and Economic Valuation

Ever since the oil embargo of 1973-74 everyone speaks of the energy crisis. And whether we are "optimists" or "pessimists", by now most of us recognize that what will happen in the end to this crisis is not an idle question. Only economists still refuse...

The population and community ecology of invading insects

Theory is equivocal about invasion success, implicating various combinations of r, a population's intrinsic rate of increase, K, its 'carrying capacity', enemy-imposed death rates and the coefficient of variation in population numbers as determinants...

Solar change and climate: an update in the light of the current exceptional solar minimum

Solar outputs during the current solar minimum are setting record low values for the space age. Evidence is here reviewed that this is part of a decline in solar activity from a grand solar maximum and that the Sun has returned to a state that last prevailed...

ROBUSTNESS OF THE F-TEST TO ERRORS OF BOTH KINDS AND THE CORRELATION BETWEEN THE NUMERATOR AND DENOMINATOR OF THE F-RATIO1

In this study of robustness the insensitivity of the F-test between means to its underlying assumptions (normally distributed populations with equal variances) is investigated. Using two nonnormal distributions (exponential and lognormal), it is found...

THE IDEOLOGY OF "FAG": The School Experience of Gay Students

used to devise ways of "seeing" social organization in the speech and graffiti in which the ideology of "fag" is realized in schools. His conception of the dialogic explicates the relationship between researcher and informants, as well as the dialogues...

The distribution of Levin's measure of attributable risk

SUMMARY Some properties of the sample estimator of attributable risk A, defined here as the proportion of all cases of disease which may be attributed to a risk factor, are considered for the case-control study situation. It is shown that log (1 -A) may...

A PCAC puzzle: π0→γγ in the σ-model

SummaryThe effective coupling constant for π0→γγ should vanish for zero pion mass in theories with PCAC and gauge invariance. It does not so vanish in an explicit perturbation calculation in the σ-model. The resolution of the puzzle is effected...

The Inaccuracy in Using Interviews to Estimate Patient Reliability in Taking Medications at Home

AN IMPORTANT PART of the medical care of many chronically-ill patients is self-administration of oral medications at home over a long period of time. Many improvements in the care available for such patients rest in the development of new pharmacologic...

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