Showing papers by "University of Texas at Austin published in 1983"
TL;DR: A brief, 12-item version of the Fear of Negative Evaluation (FNE) scale has been proposed by as discussed by the authors that correlates very highly with the original scale and demonstrates psychometric properties that are nearly identical to those of the full-length scale.
Abstract: Although the Fear of Negative Evaluation (FNE) Scale has widespread applicability to many areas of research in personality and social psychology, its utility is sometimes limited by its length. This article presents a brief, 12-item version of the FNE that correlates very highly (f96) with the original scale and that demonstrates psychometric properties that are nearly identical to those of the full-length scale.
1,838 citations
TL;DR: In this paper, a review of the state of the art in multiparameter shrinkage estimators with emphasis on the empirical Bayes viewpoint, particularly in the case of parametric prior distributions, is presented.
Abstract: This article reviews the state of multiparameter shrinkage estimators with emphasis on the empirical Bayes viewpoint, particularly in the case of parametric prior distributions. Some successful applications of major importance are considered. Recent results concerning estimates of error and confidence intervals are described and illustrated with data.
1,409 citations
TL;DR: In this article, the authors used the 4-21 Gaussian basis set to calculate in and out-of-plane force fields for the title compounds at the ab initio HartreeFock level.
Abstract: Fully optimized geometries, complete in- and out-of-plane force fields, and dipole moment derivatives have been
calculated for the title compounds at the ab initio HartreeFock level using the 4-21 Gaussian basis set. The theoretical information is combined with experimental data by fitting the calculated force constants through a few parameters to the observed frequencies to obtain the final, scaled quantum mechanical (SQM) force fields. Recommendations for a standard procedure of this type are given. The SQM force fields give excellent reproduction of the fundamental frequencies and are considered as approaching the best accuracy which can be achieved in a harmonic treatment. The infrared intensities obtained at this level of theory are only qualitative estimates, but they are still useful for making assignments more reliable.
1,401 citations
TL;DR: This article used a split-sample analysis and found that a model that more closely approximates distributional assumptions and uses a nonparametric retransformation factor performs better in terms of mean squared forecast error.
Abstract: We have tested alternative models of the demand for medical care using experimental data. The estimated response of demand to insurance plan is sensitive to the model used. We therefore use a split-sample analysis and find that a model that more closely approximates distributional assumptions and uses a nonparametric retransformation factor performs better in terms of mean squared forecast error. Simpler models are inferior either because they are not robust to outliers (e.g., ANOVA, ANOCOVA), or because they are inconsistent when strong distributional assumptions are violated (e.g., a two-parameter Box-Cox transformation).
1,303 citations
TL;DR: In this article, a non-trivial analog of gravitation theory in two dimensional spacetime is built upon this fact, with the inverse of the central charge playing the role of the gravitational constant.
1,055 citations
TL;DR: In this paper, a systematic study is made of theories in which supergravity is spontaneously broken in a ''hidden'' sector of superfields that interact with ordinary matter only through supergravity.
Abstract: A systematic study is made of theories in which supergravity is spontaneously broken in a ''hidden'' sector of superfields that interact with ordinary matter only through supergravity. General rules are given for calculating the low-energy effective potential in such theories. This potential is given as the sum of ordinary supersymmetric terms involving a low-energy effective superpotential whose mass terms arise from integrating out the heavy particles associated with grand unification, plus supersymmetry-breaking terms that depend on the details of the hidden sector and the Kaehler potential only through the values of four small complex mass parameters. The result is not the same as would be obtained by ignoring grand unification and inserting small mass parameters into the superpotential from the beginning. The general results are applied to a class of models with a pair of Higgs doublets.
913 citations
TL;DR: In this article, the implications of a theoretical tradition for the philosophy of science for marketing scientists have been discussed, focusing on one neglected area, namely the implications for the select few.
Abstract: Only recently have marketing scientists become concerned with issues in the philosophy of science. This paper points to one neglected area—the implications of a theoretical tradition for the select...
820 citations
TL;DR: In this paper, it was shown that the generalized Heisenberg inequality does not properly express the quantum uncertainty principle and that it is, in general, too weak to express the principle.
Abstract: The object of this Letter is to show that except in the case of canonically conjugate observables, the generalized Heisenberg inequality does not properly express the quantum uncertainty principle. It is, in general, too weak. An inequality is obtained which does express the principle.
782 citations
TL;DR: A survey of theories of immiscible mixtures can be found in this article, where it is emphasized that the immiscibility of such mixtures has important consequences concerning the forms of the constitutive equations, and that it can also result in the mixtures exhibiting microstructural effects.
566 citations
TL;DR: The results suggest that indigo formation is due to the combined activities of tryptophanase and naphthalene dioxygenase.
Abstract: A fragment of plasmid NAH7 from Pseudomonas putida PpG7 has been cloned and expressed in Escherichia coli HB101. Growth of the recombinant Escherichia coli in nutrient medium results in the formation of indigo. The production of this dye is increased in the presence of tryptophan or indole. Several bacteria that oxidize aromatic hydrocarbons to cis-dihydrodiols also oxidize indole to indigo. The results suggest that indigo formation is due to the combined activities of tryptophanase and naphthalene dioxygenase.
534 citations
TL;DR: The ``volume segment'' representation presented in this paper is a volumetric representation that facilitates modification yet is descriptive of surface detail in a bounding volume approximating the object generating the contours.
Abstract: Occluding contours from an image sequence with view-point specifications determine a bounding volume approximating the object generating the contours. The initial creation and continual refinement of the approximation requires a volumetric representation that facilitates modification yet is descriptive of surface detail. The ``volume segment'' representation presented in this paper is one such representation.
TL;DR: In this article, the authors examined whether the generalization of Eckart's theory developed by Israel has succeeded in eliminating undesirable features: thermal and viscous fluctuations propagate acausally; there exist generic short wavelength secular instabilities; and there is not a well posed initial value problem for rotating fluids.
24 Jan 1983
TL;DR: It is argued that this technique can provide a practical alternative to manual proof construction or use of a mechanical theorem prover for verifying many finite state concurrent systems.
Abstract: We give an efficient procedure for verifying that a finite state concurrent system meets a specification expressed in a (propositional) branching-time temporal logic. Our algorithm has complexity linear in both the size of the specification and the size of the global transition graph for the concurrent system. We also show how the logic and our algorithm can be modified to handle fairness. We argue that this technique can provide a practical alternative to manual proof construction or use of a mechanical theorem prover for verifying many finite state concurrent systems.
TL;DR: In this article, the observed dynamic evolution of a system can be described entirely in terms of stationary observables as a dependence upon internal clock readings, which is consistent with all observations to assume that any closed system such as the Universe is in a stationary state.
Abstract: Because the time parameter in the Schr\"odinger equation is not observable, energy apparently obeys a superselection rule in the same sense that charge does. That is, observables must all commute with the Hamiltonian and hence be stationary. This means that it is consistent with all observations to assume that any closed system such as the Universe is in a stationary state. We show how the observed dynamic evolution of a system can be described entirely in terms of stationary observables as a dependence upon internal clock readings.
TL;DR: It is shown that all true deadlocks are detected and that no false deadlock reported, and the algorithms can be applied in distributed database and other message communication systems.
Abstract: Distributed deadlock models are presented for resource and communication deadlocks. Simple distributed algorithms for detection of these deadlocks are given. We show that all true deadlocks are detected and that no false deadlocks are reported. In our algorithms, no process maintains global information; all messages have an identical short length. The algorithms can be applied in distributed database and other message communication systems.
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01 Jan 1983TL;DR: In this paper, a model of interaction stages for coming together and coming apart in a relationship is presented, and the Genesis of dialogue is discussed, as well as the process of coming together, coming apart, and coming together.
Abstract: Part I Human Communication in Developing Relationships 1 Communication: The Lifeblood of Relationships Relationship Messages Five Important Misconceptions About Communication in Relationships How Communication Changes as Our Relationships Develop Dimensions of Communication: Patterns and Variations Summary Selected Readings Notes 2 Stages of Coming Together and Coming Apart Types of Relationships A Model of Interaction Stages in Relationships Interaction Stages Movement: In, Out, and Around Stages Summary Selected Readings Notes Part II Factors Affecting Human Communication Behavior in Relationships 3 The Nature of the Communicators The Influence of Interpersonal Needs The Role of Interpersonal Needs Analyzing Our Own Needs and Those of Others Interpersonal Needs Across the Lifespan Interpersonal Needs of Females and Males Summary Selected Readings Notes 4 The Communication Environment: Cultural and Physical The Influence of the Cultural Environment The Influence of the Immediate Physical Environment or Setting Summary Selected Readings Notes Part III Interaction Patterns for Coming Together 5 The Genesis of Dialogue Getting Together Sizing Up the Other Person The Many Faces of Attraction Summary Selected Readings Notes 6 Interaction Rituals Communication Rules The Rhetoric of Hello Forms of Address Relationship "Openers" Small(?) Talk Summary Selected Readings Notes 7 The Foundations of Intimate Dialogue Types of Love Liking Versus Loving Intimacy and Close Relationships Foundations of Intimacy Summary Selected Readings Notes Part IV Interaction Patterns and the Maintenance of Relationships 8 Maintaining Relationships Through Dialogue: Disclosures, Lies, and Fights Relationship Maintenance Self-Disclosure, Confidentiality, and Trust Lying Constructive Conflict Summary Selected Readings Notes 9 Maintaining Relationships Through Dialogue: Commitment and Intimacy Commitment and Commitment Talk Personal Idioms Giving Compliments and Gifts Giving Comfort and Advice Persuasion Sex Talk Intimate Play Intimacy Without Words Summary Selected Readings Notes Part V Interaction Patterns for Coming Apart 10 Communication and the Process of Relationship Disengagement Terminating Relationships Communication During Relationship Decay: Return of the Stranger Summary Selected Readings Notes 11 The Dialogue of Distance and De-escalation Some Potentially Destructive Patterns of Communication: An Interpersonal Chamber of Horrors Summary Selected Readings Notes Part VI Toward More Effective Communication in Relationships 12 Evaluating and Developing Effective Communication in Relationships The Relativity of Effective Communication Perceptions of Effective Communication Rx for Effective Communication Becoming an Effective Communicator Writing Your Own Story Communicating Effectively Together Summary Selected Readings Notes Author Index Subject Index
TL;DR: Etudes de suspensions colloidales aqueuses de ZnS et de la relation entre l'intensite d'emission and la distribution spectrale, et des facteurs tels que la concentration du dopant Mn 2+, the presence d'oxygene dissous ou d'ions sulfure en solution, the presence de lacunes dans le reseau de soufre, the photodegradation and l'extinction de la luminescence par des reactifs en solution.
Abstract: Etudes de suspensions colloidales aqueuses de ZnS et de la relation entre l'intensite d'emission et la distribution spectrale, et des facteurs tels que la concentration du dopant Mn 2+ , la presence d'oxygene dissous ou d'ions sulfure en solution, la presence de lacunes dans le reseau de soufre, la photodegradation et l'extinction de la luminescence par des reactifs en solution
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TL;DR: This article explored Nigeria's pre-colonial and colonial past, and its journey from independence to statehood, examining key themes such as colonialism, religion, slavery, nationalism and the economy, and showed how Nigeria's history has been swayed by the vicissitudes of the world around it.
Abstract: Nigeria is Africa's most populous country and the world's eighth largest oil producer, but its success has been undermined in recent decades by ethnic and religious conflict, political instability, rampant official corruption and an ailing economy. Toyin Falola, a leading historian intimately acquainted with the region, and Matthew Heaton, who has worked extensively on African science and culture, combine their expertise to explain the context to Nigeria's recent troubles through an exploration of its pre-colonial and colonial past, and its journey from independence to statehood. By examining key themes such as colonialism, religion, slavery, nationalism and the economy, the authors show how Nigeria's history has been swayed by the vicissitudes of the world around it, and how Nigerians have adapted to meet these challenges. This book offers a unique portrayal of a resilient people living in a country with immense, but unrealized, potential.
TL;DR: The results suggest that activity-dependent neuromodulation may be a mechanism underlying associative information storage and point to aspects of subcellular processes that might be involved in the formation of neural associations.
Abstract: A cellular analog of associative learning has been demonstrated in individual sensory neurons of the tail withdrawal reflex of Aplysia. Sensory cells activated by intracellular current injection shortly before a sensitizing shock to the animal's tail display significantly more facilitation of their monosynaptic connections to a tail motor neuron than cells trained either with intracellular stimulation unpaired to tail shock or with tail shock alone. This associative effect is acquired rapidly and is expressed as a temporally specific amplification of heterosynaptic facilitation. The results suggest that activity-dependent neuromodulation may be a mechanism underlying associative information storage and point to aspects of subcellular processes that might be involved in the formation of neural associations.
TL;DR: In this article, a noncanonical Hamiltonian theory of dynamical systems is presented and applied to magnetic field line flow, which allows all the theorems of Hamiltonian mechanics (most importantly, Noether's theorem, relating symmetries and invariants) to be applied to the magnetic field lines system.
TL;DR: The authors showed that the comparative fallacy can be a serious obstacle to the investigation of crucial questions about the nature of learners' languages and that it can obscure the character of the interlanguage.
Abstract: Studies of second language acquisition often employ analytical concepts defined relative to the target language (such as obligatory context, error, etc.). It is demonstrated here that this practice can be a serious obstacle to the investigation of crucial questions about the nature of learners' languages. The difficulties caused by this practice—called here the “comparative fallacy”—are illustrated in an investigation of the framework proposed by Tarone, Frauenfelder, and Selinker (1976) to study the issue of interlanguage systematicity and variability. Their framework is shown to result in incorrect or unrevealing analyses of systematicity and to obscure the character of the interlanguage. These defects are shown to be the results of the comparative fallacy.
TL;DR: In this article, an analysis of 5.5 years of Lageos satellite range data reveal significant residual nodal signatures: an acceleration and annual and semiannual periods of variation in the zonal gravitational harmonic J2 coefficient and hence the polar moment of inertia.
Abstract: Analysis of 5.5 years of Lageos satellite range data reveal significant residual nodal signatures: an acceleration and annual and semiannual periods. These signatures primarily reflect variations in the zonal gravitational harmonic J2 coefficient and hence the polar moment of inertia. The implied decrease of J2 = -3 x 10 to the -11th/yr is consistent with both historical observations of the nontidal acceleration of the earth's rotation and models of viscous rebound of the solid earth from the decrease in load due to the last deglaciation.
TL;DR: In this article, nonclassical friction laws are proposed in an attempt to overcome both physical and mathematical difficulties; the former arises from the fact that this law provides a poor model of frictional stresses at points on metallic surfaces in contact, and the latter is due to the existence of solutions of the governing equations can be proved only for very special situations.
Abstract: The use of the classical Coulomb law of friction in the formulation of contact problems in elasticity leads to both physical and mathematical difficulties; the former arises from the fact that this law provides a poor model of frictional stresses at points on metallic surfaces in contact, and the latter is due to the fact that the existence of solutions of the governing equations can be proved only for very special situations. In the present paper, nonclassical friction laws are proposed in an attempt to overcome both of these difficulties. We consider a class of contact problems involving the equilibrium of linearly elastic bodies in contact on surfaces on which nonlocal and nonlinear friction laws are assumed to hold. The physics of friction between metallic bodies in contact is discussed and arguments in support of the theory are presented. Variational principles for boundary-value problems in elasticity in which such nonlinear nonlocal laws hold are then developed. A brief discussion of the questions of existence and uniqueness of solutions to the nonlocal and nonlinear problems is given.
TL;DR: This paper found that adolescents who exhibit greater degrees of identity exploration and role-taking skill participate in relationships in which both individuality and connectedness are expressed, indicating that they are more likely to explore their own identities.
Abstract: Observations of family communication indicate that adolescents who exhibit greater degrees of identity exploration and role-taking skill participate in relationships in which both individuality and connectedness are expressed.
TL;DR: Hematologic remission of the disease was obtained in 5 patients and enlarged spleens decreased in 3 of 3 patients maintained on HuIFN-alpha, 3 X 10(6) U daily or every other day, for 6-35+ wk.
TL;DR: For instance, this paper found that participants recall occasions on which they had experienced guilt or shame and rated these experiences on a large number of scales that represented either basic dimensions of emotion or attributes previously postulated to differentiate between these two emotions.
Abstract: The purpose of this research was to see if naive raters could distinguish between guilt and shame in ways consistent with the descriptions of emotion theorists. In two studies, 152 participants recalled occasions on which they had experienced guilt or shame and rated these experiences on a large number of scales that represented either basic dimensions of emotion or attributes previously postulated to differentiate between these two emotions. Shame and guilt situations differed on a number of attributes, including felt powerfulness, self-control, self-consciousness and exposure, activity, inferiority, surprise, alienation from others, facial sensation, self-attribution of justice, and expectation of punishment. Many commonalities in the meaning of the two concepts were also suggested, most importantly in terms of basic attributes such as pain, tension, and arousal. Results were consistent with several previous accounts of the essential differences between guilt and shame, but not with all such descriptions.
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TL;DR: It is shown that any embedding of K7 in three-dimensional euclidean space contains a knotted cycle and that any embedded cycle of K6 contains a pair of disjoint cycles which are homologically linked.
Abstract: The main purpose of this paper is to show that any embedding of K7 in three-dimensional euclidean space contains a knotted cycle. By a similar but simpler argument, it is also shown that any embedding of K6 contains a pair of disjoint cycles which are homologically linked.
TL;DR: Local accumulation of surface-active phospholipids may be an integral component of the cytoprotective mechanism activated by prostaglandin treatment and reduced acid-induced gastric ulcerogenesis and bleeding in rats.
Abstract: Intragastric administration of a liposomal surfactant suspension markedly reduced acid-induced gastric ulcerogenesis and bleeding in rats. The concentration of surface-active molecules intrinsically present in the gastric mucosa was increased two to six times by administration of 16,16-dimethyl prostaglandin E2. Thus, local accumulation of surface-active phospholipids may be an integral component of the cytoprotective mechanism activated by prostaglandin treatment.
TL;DR: In this article, it was shown that the N=4 supersymmetric Yang-Mills gauge theory is ultra-violet finite to all orders in perturbation theory for a specific form of the light-cone gauge.