CiteWeb

WorldWeb citation database

Publications in 1993

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A survey of wormhole routing techniques in direct networks

Several research contributions and commercial ventures related to wormhole routing, a switching technique used in direct networks, are discussed. The properties of direct networks are reviewed, and the operation and characteristics of wormhole routing...

ON THE INTERNATIONALIZATION PROCESS OF FIRMS: A CRITICAL ANALYSIS

Even though international marketing has been challenged because of theoretical and methodological shortcomings, very few researchers have actually attempted to analyze the weaknesses based on principles of theory evaluation. In this article, the author...

The Effect of Deleterious Mutations on Neutral Molecular Variation

Selection against deleterious alleles maintained by mutation may cause a reduction in the amount of genetic variability at linked neutral sites. This is because a new neutral variant can only remain in a large population for a long period of time if it...

Photonic band-gap structures

The analogy between electromagnetic wave propagation in multidimensionally periodic structures and electron-wave propagation in real crystals has proven to be a fruitful one. Initial efforts were motivated by the prospect of a photonic band gap, a frequency...

Texture analysis and classification with tree-structured wavelet transform

A multiresolution approach based on a modified wavelet transform called the tree-structured wavelet transform or wavelet packets is proposed. The development of this transform is motivated by the observation that a large class of natural textures can...

Tropical Deforestation and Habitat Fragmentation in the Amazon: Satellite Data from 1978 to 1988

Landsat satellite imagery covering the entire forested portion of the Brazilian Amazon Basin was used to measure, for 1978 and 1988, deforestation, fragmented forest, defined as areas less than 100 square kilometers surrounded by deforestation, and edge...

The Lens Opacities Classification System III

Leo T. Chylack, John K. Wolfe, David Singer, M. Cristina Leske, Mark A. Bullimore, Ian L. Bailey, Judith Friend, Daniel McCarthy, Suh-Yuh Wu

Amyotrophic lateral sclerosis and structural defects in Cu,Zn superoxide dismutase.

Single-site mutants in the Cu,Zn superoxide dismutase (SOD) gene (SOD1) occur in patients with the fatal neurodegenerative disorder familial amyotrophic lateral sclerosis (FALS). Complete screening of the SOD1 coding region revealed that the mutation...

Circulating adhesion molecules in disease.

The demonstration of soluble isoforms of adhesion molecules has added a layer of complexity to our understanding of lymphoid-endothelial cell interactions. This is especially true in the light of observations which show levels of these isoforms to be...

A classical introduction to modern number theory

Bridging the gap between elementary number theory and the systematic study of advanced topics, A Classical Introduction to Modern Number Theory is a well-developed and accessible text that requires only a familiarity with basic abstract algebra. Historical...

Users' Guides to the Medical Literature: II. How to Use an Article About Therapy or Prevention A. Are the Results of the Study Valid?

CLINICAL SCENARIO You are working as an internal medicine resident in a rheumatology rotation and are seeing a 19-year-old woman who has had systemic lupus erythematosus diagnosed on the basis of a characteristic skin rash, arthritis, and renal disease....

MAKING A MIRACLE

This lecture surveys recent models of growth and trade in search of descriptions of technologies that are consistent with episodes of very rapid income growth. Emphasis is placed on the on-the-job accumulation of human capital: learning by doing. Possib...

Morphological grayscale reconstruction in image analysis: applications and efficient algorithms

Two different formal definitions of gray-scale reconstruction are presented. The use of gray-scale reconstruction in various image processing applications discussed to illustrate the usefulness of this transformation for image filtering and segmentation...

Universal approximation bounds for superpositions of a sigmoidal function

Approximation properties of a class of artificial neural networks are established. It is shown that feedforward networks with one layer of sigmoidal nonlinearities achieve integrated squared error of order O(1/n), where n is the number of nodes. The approximated...

The reality of repressed memories

Repression is one of the most haunting concepts in psychology. Something shocking happens, and the mind pushes the experience into some inaccessible corner of the unconscious. Later, the memory may rise up and emerge into consciousness. Repression...

Inside/outside : teacher research and knowledge

Marilyn Cochran-Smith, Susan L. Lytle

Features of gold having micrometer to centimeter dimensions can be formed through a combination of stamping with an elastomeric stamp and an alkanethiol ‘‘ink’’ followed by chemical etching

This letter describes a technique that can be used to produce well‐defined features of gold. The technique involves patterning of a self‐assembled monolayer(SAM) on a gold substrate using an elastomer stamp (fabricated either from a phenol‐formaldehyde...

The mental representation of parity and number magnitude

Stanislas Dehaene, Serge Bossini, Pascal Giraux

Direct observation of kinesin stepping by optical trapping interferometry

Do biological motors move with regular steps? To address this question, we constructed instrumentation with the spatial and temporal sensitivity to resolve movement on a molecular scale. We deposited silica beads carrying single molecules of the motor...

Differential T cell costimulatory requirements in CD28-deficient mice

T cell receptor stimulation without costimulation is insufficient for the induction of an optimal immune response. It is thought that engagement of the CD28 molecule with its ligand B7 provides an essential costimulatory signal without which full activation...

hnRNP PROTEINS AND THE BIOGENESIS OF mRNA

Gideon Dreyfuss, Michael J. Matunis, Serafin Pinol-Roma, Christopher G. Burd

Contour integration by the human visual system: evidence for a local "association field".

The Gestalt law of “good continuation” has been used to describe a variety of phenomena demonstrating the importance of continuity in human perception. In this study, we consider how continuity may be represented by a visual system that filters spatial...

dbEST--database for "expressed sequence tags".

Mark S. Boguski, Todd M. Lowe, Carolyn M. Tolstoshev

Improving the measurement of service quality

Tom J. Brown, Gilbert A. Churchill, J. Paul Peter

Bisphenol-A : an estrogenic substance is released from polycarbonate flasks during autoclaving

In studies to determine whether Saccharomyces cerevisiae produced estrogens, the organism was grown in culture media prepared using distilled water autoclaved in polycarbonate flasks. The yeast-conditioned media showed the presence of a substance that...

Calcium sparks: elementary events underlying excitation-contraction coupling in heart muscle

Spontaneous local increases in the concentration of intracellular calcium, called "calcium sparks," were detected in quiescent rat heart cells with a laser scanning confocal microscope and the fluorescent calcium indicator fluo-3. Estimates of calcium...

Identification and characterization of the tuberous sclerosis gene on chromosome 16

Tuberous sclerosis (TSC) is an autosomal dominant multisystem disorder with loci assigned to chromosomes 9 and 16. Using pulsed-field gel electrophoresis (PFGE), we identified five TSC-associated deletions at 16p 13.3. These were mapped to a 120 kb region...

Socioeconomic factors and cardiovascular disease: a review of the literature.

Despite recent declines in mortality, cardiovascular diseases are the leading cause of death in the United States today. It appears that many of the major risk factors for coronary disease have been identified. Researchers are still learning about different...

Social Loafing: A Meta-Analytic Review and Theoretical Integration

Social loafing is the tendency for individuals to expend less effort when working collectively than when working individually. A meta-analysis of 78 studies demonstrates that social loafing is robust and generalizes across tasks and S populations. A large...

A Dark Side of the American Dream: Correlates of Financial Success as a Central Life Aspiration

Aspiring for financial success is an important aspect of capitalist cultures. Three studies examine the hypothesis that values and expectancies for wealth and money are negatively associated with adjustment and well-being when they are more central to...

Methods for dealing with reaction time outliers

Methods for dealing with reaction time outliers

Prognostic Evaluation of Assumptions Used by Cumulus Parameterizations

Using a spectral-type cumulus parameterization that includes moist downdrafts within a three-dimensional mesoscale model, various disparate closure assumptions are systematically tested within the generalized framework of dynamic control, static control,...

A switch between two-, three-, and four-stranded coiled coils in GCN4 leucine zipper mutants

Coiled-coil sequences in proteins consist of heptad repeats containing two characteristic hydrophobic positions. The role of these buried hydrophobic residues in determining the structures of coiled coils was investigated by studying mutants of the GCN4...

Query evaluation techniques for large databases

Database management systems will continue to manage large data volumes. Thus, efficient algorithms for accessing and manipulating large sets and sequences will be required to provide acceptable performance. The advent of object-oriented and extensible...

Homozygous disruption of the murine MDR2 P-glycoprotein gene leads to a complete absence of phospholipid from bile and to liver disease

Jaap Smit, Alfred H. Schinkel, R.P.J. Oude Elferink, Albert K. Groen, Els Wagenaar, L van Deemter, Carla A. A. M. Mol, R Ottenhoff, N. van der Lugt, M van Roon, M. van der Valk, G. J. A. Offerhaus, A.J.M. Berns, Piet Borst

Cigarette smoking is associated with dose-related and potentially reversible impairment of endothelium-dependent dilation in healthy young adults.

BACKGROUND: Cigarette smoking is the most important modifiable risk factor for atherosclerosis. Endothelial dysfunction is an early event in atherogenesis, and we hypothesized that smoking might be associated with endothelial damage in the systemic arteries...

Automatic partitioning of full-motion video

Partitioning a video source into meaningful segments is an important step for video indexing. We present a comprehensive study of a partitioning system that detects segment boundaries. The system is based on a set of difference metrics and it measures...

Drug assay using antibody mimics made by molecular imprinting

George Vlatakis, Lars I. Andersson, Ralf Müller, Klaus Mosbach

Selectivity of nonsteroidal antiinflammatory drugs as inhibitors of constitutive and inducible cyclooxygenase

Mitchell Ja, Pravit Akarasereenont, Christoph Thiemermann, R J Flower, John R. Vane

The intelligence of emotional intelligence

Emotional intelligence is a type of social intelligence that involves the ability to monitor one's own and others' emotions, to discriminate among them, and to use the information to guide one's thinking and actions (Salovey & Mayer, 1990). We discuss...

A framework for defining logics

The Edinburgh Logical Framework (LF) provides a means to define (or present) logics. It is based on a general treatment of syntax, rules, and proofs by means of a typed λ-calculus with dependent types. Syntax is treated in a style similar to, but more...

INTERLEUKIN-6 IN BIOLOGY AND MEDICINE

This chapter focuses on structure and expression of interleukin-6 (IL-6), which is a cytokine with pleiotropic activities that plays a central role in host defense. IL-6 can exert growth-inducing, growth-inhibitory, and differentiation-inducing activities,...

Jumps and Stochastic Volatility: Exchange Rate Processes Implicit in Thephlx Deutschemark Options

An efficient method is developed for pricing American options on stochastic volatility/jumpdiffusion processes under systematic jump and volatility risk. The parameters implicit in deutsche mark (DM) options of the model and various submodels are estimated...

Identifying proteins from two-dimensional gels by molecular mass searching of peptide fragments in protein sequence databases

William J. Henzel, Todd M. Billeci, John T. Stults, Susan Wong, Christopher Grimley, Colin K. Watanabe

Multicomponent mass transfer

Ross Taylor, Rajamani Krishna

CASE tools as organizational change: investigating incremental and radical changes in systems development

This paper presents the findings of an empirical study into two organizations' experiences with the adoption and use of CASE tools over time. Using a grounded theory research approach, the study characterizes the organizations' experiences in terms of...

Cost-benefit analysis and the environment

This lucid, up-to-date book takes a fresh look at the application of cost–benefit analysis (CBA) to environmental problems ranging from wildlife protection to global warming.

A PET study of visuospatial attention

Maurizio Corbetta, F.M. Miezin, Gordon L. Shulman, S.E Petersen

PHASES OF N = 2 THEORIES IN TWO DIMENSIONS

By looking at phase transitions which occur as parameters are varied in supersymmetric gauge theories, a natural relation is found between sigma models based on Calabi-Yau hypersurfaces in weighted projective spaces and Landau-Ginzburg models. The construction...

International standardization of criteria for the histologic diagnosis of renal allograft rejection: The Banff working classification of kidney transplant pathology

Kim Solez, Hallgrimur Benediktsson, James F. Burdick, Arthur H. Cohen, Robert B. Colvin, Croker Bp, M.G.S. Dunnill, Philip F. Halloran, J. Charles Jennette, Paul A. Keown, Niels Marcussen, Michael J. Mihatsch, Bryan D. Myers, Cynthia C. Nast, Ramos El, Seymour Rosen, David H. Sachs, Daniel R. Salomon, F. Sanfilippo, Regina Verani, E. von Willebrand, Yutaka Yamaguchi

PSYCHOPATHOLOGY AND EARLY EXPERIENCE - A REAPPRAISAL OF RETROSPECTIVE REPORTS

Three potential sources of error in retrospective reports of childhood experiences are documented: low reliability and validity of autobiographical memory in general, the presence of general memory impairment associated with psychopathology, and the presence...

Cdi1, a human G1 and S phase protein phosphatase that associates with Cdk2

Jenő Gyuris, Erica Golemis, Helen Chertkov, Roger Brent

The spectral image processing system (SIPS)‐interactive visualization and analysis of imaging spectrometer data

The Center for the Study of Earth from Space (CSES) at the University of Colorado, Boulder, has developed a prototype interactive software system called the ‘‘Spectral Image Processing System (SIPS)’’ using ‘‘IDL’’ (the Interactive Data...

The Physical Activity Scale for the Elderly (PASE): development and evaluation.

Richard A. Washburn, Kevin W. Smith, Alan M. Jette, Carol A. Janney

A three-dimensional constitutive model for the large stretch behavior of rubber elastic materials

Aconstitutive model is proposed for the deformation of rubber materials which is shown to represent successfully the response of these materials in uniaxial extension, biaxial extension, uniaxial compression, plane strain compression and pure shear. The...

Feeding habits in soil nematode families and genera-an outline for soil ecologists.

Because research on nematode involvement in trophic interactions, foodweb structure, and biodiversity is constrained by lack of an overview of nematode feeding habits, this outline presents a consensus of current thought on nematode feeding habits. The...

Empirical cross-section dynamics in economic growth

Traditional empirical strategies for studying convergence - more generally, the dynamics and determinants of economic growth, can be misleading if important, underlying permanent or growth components are stochastically time-varying. This paper documents...

ENDOTHELIAL- LEUKOCYTE ADHESION MOLECULES

One decade ago, vascular endot helium was commonly considered a "non­ stick" lining of blood vessels that functioned only to prevent blood coagu­ lation and to separate the vascular space fro m tissu es. By comparis on to many other cell type s, endothelial...

Increased amyloid beta-peptide deposition in cerebral cortex as a consequence of apolipoprotein E genotype in late-onset Alzheimer disease.

Donald E. Schmechel, Ann M. Saunders, Warren J. Strittmatter, Barbara J. Crain, C. Hulette, S.H. Joo, Margaret A. Pericak-Vance, Dmitry Goldgaber, A. D. Roses

COSMO: a new approach to dielectric screening in solvents with explicit expressions for the screening energy and its gradient

Starting from the screening in conductors, an algorithm for the accurate calculation of dielectric screening effects in solvents is presented, which leads to rather simple explicit expressions for the screening energy and its analytic gradient with respect...

Very Simple Classification Rules Perform Well on Most Commonly Used Datasets

This article reports an empirical investigation of the accuracy of rules that classify examples on the basis of a single attribute. On most datasets studied, the best of these very simple rules is as accurate as the rules induced by the majority of machine...

Increased amount of nitric oxide in exhaled air of asthmatics

The presence of nitric oxide (NO) in the exhaled air of humans has recently been described. We wanted to assess at what level exhaled NO originates in normal airways, and to determine whether airway inflammation induces changes in the levels of exhaled...

Mesh optimization

Hugues Hoppe, Tony DeRose, Tom Duchamp, John Alan McDonald, Werner Stuetzle

Entity Authentication and Key Distribution

We provide the first formal treatment of entity authentication and authenticated key distribution appropriate to the distributed environment. Addressed in detail are the problems of mutual authentication and authenticated key exchange for the symmetric,...

High levels of HIV-1 in plasma during all stages of infection determined by competitive PCR

Quantitative competitive polymerase chain reaction (QC-PCR) methods were used to quantify virion-associated human immunodeficiency virus type-1 (HIV-1) RNA in plasma from 66 patients with Centers for Disease Control stage I to IVC1 infection. HIV-1 RNA,...

Cooperative Formation of Inorganic-Organic Interfaces in the Synthesis of Silicate Mesostructures

Q. Huo, D. Margolese, Richard Maxwell, Galen D. Stucky, M. Krishnamurty, P. M. Petroff, A. Firouzi, M. Janicke, Bradley F. Chmelka

Foreign Direct Investment

Over the past decade, foreign direct investment (FDI) around the world has nearly tripled, and with this surge have come dramatic shifts in FDI flows. In Foreign Direct Investment, distinguished economists look at changes in FDI, including historical...

Induction of apoptosis in fibroblasts by IL-1β-converting enzyme, a mammalian homolog of the C. elegans cell death gene ced-3

Summary The mammalian interleukin-lfl-converting enzyme (ICE) has sequence similarity to the C. elegans cell death gene ted-3. We show here that overexpression of the murine ICE (mlCE) gene or of the C. elegans ted-3 gene causes Rat-l cells to undergo...

Classification of hepatitis C virus into six major genotypes and a series of subtypes by phylogenetic analysis of the NS-5 region

Hepatitis C virus (HCV) shows substantial nucleotide sequence diversity distributed throughout the viral genome, with many variants showing only 68 to 79% overall sequence similarity to one another. Phylogenetic analysis of nucleotide sequences derived...

Reducing elliptic curve logarithms to logarithms in a finite field

Elliptic curve cryptosystems have the potential to provide relatively small block size, high-security public key schemes that can be efficiently implemented. As with other known public key schemes, such as RSA and discrete exponentiation in a finite field,...

Map-based cloning of a protein kinase gene conferring disease resistance in tomato

The Pto gene in tomato confers resistance to races of Pseudomonas syringae pv. tomato that carry the avirulence gene avrPto. A yeast artificial chromosome clone that spans the Pto region was identified and used to probe a leaf complementary DNA (cDNA)...

NewAgrobacterium helper plasmids for gene transfer to plants

We describe the construction of new helper Ti plasmids forAgrobacterium-mediated plant transformation. These plasmids are derived from three differentAgrobacterium tumefaciens Ti plasmids, the octopine plasmid pTiB6, the nopaline plasmid pTiC58, and the...

Quantum‐well infrared photodetectors

The extensive literature on quantum‐well infrared photodetectors(QWIPs) is reviewed. A detailed discussion is given on the device physics of the intersubband absorption and hot‐carrier transport processes for individual detectors, as well as the high...

Programmed cell death induced by ceramide

Sphingomyelin hydrolysis and ceramide generation have been implicated in a signal transduction pathway that mediates the effects of tumor necrosis factor-alpha (TNF-alpha) and other agents on cell growth and differentiation. In many leukemic cells, TNF-alpha...

Chemical catalysis by colloids and clusters

Lewis, L.N. (General Electric Research Development, Schenectady, Ny (United States))

A novel moesin-, ezrin-, radixin-like gene is a candidate for the neurofibromatosis 2 tumor suppressor

Neurofibromatosis 2 (NF2) is a dominantly inherited disorder characterized by the occurrence of bilateral vestibular schwannomas and other central nervous system tumors including multiple meningiomas. Genetic linkage studies and investigations of both...

Primary structure effects on peptide group hydrogen exchange

Primary structure effects that influence hydrogen- exchange behavior of the peptide group were evaluated by studying, with proton magnetic resonance techniques, small molecule amide models. The effect of various amino acid side chains on peptide groups...

Efferent Connections of the Substantia Nigra and Ventral Tegmental Area in the Rat

Small injections of tritiated leucine and proline confined to the ventral tegmental area (AVT) were found to label fibers ascending: (a) to the entire ventromedial half of the striatum, but most massively to the ventral striatal zone that includes the...

Surgical resection and radiolocalization of the sentinel lymph node in breast cancer using a gamma probe

We have recently reported on a technique of gamma probe localization of radiolabelled lymph nodes to identify the sentinel node in malignant melanoma. In order to determine whether this technique is applicable to assist in staging breast cancer, a pilot...

Reliability and Predictive Validity of the Motivated Strategies for Learning Questionnaire (Mslq)

Paul R. Pintrich, David A. Smith, Teresa Garcia, Wilbert J. McKeachie

Pruning algorithms-a survey

A rule of thumb for obtaining good generalization in systems trained by examples is that one should use the smallest system that will fit the data. Unfortunately, it usually is not obvious what size is best; a system that is too small will not be able...

Explaining the Limited Effectiveness of Legalistic “Remedies” for Trust/Distrust

Organizations frequently adopt formal rules, contracts, or other legalistic mechanisms when interpersonal trust is lacking. But recent research has shown such legalistic “remedies” for trust-related problems to be ineffective in restoring trust. To...

Expression of a mitogen-inducible cyclooxygenase in brain neurons: Regulation by synaptic activity and glucocorticoids

Prostaglandins play important and diverse roles in the CNS. The first step in prostaglandin synthesis involves enzymatic oxidation of arachidonic acid, which is catalyzed by prostaglandin H(PGH) synthase, also referred to as cyclooxygenase. We have cloned...

Differentiation of newly born neurons and glia in the dentate gyrus of the adult rat

In order to determine whether newly born cells in the dentate gyrus of the adult rat express the neuronal marker, neuron-specific enolase, or the glial marker, glial fibrillary acidic protein, we performed combined immunohistochemistry and autoradiography...

A nondestructive method for determining the spring constant of cantilevers for scanning force microscopy

The spring constant of microfabricated cantilevers used in scanning force microscopy (SFM) can be determined by measuring their resonant frequencies before and after adding small end masses. These masses adhere naturally and can be easily removed before...

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