CiteWeb

WorldWeb citation database

Publications in 1998

Page 1
Dendritic cells and the control of immunity

Jacques Banchereau, Ralph M. Steinman

Crystallography & NMR system: A new software suite for macromolecular structure determination.

A new software suite, called Crystallography & NMR System (CNS), has been developed for macromolecular structure determination by X-ray crystallography or solution nuclear magnetic resonance (NMR) spectroscopy. In contrast to existing structure determination...

Separation of Ownership and Control

ABSENT fiat, the form of organization that survives in an activity is the one that delivers the product demanded by customers at the lowest price while covering costs.1 Our goal is to explain the survival of organizations characterized by separation of...

Embryonic Stem Cell Lines Derived from Human Blastocysts

Human blastocyst-derived, pluripotent cell lines are described that have normal karyotypes, express high levels of telomerase activity, and express cell surface markers that characterize primate embryonic stem cells but do not characterize other early...

Cluster analysis and display of genome-wide expression patterns

A system of cluster analysis for genome-wide expression data from DNA microarray hybridization is de- scribed that uses standard statistical algorithms to arrange genes according to similarity in pattern of gene expression. The output is displayed graphically,...

A simple transmit diversity technique for wireless communications

This paper presents a simple two-branch transmit diversity scheme. Using two transmit antennas and one receive antenna the scheme provides the same diversity order as maximal-ratio receiver combining (MRRC) with one transmit antenna, and two receive antennas....

A Tutorial on Support Vector Machines for Pattern Recognition

The tutorial starts with an overview of the concepts of VC dimension and structural risk minimization. We then describe linear Support Vector Machines (SVMs) for separable and non-separable data, working through a non-trivial example in detail. We describe...

Qualitative inquiry and research design : choosing among five traditions

This book explores the philosophical underpinnings, history and key elements of five qualitative inquiry traditions: biography, phenomenology, grounded theory, ethnography and case study. John W Creswell relates research designs to each of the traditions...

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 ≤ z ≤ 0.62. The luminosity distances of these objects are determined by methods that employ relations between...

Intensive blood-glucose control with sulphonylureas or insulin compared with conventional treatment and risk of complications in patients with type 2 diabetes (UKPDS 33)

UK Prospective Diabetes Study (UKPDS) Group* Summary Background Improved blood-glucose control decreases the progression of diabetic microvascular disease, but the effect on macrovascular complications is unknown. There is concern that sulphonylureas...

The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis

A new method for analysing nonlinear and non-stationary data has been developed. The key part of the method is the ‘empirical mode decomposition’ method with which any complicated data set can be decomposed into a finite and often small number of...

CLUSTERS AND THE NEW ECONOMICS OF COMPETITION

Paradoxically, the enduring competitive advantages in a global economy lie increasingly in local things – knowledge, relationships, and motivation that distant rivals cannot match. Untangling the paradox of location in a global economy offers insights...

On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas

This paper is motivated by the need for fundamental understanding of ultimate limits of bandwidth efficient delivery of higher bit-rates in digital wireless communications and to also begin to look into how these limits might be approached. We examine...

WordNet : an electronic lexical database

Adam Kilgarriff, Christiane Fellbaum

Initial conditions and moment restrictions in dynamic panel data models

In this paper we consider estimation of the autoregressive error components model. When the autoregressive parameter is moderately large and the number of time series observations is moderately small, the usual Generalised Methods of Moments (GMM) estimator...

Floral dip: a simplified method for Agrobacterium-mediated transformation of Arabidopsis thaliana

Summary The Agrobacterium vacuum infiltration method has made it possible to transform Arabidopsis thaliana without plant tissue culture or regeneration. In the present study, this method was evaluated and a substantially modified transformation method...

TRIBLOCK COPOLYMER SYNTHESES OF MESOPOROUS SILICA WITH PERIODIC 50 TO 300 ANGSTROM PORES

Use of amphiphilic triblock copolymers to direct the organization of polymerizing silica species has resulted in the preparation of well-ordered hexagonal mesoporous silica structures (SBA-15) with uniform pore sizes up to approximately 300 angstroms....

Prediction of Coronary Heart Disease Using Risk Factor Categories

Background—The objective of this study was to examine the association of Joint National Committee (JNC-V) blood pressure and National Cholesterol Education Program (NCEP) cholesterol categories with coronary heart disease (CHD) risk, to incorporate...

A modified particle swarm optimizer

Evolutionary computation techniques, genetic algorithms, evolutionary strategies and genetic programming are motivated by the evolution of nature. A population of individuals, which encode the problem solutions are manipulated according to the rule of...

Anti De Sitter Space And Holography

: Recently, it has been proposed by Maldacena that large $N$ limits of certain conformal field theories in $d$ dimensions can be described in terms of supergravity (and string theory) on the product of $d+1$-dimensional $AdS$ space with a compact manifold....

Semiconductor Nanocrystals as Fluorescent Biological Labels

Semiconductor nanocrystals were prepared for use as fluorescent probes in biological staining and diagnostics. Compared with conventional fluorophores, the nanocrystals have a narrow, tunable, symmetric emission spectrum and are photochemically stable....

The Mini-International Neuropsychiatric Interview (M.I.N.I.): The Development and Validation of a Structured Diagnostic Psychiatric Interview for DSM-IV and ICD-10

David V. Sheehan, Yves Lecrubier, K. H. Sheehan, P. Amorim, J. Janavs, E. Weiller, T. Hergueta, R. Baker, Gc Dunbar

Mitochondria and apoptosis : Apoptosis

Douglas R. Green, John C. Reed

All-Atom Empirical Potential for Molecular Modeling and Dynamics Studies of Proteins

New protein parameters are reported for the all-atom empirical energy function in the CHARMM program. The parameter evaluation was based on a self-consistent approach designed to achieve a balance between the internal (bonding) and interaction (nonbonding)...

Brownian motion and stochastic calculus

Ioannis Karatzas, Steven E. Shreve

Management Ownership and Market Valuation: An Empirical Analysis

Randall Morck, Andrei Shleifer, Robert W. Vishny

A Practical Guide to Wavelet Analysis

A practical step-by-step guide to wavelet analysis is given, with examples taken from time series of the El Nino–Southern Oscillation (ENSO). The guide includes a comparison to the windowed Fourier transform, the choice of an appropriate wavelet basis...

Leptin and the regulation of body weight in mammals

Jeffrey M. Friedman, Jeffrey L. Halaas

Space-time codes for high data rate wireless communication: performance criterion and code construction

We consider the design of channel codes for improving the data rate and/or the reliability of communications over fading channels using multiple transmit antennas. Data is encoded by a channel code and the encoded data is split into n streams that are...

Component software: beyond object-oriented programming

With the advent of new enabling technologies, the need for the information put forth in this new edition is greater than ever. Component Software, Second Edition explains what the key software component technologies are, how to use them properly, and...

Nonionic Triblock and Star Diblock Copolymer and Oligomeric Surfactant Syntheses of Highly Ordered, Hydrothermally Stable, Mesoporous Silica Structures

A family of highly ordered mesoporous (20−300 A) silica structures have been synthesized by the use of commercially available nonionic alkyl poly(ethylene oxide) (PEO) oligomeric surfactants and poly(alkylene oxide) block copolymers in acid media. Periodic...

Quantum dot bioconjugates for ultrasensitive nonisotopic detection

Highly luminescent semiconductor quantum dots (zinc sulfide—capped cadmium selenide) have been covalently coupled to biomolecules for use in ultrasensitive biological detection. In comparison with organic dyes such as rhodamine, this class of luminescent...

Trends in Alternative Medicine Use in the United States, 1990-1997 Results of a Follow-up National Survey

Context.— A prior national survey documented the high prevalence and costs of alternative medicine use in the United States in 1990.Objective.— To document trends in alternative medicine use in the United States between 1990 and 1997.Design.— Nationally...

Randomized Trial of Estrogen Plus Progestin for Secondary Prevention of Coronary Heart Disease in Postmenopausal Women

Context.— Observational studies have found lower rates of coronary heart disease (CHD) in postmenopausal women who take estrogen than in women who do not, but this potential benefit has not been confirmed in clinical trials.Objective.— To determine...

Atomic Decomposition by Basis Pursuit

The time-frequency and time-scale communities have recently developed a large number of overcomplete waveform dictionaries --- stationary wavelets, wavelet packets, cosine packets, chirplets, and warplets, to name a few. Decomposition into overcomplete...

Human capital

The original publication of Peopleware was a watershed event. With this influential track record, the new revision of Peopleware is likely to make a similar mark on the software community. This excerpt from the new edition, on human capital, provides...

An Architecture for Differentiated Service

This document defines an architecture for implementing scalable service differentiation in the Internet. This architecture achieves scalability by aggregating traffic classification state which is conveyed by means of IP-layer packet marking using the...

Rho GTPases and the Actin Cytoskeleton

The actin cytoskeleton mediates a variety of essential biological functions in all eukaryotic cells. In addition to providing a structural framework around which cell shape and polarity are defined, its dynamic properties provide the driving force for...

Measurements of Omega and Lambda from 42 High-Redshift Supernovae

Saul Perlmutter, Gregory Scott Aldering, G. Goldhaber, Robert Andrew Knop, P. Nugent, P. G. Castro, Susana Elizabeth Deustua, S. Fabbro, Ariel Goobar, Donald E. Groom, I. M. Hook, Alex G. Kim, M. Y. Kim, J. C. Lee, N. J. Nunes, Reynald Pain, C. Pennypacker, Robert Michael Quimby, C. Lidman, R. S. Ellis, M. J. Irwin, Richard G. McMahon, Pilar Ruiz-Lapuente, Nancy A. Walton, B. Schaefer, Brian J. Boyle, A. V. Filippenko, Thomas Matheson, Andrew S. Fruchter, N. Panagia, Heidi Jo Newberg, Warrick J. Couch

The Hierarchy Problem and New Dimensions at a Millimeter

We propose a new framework for solving the hierarchy problem which does not rely on either supersymmetry or technicolor. In this framework, the gravitational and gauge interactions become united at the weak scale, which we take as the only fundamental...

Gauge Theory Correlators from Non-Critical String Theory

We suggest a means of obtaining certain Green's functions in 3+1-dimensional supersymmetric Yang-Mills theory with a large number of colors via non-critical string theory. The non-critical string theory is related to critical string theory in...

Measuring Individual Differences in Implicit Cognition: The Implicit Association Test

An implicit association test (IAT) measures differential association of 2 target concepts with an attribute. The 2 concepts appear in a 2-choice task (e.g., flower vs. insect names), and the attribute in a 2nd task (e.g., pleasant vs. unpleasant words...

Deciphering the biology of Mycobacterium tuberculosis from the complete genome sequence.

Countless millions of people have died from tuberculosis, a chronic infectious disease caused by the tubercle bacillus. The complete genome sequence of the best-characterized strain of Mycobacterium tuberculosis, H37Rv, has been determined and analysed...

A model of saliency-based visual attention for rapid scene analysis

A visual attention system, inspired by the behavior and the neuronal architecture of the early primate visual system, is presented. Multiscale image features are combined into a single topographical saliency map. A dynamical neural network then selects...

Cramming More Components Onto Integrated Circuits

The future of integrated electronics is the future of electronics itself. The advantages of integration will bring about a proliferation of electronics, pushing this science into many new areas. Integrated circuits will lead to such wonders as home computers—or...

Extraordinary optical transmission through sub-wavelength hole arrays

T. W. Ebbesen, Henri J. Lezec, Hadi F. Ghaemi, Tineke Thio, P. A. Wolff

Space-time codes for high data rate wireless communication: performance criterion and code construction

We consider the design of channel codes for improving the data rate and/or the reliability of communications over fading channels using multiple transmit antennas. Data is encoded by a channel code and the encoded data is split into n streams that are...

Not So Different After All: A Cross-Discipline View of Trust

Our task is to adopt a multidisciplinary viewof trust within and between firms, in an effort tosynthesize and give insight into a fundamentalconstruct of organizational science. We seek toidentify the shared understandings of trustacross disciplines,...

Primary Prevention of Acute Coronary Events With Lovastatin in Men and Women With Average Cholesterol Levels Results of AFCAPS/TexCAPS

Context.— Although cholesterol-reducing treatment has been shown to reduce fatal and nonfatal coronary disease in patients with coronary heart disease (CHD), it is unknown whether benefit from the reduction of low-density lipoprotein cholesterol (LDL-C)...

THE ECONOMETRICS OF FINANCIAL MARKETS

John Y. Campbell, Andrew W. Lo, A. Craig Mackinlay, Robert Whitelaw

Global Burden of Diabetes, 1995–2025: Prevalence, numerical estimates, and projections

OBJECTIVE To estimate the prevalence of diabetes and the number of people with diabetes who are ≥20 years of age in all countries of the world for three points in time, i.e., the years 1995, 2000, and 2025, and to calculate additional parameters, such...

Frontotemporal lobar degeneration A consensus on clinical diagnostic criteria

Article abstract-Objectiue: To improve clinical recognition and provide research diagnostic criteria for three clinical syndromes associated with frontotemporal lobar degeneration. Methods: Consensus criteria for the three prototypic syndromes-frontotemporal...

Tamoxifen for Prevention of Breast Cancer: Report of the National Surgical Adjuvant Breast and Bowel Project P-1 Study

Background: The finding of a decrease in contralateral breast cancer incidence following tamoxifen administration for adjuvant therapy led to the concept that the drug might play a role in breast cancer prevention. To test this hypothesis, the National...

Multiuser Detection

From the Publisher:The development of multiuser detection techniques is one of the most important recent advances in communications technology. This self-contained and comprehensive book sets out the basic details of multiuser detection, starting with...

Nonlinear component analysis as a kernel eigenvalue problem

A new method for performing a nonlinear form of principal component analysis is proposed. By the use of integral operator kernel functions, one can efficiently compute principal components in high-dimensional feature spaces, related to input space by...

A performance comparison of multi-hop wireless ad hoc network routing protocols

An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration. Due to the limited transmission range of wireless network interfaces,...

Room-temperature transistor based on a single carbon nanotube

Sander J. Tans, Alwin R. M. Verschueren, Cees Dekker

Effect of intensive blood-glucose control with metformin on complications in overweight patients with type 2 diabetes (UKPDS 34)

Turner Rc, R. R. Holman, Irene M. Stratton, Carole A. Cull, D. R. Matthews, Suliana Manley, V Frighi, D Wright, Andrew Neil, Em Kohner, H McElroy, C Fox, D. R. Hadden, Grp Ukpds

Declining morbidity and mortality among patients with advanced human immunodeficiency virus infection. HIV Outpatient Study Investigators.

Frank J. Palella, Kathleen M. Delaney, Anne C. Moorman, Mark O. Loveless, Jack Fuhrer, Glen A. Satten, Diane J. Aschman, Scott D. Holmberg

Diarrheagenic Escherichia coli

Escherichia coli is the predominant nonpathogenic facultative flora of the human intestine. Some E. coli strains, however, have developed the ability to cause disease of the gastrointestinal, urinary, or central nervous system in even the most robust...

The structure of the potassium channel: molecular basis of K+ conduction and selectivity.

The potassium channel from Streptomyces lividans is an integral membrane protein with sequence similarity to all known K+ channels, particularly in the pore region. X-ray analysis with data to 3.2 angstroms reveals that four identical subunits create...

CONDENSATION—Conditional Density Propagation for Visual Tracking

The problem of tracking curves in dense visual clutter is challenging. Kalman filtering is inadequate because it is based on Gaussian densities which, being unimodal, cannot represent simultaneous alternative hypothe- ses. The Condensation algorithm uses...

Bilateral filtering for gray and color images

Bilateral filtering smooths images while preserving edges, by means of a nonlinear combination of nearby image values. The method is noniterative, local, and simple. It combines gray levels or colors based on both their geometric closeness and their photometric...

Consumers and Their Brands: Developing Relationship Theory in Consumer Research

Although the relationship metaphor dominates contemporary marketing thought and practice, surprisingly little empirical work has been conducted on relational phenomena in the consumer products domain, particularly at the level of the brand. In this article,...

Neurogenesis in the adult human hippocampus

The genesis of new cells, including neurons, in the adult human brain has not yet been demonstrated. This study was undertaken to investigate whether neurogenesis occurs in the adult human brain, in regions previously identified as neurogenic in adult...

Theory of Bose-Einstein condensation in trapped gases

: The phenomenon of Bose-Einstein condensation of dilute gases in traps is reviewed from a theoretical perspective. Mean-field theory provides a framework to understand the main features of the condensation and the role of interactions between particles....

Rate control for communication networks: shadow prices, proportional fairness and stability

This paper analyses the stability and fairness of two classes of rate control algorithm for communication networks. The algorithms provide natural generalisations to large-scale networks of simple additive increase/multiplicative decrease schemes, and...

International Norm Dynamics and Political Change

Norms have never been absent from the study of international politics, but the sweeping “ideational turn” in the 1980s and 1990s brought them back as a central theoretical concern in the field. Much theorizing about norms has focused on how they create...

An introduction to efficiency and productivity analysis

The second edition of An Introduction to Efficiency and Productivity Analysis is designed to be a general introduction for those who wish to study efficiency and productivity analysis. The book provides an accessible, well-written introduction to the...

Preventing reading difficulties in young children

Catherine E. Snow, M. Susan Burns, Peg Griffin

New Dimensions at a Millimeter to a Fermi and Superstrings at a TeV

Recently, a new framework for solving the hierarchy problem has been proposed which does not rely on low energy supersymmetry or technicolor. The gravitational and gauge interactions unite at the electroweak scale, and the observed weakness of gravity...

Security: A New Framework for Analysis

Barry Buzan, Jaap de Wilde, Ole Waeve

Extension of Life-Span by Introduction of Telomerase into Normal Human Cells

Normal human cells undergo a finite number of cell divisions and ultimately enter a nondividing state called replicative senescence. It has been proposed that telomere shortening is the molecular clock that triggers senescence. To test this hypothesis,...

Agency Problems and Residual Claims

Eugene F. Fama, Michael C. Jensen

A Laser Ablation Method for the Synthesis of Crystalline Semiconductor Nanowires

A method combining laser ablation cluster formation and vapor-liquid-solid (VLS) growth was developed for the synthesis of semiconductor nanowires. In this process, laser ablation was used to prepare nanometer-diameter catalyst clusters that define the...

Predictive Reward Signal of Dopamine Neurons

Schultz, Wolfram. Predictive reward signal of dopamine neurons. J. Neurophysiol. 80: 1–27, 1998. The effects of lesions, receptor blocking, electrical self-stimulation, and drugs of abuse suggest that midbrain dopamine systems are involved in processing...

On combining classifiers

We develop a common theoretical framework for combining classifiers which use distinct pattern representations and show that many existing schemes can be considered as special cases of compound classification where all the pattern representations are...

ADDITIONAL MODULES FOR VERSATILE AND ECONOMICAL PCR-BASED GENE DELETION AND MODIFICATION IN SACCHAROMYCES CEREVISIAE

An important recent advance in the functional analysis of Saccharomyces cerevisiae genes is the development of the one-step PCR-mediated technique for deletion and modification of chromosomal genes. This method allows very rapid gene manipulations without...

Incidence of Adverse Drug Reactions in Hospitalized Patients: A Meta-analysis of Prospective Studies

Objective.— To estimate the incidence of serious and fatal adverse drug reactions (ADR) in hospital patients.Data Sources.— Four electronic databases were searched from 1966 to 1996.Study Selection.— Of 153, we selected 39 prospective studies from...

Two CD95 (APO‐1/Fas) signaling pathways

Carsten Scaffidi, Simone Fulda, Anu Srinivasan, Feng Li, Kevin J. Tomaselli, Klaus-Michael Debatin, Peter H. Krammer, Marcus E. Peter

INTCAL98 radiocarbon age calibration, 24,000-0 cal BP

The focus of this paper is the conversion of radiocarbon ages to calibrated (cal) ages for the interval 24,000-0 cal BP (Before Present, 0 cal BP = AD 1950), based upon a sample set of dendrochronologically dated tree...

The Financial Accelerator in a Quantitative Business Cycle Framework

This paper develops a dynamic general equilibrium model that is intended to help clarify the role of credit market frictions in business fluctuations, from both a qualitative and a quantitative standpoint. The model is a synthesis of the leading approaches...

An internally consistent thermodynamic data set for phases of petrological interest

The thermodynamic properties of 154 mineral end-members, 13 silicate liquid end-members and 22 aqueous fluid species are presented in a revised and updated data set. The use of a temperature-dependent thermal expansion and bulk modulus, and the use of...

Rapid prototyping of microfluidic systems in poly(dimethylsiloxane)

This paper describes a procedure that makes it possible to design and fabricate (including sealing) microfluidic systems in an elastomeric materialpoly(dimethylsiloxane) (PDMS)in less than 24 h. A network of microfluidic channels (with width >20 μm)...

Quantum calculation of molecular energies and energy gradients in solution by a conductor solvent model

A new implementation of the conductor-like screening solvation model (COSMO) in the GAUSSIAN94 package is presented. It allows Hartree−Fock (HF), density functional (DF) and post-HF energy, and HF and DF gradient calculations:  the cavities are modeled...

Investor Psychology and Security Market Under- and Overreactions

We propose a theory of securities market under- and overreactions based on two well-known psychological biases: investor overconfidence about the precision of private information; and biased self-attribution, which causes asymmetric shifts in investors’...

Relative absorptive capacity and interorganizational learning

Much of the prior research on interorganizational learning has focused on the role of absorptive capacity, a firn's ability to value, assimilate, and utilize new external knowledge. However, this definition of the construct suggests that a firm has an...

Convergence Properties of the Nelder--Mead Simplex Method in Low Dimensions

The Nelder--Mead simplex algorithm, first published in 1965, is an enormously popular direct search method for multidimensional unconstrained minimization. Despite its widespread use, essentially no theoretical results have been proved explicitly for...

Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory

We estimate a forward-looking monetary policy reaction function for the postwar US economy, pre- and post-October 1979. Our results point to substantial differences in the estimated rule across periods. In particular, interest rate policy in the Volcker-Greenspan...

Relativistic quantum mechanics

James D. Bjorken, Sidney D. Drell

A National Cancer Institute Workshop on Microsatellite Instability for Cancer Detection and Familial Predisposition: Development of International Criteria for the Determination of Microsatellite Instability in Colorectal Cancer

In December 1997, the National Cancer Institute sponsored “The International Workshop on Microsatellite Instability and RER Phenotypes in Cancer Detection and Familial Predisposition,” to review and unify the field. The following recommendations were...

Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory

We estimate a forward-looking monetary policy reaction function for thepostwar United States economy, before and after Volcker's appointmentas Fed Chairman in 1979. Our results point to substantial differencesin the estimated rule across periods. In particular,...

Snakes, shapes, and gradient vector flow

Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. Problems associated with initialization and poor convergence to boundary concavities, however, have limited...

Empirical analysis of predictive algorithms for collaborative filtering

Collaborative filtering or recommender systems use a database about user preferences to predict additional topics or products a new user might like. In this paper we describe several algorithms designed for this task, including techniques based on correlation...

Econometric models and economic forecasts

First course in Econometrics in Economics Departments at better schools, also Economic/Business Forecasting. Statistics prerequisite but no calculus. Slightly higher level and more comprehensive than Gujarati (M-H, 1996) . P-R covers more time series...

The free radical theory of aging matures.

Beckman, Kenneth B., and Bruce N. Ames. The Free Radical Theory of Aging Matures. Physiol. Rev. 78: 547–581, 1998. — The free radical theory of aging, conceived in 1956, has turned 40 and is rapidly attracting the interest of the mainstream of biological...

Cleavage of BID by Caspase 8 Mediates the Mitochondrial Damage in the Fas Pathway of Apoptosis

We report here that BID, a BH3 domain–containing proapoptotic Bcl2 family member, is a specific proximal substrate of Casp8 in the Fas apoptotic signaling pathway. While full-length BID is localized in cytosol, truncated BID (tBID) translocates to mitochondria...

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