Jean Piaget, Malcolm Piercy, D. E. Berlyne
Edward L. Thorndike, I. Lorge
Numerical assessments of global air quality and potential changes in atmospheric chemical constituents require estimates of the surface fluxes of a variety of trace gas species. We have developed a global model to estimate emissions of volatile organic...
R. W. Jack, B. Ray
This paper considers causal inference and sample selection bias in nonexperimental settings in which (i) few units in the nonexperimental comparison group are comparable to the treatment units, and (ii) selecting a subset of comparison units similar to...
The general view of descriptive research as a lower level form of inquiry has influenced some researchers conducting qualitative research to claim methods they are really not using and not to claim the method they are using: namely, qualitative description....
Zindel V. Segal, J. Mark Williams, John D. Teasdale
Shona L. Brown, Kathleen M. Eisenhardt
Watts S. Humphrey
Diabetes mellitus is a strong risk factor for cardiovascular and renal disease. We investigated whether the angiotensin-converting-enzyme (ACE) inhibitor ramipril can lower these risks in patients with diabetes.
Felipe Fernández-Armesto, Samuel P. Huntington
growth curves,usingthesame data asintheBritish 1965growth standards. Inthevelocity standards centiles are givenforchildren whoareearly- andlatematuring aswell asforthose whomatureattheaverageage(thus extending theuse oftheprevious charts). Limits ofnormality...
W. R. Martin, Eades Cg, Thompson Ja, Re Huppler, P.E. Gilbert
R. J. Gryglewski, Richard M.J. Palmer, S. Moncada
Calvin Dytham, Richard T. T. Forman
Free-standing aligned carbon nanotubes have previously been grown above 700°C on mesoporous silica embedded with iron nanoparticles. Here, carbon nanotubes aligned over areas up to several square centimeters were grown on nickel-coated glass below 666°C...
Robert G. Wetzel
We review the recent rapid progress in the statistical physics of evolving networks. Interest has focused mainly on the structural properties of complex networks in communications, biology, social sciences and economics. A number of giant artificial networks...
Although individual neurons in the arm area of the primate motor cortex are only broadly tuned to a particular direction in three-dimensional space, the animal can very precisely control the movement of its arm. The direction of movement was found to...
Carrie Baker Brachmann, Adrian Davies, Gregory J. Cost, Emerita Caputo, Joachim Li, Philip Hieter, Jef D. Boeke
Dean K. McNeill
Spectral analysis of spontaneous heart rate fluctuations were assessed by use of autonomic blocking agents and changes in posture. Low-frequency fluctuations (below 0.12 Hz) in the supine position are mediated entirely by the parasympathetic...
Roger Tourangeau, Lance J. Rips, Kenneth A. Rasinski
Edward R. Long, Donald D. MacDonald, Sherri L. Smith, Fred D. Calder
Giuseppe Da Prato
G.D. Palermo, H. Joris, P. Devroey, A. Van Steirteghem
SUMMARY Over the last three years, a major international effort has been made by the Sub-Commission on Earthquake Algorithms of the International Association of Seismology and the Physics of the Earth's Interior (IASPEI) to generate new global traveltime...
Note on Exchange Phenomena in the Thomas Atom
D. M. Moore, R. C. Reynolds
Mike Uschold, Michael Gruninger
Christopher J. Cramer
John H. Holland
Robert D. Putnam
Gunther Kress, Theo van Leeuwen
This paper describes a methodology for calibration and uncertainty estimation of distributed models based on generalized likelihood measures. The GLUE procedure works with multiple sets of parameter values and allows that, within the limitations of a...
William B. Gartner
Theory is developed to explain the carbon isotopic composition of plants. It is shown how diffusion of gaseous COz can significantly affect carbon isotopic discrimination. The effects on discrimination by diffusion and carboxylation are integrated, yielding...
Winfried Alberti, G Anderson, A Bartolucci, D Bell, Jb Villalba, Ola Brodin
David J.A. Jenkins, Thomas M. S. Wolever, Taylor Rh, Barker Hm, Fielden H, J M Baldwin, Alison C Bowling, H. Newman, Alexandra L. Jenkins, D V Goff
Hugh A. Edmondson, Paul E. Steiner
Alberto Mantovani, Antonio Sica, Silvano Sozzani, Paola Allavena, Annunciata Vecchi, Massimo Locati
Transfer of training is of paramount concern for training researchers and practitioners. Despite research efforts, there is a growing concern over the “transfer problem.” The purpose of this paper is to provide a critique of the existing transfer...
Pamela S Tolbert, Andrew Abbott
Pfeffer Ma, Eugene Braunwald
Microglial cells represent the immune system of the mammalian brain and therefore are critically involved in various injuries and diseases. Little is known about their role in the healthy brain and their immediate reaction to brain damage. By using in...
Sandy J. Wayne, Lynn M. Shore, Robert C. Liden
Atsuyuki Okabe, Barry Boots, Kokichi Sugihara
SUMMARY 1.Adetailed theory ofcerebellar cortex isproposed whoseconsequence isthatthecerebellum learns toperform motorskills. Twoformsofinputoutput relation aredescribed, bothconsistent withthecortical theory. One issuitable forlearning movements (actions),...
Luna B. Leopold, M. Gordon Wolman, John P. Miller
David Spiegelhalter, John A. Campbell
Recently, increasing attention has been paid to the question of how to build stable, long-term relationships between manufacturers and members of conventional channels. This descriptive field study concerns a basic requirement for building long-term relationships,...
F. B. M. de (Frans B. M.) Waal
Winfred F. Hill, N. J. Mackintosh
This chapter focuses on interleukin-8 (IL-8) and related chemotactic cytokines—namely, CXC and CC chemokines. IL-8 is the best known member of a new class of cytokines that are widely studied because of their ability to attract and activate leukocytes,...
P. L. Roeder, Ronald F. Emslie
Heinz Eulau, Morris P. Fiorina
This paper examines electronic mail in organizational communication. Based on ideas about how social context cues within a communication setting affect information exchange, it argues that electronic mail does not simply speed up the exchange of information...
Ben Y. Zhao, John Kubiatowicz, Anthony D. Joseph
Prostanoids are the cyclooxygenase metabolites of arachidonic acid and include prostaglandin (PG) D2, PGE2, PGF2α, PGI2, and thromboxne A2. They are synthesized and released upon cell stimulation and act on cells in the vicinity of their synthesis to...
Metal nanoshells are a class of nanoparticles with tunable optical resonances. In this article, an application of this technology to thermal ablative therapy for cancer is described. By tuning the nanoshells to strongly absorb light in the near infrared,...
In this paper we explore a new theory of discourse structure that stresses the role of purpose and processing in discourse. In this theory, discourse structure is composed of three separate but interrelated components: the structure of the sequence of...
D. M. Weir
Stefan Saroiu, P. Krishna Gummadi, Steven D. Gribble
Iqbal, Muhammad, Ph. D.
Cachectin (tumor necrosis factor), a protein produced in large quantities by endotoxin-activated macrophages, has been implicated as an important mediator of the lethal effect of endotoxin. Recombinant human cachectin was infused into rats in an effort...
O. Dolomanov, Luc J. Bourhis, Richard J. Gildea, Judith A. K. Howard, Horst Puschmann
Viswanath Venkatesh, Fred D. Davis
The relation of minor and major axes of the left ventricle was determined in 100 left ventriculograms performed in the right anterior oblique projection. This relation taken over a wide range of volumes was used to derive a theoretically correct equation...
James R. Holton
Peter J. Huber
Parent and alkyl PAHs (51 compounds and alkyl homologues) have been quantified in suspended particulates and sediments (345 samples) from the Fraser River system, British Columbia, Canada. The best potential to distinguish natural and anthropogenic sources...
Pervez Ghauri, Kjell Grønhaug
Zoltán Kövecses, Réka Benczes
A simple analytic model is constructed to elucidate some basic features of the response of the tropical atmosphere to diabatic heating. In particular, there is considerable east-west asymmetry which can be illustrated by solutions for heating concentrated...
Kenneth H. Rubin, William M. Bukowski
Franklin R. Cockerill, Clinical
Albert Zlatkis, A. J. Boyle
Western United States forest wildfire activity is widely thought to have increased in recent decades, yet neither the extent of recent changes nor the degree to which climate may be driving regional changes in wildfire has been systematically documented....
Anthony V. Fiacco, Garth P. McCormick
Roberta Sessoli, Dante Gatteschi, Andrea Caneschi, Miguel A. Novak
A nanoimprint process that presses a mold into a thin thermoplastic polymer film on a substrate to create vias and trenches with a minimum size of 25 nm and a depth of 100 nm in the polymer has been demonstrated. Furthermore, the imprint process has been...
Chronic obstructive pulmonary disease (COPD) is characterized by the progressive development of airflow limitation that is not fully reversible.1 The term COPD encompasses chronic obstructive bronchitis, with obstruction of small airways, and emphysema,...
Robert C. Merton is John and Natty McArthur University Professor at Harvard Business School. He shared the Nobel Prize in Economic Sciences in 1997. He introduced Ito calculus to finance and economics and made significant contributions in asset pricing,...
Ann Goetting, Murray A. Straus, Richard J. Gelles
This paper presents a selective review of some of IBM's major contributions in the area of phase transitions during the last twenty-five years. It is separated into three main sections covering ferroelectric and structural transitions, magnetism, and...
Robert M. Garrels