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Segmenting by consumer time shortage

Investigates whether consumers′ time availability is an important segmentation variable in the convenience and fast‐food markets. Very time‐poor, somewhat time‐poor, and not time‐poor consumers are compared, and three types of food are examined:...

Growing public : social spending and economic growth since the eighteenth century

Growing public : social spending and economic growth since the eighteenth century

Negative results are disappearing from most disciplines and countries

Concerns that the growing competition for funding and citations might distort science are frequently discussed, but have not been verified directly. Of the hypothesized problems, perhaps the most worrying is a worsening of positive-outcome bias. A system...

The Determinants of Capital Structure Choice

This paper analyzes the explanatory power of some recent theories of optimal capital structure. The study extends empirical work on capital-structure theory in three ways. First, it examines a broader set of capital-structure theories, many of which have...

spatstat: An R Package for Analyzing Spatial Point Patterns

spatstat is a package for analyzing spatial point pattern data. Its functionality includes exploratory data analysis, model-fitting, and simulation. It is designed to handle realistic datasets, including inhomogeneous point patterns, spatial sampling...

Gender differences in managers' developmental job experiences

Patricia J. Ohlott, Marian N. Ruderman, Cynthia D. McCauley

Kinematic analysis of workpart fixturing for flexible assembly with automatically reconfigurable fixtures

The basic concept of an adaptable fixturing system and its hardware implementation are described. The system employs reconfigurable fixture elements that are used to locate and hold various workparts for assembly. The fixture configuration can be changed...

A gossip-style failure detection service

Failure Detection is valuable for system management, replication, load balancing, and other distributed services. To date, Failure Detection Services scale badly in the number of members that are being monitored. This paper describes a new protocol based...

Power distribution planning: a review of models and issues

Power distribution planning is a complex task in which planners must ensure that there is adequate substation capacity (transformer capacity) and feeder capacity (distribution capacity) to meet the load demands. Decisions such as allocation of power flow,...

Time evolution of the nanoparticle protein corona.

Eudald Casals, Tobias Pfaller, Albert Duschl, Gertie J. Oostingh, Victor Puntes

Condition Monitoring and Fault Diagnosis of Electrical Motors&#HASH#8212;A Review

Recently, research has picked up a fervent pace in the area of fault diagnosis of electrical machines. The manufacturers and users of these drives are now keen to include diagnostic features in the software to improve salability and reliability. Apart...

Programmed cell death and the control of cell survival: lessons from the nervous system

During the development of the vertebrate nervous system, up to 50 percent or more of many types of neurons normally die soon after they form synaptic connections with their target cells. This massive cell death is thought to reflect the failure of these...

Comparative Research in Education: a mode of governance or a historical journey?

This text is not a research paper, nor an epistemological reflection about the field of comparative education. It is an essay in the literal meaning of the word—‘an attempt, trial, that needs to be put to test in order to understand if it is able...

The Meaning and Consequences of Perceived Discrimination in Disadvantaged and Privileged Social Groups

The subjective meaning and consequences of perceived discrimination depend on the position of one’s group in the social structure. For members of disadvantaged groups, attributions to prejudice are likely to be internal, stable, uncontrollable, and...

L -diversity: Privacy beyond k -anonymity

Publishing data about individuals without revealing sensitive information about them is an important problem. In recent years, a new definition of privacy called k -anonymity has gained popularity. In a k -anonymized dataset, each record is indistinguishable...

Manganese Oxide Octahedral Molecular Sieves: Preparation, Characterization, and Applications

A thermally stable 3 x 3 octahedral molecular sieve corresponding to natural todorokite (OMS-1) has been synthesized by autoclaving layer-structure manganese oxides, which are prepared by reactions of MnO4- and Mn2+ under markedly alkaline conditions....

On the emergence of plate tectonics

At present, young oceanic lithosphere is positively buoyant, and it does not become negatively buoyant until it is older than about 20 m.y. If, in the past, the mantle was hotter, the oceanic crust would have been thicker and the lithosphere's age of...

Sunitinib Malate for the Treatment of Pancreatic Neuroendocrine Tumors

The multitargeted tyrosine kinase inhibitor sunitinib has shown activity against pancreatic neuroendocrine tumors in preclinical models and phase 1 and 2 trials.

A method of simulated moments for estimation of discrete response models without numerical integration

This paper proposes a simple modification of a conventional method of moments estimator for a discrete response model, replacing response probabilities that require numerical integration with estimators obtained by Monte Carlo simulation. This method...

Regionally Localized Thinning of the Cerebral Cortex in Schizophrenia

Background: Schizophrenia is characterized by small reductions in cortical gray matter volume, particularly in the temporal and prefrontal cortices. The question of whether cortical thickness is reduced in schizophrenia has not been addressed using magnetic...

Direct Near-Field Optical Imaging of Higher Order Plasmonic Resonances

We map in real space and by purely optical means near-field optical information of localized surface plasmon polariton (LSPP) resonances excited in nanoscopic particles. We demonstrate that careful polarization control enables apertureless scanning near-field...

The effect of surface grinding and sandblasting on flexural strength and reliability of Y-TZP zirconia ceramic

Objectives: This study was conducted to evaluate the effect of grinding and sandblasting on the microstructure, biaxial flexural strength and reliability of two yttria stabilized tetragonal zirconia (Y-TZP) ceramics. Methods: Two Y-TZP powders were used...

Preparation and characterization of polycrystalline anatase and rutile TiO 2 thin films by rf magnetron sputtering

Titanium dioxide films with the anatase and rutile single phase were formed on Si substrates by rf sputtering through a precise control of critical parameters. The structure of the films was studied by X-ray diffraction (XRD) and transmission electron...

Environmental management in tropical agriculture

Robert Goodland, C. Watson, George Ledec

Philosophy of Biology versus Philosophy of Physics

Not long ago I witnessed a remarkable interchange between two great thinkers: the cosmologist and physicist John Archibald Wheeler, and the philosopher of science Sir Karl Popper. Popper and Wheeler were meeting with a dozen other philosophers and scientists...

A critical perspective on action research as a method for information systems research

This paper reviews the origins, techniques and roles associated with action research into information systems (IS). Many consider the approach to be the paragon of post-positivist research methods, yet it has a cloudy history among the social sciences....

Inflammatory bowel disease: cause and immunobiology.

Crohn's disease and ulcerative colitis are idiopathic inflammatory bowel disorders. In this paper, we discuss how environmental factors (eg, geography, cigarette smoking, sanitation and hygiene), infectious microbes, ethnic origin, genetic susceptibility,...

Heuristics for cardinality constrained portfolio optimisation

In this paper we consider the problem of finding the efficient frontier associated with the standard mean–variance portfolio optimisation model. We extend the standard model to include cardinality constraints that limit a portfolio to have a specified...

From molecules to solids with the DMol3 approach

Recent extensions of the DMol 3 local orbital density functional method for band structure calculations of insulating and metallic solids are described. Furthermore the method for calculating semilocal pseudopotential matrix elements and basis functions...

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