Stephen Hill

On the anisotropy barrier reduction in fast relaxing Mn12 single-molecule magnets (2009)

Hill, Stephen, Murugesu, Muralee, Christou, George

A novel angle-swept high-frequency EPR (HFEPR) technique is described that enables in-situ alignment of single-crystal samples containing low-symmetry magnetic species such as single-molecule magnets...

Reply to Wernsdorfer's post: "Correspondence on: Quantum interference of tunnel trajectories between states of different spin lenght in a dimeric molecular nanomagnet" (2008)

Ramsey, Christopher M., Del Barco, Enrique, Hill, Stephen, Shah, Sonali J., Beedle, Christopher C., Hendrickson, David N.

We present here an exact version of our response (dated April 27) to Wernsdorfer's correspondence submitted to Nature Physics on March 31, 2008. After consultation with a referee, Nature Physics...

Easy with Eve: A Functional Affective Tutoring System (2008)

Samuel Alex, Abdolhossein Sarrafzadeh, Stephen Hill

Abstract. This paper presents research leading to the development of Easy with Eve, an Affective Tutoring System (ATS) in the domain of primary school mathematics. The system adapts to students via a...

Strongly Correlated Electrons in the $[Ni(hmp)(ROH)X]_4$ Single Molecule Magnet: A DFT+U Study (2008)

Cao, Chao, Hill, Stephen, Cheng, Hai-Ping

The single-molecule magnet $\mathrm{[Ni(hmp)(MeOH)Cl]_4}$ is studied using both density functional theory (DFT) and the DFT+U method, and the results are compared. By incorporating a Hubbard-U like...

Fiber-optical analogue of the event horizon (2007)

Philbin, Thomas G., Kuklewicz, Chris, Robertson, Scott, Hill, Stephen, Konig, Friedrich, Leonhardt, Ulf

The physics at the event horizon resembles the behavior of waves in moving media. Horizons are formed where the local speed of the medium exceeds the wave velocity. We use ultrashort pulses in...

Fiber-optical analogue of the event horizon: Appendices (2007)

Philbin, Thomas G., Kuklewicz, Chris, Robertson, Scott, Hill, Stephen, Konig, Friedrich, Leonhardt, Ulf

We explain the theory behind our fiber-optical analogue of the event horizon and present the experiment in detail.

Ecological stability and complexity: Is it necessarily catastrophic? (2007)

Stephen Hill, Pl Aa, Darrel Jenerette

It has been shown that many ecological systems exhibit a degree of stability and complexity which is above that predicted by current theoretical models. The early works of Gardner & Ashby and May...

Microwave spectroscopy of Q1D and Q2D organic conductors (2006)

Hill, Stephen, Takahashi, Susumu

This chapter reviews recent experimental studies of a novel open-orbit magnetic resonance phenomenon. The technique involves measurement of angle-dependent microwave magneto-conductivity and is,...

Cultura organizativa de investigadores y entorno político y social (2006)

Bellavista, Joan, Turpin, Tim, Hill, Stephen, Miguel, Jesús M. De

La organización de la investigación se transforma de forma rápida y profunda en la mayoría de países. Las fronteras tradicionales de la ciencia se cuestionan por la influencia de la industria y...

A rotating cavity for high-field angle-dependent microwave spectroscopy of low-dimensional conductors and magnets (2005)

Takahashi, Susumu, Hill, Stephen

The cavity perturbation technique is an extremely powerful method for measuring the electrodynamic response of a material in the millimeter- and sub-millimeter spectral range (10 GHz to 1 THz),...

Single-Molecule Magnets: High-Field Electron Paramagnetic Resonance Evaluation of the Single-Ion Zero-Field Interaction in a Zn3Ni Complex (2005)

Yang, En-Che, Kirman, Cem, Lawrence, Jon, Zakharov, Lev N., Rheingold, Arnold L., Hill, Stephen, ...

High-field electron paramagnetic resonance (HFEPR) spectra were collected at several frequencies for single crystal [Zn3.91Ni0.09(hmp)4(dmb)4Cl4] (1), where dmb is 3,3-dimethyl-1-butanol and hmp is...

Electrodynamics of quasi-two-dimensional BEDT-TTF charge transfer salts (2000)

Hill, Stephen

We consider the millimeter-wave electrodynamics specific to quasi-two-dimensional conductors and superconductors based on the organic donor molecule BEDT-TTF. Using realistic physical parameters, we...

Meta-stability of interacting adaptive agents. (1999)

Hill, Stephen.

Thesis (Ph. D.)--University of Plymouth, 1999.

Cultura organizativa de investigadores y entorno político y social (1998)

Hill, Stephen, Turpin, Tim, Bellavista Illa, Joan

La organización de la investigación se transforma de forma rápida y profunda en la mayoría de países. Las fronteras tradicionales de la ciencia se cuestionan por la influencia de la industria y...

Cultura organizativa de investigadores y entorno político y social (1998)

Hill, Stephen, Turpin, Tim, Bellavista Illa, Joan

La organización de la investigación se transforma de forma rápida y profunda en la mayoría de países. Las fronteras tradicionales de la ciencia se cuestionan por la influencia de la industria y...

Recursive Mappings and the Complexity Catastrophes (1997)

Stephen Hill, Pl Aa

Recursive mappings such as Lindenmeyer systems have been proposed as a model of some aspects of the morphogenic process. In this paper one such mapping, the M-system, is introduced and compared with...

In Search of TQM (1995)

Hill, Stephen, Wilkinson, Adrian John

While quality management practices have spread in recent years, academic investigation of the phenomenon has lagged behind. Discusses what TQM comprises and whether there are partial or contingent...

In Search of TQM (1995)

Hill, Stephen, Wilkinson, Adrian John

While quality management practices have spread in recent years, academic investigation of the phenomenon has lagged behind. Discusses what TQM comprises and whether there are partial or contingent...

In Search of TQM (1995)

Hill, Stephen, Wilkinson, Adrian John

While quality management practices have spread in recent years, academic investigation of the phenomenon has lagged behind. Discusses what TQM comprises and whether there are partial or contingent...

In Search of TQM (1995)

Hill, Stephen, Wilkinson, Adrian John

While quality management practices have spread in recent years, academic investigation of the phenomenon has lagged behind. Discusses what TQM comprises and whether there are partial or contingent...

A Virulence and Antimicrobial Resistance DNA Microarray Detects a High Frequency of Virulence Genes in Escherichia coli Isolates from Great Lakes Recreational Waters

Hamelin, Katia, Bruant, Guillaume, El-Shaarawi, Abdel, Hill, Stephen, Edge, Thomas A., Bekal, Sadjia, ...

Escherichia coli is generally described as a commensal species with occasional pathogenic strains. Due to technological limitations, there is currently little information concerning the prevalence of...

A Virulence and Antimicrobial Resistance DNA Microarray Detects a High Frequency of Virulence Genes in Escherichia coli Isolates from Great Lakes Recreational Waters

Hamelin, Katia, Bruant, Guillaume, El-Shaarawi, Abdel, Hill, Stephen, Edge, Thomas A., Bekal, Sadjia, ...

Escherichia coli is generally described as a commensal species with occasional pathogenic strains. Due to technological limitations, there is currently little information concerning the prevalence of...

Occurrence of Virulence and Antimicrobial Resistance Genes in Escherichia coli Isolates from Different Aquatic Ecosystems within the St. Clair River and Detroit River Areas▿

Hamelin, Katia, Bruant, Guillaume, El-Shaarawi, Abdel, Hill, Stephen, Edge, Thomas A., Fairbrother, John, ...

Although the number of Escherichia coli bacteria in surface waters can differ greatly between locations, relatively little is known about the distribution of E. coli pathotypes in surface waters used...

'High-performance' Management Practices, Working Hours and Work-Life Balance

Michael White, Stephen Hill, Patrick McGovern, Colin Mills, Deborah Smeaton

The effects of selected high-performance practices and working hours on work-life balance are analysed with data from national surveys of British employees in 1992 and 2000. Alongside long hours,...

The UK Regional Distribution of Foreign Direct Investment: Analysis and Determinants

Stephen Hill, Max Munday

HILL S. and MUNDAY M. (1992) The UK regional distribution of foreign direct investment: analysis and determinants, Reg. Studies 26, 535--544. This paper analyses the regional distribution of foreign...

Phylogenetic Diversity and Molecular Detection of Bacteria in Gull Feces▿

Lu, Jingrang, Santo Domingo, Jorge W., Lamendella, Regina, Edge, Thomas, Hill, Stephen

In spite of increasing public health concerns about the potential risks associated with swimming in waters contaminated with waterfowl feces, little is known about the composition of the gut...

Competition and Control at Work: A New Industrial Sociology

Stephen Hill

"The central problem facing modern business is the impossibility of abolishing the conditions which create conflicts in the workplace without destroying the present form of the economy." This is the...