Christopher Stevens

ORCID: 0000-0003-3178-3290
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About
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Research Areas
  • Global trade and economics
  • Combustion and Detonation Processes
  • International Development and Aid
  • Fire dynamics and safety research
  • Human-Automation Interaction and Safety
  • Historical and Contemporary Political Dynamics
  • Risk and Safety Analysis
  • European Union Policy and Governance
  • Global Peace and Security Dynamics
  • Food Security and Health in Diverse Populations
  • Agricultural Innovations and Practices
  • EU Law and Policy Analysis
  • Agricultural Economics and Policy
  • Energetic Materials and Combustion
  • World Trade Organization Law
  • Cognitive Science and Mapping
  • Agricultural risk and resilience
  • Combustion and flame dynamics
  • Russia and Soviet political economy
  • Heat transfer and supercritical fluids
  • Global Financial Crisis and Policies
  • Poverty, Education, and Child Welfare
  • Regional Development and Policy
  • Mechanical Behavior of Composites
  • Agriculture and Rural Development Research

Elisabeth-TweeSteden Ziekenhuis
2025

Australian Centre for Robotic Vision
2025

The University of Sydney
2025

Louisiana State University Health Sciences Center Shreveport
2024

Wright-Patterson Air Force Base
2018-2024

King's College London
1989-2024

Eagle Mount
2024

United States Air Force Research Laboratory
2009-2023

Southern Cross University
2023

Innovative Scientific Solutions (United States)
2011-2021

A high-quality sequence assembly of the zebrafish genome reveals largest gene set any vertebrate and provides information on key genomic features, comparison to human reference shows that approximately 70% protein-coding genes have at least one clear orthologue. The — a model organism for study development disease has now been sequenced published as well-annotated genome. Zebrafish turns out so far sequenced, few pseudogenes. Importantly studies, between sequences obvious second paper...

10.1038/nature12111 article EN cc-by-nc-sa Nature 2013-04-16

Recent accomplishments related to the performance, application, and analysis of rotating detonation engine technologies are discussed. The pioneering development optically accessible engines coupled with application established diagnostic techniques is enabling a new research direction. In particular, chemiluminescence images detonations propagating through annular channel reported appear remarkably similar computational fluid dynamic results published in literature. Specific impulse...

10.2514/1.b36303 article EN Journal of Propulsion and Power 2016-11-24

Journal Article The Political Economy of Botswana: A Study Growth and Distribution Get access Distribution, by Christopher Colclough Stephen McCarthy. Oxford University Press, 1980. xx+298pp. £12.50. CHRISTOPHER STEVENS Overseas Development InstituteLondon Search for other works this author on: Academic Google Scholar African Affairs, Volume 80, Issue 319, April 1981, Pages 303–304, https://doi.org/10.1093/oxfordjournals.afraf.a097321 Published: 01 1981

10.1093/oxfordjournals.afraf.a097321 article EN African Affairs 1981-04-01

Abstract Objectives/Hypothesis Auditory neuropathy is a relatively recently described pattern of hearing loss characterized by preservation outer hair cell function despite absent brainstem auditory evoked responses. Intact demonstrated the presence otoacoustic emissions and/or measurable cochlear microphonic on electrocochleography, whereas no synchronous neural activity (absent action potentials) seen acoustically response testing. The study reviews authors' experience with six patients...

10.1097/00005537-200301000-00009 article EN The Laryngoscope 2003-01-01

Journal Article Food Policy: The Responsibility of the United States in Life and Death Choices Get access Choices. Edited by Peter G. Brown Henry Shue. New York: Free Press. 1977. London: Collier Macmillan. 1978. 344 pp. $14.95. £11.25. Christopher Stevens 1Overseas Development Institute, London Search for other works this author on: Oxford Academic Google Scholar International Affairs, Volume 55, Issue 1, January 1979, Page 115, https://doi.org/10.2307/2617159 Published: 01 1979

10.2307/2617159 article EN International Affairs 1979-01-01

The majority of human intestinal intraepithelial lymphocytes (iIELs) are CD8+ T cells that use the cell receptor (TCR)-alpha/beta. Previous studies have shown iIELs isolated from segments small intestine or colon contain one several dominant alpha/beta clones. It is not known whether these clones expand only locally in response to a particular antigen they widely distributed throughout intestine. To address this question, were purified near proximal and distal margins series resections for...

10.1084/jem.180.4.1337 article EN The Journal of Experimental Medicine 1994-10-01

Sub-Saharan African (SSA) is negotiating a new trade regime with the European Union (EU), under threat of increased barriers against its exports if agreement not reached before 2008. This article examines potential impact on regional integration Economic Partnership Agreements (EPAs) being negotiated. Both sides pay lip service to greater integration, which stated objective EPAs. But provides research evidence suggesting that EPAs will weaken regionalism, and in so doing adds literature what...

10.1017/s0022278x06001844 article EN The Journal of Modern African Studies 2006-08-03

We compared the elastase and lysozyme activities of cells obtained by bronchoalveolar lavage from normal smokers nonsmokers. After total differential cell counts were for initial population, we determined enzyme culture vessel's adherent alveolar macrophage fraction, supernatant medium. Our data indicated that macrophages, particularly smokers, synthesized a calcium-dependent activity against synthetic substrate, succinyl-trialanine-p-nitroanilide. This was enhanced in distinct...

10.1164/arrd.1980.121.2.263 article EN PubMed 1980-02-01

During the testing of a Rotating Detonation Engine coupled with an ejector, pressure measurements indicated deficiency in understanding probes. The histories came from array Infinite Tube Pressure (ITP) static probes, Capillary Average (CTAP) and direct Kiel stagnation Upon examination histories, average probe over several laps detonation, it was revealed that ITP pressures measured higher than both within mixing chamber at exit ejector. This research conducts unsteady calibration different...

10.2514/6.2015-1102 article EN 53rd AIAA Aerospace Sciences Meeting 2015-01-03

Abstract Purpose The use of intramedullary fixation AO type 31-A1 fractures is rising, despite evidence non-superiority when compared with extramedullary fixation. aim this study was to evaluate mobility and living status for (EMF) versus (IMF) in Dutch hospitals during the initial hospital stay until three-months after trauma. Methods Data on patient characteristics, mobility, status, complications, reoperation, mortality were extracted from Hip Fracture Audit Indicator Taskforce. collected...

10.1007/s00068-024-02749-8 article EN cc-by European Journal of Trauma and Emergency Surgery 2025-01-10

ABSTRACT This paper introduces the R‐ECPS (Robotics‐focused Eco‐Cyber‐Physical System) framework for development of robotics‐enabled digital twins, integrating human knowledge into decision‐making process. Our adapts ECPS and Digital Twin (DT) definitions to agricultural field robotics. We illustrate its application by envisioning an autonomous twin smart livestock management. The presented preliminary implementation includes a testbed, environmental parameter mapping algorithm, foraging...

10.1002/rob.22562 article EN cc-by Journal of Field Robotics 2025-04-21

10.1007/bf00637377 article EN European Journal of Applied Physiology and Occupational Physiology 1989-01-01

Journal Article THE SOVIET UNION AND ANGOLA Get access CHRISTOPHER STEVENS This article is substantially the same as a paper presented to African politics seminar at Institute of Commonwealth Studies, London University, on 3 March 1974. The writer presently research officer Overseas Development Institute, and his book. Soviet Union Black Africa, will shortly be published by Maonillan. Search for other works this author on: Oxford Academic Google Scholar Affairs, Volume 75, Issue 299, April...

10.1093/oxfordjournals.afraf.a096706 article EN African Affairs 1976-04-01

After the collapse of Soviet Union, Kazakhstan was faced with domestic conditions that made cooperation Russia rational. inherited a large ethnic Russian population and severe economic depression. These affected other countries emerging from but only Belarus matched Kazakhstan's level strategic Russia. President Nursultan Nazarbaev's dominance national security agenda offers partial explanation for cooperation, we still need to ask what makes him different leaders post-Soviet same...

10.1080/09668136.2020.1719979 article EN Europe Asia Studies 2020-02-13

Abstract : A fluidic obstacle has been proposed as an alternative to conventional deflagration-to-detonation transition (DDT) enhancement devices for use in a Pulsed Detonation Engine (PDE). Experimental results have obtained utilizing unsteady reacting and steady non-reacting flow gain insight on the relative performance of obstacle. Using stoichiometric premixed hydrogen-air, detonation achieved using solely with comparable DDT distances that physical orifice plate. Flame acceleration is...

10.2514/6.2011-587 article EN 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2011-01-04

T-cell receptors (TCR) have considerable potential as therapeutics and antibody-like reagents to monitor disease progression vaccine efficacy. Whereas antibodies recognize only secreted surface-bound proteins, TCRs otherwise inaccessible disease-associated intracellular proteins when they are presented processed peptides bound major histocompatibility complexes (pMHC). been primarily explored for cancer therapy applications but could also target infectious diseases such cytomegalovirus...

10.1074/jbc.ra118.007187 article EN cc-by Journal of Biological Chemistry 2019-02-22
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