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Search Results: 1 - 10 of 235858 matches for " William R. Butterworth "
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The Technology of Waste, Biofuels and Global Warming in Viable Closed Loop, Sustainable Operations
William R. Butterworth
Energies , 2009, DOI: 10.3390/en20401192
Abstract: This research set out to explore and develop a route relating the recycling of urban and industrial wastes to land to produce agricultural crops with energy crops in the rotation, using the green leaf to “harvest” sunlight and to examine the sequestration of carbon dioxide and release of oxygen in a sustainable closed loop. Further, to establish if the pollution, particularly of nitrogen and phosphates (often associated with cultivations and use of mineral fertilisers) could be reduced or eliminated, so as to be able to develop systems which could contribute to the reversal of global warming. Finally, to probe whether practical operators on the ground could understand the technology, use it, and express what they were doing in a way acceptable to a wider society.
Mycobacterium chimaera Associated Haemophagocytic Lymphohistiocytosis  [PDF]
Joseph Butterworth
Open Journal of Blood Diseases (OJBD) , 2016, DOI: 10.4236/ojbd.2016.64008
Abstract: Haemophagocytic lymphohistiocytosis (HLH) is a potentially fatal condition in which abnormal activation of the immune system results in haemophagocytosis, inflammation and tissue damage. This results in a variety of signs and symptoms but most commonly fever, lymphadenopathy, splenomegaly, cytopenias, hyperferritinaemia and hypertriglyceridaemia. There are multiple reports of acquired HLH developing on a background of disseminated Mycobacterium infection. Simultaneously, since 2011, cases of invasive cardiovascular infection caused by Mycobacterium chimaera (M. chimaera) in patients having previously undergone cardiac surgery in Europe have been reported. We report a case of acquired HLH occurring one year after open-heart surgery to place a prosthetic valve due to M. chimaera.
High p_T Charm Photoproduction
G. Abbiendi,J. M. Butterworth,R. Graciani
Physics , 1996,
Abstract: The expected rates for charm-tagged jet photoproduction are evaluated for a number of tagging procedures, and some of the physics potential is discussed. Charm in jets is tagged using $D^*$'s, $\mu$'s, or tracks from secondary vertices which might be identified in a microvertex detector. We find high expected event rates, leading to the possibility of placing strong constraints on the kinematics of charm production and on the gluon content of the proton and the charm content of the photon.
A Global Study of Photon-Induced Jet Production
J. M. Butterworth,R. J. Taylor
Physics , 1999, DOI: 10.1016/S0920-5632(00)00140-7
Abstract: We present results of a global tuning of general purpose Monte Carlo models to published measurements of photon-proton -> jets at HERA and photon-photon -> jets at LEP and TRISTAN. The principle free parameters in the tuning are the simulation of the underlying event and the choice of photon structure. Several combinations of models are ruled out by the data. Some consequences of the tuned models at a future linear collider are discussed.
Reconstructing Sparticle Mass Spectra using Hadronic Decays
Butterworth, J. M.;Ellis, J. R.;Raklev, A. R.
High Energy Physics - Phenomenology , 2007, DOI: 10.1088/1126-6708/2007/05/033
Abstract: Most sparticle decay cascades envisaged at the Large Hadron Collider (LHC) involve hadronic decays of intermediate particles. We use state-of-the art techniques based on the \kt jet algorithm to reconstruct the resulting hadronic final states for simulated LHC events in a number of benchmark supersymmetric scenarios. In particular, we show that a general method of selecting preferentially boosted massive particles such as W, Z or Higgs bosons decaying to jets, using sub-jets found by the \kt algorithm, suppresses QCD backgrounds and thereby enhances the observability of signals that would otherwise be indistinct. Consequently, measurements of the supersymmetric mass spectrum at the per-cent level can be obtained from cascades including the hadronic decays of such massive intermediate bosons.
Occupational Wages and Globalization  [PDF]
William R. DiPietro
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.32023
Abstract: Using a country’s trade share as a measure of globalization, this paper employs cross country regression analysis on 161 occupations for the year 2000 to assess whether globalization has a negative effect on occupational wages. The results are consistent with the notion that greater integration of national economies with the rest of the world adversely affects occupational wages in many occupations within countries.
Multiparton Interactions in Photoproduction at HERA
J. M. Butterworth,J. R. Forshaw,M. H. Seymour
Physics , 1996, DOI: 10.1007/s002880050286
Abstract: The high energy photoproduction of jets is being observed at the ep collider, HERA. It may be that the HERA centre-of-mass energy is sufficiently large that the production of more than one pair of jets per ep collision becomes possible, owing to the large number density of the probed gluons. We construct a Monte Carlo model of such multiparton interactions and study their effects on a wide range of physical observables. The conclusion is that multiple interactions could have very significant effects upon the photoproduction final state and that this would for example make extractions of the gluon density in the photon rather difficult. Total rates for the production of many (i.e. > 2) jets could provide direct evidence for the presence of multiple interactions, although parton showering and hadronization significantly affect low transverse energy jets.
WW scattering at the LHC
J. M. Butterworth,B. E. Cox,J. R. Forshaw
Physics , 2002, DOI: 10.1103/PhysRevD.65.096014
Abstract: A detailed study is presented of elastic WW scattering in the scenario that there are no new particles discovered prior to the commissioning of the LHC. We work within the framework of the electroweak chiral lagrangian and two different unitarisation protocols are investigated. Signals and backgrounds are simulated to the final-state-particle level. A new technique for identifying the hadronically decaying W is developed, which is more generally applicable to massive particles which decay to jets where the separation of the jets is small. The effect of different assumptions about the underlying event is also studied. We conclude that the channel WW -> jj+l+nu may contain scalar and/or vector resonances which could be measurable after 100 fb^(-1) of LHC data.
Temperature Dependence of the UCN Loss Rate
S. Arzumanov,J. Butterworth,R. Golub,P. Geltenbort,E. Korobkina
Physics , 2002,
Abstract: We report about the first results obtained with our Ultra High Vacuum cryostat recently commissioned at HMI to study Ultra Cold Neutrons(UCN) loss rate under low temperatures(down to 4K) and well controlled sample environment. Our analysis of the temperature dependence of UCN loss rate on Cu surface allowed us to rule out the subbarier model in support of the 1/v model and propose a reasonable explanation of the low temperature upscattering.
Unemployment Benefits and Unemployment  [PDF]
William Beranek, David R. Kamerschen
Modern Economy (ME) , 2011, DOI: 10.4236/me.2011.25088
Abstract: This paper seeks to provide a simpler explanation of the Match Quality Hypothesis (MQH). For the less mathematically inclined, it avoids formal analysis and yet derives the relevant implications, i.e., if unemployed workers currently collecting unemployment benefits are given more benefits, both the average period of unemployment duration increases as well as the level of unemployment. To produce these effects, only one person behaving in this manner is required. We cite recent evidence supporting these implications. Examined are implications of this theorem for both U.S. and European regions where, in some cases, voluntarily unemployed workers are eligible for unemployment benefits. We question the importance of the notion that generous unemployment benefits that intensify searches for better jobs, and hence prolonged job searches, ultimately yield societal benefits.
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