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Article
Open AccessDiet changes due to urbanization in South Africa are linked to microbiome and metabolome signatures of Westernization and colorectal cancer
Transition from traditional high-fiber to Western diets in urbanizing communities of Sub-Saharan Africa is associated with increased risk of non-communicable diseases (NCD), exemplified by colorectal cancer (C...
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Article
Open AccessThe Isothermal Oxidation of a New Polycrystalline Turbine Disk Ni-Based Superalloy at 800 °C and Its Modification with Pre-oxidation
Ni-based superalloys with enhanced oxidation resistance at high temperatures are crucial for next-generation gas turbine engines. A new polycrystalline Ni-based superalloy (C19) that combines improved microstr...
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Chapter and Conference Paper
Develo** Alloy Compositions for Future High Temperature Disk Rotors
Two new alloy compositions for possible disk rotor applications have been examined. Both were intended to have higher \( \gamma ^{{\prime }} \) γ ′ content than the existing alloy, RR1000, and be produce...
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Article
Open AccessComparison of Methods for Quantification of Topologically Close-Packed Phases in Ni-Based Superalloys
The ability to quantify accurately the formation of topologically close-packed phases in nickel-based superalloys is key to assessing their thermal stability and ensuring that their performances will not deter...
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Article
Fourier-transform Raman spectroscopic study of a Neolithic waterlogged wood assemblage
The use of Fourier-transform Raman spectroscopy for characterising lignocellulosics has increased significantly over the last twenty years. Here, an FT-Raman spectroscopic study of changes in the chemistry of ...
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Chapter
Statistical Connections Among Water Vapor Megamasers
We review correlations between water megamaser emission and other properties of AGN. Galaxies detected as water megamaser emitters tend to be nearer, brighter at mid-infrared and possibly centimeter wavelength...
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Article
Comparison of ZEUS data with standard model predictions for e+p → e+X scattering at high x and Q2
Using the ZEUS detector at HERA, we have studied the reaction e+p → e+ X for Q2 > 5000 GeV2 with a 20.1 pb−1 data sample collected during the years 1994 to 1996. For Q2 below 15000 GeV2, the data ...
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Article
Bi-Dimensional Spectrography at HST-Like Spatial Resolution: [OIII] Kinematics and Ionization in the NLR of NGC 1068
We present a study at HST-like spatial resolution of the gas kinematics in the innermost part of NGC 1068. This work is based on observations with the integral field spectrograph TIGER mounted on the CFH Teles...
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Article
The X-ray Emission of NGC 1068
This paper summarises the X-ray properties of NGC 1068 from the observers perspective and reports new observations with the ROSAT HRI. Below ≃ 2 keV, the spectrum is steep and probably represents thermal emiss...
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Chapter and Conference Paper
Cygnus A: Host Galaxy of a Nearby Quasar?
According to the unification scheme of FRII radio galaxies and radio loud quasars Cygnus A should harbour a hidden quasar in its nucleus. Cygnus A presents observational features, such as a bright Extended Nar...
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Article
Measurement of theF 2 structure function in deep inelastice + p scattering using 1994 data from the ZEUS detector at HERA
We present measurements of the structure functionF 2 ine + p scattering at HERA in the range 3.5 GeV2<Q 2<5000 GeV2. A new reconstruction method has...
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Article
Study of charged—currentep interactions atQ 2>200 GeV2 with the ZEUS detector at HERA
Deep inelastic charged-current reactions have been studied ine + p ande − p collisions at a center of mass energy of about 300GeV in the kinematic r...
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Article
Inclusive charged particle distributions in deep inelastic scattering events at HERA
A measurement of inclusive charged particle distributions in deep inelasticep scattering forγ*p centre-of-mass energies 75<W<175 GeV and momentum transfer squared 10<Q 2<160 GeV2 from the ...
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Chapter and Conference Paper
Circumnuclear Disks in Radio-Quiet Active Galaxies
In this paper, I review some of the evidence for gaseous circumnuclear disks in radio-quiet active galaxies (Seyfert galaxies and LINER’s). Results from observations of Fe Kα lines, H2O megamasers, extended struc...
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Chapter and Conference Paper
Matter-Bounded Photoionized Clouds
The extended ionized gas in Seyfert and Radio-Galaxies is characterized by large values of the ratio HeII/Hβ, which exceeds the value predicted by the standard photoionization model in which the ionizing continuu...
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Article
Measurement of elasticρ 0 photoproduction at HERA
Elasticρ 0 photoproduction has been measured using the ZEUS detector at HERA. Untagged photoproduction events fromep interactions were used to measure the reactionγp→ρ 0 ...
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Article
Measurement of the diffractive structure function in deep inelastic scattering at HERA
This paper presents an analysis of the inclusive properties of diffractive deep inelastic scattering events produced inep interactions at HERA. The events are characterised by a rapidity gap between the outgoing ...
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Article
Measurement of the proton structure functionF 2 at lowx and lowQ 2 at HERA
We report on a measurement of the proton structure functionF 2 in the range 3.5×10−5≤x≤4×10−3 and 1.5 GeV2≤Q 2≤15GeV2 at theep collider HERA operating at a centre-of-mass energy of...
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Article
A search for excited fermions in electron-proton collisions at HERA
A search for excited states of the standard model fermions was performed using the ZEUS detector at the HERA electron-proton collider, operating at a centre of mass energy of 296 GeV. In a sample corresponding...
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Article
Measurement of the proton structure functionF 2 from the 1993 HERA data
The ZEUS detector has been used to measure the proton structure functionF 2. During 1993 HERA collided 26.7 GeV electrons on 820 GeV protons. The data sample corresponds to an integrated luminosity of 0.54 pb−1, ...
