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Spectral performance of SKA log-periodic antennas I
E De Lera Acedo, CM Trott, RB Wayth, N Fagnoni, G Bernardi, B Wakley, LVE Koopmans, AJ Faulkner, JG bij de Vaate
Sep 02, 2019
This paper is the first in a series of papers describing the impact of
antenna instrumental artefacts on the 21-cm cosmology experiments to be carried
out by the low frequency instrument (SKA1-LOW) of the Square Kilometre...
The extrudate swell singularity of Phan-Thien-Tanner and Giesekus fluids
The stress singularity for Phan-Thien-Tanner (PTT) and Giesekus viscoelastic fluids is determined for extrudate swell (commonly termed die swell). In the presence of a Newtonian solvent viscosity, the solvent stress dominates...
Mapping Discrete Galaxies at Cosmic Dawn with 21 cm Observations
At cosmic dawn, the 21-centimeter signal from intergalactic hydrogen was
driven by Lyman-$\alpha$ photons from some of the earliest stars, producing a
spatial pattern that reflected the distribution of galaxies at that time....
Hurricane disturbance accelerated the thermophilization of a Jamaican montane forest
Thermophilization – changes in community composition towards greater relative abundances of species associated with warmer environments – has been described for plants and animals in many locations around the world. Disturbances...
The extrudate swell singularity of Phan-Thien-Tanner and Giesekus fluids
The stress singularity for Phan-Thien-Tanner (PTT) and Giesekus viscoelastic fluids is determined for extrudate swell (commonly termed die swell). In the presence of a Newtonian solvent viscosity, the solvent stress dominates...
Direct Optimal Mapping for 21 cm Cosmology
Abstract
Motivated by the desire for wide-field images with well-defined statistical properties for 21 cm cosmology, we implement an optimal mapping pipeline that computes a...
Z Xu, JN Hewitt, KF Chen, H Kim, JS Dillon, NS Kern, MF Morales, BJ Hazelton, R Byrne, N Fagnoni, EDL Acedo, Z Abdurashidova, T Adams, JE Aguirre, P Alexander, ZS Ali, R Baartman, Y Balfour, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, P Bull, J Burba, S Carey, CL Carilli, C Cheng, DR DeBoer, M Dexter, N Eksteen, J Ely, A Ewall-Wice, R Fritz, SR Furlanetto, K Gale-Sides, B Glendenning, D Gorthi, B Greig, J Grobbelaar, Z Halday, J Hickish, DC Jacobs, A Julius, M Kariseb, J Kerrigan, P Kittiwisit, SA Kohn, M Kolopanis, A Lanman, PL Plante, A Liu, A Loots, YZ Ma, DH Edward MacMahon, L Malan, C Malgas, K Malgas, B Marero, ZE Martinot, A Mesinger, M Molewa, T Mosiane, SG Murray, AR Neben, B Nikolic, H Nuwegeld, AR Parsons, N Patra, S Pieterse, JC Pober, N Razavi-Ghods, J Robnett, K Rosie, P Sims, C Smith, H Swarts, N Thyagarajan, PVV Wyngaarden, PKG Williams, H Zheng
Oct 24, 2022
Constraining Baryon-Dark-Matter Scattering with the Cosmic Dawn 21-cm Signal.
The recent detection of an anomalously strong 21-cm signal of neutral hydrogen from cosmic dawn by the EDGES low-band radio experiment can be explained if cold dark matter particles scattered off the baryons draining excess...
Reforming of Soluble Biomass and Plastic Derived Waste Using a Bias-Free Cu<inf>30</inf>Pd<inf>70</inf>
Abstract: The production of clean fuels and chemicals from waste feedstocks is an appealing approach towards creating a circular economy. However, waste photoreforming commonly employs particulate photocatalysts, which display...
Winthrop Think College-Postsecondary Options for Students with Intellectual and Developmental Disabilities
Winthrop Think College is a postsecondary option for students with intellectual and developmental disabilities. Our goal is to prepare students for competitive employment and active participation in local communities. Session...
Published by: Winthrop University
Numerical study of the stress singularity in stick-slip flow of the Phan-Thien Tanner and Giesekus fluids
Stick-slip flow is a challenging viscoelastic benchmark problem due to the presence of a separation or transition point at the die exit where a sudden change in flow boundary conditions occurs. We present numerical...
21cmVAE
Considerable observational efforts are being dedicated to measuring the
sky-averaged (global) 21-cm signal of neutral hydrogen from Cosmic Dawn and the
Epoch of Reionization. Deriving observational constraints on the...
Numerical study of the stress singularity in stick-slip flow of the Phan-Thien Tanner and Giesekus fluids
Stick-slip flow is a challenging viscoelastic benchmark problem due to the presence of a separation or transition point at the die exit where a sudden change in flow boundary conditions occurs. We present numerical...
Effect of high blood lead levels on Serum calcium and phosphorus in patients exposed to lead
CM Bindu and Deepti Gupta
Jan 03, 2015
Lead (Pb2+) intoxication is a serious occupational disease that constitutes a major public health problem. In the present work we studied the effect of lead on calcium and phosphorus on two groups namely Cases and Control. Blood...
Published by: IJHS Medical Association
Effect of high blood lead levels on Serum calcium and phosphorus in patients exposed to lead
CM Bindu and Deepti Gupta
Jan 03, 2015
Lead (Pb2+) intoxication is a serious occupational disease that constitutes a major public health problem. In the present work we studied the effect of lead on calcium and phosphorus on two groups namely Cases and Control. Blood...
Published by: IJHS Medical Association
The prevalence of stunting, overweight and obesity, and metabolic disease risk in rural South African children.
Elizabeth W Kimani-Murage, Kathleen Kahn, John M Pettifor, Stephen M Tollman, David B Dunger, Xavier F Gómez-Olivé, Shane A Norris
Jun 16, 2011
BACKGROUND: Low- to middle-income countries are undergoing a health transition with non-communicable diseases contributing substantially to disease burden, despite persistence of undernutrition and infectious diseases. This...
Litter removal in a tropical rain forest reduces fine root biomass and production but litter addition has few effects.
Many old-growth lowland tropical rain forests are potentially nutrient limited, and it has long been thought that many such forests maintain growth by recycling nutrients from decomposing litter. We investigated this by...
Peering into the dark (ages) with low-frequency space interferometers
Léon V E Koopmans, Rennan Barkana, Mark Bentum, Gianni Bernardi, Albert-Jan Boonstra, Judd Bowman, Jack Burns, Xuelei Chen, Abhirup Datta, Heino Falcke, Anastasia Fialkov, Bharat Gehlot, Leonid Gurvits, Vibor Jelić, Marc Klein-Wolt, Joseph Lazio, Daan Meerburg, Garrelt Mellema, Florent Mertens, Andrei Mesinger, André Offringa, Jonathan Pritchard, Benoit Semelin, Ravi Subrahmanyan, Joseph Silk, Cathryn Trott, Harish Vedantham, Licia Verde, Saleem Zaroubi, Philippe Zarka
Oct 18, 2021
The Dark Ages and Cosmic Dawn are largely unexplored windows on the infant Universe (z ~ 200-10). Observations of the redshifted 21-cm line of neutral hydrogen can provide valuable new insight into fundamental physics and...
Published by: Experimental astronomy
Peering into the dark (ages) with low-frequency space interferometers
Léon VE Koopmans, Rennan Barkana, Mark Bentum, Gianni Bernardi, Albert-Jan Boonstra, Judd Bowman, Jack Burns, Xuelei Chen, Abhirup Datta, Heino Falcke, Anastasia Fialkov, Bharat Gehlot, Leonid Gurvits, Vibor Jelić, Marc Klein-Wolt, Joseph Lazio, Daan Meerburg, Garrelt Mellema, Florent Mertens, Andrei Mesinger, André Offringa, Jonathan Pritchard, Benoit Semelin, Ravi Subrahmanyan, Joseph Silk, Cathryn Trott, Harish Vedantham, Licia Verde, Saleem Zaroubi, Philippe Zarka
Oct 22, 2021
The Dark Ages and Cosmic Dawn are largely unexplored windows on the infant Universe (z ~ 200-10). Observations of the redshifted 21-cm line of neutral hydrogen can provide valuable new insight into fundamental physics and...
HERA Phase i Limits on the Cosmic 21 cm Signal
Z Abdurashidova, JE Aguirre, P Alexander, ZS Ali, Y Balfour, R Barkana, AP Beardsley, G Bernardi, TS Billings, JD Bowman, RF Bradley, P Bull, J Burba, S Carey, CL Carilli, C Cheng, DR DeBoer, M Dexter, E De Lera Acedo, JS Dillon, J Ely, A Ewall-Wice, N Fagnoni, A Fialkov, R Fritz, SR Furlanetto, K Gale-Sides, B Glendenning, D Gorthi, B Greig, J Grobbelaar, Z Halday, BJ Hazelton, S Heimersheim, JN Hewitt, J Hickish, DC Jacobs, A Julius, NS Kern, J Kerrigan, P Kittiwisit, SA Kohn, M Kolopanis, A Lanman, P La Plante, T Lekalake, D Lewis, A Liu, YZ Ma, D Macmahon, L Malan, C Malgas, M Maree, ZE Martinot, E Matsetela, A Mesinger, J Mirocha, M Molewa, MF Morales, T Mosiane, JB Munoz, SG Murray, AR Neben, B Nikolic, CD Nunhokee, AR Parsons, N Patra, S Pieterse, JC Pober, Y Qin, N Razavi-Ghods, I Reis, J Ringuette, J Robnett, K Rosie, MG Santos, S Sikder, P Sims, C Smith, A Syce, N Thyagarajan, PKG Williams, H Zheng
Jan 28, 2022
Recently, the Hydrogen Epoch of Reionization Array (HERA) collaboration has
produced the experiment's first upper limits on the power spectrum of 21-cm
fluctuations at z~8 and 10. Here, we use several independent theoretical...
Qualitative analysis of small (≤2 cm) regenerative nodules, dysplastic nodules and well-differentiated HCCs with gadoxetic acid MRI
M Di Martino, M Anzidei, F Zaccagna, L Saba, S Bosco, M Rossi, S Ginanni Corradini, C Catalano
Feb 02, 2017
$\textbf{BACKGROUND}$: The characterization of small lesions in cirrhotic patients is extremely difficult due to the overlap of imaging features among different entities in the step-way of the hepatocarcinogenesis. The aim of...
Bio-Electrocatalytic Conversion of Food Waste to Ethylene via Succinic Acid as the Central Intermediate
CM Pichler, S Bhattacharjee, E Lam, L Su, A Collauto, MM Roessler, SJ Cobb, VM Badiani, M Rahaman, E Reisner
Dec 12, 2022
Ethylene is an important feedstock in the chemical industry, but currently requires production from fossil resources. The electrocatalytic oxidative decarboxylation of succinic acid offers in principle an environmentally...
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