Results 31 to 40 of about 548,481 (236)

Sensitivity of the Cherenkov Telescope Array to the detection of axion-like particles at high gamma-ray opacities

open access: yes, 2014
Extensions of the Standard Model of particles commonly predict the existence of axion(-like) particles (ALPs) that could be detected through their coupling to photons in external magnetic fields.
Conrad, J., Meyer, M.
core   +1 more source

Comparing Calcium Sulfate Fouling on Polymeric and Metal Heat Transfer Surfaces

open access: yesChemie Ingenieur Technik
Fouling mitigation provides many challenges in process equipment, especially in heat exchangers. In this work, the fouling behaviors of two polymers are compared to 1.4301 stainless steel (SS) in calcium sulfate solutions.
Philipp Pelz   +7 more
semanticscholar   +1 more source

Lessons learned after one year of COVID-19 from a urologist and radiotherapist view: A German survey on prostate cancer diagnosis and treatment.

open access: yesPLoS ONE, 2022
IntroductionSince the beginning of the pandemic in 2020, COVID-19 has changed the medical landscape. International recommendations for localized prostate cancer (PCa) include deferred treatment and adjusted therapeutic routines.Materials and methodsTo ...
Nina N Harke   +52 more
doaj   +2 more sources

On detecting oscillations of gamma rays into axion-like particles in turbulent and coherent magnetic fields

open access: yes, 2014
Background radiation fields pervade the Universe, and above a certain energy any $\gamma$-ray flux emitted by an extragalactic source should be attenuated due to $e^+e^-$ pair production.
Conrad, Jan   +2 more
core   +1 more source

Sensitivity of the Cherenkov Telescope Array to the Detection of Intergalactic Magnetic Fields

open access: yes, 2016
Very high energy (VHE; energy $E \gtrsim 100\,$GeV) $\gamma$-rays originating from extragalactic sources undergo pair production with low-energy photons of background radiation fields.
Conrad, Jan   +2 more
core   +1 more source

SUBSTITUTING FOR THE STATE: The Sovereignty Impacts of Diverse Citizens’ Off‐grid Infrastructure Strategies in South Africa

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract In South Africa, citizens in both low‐ and high‐income areas are increasingly providing their own services to mitigate the unreliability, unaffordability and inaccessibility of state services. This article examines diverse case studies across socio‐economic and residential typologies to explore shifts in service provision responsibilities from
Fiona Anciano   +3 more
wiley   +1 more source

Raman spectroscopy of epitaxial graphene on a SiC substrate

open access: yes, 2008
The fabrication of epitaxial graphene (EG) on SiC substrate by annealing has attracted a lot of interest as it may speed up the application of graphene for future electronic devices.
A. T. S. Wee   +10 more
core   +1 more source

Pentacene islands grown on ultra-thin SiO2 [PDF]

open access: yes, 2008
Ultra-thin oxide (UTO) films were grown on Si(111) in ultrahigh vacuum at room temperature and characterized by scanning tunneling microscopy. The ultra-thin oxide films were then used as substrates for room temperature growth of pentacene.
Al-Mahboob   +41 more
core   +1 more source

Cold‐blooded commerce: Characterizing and predicting trade in Australian squamates

open access: yesConservation Science and Practice, EarlyView.
Despite a national ban on native wildlife exports, Australian reptile species continue to appear in international trade. Using boosted regression trees, we found that large body sizes and taxonomic family, rather than color or patterning, best predicted trade presence. We identified 59 species likely to be targeted in the future, providing key insights
Sebastian Chekunov   +5 more
wiley   +1 more source

Targeting ferroptosis protects against experimental (multi)organ dysfunction and death

open access: yesNature Communications, 2022
The most common cause of death in the intensive care unit (ICU) is the development of multiorgan dysfunction syndrome (MODS). Besides life-supporting treatments, no cure exists, and its mechanisms are still poorly understood. Catalytic iron is associated
Samya Van Coillie   +28 more
doaj   +1 more source

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