Results 61 to 70 of about 223,255 (303)
, 2015 High redshift quasars at z>6 have masses up to ~$10^9$ M$_\odot$. One of the pathways to their formation includes direct collapse of gas, forming a supermassive star, precursor of the black hole seed.
Glover, Simon C. O. +4 more
core +2 more sources
A model for the condensation of a dusty plasma [PDF]
, 2004 A model for the condensation of a dusty plasma is constructed by considering the spherical shielding layers surrounding a dust grain test particle. The collisionless region less than a collision mean free path from the test particle is shown to separate ...
P. M. Bellan, Wigner E.
core +3 more sources
Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function
FEBS Open Bio, EarlyView.We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke +4 more
wiley +1 more source
An Experimental Investigation of the use of Q-Factor to Determine the Shielding Effectiveness of Electrically Large Equipment Enclosures with Apertures [PDF]
, 2011 The current method of obtaining a Shielding Effectiveness (SE) measurement involves field measurements both inside and outside the enclosure to be tested. In this paper, a relationship between the Shielding Effectiveness and the Q-factor of the enclosure
Armstrong, Robert +2 more
core
Aging and Cancer, EarlyView.ABSTRACT As global populations age, cancer is increasingly becoming a leading cause of morbidity and mortality among older adults, particularly in low‐ and middle‐income countries (LMICs). Despite accounting for the majority of new cancer cases and deaths, older individuals remain underrepresented in cancer research, clinical guidelines, and health ...
Ibrahim Bidemi Abdullateef +2 more
wiley +1 more source
Materials Today AdvancesUltra-sensitive quantum magnetic sensors represent a new paradigm for measuring weak magnetic fields with unprecedented precision. However, the widespread application of this technology is constrained by the challenge of achieving higher magnetic ...
Kun Chen +12 more
doaj +1 more source
, 2018 A finite-size uniform random distribution of vertically aligned field emitters on a planar surface is studied under the assumption that the asymptotic field is uniform and parallel to the emitter axis.
Biswas, Debabrata, Rudra, Rashbihari
core +1 more source
Functional Connectivity Linked to Cognitive Recovery After Minor Stroke
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri +7 more
wiley +1 more source
Radiation shielding properties of polycarbonate/poly (methyle methacrylate) polymer blends comprising cobalt tin sulphide, zinc molybdate, and copper cobaltite oxide composites in photon beams [PDF]
Nuclear Technology and Radiation ProtectionThe present study focuses on the calculation of selected shielding parameters of polycarbonate/poly(methyl methacrylate), polycarbonate/poly (methyl methacrylate)/cobalt tin sulphide, polycarbonate/poly(methyl methacrylate)/zinc molybdate, and ...
Alsufyani Sultan J. +5 more
doaj +1 more source
Scientific Reports, 2023 Reinforced polymer composites are a recent type of advanced shielding material that has been studied experimentally and theoretically. This work described the protection properties of silicon rubber filled with nano and micro tin oxide (II).
Mona M. Gouda +4 more
doaj +1 more source