Results 41 to 50 of about 294,681 (298)

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Impact of Multiple Grid-Connected Solar PV Inverters on Harmonics in the High-Frequency Range

open access: yesEnergies
In recent years, integration of solar photovoltaic (PV) systems into distribution networks has been increasing rapidly, as it has become the most promising renewable energy source (RES) in the transition of power generation from centralised to ...
Kasun Peiris   +3 more
doaj   +1 more source

Harmonic Oscillators in CMOS—A Tutorial Overview

open access: yesIEEE Open Journal of the Solid-State Circuits Society, 2021
The harmonic oscillator is a truly irreplaceable as well as ubiquitous analog integrated circuit. Starting from the basics of its CMOS implementation, we will discuss the phase noise of the harmonic oscillator in some detail, where the intrinsic large ...
Pietro Andreani, Andrea Bevilacqua
doaj   +1 more source

Harmonic monsters

open access: yesJournal of Approximation Theory, 2003
Using a theorem of \textit{S. J. Gardiner} [Harmonic approximation (1995; Zbl 0826.31002)], the author shows that there exists a harmonic function \(h\) on a non-empty open subset \(\Omega\) of \(\mathbb{R}^d\), where \(d\geq 2\), which behaves wildly near every boundary point of \(\Omega\).
openaire   +1 more source

Harmonic Causation and Harmonic Echoes [PDF]

open access: yesNature, 1873
IN reference to the question of “Harmonic Echoes,” allow me to suggest to those who may have the opportunity of observation, how desirable it is that these echo-tones should be investigated in a manner to determine whether they are truly harmonic or not. There would be no difficulty in testing the sounds given in response to the notes of a closed organ-
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Gambus Hadhramaut: The Malaysian Malay Lute Tuning Retrieval

open access: yesBioResources, 2023
This study identified elements in a simple homemade gambus from a local crafter using a scientific approach. The gambus was made from geronggang wood (Cratoxylum arborescens), a light Malaysian hardwood with pink sapwood, distinct from the heartwood with
Sinin Hamdan   +4 more
doaj  

Lorentz Harmonics, Squeeze Harmonics and Their Physical Applications [PDF]

open access: yesSymmetry, 2011
Among the symmetries in physics, the rotation symmetry is most familiar to us. It is known that the spherical harmonics serve useful purposes when the world is rotated. Squeeze transformations are also becoming more prominent in physics, particularly in optical sciences and in high-energy physics.
Kim, Young S., Noz, Marilyn E.
openaire   +4 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

Plucking Location and Timbre of a Guitar

open access: yesInternational Scholastic Journal of Science, 2022
A guitar string was plucked at 21 positions spanning the whole string with a consistent plucking method. The sound produced by the pluck was recorded and analyzed under a frequency-amplitude graph.
Lucas Aldea
doaj  

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