Results 141 to 150 of about 280,119 (256)

Thermal and magnetic field structure of near-equatorial coronal holes

open access: yes
Context. Coronal holes are low-density and unipolar magnetic field structures in the solar corona that trigger geomagnetic disturbances on the Earth. Hence, it is important to understand the genesis and evolutionary behavior of these coronal activity ...
M. Hegde, K. M. Hiremath
core   +1 more source

Long‐term outcome of a non‐reducible congenital atlanto‐occipital subluxation in a warmblood foal

open access: yesEquine Veterinary Education, EarlyView.
Summary An 11‐day‐old warmblood colt was referred to the Large Animal Teaching Hospital, University of Copenhagen, for further investigation of a stiff neck and lateral deviation of the poll, with suspicion of a congenital cervical vertebral abnormality.
D. M. T. Adler   +3 more
wiley   +1 more source

Skeletons of swiftly swimming sharks: Three‐dimensional analysis of lamniform vertebral morphology and mineral architecture

open access: yesJournal of Anatomy, EarlyView.
We examined morphology, 3D arrangement, and mineral amount in cartilaginous vertebrae from four lamniform shark families (Alopiidae, Carchariidae, Cetorhinidae, and Lamnidae). We identified family‐specific mineralization trends, and regional patterning of structures along the column.
Jamie L. Knaub   +6 more
wiley   +1 more source

Thirty Years of Autologous Platelet Concentrates: From Platelet‐Rich Plasma to Platelet‐Rich Fibrin

open access: yesJournal of Periodontal Research, EarlyView.
This review highlights the 30 years of evolution of APCs, with a focus on their clinical applications and recent technological advancements. ABSTRACT Nearly three decades have now passed since autologous platelet concentrates (APCs) were introduced into clinical practice.
Richard J. Miron   +7 more
wiley   +1 more source

Characterisation of sleep apneas and respiratory circuitry in mice lacking CDKL5

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary CDKL5 deficiency disorder is a rare genetic disease caused by mutations in the CDKL5 gene. Central apneas during wakefulness have been reported in patients with CDKL5 deficiency disorder. Studies on CDKL5‐knockout mice, a CDKL5 deficiency disorder model, reported sleep apneas, but it is still unclear whether these events are central (central ...
Gabriele Matteoli   +12 more
wiley   +1 more source

The modeling of quasi-periodic oscillations propagation in the solar corona

open access: yesСовременная наука и инновации
In the general problem of oscillations observed in the solar corona, a particularly intriguing position is occupied by quasi-periodic oscillations, which are often observed in coronal holes.
N. K. Shividov   +4 more
doaj   +1 more source

Heating solar coronal holes

open access: yesThe Astrophysical Journal, 1991
It has been shown that the coronal hole, and the associated high-speed stream in the solar wind, are powered by a heat input of the order of 500,000 ergs/sq cm s, with most of the heat injected in the first 1-2 solar radii, and perhaps 100,000 ergs/sq cm s introduced at distances of several solar radii to provide the high speed of the issuing solar ...
openaire   +1 more source

MHD Waves in Coronal Holes

open access: yes, 2016
This chapter reviews the observations of magnetohydrodynamic (MHD) waves in coronal holes focusing primarily on progress made in the past few years. It also discusses on the new evidences of wave damping and highlights how such observations can be used ...
S. Krishna Prasad   +3 more
core   +1 more source

Creating Perforations in the Sclerotic Region of the Proximal Tibia During Total Knee Arthroplasty to Enhance Prosthesis Stability

open access: yesOrthopaedic Surgery, Volume 17, Issue 5, Page 1397-1405, May 2025.
Abnormal stress in the proximal tibia modifies the bone mineral density distribution pattern, and drilling in the sclerotic region during total knee arthroplasty is correlated with enhanced prosthesis stability. ABSTRACT Objective In patients with varus deformity of the knee, the redistribution of the subchondral bone mineral density (BMD) of the tibia
Chao Sun   +7 more
wiley   +1 more source

Alfvén Waves from Interchange Reconnection at Separators as a Possible Source of Switchbacks

open access: yesThe Astrophysical Journal
Parker Solar Probe has observed Alfvénic fluctuations of amplitude large enough to occasionally reverse the local magnetic field direction—a phenomenon known as a switchback. Some have attributed switchbacks to reconnection in the low corona between open
Dana Longcope, Philip Klaassen
doaj   +1 more source

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