Results 121 to 130 of about 280,119 (256)

Characteristics of Low-latitude Coronal Holes near the Maximum of Solar Cycle 24 [PDF]

open access: yes, 2017
We investigate the statistics of 288 low-latitude coronal holes extracted from SDO/AIA-193 filtergrams over the time range of 2011 January 01–2013 December 31. We analyze the distribution of characteristic coronal hole properties, such as the areas, mean
Temmer, Manuela   +6 more
core   +1 more source

Accuracy of Freehand Versus Navigated External Ventricular Drainage and Comparison of Insertion Trajectories: A Systematic Review and Meta Analysis

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The external ventricular drainage is a routine neurosurgical procedure, most often performed by cannulating the frontal horn of the lateral ventricle. Various entry points and insertion trajectory definitions have been proposed; nevertheless, it remains unclear which approach yields the highest success rate.
Adam Sedlák   +7 more
wiley   +1 more source

Solar Origins of Short-Term Periodicities in Near-Earth Solar Wind and Interplanetary Magnetic Field

open access: yesApplied Sciences
This study investigates the solar origins of short-term periodicities in the near-Earth solar wind and interplanetary magnetic field (IMF) using long-term observations (1995–2024) and Potential Field Source Surface modeling.
Huichao Li   +5 more
doaj   +1 more source

Long‐term outcomes of microsurgical interdental papilla reconstruction: 13‐year and 18‐year case follow‐ups

open access: yesClinical Advances in Periodontics, EarlyView.
Abstract Background Loss of the interdental papilla compromises esthetics, speech, and hygiene, significantly affecting quality of life and psychological well‐being. Reconstruction has long been considered unpredictable, particularly in Cairo RT3 cases with advanced interproximal bone loss.
Katsuhiko Akiyama
wiley   +1 more source

Modeling temporal lobe epilepsy with hippocampal sclerosis in rats using the selective neurotoxin stable substance P‐saporin

open access: yesEpilepsia, EarlyView.
On day 0 adult male and female rats were injected with Stable Substance P‐Saporin (SSP‐SAP) at 4 unilateral sites along the longitudinal axis of the dentate gyrus. Rats exhibited spontaneous electrographic and behavioral reactive seizures between days 4‐6. There was a progressive loss of CA1 and CA3 neurons and a progressive increase in astrocytes over
Srijal Gupta   +4 more
wiley   +1 more source

Diffusion MRI of the Body: Beyond PGSE‐EPI

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Diffusion magnetic resonance imaging (dMRI) is a widely used clinical imaging technique which is sensitive to changes in tissue microstructure including cellularity, perfusion, and tissue damage. DMRI has been used in whole‐body imaging as well as in targeted imaging of every major anatomical region.
Matthew T. Cherukara   +6 more
wiley   +1 more source

Knee joint line obliquity alters lateral meniscal root tension, tibiofemoral subluxation and compartment‐specific contact pressures

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose The objective was to measure effects of joint line obliquity (JLO) on meniscus posterior root tension, tibiofemoral subluxation and contact pressures. It was hypothesised that a medial JLO would increase medial meniscal (MM) root tension, medial tibiofemoral subluxation and medial compartment contact pressure, and vice versa for ...
Shuntaro Nejima   +5 more
wiley   +1 more source

A Comparison of the X-Ray Polarimetric Properties of Stellar and Supermassive Black Holes

open access: yesThe Astrophysical Journal
X-ray polarization provides a new way to probe accretion geometry in black hole systems. If the accretion geometry of black holes is similar regardless of mass, we should expect the same to be true of their polarization properties.
M. Lynne Saade   +3 more
doaj   +1 more source

Solar Corona Structures Detection and Segmentation Using Deep Neural Networks: A Survey

open access: yesIEEE Access
Image segmentation and detection of solar corona structures are a critical part of space weather applications. In recent years, deep learning-based techniques have proven to be effective for various automatic solar image processing tasks.
Peter Butka   +4 more
doaj   +1 more source

Management of increased posterior tibial slope in ACL deficiency: A narrative review and recommendation of the Osteotomy Committee of the German Knee Society

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Increased posterior tibial slope (PTS) is a known risk factor for anterior cruciate ligament (ACL) deficiency and graft failure after ACL reconstruction (ACLR). Although many studies investigated different aspects related to the PTS, there is still a lack of comprehensive recommendations and practical guidelines, especially with regard to ...
Philipp Mayer   +13 more
wiley   +1 more source

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