Results 31 to 40 of about 1,110,244 (228)

Part Affinity Fields and CoordConv for Detecting Landmarks of Lumbar Vertebrae and Sacrum in X-ray Images

open access: yesSensors, 2022
With the prevalence of degenerative diseases due to the increase in the aging population, we have encountered many spine-related disorders. Since the spine is a crucial part of the body, fast and accurate diagnosis is critically important.
Chang-Hyeon An   +3 more
doaj   +1 more source

XRIndex:a brief screening tool for individual differences in security threat detection in x-ray images [PDF]

open access: yes, 2015
X-ray imaging is a cost-effective technique at security checkpoints that typically require the presence of human operators. We have previously shown that self-reported attention to detail can predict threat detection performance with small-vehicle x-ray ...
Ferri, Francesca   +3 more
core   +4 more sources

Gravitational Lensing of the X-Ray Background by Clusters of Galaxies [PDF]

open access: yes, 1996
Gravitational lensing by clusters of galaxies affects the cosmic X-ray background (XRB) by altering the observed density and flux distribution of background X-ray sources. At faint detection flux thresholds, the resolved X-ray sources appear brighter and
Abraham Loeb   +14 more
core   +2 more sources

Luminescent and Scintillating Properties of Lanthanum Fluoride Nanocrystals in Response to Gamma/Neutron Irradiation: Codoping with Ce Activator, Yb Wavelength Shifter, and Gd Neutron Captor [PDF]

open access: yes, 2016
A novel concept for detection and spectroscopy of gamma rays, and detection of thermal neutrons based on codoped lanthanum fluoride nanocrystals containing gadolinium is presented.The trends of colloidal synthesis of the mentioned material, LaF3 co-doped
Blostein, Juan Jerónimo   +5 more
core   +2 more sources

X-rays from HH210 in the Orion nebula [PDF]

open access: yes, 2006
We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210.
Bally, John   +5 more
core   +5 more sources

COVID-19 Detection via Ultra-Low-Dose X-ray Images Enabled by Deep Learning

open access: yesBioengineering, 2023
The detection of Coronavirus disease 2019 (COVID-19) is crucial for controlling the spread of the virus. Current research utilizes X-ray imaging and artificial intelligence for COVID-19 diagnosis.
Isah Salim Ahmad   +11 more
doaj   +1 more source

AXJ1749+684: a narrow emission-line galaxy with a flat X-ray spectrum [PDF]

open access: yes, 1997
We report the serendipitous detection of an X-ray source, AXJ1749+684, with the ASCA Gas Imaging Spectrometer. AXJ1749+684 is identified with a LINER/starburst-type spiral galaxy KUG 1750+683A at a redshift z = 0.05.
Almaini, O.   +4 more
core   +3 more sources

Shrinkable Hydrogel-Enhanced Biomarker Detection with X-ray Fluorescent Nanoparticles

open access: yesNanomaterials, 2022
This paper reports a new method to enhance the sensitivity of nanoparticle-based protein detection with X-ray fluorescence by exploiting the large volume reduction of hydrogel upon dehydration.
Yiting Zheng, Ruiqing Huo, Ming Su
doaj   +1 more source

X-ray and $\gamma$-ray Studies of the Millisecond Pulsar and Possible X-ray Binary/Radio Pulsar Transition Object PSR J1723-2837 [PDF]

open access: yes, 2013
We present X-ray observations of the "redback" eclipsing radio millisecond pulsar and candidate radio pulsar/X-ray binary transition object PSR J1723-2837.
Bogdanov, Slavko   +5 more
core   +3 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

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