Results 21 to 30 of about 19,853,280 (266)

An integrated dual-wave ultrasonic apparatus based on solid-state coupling for complete elastic characterization [PDF]

open access: yesAIP Advances
Accurate determination of elastic moduli remains challenging for brittle and surface sensitive materials. Traditional ultrasonic techniques rely on liquid coupling media, which impedes shear wave transmission, and require complicated phase corrections ...
Zhuang Li   +7 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

A high-temperature high-pressure gas-handling cell for neutron scattering experiments.

open access: yes, 2004
In this article, we describe a high-pressure gas-handling cell at high temperatures developed for neutron scattering studies. The cell has been developed from a pre-existing autoclave design, that was developed for high-pressure high-temperature ...
Gray, Evan   +7 more
core   +2 more sources

InGaN multiquantum wells—problem of carrier injection

open access: yesScientific Reports
This study addresses the issue of effective carrier injection to quantum wells in laser diode structures. The nitride light emitting structures used in this study were fabricated by Metal-Organic Vapor Phase Epitaxy (MOVPE).
Agata Bojarska-Cieślińska   +4 more
doaj   +1 more source

High pressure Raman study and phase transitions of KIO3 non-linear optical single crystals

open access: yes, 1998
Potassium iodate KIO3 single crystal samples have been studied under pressure up to 35 GPa at room temperature. Drastic spectral changes and phase transitions were observed. The first phase transition occurs at 5.
Zhou, F.   +4 more
core   +1 more source

Language, Culture, and Cancer: Qualitative Insights Into Communication Disparities Among Spanish‐Speaking Caregivers of Children With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Latino children are projected to make up nearly one‐third of United States (US) children by 2060, and many of their caregivers speak Spanish. Prior survey research has documented communication difficulties for Spanish‐speaking caregivers of children with cancer, but contemporary qualitative data are limited.
Jenny Ruiz   +6 more
wiley   +1 more source

Pressure-Induced Polymerization: Addition and Condensation Reactions

open access: yesMolecules, 2021
Under pressure of 1–100 GPa, unsaturated organic molecules tend to form covalent bond to each other for a negative enthalpy change, which often produces polymeric materials with extended carbon skeleton.
Fang Li   +4 more
doaj   +1 more source

High pressure study of the 2D polymeric phase of C60 by means of Raman spectroscopy

open access: yes, 2000
The effect of high hydrostatic pressure, up to 12GPa, on the intramolecular phonon frequencies and the material stability of the two-dimensional tetragonal Cm polymer has been studied by means of Raman spectroscopy in the spectral range of the radial ...
Meletov, K. P.,   +13 more
core   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess   +5 more
wiley   +1 more source

Pressure calibrations of high-pressure large-volume presses at HPSTAR [PDF]

open access: yesMatter and Radiation at Extremes
Large-volume presses (LVPs) are widely utilized in diverse research fields—including high-pressure physics, chemistry, materials science, and Earth and planetary sciences—to investigate the physical and chemical properties of materials under extreme high-
Yongjiang Xu   +38 more
doaj   +1 more source

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