Results 81 to 90 of about 14,415,700 (341)

Nonradiative Recombination of Excitons in Carbon Nanotubes Mediated by Free Charge Carriers [PDF]

, 2008
Free electrons or holes can mediate the nonradiative recombination of excitons in carbon nanotubes. Kinematic constraints arising from the quasi one-dimensional nature of excitons and charge carriers lead to a thermal activation barrier for the process ...
E. J. Mele, J. M. Kinder, J. Sakurai
core   +4 more sources

Lead Free Multilayered Polymer Composites for Radiation Shielding

Polymers, 2022
Silicone-based polymer composites containing high atomic number additives are prioritized for the development of new materials for radiation shielding, due to their mechanical, thermal, electrical, and multifunctional properties.
L. Gilys, E. Griškonis, P. Griškevičius, D. Adlienė   +3 more
semanticscholar   +1 more source

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd, Melissa Taylor, Helen Fulbright, Bob Phillips   +3 more
wiley   +1 more source

Ferroelectric and Piezoelectric Properties of (Mg_1/3Nb_2/3)⁴⁺-Doped Bismuth Sodium Titanate Ceramics

Ceramics
Lead-free (Bi1/2Na1/2)(Ti1−x(Mg1/3Nb2/3)x)O3 ceramics were synthesized using the solid-phase method, and the effects of varying (Mg1/3Nb2/3)4+ content, substituting for Ti4+ ions at the B-site of the BNT perovskite lattice, on piezoelectric performance ...
Yonggang Zhao, Ning Yang, Yi Chen, Xingting Li, Luyao Wang, Peng Wang, Guangzhi Dong   +6 more
doaj   +1 more source

Prospective of (BaCa)(ZrTi)O₃ Lead-free Piezoelectric Ceramics

Crystals, 2019
Piezoelectric ceramics is a functional material that can convert mechanical energy into electrical energy and vice versa. It can find wide applications ranging from our daily life to high-end techniques and dominates a billion-dollar market.
Wenfeng Liu, Lu Cheng, Shengtao Li
doaj   +1 more source

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez, Anna Felip‐Badia, Marina Caballero‐Bellon, Nazaret Sanchez‐Sierra, Alicia Castañeda, Moira Garraus, Maite Gorostegui, Margarida Simão‐Rafael, Juan Pablo Muñoz, Marta Perez‐Somarriba, Salvador Mañe, Mariana Cecilia Planells, Sara Perez‐Jaume, Jaume Mora   +13 more
wiley   +1 more source

Classical nucleation theory in ordering alloys precipitating with L12 structure [PDF]

, 2007
By means of low-temperature expansions (LTEs), the nucleation free energy and the precipitate interface free energy are expressed as functions of the solubility limit for alloys which lead to the precipitation of a stoichiometric L12 compound such as Al ...
Clouet, Emmanuel, Nastar, Maylise
core   +4 more sources

Improved Outcomes for Older Children, Adolescents, and Young Adults With Neuroblastoma in the Post‐Immunotherapy Era: An Updated Report From the International Neuroblastoma Risk Group

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background We describe clinical and biologic characteristics of neuroblastoma in older children, adolescents, and young adults (OCAYA); describe survival outcomes in the post‐immunotherapy era; and identify if there is an age cut‐off that best discriminates outcomes.
Rebecca J. Deyell, Kavitha Srivatsa, Paola Angelini, Pei‐Chi Kao, Brady Payne, Arlene Naranjo, Sveva Castelli, Miho Kato, Miki Ohira, Ulriche Pöetschger, Yaël Mossé, Lucas Moreno, Meredith S. Irwin, Ramya Ramanujachar, Wendy B. London   +14 more
wiley   +1 more source

Developmental Disorders in Children Recently Diagnosed With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Neurocognitive deficits in adult survivors of childhood cancer are well established, but less is known about developmental disorders (DD) arising shortly after cancer diagnosis. Using 2016–2019 linked Ohio cancer registry and Medicaid data, we compared DD among 324 children with cancer and 606,913 cancer‐free controls.
Jamie Shoag, Long Vu, Ritika Miryala, Jeffrey M. Albert, Molly McVoy, Siran M. Koroukian   +5 more
wiley   +1 more source

Lead‐Free Perovskites and Metal Halides for Resistive Switching Memory and Artificial Synapse

Small Structures
Memristive devices such as resistive switching memories and artificial synapses have emerged as promising technologies to overcome the technological challenges associated with the von Neumann bottleneck.
Bo Wei Zhang, Chun‐Ho Lin, Shruti Nirantar, EQ Han, Yurou Zhang, Zitong Wang, Miaoqiang Lyu, Lianzhou Wang   +7 more
doaj   +1 more source