Results 51 to 60 of about 5,765,441 (310)

Effect of Same-Temperature GaN Cap Layer on the InGaN/GaN Multiquantum Well of Green Light-Emitting Diode on Silicon Substrate

open access: yesThe Scientific World Journal, 2013
GaN green LED was grown on Si (111) substrate by MOCVD. To enhance the quality of InGaN/GaN MQWs, same-temperature (ST) GaN protection layers with different thickness of 8 Å, 15 Å, and 30 Å were induced after the InGaN quantum wells (QWs) layer.
Changda Zheng   +4 more
doaj   +1 more source

L’Option Hauts Plateaux-Sud Comme Outil de Développement Durable du Territoire Algérien

open access: yesİzmir İktisat Dergisi, 2020
Ce travail a mis l’accent sur les dysfonctionnements du territoire algérien et sur le déséquilibre alarmant caractérisant la répartition spatiale des activités et du peuplement.
Halim Zıdelkhıl   +2 more
doaj   +1 more source

Tracking ‘Pure’ Systematic Risk with Realized Betas for Bitcoin and Ethereum

open access: yesEconometrics, 2023
Using the capital asset pricing model, this article critically assesses the relative importance of computing ‘realized’ betas from high-frequency returns for Bitcoin and Ethereum—the two major cryptocurrencies—against their classic counterparts using the
Bilel Sanhaji, Julien Chevallier
doaj   +1 more source

Safety and Effectiveness of a High‐Dose, Tailored Tissue Plasminogen Activator Therapy Protocol: A Joint Pediatric Hematology and Cardiac ICU Quality Improvement Initiative Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric thromboembolism is increasingly encountered in critical care. Systemic thrombolysis with tissue plasminogen activator (tPA) facilitates vessel or valve patency, yet pediatric‐specific protocols remain undefined, and safety concerns persist. Objective To evaluate the efficacy and safety of a tailored, prolonged systemic tPA
Eran Shostak   +5 more
wiley   +1 more source

Reduction of parasitic reaction in high-temperature AlN growth by jet stream gas flow metal–organic vapor phase epitaxy

open access: yesScientific Reports, 2022
AlGaN-based deep ultraviolet light-emitting diodes (LEDs) have a wide range of applications such as medical diagnostics, gas sensing, and water sterilization.
Kentaro Nagamatsu   +6 more
doaj   +1 more source

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega   +10 more
wiley   +1 more source

LED ULTRAVIOLET EXPOSURE UNIT WITH ADJUSTABLE EXPOSURE TIME

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The possibilities of improving the quality of the topological pattern in the exposure of thick-film photoresists due to uniform irradiation with ultraviolet light-emitting diodes are investigated. The results of an experimental study of the developed LED
A. E. Cheliapin   +3 more
doaj   +1 more source

Neuropsychological and Educational Outcomes in Shwachman–Diamond Syndrome—A Report From the North American Shwachman–Diamond Syndrome Registry

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Shwachman–Diamond syndrome (SDS) is a rare autosomal recessive ribosomopathy characterized by bone marrow failure and multisystem involvement, with emerging evidence of associated neurocognitive impairment. Methods We conducted a retrospective study of 240 individuals with biallelic Shwachman–Bodian–Diamond syndrome (SBDS) mutations
Jane Koo   +11 more
wiley   +1 more source

Turisterne strømmer nordpå – det kræver flere kortdata

open access: yesGeoforum Perspektiv
Turismeaktører arbejder ofte på tværs af kommuner, gerne i hele regioner eller endda på nationalt plan. Uanset størrelse og organisering har turismeaktørerne det til fælles, at de efterspørger standardiserede, pålidelige data om naturområder ...
Sofie Kofoed Led
doaj   +1 more source

Survival After Hematopoietic Stem Cell Transplantation in Diamond–Blackfan Anemia Syndrome: The Role of Iron Overload—A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT We assessed the effect of iron overload (IO) on mortality and complications following hematopoietic stem cell transplantation (HSCT) in patients with Diamond–Blackfan anemia syndrome (DBAS) in a systematic review of individual participant data and cohort data from observational studies.
Geoffrey Z. L. Kuppens   +6 more
wiley   +1 more source

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