Results 71 to 80 of about 10,510,063 (301)

Flat, broadband supercontinuum generation at low pulse energies in a dispersion-tailored lead-silicate fibre

open access: yes, 2011
We report flat, broadband supercontinuum generation at low pump pulse energies (69pJ 740fs pulses at 1540nm) in a lead-silicate fibre providing a unique combination of high nonlinearity (820W-1km-1) and a flat near-zero dispersion ...
Horak, P.   +13 more
core   +2 more sources

Observations of existence and instability dynamics of near-zero-dispersion temporal Kerr cavity solitons

open access: yesPhysical Review Research, 2021
Dissipative Kerr cavity solitons (CSs) are persisting pulses of light that manifest themselves in driven optical resonators and that have attracted significant attention over the last decade.
Zongda Li   +6 more
doaj   +1 more source

Abatacept for Prophylaxis of Acute and Chronic Graft‐Versus‐Host‐Disease in Children Undergoing Allogeneic Hematopoietic Stem Cell Transplantation—A Systematic Review and Meta‐Analysis of Cohort Studies

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Graft‐versus‐host disease (GvHD) remains one of the most significant complications of hematopoietic stem cell transplantation (HSCT). Abatacept, a selective T‐cell costimulation modulator, is a relatively novel prophylactic agent, though pediatric data remain limited.
Matthijs D. Kruizinga   +3 more
wiley   +1 more source

Composite quantile regression approach to batch effect correction in microbiome data

open access: yesFrontiers in Microbiology
BackgroundBatch effects refer to data variations that arise from non-biological factors such as experimental conditions, equipment, and external factors.
Jiwon Park, Taesung Park
doaj   +1 more source

Ordinal regression models for zero-inflated and/or over-dispersed count data [PDF]

open access: yesScientific Reports, 2019
AbstractCount data commonly arise in natural sciences but adequately modeling these data is challenging due to zero-inflation and over-dispersion. While multiple parametric modeling approaches have been proposed, unfortunately there is no consensus regarding how to choose the best model.
Denis Valle   +3 more
openaire   +2 more sources

Bone and Soft Tissue Neoplasms in Infants Versus Older Children: A Report From the Cancer in Young People in Canada Program

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine   +21 more
wiley   +1 more source

Computational modelling of environment flows featuring gas dispersion [PDF]

open access: yes, 2010
This study particularly aims at understanding flow and pollutant dispersion when flat terrain, single hill and hill with obstacles are present. The emissions of ethylene from a point source are located in eight different positions.
Gerousi, Loukia
core   +3 more sources

Wind tunnel studies of gas dispersion over complex terrain

open access: yesEPJ Web of Conferences, 2016
Wind tunnel studies of gas dispersion over complex terrain model were performed in VZLU Prague. The terrain model with a ground-level emission source was mounted in a boundary layer wind tunnel. Flow and concentration field behind the source was measured.
Michálek Petr, Zacho David
doaj   +1 more source

Burst-by-burst adaptive wireless video telephony over dispersive channels [PDF]

open access: yesSeamless Interconnection for Universal Services. Global Telecommunications Conference. GLOBECOM'99. (Cat. No.99CH37042), 2003
The video performance benefits of burst-by-burst adaptive modulation are studied, employing a higher-order modulation mode, when the channel is favourable, in order to increase the system's bits per symbol throughput and conversely, invoking a more robust, lower-order modulation mode, when the channel exhibits inferior channel quality. It is shown that
Wong, C.H., Cherriman, P.J., Hanzo, L.
openaire   +2 more sources

Impact of Initial Treatment Setting on Survival in Relapsed Pediatric and AYA Bone Sarcomas: A Secondary Analysis of a Prospective Clinical Trial

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Outcomes in relapsed or refractory pediatric and AYA bone sarcomas remain poor, and the impact of early referral to specialized sarcoma centers on survival is unclear. Early centralization of care may improve local and systemic treatment quality, but evidence in this population is limited.
Justyna Antoniuk‐Majchrzak   +9 more
wiley   +1 more source

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