Results 51 to 60 of about 1,405 (223)

OTHR-10. Pilocytic astrocytoma with respect to treatment

Neuro-Oncology, 2022
Abstract AIM: To describe the sizes of pilocytic astrocytoma with respect to treatment Methodology Pediatric pilocytic astrocytomas cases from 2001 to 2021 were retrospectively reviewed in this Institutional Review Board approved study.
Hwee Tang, Phua, Nisa, Sameema
openaire   +1 more source

Effect of Frequency Monitoring System for Over-The-Horizon Radar due to the presence of patches and arcs within the polar cap ionosphere

, 2020
High frequency Over-the-Horizon Radar (OTHR)provides an economical means to track non-cooperative airtargets over large expanses of land and ocean.
Alan Stocker, David Siddle, Alan J Stocker (9875672), Michael Warrington, David R Siddle (9875675), Thayananthan Thayaparan, E Michael Warrington (9875669), Thayananthan Thayaparan (9875666)   +7 more
core   +1 more source

Seascape Connectivity Shapes Genetic and Species β‐Diversity in Tropical Reef Fishes

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Our study combines species occurrence data from five reef fish families with genomic SNP data for 19 species. A correlation between genetic and species β‐diversity emerges only in the Western Indian Ocean, where higher genetic β‐diversity and significant isolation by distance at both the population and community levels are detected.
Maurine Vilcot, Thomas Keggin, Camille Albouy, Giulia F. A. Donati, Andrés Acosta‐Chaparro, Giomar H. Borrero‐Pérez, Marie‐Charlotte Cheutin, Juan David González Corredor, Régis Hocdé, Jean‐Baptiste Juhel, Virginie Marques, David Mouillot, Maria Mutis‐Martinezguerra, Andrea Polanco F., Mark J. A. Vermeij, Loïc Pellissier, Stéphanie Manel   +16 more
wiley   +1 more source

A New Approach to OTH Main Parameters Determination [PDF]

Radioengineering, 2019
In this work, we propose a method based on a simulation that incorporates several models to provide the set of parameters needed on Over-The-Horizon radars (OTHR) performance evaluation, which consists in a versatile software tool.
Z. Saavedra, J. N. Argota, M. A. Cabrera, A. G. Elias   +3 more
doaj  

Cassava Endophytic Bacteriome as Potential Biocontrol Agents Against Three Crop Phytopathogenic Fungi

MicrobiologyOpen, Volume 15, Issue 2, April 2026.
Eighty‐four endophytic bacteria from cassava were assessed for antagonistic activity against phytopathogens Colletotrichum siamense, Colletotrichum sublineola and Phytophthora infestans infecting cassava, sorghum and potato, respectively. Fourteen endophytic bacteria exhibited antifungal activity against the three phytopathogens, of which four ...
Roselyne Nyawir Owino, Edward K. Nguu, George O. Obiero, Evans N. Nyaboga   +3 more
wiley   +1 more source

Simultaneous operation of two over-the-horizon radars [PDF]

, 2004
—By exploiting the reflective and refractive nature of high-frequency (HF) radiowave propagation through the iono-sphere or the conducting sea surface, over-the-horizon radar (OTHR) systems perform wide-area surveillance at long range well beyond the ...
Yimin Zhang, Moeness G. Amin, Gordon J. Frazer, Senior Member   +3 more
core   +1 more source

Pandemic‐induced changes in food acquisitions: Implications for child diet quality in the United States

American Journal of Agricultural Economics, Volume 108, Issue 1, Page 363-382, January 2026.
Abstract We estimate how the COVID‐19 pandemic altered school‐aged children's diet quality from March 2020 to July 2022 through the lens of food acquisitions. Because nationally representative food‐consumption data are absent during this time, we use several data sources to predict changes in diet quality. We first estimate a model of diet quality as a
Travis A. Smith, Joanne Guthrie, Biing‐Hwan Lin, Alexander Stevens   +3 more
wiley   +1 more source

ENSO‐Driven Variability in Ozone Sources and Its Impact on Tropospheric Ozone Radiative Forcing

Geophysical Research Letters, Volume 52, Issue 15, 16 August 2025.
Abstract Ozone is the third strongest anthropogenic greenhouse gas with highest radiative efficiency in the tropical upper troposphere. Variability driven by El Niño‐Southern Oscillation (ENSO) modulates tropospheric column ozone instantaneous radiative forcing (TCO‐IRF) through changes in atmospheric dynamics, natural emissions, and stratospheric ...
Arman Pouyaei, Paul Ginoux, Vaishali Naik, Jing Feng, Larry W. Horowitz, Fabien Paulot   +5 more
wiley   +1 more source

An Efficient Multi-Path Multitarget Tracking Algorithm for Over-The-Horizon Radar

Sensors, 2019
In target tracking environments using over-the-horizon radar (OTHR), one target may generate multiple detections through different signal propagation paths.
Yuan Huang, Yifang Shi, Taek Lyul Song
doaj   +1 more source

Use of adaptive non-causal transmit beamforming in OTHR: Experimental results

, 2008
Copyright © 2008 IEEEWe report results from an experiment that applied multiple-input multiple-output (MIMO) waveform techniques to over-the-horizon radar (OTHR).
Frazer, G., Y. I. Abramovich, Abramovich, Y., Johnson, B., G. J. Frazer, B. A. Johnson   +5 more
core   +1 more source