Results 51 to 60 of about 1,875,890 (260)

Lightning Mapping: Techniques, Challenges, and Opportunities [PDF]

open access: yesarXiv, 2020
Despite the significant progress made in studying the lightning phenomenon, precise location and mapping of its occurrence remain a challenge. Lightning mapping can be determined by studying the electromagnetic radiation accompanying the lightning discharges. It can contribute substantially to efforts made to protect lives and valuable assets.
arxiv  

A Study of Lightning Activity over Different Ecological Zones of Nepal [PDF]

open access: yesarXiv, 2021
In the present work, occurrence of lightning activity over different ecological zones of Nepal has been studied. It has been observed that Lower Tropical zone receives lightning strikes with largest value of density of strikes whereas the Trans-Himalayan zone receives lightning strikes with least value of density of strikes.
arxiv  

Ocular involvement in newly diagnosed pediatric leukemia: A systematic review and meta‐analysis

open access: yesPediatric Investigation, EarlyView.
The global prevalence of ocular involvement in pediatric leukemia is estimated to be 20.32%, which is more common than previously recognized. Given the high rate of asymptomatic involvement, screening for all newly diagnosed leukemia patients is recommended.
Kristina Nazzicone   +5 more
wiley   +1 more source

Log-Gaussian Cox Process Modeling of Large Spatial Lightning Data using Spectral and Laplace Approximations [PDF]

open access: yesarXiv, 2021
Lightning is a destructive and highly visible product of severe storms, yet there is still much to be learned about the conditions under which lightning is most likely to occur. The GOES-16 and GOES-17 satellites, launched in 2016 and 2018 by NOAA and NASA, collect a wealth of data regarding individual lightning strike occurrence and potentially ...
arxiv  

The Effect of Seductive Details on Knowledge Retention in Physics Videos: A Mixed Methods Study

open access: yesJournal of Research in Science Teaching, EarlyView.
ABSTRACT Research reports that interesting but irrelevant information, seductive details, in teaching material can impede learning. In science education, the inclusion of historical narratives in lessons to promote interest has been recommended but may hinder learning.
Richard Brock   +2 more
wiley   +1 more source

Multi-scale Residual Transformer for VLF Lightning Transients Classification [PDF]

open access: yesarXiv, 2023
The utilization of Very Low Frequency (VLF) electromagnetic signals in navigation systems is widespread. However, the non-stationary behavior of lightning signals can affect VLF electromagnetic signal transmission. Accurately classifying lightning signals is important for reducing interference and noise in VLF, thereby improving the reliability and ...
arxiv  

Kalman Filter and Wavelet Cross-correlation for VHF Broadband Interferometer Lightning Mapping [PDF]

open access: yes, 2020
A lightning mapping system based on perpendicular crossed baseline interferometer (ITF) technology has been developed rapidly in recent years. Several processing methods have been proposed to estimate the temporal location and spatial map of lightning strikes.
arxiv   +1 more source

Perceptions of French and Creole Among First-Generation Adult Haitian English Language Learners [PDF]

open access: yes, 2013
Context: Due to a unique combination of factors, outdoor athletes in the Southeastern United States are at high risk of lightning deaths and injuries. Lightning detection methods are available to minimize lightning strike victims.
Abadeer, Sonya S.   +3 more
core   +1 more source

Storying Performance: Disrupting Disciplinary Narratives in Drama, Theatre, and Performance Histories

open access: yesNew Directions for Teaching and Learning, EarlyView.
ABSTRACT This chapter simultaneously tells a story and examines the process of storytelling as it shares ideas about the decolonization of drama, theatre, and performance provoked by participating in a Disrupting interview process that included an individual interview and a land‐based medicine walk.
Kelsey Jacobson
wiley   +1 more source

Retrospective Observation of Ball Lightning [PDF]

open access: yesarXiv, 2022
Ball lightning is a very rarely observed phenomenon that makes it extremely difficult to characterize scientifically. Eye-witness accounts of ball lightning that describe many features in common have been variously recorded for centuries. This note is an account of my observation of ball lightning almost five decades ago.
arxiv  

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