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https://www.readbyqxmd.com/read/28642390/tallying-the-tropical-toll-on-trees-from-lightning
#1
Michael Price
No abstract text is available yet for this article.
June 23, 2017: Science
https://www.readbyqxmd.com/read/28616016/neurological-and-neuropsychological-consequences-of-electrical-and-lightning-shock-review-and-theories-of-causation
#2
REVIEW
Christopher J Andrews, Andrew D Reisner
Injuries from lightning and electrical injuries involve multiple systems of the body, however neurological symptoms are very widely reported. A disabling neuropsychological syndrome is also noted. This paper presents a comprehensive review of neurological and neuropsychological symptoms. Partial theories of causation for these injuries have been advanced, however, there is no convincing explanation for both delay in onset of symptoms and also the genesis of the neuropsychological syndrome. A theory of causation is proposed which satisfies both these constraints...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28615706/channel-branching-and-zigzagging-in-negative-cloud-to-ground-lightning
#3
Rubin Jiang, Xiushu Qie, Hongbo Zhang, Mingyuan Liu, Zhuling Sun, Gaopeng Lu, Zhichao Wang, Yu Wang
A fundamental question in lightning flash concerns why the discharge channel propagates in a zig-zag manner and produces extensive branches. Here we report the optical observation of two negative cloud-to-ground lightning discharges with very high temporal resolution of 180,000 frames per second, which shows in detail the dependence of channel branching and tortuous behavior on the stepping process of the leader development. It is found that the clustered space leaders formed in parallel ahead of the channel tip during an individual step process...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28570332/environmental-neurologic-injuries
#4
Rodolfo Savica
PURPOSE OF REVIEW: This article discusses neurologic complications resulting from environmental injuries and the treatment modalities for these conditions. RECENT FINDINGS: Recent advances include improved management of altitude sickness. Relatively uncommon conditions, such as keraunoparalysis (lightning-induced paralysis) and high-pressure neurologic syndrome, are areas of ongoing study. SUMMARY: Environmental injuries may be associated with serious neurologic sequelae...
June 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28570306/analysis-of-electrocardiograms-associated-with-pediatric-electrical-burns
#5
Jennifer S McLeod, Alison E Maringo, Patrick J Doyle, Lisa Vitale, Justin D Klein, Christina M Shanti
The purpose of this study was to examine the utility of electrocardiograms (EKGs) for low-risk, low-voltage pediatric electrical burn victims. A retrospective chart review was conducted on 86 pediatric patients who presented to the children's hospital between 2000 and 2015 after sustaining electrical burns. Variables included source and estimated voltage, extent of injuries, length of stay, high risk factors, and EKG results. High risk factors included estimated voltage > 1000 V, lightning, tetany, symptoms, loss of consciousness, or seizures...
May 26, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28558424/on-the-biophysical-mechanism-of-sensing-atmospheric-discharges-by-living-organisms
#6
Dimitris J Panagopoulos, Alfonso Balmori
Atmospheric electrical discharges during thunderstorms, and the related electromagnetic fields (EMFs)/waves called sferics, can be sensed by humans at long distances through a variety of symptoms, mainly headache, fatigue, etc. Up to today there is no explanation for this association. Sferics consist of partially polarized electromagnetic pulses with an oscillating carrier signal in the very low frequency (VLF) band and a pulse repetition frequency in the extremely low frequency (ELF) band. Their ELF intensity may reach ~5mV/m at global ranges, and ~0...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28523435/cutaneous-manifestations-of-lightning-strike-variability-in-lichtenberg-figures
#7
Roger W Byard, Min Thu, John D Gilbert
No abstract text is available yet for this article.
May 18, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28495341/estimation-of-the-prevalence-of-adverse-drug-reactions-from-social-media
#8
Thin Nguyen, Mark E Larsen, Bridianne O'Dea, Dinh Phung, Svetha Venkatesh, Helen Christensen
This work aims to estimate the degree of adverse drug reactions (ADR) for psychiatric medications from social media, including Twitter, Reddit, and LiveJournal. Advances in lightning-fast cluster computing was employed to process large scale data, consisting of 6.4 terabytes of data containing 3.8 billion records from all the media. Rates of ADR were quantified using the SIDER database of drugs and side-effects, and an estimated ADR rate was based on the prevalence of discussion in the social media corpora...
June 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/28480142/isolated-teeth-of-anhangueria%C3%A2-pterosauria-pterodactyloidea-from-the-lower-cretaceous-of-lightning-ridge-new-south-wales-australia
#9
Tom Brougham, Elizabeth T Smith, Phil R Bell
The fossil record of Australian pterosaurs is sparse, consisting of only a small number of isolated and fragmentary remains from the Cretaceous of Queensland, Western Australia and Victoria. Here, we describe two isolated pterosaur teeth from the Lower Cretaceous (middle Albian) Griman Creek Formation at Lightning Ridge (New South Wales) and identify them as indeterminate members of the pterodactyloid clade Anhangueria. This represents the first formal description of pterosaur material from New South Wales...
2017: PeerJ
https://www.readbyqxmd.com/read/28480125/the-most-effective-methods-for-delivering-severe-weather-early-warnings-to-fishermen-on-lake-victoria
#10
Richard Tushemereirwe, Doreen Tuhebwe, Mary Ann Cooper, Florence Mutonyi D'ujanga
Introduction: It is estimated that five thousand people die on Lake Victoria every year by drowning which is triggered by severe weather hazards like lightning. Objectives:  In order to improve predictability of severe weather conditions on Lake Victoria, there is need to deliver timely and effective Severe Weather Early Warning Systems (SWEWS) to those at risk. On Lake Victoria, previous SWEW service trials ceased with the end of the funding grants. This study therefore assessed the possibility of sustaining the SWEW service by assessing willingness to pay...
February 22, 2017: PLoS Currents
https://www.readbyqxmd.com/read/28473543/new-crop-pest-takes-africa-at-lightning-speed
#11
Erik Stokstad
No abstract text is available yet for this article.
May 5, 2017: Science
https://www.readbyqxmd.com/read/28468350/field-measurements-of-sop-transients-in-opgw-with-time-and-location-correlation-to-lightning-strikes
#12
Douglas Charlton, Steven Clarke, David Doucet, Maurice O'Sullivan, Daniel L Peterson, Darryl Wilson, Glenn Wellbrock, Michel Bélanger
We monitored the state of polarization (SOP) of polarized light in an optical ground wire (OPGW) link located in North America using a test method and apparatus that measured Stokes space angular velocity and geographic location of SOP transients. We observed transients up to 5.1 Mrad/s and were able to correlate these events in both time and location to lightning strikes documented by the United States Precision Lightning Network (USPLN).
May 1, 2017: Optics Express
https://www.readbyqxmd.com/read/28467585/variations-in-otological-presentation-of-lightning-strike-victims-clinical-report-of-3-patients
#13
Erbil Kılıç, Hakan Genç, Ümit Aydın, Burak Aşık, Bülent Satar
Lightning strike can cause fatal or nonfatal injuries. Some nonfatal injuries are associated with otological symptoms and findings. Conductive hearing loss due to rupture of the tympanic membrane is the most common audiovestibular lesion of lightning strike. Various forms of sensorineural hearing loss and dizziness have also been reported. Presently described are 3 cases of lightning strike injury. First patient had mid-frequency hearing loss in right ear and high frequency sensorineural hearing loss in left ear...
March 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28465545/on-the-initiation-of-lightning-in-thunderclouds
#14
Ashot Chilingarian, Suren Chilingaryan, Tigran Karapetyan, Lev Kozliner, Yeghia Khanikyants, Gagik Hovsepyan, David Pokhsraryan, Suren Soghomonyan
The relationship of lightning and elementary particle fluxes in the thunderclouds is not fully understood to date. Using the particle beams (the so-called Thunderstorm Ground Enhancements - TGEs) as a probe we investigate the characteristics of the interrelated atmospheric processes. The well-known effect of the TGE dynamics is the abrupt termination of the particle flux by the lightning flash. With new precise electronics, we can see that particle flux decline occurred simultaneously with the rearranging of the charge centers in the cloud...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28459967/survival-and-electrotransformation-of-pseudomonas-syringae-strains-under-simulated-cloud-like-conditions
#15
Laurine S Blanchard, Anaïs Monin, Hounaïda Ouertani, Lamia Touaibia, Elisa Michel, François Buret, Pascal Simonet, Cindy E Morris, Sandrine Demanèche
To diversify their genetic material, and thereby allow adaptation to environmental disturbances and colonization of new ecological niches, bacteria use various evolutionary processes, including the acquisition of new genetic material by horizontal transfer mechanisms such as conjugation, transduction and transformation. Electrotransformation mediated by lightning-related electrical phenomena may constitute an additional gene-transfer mechanism occurring in nature. The presence in clouds of bacteria such as Pseudomonas syringae capable of forming ice nuclei that lead to precipitation, and that are likely to be involved in triggering lightning, led us to postulate that natural electrotransformation in clouds may contribute to the adaptive potential of these bacteria...
May 1, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28370371/a-critical-evaluation-of-the-historical-fire-regime-concept-in-conservation
#16
REVIEW
Johanna Freeman, Leda Kobziar, Elizabeth White Rose, Wendell Cropper
Prescribed fire has gained widespread acceptance as a conservation tool, due to the recognition that fire is a process essential to the maintenance of native biodiversity in many terrestrial communities. Approaches to developing fire prescriptions vary greatly between continents, but scientists and practitioners stand to benefit from knowledge sharing across world regions. In North America, decisions about how and when to apply prescribed fire are typically based on the historical fire regime concept (HFRC), which holds that replicating the pattern of fires ignited by lightning and/or pre-industrial humans will best promote native species in fire-prone regions...
March 31, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28357174/production-mechanisms-of-leptons-photons-and-hadrons-and-their-possible-feedback-close-to-lightning-leaders
#17
Christoph Köhn, Gabriel Diniz, Muhsin N Harakeh
It has been discussed that lightning flashes emit high-energy electrons, positrons, photons, and neutrons with single energies of several tens of MeV. In the first part of this paper we study the absorption of neutron beams in the atmosphere. We initiate neutron beams of initial energies of 350 keV, 10 MeV, and 20 MeV at source altitudes of 4 km and 16 km upward and downward and see that in all these cases neutrons reach ground altitudes and that the cross-section areas extend to several km(2). We estimate that for terrestrial gamma-ray flashes approximately between 10 and 2000 neutrons per ms and m(2) are possibly detectable at ground, at 6 km, or at 500 km altitude...
January 27, 2017: Journal of Geophysical Research. Atmospheres: JGR
https://www.readbyqxmd.com/read/28323083/new-signs-to-encourage-the-use-of-automated-external-defibrillators-by-the-lay-public
#18
Christopher M Smith, Michael C Colquhoun, Marc Samuels, Mark Hodson, Sarah Mitchell, Judy O'Sullivan
INTRODUCTION: Public Access Defibrillation - the use of Automated External Defibrillators (AEDs) by lay bystanders before the arrival of Emergency Medical Services - is an important strategy in delivering prompt defibrillation to victims of out-of-hospital cardiac arrest and can greatly improve survival rates. Such public-access AEDs are used rarely: one barrier might be poor understanding and content of current signage to indicate their presence. The aim of this project was to develop a sign, with public consultation, that better indicated the function of an AED, and an associated poster to encourage its use...
March 18, 2017: Resuscitation
https://www.readbyqxmd.com/read/28322263/causal-mechanisms-of-seismo-em-phenomena-during-the-1965-1967-matsushiro-earthquake-swarm
#19
Yuji Enomoto, Tsuneaki Yamabe, Nobuo Okumura
The 1965-1967 Matsushiro earthquake swarm in central Japan exhibited two unique characteristics. The first was a hydro-mechanical crust rupture resulting from degassing, volume expansion of CO2/water, and a crack opening within the critically stressed crust under a strike-slip stress. The other was, despite the lower total seismic energy, the occurrence of complexed seismo-electromagnetic (seismo-EM) phenomena of the geomagnetic intensity increase, unusual earthquake lights (EQLs) and atmospheric electric field (AEF) variations...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28269072/development-of-a-head-phantom-and-measurement-setup-for-lightning-effects
#20
Rene Machts, Alexander Hunold, Carsten Leu, Jens Haueisen, Michael Rock
Direct lightning strikes to human heads lead to various effects ranging from Lichtenberg figures, over loss of consciousness to death. The evolution of the induced current distribution in the head is of great interest to understand the effect mechanisms. This work describes a technique to model a simplified head-phantom to investigate effects during direct lightning strike. The head-phantom geometry, conductive and dielectric parameters were chosen similar to that of a human head. Three layers (brain, skull, and scalp) were created for the phantom using agarose hydrogel doped with sodium chloride and carbon...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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