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Lightning strike

Y Nouma, W Ben Amar, M Zribi, S Bardaa, Z Hammami, S Maatoug
We report a case of a Tunisian footballer who was found dead abroad under suspicious circumstances. The cause of death was, originally, attributed to a lightning strike. The corpse was buried without/autopsy. Over thirty years later, the family requested the exhumation to verify the identity and the cause of death. The exhumation was performed in 2011. DNA profiling from teeth and femur bone samples confirmed the identity of the deceased. The dry bone study revealed defects in the skull and the pelvis evoking firearm injuries...
October 11, 2016: Journal of Forensic and Legal Medicine
Lynette Mary Ann Silva, Mary Ann Cooper, Ryan Blumenthal, Neil Pliskin
BACKGROUND: On 11 November 1994, 26 preadolescent girls, 2 adult supervisors and 7 dogs were sleeping in a tent in rural South Africa when the tent was struck by lightning. Four of the girls and 4 of the dogs were killed. The 2 adults were unharmed, but all but 3 of the children suffered significant injuries. An article in 2002 detailed the event and examined the medical and psychological changes in the surviving girls. OBJECTIVE: To understand the medical and psychological changes secondary to lightning strike years after injury...
September 2016: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
Elizabeth Mills
Based on multi-sited ethnographic fieldwork in South Africa, this article explores the skies that fight, the proverbial lightning strikes that bring HIV into women's lives and bodies. Departing from earlier studies on ARV programmes in and beyond South Africa, and broadening out to explore the chronic struggle for life in a context of entrenched socio-economic inequality, this article presents findings on women's embodiment of and strategic resistance to structural and interpersonal violence. These linked forms of violence are discussed in light of the concept of precarity...
May 2016: Reproductive Health Matters
Matthew A Pasek, Marc Hurst
When lightning strikes soil, it may generate a cylindrical tube of glass known as a fulgurite. The morphology of a fulgurite is ultimately a consequence of the energy of the lightning strike that formed it, and hence fulgurites may be useful in elucidating the energy distribution frequency of cloud-to-ground lightning. Fulgurites from sand mines in Polk County, Florida, USA were collected and analyzed to determine morphologic properties. Here we show that the energy per unit length of lightning strikes within quartz sand has a geometric mean of ~1...
2016: Scientific Reports
Dane Scantling, Brian Frank, Mathew E Pontell, Sandra Medinilla
Only limited clinical scenarios are grounds for induction of therapeutic hypothermia. Its use in traumatic cardiac arrests, including those from lightning strikes, is not well studied. Nonshockable cardiac arrest rhythms have only recently been included in resuscitation guidelines. We report a case of full neurological recovery with therapeutic hypothermia after a lightning-induced pulseless electrical activity cardiac arrest in an 18-year-old woman. We also review the important pathophysiology of lightning-induced cardiac arrest and neurologic sequelae, elaborate upon the mechanism of therapeutic hypothermia, and add case-based evidence in favor of the use of targeted temperature management in lightning-induced cardiac arrest...
September 2016: Wilderness & Environmental Medicine
Evgenii O Fetisov, I-Feng William Kuo, Chris Knight, Joost VandeVondele, Troy Van Voorhis, J Ilja Siepmann
Predictive modeling of reaction equilibria presents one of the grand challenges in the field of molecular simulation. Difficulties in the study of such systems arise from the need (i) to accurately model both strong, short-ranged interactions leading to the formation of chemical bonds and weak interactions arising from the environment, and (ii) to sample the range of time scales involving frequent molecular collisions, slow diffusion, and infrequent reactive events. Here we present a novel reactive first-principles Monte Carlo (RxFPMC) approach that allows for investigation of reaction equilibria without the need to prespecify a set of chemical reactions and their ideal-gas equilibrium constants...
June 22, 2016: ACS Central Science
Peter M Krummrich, David Ronnenberg, Wolfgang Schairer, Daniel Wienold, Frank Jenau, Maximilian Herrmann
Lightning events can cause fast polarization rotations and phase changes in optical transmission fibers due to strong electrical currents and magnetic fields. Whereas these are unlikely to affect legacy transmission systems with direct detection, different mechanisms have to be considered in systems with local oscillator based coherent receivers and digital signal processing. A theoretical analysis reveals that lightning events can result in polarization rotations with speeds as fast as a few hundred kRad/s...
May 30, 2016: Optics Express
Md Tanveer Adil, Rumana Rahman, Soumen Das
Superficial cutaneous burns following lightning strike may vary in patterns ranging from linear burns, punctate burns, feathering burns, and thermal burns. Contact with an extrinsic object in the pathway of lightning current can lead to disastrous consequences. The lucky who survive may show bizarre and interesting burn patterns to tell their story.
June 2016: Clinical Case Reports
Matthew C Makel, Harrison J Kell, David Lubinski, Martha Putallaz, Camilla P Benbow
The educational, occupational, and creative accomplishments of the profoundly gifted participants (IQs ⩾ 160) in the Study of Mathematically Precocious Youth (SMPY) are astounding, but are they representative of equally able 12-year-olds? Duke University's Talent Identification Program (TIP) identified 259 young adolescents who were equally gifted. By age 40, their life accomplishments also were extraordinary: Thirty-seven percent had earned doctorates, 7.5% had achieved academic tenure (4.3% at research-intensive universities), and 9% held patents; many were high-level leaders in major organizations...
July 2016: Psychological Science
Štěpánka Kučerová, Petr Hejna, Martin Dobiáš
The otoscopy is an examination of the external auditory canal, the eardrum, and the middle ear with an instrument called an otoscope. It is a simple, inexpensive, and time-saving endoscopic method typically used by general practitioners and otorhinolaryngologists. Authors present a prospective study of otoscopic findings investigated consecutively at autopsy. Of the 250 examined persons, 50 positive findings were identified: 38 cases with petechial hemorrhages and 12 cases with tympanic membrane perforation or hemotympanon...
2016: Soudní Lékarství
Kellen Galster, Ryan Hodnick, Ross P Berkeley
Injuries from lightning strikes are an infrequent occurrence, and are only rarely noted to involve pregnant victims. Only 13 cases of lightning strike in pregnancy have been previously described in the medical literature, along with 7 additional cases discovered within news media reports. This case report presents a novel case of lightning-associated injury in a patient in the third trimester of pregnancy, resulting in fetal ischemic brain injury and long-term morbidity, and reviews the mechanics of lightning strikes along with common injury patterns of which emergency providers should be aware...
June 2016: Wilderness & Environmental Medicine
C Schulze, M Peters, W Baumgärtner, P Wohlsein
Electrical injuries in animals occur most often accidentally. They comprise contact to various forms of currents, including alternating, rotary, or direct currents. Depending on various parameters of the current (including the type of circuit, voltage, current and duration of exposure) and conditions of the animal (such as wet or dry hair coat and pathway of current through the body), lesions may be absent or may include early or localized development of rigor mortis, signs of acute circulatory failure, or severe thermoelectrical burns...
September 2016: Veterinary Pathology
K M Gruhn, Frauke Knossalla, Peter Schwenkreis, Uwe Hamsen, Thomas A Schildhauer, Martin Tegenthoff, Matthias Sczesny-Kaiser
Lightning strikes rarely occur but 85 % of patients have lightning-related neurological complications. This report provides an overview about different modes of energy transfer and neurological conditions related to lightning strikes. Moreover, two case reports demonstrate the importance of interdisciplinary treatment and the spectrum of neurological complications after lightning strikes.
June 2016: Der Nervenarzt
Gerard T Flaherty, Joonkoo Choi
BACKGROUND: Photography is an integral component of the international travel experience. Self-photography is becoming a mainstream behaviour in society and it has implications for the practice of travel medicine. Travellers who take selfies, including with the use of selfie sticks, may be subject to traumatic injuries associated with this activity. This review article is the first in the medical literature to address this emerging phenomenon. METHODS: Articles indexed on PubMed and Scopus databases through 2015 were retrieved, using the search terms 'travel', combined with 'selfie', 'self-photography', 'smartphone', 'mobile phone' and 'social media'...
February 2016: Journal of Travel Medicine
Y Law, Y C Chan, S W Cheng
BACKGROUND/OBJECTIVE: This study aims to examine the relationship between weather changes and acute aortic events in a subtropical territory. METHODS: A linear regression analysis was performed in a pan-territory epidemiological survey for a period of 10 years on the impacts of meteorological factors (ambient temperature, atmospheric pressure, relative humidity, amount of cloud, rainfall, number of lightning strikes, presence of typhoon, and thunderstorm warning) on the daily incidences of acute aortic dissections and ruptured aortic aneurysms...
February 5, 2016: Asian Journal of Surgery
Gerard T Flaherty, Joseph Daly
No abstract text is available yet for this article.
January 2016: Journal of Travel Medicine
Alper Akın, Meki Bilici, Fikri Demir, Ayfer Gözü Pirinççioğlu, Ahmet Yıldırım
Lightning strikes may cause injury to the heart, ranging from slight electrocardiographic changes to fatal damage. As heart injury is the most important cause of mortality in these patients, cardiac monitoring is crucial. Even though various ECG changes have been reported, published data on pathologic ST-segment changes is scarce. Herein, we present a seven-year old patient with ST-segment elevation following a lightning strike. There is not sufficient data regarding lightning-related myocardial ischemia. However, because of the similar effects of lightning strikes and high-voltage electric shocks, we believe myocardial injury related to lightning may be managed in the same manner as is cardiac involvement associated with electric shock...
March 2015: Turkish Journal of Pediatrics
Tie-Jun Wang, Yingxia Wei, Yaoxiang Liu, Na Chen, Yonghong Liu, Jingjing Ju, Haiyi Sun, Cheng Wang, Haihe Lu, Jiansheng Liu, See Leang Chin, Ruxin Li, Zhizhan Xu
Laser based lightning control holds a promising way to solve the problem of the long standing disaster of lightning strikes. But it is a challenging project due to insufficient understanding of the interaction between laser plasma channel and high voltage electric filed. In this work, a direct observation of laser guided corona discharge is reported. Laser filament guided streamer and leader types of corona discharges were observed. An enhanced ionization took place in the leader (filament) through the interaction with the high voltage discharging field...
2015: Scientific Reports
Matteo Clerici, Yi Hu, Philippe Lassonde, Carles Milián, Arnaud Couairon, Demetrios N Christodoulides, Zhigang Chen, Luca Razzari, François Vidal, François Légaré, Daniele Faccio, Roberto Morandotti
Electric breakdown in air occurs for electric fields exceeding 34 kV/cm and results in a large current surge that propagates along unpredictable trajectories. Guiding such currents across specific paths in a controllable manner could allow protection against lightning strikes and high-voltage capacitor discharges. Such capabilities can be used for delivering charge to specific targets, for electronic jamming, or for applications associated with electric welding and machining. We show that judiciously shaped laser radiation can be effectively used to manipulate the discharge along a complex path and to produce electric discharges that unfold along a predefined trajectory...
June 2015: Science Advances
Danielle B Chau, Sean S Ciullo, Debra Watson-Smith, Thomas H Chun, Arlet G Kurkchubasche, Francois I Luks
PURPOSE: Patient-centered outcomes research (PCOR) aims to give patients a better understanding of the treatment options to enable optimal decision-making. As nonoperative alternatives are now being evaluated in children for acute appendicitis, we surveyed patients and their families regarding their knowledge of appendicitis and evaluated whether providing basic medical information would affect their perception of the disease and allow them to more rationally consider the treatment alternatives...
January 2016: Journal of Pediatric Surgery
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