Results 81 to 90 of about 305,222 (282)

The Architecture of Large Kurgans of the Scythians and Their Periphery: A Challenge for Magnetometer Prospections in the Eurasian Steppe Belt

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The burial mounds of the early Iron Age, which we will refer to below as kurgans, from the nomadic equestrian warriors of Eurasia, form a very complex group of archaeological monuments. Archaeological excavations in Aržan 2 (Siberia) and Aleksandropol (Ukraine) show that the large burial mounds are complex architectural constructions.
Jörg W. E. Fassbinder, Anton Gass
wiley   +1 more source

Assemblage of art, discourse and ice hockey: Designing knowledge about work

open access: yesJournal of Sociolinguistics, Volume 26, Issue 5, Page 553-567, November 2022., 2022
Abstract This article examines speculative design's capacity to co‐produce knowledge about contradictions and potentialities of work in professional ice hockey. Building on the Deleuzian concept of assemblage, speculative design has been used for two purposes: (a) to bring together the perspectives of art, anthropology, discourse studies, and ...
Sari Pietikäinen
wiley   +1 more source

ECG changes of lightning strike, mimicking acute myocardial infarction

open access: yesIHJ Cardiovascular Case Reports, 2018
Lightning strike can cause injuries which are of no significance to fatal injuries or instantaneous death. Very few cases have been reported on ECG changes due to lightning strike.
Rajeev Bhardwaj
doaj  

On the effect of lightning on a solar photovoltaic system [PDF]

open access: yes, 2016
A solar PV system was modelled and the effect of lightning striking different parts of a solar PV system was studied and the results discussed appropriately. Lightning strikes of different wave shapes and different magnitudes were considered. The purpose
Ab Kadir, Mohd Zainal Abidin   +6 more
core   +1 more source

A Straight Lightning Bolt?! Observation of a Predicted Macro Dark Matter Signature [PDF]

open access: yesarXiv, 2022
Recently, four remarkably straight very brief flashes of light were captured on video in Perth, Australia within 0.5s of one another. Straight lightning was recently identified as a prediction of macroscopic dark matter (macros) -- a broad class of alternative candidates to particle dark matter. A sufficiently large macro passing through the atmosphere
arxiv  

The US Adventure in Western Sahara: From Ford to Trump

open access: yesMiddle East Policy, Volume 29, Issue 4, Page 82-90, Winter 2022., 2022
Abstract This article analyzes the involvement of American governments in the Moroccan war against the Polisario Front, from the Ford administration to the Trump presidency. The consultation of primary sources clarifies particular aspects of this involvement and indicates the role each actor has played in this conflict.
Domingo Garí
wiley   +1 more source

A Self-Consistent Return Stroke Model That Includes the Effect of the Ground Conductivity at the Strike Point

open access: yesAtmosphere, 2022
A current generation type return stroke model which can take into account the possible modifications of the return stroke properties by the soil conductivity at the strike point of the lightning flash is introduced.
Vernon Cooray   +2 more
doaj   +1 more source

Visual representations of energy and chemical bonding in biology and chemistry textbooks: A case study of ATP hydrolysis

open access: yesBiochemistry and Molecular Biology Education, EarlyView.
Abstract Energy is a crosscutting concept in science, but college students often perceive a mismatch between how their biology and chemistry courses discuss the topic. The challenge of reconciling these disciplinary differences can promote faulty reasoning—for example, biology students often develop the incorrect idea that breaking bonds is exothermic ...
Mingyu Yang   +3 more
wiley   +1 more source

Impacts of Lightning-Induced Overvoltage on a Hybrid Solar PV–Battery Energy Storage System

open access: yesApplied Sciences, 2021
With increased electrical energy demands projected in the future, the development of a hybrid solar photovoltaic (PV)–battery energy storage system is considered a good option. However, since such systems are normally installed outdoors and in open areas,
Nor Izzati Ahmad   +5 more
doaj   +1 more source

Antitumor efficacy of intermittent low‐dose erlotinib plus sulindac via MHC upregulation and remodeling of the immune cell niche

open access: yesInternational Journal of Cancer, EarlyView.
What's New? Novel immunomodulatory insights derived from experimental models and clinical samples reveal the cancer‐preventive potential of intermittent low‐dose erlotinib plus sulindac (ERL + SUL). This study shows that ERL + SUL treatment upregulates MHC class I and II expression and remodels the immune cell niche, with significant tumor suppression ...
Chakrapani Tripathi   +17 more
wiley   +1 more source

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