Results 51 to 60 of about 112,475 (200)
On the classifications of the solar active regions (ARs); Case study for solar cycles 23 and 24
Egyptian Journal of Remote Sensing and Space Sciences, 2018 The declining phase of solar cycle 23 is an important case of study. Many high energetic solar flares occurred in 2003. The occurrence of high energetic solar X-ray flares (X-type) is related to solar cycle’s phases and the state of the active regions ...
Wael Mohamed +2 more
doaj
Distribution of low-power solar flares by brightness rise time
Solar-Terrestrial Physics, 2018 Using data from the international flare patrol for 1972–2010, we have formed an electronic database for more than 123 thousand solar flares. We determined the mean brightness rise time (flash phase) for flare area classes and importance. We show that the
Borovik A.V., Zhdanov A.A.
doaj +1 more source
Properties of Flares-Generated Seismic Waves on the Sun [PDF]
, 2005 The solar seismic waves excited by solar flares (``sunquakes'') are observed as circular expanding waves on the Sun's surface. The first sunquake was observed for a flare of July 9, 1996, from the Solar and Heliospheric Observatory (SOHO) space mission.
arxiv +1 more source
Impact of particulate matter exposure on melanoma risk: A multicentre case–control study
Journal of the European Academy of Dermatology and Venereology, EarlyView.Long‐term exposure to higher levels of PM10 and PM2.5 may have a protective effect against melanoma, potentially due to the reduction in ultraviolet radiation. Abstract Background The relationship between particulate matter (PM) exposure and melanoma risk remains largely unexplored.
Francesco Bellinato +8 more
wiley +1 more source
Journal of Time Series Analysis, EarlyView.ABSTRACT The prediction of extreme events in time series is a fundamental problem arising in many financial, scientific, engineering, and other applications. We begin by establishing a general Neyman–Pearson‐type characterization of optimal extreme event predictors in terms of density ratios.
Victor Verma, Stilian Stoev, Yang Chen
wiley +1 more source
Remote Sensing, 2023 The influence of solar activity on the ionosphere, a critical area of investigation due to its relevance to the Sun–Earth relationship, has been extensively examined through various methodologies.
Charbeth López-Urias +3 more
doaj +1 more source
Risk Analysis, EarlyView.Abstract There are two separate conceptualizations for assessing existential risks: Planetary Boundaries (PBs) and global catastrophic risks (GCRs). While these concepts are similar in principle, their underpinning literatures tend not to engage with each other.
Eoin McLaughlin, Matthias Beck
wiley +1 more source
Embracing the politics of transformation: Policy action as “battle‐settlement events”
Review of Policy Research, EarlyView.Abstract Societal transformations for addressing climate change are intensely contested and at risk of resistance and backlash to ambitious policy action. But they are frequently modeled through heuristics such as S‐curves which abstract from such conflicts, assuming increasing returns to scale as a driver of transformations.
James Patterson, Matthew Paterson
wiley +1 more source
High Power Laser Science and Engineering, 2013 The driving mechanism of solar flares and coronal mass ejections is a topic of ongoing debate, apart from the consensus that magnetic reconnection plays a key role during the impulsive process.
Quanli Dong +22 more
doaj +1 more source
Revista Brasileira de Computação Aplicada, 2020 Some phenomena that occur in the Sun have consequences on Earth. Among these phenomena, solar flares release large amounts of radiation and energy that impact on Earth's life and technological systems.
Letícia Sousa de Oliveira +1 more
doaj +1 more source