Results 41 to 50 of about 25,361 (210)

Laser-produced continua for absorption spectroscopy in the VUV and XUV [PDF]

open access: yes, 1980
Recent work has shown that with appropriate targets, laser-produced plasmas provide clean essentially linefree continua suitable for absorption spectroscopy from 40 to 2000 Å.
Ballofet   +15 more
core   +1 more source

On the performance of CARISMA – Akademik Vernadsky station Schumann resonance monitoring

open access: yesУкраїнський антарктичний журнал, 2023
The main objective of this study is to evaluate the effectiveness of the CARISMA (Canadian Array for Realtime Investigations of Magnetic Activity) – Akademik Vernadsky station (65.25°S 64.25°W, Vernadsky) Extremely Low Frequency (ELF) induction ...
O. Koloskov   +2 more
doaj   +1 more source

Schumann’s resonances: A particular example of a spherical resonant cavity

open access: yesAmerican Journal of Physics, 2004
The resonances between the Earth as one boundary and the ionosphere as the other, known as Schumann’s resonances, represent an interesting example of a spherical cavity. We consider a simple model in which the boundaries behave as perfect conductors and then take into account the finite conductivity of the boundaries. Numerical results are obtained for
Ciappina, Marcelo Fabián   +1 more
openaire   +2 more sources

COMPARISON OF AIR TEMPERATURE VARIATIONS ON THE AFRICAN CONTINENT AND THE SCHUMANN RESONANCE INTENSITY BY USING LONG-TERM ANTARCTIC OBSERVATIONS

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: Correlation study of long-term seasonal variations of intensity of the global electromagnetic (Schumann) resonance in the Earth-ionosphere cavity and the air temperature for the African center of the global thunderstorm activity.
A. V. Paznukhov   +3 more
doaj   +1 more source

Electromagnetic ULF/ELF oscillations caused by the eruption of the Tonga volcano

open access: yesSolar-Terrestrial Physics, 2023
The eruption of the Tonga volcano on January 13 and 15, 2022 and related intense lightning activity led to the excitation of a number of specific electromagnetic oscillations in different frequency ranges.
Martines-Bedenko V. A.   +3 more
doaj   +1 more source

Secularism, Gender and Masculinity in Nineteenth‐Century Cremation in Europe and the USA

open access: yesGender &History, EarlyView.
ABSTRACT This essay explores, from transnational perspectives, the early history of modern cremation, which developed in the long nineteenth century with secularist connotations. I argue that the beginnings of modern cremation were shaped by bourgeois men who claimed certain identifiers for themselves in a gendering and Othering way.
Carolin Kosuch
wiley   +1 more source

Applied Engineering Using Schumann Resonance for Earthquakes Monitoring

open access: yesApplied Sciences, 2017
For populations that may be affected, the risks of earthquakes and tsunamis are a major concern worldwide. Therefore, early detection of an event of this type in good time is of the highest priority.
Jose A. Gazquez   +5 more
doaj   +1 more source

Constraining the photon mass via Schumann resonances

open access: yesPhysical Review D, 2022
الفوتون هو النموذج لجسيم عديم الكتلة، وتضع الاختبارات التجريبية الحالية حدودًا عليا شديدة على كتلته. إن التحقق من مثل هذه الكتلة الصغيرة، أو طول موجة كومبتون الكبير بشكل مكافئ، يمثل تحديًا على المستويات المختبرية، ولكن من المحتمل أن تصل الظواهر الكوكبية أو الفيزيائية الفلكية إلى حساسيات أفضل بكثير.
P. C. Malta, J. A. Helayël-Neto
openaire   +2 more sources

Psychedelics as pharmacotherapeutics for substance use disorders: A scoping review on clinical trials and perspectives on underlying neurobiology

open access: yesBritish Journal of Pharmacology, EarlyView.
Theorized mechanism of dopamine homeostasis restoration in the nucleus accumbens core induced by a psychedelic intervention. Abstract Psychedelics have garnered great attention in recent years as treatments for major depressive disorder (MDD) and treatment‐resistant depression because of their ability to alter consciousness and afflicted cognitive ...
Lucas Wittenkeller   +3 more
wiley   +1 more source

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