Results 71 to 80 of about 7,713 (173)

Study of Some Radiological Parameters in Tobacco leaves of Iraq

open access: yesJournal of Kufa-Physics, 2016
In present work radioactivity measurements of radionuclides to (226Ra,232Th and 40K) and Some Radiological Parameters of (14) tobacco leaves samples that available in Iraq markets was determined using NaI (TI).
Hayder Hamza Hussain   +1 more
doaj  

Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 3, Page 466-486, March 2026.
Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff   +18 more
wiley   +1 more source

A metastable state at 1.64 MeV in 40K

open access: yesPhysics Letters B, 1968
Abstract The mean lifetime of the 1.64 MeV level in 40 K has been measured as 0.49 ± 0.01 μ s, and its decay scheme determined. From the results it is argued that the most probable spin and parity for the level are J π = 0 + . The experiment simultaneously yielded a value of 0.63 ± 0.02 μ s for the mean lifetime of the first excited state of
I.G. Main   +5 more
openaire   +1 more source

Al‐Khadhaf: The first camera‐observed (H5–6) meteorite fall from Oman

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 3, Page 522-547, March 2026.
Abstract A fireball camera system installed in 2022 by the Oman Meteorite Monitoring Project (OMMP) as part of the Global Fireball Observatory (GFO) recorded a 3.2 s fireball on March 8, 2022 at 8:15 p.m. UTC. A meteoroid of 4 ± 2 kg entered the atmosphere at 14.0 km/s.
Anna Zappatini   +18 more
wiley   +1 more source

Radionuclide concentration in cabbage samples due to gamma radiation in Samsun, Turkey

open access: yesEPJ Web of Conferences, 2016
Establishing of radioactivity planes in foodstuff has emphasis because it allows the evaluation of population exposure to radiation by take nourishment. In this paper, the activity concentrations of 226Ra, 232Th, 40K and 137Cs were determined in cabbage ...
Altıkulaç Aydan, Gümüş Hasan
doaj   +1 more source

Assessment of radiological risk in the area around surface disposal at Al -Tuwaitha site

open access: yesIraqi Journal of Physics, 2019
The gamma dose rates and specific activity of 137Cs, 60Co and 40K in samples of soil taken from places near the landfill radiation at Al- Tuwaitha site were measured using a portable NaI(Tl) detector.
Asia H. Al-Mashhadani
doaj   +1 more source

40K-39K ratio of cubic diamond from Zaire.

open access: yesGEOCHEMICAL JOURNAL, 1988
No anomaly was observed in the isotopic composition of potassium in the Zaire cubic diamonds, which show a K-Ar isochron-like relationship corresponding to 6.0 Gyr (Zashu et al., 1986).
Tasuku Akagi, Akimasa Masuda
openaire   +2 more sources

Biological effects of background radiation: mutagenicity of 40K.

open access: yesProceedings of the National Academy of Sciences, 1985
The naturally occurring radioactive isotope 40K is the single largest contributor to the internal background radiation dose in living organisms. We examined cell growth and mutation rate or frequency in several strains of Escherichia coli in (i) media containing the natural content of 40K, (ii) media containing potassium from which essentially all of ...
D, Gevertz   +3 more
openaire   +3 more sources

Nosema ceranae Can Infect Honey Bee Larvae and Reduces Subsequent Adult Longevity.

open access: yesPLoS ONE, 2015
Nosema ceranae causes a widespread disease that reduces honey bee health but is only thought to infect adult honey bees, not larvae, a critical life stage.
Daren M Eiri   +3 more
doaj   +1 more source

Annual Reports to the ESA Council ESA 110th Annual Meeting July, 2025

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
wiley   +1 more source

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