Results 41 to 50 of about 2,486,308 (363)
Studies on the frequency of Sun-spots, and on their connexion with the Magnetic Declination-variation. (Translation.) [PDF]
Rudolf Wolf
openalex +2 more sources
On the basis of a written document from the early 19th century, the boundary line of the dacha of the village Rasskazovo was reconstructed. The purpose of this research is to decipher the Boundary Book of 1811, present its text in electronic form, and ...
A. V. Sayapin, N. B. Moiseyev
doaj +1 more source
Cluster Analysis of Extremely High Energy Cosmic Rays in the Northern Sky
The arrival directions of extremely high energy cosmic rays (EHECR) above $4\times10^{19}$ eV, observed by four surface array experiments in the northern hemisphere,are examined for coincidences from similar directions in the sky.
A.A Watson +19 more
core +1 more source
Ultra-high energy cosmic rays: are they isotropic? [PDF]
From the analysis of AGASA data above $4 \times 10^{19}$ eV, we show that the ultra-high energy cosmic rays flux is neither purely isotropic, nor reflects the expected anisotropy from a pure source distribution that maps large scale structure in the ...
Medina-Tanco, Gustavo
core +2 more sources
Origin of Small-Scale Anisotropies in Galactic Cosmic Rays
The arrival directions of Galactic cosmic rays (CRs) are highly isotropic. This is expected from the presence of turbulent magnetic fields in our Galactic environment that repeatedly scatter charged CRs during propagation.
Ahlers, Markus, Mertsch, Philipp
core +1 more source
The Harold C. Ernst Collection of Portable Sundials [PDF]
A catalog of sundials from the Harold C. Ernst Collection of Portable Sundials, and a handy reference book on the subject of portable sundials. The sundial is the most ancient scientific instrument to come down to us unchanged.
Mayall, Margaret W., Mayall, R. Newton
core +1 more source
The reduction of geomagnetic data for the territory of Latvia to the epoch 2021.5
The article describes the sources of geomagnetic data, the reduction of geomagnetic data for the territory of Latvia to the epoch 2021.5, the history of previous magnetic observations in Latvia, the information available in the State Geodetic Network ...
Lubova Sulakova, Janis Kaminskis
doaj +1 more source
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez +13 more
wiley +1 more source
Semiautomatic sun shots with the WIDIF DIflux [PDF]
The determination of magnetic declination angle entails finding two directions: geographic north and magnetic north. This paper deals with the former.
J. L. Rasson, O. Hendrickx, J.-L. Marin
doaj +1 more source
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié +16 more
wiley +1 more source

