Results 41 to 50 of about 16,000,889 (256)

Subgraphs of the projective norm graph

Forum of Mathematics, Sigma
The limited dependence between the additive and the multiplicative structure of fields is in the background of a number of explicit constructions of various types of pseudorandom objects.
Tomas Bayer, Tamás Mészáros, Lajos Rónyai, Tibor Szabó   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Terraced fields with trees

, 1898
The photograph is shot from a higher path, looking down into a valley with groups of structures and a village; many (fruit?) trees are in bloom, and there are terraced fields throughout the valley; steep cliffs surround the valley.
Drake, N. F. (Noah Fields), 1864-1945
core   +1 more source

Global flows of foliated gravity-matter systems

Physics Letters B
Asymptotic safety is a promising mechanism for obtaining a consistent and predictive quantum theory for gravity. The ADM formalism allows to introduce a (Euclidean) time-direction in this framework.
Guus Korver, Frank Saueressig, Jian Wang
doaj   +1 more source

The Study of ECG Changes in Humans Exposed to 50 Hz Electromagnetic Fields [PDF]

Iranian Journal of Medical Physics, 2007
Introduction: It has been reported that cardiovascular effects are among the possible health effects of being exposed to extremely low frequency electromagnetic fields (ELF EMSs).
Seyed Ali Saiedi Zadeh, Parvin Nassiri, Hojjat Zeraati, Rahmatollah Jahangiri   +3 more
doaj   +1 more source

Algebraic divisibility sequences over function fields [PDF]

, 2011
In this note we study the existence of primes and of primitive divisors in function field analogues of classical divisibility sequences. Under various hypotheses, we prove that Lucas sequences and elliptic divisibility sequences over function fields ...
Mahe, Valery, Ingram, Patrick, Valéry Mahé, Marco Streng, Streng, T.C., Patrick Ingram, Streng, Marco, Katherine E. Stange, Stange, K.E., Silverman, Joseph H., Mahé, V., Joseph H. Silverman, Silverman, J.H., Ingram, P., Stange, Katherine E.   +14 more
core   +2 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Fronsdal fields from gauge functions in Vasiliev’s higher spin gravity

Journal of High Energy Physics, 2019
In this paper, we revisit a number of issues in Vasiliev’s theory related to gauge functions, ordering schemes, and the embedding of Fronsdal fields into master fields.
David De Filippi, Carlo Iazeolla, Per Sundell   +2 more
doaj   +1 more source

Effects of Electromagnetic Fields with Frequencies Lower Than 50 Hz and Intensity of 50 μT on Learning and Memory [PDF]

Iranian Journal of Medical Physics, 2009
Introduction: Biological effects of magnetic fields have been investigated by scientists for many years and a vast amount of research using different frequencies and intensities have been performed on humans and laboratory animals.
Gholamreza Hamzavi, Karim Rastegar, Asad-Allah Zarifkar, Mehdi Movahedi   +3 more
doaj   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source