Results 81 to 90 of about 3,790,950 (369)

Neutrino lines from DM decay induced by high-scale seesaw interactions

Journal of High Energy Physics, 2021
If the stability of the dark matter (DM) particle is due to an accidental symmetry, nothing prevents UV physics from destabilising it by inducing DM decays suppressed by powers of the UV scale.
Rupert Coy, Thomas Hambye
doaj   +1 more source

Intensity and duration of physical efforts in Physical Education classes.

Revista de saude publica, 2012
OBJETIVO: Evaluar la intensidad y la duración de los esfuerzos físicos en clases de Educación Física en la enseñanza básica y media. MÉTODOS: Estudio transversal de base escolar por medio de observación de 218 clases de Educación Física, incluyendo un total de 272 estudiantes (evaluados tres veces cada uno).
Kremer, Marina Marques, Reichert, Felipe Fossati, Hallal, Pedro Curi   +2 more
openaire   +3 more sources

Data-Intensive Physics Analysis in Azure Cloud

, 2022
The Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) is one of the largest data producers in the scientific world, with standard data products centrally produced, and then used by often competing teams within the collaboration. This work is focused on how a local institution, University of California San Diego (UCSD), partnered
Sfiligoi, Igor, Würthwein, Frank, Davila, Diego   +2 more
openaire   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Learning science through a collaborative invention project in primary school

Disciplinary and Interdisciplinary Science Education Research, 2023
The study examines students’ disciplinary learning in physics and interdisciplinary science learning opportunities that students encounter during a collaborative invention project. Thirteen student teams (aged 11 to 12, N = 46) designed and constructed a
Kati Sormunen, Saara Vehmaa, Pirita Seitamaa-Hakkarainen, Jari Lavonen, Kai Hakkarainen, Kalle Juuti   +5 more
doaj   +1 more source

Extremely high-intensity laser interactions with fundamental quantum systems [PDF]

, 2011
The field of laser-matter interaction traditionally deals with the response of atoms, molecules, and plasmas to an external light wave. However, the recent sustained technological progress is opening up the possibility of employing intense laser ...
A. Piazza, C. Müller, K. Hatsagortsyan, C. Keitel   +3 more
semanticscholar   +1 more source

Cognitive endurance after intense physical effort

Behavioural Brain Research
Previous research has primarily examined the effects of cognitive exertion on subsequent physical performance, yet the reciprocal relationship—how intense physical exercise influences cognitive endurance—remains largely unexplored. This study investigated the behavioral, subjective, and neurophysiological effects of maximal aerobic effort on sustained ...
Darias Holgado, Ludovic Leubaz, Paolo Ruggeri, Guillermo Borragán, Antonio Luque-Casado, Tristan A. Bekinschtein, Daniel Sanabria, Nicolas Place   +7 more
openaire   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Extreme focusing of hard X-ray free-electron laser pulses enables 7 nm focus width and 1022 W cm−2 intensity

Nature Photonics
By illuminating matter with bright and intense light, researchers gain insights into material composition and properties. In the regime of extremely short wavelengths, X-ray free-electron lasers (XFELs) with exceptional peak brilliance have unveiled ...
J. Yamada, S. Matsuyama, Ichiro Inoue, T. Osaka, Takato Inoue, Nami Nakamura, Yuto Tanaka, Y. Inubushi, T. Yabuuchi, Kensure Tono, K. Tamasaku, H. Yumoto, T. Koyama, H. Ohashi, M. Yabashi, K. Yamauchi   +15 more
semanticscholar   +1 more source