Results 21 to 30 of about 50,898 (280)

Nebula-Relay Hypothesis: The Chirality of Biological Molecules in Molecular Clouds

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The chiral puzzle of biological molecules is thought to be closely related to the origin of life and is still a mystery so far. Previously, we proposed a new model on the origin of life, Nebula-Relay hypothesis, which assumed that the life on Earth ...
Lei Feng, Lei Feng, Lei Feng
doaj   +1 more source

Resolving the Crab pulsar wind nebula at teraelectronvolt energies [PDF]

open access: yesNature Astronomy, 2019
The Crab nebula is one of the most-studied cosmic particle accelerators, shining brightly across the entire electromagnetic spectrum up to very-high-energy gamma rays1,2.
H. Collaboration
semanticscholar   +1 more source

Particle transport within the pulsar wind nebula HESS J1825–137 [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. We present a detailed view of the pulsar wind nebula (PWN) HESS J1825–137. We aim to constrain the mechanisms dominating the particle transport within the nebula, accounting for its anomalously large size and spectral characteristics. Aims.
H. Abdalla   +228 more
semanticscholar   +1 more source

Accelerating Genomic Data Generation and Facilitating Genomic Data Access Using Decentralization, Privacy-Preserving Technologies and Equitable Compensation

open access: yesBlockchain in Healthcare Today, 2018
In the years since the first human genome was sequenced at a cost of over $3 billion, technological advancements have driven the price below $1,000, making personal genome sequencing affordable to many people. Personal genome sequencing has the potential
Dennis Grishin   +10 more
doaj   +1 more source

VVV-WIT-12 and Its Fashionable Nebula: A 4 yr Long-period Young Stellar Object with a Light Echo?

open access: yesThe Astrophysical Journal Letters, 2023
We report the serendipitous discovery of VVV-WIT-12, an unusual variable source that seems to induce variability in its surrounding nebula. The source belongs to the rare objects that we call WITs (short for What Is This?) discovered within the VISTA ...
Roberto K. Saito   +9 more
doaj   +1 more source

Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector† [PDF]

open access: yesNippon Tenmon Gakkai obun kenkyu hokoku, 2018
We present the results from the Hitomi Soft Gamma-ray Detector (SGD) observation of the Crab nebula. The main part of SGD is a Compton camera, which in addition to being a spectrometer, is capable of measuring polarization of gamma-ray photons.
F. Aharonian   +211 more
semanticscholar   +1 more source

Predictors of support for biodiversity loss countermeasure and bushmeat consumption among Vietnamese urban residents

open access: yesConservation Science and Practice, Volume 4, Issue 12, December 2022., 2022
People perceiving environmental degradation, and losses of economic growth, nature‐based recreation opportunities, health, and knowledge as consequences of biodiversity loss were more likely to support the prohibition of illegal wildlife consumption. People consuming bushmeat frequently and supporting the biodiversity loss preventive measure seemed to ...
Minh‐Hoang Nguyen, Thomas E. Jones
wiley   +1 more source

EVOLUTION OF THE CRAB NEBULA RADIO EMISSION

open access: yesOdessa Astronomical Publications, 2017
In 1977-1992 the flux density of the Crab Nebula in respect to Orion Nebula was measured at the frequency of 927 MHz with the same 10-m radio telescope.
E. N. Vinyajkin
doaj   +1 more source

The Real-Time Evolution of V4334 Sgr

open access: yesGalaxies, 2018
V4334 Sgr (Sakurai’s object) is an enigmatic evolved star that underwent a very late thermal pulse a few years before its discovery in 1996. It ejected a new hydrogen-deficient nebula in the process. The source has been observed continuously since,
Peter A. M. van Hoof   +7 more
doaj   +1 more source

Refusing Teachers and the Politics of Instrumentalism in Educational Policy

open access: yesEducational Theory, Volume 72, Issue 3, Page 383-397, June 2022., 2022
Abstract In this article, F. Tony Carusi considers the politics of instrumentalism performed between educational policy and research that figures the teacher as the primary means to raise student achievement. By reducing teachers to a means toward an end, policy and research work together to collapse what teachers are into what teachers are for, and in
F. Tony Carusi
wiley   +1 more source

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