Results 31 to 40 of about 6,377 (165)

Iron and copper sulfides in asteroid (162173) Ryugu: Formation conditions and a comparison to the CI and CY chondrites

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 506-528, March 2025.
Abstract JAXA's Hayabusa2 sample return mission visited the volatile‐rich carbonaceous (C‐type) asteroid (162173) Ryugu with the aim of ground‐truthing remote observations, returning a pristine sample from a C‐type asteroid, and strengthening links between asteroids and the meteorite collection. Here, we have conducted a systematic study of coarse (>10 
C. S. Harrison   +26 more
wiley   +1 more source

INTEGRAL and Nuclear Astrophysics [PDF]

open access: yes, 2001
We briefly review the fundamentals of nuclear gamma-ray line astronomy (radioactive astronomy), focusing on its role to decipher the intimate physics of supernovae, either immediatly (via $^{56}Co)$ or after a time delay (via $^{44}Ti$).
Casse, Michel   +2 more
core   +2 more sources

Periodic Table of Immunomodulatory Elements and Derived Two‐Dimensional Biomaterials

open access: yesAdvanced Science, Volume 12, Issue 6, February 10, 2025.
Two‐dimensional (2D) nanomaterials, possessing unique physiochemical properties, revolutionize the field of biomedical engineering to address critical diagnostic and therapeutic challenges. This review unveils the periodic table of 2D immunomodulatory elements, assessing synthesis, properties, immunomodulatory mechanisms and biocompatibility.
Alireza Rafieerad   +5 more
wiley   +1 more source

How knowledge of the gastrointestinal absorption of elements could be used to predict transfer to milk [PDF]

open access: yes, 2016
The quality and quantity of data used to derive transfer parameter values for milk are variable and there are many data gaps for elements/radionuclides which may need to be considered for risk assessment of the agricultural foodchain.
Barnett, Catherine L.   +3 more
core   +1 more source

FDA‐approved drugs featuring macrocycles or medium‐sized rings

open access: yesArchiv der Pharmazie, Volume 358, Issue 1, January 2025.
This review presents 17 macrocyclic drugs approved by the U.S. Food and Drug Administration during the past 5 years, highlighting their importance and critical role in modern therapeutics, and the innovative synthetic approaches for the construction of these macrocycles.
Youlong Du   +7 more
wiley   +1 more source

Calculating Sedimentation Rates of Oxic Pelagic Clays Using Core Top Thorium Isotopes

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.
Abstract Oxic pelagic clays are an important component of seafloor sediment that may hold valuable information about past ocean chemistry due to their affinity for and accumulation of biogeochemically important metals. We present a new approach to calculating site‐specific sedimentation rates (SRs) by comparing authigenic sediment thorium isotope ...
Kassandra M. Costa   +7 more
wiley   +1 more source

Peaceful atoms in agriculture and food : how the politics of the Cold War shaped agricultural research using isotopes and radiation in post war divided Germany [PDF]

open access: yes, 2015
During the Cold War, the super powers advanced nuclear literacy and access to nuclear resources and technology to a first-class power factor. Both national governments and international organizations developed nuclear programs in a variety of areas and ...
Zachmann, Karin
core   +5 more sources

Reports of tropane alkaloid poisonings and analytical techniques for their determination in food crops and products from 2013 to 2023

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 23, Issue 6, November 2024.
Abstract Food safety is crucial to attaining food security and sustainability. Unsafe foods for human and animal consumption lead to product recalls and rejection, negatively impacting the global economy and trade. Similarly, climate change can adversely affect the availability of safe and nutritious food at the table.
Rufielyn S. Gravador   +6 more
wiley   +1 more source

Nuclear Physics for Cultural Heritage [PDF]

open access: yes, 2016
Nuclear physics applications in medicine and energy are well known and widely reported. Less well known are the many important nuclear and related techniques used for the study, characterization, assessment and preservation of cultural heritage.
The Nuclear Physics Division of the European Physical Society
core  

Quickening nature’s pulse : atomic agriculture at the International Atomic Energy Agency [PDF]

open access: yes, 2015
Mutation breeders in the 1960s seemed poised to use atomic energy to speed up mutation rates in plants in order to develop new crop varieties, for the benefit of all people. Although skepticism had slowed this work in the United States, the International
Darwin Hamblin, Jacob
core   +4 more sources

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