Results 121 to 130 of about 14,731 (317)

Nuclear Decay [PDF]

open access: yes
This lesson provides an overview of basic atomic structure and the concept of radioactive decay. Topics include the particles that make up an atom, binding forces, and the concept of isotopes.
John Pratte
core  

Event program [PDF]

open access: yes, 2011
UNLV Undergraduates from all departments, programs and colleges participated in a campus-wide symposium on April 16, 2011. Undergraduate posters from all disciplines and also oral presentations of research activities, readings and other creative ...
Reiber, Carl, Booker, Nicholle
core   +5 more sources

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Radon as a Tracer for Lunar Volatiles [PDF]

open access: yes
Radon and its decay product polonium can be used as tracers to search for lunar volatiles. One effective technique to look for them would be by using alpha-particle spectrometers from lunar orbit.
Friesen, Larry Jay
core   +1 more source

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

open access: yesAnimal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan   +15 more
wiley   +1 more source

Health Risk Evaluations for Ingestion Exposure of Humans to Polonium-210

open access: yesDose-Response, 2007
The incident in London during November 2006 involving a lethal intake by Mr. Alexander Litvinenko of the highly-radioactive, alpha-particles-emitting polonium-210 (Po-210) isotope, presumably via ingestion, sparked renewed interest in the area of Po-210 ...
Bobby R. Scott
doaj   +1 more source

Multi‐omic profiling reveals immune cell priming signature linked to lupus prognosis

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Systemic lupus erythematosus (SLE) is a multi‐organ disease with widespread immune dysregulation and significant unmet clinical need. Blood‐based gene expression studies have advanced our understanding of SLE pathogenesis but may overlook critical tissue‐specific mechanisms that drive disease heterogeneity and progression.
Michael A. Smith   +23 more
wiley   +1 more source

Pharmacogenetic CYP2B6 variants affect steroid hormone metabolism in human breast cancer cells

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Common genetic CYP2B6 variants correlate with adverse breast cancer outcome. The oestrogen metabolites estriol and 16‐epiestriol, which are formed downstream of CYP2B6‐catalysed 16α/β‐hydroxytestosterone, may be linked to elevated breast cancer risk and might increase due to the demonstrated CYP2B6 variants‐related metabolic shifts.
Marco Hoffmann   +5 more
wiley   +1 more source

Assessment of Polonium-210 concentration and annual committed effective dose in edible muscle tissue of blue swimmer crab (portunus armatus), prawn (Penaeus monodon), shrimp (farfantepenaeus notialis), and crayfish (procambarus clarkii) from the deep sea of Sangana, Niger Delta, Nigeria

open access: yesFood Safety and Risk
This study investigated the activity concentration of Polonium-210 (210Po) in the edible tissues of Portunus armatus (blue swimmer crab), Penaeus monodon (prawn), Farfantepenaeus notialis (shrimp), and Procambarus clarkii (crayfish) harvested from the ...
Victor Ighariemu   +1 more
doaj   +1 more source

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