Results 91 to 100 of about 14,731 (317)

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Trace Element Estimation – Methods & Clinical Context [PDF]

open access: yes, 2005
Understanding the effects of trace metals on human health is as complex as it is fascinating. As mentioned earlier, the high concentrations may prove toxic, as also, depletion in the concentration of the essential trace elements may cause various ...
Rao Nanjunda, Dr. Ananth
core   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

Alpha emitter in samples of antibiotics commonly used in pediatric age groups

open access: yesNuclear Analysis
This investigation is aimed to assess the level of 222Rn (radon-222), 226Ra (radium-226), 238U (uranium-238), 218Po (Polonium-218), 214Po (Polonium-214) in antibiotics that are commonly utilized for pediatrics in Al-Najaf, governorate.
Ahmed Abdul Hadi Mohsen   +3 more
doaj   +1 more source

Periodic Table of chemical elements and Soviet atomic project

open access: yesТонкие химические технологии, 2019
The Soviet atomic project, also known as the nuclear shield, is a true triumph of the Periodic Law. Unlike other global projects, it covers the entire Periodic Table of chemical elements: from the first element of the table (hydrogen) to the last one at ...
R. E. Kusin
doaj   +1 more source

Effects of the Spin-Orbit Coupling and the Superconductivity in simple-cubic alpha-Polonium

open access: yes, 2012
We have investigated the mechanism of stabilizing the simple-cubic (SC) structure in polonium (alpha- Po), based on the phonon dispersion calculations using the first-principles all-electron band method.
Kang, Chang-Jong, Kim, Kyoo, Min, B. I.
core   +1 more source

Lichens and mosses as polonium and uranium biomonitors on Sobieszewo Island

open access: yesJournal of Radioanalytical and Nuclear Chemistry, 2016
In the study the activities of polonium 210Po and uranium 234U, 238U radionuclides in moss and lichen samples were determined using the alpha spectrometry.
A. Boryło   +2 more
semanticscholar   +1 more source

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

Synthesis of polyacrylamide-based aerosol fixative and its fixation effect on tellurium aerosol

open access: yesFushe yanjiu yu fushe gongyi xuebao
The removal control of radioactive aerosols in a nuclear emergency is an important issue, and capture fixation is a parameter for studying the purification effect of aerosol fixatives on aerosols.
XIAO Mengqing   +8 more
doaj   +1 more source

Self-assembly of the simple cubic lattice with an isotropic potential

open access: yes, 2006
Conventional wisdom presumes that low-coordinated crystal ground states require directional interactions. Using our recently introduced optimization procedure to achieve self-assembly of targeted structures (Phys. Rev. Lett. 95, 228301 (2005), Phys. Rev.
Frank H. Stillinger   +6 more
core   +1 more source

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