Investigation of the local structure of molten ThF4 – LiF and ThF4 – LiF – BeF2 mixtures by high-temperature X-ray absorption spectroscopy and molecular-dynamics simulation
The microscopic structures of ThF4 – LiF and ThF4 – LiF – BeF2 molten salts have been systematically investigated by in situ high-temperature X-ray absorption fine-structure (XAFS) spectroscopy combined with molecular-dynamics (MD) simulations. The results reveal that the local structure of thorium ions was much more disordered in the molten state of the ThF4 – LiF – BeF2 salt than that in ThF4 – LiF, implying that the Th and F ions were exchanged more frequently in the presence of Be ions. The structures of medium-range-ordered coordination shells (such as Th – F2nd and Th – Th) have been emphasized by experimental and theoretical XAFS analysis, and they play a significant role in transport properties. Using MD simulations, the bonding properties in the molten ThF4 – LiF and ThF4 – LiF – BeF2 mixtures were evaluated, confirming the above conclusion. This research is, to the best of our knowledge, the first systematic study on the ThF4 – LiF – BeF2 molten salt via quantitative in situ XAFS analysis and MD simulations.
CLEVELAND - Two healthcare organizations are coming together to form a joint venture that will expand the boundaries of care through telehealth. Cleveland Clinic and American Well announced the joint venture named The Clinic, during the first day of the 2019 Medical Innovation Summit (MIS). Cleveland Clinic will offer up its expertise in virtual care and Boston-based American Well will contribute its digital health technology platform. The two companies are focused on leading the industry toward integrated, digital care delivery models that complement and are connected to traditional care settings. Executives from the orga...
CONCLUSIONS In a summary, by inhibiting the STAT3 activation, esculetin shows potential anticancer effects against the laryngeal cancer. PMID: 31630150 [PubMed - in process]
Is switching to this dual regimen an effective strategy for older HIV patients with toxicity concerns or comorbidities?HIV Medicine
Introduction:Prehospital pediatric endotracheal intubation has lower first-pass success rates compared to adult intubations and in general may not offer a survival benefit. Increasingly, emergency medical services (EMS) systems are deploying prehospital extraglottic airways (EGA) for primary pediatric airway management, yet little is known about their efficacy. We evaluated the impact of a pediatric prehospital airway management protocol change, inclusive of EGAs, on airway management and patient outcomes in children in cardiac arrest or respiratory failure.Methods: Using data from a large, metropolitan, fire-based EMS ser...
Industry players examined the intersection of sex, tech, health and pleasure at the Giant Health event in London last week.
This is the second partnership that Singapore-headquartered Doctor Anywhere has announced in Vietnam in a period of about two months.
CONCLUSIONS: Despite the slight increases in the 10-year observation period a stable trend cannot be assumed. However, this study might be useful as baseline for other studies on SDM implementation. PMID: 31629688 [PubMed - as supplied by publisher]
[Daily Trust] The Federal Government has pledged $12 million to the Global Fund to tackle HIV, tuberculosis and malaria.
CONCLUSION: Ultrastructural changes in rat liver tissue in conditions of obstructive jaundice may be reversible after restoration of drainage. On the other hand, ultrastructural changes in renal tissue in cases of prolonged jaundice are irreversible even if the internal drainage is restored. KEY WORDS: Bile Duct, Liver, Kidney, Obstructive Jaundice. PMID: 31630139 [PubMed - as supplied by publisher]
Authors: Pierret T, Briault A, Reymond E, Benet J, Arbib F, Pison C PMID: 31629604 [PubMed - as supplied by publisher]