Liquid computer takes key quantum step

Science News ◽  
2002 ◽  
Vol 161 (2) ◽  
pp. 31-31
Keyword(s):  
1998 ◽  
Vol 57 (16) ◽  
pp. 9787-9791 ◽  
Author(s):  
W. Lu ◽  
Y. M. Mu ◽  
X. Q. Liu ◽  
X. S. Chen ◽  
M. F. Wan ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Roman Zettl ◽  
Ilie Hanzu

Fast Li+ solid ion conductors are a key component of all-solid-state batteries, a technology currently under development. The possible use of metallic lithium as active material in solid-state batteries warrants a quantum step improvement of battery specific energy, enabling further electric vehicles application. Hereby, we report the synthesis and ion conduction properties of a new solid hybrid electrolyte based on the MIL-121 metal organic framework (MOF) structure. After an ion exchange procedure that introduces Li+ in the structure, a known quantity of a soaking electrolyte is incorporated. The soaking electrolyte is based on the EMIM-TFSI ionic liquid, thus we can classify our formulation as a MOF–ionic liquid hybrid solid electrolyte. Electrical conductivity is investigated by impedance spectroscopy and preliminary studies of ion dynamics are conducted by 7Li NMR. The field of MOF-based ion conductors remains in incipient stages of research. Our report paves the way towards the rational design of new solid-state ion conductors.


Nature ◽  
1984 ◽  
Vol 307 (5952) ◽  
pp. 596-596 ◽  
Author(s):  
J. Barber

2020 ◽  
Vol 06 (04) ◽  
Author(s):  
Prabudhya Bhattacharyya ◽  
Thomas Mittiga
Keyword(s):  

PEDIATRICS ◽  
1994 ◽  
Vol 94 (2) ◽  
pp. 240-240
Author(s):  
Glenn D. Harris ◽  
Jose M. Saavedra ◽  
Laurence Finberg

Gorelick et al1 in their article "Effect of Ambient Temperature on Capillary Refill in Healthy Children" report that cool ambient temperature can prolong capillary refill time (CRT) in children with normal circulatory status. This suggests to them a limitation of the use of CRT in the assessment of ill or injured children. In the accompanying editorial2 entitled "Capillary Refill: Is It a Useful Clinical Sign?," Dr Baraff takes the aforementioned limitation one quantum step further to completely dismiss the use of CRT, stating it "adds nothing" in the evaluation of circulation.


Penicillin made possible the cure of many common, and also the most serious, infections, such as meningococcal meningitis and bacterial endocarditis, often with few or no sequelae. Endocarditis had been invariably fatal. Semisynthetic penicillins added new dimensions of convenience of administration and a broader spectrum in the presence of many β-lactamases. A quantum step forward was permitted by the derivatives of cephalosporin C. Specific clinical advances were (1) the opportunity to use these in some penicillinallergic patients, (2) activity against wider range of Gram-negative bacilli, (3) activity against Bacteroides fragilis (cefoxitin), (4) more complete renal excretion after oral cephalosporins than with oral penicillins, and (5) delayed renal excretion. Major remaining problems limiting β-lactam use are (1) allergy, (2) resistant organisms, (3) relatively poor entry into the cerebrospinal fluid (especially of cephalosporins, (4) some nephrotoxicity, (5) local irritation of veins and tissues during administration, and (6) poor results in patients with agranulocytosis.


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