Linear Group 13 E≡E Triple Bonds

Author(s):  
Zhong-hua Cui ◽  
Yu-Qian Liu ◽  
Run-Feng Huang ◽  
Meng-hui Wang ◽  
Bing Yan ◽  
...  
Keyword(s):  
Group 13 ◽  

The unexpected linear group 13 E≡E triple bonds was herein uncovered in the D3h-symmetry E2M5+ (M=Li, Na, K) clusters, where the linear M-E≡E-M form is perfectly surrounded by M3 motifs....

ChemPhysChem ◽  
2021 ◽  
Author(s):  
Zhong‐hua Cui ◽  
Yu‐qian Liu ◽  
Meng‐hui Wang
Keyword(s):  
Group 13 ◽  

Author(s):  
Jia-Syun Lu ◽  
Ming-Chung Yang ◽  
Shih-Hao Su ◽  
Xiang-Ting Wen ◽  
Jia-Zhen Xie ◽  
...  
Keyword(s):  
Group 13 ◽  

2021 ◽  
Author(s):  
Yu-Qian Liu ◽  
Meng-hui Wang ◽  
Run-Feng Huang ◽  
Lili Zhao ◽  
Zhong-Hua Cui

We report herein an evidence of EΞE triple bonds (E = Group 13) promoted by the perpendicularly surrounding M4 (M = Li, Na) motifs. The global minimum of E2M4 (E...


ASHA Leader ◽  
2012 ◽  
Vol 17 (5) ◽  
Author(s):  
Debra Suiter ◽  
Laurie Sterling ◽  
Lynne Brady Wagner

2020 ◽  
Vol 25 (4) ◽  
pp. 10-15
Author(s):  
Alexander Nikolaevich Rybalov

Generic-case approach to algorithmic problems was suggested by A. Miasnikov, I. Kapovich, P. Schupp and V. Shpilrain in 2003. This approach studies behavior of an algo-rithm on typical (almost all) inputs and ignores the rest of inputs. In this paper, we prove that the subset sum problems for the monoid of integer positive unimodular matrices of the second order, the special linear group of the second order, and the modular group are generically solvable in polynomial time.


2008 ◽  
Vol 66 (2a) ◽  
pp. 216-220 ◽  
Author(s):  
Abouch Valenty Krymchantowski ◽  
Henrique Carneiro ◽  
Jackeline Barbosa ◽  
Carla Jevoux

BACKGROUND AND OBJECTIVE: Nonsteroidal anti-inflammatory drugs (NSAID) are effective to treat migraine attacks. Lysine clonixinate (LC) and dipyrone (metamizol) have been proven effective to treat acute migraine. The aim of this study was to evaluate the efficacy and tolerability of the intravenous formulations of LC and dipyrone in the treatment of severe migraine attacks. METHOD: Thirty patients (28 women, 2 men), aged 18 to 48 years with migraine according the International Headache Society (IHS) (2004) were studied. The patients were randomized into 2 groups when presenting to an emergency department with a severe migraine attack. The study was single-blind. Headache intensity, nausea, photophobia and side effects were evaluated at 0, 30, 60 and 90 minutes after the drug administration. Rectal indomethacin as rescue medication (RM) was available after 2 hours and its use compared between groups. RESULTS: All patients completed the study. At 30 minutes, 0% of the dipyrone group 13% of the LC group were pain free (p=0.46). At 60 and 90 minutes, 2 (13%) and 5 (33%) patients from the dipyrone group and 11 (73%) and 13 (86.7%) patients from the LC group were pain free (p<0.001). At 60 minutes, significantly more patients from the LC group were nausea-free (p<0.001). Regarding photophobia, there were no differences between groups at 60 minutes (p=0.11). The use of RM at 2 hours did not differ among groups (p=0.50). Pain in the site of the injection was reported by more patients of the LC group compared to the dipyrone group (p<0.0001). CONCLUSION: LC is significantly superior to dipyrone in treating severe migraine attacks. LC promotes significantly more burning at the site of the injection.


ACS Omega ◽  
2020 ◽  
Vol 5 (33) ◽  
pp. 21271-21287
Author(s):  
Huynh Thi Phuong Loan ◽  
Thanh Q. Bui ◽  
Tran Thi Ai My ◽  
Nguyen Thi Thanh Hai ◽  
Duong Tuan Quang ◽  
...  

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