Electroanalytical Measurements of Lanthanum (III) Chloride in Molten Calcium Chloride and Molten Eutectic Calcium Chloride and Lithium Chloride

2021 ◽  
Vol MA2021-02 (21) ◽  
pp. 1909-1909
Author(s):  
Mark Schvaneveldt ◽  
Devin Rappleye ◽  
Ranon G Fuller
2013 ◽  
Vol 43 (12) ◽  
pp. 1235-1241 ◽  
Author(s):  
L. D. Brown ◽  
R. Abdulaziz ◽  
S. Simons ◽  
D. Inman ◽  
D. J. L. Brett ◽  
...  

Author(s):  
A A Al-Farayedhi ◽  
P Gandhidasan ◽  
M A Antar ◽  
M S Abdul Gaffar

This article presents the results of an experimental study on the performance of a structured packing dehumidifier and the regenerator system. The system is tested using different proportions of an aqueous desiccant mixture of calcium chloride and lithium chloride solutions with an overall concentration of 40 wt%. The instantaneous effectiveness and the time-average effectiveness of the dehumidification process as well as the regeneration process are defined for the hybrid cooling system. It is found that as the lithium chloride content in the solution increases, the effectiveness of the dehumidifier as well as the regenerator increases. Moreover, the regeneration of the lithium chloride solution is found to be more effective than that of calcium chloride solution. The dehumidifier effectiveness using the desiccant mixture of 20 wt% CaCl2 and 20 wt% LiCl is found to be close to that of 45 wt% solution of calcium chloride and improves by ɛ80 per cent over the 40 wt% solution of calcium chloride.


1979 ◽  
Vol 57 (4) ◽  
pp. 408-412 ◽  
Author(s):  
S. Takamatsu ◽  
H. Ishizaki ◽  
H. Kunoh

Earlier researchers have shown that the susceptibility of barley to infection by Erysiphe graminis hordei is enhanced by calcium ions but inhibited by lithium. Some effects of these ions on the infection process of E. graminis hordei in coleoptiles of barley were investigated in this study. Whereas 1 mM lithium chloride inhibited appressorial formation considerably and haustorial formation completely, these effects were totally offset by 10 mM calcium chloride. Moreover, whereas 5 and 10 mM lithium chloride inhibited both appressorial and haustorial formation completely, the former was offset considerably by 10 mM calcium chloride, but the latter was not.Sequential calcium chloride − lithium chloride or lithium chloride − calcium chloride treatments carried out at different times and for various durations showed that events occurring in coleoptiles 11 to 13 h after inoculation were most vulnerable to the treatments. These events correspond to infection stages involving the development of cytoplasmic aggregates, papillae, and haustoria. The data suggest that the two ions in question might compete for a common binding site in a reaction(s) associated with certain stages of appressorial and haustorial development.


2016 ◽  
Vol 83 ◽  
pp. 718-725 ◽  
Author(s):  
S. Bouzenada ◽  
A.N. Kaabi ◽  
L. Frainkin ◽  
T. Salmon ◽  
A. Léonard

1986 ◽  
Vol 31 (1) ◽  
pp. 54-55 ◽  
Author(s):  
Thomas M. Davis ◽  
Lisa M. Duckett ◽  
Chad E. Garvey ◽  
Jeffrey M. Hollifield ◽  
C. Stuart Patterson

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Tohru Hira ◽  
Shono Ogasawara ◽  
Hiroshi Hara

AbstractIntroductionDietary calcium has been proposed to reduce appetite (or to enhance satiety) in human studies. However, underlying mechanisms are still unclear. In animal and cell studies, it has been demonstrated that activation of the calcium-sensing receptor induced secretion of anorexic gut hormones such as cholecystokinin (CCK) and glucagon-like peptide-1 (GLP-1) from enteroendocrine cells. In the present study, we tested the hypothesis that calcium suppresses appetite thorough enhanced gut hormone secretion, by using rats.Materials and MethodsMale Sprague Dawley rats were maintained by feeding a standard diet (AIN-93G, n = 6–8 per group). As calcium sources, calcium chloride, calcium carbonate, and calcium lactate were tested. These calcium salts were orally preloaded in fasted rats by using a feeding tube, and subsequent food intake was monitored until 24 hours. To assess conditioned taste aversion, saccharin preference test was conducted after conditioning with calcium or lithium chloride. To investigate involvements of gut hormones such as CCK, GLP-1, and peptide-YY (PYY), specific receptor antagonists for respective gut hormones were intraperitoneally injected just after oral preload of calcium, and then food intake was monitored. Portal blood samples were collected 15 or 30 min after oral preload of calcium for measurement of gut hormones by ELISA.Results and discussionAt the same dose of calcium (150 mg/kg), preload of calcium chloride reduced food intake for 4 hours compared to preload of the control solution (P < 0.05), while other compounds had minor effects on food intake. Saccharin preference ratio was only reduced by conditioning with lithium chloride (P < 0.01), but not by that with calcium compounds, indicating no conditional taste aversion was occurred by calcium. Suppressive effect of calcium chloride on food intake was partially reversed by pretreatment with a PYY receptor antagonist (BIIE0246) but not by that with a CCK- or a GLP-1 receptor antagonist. Portal PYY concentrations were higher in calcium chloride-treated rats than in the control rats (P < 0.05), 15 min after the preload and re-feeding. Changes in serum calcium concentrations were not observed by preload of calcium.These results suggest that oral preload of calcium chloride reduces subsequent food intake via enhanced PYY secretion in rats.


Sign in / Sign up

Export Citation Format

Share Document