Feeding and body temperature in the rat: Diencephalic localization of changes produced by excess calcium ions

1976 ◽  
Vol 1 (1) ◽  
pp. 33-46 ◽  
Author(s):  
R.D. Myers ◽  
Christine L. Melchior ◽  
C.V. Gisolfi
Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1873 ◽  
Author(s):  
Jilong Wang ◽  
Yan Liu ◽  
Siheng Su ◽  
Junhua Wei ◽  
Syed Rahman ◽  
...  

In this study, tough and conductive hydrogels were printed by 3D printing method. The combination of thermo-responsive agar and ionic-responsive alginate can highly improve the shape fidelity. With addition of agar, ink viscosity was enhanced, further improving its rheological characteristics for a precise printing. After printing, the printed construct was cured via free radical polymerization, and alginate was crosslinked by calcium ions. Most importantly, with calcium crosslinking of alginate, mechanical properties of 3D printed hydrogels are greatly improved. Furthermore, these 3D printed hydrogels can serve as ionic conductors, because hydrogels contain large amounts of water that dissolve excess calcium ions. A wearable resistive strain sensor that can quickly and precisely detect human motions like finger bending was fabricated by a 3D printed hydrogel film. These results demonstrate that the conductive, transparent, and stretchable hydrogels are promising candidates as soft wearable electronics for healthcare, robotics and entertainment.


2017 ◽  
Vol 19 (73) ◽  
pp. 79-83
Author(s):  
L. Slivinska ◽  
S. Demydjuk ◽  
А. Shcherbatyy ◽  
V. Fedorovich ◽  
I. Tyndyk

Established etiological factors of nutritional osteodystrophy cows LLC Danylo Galician Yavoriv district, Lviv region. A clinical study on nutritional osteodystrophy cows. A decrease in productivity, alotriophagy, strained course, lameness, thickening and tenderness of the joints, softening of the caudal vertebrae, in severe cases – the formation of animals have been established. The fatness of most animals was below average, hypotension and atony of the predniegens were observed, body temperature was within the norm. In 50% of cows pallor of the mucous membranes was noted, in 10 cows – tachypnea (47.0 ± 0.45) and tachycardia (110.0 ± 3.65). In 10% of the cows, the thorax was pulled up, and the vertebral trunk – curved upwards. In 5 cows, fluctuations of the teeth were noted. Analyzing the diet of feeding cows, a shortage of phosphorus (10–15 g), cobalt (4–5 mg), zinc (27–110 mg), iodine (5–6 mg), sugar (120–180 g), copper (24–26 mg), carotene content (20–30 mg), excess calcium (14–28 g), iron (1400–2200 mg), manganese (210–360 mg). In the blood of experimental cows, the level of hemoglobin was reduced (by 10.6%), the number of erythrocytes (18.8%) in comparison with the animals in the control group. Leukoformula in cows was characterized by a decrease in the number of basophils (9%), eosinophils (47.6%), stabnoid (82.3%) and segmented (4%) neutrophils, monocytes (13.3%) and an increase in lymphocyte count (11% ). In the blood serum of the experienced, a decrease in the total protein content (7.2%), total calcium (26.3%), carotene (22.8%) and cobalt (58.8%) was established.


Biomaterials ◽  
2005 ◽  
Vol 26 (34) ◽  
pp. 6818-6826 ◽  
Author(s):  
I.S. Harding ◽  
N. Rashid ◽  
K.A. Hing

Author(s):  
D. James Morré ◽  
Charles E. Bracker ◽  
William J. VanDerWoude

Calcium ions in the concentration range 5-100 mM inhibit auxin-induced cell elongation and wall extensibility of plant stems. Inhibition of wall extensibility requires that the tissue be living; growth inhibition cannot be explained on the basis of cross-linking of carboxyl groups of cell wall uronides by calcium ions. In this study, ultrastructural evidence was sought for an interaction of calcium ions with some component other than the wall at the cell surface of soybean (Glycine max (L.) Merr.) hypocotyls.


Author(s):  
M. L. Zimny ◽  
A. C. Haller

During hibernation the ground squirrel is immobile, body temperature reduced and metabolism depressed. Hibernation has been shown to affect dental tissues varying degrees, although not much work has been done in this area. In limited studies, it has been shown that hibernation results in (1) mobilization of bone minerals; (2) deficient dentinogenesis and degeneration of alveolar bone; (3) presence of calculus and tears in the cementum; and (4) aggrevation of caries and pulpal and apical tooth abscesses. The purpose of this investigation was to study the effects of hibernation on dental tissues employing scanning electron microscopy (SEM) and related x-ray analyses.


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