Estimation of Blood Concentrations in Skin Layers with Different Depths

2019 ◽  
Vol 2019 (1) ◽  
pp. 290-294
Author(s):  
Kaito Iuchi ◽  
Rina Akaho ◽  
Takanori Igarashi ◽  
Nobutoshi Ojima ◽  
Norimichi Tsumura

In this research, we proposed a method to estimate the concentrations of melanin and blood in different layers of skin tissue. Furthermore, we stimulated skin with a warm bath and a carbon dioxide bath and obtained spectral data by a multispectral camera six times during 18 minutes. Based on the captured image, we estimated the blood concentrations in each blood layers by the proposed method. The result showed that the blood concentration of the deep layer is increased only with the stimulation by carbon dioxide bath, and the blood concentration in the shallow layer is increased in both stimuli cases, but the rate of increase in the carbon dioxide bath was higher and the increase time was longer. Our result is consistent with the result of the previous research.

Author(s):  
F. G. T. Holliday ◽  
J. H. S. Blaxter

The salinity tolerance of herring 9-ca 24 cm in length was found to lie between 6‰0 and 40–45‰0.Determinations of changes in weight and blood concentration (by measurement of the freezing-point), when herring were transferred from one salinity to another, demonstrated that extensive changes occurred in the blood. Under these conditions the herring experienced and survived blood concentrations equivalent to salinites of 13–22·5‰. A recovery to near normal (δ0·95 ≡ 15·8‰) took place in all the salinities within the tolerance range.Badly descaled herring in sea water showed large increases in blood concentration before death.A study of the kidney of the herring indicated that the ability to withstand the low salinities for long periods probably rested in the high glomerular count of the kidney.The importance of damage to the skin for survival is discussed in relation to tagging experiments.The results are also discussed in relation to the evolution of the herring.


PEDIATRICS ◽  
1964 ◽  
Vol 33 (1) ◽  
pp. 75-82
Author(s):  
Forrest H. Adams ◽  
Tetsuro Fujiwara ◽  
Robert Spears ◽  
Joan Hodgman

Thirty-four measurements of oxygen consumption, carbon dioxide production, respiratory quotient, and rectal temperature were made on 22 premature infants with ages ranging from 2½ hours to 18 days. The studies were conducted at 32-34°C utilizing an open circuit apparatus and a specially designed climatized chamber. Oxygen consumption and carbon dioxide production were lowest in the first 12 hours and increased thereafter. The rate of increase in O2 consumption was greater than that of CO2 production, with a consequent fall in respiratory quotient during the first 76 hours of life. A reverse relation of O2 consumption and CO2 production was found following the 4th day of life with a consequent rise in respiratory quotient. There was a close correlation between O2 consumption and rectal temperature regardless of age. A respiratory quotient below the value of 0.707 for fat metabolism was observed in 7 premature infants with ages ranging from 24 to 76 hours.


2019 ◽  
Vol 8 (2) ◽  
Author(s):  
A.M.S.K. Abeysekara ◽  
S.K. Yatigammana ◽  
K.T. Premakantha

Carbon dioxide has gained lot of attention in recent past as a greenhouse gas, and therefore it has a potential to affect the climate pattern of the world. Several anthropogenic activities are known to be responsible for the increased level of carbon in the atmosphere and disruption of the global carbon cycle. However, nature has its own mechanism of sequestering and storing the carbon in its “reservoirs”. Forest has the ability to sequester carbon in their biomass and reduce the rate of increase of atmospheric carbon dioxide. The carbon sequestered in the forest trees are mostly referred to as the biomass of a tree or a forest. It has been identified five carbon pools of the terrestrial ecosystem, involving biomass. The study was designed to estimate biomass stock and then the carbon stock of the Udawattakele Forest Reserve (7°17'58 "N, 80°38'20’’E) in Kandy, Sri Lanka. Allometric equations were used to calculate biomass of trees. The total biomass stock was estimated to be 9475.56 t ha-1 (Mega gram-Mg) and the total carbon stock was estimated to be 4,453.55 t ha-1 (Mg) in the Udawattakele Forest Reserve (UFR). This amount is equivalent to 16,344.52 Mg of carbon dioxide in the atmosphere. UFR holds a moderate amount of biomass/carbon stock and the total carbon density of natural forest and plantations was found to be 36.55 Mg ha-1 and 44.89 Mg ha-1 respectively.


1933 ◽  
Vol 8 (4) ◽  
pp. 375-389 ◽  
Author(s):  
P. H. H. Gray ◽  
N. B. McMaster

Microbiological studies of samples from the separate horizons and from different depths of soils of the Appalachian upland podsol group show that the activity of the micro-organisms is dependent upon the organic-matter relations in the horizons. The organic-matter horizon is biologically the most active, as shown by analyses for carbon dioxide, nitrate nitrogen, numbers of bacteria, and production of ammonia from urea. Evidence is submitted that the reduced activity of the leached layer and the horizons of accumulation is not due to toxic compounds produced by leaching of the organic matter.


1972 ◽  
Vol 128 (5) ◽  
pp. 1311-1318 ◽  
Author(s):  
G. D. Baird ◽  
R. J. Heitzman ◽  
K. G. Hibbitt

1. The purpose of this study was to determine the nature of the metabolic changes associated with carbohydrate and fat metabolism that occurred in the blood and liver of lactating dairy cows during starvation for 6 days. 2. During starvation, the blood concentrations of the free fatty acids and ketone bodies increased, whereas that of citrate decreased. After an initial increase, the blood concentration of glucose subsequently declined as starvation progressed. Starvation caused a significant decrease in the plasma concentration of serine and a significant increase in that of leucine. 3. After 6 days of starvation the hepatic concentrations of oxaloacetate, citrate, phosphoenolpyruvate, 2-phosphoglycerate, 3-phosphoglycerate, glucose, glycogen, ATP and NAD+ had all decreased, as had the hepatic activities of phosphopyruvate carboxylase (EC 4.1.1.32) and pyruvate kinase (EC 2.7.1.40). 4. The above metabolic changes are similar to those previously found to occur in cows suffering from spontaneous ketosis (Baird et al., 1968; Baird & Heitzman, 1971). 5. Milk yield decreased progressively during starvation. 6. There were marked differences in the ability of individual animals to resist the onset of severe starvation ketosis.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e21127-e21127
Author(s):  
Galina A. Nerodo ◽  
Ekaterina Nerodo

e21127 Background: hormonodependency of vulva is wellknown. This broughtusto study hormonal status of vulva cancer patients depending on treatment efficacy Methods: we present comparative analysis of hormonal status of vulva cancer patients in two groups: group 1 (50 patients) without relapse of the disease in 5-year period, and group 2 (35 patients) with relapse developed within the first year. Blood concentrations of testosterone, progesterone, follicle-stimulating hormone (FSH), luteinizing hormone were determined in all patients under study by means of radiometric methods. Estrone, estradiol, estriol with subsequent calculation of their sum were determined in daily urine by Brown method. Results: In the presence of effect (group 1) initial total amount of estrogens was twice as large than in its absence. In group 1 estradiol concentration exceeded the corresponding parameter of group 2 by three times(7.6±0.6 & 1,4±0.3,p<0.001). The amount of secreting estriol at positive result was almost twice higher than in cases of absence of the effect(10.02±1.7 & 4.6±0.49, p<0.001). The groups differed by secretion levels of follicle-stimulating and luteinizing hormones. Blood concentration of these hormones was lower in negative results that in positive. Distinct differences were also observed in progesterone and prolactin levels. In the group with positive result of treatment progesterone concentration was much higher than in the group without treatment effect. On the contrary, prolactin concentration in group 1 was significantly less than in group 2. The highest degree of reliability of quantitative indices related to treatment efficacy was observed for progesterone. Positive result of corresponding treatment may be predicted at normal initial progesterone level, and negative result at its low level (3-4 times lower than the norm). Another parameter - blood concentration of prolactin - can be used almost with the same degree of reliability. Conclusions: results of the study allow to suggest an existence of interrelation between treatment efficacy of vulva cancer patients and functional activity of hypophysis-gonadal system. Some of its parameters may be used to predict results of complex treatment of vulva cancer patients.


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