Factors Influencing the Vitamin A and D Potency of Grayfish Liver Oil Squalus sucklii (Girard)

1939 ◽  
Vol 4b (5) ◽  
pp. 312-322 ◽  
Author(s):  
L. I. Pugsley
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Significant Influence ◽  
The Other ◽  
Factors Influencing ◽  
Three Samples ◽  
The Mean ◽  
Yield Colour

A study of the variations in yield, colour and vitamin A potency of the liver oil of grayfish, Squalus sucklii (Girard), as influenced by sex, size and time of catching was made. The mean yield (71.5 per cent), colour (3.5 Lovibond units of yellow) and vitamin A potency (3330 blue units per g.) varied with size of the fish; the other factors did not show any significant influence. Three samples of liver oil assayed 4, 6 and 7 international units of vitamin D and the values did not show any relation to the vitamin A potency.

Analysis of Fat-Soluble Vitamins. XX. Determination of Vitamin D in Multivitamin Preparations. Second Collaborative Study

1978 ◽  
Vol 61 (3) ◽  
pp. 735-745
Author(s):  
Ellen J De Vries ◽  
Frits J Mulder ◽  
Ben Borsje
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Test Data ◽  
Vitamin D3 ◽  
Collaborative Study ◽  
Three Samples ◽  
The Mean ◽  
Fat Soluble Vitamins

Abstract The official first action method for determining vitamin D in multivitamin preparations was modified. The method was collaboratively studied by 7 laboratories, using 6 preparations in oil. The preparations consisted of vitamin D at various levels and at various ratios (in w/w) to vitamin A. Three samples contained cholecalciferol and 3 samples contained vitamin D3 from vitamin D3 resin. After outliers were eliminated by the Dixon test, data were analyzed and averages were compared with amounts of vitamin D known to be in each sample. For samples with vitamin D: vitamin A ratios of 1:0.5, 1:5, and 1:10, the mean vitamin D recoveries were 98.8, 94.6, and 90.7%, respectively. The method has been adopted as official final action.

Analysis of Fat-Soluble Vitamins. XX. Determination of Vitamin D in Multivitamin Preparations. Second Collaborative Study

1978 ◽  
Vol 61 (3) ◽  
pp. 731-734
Author(s):  
Ellen J De Vries ◽  
Frits J Mulder ◽  
Ben Borsje
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Test Data ◽  
Vitamin D3 ◽  
Collaborative Study ◽  
Three Samples ◽  
The Mean ◽  
Fat Soluble Vitamins

Abstract The official first action method for determining vitamin D in multivitamin preparations was modified. The method was collaboratively studied by 7 laboratories, using 6 preparations in oil. The preparations consisted of vitamin D at various levels and at various ratios (in w/w) to vitamin A. Three samples contained cholecalciferol and 3 samples contained vitamin D3 from vitamin D3 resin. After outliers were eliminated by the Dixon test, data were analyzed and averages were compared with amounts of vitamin D known to be in each sample. For samples with vitamin D: vitamin A ratios of 1:0.5, 1:5, and 1:10, the mean vitamin D recoveries were 98.8, 94.6, and 90.7%, respectively. The method has been adopted as official final action.

scholarly journals The Influence of Guided Writing Materials Toward Students’ Writing Ability of the Fifth Semester Students at English Study Program FKIP UR

2020 ◽  
Vol 9 (1) ◽  
pp. 27
Author(s):  
Salwa Salwa ◽  
Kurniati Kurniati
Keyword(s):  
Significant Influence ◽  
The Other ◽  
Study Program ◽  
Pearson Product Moment Correlation ◽  
Writing Ability ◽  
Writing Test ◽  
Reliability Calculation ◽  
Guided Writing ◽  
Research Findings ◽  
The Mean

This study investigated the influence of guided writing materials in students’ writing ability at English Study Program FKIP UR in which forty students that simple randomly selected at English Study Program FKIP UR. The instruments used were questionnaire and writing test. Based on the research findings, the responses of questionnaire were coded into interval score by using Likert Scale which showing the students’ ability and their opinion in guided writing that consisted of fifteen statements based on six indicators in the form of frequency. On the other side, writing test administered in term of finding the students’ writing ability. It was a writing outlining with fifteen listed in the form of brief statements. Before the research revealed, the tried out had been applied in assessing the validation of the instrument by using Pearson Product Moment correlation formula indicated that items were valid. Reliability calculation were performed in Cronbach’s Alpha denoted that the instrument was reliable. The instrument can be stated reliable when if it has Cronbach Coefficient is higher than 0.60. based on research findingsm it can be concluded that: first, the students’ writing by using guided writing was categorized into good category 56.2, second, the mean score of students’ writing test is 50.68, it can be stated that students’ writing ability is categorized into good category. While Fcount is 27.78 and Ftable  is 4.25. Based on its criteria, H0 is accepted if Ftable < Fcount and Ha is accepted if Fcount > Ftable. After it compared (27.78 > 4.25), it showed that H0 is rejected. It can be concluded that there was significant influence of guided writing in students’ writing ability.

A SURVEY OF THE VITAMINS A AND D POTENCIES OF THE LIVER OIL OF ATLANTIC COD (GADUS MORRHUA L.)

1945 ◽  
Vol 23f (4) ◽  
pp. 243-252 ◽  
Author(s):  
L. I. Pugsley ◽  
C. A. Morrell ◽  
J. T. Kelly
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
New Brunswick ◽  
Seasonal Changes ◽  
Oil Content ◽  
Atlantic Cod ◽  
Fishing Season ◽  
Factors Influencing ◽  
Spawning Cycle ◽  
Vitamin Potency

A survey has been made of the variations and of some of the factors influencing the variations of the vitamins A and D potencies of the liver oil of cod landed at ports in Nova Scotia, New Brunswick, and the Gaspé peninsula of Quebec. An increase in the vitamin A potency was paralleled by an increase in the vitamin D potency and the oil content of the liver increased with the percentage liver in the fish. An increase in the oil content of the liver and of the liver content of the fish was accompanied by a decrease in the concentration of vitamins A and D in the oil. The vitamin potency of the oil tended to decrease as the fishing season advanced from June to October and the oil content of the liver increased during this period. When the yield of vitamins was expressed per 100 gm. of fish there was no apparent seasonal change in potency indicating that the seasonal changes observed were due to dilution. A relationship was observed between the stages in the spawning cycle and the oil content of the liver. Fish classed as "steaks" (six to eight years) yielded a liver oil higher in vitamins A and D potencies than "market cod" (four to six years) and the liver oil of "scrod" (three to four years) had the lowest vitamins A and D potencies.

scholarly journals The factors influencing the functional state recovery in cerebral stroke patients during the second rehabilitation stage

Medicina ◽  
2008 ◽  
Vol 44 (7) ◽  
pp. 500 ◽  
Author(s):  
Eglė Milinavičienė ◽  
Daiva Rastenytė ◽  
Aleksandras Kriščiūnas
Keyword(s):  
Functional State ◽  
Significant Influence ◽  
Cognitive Functions ◽  
Prognostic Value ◽  
The Body ◽  
Cerebral Stroke ◽  
Stroke Patients ◽  
Second Stage ◽  
Factors Influencing ◽  
The Mean

The aim of the study was to determine the functions influencing the recovery of the motor and cognitive functions and general functional state in cerebral stroke patients during the second rehabilitation stage, and their prognostic value. The contingent and methods. The studied contingent consisted of 226 cerebral stroke patients: 109 men and 117 women who had undergone the second stage rehabilitation in Viršužiglis Rehabilitation Hospital, a branch institution of Hospital of Kaunas University of Medicine. The mean age of the patients was 67.8±10.4 years. The greatest proportion of the patients (88.5%) was with cerebral infarction. The mean duration of rehabilitation was 38.8±8.9 days. The functional state of the patients was assessed by functional IndependenceMeasure; the cognitive function, by the short mental function study method; the severity of the stroke, in accordance with the National Institutes of Health Stroke Scale. The prognostic value of the factors was evaluated by the logistic regression method. A study analyzed the influence of patient’s gender, age, social factors, clinical symptoms and signs, risk factors for stroke, comorbities, the character and localization of the stroke, and psychoemotional state on the recovery of capacities related to motor and cognitive functions, and restoration of general functional state. Results. During the second stage of rehabilitation, the score of the functional state of the patients assessed by the Functional Independence Measures significantly improved from 65.9±20.3 to 93.5±20.9 (P<0.0001). At the end of rehabilitation, good efficacy of rehabilitation was determined in 64.2% of the rehabilitees; moderate, in 19.4%; insufficient, in 16.4%. In prognosing insufficient recovery of general functional state during the second stage of rehabilitation, the following factors had a significant influence: extremity hemiplegia, disturbed cognitive functions, urination impairment, joint and heart diseases. In cases of insufficient recovery of capacities linked with motor function in the second stage of rehabilitation, exerted extremity hemiplegia, neglect of the affected side of the body, urination impairments, joint and heart disorders had a significant influence, whereas localization of the stroke lesion in the left hemisphere of the brain, impairment of cognitive functions (disturbance of speech and perception), urination disturbances – on the insufficient recovery of capacities related to cognitive functions. Conclusion. Insufficient efficacy of rehabilitation of the rehabilitees with cerebral stroke in the second stage of rehabilitation was influenced by impairment of motor and cognitive functions, urination disturbancies, and comorbidities. In forming individualized inpatient rehabilitation programs and prognosing the further health care of patients with cerebral stroke, it is important to pay attention to factors, influencing insufficient efficacy of rehabilitation.

scholarly journals Study of Factors Influencing the Risk and their Relation to Credibility Theory

1977 ◽  
Vol 9 (1-2) ◽  
pp. 84-104 ◽  
Author(s):  
Maria Amélia Cabral ◽  
Jorge Afonso Garcia
Keyword(s):  
Least Squares Method ◽  
A Priori ◽  
Mean Value ◽  
The Other ◽  
Credibility Theory ◽  
Mean Values ◽  
Factors Influencing ◽  
The Mean ◽  
The One ◽  
Different Characteristics

The study and analysis of the various factors influencing insurance risks constitutes an intricate and usually quite extensive problem. We have to consider on the one hand the nature and heterogeneity of the elements we have been able to measure, and on the other the problem of deciding—without knowing exactly what results to expect—on the types of analysis to carry out and the form in which to present the results.These difficulties, essentially stemming from the fact that we cannot easily define “a priori” a measure of influence, can be overcome only by using highly sophisticated mathematical models. The researcher must define his objectives clearly if he is to avoid spending too much of his time in exploring such models.Either for these reasons or for lack of our experience in this field we were led to the study of three models, presenting entirely different characteristics though based on the analysis and behaviour of mean value fluctuations, measured by their variances or by the least-squares method.Our first model, described in II. 1, associates the notion of influence with the notion of variance. It analyses in detail the alteration of the mean values variance, when what we refer to as a “margination” is executed in the parameter space, taking each of the parameters in turn. We start off by having n distinct parameters, reducing them by one with each step.

scholarly journals Analysis of Serum 25– (OH) D Levels status in Subjects Suffering from Pulmonary Tuberculosis: A Teaching Hospital Based study in Western Uttar Pradesh Region

2020 ◽  
Vol 9 (1) ◽  
pp. PM01-PM04
Author(s):  
Shailendra Kumar Jain
Keyword(s):  
Vitamin D ◽  
Pulmonary Tuberculosis ◽  
Uttar Pradesh ◽  
Case Control ◽  
The Other ◽  
Healthy Controls ◽  
Female Ratio ◽  
Tuberculosis Patients ◽  
Male Female Ratio ◽  
The Mean

Background: This report analyses the outcomes of a case control investigation shelled in an eventual legion learning of domestic contamination (HHCs) of TB patients. Further, these data was pooled with other available probable learning of status of vitamin D and TB hazard to demeanor asingle-participant data (IPD). Subjects and Methods: In the study recently diagnosed pulmonary tuberculosis patients were involved with a total number of 28 with a male female ration of 18 : 10 and on the other side  28 healthy controls were selected with a male female ratio of 16:12 according to inclusion and elimination criterion through non-probability purposive sampling.Results: The mean age of cases with tuberculosis was 38.8±7.5years whereas the represent age of controls was 36±5.04 years. Remarkable differences were observed between the patients with tuberculosis and controls. The differences were very significant in RBC counts, Hemoglobin,and Platelet counts. Squat standard hemoglobin values were found in the majority of study subjects in common and specifically in patients with pulmonary tuberculosis.Conclusion: It has been found in the study that squat serum 25– (OH) D levels were related through amplified threat of future succession to TB disease in a dose-depending method.

scholarly journals Socio-economic factors influencing poverty among rural households in onicha local government area, ebonyi state, Nigeria

2019 ◽  
Vol 9 (1) ◽  
pp. 8-13
Author(s):  
VA Eze ◽  
NE Odoh ◽  
OE Igwe ◽  
CJ Mgbanya
Keyword(s):  
Local Government ◽  
Multiple Regression ◽  
Significant Influence ◽  
Rural Households ◽  
Farm Size ◽  
Economic Factors ◽  
Poverty Level ◽  
Factors Influencing ◽  
The Mean ◽  
Socio Economic Factors

The study examined the socio-economic factors influencing poverty among rural households in Onicha Local Government Area of Ebonyi state, Nigeria. The study adopted multistage random and purposive sampling techniques to select 120 household heads. Primary data used for the study were collected using structured questionnaire. The data were analysed with the aid of means, percentage and frequency count and OLS multiple regression model. The result indicated that the households spent an average of N31,250 monthly to take care of their families and other essential personal needs. The result of the socio-economic characteristics showed that majority (53.3) of the respondents were females. The mean age was 36 years with majority (64.2%) married while an average of 6 persons per household was recorded. The predominant occupations were farming (36.0%) and civil service (35.8%). The households cultivated a mean farm size of 3.8 hectares, the mean monthly income was N19,720 while their average monthly expenditure amounted to N31,250. Moreover, 73.3% of the respondents belonged to one social organization or the other with over 90.0% of them having acquired various forms of formal education. The multiple regression result showed the coefficient of determination (R2) was 0.644 or 64.4%. The overall model was statistically significant (P<0.05), signifying that the selected socio-economic characteristics of the households have significant influence on their poverty level. The coefficients of age, sex, educational attainment, household size, farm size, income and membership of social groups were statistically significant. The hypothesis tested led to the conclusion that the selected socio-economic characteristics have significant influence on the poverty level of the households. The study recommended improvement of socio-economic attributes that improve the poverty level of rural households. Int. J. Agril. Res. Innov. & Tech. 9 (1): 8-13, June, 2019

Influence of Reduction Time on Specific Surface Area of SSI

2012 ◽  
Vol 476-478 ◽  
pp. 1450-1453
Author(s):  
Jun Guo Li ◽  
Wei Tian ◽  
Shou Zhang Li
Keyword(s):  
Wastewater Treatment ◽  
Specific Surface ◽  
Pore Size ◽  
High Activity ◽  
Surface Area ◽  
Specific Surface Area ◽  
Significant Influence ◽  
The Other ◽  
Reduction Time ◽  
The Mean

Spherical sponge iron (SSI) with high activity and intension possesses potential characteristics to be utilized as wastewater treatment material. Influence of reduction time on specific surface area and distribution of different diameter holes were investigated. It was suggested that reductive time has significant influence on the specific surface area of SSI reduced by hydrogen under the optimized temperature. When the reductive time increased from t1 to t3, the porosity increased from 44.32% to 50.62%. While the specific surface area of SSI declined significantly from 3.089 m2/g to 0.307 m2/g when the reductive time increased from t1 to t3. On the other hand, newly formed nucleus should be combined with the adjacent formed one, and larger holes were formed. Consequently, the specific surface area of SSI declined quickly while the reduction time was prolonged, and the mean pore size varied from 275.7nm to 4611.3 nm. To utilize the SSI in wastewater treatment to remove pollutants, t1 was the optimized reductive time for its preparation.

Determination of Vitamins D2 and D3 in Pharmaceuticals by Gas-Liquid Chromatography

1968 ◽  
Vol 51 (4) ◽  
pp. 839-840
Author(s):  
T K Murray ◽  
P Erdody ◽  
T Panalaks
Keyword(s):  
Vitamin D ◽  
Liquid Chromatography ◽  
Vitamin A ◽  
Coefficient Of Variation ◽  
Internal Standard ◽  
Antimony Trichloride ◽  
The Other ◽  
Gas Liquid Chromatography ◽  
Partition Chromatography

Abstract A method is described for determining vitamin D in multivitamin preparations; in the method, vitamins D2 and D3 are isomerized with antimony trichloride and separated by GLC. Vitamins D,2 and D3 are differentiated and measured separately and one vitamin may be used as an internal standard for the other. Vitamin A is largely removed by partition chromatography but can be tolerated in the final dilution in a ratio of 1:1 with vitamin D. When the method was used for the assay of multivitamin preparations, the coefficient of variation was 3.2%.

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