scholarly journals About the using of Matiegka’s formulas to evaluate the fat component of body mass. Technical recommendations (short communication)

2021 ◽  
pp. 27-32
Author(s):  
Anna V. Anisimova ◽  
Keyword(s):  
Body Fat ◽  
Short Communication ◽  
Average Thickness ◽  
Mean Values ◽  
Final Estimate ◽  
The Mean ◽  
Highly Correlated ◽  
High Level ◽  
Level Of Agreement ◽  
Technical Recommendations

For this work were taken measurements of the skinfolds of Russian children and adolescents of both sexes 7-17 years old, with a total number of 1103 pupils. Was made a comparison of the mean values of the average skinfolds. Results and discussion. In the investigated group significant differences in the average thickness of the skinfolds were revealed between the initial set of Matiegka and the modification of Lutovinova et al. The revealed differences significantly influenced the final estimates of the mass of body fat. However, the estimates obtained turned out to be highly correlated and with a high level of agreement, on the basis of which conversion formulas between them were proposed. Conclusion. When using Matiegka's formulas, it is necessary to give a detailed description of the method for measuring skinfolds, taking into account the influence of the choice of skinfolds on the final estimate of the fat mass.

scholarly journals Intercomparison of slant column measurements of NO<sub>2</sub> and O<sub>4</sub> by MAX-DOAS and zenith-sky UV and visible spectrometers

2010 ◽  
Vol 3 (6) ◽  
pp. 1629-1646 ◽  
Author(s):  
H. K. Roscoe ◽  
M. Van Roozendael ◽  
C. Fayt ◽  
A. du Piesanie ◽  
N. Abuhassan ◽  
...  
Keyword(s):  
Cross Sections ◽  
Measuring Instruments ◽  
Mean Values ◽  
Straight Line ◽  
Tropospheric No2 ◽  
The Mean ◽  
Almost All ◽  
Level Of Agreement ◽  
Selection Of ◽  
Differential Spectroscopy

Abstract. In June 2009, 22 spectrometers from 14 institutes measured tropospheric and stratospheric NO2 from the ground for more than 11 days during the Cabauw Intercomparison Campaign of Nitrogen Dioxide measuring Instruments (CINDI), at Cabauw, NL (51.97° N, 4.93° E). All visible instruments used a common wavelength range and set of cross sections for the spectral analysis. Most of the instruments were of the multi-axis design with analysis by differential spectroscopy software (MAX-DOAS), whose non-zenith slant columns were compared by examining slopes of their least-squares straight line fits to mean values of a selection of instruments, after taking 30-min averages. Zenith slant columns near twilight were compared by fits to interpolated values of a reference instrument, then normalised by the mean of the slopes of the best instruments. For visible MAX-DOAS instruments, the means of the fitted slopes for NO2 and O4 of all except one instrument were within 10% of unity at almost all non-zenith elevations, and most were within 5%. Values for UV MAX-DOAS instruments were almost as good, being 12% and 7%, respectively. For visible instruments at zenith near twilight, the means of the fitted slopes of all instruments were within 5% of unity. This level of agreement is as good as that of previous intercomparisons, despite the site not being ideal for zenith twilight measurements. It bodes well for the future of measurements of tropospheric NO2, as previous intercomparisons were only for zenith instruments focussing on stratospheric NO2, with their longer heritage.

scholarly journals Custom Focal Trough in Cone-Beam Computed Tomography Reformatted Panoramic Versus Digital Panoramic for Mental Foramen Position to Aid Implant Planning

2020 ◽  
Vol 10 ◽  
pp. 34
Author(s):  
Khaled Beshtawi ◽  
Emad Qirresh ◽  
Mohamed Parker ◽  
Shoayeb Shaik
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mental Foramen ◽  
Reference Points ◽  
Cone Beam ◽  
Vertical Position ◽  
Linear Measurements ◽  
Mean Values ◽  
The Mean ◽  
High Level

Objectives: To compare the linear measurements from digital panoramic (DP) radiographs and cone-beam computed tomography (CBCT) volumes for the localization of the mental foramen (MF). Material and Methods: Thirty-one patients with panoramic and CBCT radiographs depicted on the same machine were analyzed. The vertical and horizontal positions of the MF were compared by the differences in distances measured from reference points to the boundaries (tangents) of the MF in digital panoramic (DP) and CBCT reformatted panoramic (CRP) views. The vertical position of MF was also analyzed on CBCT oblique coronal views (CORO) and compared with its corresponding distances on DP and CRP views. Results: Statistically significant differences (P < 0.05) were found in all compared measurements between CRP and DP views. In addition, the vertical distance (Y1) compared between DP, CRP, and CORO views also showed a statistically significant measurement discrepancy in the mean distance (P < 0.000) with the highest mean difference of 1.59 mm (P < 0.05) was attained from Y1 (DP-CORO). Inter- and intra-examiner analysis indicated a high level of agreement for all measurements. Conclusion: The mean values of discrepancies in measurements between DP and CRP views for horizontal and vertical linear measurements were clinically tolerable. Nevertheless, significant differences in the vertical MF position were detected between the panoramic views (DP, CRP) and the coronal views (CORO). This implies that the use of coronal view measurements during implant planning might reduce the risk of neurovascular injuries.

Empirical validation of the Adapted Warner status characteristic index

2020 ◽  
pp. 110-123
Author(s):  
YELIENA KOVALSKA
Keyword(s):  
Construct Validity ◽  
Social Status ◽  
Empirical Validation ◽  
Self Assessment ◽  
Mean Values ◽  
Empirical Validity ◽  
Characteristic Index ◽  
Status Characteristic ◽  
The Mean ◽  
High Level

The paper presents the results of empirical validation and verification of the reliability of the Adapted Warner status characteristic index (Warner’s AISC). Earlier, the adaptation of Warner’s ISС was carried out, and the level of theoretical (obvious and substantial) validity was checked. As a part of checking the level of empirical validity of Warner’s AISC, the level of validity by criteria and construct validity was measured. Two face-to-face surveys (2017–2018) were used as the empirical basis for the study. The validity by criteria was tested through holding a methodical experiment, that comparing two groups which differed significantly in terms of social status. Respondents in two different administrative districts of Kyiv were selected as such groups. The level of prestige of the district of residence differs significantly in terms of prestige. There were found that the mean value of Warner’s AISC in these groups differed significantly, which indicates a high level of validity by criterion. The relationships between the different indicators of the social status of respondents have been analyzed to test the level of validity of construct. Thus, the relationship between Adapted Warner’s Status characteristic index indicators and the results of the questions aimed at directly measuring the self-assessment of their position in society was analyze: 1) integral self-assessment of social status using a seven-point scale; 2) a subjective assessment of the financial situation, within the framework of which the respondent is asked to assess his own financial condition. The mean values of Warner’s AISC in the deferent groups by the level of self-esteem differ significantly. The results obtained speak in favor of the construct validity of Warner’s AISC. With regard to the reliability of the index, it has been concluded that it would be useful to measure the retest reliability of the instrument. Because of the causality characteristics of the composite index we can’t use assessment of usability. The validation results of the Adapted Warner status characteristic index indicate a high level of empirical validity of the instrument.

scholarly journals Social Support And Job Satisfaction Among Academicians: A Comparison Between Public And Private University In Malaysia

2019 ◽  
Vol 8 (5C) ◽  
pp. 449-456
Keyword(s):  
Social Support ◽  
Job Satisfaction ◽  
Positive Impact ◽  
Private University ◽  
Public And Private ◽  
Mean Values ◽  
The Mean ◽  
University Level ◽  
High Level

The role of social support at workplace become one of the most important variables that can give impact on employee’s attitude. Closely related to employee’s performance, many studies have confirmed the role of social support in enhancing employee’s job satisfaction. The aims of this research is two-folds. First, to investigate the differences and second to compare the effect of social support on job satisfaction among academicians in Malaysia. Overall, a total of 420 samples were obtained, wherein 210 participants withdrawn from each setting. Data was collected using self-administrated questionnaire, and analyzed using SPSS version 22. The finding suggested that social support levels (i.e. supervisor support and co-worker support) are higher among academicians in private university. Level of job satisfaction, otherwise is higher among public university. Overall, the mean values indicated high level of social support and job satisfaction among academicians in both university. Analysis of t-Test revealed that there is no significant differences in terms of social support, however the significant being observed in terms of job satisfaction between academicians in Malaysia public and private university. This study also ascertained the positive impact of social support on job satisfaction to both samples. Implication of this study includes empirical contribution and deliberation on social support and job satisfaction. Suggestion from this study includes improving social support to enhance overall academicians’ job satisfaction.

scholarly journals Genetic variability of Nigerian sheep breeds at the insulin-like growth factor-1 (IGF-1) gene locus

2020 ◽  
Vol 45 (1) ◽  
pp. 51-60
Author(s):  
A. Mohammed ◽  
A. O. Raji ◽  
J. U. Igwebuike
Keyword(s):  
Genetic Variability ◽  
Random Mating ◽  
General Pattern ◽  
Fixation Index ◽  
Mean Values ◽  
Sheep Breeds ◽  
Expected Heterozygosity ◽  
The Mean ◽  
High Level ◽  
The University

The genetic variability of some Nigerian breeds of sheep at the IGF 1 locus was investigate blood samples from 150 sheep (50 each of Yankasa, Balami and Uda sheep) were collected from the Maiduguri abbatoir and analysed at the Biotechnology centre of the University of Maiduguri. A relatively high level of genetic variability was detected in Nigerian sheep; the mean observed heterozygosity (Ho) and expected heterozygosity (He) values were 0.433 and 0.476, respectively. Comparison of expected heterozygosity of alleles between the populations showed that yankasa was the most heterozygous of the sheep populations though the unbiased expected heterozygosity (0.503) for the Yankasa was the same as that of the Balami. All populations were 100% polymorphic at the IGF 1 locus with fixation index ranging from -0.169 to 0.378 and a mean of 0.093, which suggests a general pattern of random mating. Similarly, low mean values for Fis (0.093), F (0.089), Fis (0.089), Fit (0.130) and Fst (0.045) supports the assertion that inbreeding was limited due to outcrossing with relatively high level of gene-flow (Nm = 5.292). The analysis of molecular variance (AMOVA) revealed that only 1% of the total variations observed in the sampled populations is accounted for by the population differences while individual differences accounted for 85%. The UPGMA phylogenetic tree revealed that the Uda and Yankasa populations are closer to each than each is to Balami. Thus, it can be concluded that sufficient genetic variation exist in the studied Nigerian sheep breeds and these populations are unlikely to decline due to inbreeding.  

scholarly journals Bioactive Compounds in Tomatoes at Different Stages of Maturity

2018 ◽  
Vol 72 (2) ◽  
pp. 85-90 ◽  
Author(s):  
Māra Dūma ◽  
Ina Alsiņa ◽  
Laila Dubova ◽  
Ieva Erdberga
Keyword(s):  
Vitamin C ◽  
Bioactive Compounds ◽  
Health Benefits ◽  
Maturity Stage ◽  
Mean Values ◽  
Tomato Variety ◽  
The Mean ◽  
Quantitative Changes ◽  
High Level ◽  
Unripe Fruits

AbstractTomato is known as a vegetable with several health benefits due to its high level of bioactive compounds, especially lycopene, phenolics, and vitamin C. The effect of tomato variety and stage of maturity on the bioactive compounds concentration was studied. Ten tomato varieties were grown and collected from a greenhouse at two different stages of ripening. The obtained results showed that there were significant differences in the mean values between analysed parameters according to the stage of ripening and variety. The highest concentration of vitamin C was determined for variety Sakura F1 at maturity stage, and the lowest for variety Sunstreem F1 for unripe fruits. The concentration of phenols and flavonoids increased during tomato ripening and the highest rate was observed for variety Naget F1 (from 7.86 mg·100g−1to 14.34 mg·100 g−1(phenols) and flavonoids from 6.09 mg·100 g−1to 10.03 mg·100 g−1. The concentration of lycopene in the unripe stage was low (mostly about 1 mg·100 g−1) and the most quantitative changes and the highest concentration of lycopene in full maturity stage was determined for variety SV0946TS (27.11 mg·100 g−1) and variety NectarF1 (16.81 mg·100 g−1).

scholarly journals Haematological Effect of Toluene in Wistar Rats

2019 ◽  
pp. 1-7
Author(s):  
Victoria C. Obinna ◽  
Gabriel O. Agu
Keyword(s):  
Haemoglobin Concentration ◽  
Oral Exposure ◽  
Albino Rats ◽  
Oral Gavage ◽  
Mean Values ◽  
Haematological Effect ◽  
Group A ◽  
The Mean ◽  
High Level ◽  
Eosinophil Counts

Toxicity of toluene arising from solvent abuse, occupation hazards and environmental pollution has generated a lot of concern in recent times. Young people are getting more involved in the abuse of toluene by deliberate inhalation of toluene-containing substances which may result in high level of exposure to toluene. This abuse may have adverse effect on their health. This study was therefore designed to investigate the effect of oral exposure to toluene on haematological parameters using male albino rats as model. Twenty animals were randomly assigned to 4 groups of 5 rats each. Group A (Control) received 0.5 ml of olive oil (vehicle) while groups B, C and D received 31.8, 63.6 and 127.2 mg/kg respectively of toluene for 21 days by oral gavage. At the end of the treatments, the animals were anaesthetized and blood samples were collected for haematological investigations. No significant (p >0.05) variation occurred in the mean values of PCV, haemoglobin concentration, RBC and platelet counts in comparison with the control. There was a significant (p <0.05) increase in total WBC and lymphocyte counts with a higher increase (p<0.01) in total neutrophil count.  No significant (p >0.05) change in the total monocyte and eosinophil counts relative to the control. Oral administration of toluene as used in this study may be toxic to health depending on the dose and duration of exposure.

scholarly journals Statistical study on bodyweight and body fat among students from the Physical Education and Sport Faculty in Iaşi

2016 ◽  
Vol 9 (16) ◽  
pp. 35-39
Author(s):  
Marius Neculăeş ◽  
Paul Lucaci
Keyword(s):  
Body Mass Index ◽  
Physical Education ◽  
Body Mass ◽  
Body Fat ◽  
Mean Value ◽  
The Body ◽  
Warning Sign ◽  
Fat Percentage ◽  
Mean Values ◽  
The Mean

Abstract This papers aims at identifying the mean body mass index and body fat percentage among students from Physical Education and Sport Faculty in Iaşi. The study was conducted on a series of 297 students majoring in Physical Education and Sports, but also in Kinetotherapy and Special Motricity (bachelor studies and master studies). By determining the body mass index mean and body fat mean for students within five specialties, we managed to classify them into categories. The assessment of body mass index was conducted using the standard formula BMI= weight in kilograms/height in meters2 and that of body fat using the Fat Track II body fat calliper. Research findings highlighted that the body mass index mean values for each academic year range within normal parameters. As for body fat, the mean value of all academic years ranges in the “very good” and “good” categories. Whereas most mean values range within normal limits, it must not be neglected that overweight or underweight cases were also pinpointed, which should be a warning sign for the future specialists in the field of Physical Education and Sports.

scholarly journals Anthropometric measurements and amounts of body fat and serum cholesterol in samples of three Nigerian populations

1975 ◽  
Vol 33 (2) ◽  
pp. 141-148 ◽  
Author(s):  
R. S. Watson ◽  
K. M. Etta
Keyword(s):  
Body Weight ◽  
University Students ◽  
Body Fat ◽  
Serum Cholesterol ◽  
Skinfold Thickness ◽  
Mean Values ◽  
Cholesterol Levels ◽  
The Mean ◽  
Male Subjects ◽  
Triceps Skinfold Thickness

1. Skinfold thicknesses, arm circumferences, heights, weights and serum cholesterol levels were determined in ninety-one university students, 207 soldiers and 102 out-patients, all male subjects. Some of these measurements were used to determine the amount of body fat, Quetelet's index and mid-arm muscle circumference2. Quetelet's indices and body-fat values obtained were similar to previously reported values for lean or moderately built males3. Serum cholesterol levels were generally low, with means ranging from 3·98 mmol/1 for 18- to 29-year-old students to 5·19 mmol/l for 40- to 69-year-old out-patients4. The mean values for triceps skinfold thickness, the amount of body fat and serum cholesterol levels for healthy adults obtained in this study are probably normal for northern Nigerian populations5. There was a significant correlation between the amount of body fat and values for triceps and subscapular skinfold thicknesses, Quetelet's index and body-weight for all adults. The correlation between muscle circumference and the amount of body fat was significant for all subjects except adult soldiers.

scholarly journals Comparison of Measurement of Central Corneal Thickness with Spectral Domain Optical Coherence Tomography and Standard Ultrasonic Pachymeter in Premature Infants

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Emre Hekimoglu ◽  
Muhammet Kazım Erol ◽  
Devrim Toslak ◽  
Deniz Turgut Coban ◽  
Berna Doğan ◽  
...  
Keyword(s):  
Premature Infants ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Significant Difference ◽  
The Mean ◽  
Highly Correlated ◽  
High Level ◽  
Sd Oct

Purpose. To evaluate the repeatability of measurement of central corneal thickness (CCT) by spectral domain optical coherence (SD-OCT) in premature infants and compare it to CCT measurement by ultrasonic pachymetry (USP).Methods. Three CCT measurements of the left eyes of 50 premature infants were obtained by SD-OCT using the iVue system. 10 CCT measurements of each 28 left eyes of 28 infants were obtained by USP using the Pacscan 300P system. Bland-Altman plots were developed and the limit of agreement (LoA) was determined to compare the mean of the SD-OCT and USP measurements.Results. No statistically significant difference was found among the 3 CCT measurements by SD-OCT. Both USP and SD-OCT have been performed for only left eyes of 28 of the 50 babies. Those results have been compared with each other. A statistically significant difference was found between the mean CCT measurements by SD-OCT and USP (p<0.05). The LoA between the SD-OCT and USP measurements ranged from 11.4 to −64.1.Conclusions. CCT can be measured using the iVue SD-OCT system with a high level of repeatability. Although measurement of CCT by SD-OCT and USP is highly correlated, the 2 systems cannot be used interchangeably in premature infants.

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