scholarly journals Determination of Energy Absorption on Seat Regions of Footwear for the Obese

2019 ◽  
Vol 27 (4(136)) ◽  
pp. 76-80
Author(s):  
Selvaraj Mathivanan ◽  
Ranganathan Mohan ◽  
Palanisami Balachander
Keyword(s):  
Energy Absorption ◽  
Slope Angle ◽  
The Body ◽  
Coefficient Of Determination ◽  
Predictive Equation ◽  
Absorbed Energy ◽  
Heel Height ◽  
Therapeutic Benefits ◽  
A Value

Ideal footwear with a design configuration is necessitated as a tool of rehabilitation to render therapeutic benefits, especially for obese individuals who are experiencing greater risk during locomotion. Energy absorption is found to depend on variables like heel height, slope angle and load exerted by the body mass index. Statistical analysis was carried out to formulate a predictive equation for absorbed energy. It was found that a heel height of 30 mm offers an optimum base for further design of footwear. A coefficient of determination (R2) with a value of 0.933 indicates that the model fits the experimental data nicely. Hence, 30 mm 20 degree is suggested for designing ideal footwear as it enables load dissipation and energy absorption to render foot-comfort benefits and advantages to the user.

scholarly journals Determination of the Chemical Stability of Cyanocobalamin in Medical Food by a Validated Immunoaffinity Column-Linked HPLC Method

2022 ◽  
Vol 2022 ◽  
pp. 1-8
Author(s):  
Wonjong Lee ◽  
Yoon-Bok Lee ◽  
Moon Haeng Huh ◽  
Jae Kwon Choi
Keyword(s):  
Hplc Method ◽  
The Body ◽  
Coefficient Of Determination ◽  
Analysis Method ◽  
Food Matrix ◽  
Medical Food ◽  
A Value ◽  
Medical Foods ◽  
The Stability

Cyanocobalamin, which plays an essential role in the body, is a synthetic form used in medical food. This present study aimed to develop an HPLC analysis method for determination cyanocobalamin and investigate the stability of cyanocobalamin in medical food. Validation of the developed method for cyanocobalamin was evaluated with linearity, LOD, LOQ, and accuracy. The linearity of this method was calculated with a value of the coefficient of determination (R2) ≥ 0.999. LOD and LOQ were 0.165 and 0.499 μg/kg, respectively. The recovery of medical food matrixes for accuracy was more than 97.63%. The validated method was applied for determining cyanocobalamin from medical foods. The developed method was used to examine the additives for cyanocobalamin protection. Ferric chloride and sorbitol alleviated cyanocobalamin degradation from heat and ascorbic acid. Especially, sorbitol showed a superior protective effect during the medical food production process. Therefore, this study suggests that sorbitol is a sweetener additive that prevents cyanocobalamin degradation by heat and the food matrix in medical food processing.

Determination of Lead Content in Red Colored Lipsticks from Mandalay Market by Flame Atomic Absorption Spectrophotometer

2018 ◽  
Vol 30 (3) ◽  
pp. 167-173
Keyword(s):  
Sampling Procedure ◽  
The Body ◽  
Lead Content ◽  
Social Psychological ◽  
Allowable Limit ◽  
Flame Atomic Absorption ◽  
Therapeutic Benefits ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Exposure Levels

Red colored lipstick is the most widely used cosmetic product. Although lipstick gives a lot of social, psychological and therapeutic benefits, it may harm the consumers. Because some lipsticks contain a considerable amount of heavy metal especially lead. Lead is being used in lipstick mainly for the pigments required to obtain needed colors. Lead accumulates in the body over time and lead-containing lipstick applied several times a day, every day, combined with lead in water and other sources, could add up to significant exposure levels. Therefore, this study was aimed to determine lead content in red colored lipsticks from market. This study was laboratorybased, analytical study by using 25 lipstick samples. Red colored lipsticks were bought from Mandalay Market by random sampling procedure and they were completely coded to avoid the bias. Then, lead content in coded samples was determined by Flame AAS according to International Conference on Harmonization (ICH) guideline. Lead contents of 88% of the lipsticks samples were more than specified limit (20 ppm) of Food and Drug Administration, United States. All of them, lead content was highest in counterfeit lipsticks group. Among the tested lipstick samples, lipstick with lowest lead content was LE-RL 01 (15.74 ppm) and the lipstick with highest lead content was CF-RL 01(60.09 ppm). In conclusion, lead contents of red colored lipsticks (22 out of 25) from market samples were higher than allowable limit (20 ppm).

scholarly journals Magnitude Scales in Central Greece

2018 ◽  
Vol 40 (3) ◽  
pp. 1114 ◽  
Author(s):  
G. Kaviris ◽  
P. Papadimitriou ◽  
K. Makropoulos
Keyword(s):  
Goodness Of Fit ◽  
Body Wave ◽  
Velocity Model ◽  
The Body ◽  
Moment Magnitude ◽  
Coefficient Of Determination ◽  
Gulf Of Corinth ◽  
Duration Magnitude ◽  
The Moment

The Gulf of Corinth is one of the most active tectonic rifts around the world. Data used in the present study are obtained by the four digital stations of the Cornet Network which was installed in 1995 around the Eastern Gulf of Corinth. A velocity model was calculated, while the majority of local events were located within the Gulf of Corinth. Main scope of the study is the determination of a reliable earthquake magnitude. Concerning the duration magnitude Mo, a multiple linear regression technique was developed for the determination of the constants α, β and γ with very satisfactory values of errors. The coefficient of determination (goodness of fit) R2 was found equal to 0.99. Following, the moment magnitude Mw, which is considered to be the most reliable magnitude scale, was determined. Spectral analysis was applied for the calculation of the seismic moment M0 and a seismic catalogue was created. After the determination of the moment magnitude Mw and of the duration magnitude MD for the same dataset, a relationship between them was obtained, according to which Mw is systematically larger than Mjy Relationships between these magnitudes, the local magnitude ML and the body wave magnitude mb  were also obtained.

scholarly journals Analisis Pengaruh Pendidikan Kewirausahaan dan Kecerdasan Adversitas terhadap Intensi Berwirausaha Mahasiswa

2020 ◽  
Vol 10 (2) ◽  
pp. 177
Author(s):  
Santi Rohmah ◽  
Maria Aghata Sri Widya
Keyword(s):  
Data Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Sampling Technique ◽  
Entrepreneurship Education ◽  
Entrepreneurial Intentions ◽  
Coefficient Of Determination ◽  
A Value

The purpose of this study was to determine the effect of entrepreneurship education and adversity intelligence on the entrepreneurial intentions of students of University Bhinneka PGRI. The population of this study 41 students and the instrument used was a questionnaire. The sampling technique used is saturation sampling. Data analysis in this study used multiple linear regression. The result of this study indicates that there is a positive and significant effect between entrepreneurship education on entrepreneurial intentions with a tcount (2,153) > ttable(2,020) and a significant value of 0,038 < 0,05. Adversity intelligence has a positive and significant effect on entrepreneurial intentions with a tcount (2,215) > ttable(2,020) and significant value of 0,033 < 0,05. While simultaneously there is a positive and significant effect between entrepreneurship education and adversity intelligence on entrepreneurial intentions whit a value a fcount(31,216) > ftable (3,23) with a significant level of 0,000 <0,05. The coefficient of determination of this amounted to 0,602. It can be concluded that this study 60,2% is influenced by entrepreneurship education and adversity intelligence. While the remaining 39,8% is influenced by other variables

scholarly journals PENGARUH MOTIVASI DAN LINGKUNGAN KERJA TERHADAP KINERJA PEGAWAI PADA KANTOR KECAMATAN PANAKKUKANG

2019 ◽  
Vol 2 (2) ◽  
pp. 23-31
Author(s):  
Aprizal Aprizal
Keyword(s):  
Work Environment ◽  
Employee Performance ◽  
Linear Regression Analysis ◽  
Working Hours ◽  
Multiple Linear Regression Analysis ◽  
Coefficient Of Determination ◽  
District Office ◽  
A Value ◽  
Environment Variable

Based on factors that affect the performance of employees at the panakkukangsub-district office, the city of Makassar can be said to be not optimal. Where, seen fromseveral symptoms, among others, lack of enthusiasm in work, they are more concernedwith discuccions outside of work than looking for or completing the work itself, there arestill some employees who come or enter the office not on time as well as leave the officenot according to the prevailing working hours. Then an inadequate work environment sothat employee performance declines.The purpose of this study was to dtermine the effectof motivation and work environment simultaneously on employee performance at the macassar city sub-district panakkukang office. With a sample of 53 responden from 53populations. By using multiple linear regression analysis. The results of study show thatthe motivation variable has a positive and significant effect on employee performancewith a significant value 0.002 and the work environment variable with a value of 0.002.Adjusted coefficient of determination of ,451 or 45,1%. This means that employee performance can be explained by motivation and work environment while the remaining7.9% the possibility can be explained by other factors outside of the model included inthis study, for example, work stress, work discipline, and leadership.

scholarly journals Karakterisasi Morfologi Ikan Bujuk (Channa lucius) pada Perairan Danau Singkarak Sumatera Barat, Rawa Banjiran Tanjung Jabung Timur Jambi dan Rawa Banjiran Kampar Riau

2014 ◽  
Vol 15 (1) ◽  
pp. 1 ◽  
Author(s):  
Azrita Azrita ◽  
Hafrijal Syandri ◽  
Dahelmi Dahelmi ◽  
Syaifullah Syaifullah ◽  
Estu Nugroho
Keyword(s):  
Principal Component Analysis ◽  
Morphological Characteristics ◽  
Principal Component ◽  
Environmental Water ◽  
Component Analysis ◽  
The Body ◽  
Meristic Characters ◽  
Morphometric Characters ◽  
A Value

Overfishing, the use of unfriendly-environmental fishing gears, changes of environmental water conditions and diversity of habitats are threaten the continuity of Bujuk fish (Channa lucius) and generate the morphologycal diversity. Consequently, appropriate conservation efforts are needed to preserve the fish. The first phase of these efforts were done through morphological approach. The research was held in 2010 in Singkarak Lake West Sumatera Province, in floodplain, Pematang sub-district Lindung Mendahara Ulu Regency East Tanjung Jabung, Province of Jambi, and in floodplain Mentulik Regency Kampar Kiri Hilir Riau Province. The aims of the research were to analyze the morphological characteristic of the fish with Principal Component Analysis (PCA) and to determine the range of similarity between populations of the fish. Determination of the location of fish sampling was conducted by proposive sampling in which there were 30 samples for every research location. The measurement of the specimen was done by digital calipers on the left of the body, at 4 meristic characters and 19 morphometric characters. The data obtained were analyzed by One Way ANOVA and principal component analysis using Statistical software version 13. The results showed that based on the analysis of morphological characteristics of bujuk fish, populations that exist in Lake Singkarak were different from those of Pematang Lindung floodplain sub-district Mendahara Ulu Regency East Tanjung Jabung Jambi Province and Mentulik Regency floodplain Kampar Kiri Hilir Province Riau. The meristic difference was on the number of scales along the lateral line with a value of 0.783. While the main difference on morphometric characters were the snout length with a value of 0.848, and length of upper jaw with a value of 0.847. Thus, the study showed that the fish was isolated geographically into two groups, which were Jambi-Riau population and Singkarak Lake population.

scholarly journals PENGEMBANGAN MODEL REGRESI POLINOMIAL BERGANDA PADA KASUS DATA PEMASARAN

2013 ◽  
Vol 12 (2) ◽  
pp. 149 ◽  
Author(s):  
Julyanti S Malensang ◽  
Hanny Komalig ◽  
Djoni Hatidja
Keyword(s):  
Linear Regression ◽  
Regression Model ◽  
Polynomial Regression ◽  
Predictor Variable ◽  
Coefficient Of Determination ◽  
Linear Regression Models ◽  
A Value ◽  
Marketing Data ◽  
Set Up

PENGEMBANGAN MODEL REGRESI POLINOMIAL BERGANDA PADA KASUS DATA PEMASARANABSTRAK Regresi polinomial merupakan regresi linier berganda yang dibentuk dengan menjumlahkan pengaruh variabel prediktor (X) yang dipangkatkan secara meningkat sampai orde ke-k. Model regresi polinomial, struktur analisisnya sama dengan model regresi linier berganda. Artinya, setiap pangkat atau orde variabel prediktor (X) pada model polinomial, merupakan transformasi variabel awal dan dipandang sebagai sebuah variabel prediktor (X) baru dalam linier berganda. Model terbaik dari kelima model yang telah diuji adalah persamaan regresi model ke-5. Hal ini dapat dilihat dari nilai koefisien determinasi sebesar 99,1% dan nilai R-Sq(adj) = 98,8%, karena nilai R2 mendekati nilai yang telah diatur dan berdasarkan pengujian yang dilakukan ternyata seluruh koefisien-koefisien dari setiap variabel bebas signifikan serta ada kelengkungan yang bersifat kubik (pangkat 3) terhadap data X3 terhadap Y. Kata kunci: Pemasaran, Regresi polynomial. DEVELOPMENT OF MULTIPOLYNOMIAL REGRESSION MODEL ON MARKETING DATA CASE ABSTRACT Polynomial regression is linear regression multiple were created by summing the effect of each predictor variable (X) is raised to increase to the order of the k.  Polynomial regression model, has the same structure with linear regression models. That is, any rank or order predictor variable (X) in polynomial models, an initial variable transformation and is seen as a predictor variable (X) has the linear regression. The best model of the six models tested were equation regression model to-5.  It can be seen from the value of the coefficient of determination of 99.1% and a value of R-Sq (adj) = 98.8%, due to the value of R2 close to the value that has been set up and based on tests performed turns all the coefficients of each independent variable significantly and there are cubic curvature (rank 3) to the data X3 to Y. Keywords : Marketing, Polynomial regression.

Gender determination of caucasoid hair using image analysis

1993 ◽  
Vol 51 ◽  
pp. 216-217
Author(s):  
T.B. Ball ◽  
W.M. Hess
Keyword(s):  
Image Analysis ◽  
Cross Sections ◽  
Scalp Hair ◽  
The Body ◽  
Equivalent Diameter ◽  
Cross Sectional ◽  
Hair Samples ◽  
Length Width ◽  
Morphological Differences

It has been demonstrated that cross sections of bundles of hair can be effectively studied using image analysis. These studies can help to elucidate morphological differences of hair from one region of the body to another. The purpose of the present investigation was to use image analysis to determine whether morphological differences could be demonstrated between male and female human Caucasian terminal scalp hair.Hair samples were taken from the back of the head from 18 caucasoid males and 13 caucasoid females (Figs. 1-2). Bundles of 50 hairs were processed for cross-sectional examination and then analyzed using Prism Image Analysis software on a Macintosh llci computer. Twenty morphological parameters of size and shape were evaluated for each hair cross-section. The size parameters evaluated were area, convex area, perimeter, convex perimeter, length, breadth, fiber length, width, equivalent diameter, and inscribed radius. The shape parameters considered were formfactor, roundness, convexity, solidity, compactness, aspect ratio, elongation, curl, and fractal dimension.

Vitamin A Value of Plant Food Provitamin A - Evaluated by the Stable Isotope Technologies

2014 ◽  
Vol 84 (Supplement 1) ◽  
pp. 25-29 ◽  
Author(s):  
Guangwen Tang
Keyword(s):  
Stable Isotope ◽  
Vitamin A ◽  
Provitamin A ◽  
Animal Origin ◽  
Plant Food ◽  
Plant Foods ◽  
A Value ◽  
Provitamin A Carotenoids ◽  
Β Carotene

Humans need vitamin A and obtain essential vitamin A by conversion of plant foods rich in provitamin A and/or absorption of preformed vitamin A from foods of animal origin. The determination of the vitamin A value of plant foods rich in provitamin A is important but has challenges. The aim of this paper is to review the progress over last 80 years following the discovery on the conversion of β-carotene to vitamin A and the various techniques including stable isotope technologies that have been developed to determine vitamin A values of plant provitamin A (mainly β-carotene). These include applications from using radioactive β-carotene and vitamin A, depletion-repletion with vitamin A and β-carotene, and measuring postprandial chylomicron fractions after feeding a β-carotene rich diet, to using stable isotopes as tracers to follow the absorption and conversion of plant food provitamin A carotenoids (mainly β-carotene) in humans. These approaches have greatly promoted our understanding of the absorption and conversion of β-carotene to vitamin A. Stable isotope labeled plant foods are useful for determining the overall bioavailability of provitamin A carotenoids from specific foods. Locally obtained plant foods can provide vitamin A and prevent deficiency of vitamin A, a remaining worldwide concern.

Fast Method for the Determination of Residual Solvents in Radiopharmaceutical Products

2017 ◽  
Vol 68 (4) ◽  
pp. 666-670 ◽  
Author(s):  
Mirela Mihon ◽  
Catalin Stelian Tuta ◽  
Alina Catrinel Ion ◽  
Dana Niculae ◽  
Vasile Lavric
Keyword(s):  
Gas Chromatography ◽  
Control Method ◽  
Limit Of Detection ◽  
The Body ◽  
Biologically Active ◽  
Injection Technique ◽  
Fast Method ◽  
Residual Solvent ◽  
Residual Solvents

The aim of this work was the development and validation of a fast analytical method to determine the residual solvents content in radiopharmaceuticals such as: 18F-Fluorodeoxyglucose (18F-FDG), 18F-Fluoroestradiol (18F-FES), 18F-Fluorothymidine (18F-FLT),18F-Fluoromisonidazole (18F-FMISO). Radiopharmaceuticals are radioactive preparations for medical purposes used in nuclear medicine as tracers in diagnostic imaging and treatment of certain diseases. Positron Emission Tomography (PET) is a medical imaging technique that consists in introducing into the body of a small amount of a biologically active chemical compound labelled with a short lived positron-emitting radioisotope (18F, 11C, 68Ga). Residual solvents are critical impurities in radiopharmaceuticals that can affect labelling, stability and physicochemical properties of drugs. Therefore, the determination of these solvents is essential for quality control of radiopharmaceuticals. Validation of the control method for residual solvents by gas chromatography is referred by the European Pharmacopoeia using a special injection technique (head space). The parameters of the method, which comply with International Conference on Harmonization guidelines, are: accuracy, precision, linearity, limit of detection, limit of quantification and robustness. The proposed method (direct gas chromatography injection) proved to be linear, precise, accurate and robust. Good linearity was achieved for all the solvents and correlation coefficients (R2) for each residual solvent were found more than 0.99.

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