scholarly journals Harmony concept of craniofacial morphology among young Serbian population on Kosovo and Metohia

2021 ◽  
pp. 45-45
Author(s):  
Aleksandrija Djordjevic ◽  
Jasna Pavlovic ◽  
Vladanka Vukicevic ◽  
Amila Vujacic ◽  
Sanja Simic ◽  
...  

Background/Aim. Analysis of cephalometric value of profile radiographs are very important for orthodontic diagnosis and planning of therapy. These values differ morphologically in dependence of ethic and racial affiliation. Aim of this study was to confirm variations of cephalometric norms and extent of their value, and according to them confirm the harmony concept of craniofacial morphology among young Serbian population on Kosovo and Metohia. Methods. This retrospective study comprised 183 profile radiograms from Kosovo and Metohia, aged 8-33, from which Class I was ascertained among 82 patients (53 female and 29 male). Five cephalometric angles were measured and analysed. Pearson correlation coefficients was used to define the strength of correlation between the five variables. Bivariable linear regression was used to form harmonious combinations of individual values in insight of craniofacial harmonious form. Multiple regression and standard error were used to form harmonious schema. Results. Linear regression equations were used to define cephalometric floating norms. They have helped us form a harmonious box and harmonious schema of craniofacial norms of the participants. Extent of harmonious value for orthognathic profile varies for SNA 78? - 81?, SNB 75.1? - 78.1?, NL-NSL 11.5? - 5.5?, NSBa 134.7? - 125.8? and ML-NSL 40.5? - 30.6?. Conclusion. Cephalometric floating norms that describe the individual craniofacial pattern among young Serbian population on Kosovo and Metohia, determined and defined of five cephalometric variables, are presented in the form of harmonious box and harmonious schema and can accurately determine the craniofacial pattern.

2009 ◽  
Vol 79 (6) ◽  
pp. 1162-1168 ◽  
Author(s):  
Marian Almyra Sevilla-Naranjilla ◽  
Ingrid Rudzki-Janson

Abstract Objective: To construct a harmony box based on correlated cephalometric variables, which may serve as a valuable diagnostic tool in orthodontic treatment planning, by analyzing the harmonious relationships of existing individual craniofacial patterns among Filipinos. Materials and Methods: Eighty-one subjects, 37 females and 44 males, were selected from the student population of a University according to established inclusion criteria. Five cephalometric angular measurements were obtained and digitized. Pearson correlation coefficients described the high association among the five variables. The bivariate linear regression analysis was used to construct a harmony box, which contained the cephalometric floating norms of the five correlated variables. Multiple regression analysis and the standard error of the estimate were calculated to construct the harmony schema, which describes the individual craniofacial pattern. Results: Correlations between the five variables were significant at .001 and .05 levels. Linear regression equations with corresponding r2 and standard error of the estimate (SE) were illustrated as the harmony box. The multiple correlation coefficient R, the adjusted R2, and the SE when one of the five measured variables was predicted from the remaining four by means of a multiple regression analysis were displayed as the harmony schema. Conclusion: The cephalometric floating norms describing the individual craniofacial pattern among Filipinos were established based on five correlated variables in the form of a harmony box.


2012 ◽  
Vol 113 (4) ◽  
pp. 271-278
Author(s):  
Adam Řeháček ◽  
M. Janega ◽  
P. Hofmanová ◽  
T. Dostálová

The purpose of this study was to establish floating cephalometric norms for the description of the individual skeletal pattern in Czech adults. Floating norms provide a method of analysis that uses the variability of the associations among suitable cephalometric measures, on the basis of the regression model combining both sagittal and vertical skeletal parameters. Harmony box is a simple and useful tool for diagnostics of orthodontic anomalies according to individual cephalometric norms. 118 subjects, 53 male and 65 female, from Czech population were selected. The method of multiple regression analysis was used to determine interdependence among five cephalometric variables of the sample. Linear regression equations with corresponding r2 and standard error of the estimate (SE) were then illustrated as the harmony box. The results construct a harmony box based on correlated cephalometric variables. The multiple regression analysis of the data is graphically illustrated as a harmony schema which divides harmony box in three zones according to the type of the face – prognathic, orthognathic and retrognathic. The cephalometric floating norms describing the individual craniofacial pattern among Czech adults were established based on five correlated variables in the form of a harmony box.


Author(s):  
Rodrigo Portillo- Salgado ◽  
Benigno Ruiz- Sesma ◽  
Paula Mendoza- Nazar ◽  
José Guadalupe Herrera- Haro ◽  
Jaime Bautista- Ortega ◽  
...  

This study aimed to evaluate external and internal quality traits and determine prediction equations for some of these traits in eggs of Mexican native turkey hens. A total of 72 eggs from native turkey hens in the laying stage raised in rural municipality of Villaflores, Chiapas were measured. The external traits evaluated were: egg weight (EW), polar diameter (PD), equatorial diameter (ED), egg shape index (SI), shell weight (SW), shell percentage (SP), egg surface area (ESA) and shell weight per unit surface area (SSA). The internal traits were: albumen height (AH), yolk height (YH), albumen weight (AW), yolk weight (YW), Haugh units (HU), albumen percentage (AP), yolk percentage (YP) and yolk color (YC). The data were analyzed with descriptive statistics and Pearson correlation coefficients (r) and linear regression using the SAS program, ver. 9.4. The values obtained for the external egg quality traits showed greater variability. Pearson's correlation coefficients between external and internal traits were positive and moderately significant (P <0.05), as well as highly significant (P <0.0001), and ranged from r = 0.31 (EW vs PD) to r = 0.99 (ED vs ESA). All linear regression equations to predict EW, SW, AW and YW were found to be significant (<.0001). The best predictors of EW were PD, SI, SW and ESA (R2 = 76%). SW and YW traits can be adequately predicted using the EW and SI values together (R2 = 59% and R2 = 74%, respectively), while the AW can be predicted from the EW (R2 = 33%). Based on the results obtained, it is suggested to implement selection programs to improve the quality parameters of the native turkey hen egg in Mexico.


1975 ◽  
Vol 38 (3) ◽  
pp. 560-563 ◽  
Author(s):  
A. Weltman ◽  
V. Katch

Theoretical justification for the preferential use of casing (circumference) measurements for estimating total body volume (TBV) and body density (Db) was studied in 24 female subjects (mean age 20 yr, mean wt 58 kg). Multiple linear regression equations resulted in R = On-0.99 with a standard error no larger than 1.69 liters for predicting TBV and R = Oa-Oh with a standard error no larger than 0.0084 g/ml for predicting Db. Validations of these regression equations using two additional samples of subjects resulted in validity coefficients of r = 0 –0.99. All the correlation coefficients were statistically significant (P less than 0.01).


2020 ◽  
Vol 42 (4) ◽  
Author(s):  
Lucas Titonelli Ferreira Donato ◽  
Sérgio Luiz Rodrigues Donato ◽  
Cleiton Fernando Barbosa Brito ◽  
Varley Andrade Fonseca ◽  
Carlos Nick Gomes ◽  
...  

Abstract Models for estimating leaf area of bananas found in the literature are not suitable for lanceolate type leaves occurring at the vegetative stage of ratoon suckers dependent of mother plant. The objective was to determine equations for estimating the leaf area of ‘Prata-Anã’ and ‘BRS Platina’ banana plants with lanceolate type leaves. 212 and 164 lanceolate type leaves having 10 cm-wide lamina or less were collected from ‘Prata-Anã’ and ‘BRS Platina’ banana plants of 90 days of age or less, respectively. Width (W), length (L), width/length ratio (WLR), and scanner-measured leaf area (LAscanner) were determined. Using the backward elimination procedure, simple and multiple linear regression equations were fitted to the relationship between leaf dimensions (W, L and WLR) and LAscanner. To evaluate how precise the equations are in predicting leaf area (LApredicted), Pearson correlation coefficients were calculated between LA and LApredictedscanner. The models highly correlated with LAscanner at 1% of significance level. The models are and LALL() = Prata-Anã = - 0,0133624 + 0,000489859**L - 0,00183182 **W and LALL(Platina) 0,00237026 + 0,004781**W - 0,096802** WLR.


2021 ◽  
Vol 17 ◽  
Author(s):  
Reza Sadeghi ◽  
Mahmood Reza Masoudi ◽  
Athina Patelarou ◽  
Narges Khanjani

Background: Hypertension is a leading risk factor for morbidity and mortality around the world. Preventing this health problem is considered an important priority. The aim of this study was to investigate the predictive factors for care and control of hypertension (CCH) according to the health belief model (HBM) in patients with hypertension during the COVID-19 epidemic in Sirjan, Iran. Methods: In this cross-sectional study, participants were chosen by simple random sampling. Data were collected by a valid and reliable researcher-made questionnaire from 200 patients with high blood pressure aged 30-60 years. Data were analyzed by SPSS21 and analysis based on descriptive statistics, Pearson correlation coefficients and linear regression were conducted. Results: The results of Pearson correlation coefficients showed that there was a significant correlation between almost all constructs of Health Belief Model (HBM), but the strongest correlations were between self-efficacy and perceived susceptibility (r = 0.940, P ≤ 0.001), and between perceived barriers with perceived benefits (r = -0.615, P ≤ 0.001). According to linear regression, perceived barriers (β = -0.291), cues to action (β = -0.590), and knowledge (β = 0.973) predicted more than 26% of CCH variability. Knowledge had a stronger role than other variables. Conclusions: The results of this study show that the constructs of the Health Belief Model can predict CCH in hypertensive patients. This model can be used as a tool for designing and implementing educational interventions to increase CCH among hypertensive patients.


2016 ◽  
Vol 106 (1) ◽  
pp. 60-67
Author(s):  
Kevin M Smith ◽  
Simon Geletta ◽  
Austin McArdle

Background: We assessed the differences in podiatric medical students' clinical professionalism objective scores (CPOSs) by comparing a previous nonrubric evaluation tool with a more recently implemented objective-centered rubric evaluation tool. This type of study has never been performed or reported on in the podiatric medical education literature.Methods: We conducted a retrospective analysis of 89 third-year podiatric medical students between academic years 2010-2011 and 2011-2012. A Pearson correlation coefficient analysis was performed to compare CPOSs from the students' first (CPOS1) and second (CPOS2) rotations. A correlation analysis was performed comparing students' grade point averages (GPAs) with each of the individual CPOSs to verify the validity of the rubric evaluation tool.Results: The Pearson correlation coefficients for the relationship between 2012 CPOS1 and CPOS2 and GPA were r = 0.233 (P ≤ .093) and r = 0.290 (P &lt; .035) and for the relationship between 2013 CPOS1 and CPOS2 and GPA were r = 0.525 (P = .001) and r = 0.730 (P &lt; .001).Conclusions: These findings suggest that the use of a rubric in the evaluation of podiatric medical students' CPOSs is correlated with their GPAs, and CPOS2 demonstrated a higher correlation than CPOS1. We believe that implementation of the rubric evaluation tool has increased the accuracy of the evaluation of podiatric medical students with respect to CPOSs.


2008 ◽  
Vol 45 (6) ◽  
pp. 661-666 ◽  
Author(s):  
Geer M. van den Dungen ◽  
Edwin M. Ongkosuwito ◽  
Irene H. A. Aartman ◽  
Birte Prahl-Andersen

Objective: Comparison of craniofacial morphology in bilateral cleft lip and palate patients to that of a noncleft control group at the age of 15 years. Design: A cross-sectional study of cephalometric data. Subjects and Methods: Cephalometric records of 41 consecutive patients (32 boys and 9 girls) with nonsyndromic complete bilateral cleft lip and palate born between 1973 and 1987. The patients were treated by the cleft teams of the Erasmus Medical Centre in Rotterdam and the VU University Amsterdam. The control group of normal Dutch subjects was followed in the Nijmegen Growth Study. From this population, mean cephalometric data were used. Differences in cephalometric measurements and other variables were calculated between the bilateral cleft lip and palate group and the control group. Results: Independent-sample t tests indicated that there was a statistically significant difference between the mean of the cephalometric values of the bilateral cleft lip and palate patients and the control group with respect to all cephalometric variables. Pearson correlation coefficients calculated between angle ANB and the number of operators, number of surgical procedures before 15 years of age, and the year of birth were not significant. Conclusions: Bilateral cleft lip and palate patients treated in the Amsterdam and Rotterdam cleft centers differed significantly from the control group in all measurements. A Class III development due to a less forward positioned maxilla was observed. The vertical measurements indicated a more divergent growth pattern in bilateral cleft lip and palate patients (Ans-Me/N-Me, GoGn-SN, and SN-FFH).


2017 ◽  
Vol 24 (2) ◽  
Author(s):  
Dara Kutsyk ◽  
Eugene Sklyarov

Metabolic syndrome is an epidemic of XXI century. Each of the components of metabolic syndrome (arterial hypertension, hyperglycemia or dyslipidemia) can be a risk factor for chronic kidney disease. However, it remains unknown what plays a key role in the progression of the disease.The objective of the research was to identify early detectors of kidney damage in patients with metabolic syndrome.Materials and methods. The study involved 70 patients with metabolic syndrome. In addition to standard examination methods, markers of endothelial disfunction (hydrogen sulfide and nitrogen monooxide) were measured in venous blood samples and the urine was tested for microalbuminuria. All the patients were divided into 3 groups according to the degree of albuminuria: normoalbuminuria, microalbuminuria and macroalbuminuria. To compare the indices between the groups, the Student’s t-test was used; to determine the relationship between the individual values, the Pearson correlation coefficient (r) was applied.Results. The indicator of systolic blood pressure was higher in patients with microalbuminuria compared to those with normoalbuminuria (163.4±14.4 mmHg, versus 153.0±17.7 mmHg; p<0.01). Hydrogen sulfide level was higher in patients with normoalbuminuria (66.8±7.2 µmol). There was a moderate positive correlation between systolic blood pressure and microalbuminuria (r=0.3804; p<0.01) and a moderate negative correlation between hydrogen sulfide and microalbuminuria (r=0.3404; p<0.01).Conclusions. We revealed a decrease in hydrogen sulfide level to 57.4±7.9 µmol in patients with metabolic syndrome. This may be an early predictor of kidney damage. 


2016 ◽  
Vol 3 (1) ◽  
pp. 46-56
Author(s):  
Lisa Martiah Nila Puspita ◽  
Rifaatul Khoiriyah ◽  
Lukluk Fuada

The study aimed to investigate individual values that involved in planning activities.  This study tested the effect of three type of personal values (achievement, power, and tradition) on budgetary slack. This study used theory of planned behaviour.  To determine the budgetary slack in this survey, 30 accounting students at Bengkulu University as respondents performed the specific task in December 2014. Firstly, they prepared a budget based on the real need, then the slack was created. Data was analysis by using multiple linear regression. The regression results indicated that the value of achievement and power values positively effected on budgetary slack. This meant that the higher the value of a person's achievement and power, the greater budgetary slack occurred. While the value of tradition negatively affected the budgetary slack, which means that the higher the value of tradition in the possession, the smaller the budgetary slack done. The limitation of this study was the measurement of the individual values obtained low result which indicated lack of correlation between the items in questionnaires. Therefore, the suggestion for future research is to improve or review the questionnaires that are used in this study.


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