scholarly journals OSTEOMETRIC ESTIMATION OF SEX FROM MASTOID TRIANGLE IN MALAYSIAN POPULATION

2019 ◽  
pp. 348
Author(s):  
ABDELNASSER IBRAHIM ◽  
ASPALILAH ALIAS ◽  
MOHAMED SWARHIB SHAFIE ◽  
SRIJIT DAS ◽  
FARIDAH MOHD NOR
Keyword(s):  
Classification Accuracy ◽  
T Test ◽  
Stepwise Discriminant Analysis ◽  
Malaysian Population ◽  
Significant Difference ◽  
Males And Females ◽  
Best Parameter ◽  
New Equation ◽  
The Right ◽  
Base Of The Skull

Objective: Determination of sex is one of the most important parameters for conducting biological profile of unknown skeletal remains in anatomical anthropology and forensic medicine. Mastoid bone is useful for the identification of sex, as it is the most protected bone and is resistant to damage, due to its anatomical position at the base of the skull. The aim of this study was to develop new equation for the estimation of sex from mastoid triangle in the Malaysian population. Methods: About 10 parameters were studied on 388 computed tomography scans of crania in 231 males and 157 females. The parameters comprised three sides of mastoid triangle, its perimeter and area on both sides. T-test was used to compare between the right and left sides and between males and females. Stepwise discriminant function was used to reveal the best discriminatory parameter and its classification accuracy. Results: Comparison of means by T-test revealed no difference between the right and left sides in both sexes. T-test showed a significant difference between males and females for all parameters. Perimeter of mastoid triangle was found to be the best parameter by stepwise discriminant analysis. The equation based on perimeter of mastoid triangle was developed with 84.4% classification accuracy. Conclusion: The developed equation could be used to assess sexual dimorphism of fragmented Malaysian crania with intact mastoid region. The achieved cross-validated classification was relatively high compared to that in other previous studies.

scholarly journals OSTEOMETRIC ESTIMATION OF SEX FROM MASTOID TRIANGLE IN MALAYSIAN POPULATION

2018 ◽  
Vol 11 (7) ◽  
pp. 303 ◽  
Author(s):  
Abdelnasser Ibrahim ◽  
Aspalilah Alias ◽  
Mohamed Swarhib Shafie ◽  
Srijit Das ◽  
Faridah Mohd Nor
Keyword(s):  
T Test ◽  
Stepwise Discriminant Analysis ◽  
Biological Profile ◽  
Significant Difference ◽  
Computed Tomography Scans ◽  
Males And Females ◽  
Best Parameter ◽  
The Right ◽  
Base Of The Skull

Objective: Determination of sex is one of the most important parameters for conducting biological profile of unknown skeletal remains in anatomical anthropology and forensic medicine. Mastoid bone is useful for the identification of sex, as it is the most protected bone and is resistant to damage, due to its anatomical position at the base of the skull. The aim of this study was to develop new equations for the estimation of sex from mastoid triangle in the Malaysian population.Methods: About 10 parameters were studied on 388 computed tomography scans of crania in 231 males and 157 females. The parameters comprised three sides of mastoid triangle, its perimeter and area on both sides. T-test was used to compare between the right and left sides and between males and females. Stepwise discriminant function was used to reveal the best discriminatory parameter and its classification accuracy.Results: Comparison of means by T-test revealed no difference between the right and left sides in both sexes. T-test showed a significant difference between males and females for all parameters. Perimeter of mastoid triangle was found to be the best parameter by stepwise discriminant analysis. The equation based on perimeter of mastoid triangle was developed with 84.4% classification accuracy.Conclusion: The developed equation could be used to assess sexual dimorphism of fragmented Malaysian crania with intact mastoid region. The achieved cross-validated classification was relatively high compared to that in other previous studies.

Agreement analysis comparing iPad LCVA and Sloan testing in multiple sclerosis patients

2017 ◽  
Vol 24 (8) ◽  
pp. 1126-1130 ◽  
Author(s):  
Neda Sattarnezhad ◽  
Samantha Farrow ◽  
Dorlan Kimbrough ◽  
Bonnie Glanz ◽  
Brian Healy ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Visual Acuity ◽  
T Test ◽  
Computerized Testing ◽  
Low Contrast ◽  
Significant Difference ◽  
Increased Sensitivity ◽  
The Right ◽  
Multiple Sclerosis Patients ◽  
Paired T Test

Background: Visual symptoms are common in multiple sclerosis (MS). Low-contrast visual acuity (LCVA) testing using Sloan charts has demonstrated increased sensitivity for visual deficits compared to high-contrast acuity testing. Computerized testing of visual acuity may facilitate use in the clinic setting. Objectives: To evaluate the agreement between an iPad-based and Sloan testing of LCVA in a cohort of MS patients. Methods: A total of 38 patients with relapsing-remitting MS were enrolled after providing informed written consent at Partners MS Center, Brigham and Women’s hospital. Monocular LCVA was measured using retroilluminated Sloan chart and iPad-based LogMAR chart. Number of correct letters and agreement between two measurements were assessed for each eye using Bland–Altman analysis and paired t-test. Results: For both eyes, there was no significant difference in number correct between the two measurements using a paired t-test, and there was high correlation between two measurements (oculus dextrus (OD) r = 0.89, p < 0.001; oculus sinister (OS) r = 0.78, p < 0.001). The limits of agreement were −7.9 to +8.5 letters for the right eye and −10.9 to +11.2 letters for the left eye. Conclusion: An iPad-based LCVA test shows good agreement with Sloan testing in MS patients.

scholarly journals MANDIBULAR CANINE INDEX (MCI)

2010 ◽  
Vol 17 (03) ◽  
pp. 459-463
Author(s):  
IRFAN AHMED MUGHAL ◽  
ANWAR SAOOD SAQIB ◽  
FARIDA MANZUR
Keyword(s):  
Medical College ◽  
Significant Difference ◽  
Males And Females ◽  
Mandibular Canine ◽  
Student’S T ◽  
Dental Evidence ◽  
Aseptic Conditions ◽  
Sexual Identification ◽  
The Right ◽  
Mass Disasters

Introduction: Dental evidence is valuable in identification of individuals, especially following mass disasters; estimation of age at death of skeletonised remains and establishing guilt in cases of criminal injury by biting. Mandibular canines are found to exhibit the greatest sexual dimorphism amongst all teeth. Objective: To investigate the accuracy with which gender can be differentiated by using the mandibular canine index in the Punjabi – Pakistani population. Setting: Independent Medical College and Punjab Medical College,  aisalabad. Period: Dec. 2008 to Dec. 2009. Material and Methods: The present study was performed on 200 students, between the age group of 18-25 years, randomly sampled with informed consent (Through 3rd party). Mandibular canine width and intercanine distance were measured with the help of Vernier caliper after observing aseptic conditions. Mandibular canine index was calculated and the observed MCI was compared with the standard MCI value. The data was then analyzed using student’s “t” test. Results: No significant statistical difference was noted between the right and left mandibular canines amongst males and females (same sex) but when comparing between males and females, there was highly statistical significant difference (P < 0.001). The calculated standard MCI for canines of males and females found to be 0.2504. With these calculations we could predict sex correctly at 75.97% in this study (Male: 71.67% and Female: 78.72%). Conclusion: MCI is a quick and reliable method for sexual identification when a standard for the population is available. With these calculations, we could predict the sex correctly at 75.97 % in this study. This method can be used as adjunct to other available tools for sex determination. DNA studies can reveal sex accurately.Availability of comprehensive database with “NADRA” can also be used as adjunct to “MCI” to enhance the accuracy in determination of sex and identity of the person in Pakistan.

scholarly journals Avaliação postural de sujeitos com amputação de membro inferior

2019 ◽  
Vol 29 (1) ◽  
pp. 33103
Author(s):  
Viviane Leite ◽  
Lisiane Piazza Luza ◽  
Sara Maria Soffiatti Dias ◽  
Thamara Caviquioni ◽  
Ediane Roberge Fernandes Zampirolo ◽  
...  
Keyword(s):  
Lower Limb ◽  
T Test ◽  
Limb Amputation ◽  
Postural Asymmetry ◽  
Significance Level ◽  
Below The Knee ◽  
Significant Difference ◽  
Ankle Angle ◽  
The Right ◽  
Left Scapula

AIMS: To evaluate the posture of subjects with lower limb amputee.METHODS: Ten subjects participated in the study, males, with 38,2 ± 8,2 years, with unilateral lower limb amputation and prosthesis users. For the postural evaluation, the Postural Evaluation Software (SAPO) was used, and the images were evaluated according to the software protocol. Data were analyzed through descriptive and inferential statistics (independent t test), with a significance level of p ≤ 0,05.RESULTS: The main alterations observed were: rearfoot valgus enlargement, flexed ankle, head tilted to the right and trunk in flexion. When compared the posture according to time of amputation, was observed a statistically significant difference in the horizontal asymmetry of scapula in relation to T3 (p = 0,004), being that subjects with amputation time of up to six years presented the left scapula higher than the right one (-5,28 ± 8,16°) and those with more than six years of amputation had the right upper right scapula (19,42 ± 11°). In the comparison between amputation levels, there was a statistically significant difference in the ankle angle (p = 0,008), with subjects with amputation below the knee presenting greater ankle flexion (81,97 ± 1,72°) than those with amputation at the level of the knee and above this (87,30 ± 2,65°).CONCLUSIONS: The findings of the present study demonstrate that all the evaluated subjects presented some postural alteration, however, it cannot be affirmed that the postural asymmetry of these is due to the amputation.

Radiological observations on the olfactory fossa and ethmoid roof

2010 ◽  
Vol 124 (12) ◽  
pp. 1251-1256 ◽  
Author(s):  
S Elwany ◽  
A Medanni ◽  
M Eid ◽  
A Aly ◽  
A El-Daly ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Cribriform Plate ◽  
Type I ◽  
Adult Males ◽  
Significant Difference ◽  
Computed Tomography Scans ◽  
Operative Evaluation ◽  
Males And Females ◽  
The Right

AbstractObjective:To establish normative dimensions for the depth of the olfactory fossa, the length and angulation of the lateral lamella of the cribriform plate, and the height of the ethmoid roof, in adult males and females.Design:The study assessed 300 high resolution, multislice computed tomography scans of the paranasal sinuses, which were evaluated using Merge Efilm software (version 2.0.0, build 37).Results:According to the original Keros classification, the type II olfactory fossa was the commonest type in men (66.7 per cent), while the type I fossa was commonest in women (53 per cent). A difference of 3 mm or more between the depths of the right and left olfactory fossae was present in 11 per cent of men and 2 per cent of women. The lateral lamella of the cribriform plate was significantly shorter and less oblique in men than in women. The length of the lateral lamella was greater anteriorly than posteriorly in both sexes. There was a statistically significant difference between the angle of the lateral lamellae, comparing right and left sides. The ethmoid roof was lower in women than men.Conclusion:The observed differences between men and women and between the right and left sides are of surgical importance, and should alert surgeons to the need for thorough, systematic pre-operative evaluation of computed tomography scans.

scholarly journals A novel method using 3D CBCT to assess anterior malar prominence among native Bangalore population- A descriptive study

2021 ◽  
Vol 7 (3) ◽  
pp. 223-228
Author(s):  
Sanda Aamani ◽  
Hemanth M ◽  
Sharmada B K ◽  
Karthik J Kabbur ◽  
Goutham Kalladka
Keyword(s):  
Descriptive Study ◽  
T Test ◽  
Linear Measurements ◽  
Mean Values ◽  
Significant Difference ◽  
The Face ◽  
Novel Method ◽  
Males And Females ◽  
The Mean ◽  
Paired T Test

There is a lack of accurate three-dimensional studies to locate malar prominence for specified population, this study aims to locate the malar prominence using stable landmarks using CBCT. To derive a novel method to accurately locate the malar prominence and to assess and compare the malar prominence between males and females among Bangalore population using 3D CBCT study. All CBCT scans of study subjects belong to Bangalore population were collected from the pre-existing data available in Radiology imaging Solutions (CBCT centre), Bangalore during the period of September 10th to October 10th 2020. This is a descriptive study. A total of 42 subjects including 21 Males and 21 females were assessed using full skull CBCT scans which were converted to DICOM format and reconstructed into 3D images using NEMOCEPH 3D software. Landmarks used to locate the malar prominence were Fzs, Z, Zm and Ans. The intersection of these landmarks is considered to be as constructed maxillozygion(My). For the accuracy of the constructed Maxillozygion point (My), the distance between the actual Maxillozygion (Mzy) and constructed Maxillozygion (My) is measured and calculated between left and right halves of males and females. Three Orthogonal planes constructed were Midsagittal, Axial and Coronal Planes and the linear measurements with reference to all three reference planes in both the groups are measured. Student paired t- Test, Independent Student t Test, Mann Whitney Test. The mean distance from Mzy and my between right and left half of the face was compared using student paired t- Test. There is no significant difference (p=0.35).The mean values of the constructed anatomical landmark (maxillozygion) coordinated to three orthogonal planes between right and left sides of the face is compared using student paired T test and for both the genders (males and females) was compared using Independent Student t Test, and it is significantly higher in males as compared to females and it is statistically significant at (p=0.01). The location of malar prominence using CBCT by a novel method for Bangalore population is found which can be helpful in diagnosis and treatment planning for malar augmentation, camouflage treatment in subjects with midface deficiencies.

scholarly journals Does Performance of Speed-Accuracy Movements Depend on Gender and the Left or the Right Hand?

2018 ◽  
Vol 2 (77) ◽  
Author(s):  
Kristina Motiejūnaitė ◽  
Dalia Mickevičienė ◽  
Albertas Skurvydas ◽  
Diana Karanauskienė ◽  
Mantas Mickevičius
Keyword(s):  
Reaction Time ◽  
Movement Speed ◽  
Movement Trajectory ◽  
Dynamic Parameters ◽  
Left Hand ◽  
Right Hand ◽  
Significant Difference ◽  
Males And Females ◽  
The Right ◽  
Speed Accuracy

The aim of the study was to establish the differences in men and women’s performance of speed-accuracy movements with their left (LH) and right (RH) hands. The research participants were 24 healthy right-handed subjects: 12 males (aged 20.8 ± 1.1 years) and 12 females (aged 21.4 ± 1.0 years). The research was carried out in the Laboratory of Human Motor Control at the Lithuanian Academy of Physical Education (LAPE) applying the analyzer of dynamic parameters of human leg and arm movement (DPA-1; Patent No. 5251; 2005 08 25), which is used for the qualitative estimation of the dynamic parameters of one arm and leg target movement, two arms and legs coordinated and independent target movements, when the resistance power and target are coded with different programmable parameters. The task was performed with the right and then with the left hand (50 repetitions with each hand). The subjects had two tasks: a) to react as quickly as possible (simple task); b) to react as quickly as possible and to hit the target on a computer screen quickly and accurately (complicated task). We registered the maximal and mean movement speed, reaction time, movement trajectory and intraindividual variability of the right and the left hands. Conclusions. There was no significant difference in accuracy between female and male subjects, thought female subjects performed speed-accuracy task more slowly than men. Both males and females performed the speed-accuracy task with their right hand faster and more accurately than with their left hand. Performing movements with different hands the indices of reaction time did not differ significantly. Both males and females performed movements with their right and left hands with the same intraindividual variability.Keywords: movement control, reaction time, speed-accuracy task, right and left hand, gender. 

scholarly journals University Students Attitudes: Croatia Versus Turkey

2011 ◽  
Vol 7 (2) ◽  
pp. 23-32
Author(s):  
Norman V. Schnurr ◽  
Stanko Racic ◽  
Tomislav Gelo
Keyword(s):  
University Students ◽  
Business School ◽  
T Test ◽  
The Other ◽  
School Students ◽  
Significant Difference ◽  
The Usa ◽  
Males And Females ◽  
Students Attitudes ◽  
Future Business

We surveyed Croatian and Turkish business school students, from universities emphasizing globalization, to analyze whether consideration for travel to the USA is affected by attitude toward their own country and the USA The results from comparing and contrasting differences between these countries and differences between males and females in each country - and their counterparts in the other country - may also give an outlook to future business relationships between the USA and these countries. Based on a t-test, Croatian students ratings of the USA were significantly more positive, but there was no statistically significant difference in expectations to travel to the USA.

scholarly journals An Analysis on Compliment Responses in English among Javanese People

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Arum Sekar Nurhijannah
Keyword(s):  
English Learners ◽  
T Test ◽  
Male And Female ◽  
Paired Samples ◽  
Significant Difference ◽  
Compliment Responses ◽  
Completion Test ◽  
Males And Females

The study aims at exploring the differences of compliment responses in English among Indonesian males and females. The study consists of 20 English learners in University State of Yogyakarta. The participants are expected to respond five scenarios in a modified Discourse Completion Test (DCT). The participants’ responses are submitted to SPSS and Paired Samples T-Test is applied. It reveals that each scenario has different responses but it doesn’t have significant difference among male and female participants in responding the compliments. Both male and female participants tend to agree the compliment using appreciation token.

scholarly journals Analisis Kinerja Keuangan Perusahaan Sebelum dan Sesudah Right Issue di BEI

2018 ◽  
Vol 7 (3) ◽  
pp. 1623
Author(s):  
Guido Gian Layuk Runtung ◽  
I Putu Yadnya
Keyword(s):  
Data Analysis ◽  
Financial Performance ◽  
Research Data ◽  
T Test ◽  
Financial Ratios ◽  
Paired Sample ◽  
Analysis Technique ◽  
Significant Difference ◽  
Before And After ◽  
The Right

The Purpose of this study was to analyze the diffrences in financial performance before and after right issue. Right issue a corporate action by the company by issuing new shares offered to existing shareholders. Sampling in this study using method purposive sampling. The samples in this research are 33 companies that conduct period 2011 – 2015. The financial performance in will be analysis through the five financial ratios namely CR, DER, TAT, ROA, and PER. This research data analysis technique using paired sample t test and Wilcoxon signed ranks test. The results showed that significant diffrences in TAT ratio before and after the right issue. While the research for the ratios of CR, DER, ROA, and PER showed no significant difference before and after right issue. These result indicate that the company’s financial performance two years after the right issue is more efficient in utilizing company’s assets in order to increase sales.

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